marshalling to implement data sharing and copying clauses.
Contributed by Diego Novillo <dnovillo@redhat.com>
- Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2005-2014 Free Software Foundation, Inc.
This file is part of GCC.
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
+#include "stringpool.h"
+#include "stor-layout.h"
#include "rtl.h"
+#include "pointer-set.h"
+#include "basic-block.h"
+#include "tree-ssa-alias.h"
+#include "internal-fn.h"
+#include "gimple-fold.h"
+#include "gimple-expr.h"
+#include "is-a.h"
#include "gimple.h"
+#include "gimplify.h"
+#include "gimple-iterator.h"
+#include "gimplify-me.h"
+#include "gimple-walk.h"
#include "tree-iterator.h"
#include "tree-inline.h"
#include "langhooks.h"
#include "diagnostic-core.h"
-#include "tree-flow.h"
-#include "timevar.h"
+#include "gimple-ssa.h"
+#include "cgraph.h"
+#include "tree-cfg.h"
+#include "tree-phinodes.h"
+#include "ssa-iterators.h"
+#include "tree-ssanames.h"
+#include "tree-into-ssa.h"
+#include "expr.h"
+#include "tree-dfa.h"
+#include "tree-ssa.h"
#include "flags.h"
#include "function.h"
#include "expr.h"
#include "tree-pass.h"
-#include "ggc.h"
#include "except.h"
#include "splay-tree.h"
#include "optabs.h"
#include "cfgloop.h"
+#include "target.h"
+#include "omp-low.h"
+#include "gimple-low.h"
+#include "tree-cfgcleanup.h"
+#include "pretty-print.h"
+#include "ipa-prop.h"
+#include "tree-nested.h"
+#include "tree-eh.h"
/* Lowering of OpenMP parallel and workshare constructs proceeds in two
scanned for parallel regions which are then moved to a new
function, to be invoked by the thread library. */
+/* Parallel region information. Every parallel and workshare
+ directive is enclosed between two markers, the OMP_* directive
+ and a corresponding OMP_RETURN statement. */
+
+struct omp_region
+{
+ /* The enclosing region. */
+ struct omp_region *outer;
+
+ /* First child region. */
+ struct omp_region *inner;
+
+ /* Next peer region. */
+ struct omp_region *next;
+
+ /* Block containing the omp directive as its last stmt. */
+ basic_block entry;
+
+ /* Block containing the OMP_RETURN as its last stmt. */
+ basic_block exit;
+
+ /* Block containing the OMP_CONTINUE as its last stmt. */
+ basic_block cont;
+
+ /* If this is a combined parallel+workshare region, this is a list
+ of additional arguments needed by the combined parallel+workshare
+ library call. */
+ vec<tree, va_gc> *ws_args;
+
+ /* The code for the omp directive of this region. */
+ enum gimple_code type;
+
+ /* Schedule kind, only used for OMP_FOR type regions. */
+ enum omp_clause_schedule_kind sched_kind;
+
+ /* True if this is a combined parallel+workshare region. */
+ bool is_combined_parallel;
+};
+
/* Context structure. Used to store information about each parallel
directive in the code. */
construct. In the case of a parallel, this is in the child function. */
tree block_vars;
+ /* Label to which GOMP_cancel{,llation_point} and explicit and implicit
+ barriers should jump to during omplower pass. */
+ tree cancel_label;
+
/* What to do with variables with implicitly determined sharing
attributes. */
enum omp_clause_default_kind default_kind;
/* True if this parallel directive is nested within another. */
bool is_nested;
+
+ /* True if this construct can be cancelled. */
+ bool cancellable;
} omp_context;
static splay_tree all_contexts;
static int taskreg_nesting_level;
-struct omp_region *root_omp_region;
+static int target_nesting_level;
+static struct omp_region *root_omp_region;
static bitmap task_shared_vars;
-static void scan_omp (gimple_seq, omp_context *);
+static void scan_omp (gimple_seq *, omp_context *);
static tree scan_omp_1_op (tree *, int *, void *);
#define WALK_SUBSTMTS \
return walk_tree (tp, scan_omp_1_op, &wi, NULL);
}
-static void lower_omp (gimple_seq, omp_context *);
+static void lower_omp (gimple_seq *, omp_context *);
static tree lookup_decl_in_outer_ctx (tree, omp_context *);
static tree maybe_lookup_decl_in_outer_ctx (tree, omp_context *);
int i;
struct omp_for_data_loop dummy_loop;
location_t loc = gimple_location (for_stmt);
+ bool simd = gimple_omp_for_kind (for_stmt) & GF_OMP_FOR_KIND_SIMD;
+ bool distribute = gimple_omp_for_kind (for_stmt)
+ == GF_OMP_FOR_KIND_DISTRIBUTE;
fd->for_stmt = for_stmt;
fd->pre = NULL;
else
fd->loops = &fd->loop;
- fd->have_nowait = fd->have_ordered = false;
+ fd->have_nowait = distribute || simd;
+ fd->have_ordered = false;
fd->sched_kind = OMP_CLAUSE_SCHEDULE_STATIC;
fd->chunk_size = NULL_TREE;
collapse_iter = NULL;
fd->have_ordered = true;
break;
case OMP_CLAUSE_SCHEDULE:
+ gcc_assert (!distribute);
fd->sched_kind = OMP_CLAUSE_SCHEDULE_KIND (t);
fd->chunk_size = OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (t);
break;
+ case OMP_CLAUSE_DIST_SCHEDULE:
+ gcc_assert (distribute);
+ fd->chunk_size = OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (t);
+ break;
case OMP_CLAUSE_COLLAPSE:
if (fd->collapse > 1)
{
/* We only need to compute a default chunk size for ordered
static loops and dynamic loops. */
if (fd->sched_kind != OMP_CLAUSE_SCHEDULE_STATIC
- || fd->have_ordered
- || fd->collapse > 1)
+ || fd->have_ordered)
fd->chunk_size = (fd->sched_kind == OMP_CLAUSE_SCHEDULE_STATIC)
? integer_zero_node : integer_one_node;
}
else
loop = &dummy_loop;
-
loop->v = gimple_omp_for_index (for_stmt, i);
gcc_assert (SSA_VAR_P (loop->v));
gcc_assert (TREE_CODE (TREE_TYPE (loop->v)) == INTEGER_TYPE
case LT_EXPR:
case GT_EXPR:
break;
+ case NE_EXPR:
+ gcc_assert (gimple_omp_for_kind (for_stmt)
+ == GF_OMP_FOR_KIND_CILKSIMD);
+ break;
case LE_EXPR:
if (POINTER_TYPE_P (TREE_TYPE (loop->n2)))
loop->n2 = fold_build_pointer_plus_hwi_loc (loc, loop->n2, 1);
switch (TREE_CODE (t))
{
case PLUS_EXPR:
- case POINTER_PLUS_EXPR:
loop->step = TREE_OPERAND (t, 1);
break;
+ case POINTER_PLUS_EXPR:
+ loop->step = fold_convert (ssizetype, TREE_OPERAND (t, 1));
+ break;
case MINUS_EXPR:
loop->step = TREE_OPERAND (t, 1);
loop->step = fold_build1_loc (loc,
gcc_unreachable ();
}
- if (iter_type != long_long_unsigned_type_node)
+ if (simd
+ || (fd->sched_kind == OMP_CLAUSE_SCHEDULE_STATIC
+ && !fd->have_ordered))
+ {
+ if (fd->collapse == 1)
+ iter_type = TREE_TYPE (loop->v);
+ else if (i == 0
+ || TYPE_PRECISION (iter_type)
+ < TYPE_PRECISION (TREE_TYPE (loop->v)))
+ iter_type
+ = build_nonstandard_integer_type
+ (TYPE_PRECISION (TREE_TYPE (loop->v)), 1);
+ }
+ else if (iter_type != long_long_unsigned_type_node)
{
if (POINTER_TYPE_P (TREE_TYPE (loop->v)))
iter_type = long_long_unsigned_type_node;
if (collapse_count && *collapse_count == NULL)
{
- if ((i == 0 || count != NULL_TREE)
- && TREE_CODE (TREE_TYPE (loop->v)) == INTEGER_TYPE
- && TREE_CONSTANT (loop->n1)
- && TREE_CONSTANT (loop->n2)
- && TREE_CODE (loop->step) == INTEGER_CST)
+ t = fold_binary (loop->cond_code, boolean_type_node,
+ fold_convert (TREE_TYPE (loop->v), loop->n1),
+ fold_convert (TREE_TYPE (loop->v), loop->n2));
+ if (t && integer_zerop (t))
+ count = build_zero_cst (long_long_unsigned_type_node);
+ else if ((i == 0 || count != NULL_TREE)
+ && TREE_CODE (TREE_TYPE (loop->v)) == INTEGER_TYPE
+ && TREE_CONSTANT (loop->n1)
+ && TREE_CONSTANT (loop->n2)
+ && TREE_CODE (loop->step) == INTEGER_CST)
{
tree itype = TREE_TYPE (loop->v);
if (POINTER_TYPE_P (itype))
- itype
- = lang_hooks.types.type_for_size (TYPE_PRECISION (itype), 0);
+ itype = signed_type_for (itype);
t = build_int_cst (itype, (loop->cond_code == LT_EXPR ? -1 : 1));
t = fold_build2_loc (loc,
PLUS_EXPR, itype,
if (TREE_CODE (count) != INTEGER_CST)
count = NULL_TREE;
}
- else
+ else if (count && !integer_zerop (count))
count = NULL_TREE;
}
}
- if (count)
+ if (count
+ && !simd
+ && (fd->sched_kind != OMP_CLAUSE_SCHEDULE_STATIC
+ || fd->have_ordered))
{
if (!tree_int_cst_lt (count, TYPE_MAX_VALUE (long_integer_type_node)))
iter_type = long_long_unsigned_type_node;
parallel+workshare call. WS_STMT is the workshare directive being
expanded. */
-static VEC(tree,gc) *
-get_ws_args_for (gimple ws_stmt)
+static vec<tree, va_gc> *
+get_ws_args_for (gimple par_stmt, gimple ws_stmt)
{
tree t;
location_t loc = gimple_location (ws_stmt);
- VEC(tree,gc) *ws_args;
+ vec<tree, va_gc> *ws_args;
if (gimple_code (ws_stmt) == GIMPLE_OMP_FOR)
{
struct omp_for_data fd;
+ tree n1, n2;
extract_omp_for_data (ws_stmt, &fd, NULL);
+ n1 = fd.loop.n1;
+ n2 = fd.loop.n2;
- ws_args = VEC_alloc (tree, gc, 3 + (fd.chunk_size != 0));
+ if (gimple_omp_for_combined_into_p (ws_stmt))
+ {
+ tree innerc
+ = find_omp_clause (gimple_omp_parallel_clauses (par_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n1 = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n2 = OMP_CLAUSE_DECL (innerc);
+ }
- t = fold_convert_loc (loc, long_integer_type_node, fd.loop.n1);
- VEC_quick_push (tree, ws_args, t);
+ vec_alloc (ws_args, 3 + (fd.chunk_size != 0));
- t = fold_convert_loc (loc, long_integer_type_node, fd.loop.n2);
- VEC_quick_push (tree, ws_args, t);
+ t = fold_convert_loc (loc, long_integer_type_node, n1);
+ ws_args->quick_push (t);
+
+ t = fold_convert_loc (loc, long_integer_type_node, n2);
+ ws_args->quick_push (t);
t = fold_convert_loc (loc, long_integer_type_node, fd.loop.step);
- VEC_quick_push (tree, ws_args, t);
+ ws_args->quick_push (t);
if (fd.chunk_size)
{
t = fold_convert_loc (loc, long_integer_type_node, fd.chunk_size);
- VEC_quick_push (tree, ws_args, t);
+ ws_args->quick_push (t);
}
return ws_args;
the exit of the sections region. */
basic_block bb = single_succ (gimple_bb (ws_stmt));
t = build_int_cst (unsigned_type_node, EDGE_COUNT (bb->succs) - 1);
- ws_args = VEC_alloc (tree, gc, 1);
- VEC_quick_push (tree, ws_args, t);
+ vec_alloc (ws_args, 1);
+ ws_args->quick_push (t);
return ws_args;
}
|| (last_and_only_stmt (ws_entry_bb)
&& last_and_only_stmt (par_exit_bb))))
{
+ gimple par_stmt = last_stmt (par_entry_bb);
gimple ws_stmt = last_stmt (ws_entry_bb);
if (region->inner->type == GIMPLE_OMP_FOR)
region->is_combined_parallel = true;
region->inner->is_combined_parallel = true;
- region->ws_args = get_ws_args_for (ws_stmt);
+ region->ws_args = get_ws_args_for (par_stmt, ws_stmt);
}
}
if (TREE_ADDRESSABLE (decl))
return true;
+ /* lower_send_shared_vars only uses copy-in, but not copy-out
+ for these. */
+ if (TREE_READONLY (decl)
+ || ((TREE_CODE (decl) == RESULT_DECL
+ || TREE_CODE (decl) == PARM_DECL)
+ && DECL_BY_REFERENCE (decl)))
+ return false;
+
/* Disallow copy-in/out in nested parallel if
decl is shared in outer parallel, otherwise
each thread could store the shared variable
in its own copy-in location, making the
variable no longer really shared. */
- if (!TREE_READONLY (decl) && shared_ctx->is_nested)
+ if (shared_ctx->is_nested)
{
omp_context *up;
}
}
- /* For tasks avoid using copy-in/out, unless they are readonly
- (in which case just copy-in is used). As tasks can be
+ /* For tasks avoid using copy-in/out. As tasks can be
deferred or executed in different thread, when GOMP_task
returns, the task hasn't necessarily terminated. */
- if (!TREE_READONLY (decl) && is_task_ctx (shared_ctx))
+ if (is_task_ctx (shared_ctx))
{
tree outer;
maybe_mark_addressable_and_ret:
return false;
}
-/* Create a new VAR_DECL and copy information from VAR to it. */
-
-tree
-copy_var_decl (tree var, tree name, tree type)
-{
- tree copy = build_decl (DECL_SOURCE_LOCATION (var), VAR_DECL, name, type);
-
- TREE_ADDRESSABLE (copy) = TREE_ADDRESSABLE (var);
- TREE_THIS_VOLATILE (copy) = TREE_THIS_VOLATILE (var);
- DECL_GIMPLE_REG_P (copy) = DECL_GIMPLE_REG_P (var);
- DECL_ARTIFICIAL (copy) = DECL_ARTIFICIAL (var);
- DECL_IGNORED_P (copy) = DECL_IGNORED_P (var);
- DECL_CONTEXT (copy) = DECL_CONTEXT (var);
- TREE_USED (copy) = 1;
- DECL_SEEN_IN_BIND_EXPR_P (copy) = 1;
-
- return copy;
-}
-
/* Construct a new automatic decl similar to VAR. */
static tree
return omp_copy_decl_2 (var, DECL_NAME (var), TREE_TYPE (var), ctx);
}
+/* Build COMPONENT_REF and set TREE_THIS_VOLATILE and TREE_READONLY on it
+ as appropriate. */
+static tree
+omp_build_component_ref (tree obj, tree field)
+{
+ tree ret = build3 (COMPONENT_REF, TREE_TYPE (field), obj, field, NULL);
+ if (TREE_THIS_VOLATILE (field))
+ TREE_THIS_VOLATILE (ret) |= 1;
+ if (TREE_READONLY (field))
+ TREE_READONLY (ret) |= 1;
+ return ret;
+}
+
/* Build tree nodes to access the field for VAR on the receiver side. */
static tree
field = x;
x = build_simple_mem_ref (ctx->receiver_decl);
- x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL);
+ x = omp_build_component_ref (x, field);
if (by_ref)
x = build_simple_mem_ref (x);
bool by_ref = use_pointer_for_field (var, NULL);
x = build_receiver_ref (var, by_ref, ctx);
}
+ else if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD)
+ {
+ /* #pragma omp simd isn't a worksharing construct, and can reference even
+ private vars in its linear etc. clauses. */
+ x = NULL_TREE;
+ if (ctx->outer && is_taskreg_ctx (ctx))
+ x = lookup_decl (var, ctx->outer);
+ else if (ctx->outer)
+ x = maybe_lookup_decl_in_outer_ctx (var, ctx);
+ if (x == NULL_TREE)
+ x = var;
+ }
else if (ctx->outer)
x = lookup_decl (var, ctx->outer);
else if (is_reference (var))
build_sender_ref (tree var, omp_context *ctx)
{
tree field = lookup_sfield (var, ctx);
- return build3 (COMPONENT_REF, TREE_TYPE (field),
- ctx->sender_decl, field, NULL);
+ return omp_build_component_ref (ctx->sender_decl, field);
}
/* Add a new field for VAR inside the structure CTX->SENDER_DECL. */
|| !splay_tree_lookup (ctx->sfield_map, (splay_tree_key) var));
type = TREE_TYPE (var);
- if (by_ref)
+ if (mask & 4)
+ {
+ gcc_assert (TREE_CODE (type) == ARRAY_TYPE);
+ type = build_pointer_type (build_pointer_type (type));
+ }
+ else if (by_ref)
type = build_pointer_type (type);
else if ((mask & 3) == 1 && is_reference (var))
type = TREE_TYPE (type);
}
-/* Return the parallel region associated with STMT. */
-
/* Debugging dumps for parallel regions. */
void dump_omp_region (FILE *, struct omp_region *, int);
void debug_omp_region (struct omp_region *);
/* Create a new parallel region starting at STMT inside region PARENT. */
-struct omp_region *
+static struct omp_region *
new_omp_region (basic_block bb, enum gimple_code type,
struct omp_region *parent)
{
finalize_task_copyfn (gimple task_stmt)
{
struct function *child_cfun;
- tree child_fn, old_fn;
- gimple_seq seq, new_seq;
+ tree child_fn;
+ gimple_seq seq = NULL, new_seq;
gimple bind;
child_fn = gimple_omp_task_copy_fn (task_stmt);
return;
child_cfun = DECL_STRUCT_FUNCTION (child_fn);
+ DECL_STRUCT_FUNCTION (child_fn)->curr_properties = cfun->curr_properties;
- /* Inform the callgraph about the new function. */
- DECL_STRUCT_FUNCTION (child_fn)->curr_properties
- = cfun->curr_properties;
-
- old_fn = current_function_decl;
push_cfun (child_cfun);
- current_function_decl = child_fn;
- bind = gimplify_body (&DECL_SAVED_TREE (child_fn), child_fn, false);
- seq = gimple_seq_alloc ();
+ bind = gimplify_body (child_fn, false);
gimple_seq_add_stmt (&seq, bind);
new_seq = maybe_catch_exception (seq);
if (new_seq != seq)
{
bind = gimple_build_bind (NULL, new_seq, NULL);
- seq = gimple_seq_alloc ();
+ seq = NULL;
gimple_seq_add_stmt (&seq, bind);
}
gimple_set_body (child_fn, seq);
pop_cfun ();
- current_function_decl = old_fn;
+ /* Inform the callgraph about the new function. */
cgraph_add_new_function (child_fn, false);
}
break;
case OMP_CLAUSE_SHARED:
+ /* Ignore shared directives in teams construct. */
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
+ break;
gcc_assert (is_taskreg_ctx (ctx));
decl = OMP_CLAUSE_DECL (c);
gcc_assert (!COMPLETE_TYPE_P (TREE_TYPE (decl))
case OMP_CLAUSE_FIRSTPRIVATE:
case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE_LINEAR:
decl = OMP_CLAUSE_DECL (c);
do_private:
if (is_variable_sized (decl))
install_var_local (decl, ctx);
break;
+ case OMP_CLAUSE__LOOPTEMP_:
+ gcc_assert (is_parallel_ctx (ctx));
+ decl = OMP_CLAUSE_DECL (c);
+ install_var_field (decl, false, 3, ctx);
+ install_var_local (decl, ctx);
+ break;
+
case OMP_CLAUSE_COPYPRIVATE:
case OMP_CLAUSE_COPYIN:
decl = OMP_CLAUSE_DECL (c);
case OMP_CLAUSE_FINAL:
case OMP_CLAUSE_IF:
case OMP_CLAUSE_NUM_THREADS:
+ case OMP_CLAUSE_NUM_TEAMS:
+ case OMP_CLAUSE_THREAD_LIMIT:
+ case OMP_CLAUSE_DEVICE:
case OMP_CLAUSE_SCHEDULE:
+ case OMP_CLAUSE_DIST_SCHEDULE:
+ case OMP_CLAUSE_DEPEND:
if (ctx->outer)
scan_omp_op (&OMP_CLAUSE_OPERAND (c, 0), ctx->outer);
break;
+ case OMP_CLAUSE_TO:
+ case OMP_CLAUSE_FROM:
+ case OMP_CLAUSE_MAP:
+ if (ctx->outer)
+ scan_omp_op (&OMP_CLAUSE_SIZE (c), ctx->outer);
+ decl = OMP_CLAUSE_DECL (c);
+ /* Global variables with "omp declare target" attribute
+ don't need to be copied, the receiver side will use them
+ directly. */
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && DECL_P (decl)
+ && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))
+ && lookup_attribute ("omp declare target",
+ DECL_ATTRIBUTES (decl)))
+ break;
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER)
+ {
+ /* Ignore OMP_CLAUSE_MAP_POINTER kind for arrays in
+ #pragma omp target data, there is nothing to map for
+ those. */
+ if (gimple_omp_target_kind (ctx->stmt) == GF_OMP_TARGET_KIND_DATA
+ && !POINTER_TYPE_P (TREE_TYPE (decl)))
+ break;
+ }
+ if (DECL_P (decl))
+ {
+ if (DECL_SIZE (decl)
+ && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST)
+ {
+ tree decl2 = DECL_VALUE_EXPR (decl);
+ gcc_assert (TREE_CODE (decl2) == INDIRECT_REF);
+ decl2 = TREE_OPERAND (decl2, 0);
+ gcc_assert (DECL_P (decl2));
+ install_var_field (decl2, true, 3, ctx);
+ install_var_local (decl2, ctx);
+ install_var_local (decl, ctx);
+ }
+ else
+ {
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER
+ && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)
+ && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
+ install_var_field (decl, true, 7, ctx);
+ else
+ install_var_field (decl, true, 3, ctx);
+ if (gimple_omp_target_kind (ctx->stmt)
+ == GF_OMP_TARGET_KIND_REGION)
+ install_var_local (decl, ctx);
+ }
+ }
+ else
+ {
+ tree base = get_base_address (decl);
+ tree nc = OMP_CLAUSE_CHAIN (c);
+ if (DECL_P (base)
+ && nc != NULL_TREE
+ && OMP_CLAUSE_CODE (nc) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_DECL (nc) == base
+ && OMP_CLAUSE_MAP_KIND (nc) == OMP_CLAUSE_MAP_POINTER
+ && integer_zerop (OMP_CLAUSE_SIZE (nc)))
+ {
+ OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) = 1;
+ OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (nc) = 1;
+ }
+ else
+ {
+ gcc_assert (!splay_tree_lookup (ctx->field_map,
+ (splay_tree_key) decl));
+ tree field
+ = build_decl (OMP_CLAUSE_LOCATION (c),
+ FIELD_DECL, NULL_TREE, ptr_type_node);
+ DECL_ALIGN (field) = TYPE_ALIGN (ptr_type_node);
+ insert_field_into_struct (ctx->record_type, field);
+ splay_tree_insert (ctx->field_map, (splay_tree_key) decl,
+ (splay_tree_value) field);
+ }
+ }
+ break;
+
case OMP_CLAUSE_NOWAIT:
case OMP_CLAUSE_ORDERED:
case OMP_CLAUSE_COLLAPSE:
case OMP_CLAUSE_UNTIED:
case OMP_CLAUSE_MERGEABLE:
+ case OMP_CLAUSE_PROC_BIND:
+ case OMP_CLAUSE_SAFELEN:
+ break;
+
+ case OMP_CLAUSE_ALIGNED:
+ decl = OMP_CLAUSE_DECL (c);
+ if (is_global_var (decl)
+ && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
+ install_var_local (decl, ctx);
break;
default:
case OMP_CLAUSE_PRIVATE:
case OMP_CLAUSE_FIRSTPRIVATE:
case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE_LINEAR:
decl = OMP_CLAUSE_DECL (c);
if (is_variable_sized (decl))
install_var_local (decl, ctx);
break;
case OMP_CLAUSE_SHARED:
+ /* Ignore shared directives in teams construct. */
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
+ break;
decl = OMP_CLAUSE_DECL (c);
if (! is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx)))
fixup_remapped_decl (decl, ctx, false);
break;
+ case OMP_CLAUSE_MAP:
+ if (gimple_omp_target_kind (ctx->stmt) == GF_OMP_TARGET_KIND_DATA)
+ break;
+ decl = OMP_CLAUSE_DECL (c);
+ if (DECL_P (decl)
+ && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))
+ && lookup_attribute ("omp declare target",
+ DECL_ATTRIBUTES (decl)))
+ break;
+ if (DECL_P (decl))
+ {
+ if (OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER
+ && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE
+ && !COMPLETE_TYPE_P (TREE_TYPE (decl)))
+ {
+ tree new_decl = lookup_decl (decl, ctx);
+ TREE_TYPE (new_decl)
+ = remap_type (TREE_TYPE (decl), &ctx->cb);
+ }
+ else if (DECL_SIZE (decl)
+ && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST)
+ {
+ tree decl2 = DECL_VALUE_EXPR (decl);
+ gcc_assert (TREE_CODE (decl2) == INDIRECT_REF);
+ decl2 = TREE_OPERAND (decl2, 0);
+ gcc_assert (DECL_P (decl2));
+ fixup_remapped_decl (decl2, ctx, false);
+ fixup_remapped_decl (decl, ctx, true);
+ }
+ else
+ fixup_remapped_decl (decl, ctx, false);
+ }
+ break;
+
case OMP_CLAUSE_COPYPRIVATE:
case OMP_CLAUSE_COPYIN:
case OMP_CLAUSE_DEFAULT:
case OMP_CLAUSE_IF:
case OMP_CLAUSE_NUM_THREADS:
+ case OMP_CLAUSE_NUM_TEAMS:
+ case OMP_CLAUSE_THREAD_LIMIT:
+ case OMP_CLAUSE_DEVICE:
case OMP_CLAUSE_SCHEDULE:
+ case OMP_CLAUSE_DIST_SCHEDULE:
case OMP_CLAUSE_NOWAIT:
case OMP_CLAUSE_ORDERED:
case OMP_CLAUSE_COLLAPSE:
case OMP_CLAUSE_UNTIED:
case OMP_CLAUSE_FINAL:
case OMP_CLAUSE_MERGEABLE:
+ case OMP_CLAUSE_PROC_BIND:
+ case OMP_CLAUSE_SAFELEN:
+ case OMP_CLAUSE_ALIGNED:
+ case OMP_CLAUSE_DEPEND:
+ case OMP_CLAUSE__LOOPTEMP_:
+ case OMP_CLAUSE_TO:
+ case OMP_CLAUSE_FROM:
break;
default:
if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION
&& OMP_CLAUSE_REDUCTION_PLACEHOLDER (c))
{
- scan_omp (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c), ctx);
- scan_omp (OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx);
+ scan_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c), ctx);
+ scan_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx);
}
else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE
&& OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c))
- scan_omp (OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx);
+ scan_omp (&OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx);
}
/* Create a new name for omp child function. Returns an identifier. */
-static GTY(()) unsigned int tmp_ompfn_id_num;
-
static tree
create_omp_child_function_name (bool task_copy)
{
DECL_EXTERNAL (decl) = 0;
DECL_CONTEXT (decl) = NULL_TREE;
DECL_INITIAL (decl) = make_node (BLOCK);
+ bool target_p = false;
+ if (lookup_attribute ("omp declare target",
+ DECL_ATTRIBUTES (current_function_decl)))
+ target_p = true;
+ else
+ {
+ omp_context *octx;
+ for (octx = ctx; octx; octx = octx->outer)
+ if (gimple_code (octx->stmt) == GIMPLE_OMP_TARGET
+ && gimple_omp_target_kind (octx->stmt)
+ == GF_OMP_TARGET_KIND_REGION)
+ {
+ target_p = true;
+ break;
+ }
+ }
+ if (target_p)
+ DECL_ATTRIBUTES (decl)
+ = tree_cons (get_identifier ("omp declare target"),
+ NULL_TREE, DECL_ATTRIBUTES (decl));
t = build_decl (DECL_SOURCE_LOCATION (decl),
RESULT_DECL, NULL_TREE, void_type_node);
pop_cfun ();
}
+/* Callback for walk_gimple_seq. Check if combined parallel
+ contains gimple_omp_for_combined_into_p OMP_FOR. */
+
+static tree
+find_combined_for (gimple_stmt_iterator *gsi_p,
+ bool *handled_ops_p,
+ struct walk_stmt_info *wi)
+{
+ gimple stmt = gsi_stmt (*gsi_p);
+
+ *handled_ops_p = true;
+ switch (gimple_code (stmt))
+ {
+ WALK_SUBSTMTS;
+
+ case GIMPLE_OMP_FOR:
+ if (gimple_omp_for_combined_into_p (stmt)
+ && gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_FOR)
+ {
+ wi->info = stmt;
+ return integer_zero_node;
+ }
+ break;
+ default:
+ break;
+ }
+ return NULL;
+}
/* Scan an OpenMP parallel directive. */
return;
}
+ if (gimple_omp_parallel_combined_p (stmt))
+ {
+ gimple for_stmt;
+ struct walk_stmt_info wi;
+
+ memset (&wi, 0, sizeof (wi));
+ wi.val_only = true;
+ walk_gimple_seq (gimple_omp_body (stmt),
+ find_combined_for, NULL, &wi);
+ for_stmt = (gimple) wi.info;
+ if (for_stmt)
+ {
+ struct omp_for_data fd;
+ extract_omp_for_data (for_stmt, &fd, NULL);
+ /* We need two temporaries with fd.loop.v type (istart/iend)
+ and then (fd.collapse - 1) temporaries with the same
+ type for count2 ... countN-1 vars if not constant. */
+ size_t count = 2, i;
+ tree type = fd.iter_type;
+ if (fd.collapse > 1
+ && TREE_CODE (fd.loop.n2) != INTEGER_CST)
+ count += fd.collapse - 1;
+ for (i = 0; i < count; i++)
+ {
+ tree temp = create_tmp_var (type, NULL);
+ tree c = build_omp_clause (UNKNOWN_LOCATION,
+ OMP_CLAUSE__LOOPTEMP_);
+ OMP_CLAUSE_DECL (c) = temp;
+ OMP_CLAUSE_CHAIN (c) = gimple_omp_parallel_clauses (stmt);
+ gimple_omp_parallel_set_clauses (stmt, c);
+ }
+ }
+ }
+
ctx = new_omp_context (stmt, outer_ctx);
if (taskreg_nesting_level > 1)
ctx->is_nested = true;
gimple_omp_parallel_set_child_fn (stmt, ctx->cb.dst_fn);
scan_sharing_clauses (gimple_omp_parallel_clauses (stmt), ctx);
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
if (TYPE_FIELDS (ctx->record_type) == NULL)
ctx->record_type = ctx->receiver_decl = NULL;
create_omp_child_function (ctx, true);
}
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
if (TYPE_FIELDS (ctx->record_type) == NULL)
{
scan_sharing_clauses (gimple_omp_for_clauses (stmt), ctx);
- scan_omp (gimple_omp_for_pre_body (stmt), ctx);
+ scan_omp (gimple_omp_for_pre_body_ptr (stmt), ctx);
for (i = 0; i < gimple_omp_for_collapse (stmt); i++)
{
scan_omp_op (gimple_omp_for_index_ptr (stmt, i), ctx);
scan_omp_op (gimple_omp_for_final_ptr (stmt, i), ctx);
scan_omp_op (gimple_omp_for_incr_ptr (stmt, i), ctx);
}
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
}
/* Scan an OpenMP sections directive. */
ctx = new_omp_context (stmt, outer_ctx);
scan_sharing_clauses (gimple_omp_sections_clauses (stmt), ctx);
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
}
/* Scan an OpenMP single directive. */
TYPE_NAME (ctx->record_type) = name;
scan_sharing_clauses (gimple_omp_single_clauses (stmt), ctx);
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
if (TYPE_FIELDS (ctx->record_type) == NULL)
ctx->record_type = NULL;
layout_type (ctx->record_type);
}
+/* Scan an OpenMP target{, data, update} directive. */
+
+static void
+scan_omp_target (gimple stmt, omp_context *outer_ctx)
+{
+ omp_context *ctx;
+ tree name;
+ int kind = gimple_omp_target_kind (stmt);
+
+ ctx = new_omp_context (stmt, outer_ctx);
+ ctx->field_map = splay_tree_new (splay_tree_compare_pointers, 0, 0);
+ ctx->default_kind = OMP_CLAUSE_DEFAULT_SHARED;
+ ctx->record_type = lang_hooks.types.make_type (RECORD_TYPE);
+ name = create_tmp_var_name (".omp_data_t");
+ name = build_decl (gimple_location (stmt),
+ TYPE_DECL, name, ctx->record_type);
+ DECL_ARTIFICIAL (name) = 1;
+ DECL_NAMELESS (name) = 1;
+ TYPE_NAME (ctx->record_type) = name;
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ create_omp_child_function (ctx, false);
+ gimple_omp_target_set_child_fn (stmt, ctx->cb.dst_fn);
+ }
+
+ scan_sharing_clauses (gimple_omp_target_clauses (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
+
+ if (TYPE_FIELDS (ctx->record_type) == NULL)
+ ctx->record_type = ctx->receiver_decl = NULL;
+ else
+ {
+ TYPE_FIELDS (ctx->record_type)
+ = nreverse (TYPE_FIELDS (ctx->record_type));
+#ifdef ENABLE_CHECKING
+ tree field;
+ unsigned int align = DECL_ALIGN (TYPE_FIELDS (ctx->record_type));
+ for (field = TYPE_FIELDS (ctx->record_type);
+ field;
+ field = DECL_CHAIN (field))
+ gcc_assert (DECL_ALIGN (field) == align);
+#endif
+ layout_type (ctx->record_type);
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ fixup_child_record_type (ctx);
+ }
+}
+
+/* Scan an OpenMP teams directive. */
-/* Check OpenMP nesting restrictions. */
static void
-check_omp_nesting_restrictions (gimple stmt, omp_context *ctx)
+scan_omp_teams (gimple stmt, omp_context *outer_ctx)
+{
+ omp_context *ctx = new_omp_context (stmt, outer_ctx);
+ scan_sharing_clauses (gimple_omp_teams_clauses (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
+}
+
+/* Check OpenMP nesting restrictions. */
+static bool
+check_omp_nesting_restrictions (gimple stmt, omp_context *ctx)
{
+ if (ctx != NULL)
+ {
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD)
+ {
+ error_at (gimple_location (stmt),
+ "OpenMP constructs may not be nested inside simd region");
+ return false;
+ }
+ else if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
+ {
+ if ((gimple_code (stmt) != GIMPLE_OMP_FOR
+ || (gimple_omp_for_kind (stmt)
+ != GF_OMP_FOR_KIND_DISTRIBUTE))
+ && gimple_code (stmt) != GIMPLE_OMP_PARALLEL)
+ {
+ error_at (gimple_location (stmt),
+ "only distribute or parallel constructs are allowed to "
+ "be closely nested inside teams construct");
+ return false;
+ }
+ }
+ }
switch (gimple_code (stmt))
{
case GIMPLE_OMP_FOR:
+ if (gimple_omp_for_kind (stmt) & GF_OMP_FOR_KIND_SIMD)
+ return true;
+ if (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_DISTRIBUTE)
+ {
+ if (ctx != NULL && gimple_code (ctx->stmt) != GIMPLE_OMP_TEAMS)
+ {
+ error_at (gimple_location (stmt),
+ "distribute construct must be closely nested inside "
+ "teams construct");
+ return false;
+ }
+ return true;
+ }
+ /* FALLTHRU */
+ case GIMPLE_CALL:
+ if (is_gimple_call (stmt)
+ && (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ || DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCELLATION_POINT))
+ {
+ const char *bad = NULL;
+ const char *kind = NULL;
+ if (ctx == NULL)
+ {
+ error_at (gimple_location (stmt), "orphaned %qs construct",
+ DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ ? "#pragma omp cancel"
+ : "#pragma omp cancellation point");
+ return false;
+ }
+ switch (tree_fits_shwi_p (gimple_call_arg (stmt, 0))
+ ? tree_to_shwi (gimple_call_arg (stmt, 0))
+ : 0)
+ {
+ case 1:
+ if (gimple_code (ctx->stmt) != GIMPLE_OMP_PARALLEL)
+ bad = "#pragma omp parallel";
+ else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ && !integer_zerop (gimple_call_arg (stmt, 1)))
+ ctx->cancellable = true;
+ kind = "parallel";
+ break;
+ case 2:
+ if (gimple_code (ctx->stmt) != GIMPLE_OMP_FOR
+ || gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_FOR)
+ bad = "#pragma omp for";
+ else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ && !integer_zerop (gimple_call_arg (stmt, 1)))
+ {
+ ctx->cancellable = true;
+ if (find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
+ OMP_CLAUSE_NOWAIT))
+ warning_at (gimple_location (stmt), 0,
+ "%<#pragma omp cancel for%> inside "
+ "%<nowait%> for construct");
+ if (find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
+ OMP_CLAUSE_ORDERED))
+ warning_at (gimple_location (stmt), 0,
+ "%<#pragma omp cancel for%> inside "
+ "%<ordered%> for construct");
+ }
+ kind = "for";
+ break;
+ case 4:
+ if (gimple_code (ctx->stmt) != GIMPLE_OMP_SECTIONS
+ && gimple_code (ctx->stmt) != GIMPLE_OMP_SECTION)
+ bad = "#pragma omp sections";
+ else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ && !integer_zerop (gimple_call_arg (stmt, 1)))
+ {
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_SECTIONS)
+ {
+ ctx->cancellable = true;
+ if (find_omp_clause (gimple_omp_sections_clauses
+ (ctx->stmt),
+ OMP_CLAUSE_NOWAIT))
+ warning_at (gimple_location (stmt), 0,
+ "%<#pragma omp cancel sections%> inside "
+ "%<nowait%> sections construct");
+ }
+ else
+ {
+ gcc_assert (ctx->outer
+ && gimple_code (ctx->outer->stmt)
+ == GIMPLE_OMP_SECTIONS);
+ ctx->outer->cancellable = true;
+ if (find_omp_clause (gimple_omp_sections_clauses
+ (ctx->outer->stmt),
+ OMP_CLAUSE_NOWAIT))
+ warning_at (gimple_location (stmt), 0,
+ "%<#pragma omp cancel sections%> inside "
+ "%<nowait%> sections construct");
+ }
+ }
+ kind = "sections";
+ break;
+ case 8:
+ if (gimple_code (ctx->stmt) != GIMPLE_OMP_TASK)
+ bad = "#pragma omp task";
+ else
+ ctx->cancellable = true;
+ kind = "taskgroup";
+ break;
+ default:
+ error_at (gimple_location (stmt), "invalid arguments");
+ return false;
+ }
+ if (bad)
+ {
+ error_at (gimple_location (stmt),
+ "%<%s %s%> construct not closely nested inside of %qs",
+ DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ == BUILT_IN_GOMP_CANCEL
+ ? "#pragma omp cancel"
+ : "#pragma omp cancellation point", kind, bad);
+ return false;
+ }
+ }
+ /* FALLTHRU */
case GIMPLE_OMP_SECTIONS:
case GIMPLE_OMP_SINGLE:
- case GIMPLE_CALL:
for (; ctx != NULL; ctx = ctx->outer)
switch (gimple_code (ctx->stmt))
{
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_MASTER:
case GIMPLE_OMP_TASK:
+ case GIMPLE_OMP_CRITICAL:
if (is_gimple_call (stmt))
{
- warning (0, "barrier region may not be closely nested inside "
- "of work-sharing, critical, ordered, master or "
- "explicit task region");
- return;
+ if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt))
+ != BUILT_IN_GOMP_BARRIER)
+ return true;
+ error_at (gimple_location (stmt),
+ "barrier region may not be closely nested inside "
+ "of work-sharing, critical, ordered, master or "
+ "explicit task region");
+ return false;
}
- warning (0, "work-sharing region may not be closely nested inside "
- "of work-sharing, critical, ordered, master or explicit "
- "task region");
- return;
+ error_at (gimple_location (stmt),
+ "work-sharing region may not be closely nested inside "
+ "of work-sharing, critical, ordered, master or explicit "
+ "task region");
+ return false;
case GIMPLE_OMP_PARALLEL:
- return;
+ return true;
default:
break;
}
case GIMPLE_OMP_SECTIONS:
case GIMPLE_OMP_SINGLE:
case GIMPLE_OMP_TASK:
- warning (0, "master region may not be closely nested inside "
- "of work-sharing or explicit task region");
- return;
+ error_at (gimple_location (stmt),
+ "master region may not be closely nested inside "
+ "of work-sharing or explicit task region");
+ return false;
case GIMPLE_OMP_PARALLEL:
- return;
+ return true;
default:
break;
}
{
case GIMPLE_OMP_CRITICAL:
case GIMPLE_OMP_TASK:
- warning (0, "ordered region may not be closely nested inside "
- "of critical or explicit task region");
- return;
+ error_at (gimple_location (stmt),
+ "ordered region may not be closely nested inside "
+ "of critical or explicit task region");
+ return false;
case GIMPLE_OMP_FOR:
if (find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
OMP_CLAUSE_ORDERED) == NULL)
- warning (0, "ordered region must be closely nested inside "
+ {
+ error_at (gimple_location (stmt),
+ "ordered region must be closely nested inside "
"a loop region with an ordered clause");
- return;
+ return false;
+ }
+ return true;
case GIMPLE_OMP_PARALLEL:
- return;
+ error_at (gimple_location (stmt),
+ "ordered region must be closely nested inside "
+ "a loop region with an ordered clause");
+ return false;
default:
break;
}
&& (gimple_omp_critical_name (stmt)
== gimple_omp_critical_name (ctx->stmt)))
{
- warning (0, "critical region may not be nested inside a critical "
- "region with the same name");
- return;
+ error_at (gimple_location (stmt),
+ "critical region may not be nested inside a critical "
+ "region with the same name");
+ return false;
}
break;
+ case GIMPLE_OMP_TEAMS:
+ if (ctx == NULL
+ || gimple_code (ctx->stmt) != GIMPLE_OMP_TARGET
+ || gimple_omp_target_kind (ctx->stmt) != GF_OMP_TARGET_KIND_REGION)
+ {
+ error_at (gimple_location (stmt),
+ "teams construct not closely nested inside of target "
+ "region");
+ return false;
+ }
+ break;
default:
break;
}
+ return true;
}
return NULL_TREE;
}
+/* Return true if FNDECL is a setjmp or a longjmp. */
+
+static bool
+setjmp_or_longjmp_p (const_tree fndecl)
+{
+ if (DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL
+ && (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_SETJMP
+ || DECL_FUNCTION_CODE (fndecl) == BUILT_IN_LONGJMP))
+ return true;
+
+ tree declname = DECL_NAME (fndecl);
+ if (!declname)
+ return false;
+ const char *name = IDENTIFIER_POINTER (declname);
+ return !strcmp (name, "setjmp") || !strcmp (name, "longjmp");
+}
+
/* Helper function for scan_omp.
input_location = gimple_location (stmt);
/* Check the OpenMP nesting restrictions. */
- if (ctx != NULL)
+ bool remove = false;
+ if (is_gimple_omp (stmt))
+ remove = !check_omp_nesting_restrictions (stmt, ctx);
+ else if (is_gimple_call (stmt))
{
- if (is_gimple_omp (stmt))
- check_omp_nesting_restrictions (stmt, ctx);
- else if (is_gimple_call (stmt))
+ tree fndecl = gimple_call_fndecl (stmt);
+ if (fndecl)
{
- tree fndecl = gimple_call_fndecl (stmt);
- if (fndecl && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL
- && DECL_FUNCTION_CODE (fndecl) == BUILT_IN_GOMP_BARRIER)
- check_omp_nesting_restrictions (stmt, ctx);
+ if (setjmp_or_longjmp_p (fndecl)
+ && ctx
+ && gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD)
+ {
+ remove = true;
+ error_at (gimple_location (stmt),
+ "setjmp/longjmp inside simd construct");
+ }
+ else if (DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL)
+ switch (DECL_FUNCTION_CODE (fndecl))
+ {
+ case BUILT_IN_GOMP_BARRIER:
+ case BUILT_IN_GOMP_CANCEL:
+ case BUILT_IN_GOMP_CANCELLATION_POINT:
+ case BUILT_IN_GOMP_TASKYIELD:
+ case BUILT_IN_GOMP_TASKWAIT:
+ case BUILT_IN_GOMP_TASKGROUP_START:
+ case BUILT_IN_GOMP_TASKGROUP_END:
+ remove = !check_omp_nesting_restrictions (stmt, ctx);
+ break;
+ default:
+ break;
+ }
}
}
+ if (remove)
+ {
+ stmt = gimple_build_nop ();
+ gsi_replace (gsi, stmt, false);
+ }
*handled_ops_p = true;
case GIMPLE_OMP_SECTION:
case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_TASKGROUP:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_CRITICAL:
ctx = new_omp_context (stmt, ctx);
- scan_omp (gimple_omp_body (stmt), ctx);
+ scan_omp (gimple_omp_body_ptr (stmt), ctx);
+ break;
+
+ case GIMPLE_OMP_TARGET:
+ scan_omp_target (stmt, ctx);
+ break;
+
+ case GIMPLE_OMP_TEAMS:
+ scan_omp_teams (stmt, ctx);
break;
case GIMPLE_BIND:
clauses found during the scan. */
static void
-scan_omp (gimple_seq body, omp_context *ctx)
+scan_omp (gimple_seq *body_p, omp_context *ctx)
{
location_t saved_location;
struct walk_stmt_info wi;
wi.want_locations = true;
saved_location = input_location;
- walk_gimple_seq (body, scan_omp_1_stmt, scan_omp_1_op, &wi);
+ walk_gimple_seq_mod (body_p, scan_omp_1_stmt, scan_omp_1_op, &wi);
input_location = saved_location;
}
\f
/* Build a call to GOMP_barrier. */
-static tree
-build_omp_barrier (void)
+static gimple
+build_omp_barrier (tree lhs)
{
- return build_call_expr (builtin_decl_explicit (BUILT_IN_GOMP_BARRIER), 0);
+ tree fndecl = builtin_decl_explicit (lhs ? BUILT_IN_GOMP_BARRIER_CANCEL
+ : BUILT_IN_GOMP_BARRIER);
+ gimple g = gimple_build_call (fndecl, 0);
+ if (lhs)
+ gimple_call_set_lhs (g, lhs);
+ return g;
}
/* If a context was created for STMT when it was scanned, return it. */
}
}
-/* Generate code to implement the input clauses, FIRSTPRIVATE and COPYIN,
- from the receiver (aka child) side and initializers for REFERENCE_TYPE
- private variables. Initialization statements go in ILIST, while calls
- to destructors go in DLIST. */
+/* Return alignment to be assumed for var in CLAUSE, which should be
+ OMP_CLAUSE_ALIGNED. */
-static void
-lower_rec_input_clauses (tree clauses, gimple_seq *ilist, gimple_seq *dlist,
- omp_context *ctx)
+static tree
+omp_clause_aligned_alignment (tree clause)
{
- gimple_stmt_iterator diter;
- tree c, dtor, copyin_seq, x, ptr;
+ if (OMP_CLAUSE_ALIGNED_ALIGNMENT (clause))
+ return OMP_CLAUSE_ALIGNED_ALIGNMENT (clause);
+
+ /* Otherwise return implementation defined alignment. */
+ unsigned int al = 1;
+ enum machine_mode mode, vmode;
+ int vs = targetm.vectorize.autovectorize_vector_sizes ();
+ if (vs)
+ vs = 1 << floor_log2 (vs);
+ static enum mode_class classes[]
+ = { MODE_INT, MODE_VECTOR_INT, MODE_FLOAT, MODE_VECTOR_FLOAT };
+ for (int i = 0; i < 4; i += 2)
+ for (mode = GET_CLASS_NARROWEST_MODE (classes[i]);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ {
+ vmode = targetm.vectorize.preferred_simd_mode (mode);
+ if (GET_MODE_CLASS (vmode) != classes[i + 1])
+ continue;
+ while (vs
+ && GET_MODE_SIZE (vmode) < vs
+ && GET_MODE_2XWIDER_MODE (vmode) != VOIDmode)
+ vmode = GET_MODE_2XWIDER_MODE (vmode);
+
+ tree type = lang_hooks.types.type_for_mode (mode, 1);
+ if (type == NULL_TREE || TYPE_MODE (type) != mode)
+ continue;
+ type = build_vector_type (type, GET_MODE_SIZE (vmode)
+ / GET_MODE_SIZE (mode));
+ if (TYPE_MODE (type) != vmode)
+ continue;
+ if (TYPE_ALIGN_UNIT (type) > al)
+ al = TYPE_ALIGN_UNIT (type);
+ }
+ return build_int_cst (integer_type_node, al);
+}
+
+/* Return maximum possible vectorization factor for the target. */
+
+static int
+omp_max_vf (void)
+{
+ if (!optimize
+ || optimize_debug
+ || !flag_tree_loop_optimize
+ || (!flag_tree_loop_vectorize
+ && (global_options_set.x_flag_tree_loop_vectorize
+ || global_options_set.x_flag_tree_vectorize)))
+ return 1;
+
+ int vs = targetm.vectorize.autovectorize_vector_sizes ();
+ if (vs)
+ {
+ vs = 1 << floor_log2 (vs);
+ return vs;
+ }
+ enum machine_mode vqimode = targetm.vectorize.preferred_simd_mode (QImode);
+ if (GET_MODE_CLASS (vqimode) == MODE_VECTOR_INT)
+ return GET_MODE_NUNITS (vqimode);
+ return 1;
+}
+
+/* Helper function of lower_rec_input_clauses, used for #pragma omp simd
+ privatization. */
+
+static bool
+lower_rec_simd_input_clauses (tree new_var, omp_context *ctx, int &max_vf,
+ tree &idx, tree &lane, tree &ivar, tree &lvar)
+{
+ if (max_vf == 0)
+ {
+ max_vf = omp_max_vf ();
+ if (max_vf > 1)
+ {
+ tree c = find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
+ OMP_CLAUSE_SAFELEN);
+ if (c
+ && compare_tree_int (OMP_CLAUSE_SAFELEN_EXPR (c), max_vf) == -1)
+ max_vf = tree_to_shwi (OMP_CLAUSE_SAFELEN_EXPR (c));
+ }
+ if (max_vf > 1)
+ {
+ idx = create_tmp_var (unsigned_type_node, NULL);
+ lane = create_tmp_var (unsigned_type_node, NULL);
+ }
+ }
+ if (max_vf == 1)
+ return false;
+
+ tree atype = build_array_type_nelts (TREE_TYPE (new_var), max_vf);
+ tree avar = create_tmp_var_raw (atype, NULL);
+ if (TREE_ADDRESSABLE (new_var))
+ TREE_ADDRESSABLE (avar) = 1;
+ DECL_ATTRIBUTES (avar)
+ = tree_cons (get_identifier ("omp simd array"), NULL,
+ DECL_ATTRIBUTES (avar));
+ gimple_add_tmp_var (avar);
+ ivar = build4 (ARRAY_REF, TREE_TYPE (new_var), avar, idx,
+ NULL_TREE, NULL_TREE);
+ lvar = build4 (ARRAY_REF, TREE_TYPE (new_var), avar, lane,
+ NULL_TREE, NULL_TREE);
+ if (DECL_P (new_var))
+ {
+ SET_DECL_VALUE_EXPR (new_var, lvar);
+ DECL_HAS_VALUE_EXPR_P (new_var) = 1;
+ }
+ return true;
+}
+
+/* Generate code to implement the input clauses, FIRSTPRIVATE and COPYIN,
+ from the receiver (aka child) side and initializers for REFERENCE_TYPE
+ private variables. Initialization statements go in ILIST, while calls
+ to destructors go in DLIST. */
+
+static void
+lower_rec_input_clauses (tree clauses, gimple_seq *ilist, gimple_seq *dlist,
+ omp_context *ctx, struct omp_for_data *fd)
+{
+ tree c, dtor, copyin_seq, x, ptr;
bool copyin_by_ref = false;
bool lastprivate_firstprivate = false;
+ bool reduction_omp_orig_ref = false;
int pass;
+ bool is_simd = (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD);
+ int max_vf = 0;
+ tree lane = NULL_TREE, idx = NULL_TREE;
+ tree ivar = NULL_TREE, lvar = NULL_TREE;
+ gimple_seq llist[2] = { NULL, NULL };
- *dlist = gimple_seq_alloc ();
- diter = gsi_start (*dlist);
copyin_seq = NULL;
+ /* Set max_vf=1 (which will later enforce safelen=1) in simd loops
+ with data sharing clauses referencing variable sized vars. That
+ is unnecessarily hard to support and very unlikely to result in
+ vectorized code anyway. */
+ if (is_simd)
+ for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
+ switch (OMP_CLAUSE_CODE (c))
+ {
+ case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE_PRIVATE:
+ case OMP_CLAUSE_FIRSTPRIVATE:
+ case OMP_CLAUSE_LASTPRIVATE:
+ case OMP_CLAUSE_LINEAR:
+ if (is_variable_sized (OMP_CLAUSE_DECL (c)))
+ max_vf = 1;
+ break;
+ default:
+ continue;
+ }
+
/* Do all the fixed sized types in the first pass, and the variable sized
types in the second pass. This makes sure that the scalar arguments to
the variable sized types are processed before we use them in the
continue;
break;
case OMP_CLAUSE_SHARED:
+ /* Ignore shared directives in teams construct. */
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
+ continue;
if (maybe_lookup_decl (OMP_CLAUSE_DECL (c), ctx) == NULL)
{
gcc_assert (is_global_var (OMP_CLAUSE_DECL (c)));
}
case OMP_CLAUSE_FIRSTPRIVATE:
case OMP_CLAUSE_COPYIN:
+ case OMP_CLAUSE_LINEAR:
+ break;
case OMP_CLAUSE_REDUCTION:
+ if (OMP_CLAUSE_REDUCTION_OMP_ORIG_REF (c))
+ reduction_omp_orig_ref = true;
+ break;
+ case OMP_CLAUSE__LOOPTEMP_:
+ /* Handle _looptemp_ clauses only on parallel. */
+ if (fd)
+ continue;
break;
case OMP_CLAUSE_LASTPRIVATE:
if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c))
continue;
}
break;
+ case OMP_CLAUSE_ALIGNED:
+ if (pass == 0)
+ continue;
+ var = OMP_CLAUSE_DECL (c);
+ if (TREE_CODE (TREE_TYPE (var)) == POINTER_TYPE
+ && !is_global_var (var))
+ {
+ new_var = maybe_lookup_decl (var, ctx);
+ if (new_var == NULL_TREE)
+ new_var = maybe_lookup_decl_in_outer_ctx (var, ctx);
+ x = builtin_decl_explicit (BUILT_IN_ASSUME_ALIGNED);
+ x = build_call_expr_loc (clause_loc, x, 2, new_var,
+ omp_clause_aligned_alignment (c));
+ x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x);
+ x = build2 (MODIFY_EXPR, TREE_TYPE (new_var), new_var, x);
+ gimplify_and_add (x, ilist);
+ }
+ else if (TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE
+ && is_global_var (var))
+ {
+ tree ptype = build_pointer_type (TREE_TYPE (var)), t, t2;
+ new_var = lookup_decl (var, ctx);
+ t = maybe_lookup_decl_in_outer_ctx (var, ctx);
+ t = build_fold_addr_expr_loc (clause_loc, t);
+ t2 = builtin_decl_explicit (BUILT_IN_ASSUME_ALIGNED);
+ t = build_call_expr_loc (clause_loc, t2, 2, t,
+ omp_clause_aligned_alignment (c));
+ t = fold_convert_loc (clause_loc, ptype, t);
+ x = create_tmp_var (ptype, NULL);
+ t = build2 (MODIFY_EXPR, ptype, x, t);
+ gimplify_and_add (t, ilist);
+ t = build_simple_mem_ref_loc (clause_loc, x);
+ SET_DECL_VALUE_EXPR (new_var, t);
+ DECL_HAS_VALUE_EXPR_P (new_var) = 1;
+ }
+ continue;
default:
continue;
}
allocate new backing storage for the new pointer
variable. This allows us to avoid changing all the
code that expects a pointer to something that expects
- a direct variable. Note that this doesn't apply to
- C++, since reference types are disallowed in data
- sharing clauses there, except for NRV optimized
- return values. */
+ a direct variable. */
if (pass == 0)
continue;
}
else if (TREE_CONSTANT (x))
{
- const char *name = NULL;
- if (DECL_NAME (var))
- name = IDENTIFIER_POINTER (DECL_NAME (new_var));
-
- x = create_tmp_var_raw (TREE_TYPE (TREE_TYPE (new_var)),
- name);
- gimple_add_tmp_var (x);
- TREE_ADDRESSABLE (x) = 1;
- x = build_fold_addr_expr_loc (clause_loc, x);
+ /* For reduction with placeholder in SIMD loop,
+ defer adding the initialization of the reference,
+ because if we decide to use SIMD array for it,
+ the initilization could cause expansion ICE. */
+ if (c_kind == OMP_CLAUSE_REDUCTION
+ && OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)
+ && is_simd)
+ x = NULL_TREE;
+ else
+ {
+ const char *name = NULL;
+ if (DECL_NAME (var))
+ name = IDENTIFIER_POINTER (DECL_NAME (new_var));
+
+ x = create_tmp_var_raw (TREE_TYPE (TREE_TYPE (new_var)),
+ name);
+ gimple_add_tmp_var (x);
+ TREE_ADDRESSABLE (x) = 1;
+ x = build_fold_addr_expr_loc (clause_loc, x);
+ }
}
else
{
x = build_call_expr_loc (clause_loc, atmp, 1, x);
}
- x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x);
- gimplify_assign (new_var, x, ilist);
+ if (x)
+ {
+ x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x);
+ gimplify_assign (new_var, x, ilist);
+ }
new_var = build_simple_mem_ref_loc (clause_loc, new_var);
}
switch (OMP_CLAUSE_CODE (c))
{
case OMP_CLAUSE_SHARED:
+ /* Ignore shared directives in teams construct. */
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
+ continue;
/* Shared global vars are just accessed directly. */
if (is_global_var (new_var))
break;
}
else
x = NULL;
- x = lang_hooks.decls.omp_clause_default_ctor (c, new_var, x);
- if (x)
- gimplify_and_add (x, ilist);
+ do_private:
+ tree nx;
+ nx = lang_hooks.decls.omp_clause_default_ctor (c, new_var, x);
+ if (is_simd)
+ {
+ tree y = lang_hooks.decls.omp_clause_dtor (c, new_var);
+ if ((TREE_ADDRESSABLE (new_var) || nx || y
+ || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE)
+ && lower_rec_simd_input_clauses (new_var, ctx, max_vf,
+ idx, lane, ivar, lvar))
+ {
+ if (nx)
+ x = lang_hooks.decls.omp_clause_default_ctor
+ (c, unshare_expr (ivar), x);
+ if (nx && x)
+ gimplify_and_add (x, &llist[0]);
+ if (y)
+ {
+ y = lang_hooks.decls.omp_clause_dtor (c, ivar);
+ if (y)
+ {
+ gimple_seq tseq = NULL;
+
+ dtor = y;
+ gimplify_stmt (&dtor, &tseq);
+ gimple_seq_add_seq (&llist[1], tseq);
+ }
+ }
+ break;
+ }
+ }
+ if (nx)
+ gimplify_and_add (nx, ilist);
/* FALLTHRU */
do_dtor:
dtor = x;
gimplify_stmt (&dtor, &tseq);
- gsi_insert_seq_before (&diter, tseq, GSI_SAME_STMT);
+ gimple_seq_add_seq (dlist, tseq);
}
break;
+ case OMP_CLAUSE_LINEAR:
+ if (!OMP_CLAUSE_LINEAR_NO_COPYIN (c))
+ goto do_firstprivate;
+ if (OMP_CLAUSE_LINEAR_NO_COPYOUT (c))
+ x = NULL;
+ else
+ x = build_outer_var_ref (var, ctx);
+ goto do_private;
+
case OMP_CLAUSE_FIRSTPRIVATE:
if (is_task_ctx (ctx))
{
goto do_dtor;
}
}
+ do_firstprivate:
x = build_outer_var_ref (var, ctx);
+ if (is_simd)
+ {
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR
+ && gimple_omp_for_combined_into_p (ctx->stmt))
+ {
+ tree stept = POINTER_TYPE_P (TREE_TYPE (x))
+ ? sizetype : TREE_TYPE (x);
+ tree t = fold_convert (stept,
+ OMP_CLAUSE_LINEAR_STEP (c));
+ tree c = find_omp_clause (clauses,
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (c);
+ tree l = OMP_CLAUSE_DECL (c);
+ if (fd->collapse == 1)
+ {
+ tree n1 = fd->loop.n1;
+ tree step = fd->loop.step;
+ tree itype = TREE_TYPE (l);
+ if (POINTER_TYPE_P (itype))
+ itype = signed_type_for (itype);
+ l = fold_build2 (MINUS_EXPR, itype, l, n1);
+ if (TYPE_UNSIGNED (itype)
+ && fd->loop.cond_code == GT_EXPR)
+ l = fold_build2 (TRUNC_DIV_EXPR, itype,
+ fold_build1 (NEGATE_EXPR,
+ itype, l),
+ fold_build1 (NEGATE_EXPR,
+ itype, step));
+ else
+ l = fold_build2 (TRUNC_DIV_EXPR, itype, l, step);
+ }
+ t = fold_build2 (MULT_EXPR, stept,
+ fold_convert (stept, l), t);
+ if (POINTER_TYPE_P (TREE_TYPE (x)))
+ x = fold_build2 (POINTER_PLUS_EXPR,
+ TREE_TYPE (x), x, t);
+ else
+ x = fold_build2 (PLUS_EXPR, TREE_TYPE (x), x, t);
+ }
+
+ if ((OMP_CLAUSE_CODE (c) != OMP_CLAUSE_LINEAR
+ || TREE_ADDRESSABLE (new_var))
+ && lower_rec_simd_input_clauses (new_var, ctx, max_vf,
+ idx, lane, ivar, lvar))
+ {
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR)
+ {
+ tree iv = create_tmp_var (TREE_TYPE (new_var), NULL);
+ x = lang_hooks.decls.omp_clause_copy_ctor (c, iv, x);
+ gimplify_and_add (x, ilist);
+ gimple_stmt_iterator gsi
+ = gsi_start_1 (gimple_omp_body_ptr (ctx->stmt));
+ gimple g
+ = gimple_build_assign (unshare_expr (lvar), iv);
+ gsi_insert_before_without_update (&gsi, g,
+ GSI_SAME_STMT);
+ tree stept = POINTER_TYPE_P (TREE_TYPE (x))
+ ? sizetype : TREE_TYPE (x);
+ tree t = fold_convert (stept,
+ OMP_CLAUSE_LINEAR_STEP (c));
+ enum tree_code code = PLUS_EXPR;
+ if (POINTER_TYPE_P (TREE_TYPE (new_var)))
+ code = POINTER_PLUS_EXPR;
+ g = gimple_build_assign_with_ops (code, iv, iv, t);
+ gsi_insert_before_without_update (&gsi, g,
+ GSI_SAME_STMT);
+ break;
+ }
+ x = lang_hooks.decls.omp_clause_copy_ctor
+ (c, unshare_expr (ivar), x);
+ gimplify_and_add (x, &llist[0]);
+ x = lang_hooks.decls.omp_clause_dtor (c, ivar);
+ if (x)
+ {
+ gimple_seq tseq = NULL;
+
+ dtor = x;
+ gimplify_stmt (&dtor, &tseq);
+ gimple_seq_add_seq (&llist[1], tseq);
+ }
+ break;
+ }
+ }
x = lang_hooks.decls.omp_clause_copy_ctor (c, new_var, x);
gimplify_and_add (x, ilist);
goto do_dtor;
+
+ case OMP_CLAUSE__LOOPTEMP_:
+ gcc_assert (is_parallel_ctx (ctx));
+ x = build_outer_var_ref (var, ctx);
+ x = build2 (MODIFY_EXPR, TREE_TYPE (new_var), new_var, x);
+ gimplify_and_add (x, ilist);
break;
case OMP_CLAUSE_COPYIN:
if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c))
{
tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c);
+ gimple tseq;
x = build_outer_var_ref (var, ctx);
- if (is_reference (var))
+ if (is_reference (var)
+ && !useless_type_conversion_p (TREE_TYPE (placeholder),
+ TREE_TYPE (x)))
x = build_fold_addr_expr_loc (clause_loc, x);
SET_DECL_VALUE_EXPR (placeholder, x);
DECL_HAS_VALUE_EXPR_P (placeholder) = 1;
- lower_omp (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c), ctx);
- gimple_seq_add_seq (ilist,
- OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c));
+ tree new_vard = new_var;
+ if (is_reference (var))
+ {
+ gcc_assert (TREE_CODE (new_var) == MEM_REF);
+ new_vard = TREE_OPERAND (new_var, 0);
+ gcc_assert (DECL_P (new_vard));
+ }
+ if (is_simd
+ && lower_rec_simd_input_clauses (new_var, ctx, max_vf,
+ idx, lane, ivar, lvar))
+ {
+ if (new_vard == new_var)
+ {
+ gcc_assert (DECL_VALUE_EXPR (new_var) == lvar);
+ SET_DECL_VALUE_EXPR (new_var, ivar);
+ }
+ else
+ {
+ SET_DECL_VALUE_EXPR (new_vard,
+ build_fold_addr_expr (ivar));
+ DECL_HAS_VALUE_EXPR_P (new_vard) = 1;
+ }
+ x = lang_hooks.decls.omp_clause_default_ctor
+ (c, unshare_expr (ivar),
+ build_outer_var_ref (var, ctx));
+ if (x)
+ gimplify_and_add (x, &llist[0]);
+ if (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c))
+ {
+ tseq = OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c);
+ lower_omp (&tseq, ctx);
+ gimple_seq_add_seq (&llist[0], tseq);
+ }
+ OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c) = NULL;
+ tseq = OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c);
+ lower_omp (&tseq, ctx);
+ gimple_seq_add_seq (&llist[1], tseq);
+ OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL;
+ DECL_HAS_VALUE_EXPR_P (placeholder) = 0;
+ if (new_vard == new_var)
+ SET_DECL_VALUE_EXPR (new_var, lvar);
+ else
+ SET_DECL_VALUE_EXPR (new_vard,
+ build_fold_addr_expr (lvar));
+ x = lang_hooks.decls.omp_clause_dtor (c, ivar);
+ if (x)
+ {
+ tseq = NULL;
+ dtor = x;
+ gimplify_stmt (&dtor, &tseq);
+ gimple_seq_add_seq (&llist[1], tseq);
+ }
+ break;
+ }
+ /* If this is a reference to constant size reduction var
+ with placeholder, we haven't emitted the initializer
+ for it because it is undesirable if SIMD arrays are used.
+ But if they aren't used, we need to emit the deferred
+ initialization now. */
+ else if (is_reference (var) && is_simd)
+ {
+ tree z
+ = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (new_vard)));
+ if (TREE_CONSTANT (z))
+ {
+ const char *name = NULL;
+ if (DECL_NAME (var))
+ name = IDENTIFIER_POINTER (DECL_NAME (new_vard));
+
+ z = create_tmp_var_raw
+ (TREE_TYPE (TREE_TYPE (new_vard)), name);
+ gimple_add_tmp_var (z);
+ TREE_ADDRESSABLE (z) = 1;
+ z = build_fold_addr_expr_loc (clause_loc, z);
+ gimplify_assign (new_vard, z, ilist);
+ }
+ }
+ x = lang_hooks.decls.omp_clause_default_ctor
+ (c, new_var, unshare_expr (x));
+ if (x)
+ gimplify_and_add (x, ilist);
+ if (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c))
+ {
+ tseq = OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c);
+ lower_omp (&tseq, ctx);
+ gimple_seq_add_seq (ilist, tseq);
+ }
OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c) = NULL;
+ if (is_simd)
+ {
+ tseq = OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c);
+ lower_omp (&tseq, ctx);
+ gimple_seq_add_seq (dlist, tseq);
+ OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL;
+ }
DECL_HAS_VALUE_EXPR_P (placeholder) = 0;
+ goto do_dtor;
}
else
{
x = omp_reduction_init (c, TREE_TYPE (new_var));
gcc_assert (TREE_CODE (TREE_TYPE (new_var)) != ARRAY_TYPE);
- gimplify_assign (new_var, x, ilist);
+ enum tree_code code = OMP_CLAUSE_REDUCTION_CODE (c);
+
+ /* reduction(-:var) sums up the partial results, so it
+ acts identically to reduction(+:var). */
+ if (code == MINUS_EXPR)
+ code = PLUS_EXPR;
+
+ if (is_simd
+ && lower_rec_simd_input_clauses (new_var, ctx, max_vf,
+ idx, lane, ivar, lvar))
+ {
+ tree ref = build_outer_var_ref (var, ctx);
+
+ gimplify_assign (unshare_expr (ivar), x, &llist[0]);
+
+ x = build2 (code, TREE_TYPE (ref), ref, ivar);
+ ref = build_outer_var_ref (var, ctx);
+ gimplify_assign (ref, x, &llist[1]);
+ }
+ else
+ {
+ gimplify_assign (new_var, x, ilist);
+ if (is_simd)
+ {
+ tree ref = build_outer_var_ref (var, ctx);
+
+ x = build2 (code, TREE_TYPE (ref), ref, new_var);
+ ref = build_outer_var_ref (var, ctx);
+ gimplify_assign (ref, x, dlist);
+ }
+ }
}
break;
}
}
+ if (lane)
+ {
+ tree uid = create_tmp_var (ptr_type_node, "simduid");
+ /* Don't want uninit warnings on simduid, it is always uninitialized,
+ but we use it not for the value, but for the DECL_UID only. */
+ TREE_NO_WARNING (uid) = 1;
+ gimple g
+ = gimple_build_call_internal (IFN_GOMP_SIMD_LANE, 1, uid);
+ gimple_call_set_lhs (g, lane);
+ gimple_stmt_iterator gsi = gsi_start_1 (gimple_omp_body_ptr (ctx->stmt));
+ gsi_insert_before_without_update (&gsi, g, GSI_SAME_STMT);
+ c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE__SIMDUID_);
+ OMP_CLAUSE__SIMDUID__DECL (c) = uid;
+ OMP_CLAUSE_CHAIN (c) = gimple_omp_for_clauses (ctx->stmt);
+ gimple_omp_for_set_clauses (ctx->stmt, c);
+ g = gimple_build_assign_with_ops (INTEGER_CST, lane,
+ build_int_cst (unsigned_type_node, 0),
+ NULL_TREE);
+ gimple_seq_add_stmt (ilist, g);
+ for (int i = 0; i < 2; i++)
+ if (llist[i])
+ {
+ tree vf = create_tmp_var (unsigned_type_node, NULL);
+ g = gimple_build_call_internal (IFN_GOMP_SIMD_VF, 1, uid);
+ gimple_call_set_lhs (g, vf);
+ gimple_seq *seq = i == 0 ? ilist : dlist;
+ gimple_seq_add_stmt (seq, g);
+ tree t = build_int_cst (unsigned_type_node, 0);
+ g = gimple_build_assign_with_ops (INTEGER_CST, idx, t, NULL_TREE);
+ gimple_seq_add_stmt (seq, g);
+ tree body = create_artificial_label (UNKNOWN_LOCATION);
+ tree header = create_artificial_label (UNKNOWN_LOCATION);
+ tree end = create_artificial_label (UNKNOWN_LOCATION);
+ gimple_seq_add_stmt (seq, gimple_build_goto (header));
+ gimple_seq_add_stmt (seq, gimple_build_label (body));
+ gimple_seq_add_seq (seq, llist[i]);
+ t = build_int_cst (unsigned_type_node, 1);
+ g = gimple_build_assign_with_ops (PLUS_EXPR, idx, idx, t);
+ gimple_seq_add_stmt (seq, g);
+ gimple_seq_add_stmt (seq, gimple_build_label (header));
+ g = gimple_build_cond (LT_EXPR, idx, vf, body, end);
+ gimple_seq_add_stmt (seq, g);
+ gimple_seq_add_stmt (seq, gimple_build_label (end));
+ }
+ }
+
/* The copyin sequence is not to be executed by the main thread, since
that would result in self-copies. Perhaps not visible to scalars,
but it certainly is to C++ operator=. */
master thread doesn't modify it before it is copied over in all
threads. Similarly for variables in both firstprivate and
lastprivate clauses we need to ensure the lastprivate copying
- happens after firstprivate copying in all threads. */
- if (copyin_by_ref || lastprivate_firstprivate)
- gimplify_and_add (build_omp_barrier (), ilist);
+ happens after firstprivate copying in all threads. And similarly
+ for UDRs if initializer expression refers to omp_orig. */
+ if (copyin_by_ref || lastprivate_firstprivate || reduction_omp_orig_ref)
+ {
+ /* Don't add any barrier for #pragma omp simd or
+ #pragma omp distribute. */
+ if (gimple_code (ctx->stmt) != GIMPLE_OMP_FOR
+ || gimple_omp_for_kind (ctx->stmt) == GF_OMP_FOR_KIND_FOR)
+ gimple_seq_add_stmt (ilist, build_omp_barrier (NULL_TREE));
+ }
+
+ /* If max_vf is non-zero, then we can use only a vectorization factor
+ up to the max_vf we chose. So stick it into the safelen clause. */
+ if (max_vf)
+ {
+ tree c = find_omp_clause (gimple_omp_for_clauses (ctx->stmt),
+ OMP_CLAUSE_SAFELEN);
+ if (c == NULL_TREE
+ || compare_tree_int (OMP_CLAUSE_SAFELEN_EXPR (c),
+ max_vf) == 1)
+ {
+ c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_SAFELEN);
+ OMP_CLAUSE_SAFELEN_EXPR (c) = build_int_cst (integer_type_node,
+ max_vf);
+ OMP_CLAUSE_CHAIN (c) = gimple_omp_for_clauses (ctx->stmt);
+ gimple_omp_for_set_clauses (ctx->stmt, c);
+ }
+ }
}
static void
lower_lastprivate_clauses (tree clauses, tree predicate, gimple_seq *stmt_list,
- omp_context *ctx)
+ omp_context *ctx)
{
- tree x, c, label = NULL;
+ tree x, c, label = NULL, orig_clauses = clauses;
bool par_clauses = false;
+ tree simduid = NULL, lastlane = NULL;
- /* Early exit if there are no lastprivate clauses. */
- clauses = find_omp_clause (clauses, OMP_CLAUSE_LASTPRIVATE);
+ /* Early exit if there are no lastprivate or linear clauses. */
+ for (; clauses ; clauses = OMP_CLAUSE_CHAIN (clauses))
+ if (OMP_CLAUSE_CODE (clauses) == OMP_CLAUSE_LASTPRIVATE
+ || (OMP_CLAUSE_CODE (clauses) == OMP_CLAUSE_LINEAR
+ && !OMP_CLAUSE_LINEAR_NO_COPYOUT (clauses)))
+ break;
if (clauses == NULL)
{
/* If this was a workshare clause, see if it had been combined
gimple_seq_add_stmt (stmt_list, gimple_build_label (label_true));
}
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD)
+ {
+ simduid = find_omp_clause (orig_clauses, OMP_CLAUSE__SIMDUID_);
+ if (simduid)
+ simduid = OMP_CLAUSE__SIMDUID__DECL (simduid);
+ }
+
for (c = clauses; c ;)
{
tree var, new_var;
location_t clause_loc = OMP_CLAUSE_LOCATION (c);
- if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE)
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE
+ || (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR
+ && !OMP_CLAUSE_LINEAR_NO_COPYOUT (c)))
{
var = OMP_CLAUSE_DECL (c);
new_var = lookup_decl (var, ctx);
- if (OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c))
+ if (simduid && DECL_HAS_VALUE_EXPR_P (new_var))
+ {
+ tree val = DECL_VALUE_EXPR (new_var);
+ if (TREE_CODE (val) == ARRAY_REF
+ && VAR_P (TREE_OPERAND (val, 0))
+ && lookup_attribute ("omp simd array",
+ DECL_ATTRIBUTES (TREE_OPERAND (val,
+ 0))))
+ {
+ if (lastlane == NULL)
+ {
+ lastlane = create_tmp_var (unsigned_type_node, NULL);
+ gimple g
+ = gimple_build_call_internal (IFN_GOMP_SIMD_LAST_LANE,
+ 2, simduid,
+ TREE_OPERAND (val, 1));
+ gimple_call_set_lhs (g, lastlane);
+ gimple_seq_add_stmt (stmt_list, g);
+ }
+ new_var = build4 (ARRAY_REF, TREE_TYPE (val),
+ TREE_OPERAND (val, 0), lastlane,
+ NULL_TREE, NULL_TREE);
+ }
+ }
+
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE
+ && OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c))
{
- lower_omp (OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx);
+ lower_omp (&OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx);
gimple_seq_add_seq (stmt_list,
OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c));
+ OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c) = NULL;
}
- OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c) = NULL;
x = build_outer_var_ref (var, ctx);
if (is_reference (var))
tree x, c;
int count = 0;
+ /* SIMD reductions are handled in lower_rec_input_clauses. */
+ if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_KIND_SIMD)
+ return;
+
/* First see if there is exactly one reduction clause. Use OMP_ATOMIC
update in that case, otherwise use a lock. */
for (c = clauses; c && count < 2; c = OMP_CLAUSE_CHAIN (c))
{
if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c))
{
- /* Never use OMP_ATOMIC for array reductions. */
+ /* Never use OMP_ATOMIC for array reductions or UDRs. */
count = -1;
break;
}
{
tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c);
- if (is_reference (var))
+ if (is_reference (var)
+ && !useless_type_conversion_p (TREE_TYPE (placeholder),
+ TREE_TYPE (ref)))
ref = build_fold_addr_expr_loc (clause_loc, ref);
SET_DECL_VALUE_EXPR (placeholder, ref);
DECL_HAS_VALUE_EXPR_P (placeholder) = 1;
- lower_omp (OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx);
+ lower_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx);
gimple_seq_add_seq (&sub_seq, OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c));
OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL;
OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = NULL;
case OMP_CLAUSE_COPYIN:
case OMP_CLAUSE_LASTPRIVATE:
case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE__LOOPTEMP_:
break;
default:
continue;
case OMP_CLAUSE_PRIVATE:
case OMP_CLAUSE_FIRSTPRIVATE:
case OMP_CLAUSE_COPYIN:
+ case OMP_CLAUSE__LOOPTEMP_:
do_in = true;
break;
static void
expand_parallel_call (struct omp_region *region, basic_block bb,
- gimple entry_stmt, VEC(tree,gc) *ws_args)
+ gimple entry_stmt, vec<tree, va_gc> *ws_args)
{
- tree t, t1, t2, val, cond, c, clauses;
+ tree t, t1, t2, val, cond, c, clauses, flags;
gimple_stmt_iterator gsi;
gimple stmt;
enum built_in_function start_ix;
int start_ix2;
location_t clause_loc;
- VEC(tree,gc) *args;
+ vec<tree, va_gc> *args;
clauses = gimple_omp_parallel_clauses (entry_stmt);
- /* Determine what flavor of GOMP_parallel_start we will be
+ /* Determine what flavor of GOMP_parallel we will be
emitting. */
- start_ix = BUILT_IN_GOMP_PARALLEL_START;
+ start_ix = BUILT_IN_GOMP_PARALLEL;
if (is_combined_parallel (region))
{
switch (region->inner->type)
{
case GIMPLE_OMP_FOR:
gcc_assert (region->inner->sched_kind != OMP_CLAUSE_SCHEDULE_AUTO);
- start_ix2 = ((int)BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START
+ start_ix2 = ((int)BUILT_IN_GOMP_PARALLEL_LOOP_STATIC
+ (region->inner->sched_kind
== OMP_CLAUSE_SCHEDULE_RUNTIME
? 3 : region->inner->sched_kind));
start_ix = (enum built_in_function)start_ix2;
break;
case GIMPLE_OMP_SECTIONS:
- start_ix = BUILT_IN_GOMP_PARALLEL_SECTIONS_START;
+ start_ix = BUILT_IN_GOMP_PARALLEL_SECTIONS;
break;
default:
gcc_unreachable ();
and there is no conditional. */
cond = NULL_TREE;
val = build_int_cst (unsigned_type_node, 0);
+ flags = build_int_cst (unsigned_type_node, 0);
c = find_omp_clause (clauses, OMP_CLAUSE_IF);
if (c)
else
clause_loc = gimple_location (entry_stmt);
+ c = find_omp_clause (clauses, OMP_CLAUSE_PROC_BIND);
+ if (c)
+ flags = build_int_cst (unsigned_type_node, OMP_CLAUSE_PROC_BIND_KIND (c));
+
/* Ensure 'val' is of the correct type. */
val = fold_convert_loc (clause_loc, unsigned_type_node, val);
make_edge (cond_bb, then_bb, EDGE_TRUE_VALUE);
make_edge (cond_bb, else_bb, EDGE_FALSE_VALUE);
+ if (current_loops)
+ {
+ add_bb_to_loop (then_bb, cond_bb->loop_father);
+ add_bb_to_loop (else_bb, cond_bb->loop_father);
+ }
e_then = make_edge (then_bb, bb, EDGE_FALLTHRU);
e_else = make_edge (else_bb, bb, EDGE_FALLTHRU);
if (gimple_in_ssa_p (cfun))
{
gimple phi = create_phi_node (tmp_join, bb);
- SSA_NAME_DEF_STMT (tmp_join) = phi;
add_phi_arg (phi, tmp_then, e_then, UNKNOWN_LOCATION);
add_phi_arg (phi, tmp_else, e_else, UNKNOWN_LOCATION);
}
t1 = build_fold_addr_expr (t);
t2 = build_fold_addr_expr (gimple_omp_parallel_child_fn (entry_stmt));
- args = VEC_alloc (tree, gc, 3 + VEC_length (tree, ws_args));
- VEC_quick_push (tree, args, t2);
- VEC_quick_push (tree, args, t1);
- VEC_quick_push (tree, args, val);
- VEC_splice (tree, args, ws_args);
+ vec_alloc (args, 4 + vec_safe_length (ws_args));
+ args->quick_push (t2);
+ args->quick_push (t1);
+ args->quick_push (val);
+ if (ws_args)
+ args->splice (*ws_args);
+ args->quick_push (flags);
t = build_call_expr_loc_vec (UNKNOWN_LOCATION,
builtin_decl_explicit (start_ix), args);
force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
false, GSI_CONTINUE_LINKING);
-
- t = gimple_omp_parallel_data_arg (entry_stmt);
- if (t == NULL)
- t = null_pointer_node;
- else
- t = build_fold_addr_expr (t);
- t = build_call_expr_loc (gimple_location (entry_stmt),
- gimple_omp_parallel_child_fn (entry_stmt), 1, t);
- force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
-
- t = build_call_expr_loc (gimple_location (entry_stmt),
- builtin_decl_explicit (BUILT_IN_GOMP_PARALLEL_END),
- 0);
- force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
}
static void
expand_task_call (basic_block bb, gimple entry_stmt)
{
- tree t, t1, t2, t3, flags, cond, c, c2, clauses;
+ tree t, t1, t2, t3, flags, cond, c, c2, clauses, depend;
gimple_stmt_iterator gsi;
location_t loc = gimple_location (entry_stmt);
c = find_omp_clause (clauses, OMP_CLAUSE_UNTIED);
c2 = find_omp_clause (clauses, OMP_CLAUSE_MERGEABLE);
+ depend = find_omp_clause (clauses, OMP_CLAUSE_DEPEND);
flags = build_int_cst (unsigned_type_node,
- (c ? 1 : 0) + (c2 ? 4 : 0));
+ (c ? 1 : 0) + (c2 ? 4 : 0) + (depend ? 8 : 0));
c = find_omp_clause (clauses, OMP_CLAUSE_FINAL);
if (c)
build_int_cst (unsigned_type_node, 0));
flags = fold_build2_loc (loc, PLUS_EXPR, unsigned_type_node, flags, c);
}
+ if (depend)
+ depend = OMP_CLAUSE_DECL (depend);
+ else
+ depend = build_int_cst (ptr_type_node, 0);
gsi = gsi_last_bb (bb);
t = gimple_omp_task_data_arg (entry_stmt);
t3 = build_fold_addr_expr_loc (loc, t);
t = build_call_expr (builtin_decl_explicit (BUILT_IN_GOMP_TASK),
- 7, t1, t2, t3,
+ 8, t1, t2, t3,
gimple_omp_task_arg_size (entry_stmt),
- gimple_omp_task_arg_align (entry_stmt), cond, flags);
+ gimple_omp_task_arg_align (entry_stmt), cond, flags,
+ depend);
force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
false, GSI_CONTINUE_LINKING);
/* Chain all the DECLs in LIST by their TREE_CHAIN fields. */
static tree
-vec2chain (VEC(tree,gc) *v)
+vec2chain (vec<tree, va_gc> *v)
{
tree chain = NULL_TREE, t;
unsigned ix;
- FOR_EACH_VEC_ELT_REVERSE (tree, v, ix, t)
+ FOR_EACH_VEC_SAFE_ELT_REVERSE (v, ix, t)
{
DECL_CHAIN (t) = chain;
chain = t;
&& find_omp_clause (gimple_omp_task_clauses (entry_stmt),
OMP_CLAUSE_UNTIED) != NULL);
- FOR_EACH_BB (bb)
+ FOR_EACH_BB_FN (bb, cfun)
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
{
gimple call = gsi_stmt (gsi);
}
}
+/* Callback for expand_omp_build_assign. Return non-NULL if *tp needs to be
+ regimplified. */
+
+static tree
+expand_omp_regimplify_p (tree *tp, int *walk_subtrees, void *)
+{
+ tree t = *tp;
+
+ /* Any variable with DECL_VALUE_EXPR needs to be regimplified. */
+ if (TREE_CODE (t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (t))
+ return t;
+
+ if (TREE_CODE (t) == ADDR_EXPR)
+ recompute_tree_invariant_for_addr_expr (t);
+
+ *walk_subtrees = !TYPE_P (t) && !DECL_P (t);
+ return NULL_TREE;
+}
+
+/* Prepend TO = FROM assignment before *GSI_P. */
+
+static void
+expand_omp_build_assign (gimple_stmt_iterator *gsi_p, tree to, tree from)
+{
+ bool simple_p = DECL_P (to) && TREE_ADDRESSABLE (to);
+ from = force_gimple_operand_gsi (gsi_p, from, simple_p, NULL_TREE,
+ true, GSI_SAME_STMT);
+ gimple stmt = gimple_build_assign (to, from);
+ gsi_insert_before (gsi_p, stmt, GSI_SAME_STMT);
+ if (walk_tree (&from, expand_omp_regimplify_p, NULL, NULL)
+ || walk_tree (&to, expand_omp_regimplify_p, NULL, NULL))
+ {
+ gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
+ gimple_regimplify_operands (stmt, &gsi);
+ }
+}
+
/* Expand the OpenMP parallel or task directive starting at REGION. */
static void
basic_block entry_bb, exit_bb, new_bb;
struct function *child_cfun;
tree child_fn, block, t;
- tree save_current;
gimple_stmt_iterator gsi;
gimple entry_stmt, stmt;
edge e;
- VEC(tree,gc) *ws_args;
+ vec<tree, va_gc> *ws_args;
entry_stmt = last_stmt (region->entry);
child_fn = gimple_omp_taskreg_child_fn (entry_stmt);
child_cfun = DECL_STRUCT_FUNCTION (child_fn);
- /* If this function has been already instrumented, make sure
- the child function isn't instrumented again. */
- child_cfun->after_tree_profile = cfun->after_tree_profile;
entry_bb = region->entry;
exit_bb = region->exit;
/* If we are in ssa form, we must load the value from the default
definition of the argument. That should not be defined now,
since the argument is not used uninitialized. */
- gcc_assert (gimple_default_def (cfun, arg) == NULL);
+ gcc_assert (ssa_default_def (cfun, arg) == NULL);
narg = make_ssa_name (arg, gimple_build_nop ());
- set_default_def (arg, narg);
+ set_ssa_default_def (cfun, arg, narg);
/* ?? Is setting the subcode really necessary ?? */
gimple_omp_set_subcode (parcopy_stmt, TREE_CODE (narg));
gimple_assign_set_rhs1 (parcopy_stmt, narg);
&& !DECL_EXTERNAL (t))
varpool_finalize_decl (t);
DECL_SAVED_TREE (child_fn) = NULL;
- gimple_set_body (child_fn, bb_seq (single_succ (entry_bb)));
+ /* We'll create a CFG for child_fn, so no gimple body is needed. */
+ gimple_set_body (child_fn, NULL);
TREE_USED (block) = 1;
/* Reset DECL_CONTEXT on function arguments. */
if (gimple_in_ssa_p (cfun))
{
- push_cfun (child_cfun);
init_tree_ssa (child_cfun);
- init_ssa_operands ();
- cfun->gimple_df->in_ssa_p = true;
- pop_cfun ();
+ init_ssa_operands (child_cfun);
+ child_cfun->gimple_df->in_ssa_p = true;
block = NULL_TREE;
}
else
new_bb = move_sese_region_to_fn (child_cfun, entry_bb, exit_bb, block);
if (exit_bb)
single_succ_edge (new_bb)->flags = EDGE_FALLTHRU;
+ /* When the OMP expansion process cannot guarantee an up-to-date
+ loop tree arrange for the child function to fixup loops. */
+ if (loops_state_satisfies_p (LOOPS_NEED_FIXUP))
+ child_cfun->x_current_loops->state |= LOOPS_NEED_FIXUP;
/* Remove non-local VAR_DECLs from child_cfun->local_decls list. */
- num = VEC_length (tree, child_cfun->local_decls);
+ num = vec_safe_length (child_cfun->local_decls);
for (srcidx = 0, dstidx = 0; srcidx < num; srcidx++)
{
- t = VEC_index (tree, child_cfun->local_decls, srcidx);
+ t = (*child_cfun->local_decls)[srcidx];
if (DECL_CONTEXT (t) == cfun->decl)
continue;
if (srcidx != dstidx)
- VEC_replace (tree, child_cfun->local_decls, dstidx, t);
+ (*child_cfun->local_decls)[dstidx] = t;
dstidx++;
}
if (dstidx != num)
- VEC_truncate (tree, child_cfun->local_decls, dstidx);
+ vec_safe_truncate (child_cfun->local_decls, dstidx);
/* Inform the callgraph about the new function. */
- DECL_STRUCT_FUNCTION (child_fn)->curr_properties
- = cfun->curr_properties;
+ DECL_STRUCT_FUNCTION (child_fn)->curr_properties = cfun->curr_properties;
cgraph_add_new_function (child_fn, true);
/* Fix the callgraph edges for child_cfun. Those for cfun will be
fixed in a following pass. */
push_cfun (child_cfun);
- save_current = current_function_decl;
- current_function_decl = child_fn;
if (optimize)
optimize_omp_library_calls (entry_stmt);
rebuild_cgraph_edges ();
basic_block bb;
bool changed = false;
- FOR_EACH_BB (bb)
+ FOR_EACH_BB_FN (bb, cfun)
changed |= gimple_purge_dead_eh_edges (bb);
if (changed)
cleanup_tree_cfg ();
}
if (gimple_in_ssa_p (cfun))
update_ssa (TODO_update_ssa);
- current_function_decl = save_current;
pop_cfun ();
}
expand_parallel_call (region, new_bb, entry_stmt, ws_args);
else
expand_task_call (new_bb, entry_stmt);
- update_ssa (TODO_update_ssa_only_virtuals);
+ if (gimple_in_ssa_p (cfun))
+ update_ssa (TODO_update_ssa_only_virtuals);
}
-/* A subroutine of expand_omp_for. Generate code for a parallel
- loop with any schedule. Given parameters:
-
- for (V = N1; V cond N2; V += STEP) BODY;
-
- where COND is "<" or ">", we generate pseudocode
-
- more = GOMP_loop_foo_start (N1, N2, STEP, CHUNK, &istart0, &iend0);
- if (more) goto L0; else goto L3;
- L0:
- V = istart0;
- iend = iend0;
- L1:
- BODY;
- V += STEP;
- if (V cond iend) goto L1; else goto L2;
- L2:
- if (GOMP_loop_foo_next (&istart0, &iend0)) goto L0; else goto L3;
- L3:
-
- If this is a combined omp parallel loop, instead of the call to
- GOMP_loop_foo_start, we call GOMP_loop_foo_next.
-
- For collapsed loops, given parameters:
- collapse(3)
- for (V1 = N11; V1 cond1 N12; V1 += STEP1)
- for (V2 = N21; V2 cond2 N22; V2 += STEP2)
- for (V3 = N31; V3 cond3 N32; V3 += STEP3)
- BODY;
-
- we generate pseudocode
-
+/* Helper function for expand_omp_{for_*,simd}. If this is the outermost
+ of the combined collapse > 1 loop constructs, generate code like:
+ if (__builtin_expect (N32 cond3 N31, 0)) goto ZERO_ITER_BB;
if (cond3 is <)
adj = STEP3 - 1;
else
adj = STEP3 + 1;
count3 = (adj + N32 - N31) / STEP3;
+ if (__builtin_expect (N22 cond2 N21, 0)) goto ZERO_ITER_BB;
if (cond2 is <)
adj = STEP2 - 1;
else
adj = STEP2 + 1;
count2 = (adj + N22 - N21) / STEP2;
+ if (__builtin_expect (N12 cond1 N11, 0)) goto ZERO_ITER_BB;
if (cond1 is <)
adj = STEP1 - 1;
else
adj = STEP1 + 1;
count1 = (adj + N12 - N11) / STEP1;
count = count1 * count2 * count3;
- more = GOMP_loop_foo_start (0, count, 1, CHUNK, &istart0, &iend0);
- if (more) goto L0; else goto L3;
- L0:
- V = istart0;
- T = V;
- V3 = N31 + (T % count3) * STEP3;
- T = T / count3;
- V2 = N21 + (T % count2) * STEP2;
- T = T / count2;
- V1 = N11 + T * STEP1;
- iend = iend0;
- L1:
- BODY;
- V += 1;
- if (V < iend) goto L10; else goto L2;
- L10:
- V3 += STEP3;
- if (V3 cond3 N32) goto L1; else goto L11;
- L11:
- V3 = N31;
- V2 += STEP2;
- if (V2 cond2 N22) goto L1; else goto L12;
- L12:
- V2 = N21;
- V1 += STEP1;
- goto L1;
- L2:
- if (GOMP_loop_foo_next (&istart0, &iend0)) goto L0; else goto L3;
- L3:
-
- */
+ Furthermore, if ZERO_ITER_BB is NULL, create a BB which does:
+ count = 0;
+ and set ZERO_ITER_BB to that bb. If this isn't the outermost
+ of the combined loop constructs, just initialize COUNTS array
+ from the _looptemp_ clauses. */
+
+/* NOTE: It *could* be better to moosh all of the BBs together,
+ creating one larger BB with all the computation and the unexpected
+ jump at the end. I.e.
+
+ bool zero3, zero2, zero1, zero;
+
+ zero3 = N32 c3 N31;
+ count3 = (N32 - N31) /[cl] STEP3;
+ zero2 = N22 c2 N21;
+ count2 = (N22 - N21) /[cl] STEP2;
+ zero1 = N12 c1 N11;
+ count1 = (N12 - N11) /[cl] STEP1;
+ zero = zero3 || zero2 || zero1;
+ count = count1 * count2 * count3;
+ if (__builtin_expect(zero, false)) goto zero_iter_bb;
+
+ After all, we expect the zero=false, and thus we expect to have to
+ evaluate all of the comparison expressions, so short-circuiting
+ oughtn't be a win. Since the condition isn't protecting a
+ denominator, we're not concerned about divide-by-zero, so we can
+ fully evaluate count even if a numerator turned out to be wrong.
+
+ It seems like putting this all together would create much better
+ scheduling opportunities, and less pressure on the chip's branch
+ predictor. */
static void
-expand_omp_for_generic (struct omp_region *region,
- struct omp_for_data *fd,
- enum built_in_function start_fn,
- enum built_in_function next_fn)
+expand_omp_for_init_counts (struct omp_for_data *fd, gimple_stmt_iterator *gsi,
+ basic_block &entry_bb, tree *counts,
+ basic_block &zero_iter_bb, int &first_zero_iter,
+ basic_block &l2_dom_bb)
{
- tree type, istart0, iend0, iend;
- tree t, vmain, vback, bias = NULL_TREE;
- basic_block entry_bb, cont_bb, exit_bb, l0_bb, l1_bb, collapse_bb;
- basic_block l2_bb = NULL, l3_bb = NULL;
- gimple_stmt_iterator gsi;
+ tree t, type = TREE_TYPE (fd->loop.v);
gimple stmt;
- bool in_combined_parallel = is_combined_parallel (region);
- bool broken_loop = region->cont == NULL;
edge e, ne;
- tree *counts = NULL;
int i;
- gcc_assert (!broken_loop || !in_combined_parallel);
- gcc_assert (fd->iter_type == long_integer_type_node
- || !in_combined_parallel);
+ /* Collapsed loops need work for expansion into SSA form. */
+ gcc_assert (!gimple_in_ssa_p (cfun));
+
+ if (gimple_omp_for_combined_into_p (fd->for_stmt)
+ && TREE_CODE (fd->loop.n2) != INTEGER_CST)
+ {
+ /* First two _looptemp_ clauses are for istart/iend, counts[0]
+ isn't supposed to be handled, as the inner loop doesn't
+ use it. */
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ for (i = 0; i < fd->collapse; i++)
+ {
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ if (i)
+ counts[i] = OMP_CLAUSE_DECL (innerc);
+ else
+ counts[0] = NULL_TREE;
+ }
+ return;
+ }
+
+ for (i = 0; i < fd->collapse; i++)
+ {
+ tree itype = TREE_TYPE (fd->loops[i].v);
+
+ if (SSA_VAR_P (fd->loop.n2)
+ && ((t = fold_binary (fd->loops[i].cond_code, boolean_type_node,
+ fold_convert (itype, fd->loops[i].n1),
+ fold_convert (itype, fd->loops[i].n2)))
+ == NULL_TREE || !integer_onep (t)))
+ {
+ tree n1, n2;
+ n1 = fold_convert (itype, unshare_expr (fd->loops[i].n1));
+ n1 = force_gimple_operand_gsi (gsi, n1, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ n2 = fold_convert (itype, unshare_expr (fd->loops[i].n2));
+ n2 = force_gimple_operand_gsi (gsi, n2, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ stmt = gimple_build_cond (fd->loops[i].cond_code, n1, n2,
+ NULL_TREE, NULL_TREE);
+ gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
+ if (walk_tree (gimple_cond_lhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL)
+ || walk_tree (gimple_cond_rhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL))
+ {
+ *gsi = gsi_for_stmt (stmt);
+ gimple_regimplify_operands (stmt, gsi);
+ }
+ e = split_block (entry_bb, stmt);
+ if (zero_iter_bb == NULL)
+ {
+ first_zero_iter = i;
+ zero_iter_bb = create_empty_bb (entry_bb);
+ if (current_loops)
+ add_bb_to_loop (zero_iter_bb, entry_bb->loop_father);
+ *gsi = gsi_after_labels (zero_iter_bb);
+ stmt = gimple_build_assign (fd->loop.n2,
+ build_zero_cst (type));
+ gsi_insert_before (gsi, stmt, GSI_SAME_STMT);
+ set_immediate_dominator (CDI_DOMINATORS, zero_iter_bb,
+ entry_bb);
+ }
+ ne = make_edge (entry_bb, zero_iter_bb, EDGE_FALSE_VALUE);
+ ne->probability = REG_BR_PROB_BASE / 2000 - 1;
+ e->flags = EDGE_TRUE_VALUE;
+ e->probability = REG_BR_PROB_BASE - ne->probability;
+ if (l2_dom_bb == NULL)
+ l2_dom_bb = entry_bb;
+ entry_bb = e->dest;
+ *gsi = gsi_last_bb (entry_bb);
+ }
+
+ if (POINTER_TYPE_P (itype))
+ itype = signed_type_for (itype);
+ t = build_int_cst (itype, (fd->loops[i].cond_code == LT_EXPR
+ ? -1 : 1));
+ t = fold_build2 (PLUS_EXPR, itype,
+ fold_convert (itype, fd->loops[i].step), t);
+ t = fold_build2 (PLUS_EXPR, itype, t,
+ fold_convert (itype, fd->loops[i].n2));
+ t = fold_build2 (MINUS_EXPR, itype, t,
+ fold_convert (itype, fd->loops[i].n1));
+ /* ?? We could probably use CEIL_DIV_EXPR instead of
+ TRUNC_DIV_EXPR and adjusting by hand. Unless we can't
+ generate the same code in the end because generically we
+ don't know that the values involved must be negative for
+ GT?? */
+ if (TYPE_UNSIGNED (itype) && fd->loops[i].cond_code == GT_EXPR)
+ t = fold_build2 (TRUNC_DIV_EXPR, itype,
+ fold_build1 (NEGATE_EXPR, itype, t),
+ fold_build1 (NEGATE_EXPR, itype,
+ fold_convert (itype,
+ fd->loops[i].step)));
+ else
+ t = fold_build2 (TRUNC_DIV_EXPR, itype, t,
+ fold_convert (itype, fd->loops[i].step));
+ t = fold_convert (type, t);
+ if (TREE_CODE (t) == INTEGER_CST)
+ counts[i] = t;
+ else
+ {
+ counts[i] = create_tmp_reg (type, ".count");
+ expand_omp_build_assign (gsi, counts[i], t);
+ }
+ if (SSA_VAR_P (fd->loop.n2))
+ {
+ if (i == 0)
+ t = counts[0];
+ else
+ t = fold_build2 (MULT_EXPR, type, fd->loop.n2, counts[i]);
+ expand_omp_build_assign (gsi, fd->loop.n2, t);
+ }
+ }
+}
+
+
+/* Helper function for expand_omp_{for_*,simd}. Generate code like:
+ T = V;
+ V3 = N31 + (T % count3) * STEP3;
+ T = T / count3;
+ V2 = N21 + (T % count2) * STEP2;
+ T = T / count2;
+ V1 = N11 + T * STEP1;
+ if this loop doesn't have an inner loop construct combined with it.
+ If it does have an inner loop construct combined with it and the
+ iteration count isn't known constant, store values from counts array
+ into its _looptemp_ temporaries instead. */
+
+static void
+expand_omp_for_init_vars (struct omp_for_data *fd, gimple_stmt_iterator *gsi,
+ tree *counts, gimple inner_stmt, tree startvar)
+{
+ int i;
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ /* If fd->loop.n2 is constant, then no propagation of the counts
+ is needed, they are constant. */
+ if (TREE_CODE (fd->loop.n2) == INTEGER_CST)
+ return;
+
+ tree clauses = gimple_code (inner_stmt) == GIMPLE_OMP_PARALLEL
+ ? gimple_omp_parallel_clauses (inner_stmt)
+ : gimple_omp_for_clauses (inner_stmt);
+ /* First two _looptemp_ clauses are for istart/iend, counts[0]
+ isn't supposed to be handled, as the inner loop doesn't
+ use it. */
+ tree innerc = find_omp_clause (clauses, OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ for (i = 0; i < fd->collapse; i++)
+ {
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ if (i)
+ {
+ tree tem = OMP_CLAUSE_DECL (innerc);
+ tree t = fold_convert (TREE_TYPE (tem), counts[i]);
+ t = force_gimple_operand_gsi (gsi, t, false, NULL_TREE,
+ false, GSI_CONTINUE_LINKING);
+ gimple stmt = gimple_build_assign (tem, t);
+ gsi_insert_after (gsi, stmt, GSI_CONTINUE_LINKING);
+ }
+ }
+ return;
+ }
+
+ tree type = TREE_TYPE (fd->loop.v);
+ tree tem = create_tmp_reg (type, ".tem");
+ gimple stmt = gimple_build_assign (tem, startvar);
+ gsi_insert_after (gsi, stmt, GSI_CONTINUE_LINKING);
+
+ for (i = fd->collapse - 1; i >= 0; i--)
+ {
+ tree vtype = TREE_TYPE (fd->loops[i].v), itype, t;
+ itype = vtype;
+ if (POINTER_TYPE_P (vtype))
+ itype = signed_type_for (vtype);
+ if (i != 0)
+ t = fold_build2 (TRUNC_MOD_EXPR, type, tem, counts[i]);
+ else
+ t = tem;
+ t = fold_convert (itype, t);
+ t = fold_build2 (MULT_EXPR, itype, t,
+ fold_convert (itype, fd->loops[i].step));
+ if (POINTER_TYPE_P (vtype))
+ t = fold_build_pointer_plus (fd->loops[i].n1, t);
+ else
+ t = fold_build2 (PLUS_EXPR, itype, fd->loops[i].n1, t);
+ t = force_gimple_operand_gsi (gsi, t,
+ DECL_P (fd->loops[i].v)
+ && TREE_ADDRESSABLE (fd->loops[i].v),
+ NULL_TREE, false,
+ GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (fd->loops[i].v, t);
+ gsi_insert_after (gsi, stmt, GSI_CONTINUE_LINKING);
+ if (i != 0)
+ {
+ t = fold_build2 (TRUNC_DIV_EXPR, type, tem, counts[i]);
+ t = force_gimple_operand_gsi (gsi, t, false, NULL_TREE,
+ false, GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (tem, t);
+ gsi_insert_after (gsi, stmt, GSI_CONTINUE_LINKING);
+ }
+ }
+}
+
+
+/* Helper function for expand_omp_for_*. Generate code like:
+ L10:
+ V3 += STEP3;
+ if (V3 cond3 N32) goto BODY_BB; else goto L11;
+ L11:
+ V3 = N31;
+ V2 += STEP2;
+ if (V2 cond2 N22) goto BODY_BB; else goto L12;
+ L12:
+ V2 = N21;
+ V1 += STEP1;
+ goto BODY_BB; */
+
+static basic_block
+extract_omp_for_update_vars (struct omp_for_data *fd, basic_block cont_bb,
+ basic_block body_bb)
+{
+ basic_block last_bb, bb, collapse_bb = NULL;
+ int i;
+ gimple_stmt_iterator gsi;
+ edge e;
+ tree t;
+ gimple stmt;
+
+ last_bb = cont_bb;
+ for (i = fd->collapse - 1; i >= 0; i--)
+ {
+ tree vtype = TREE_TYPE (fd->loops[i].v);
+
+ bb = create_empty_bb (last_bb);
+ if (current_loops)
+ add_bb_to_loop (bb, last_bb->loop_father);
+ gsi = gsi_start_bb (bb);
+
+ if (i < fd->collapse - 1)
+ {
+ e = make_edge (last_bb, bb, EDGE_FALSE_VALUE);
+ e->probability = REG_BR_PROB_BASE / 8;
+
+ t = fd->loops[i + 1].n1;
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (fd->loops[i + 1].v)
+ && TREE_ADDRESSABLE (fd->loops[i
+ + 1].v),
+ NULL_TREE, false,
+ GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (fd->loops[i + 1].v, t);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+ }
+ else
+ collapse_bb = bb;
+
+ set_immediate_dominator (CDI_DOMINATORS, bb, last_bb);
+
+ if (POINTER_TYPE_P (vtype))
+ t = fold_build_pointer_plus (fd->loops[i].v, fd->loops[i].step);
+ else
+ t = fold_build2 (PLUS_EXPR, vtype, fd->loops[i].v, fd->loops[i].step);
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (fd->loops[i].v)
+ && TREE_ADDRESSABLE (fd->loops[i].v),
+ NULL_TREE, false, GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (fd->loops[i].v, t);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+
+ if (i > 0)
+ {
+ t = fd->loops[i].n2;
+ t = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
+ false, GSI_CONTINUE_LINKING);
+ tree v = fd->loops[i].v;
+ if (DECL_P (v) && TREE_ADDRESSABLE (v))
+ v = force_gimple_operand_gsi (&gsi, v, true, NULL_TREE,
+ false, GSI_CONTINUE_LINKING);
+ t = fold_build2 (fd->loops[i].cond_code, boolean_type_node, v, t);
+ stmt = gimple_build_cond_empty (t);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+ e = make_edge (bb, body_bb, EDGE_TRUE_VALUE);
+ e->probability = REG_BR_PROB_BASE * 7 / 8;
+ }
+ else
+ make_edge (bb, body_bb, EDGE_FALLTHRU);
+ last_bb = bb;
+ }
+
+ return collapse_bb;
+}
+
+
+/* A subroutine of expand_omp_for. Generate code for a parallel
+ loop with any schedule. Given parameters:
+
+ for (V = N1; V cond N2; V += STEP) BODY;
+
+ where COND is "<" or ">", we generate pseudocode
+
+ more = GOMP_loop_foo_start (N1, N2, STEP, CHUNK, &istart0, &iend0);
+ if (more) goto L0; else goto L3;
+ L0:
+ V = istart0;
+ iend = iend0;
+ L1:
+ BODY;
+ V += STEP;
+ if (V cond iend) goto L1; else goto L2;
+ L2:
+ if (GOMP_loop_foo_next (&istart0, &iend0)) goto L0; else goto L3;
+ L3:
+
+ If this is a combined omp parallel loop, instead of the call to
+ GOMP_loop_foo_start, we call GOMP_loop_foo_next.
+ If this is gimple_omp_for_combined_p loop, then instead of assigning
+ V and iend in L0 we assign the first two _looptemp_ clause decls of the
+ inner GIMPLE_OMP_FOR and V += STEP; and
+ if (V cond iend) goto L1; else goto L2; are removed.
+
+ For collapsed loops, given parameters:
+ collapse(3)
+ for (V1 = N11; V1 cond1 N12; V1 += STEP1)
+ for (V2 = N21; V2 cond2 N22; V2 += STEP2)
+ for (V3 = N31; V3 cond3 N32; V3 += STEP3)
+ BODY;
+
+ we generate pseudocode
+
+ if (__builtin_expect (N32 cond3 N31, 0)) goto Z0;
+ if (cond3 is <)
+ adj = STEP3 - 1;
+ else
+ adj = STEP3 + 1;
+ count3 = (adj + N32 - N31) / STEP3;
+ if (__builtin_expect (N22 cond2 N21, 0)) goto Z0;
+ if (cond2 is <)
+ adj = STEP2 - 1;
+ else
+ adj = STEP2 + 1;
+ count2 = (adj + N22 - N21) / STEP2;
+ if (__builtin_expect (N12 cond1 N11, 0)) goto Z0;
+ if (cond1 is <)
+ adj = STEP1 - 1;
+ else
+ adj = STEP1 + 1;
+ count1 = (adj + N12 - N11) / STEP1;
+ count = count1 * count2 * count3;
+ goto Z1;
+ Z0:
+ count = 0;
+ Z1:
+ more = GOMP_loop_foo_start (0, count, 1, CHUNK, &istart0, &iend0);
+ if (more) goto L0; else goto L3;
+ L0:
+ V = istart0;
+ T = V;
+ V3 = N31 + (T % count3) * STEP3;
+ T = T / count3;
+ V2 = N21 + (T % count2) * STEP2;
+ T = T / count2;
+ V1 = N11 + T * STEP1;
+ iend = iend0;
+ L1:
+ BODY;
+ V += 1;
+ if (V < iend) goto L10; else goto L2;
+ L10:
+ V3 += STEP3;
+ if (V3 cond3 N32) goto L1; else goto L11;
+ L11:
+ V3 = N31;
+ V2 += STEP2;
+ if (V2 cond2 N22) goto L1; else goto L12;
+ L12:
+ V2 = N21;
+ V1 += STEP1;
+ goto L1;
+ L2:
+ if (GOMP_loop_foo_next (&istart0, &iend0)) goto L0; else goto L3;
+ L3:
+
+ */
+
+static void
+expand_omp_for_generic (struct omp_region *region,
+ struct omp_for_data *fd,
+ enum built_in_function start_fn,
+ enum built_in_function next_fn,
+ gimple inner_stmt)
+{
+ tree type, istart0, iend0, iend;
+ tree t, vmain, vback, bias = NULL_TREE;
+ basic_block entry_bb, cont_bb, exit_bb, l0_bb, l1_bb, collapse_bb;
+ basic_block l2_bb = NULL, l3_bb = NULL;
+ gimple_stmt_iterator gsi;
+ gimple stmt;
+ bool in_combined_parallel = is_combined_parallel (region);
+ bool broken_loop = region->cont == NULL;
+ edge e, ne;
+ tree *counts = NULL;
+ int i;
+
+ gcc_assert (!broken_loop || !in_combined_parallel);
+ gcc_assert (fd->iter_type == long_integer_type_node
+ || !in_combined_parallel);
type = TREE_TYPE (fd->loop.v);
istart0 = create_tmp_var (fd->iter_type, ".istart0");
iend0 = create_tmp_var (fd->iter_type, ".iend0");
TREE_ADDRESSABLE (istart0) = 1;
TREE_ADDRESSABLE (iend0) = 1;
- if (gimple_in_ssa_p (cfun))
- {
- add_referenced_var (istart0);
- add_referenced_var (iend0);
- }
/* See if we need to bias by LLONG_MIN. */
if (fd->iter_type == long_long_unsigned_type_node
gcc_assert (gimple_code (gsi_stmt (gsi)) == GIMPLE_OMP_FOR);
if (fd->collapse > 1)
{
- /* collapsed loops need work for expansion in SSA form. */
- gcc_assert (!gimple_in_ssa_p (cfun));
- counts = (tree *) alloca (fd->collapse * sizeof (tree));
- for (i = 0; i < fd->collapse; i++)
+ int first_zero_iter = -1;
+ basic_block zero_iter_bb = NULL, l2_dom_bb = NULL;
+
+ counts = XALLOCAVEC (tree, fd->collapse);
+ expand_omp_for_init_counts (fd, &gsi, entry_bb, counts,
+ zero_iter_bb, first_zero_iter,
+ l2_dom_bb);
+
+ if (zero_iter_bb)
{
- tree itype = TREE_TYPE (fd->loops[i].v);
-
- if (POINTER_TYPE_P (itype))
- itype = lang_hooks.types.type_for_size (TYPE_PRECISION (itype), 0);
- t = build_int_cst (itype, (fd->loops[i].cond_code == LT_EXPR
- ? -1 : 1));
- t = fold_build2 (PLUS_EXPR, itype,
- fold_convert (itype, fd->loops[i].step), t);
- t = fold_build2 (PLUS_EXPR, itype, t,
- fold_convert (itype, fd->loops[i].n2));
- t = fold_build2 (MINUS_EXPR, itype, t,
- fold_convert (itype, fd->loops[i].n1));
- if (TYPE_UNSIGNED (itype) && fd->loops[i].cond_code == GT_EXPR)
- t = fold_build2 (TRUNC_DIV_EXPR, itype,
- fold_build1 (NEGATE_EXPR, itype, t),
- fold_build1 (NEGATE_EXPR, itype,
- fold_convert (itype,
- fd->loops[i].step)));
- else
- t = fold_build2 (TRUNC_DIV_EXPR, itype, t,
- fold_convert (itype, fd->loops[i].step));
- t = fold_convert (type, t);
- if (TREE_CODE (t) == INTEGER_CST)
- counts[i] = t;
- else
- {
- counts[i] = create_tmp_var (type, ".count");
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- true, GSI_SAME_STMT);
- stmt = gimple_build_assign (counts[i], t);
- gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
- }
- if (SSA_VAR_P (fd->loop.n2))
- {
- if (i == 0)
- t = counts[0];
- else
- {
- t = fold_build2 (MULT_EXPR, type, fd->loop.n2, counts[i]);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- true, GSI_SAME_STMT);
- }
- stmt = gimple_build_assign (fd->loop.n2, t);
- gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
- }
+ /* Some counts[i] vars might be uninitialized if
+ some loop has zero iterations. But the body shouldn't
+ be executed in that case, so just avoid uninit warnings. */
+ for (i = first_zero_iter; i < fd->collapse; i++)
+ if (SSA_VAR_P (counts[i]))
+ TREE_NO_WARNING (counts[i]) = 1;
+ gsi_prev (&gsi);
+ e = split_block (entry_bb, gsi_stmt (gsi));
+ entry_bb = e->dest;
+ make_edge (zero_iter_bb, entry_bb, EDGE_FALLTHRU);
+ gsi = gsi_last_bb (entry_bb);
+ set_immediate_dominator (CDI_DOMINATORS, entry_bb,
+ get_immediate_dominator (CDI_DOMINATORS,
+ zero_iter_bb));
}
}
if (in_combined_parallel)
t4 = build_fold_addr_expr (iend0);
t3 = build_fold_addr_expr (istart0);
t2 = fold_convert (fd->iter_type, fd->loop.step);
- if (POINTER_TYPE_P (type)
- && TYPE_PRECISION (type) != TYPE_PRECISION (fd->iter_type))
+ t1 = fd->loop.n2;
+ t0 = fd->loop.n1;
+ if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ {
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ t0 = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ t1 = OMP_CLAUSE_DECL (innerc);
+ }
+ if (POINTER_TYPE_P (TREE_TYPE (t0))
+ && TYPE_PRECISION (TREE_TYPE (t0))
+ != TYPE_PRECISION (fd->iter_type))
{
/* Avoid casting pointers to integer of a different size. */
- tree itype
- = lang_hooks.types.type_for_size (TYPE_PRECISION (type), 0);
- t1 = fold_convert (fd->iter_type, fold_convert (itype, fd->loop.n2));
- t0 = fold_convert (fd->iter_type, fold_convert (itype, fd->loop.n1));
+ tree itype = signed_type_for (type);
+ t1 = fold_convert (fd->iter_type, fold_convert (itype, t1));
+ t0 = fold_convert (fd->iter_type, fold_convert (itype, t0));
}
else
{
- t1 = fold_convert (fd->iter_type, fd->loop.n2);
- t0 = fold_convert (fd->iter_type, fd->loop.n1);
+ t1 = fold_convert (fd->iter_type, t1);
+ t0 = fold_convert (fd->iter_type, t0);
}
if (bias)
{
gsi_remove (&gsi, true);
/* Iteration setup for sequential loop goes in L0_BB. */
+ tree startvar = fd->loop.v;
+ tree endvar = NULL_TREE;
+
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ gcc_assert (gimple_code (inner_stmt) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (inner_stmt)
+ == GF_OMP_FOR_KIND_SIMD);
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (inner_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ startvar = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ endvar = OMP_CLAUSE_DECL (innerc);
+ }
+
gsi = gsi_start_bb (l0_bb);
t = istart0;
if (bias)
t = fold_build2 (MINUS_EXPR, fd->iter_type, t, bias);
- if (POINTER_TYPE_P (type))
- t = fold_convert (lang_hooks.types.type_for_size (TYPE_PRECISION (type),
- 0), t);
- t = fold_convert (type, t);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loop.v, t);
+ if (POINTER_TYPE_P (TREE_TYPE (startvar)))
+ t = fold_convert (signed_type_for (TREE_TYPE (startvar)), t);
+ t = fold_convert (TREE_TYPE (startvar), t);
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (startvar)
+ && TREE_ADDRESSABLE (startvar),
+ NULL_TREE, false, GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (startvar, t);
gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
t = iend0;
if (bias)
t = fold_build2 (MINUS_EXPR, fd->iter_type, t, bias);
- if (POINTER_TYPE_P (type))
- t = fold_convert (lang_hooks.types.type_for_size (TYPE_PRECISION (type),
- 0), t);
- t = fold_convert (type, t);
+ if (POINTER_TYPE_P (TREE_TYPE (startvar)))
+ t = fold_convert (signed_type_for (TREE_TYPE (startvar)), t);
+ t = fold_convert (TREE_TYPE (startvar), t);
iend = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
false, GSI_CONTINUE_LINKING);
- if (fd->collapse > 1)
+ if (endvar)
{
- tree tem = create_tmp_var (type, ".tem");
-
- stmt = gimple_build_assign (tem, fd->loop.v);
+ stmt = gimple_build_assign (endvar, iend);
gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
- for (i = fd->collapse - 1; i >= 0; i--)
- {
- tree vtype = TREE_TYPE (fd->loops[i].v), itype;
- itype = vtype;
- if (POINTER_TYPE_P (vtype))
- itype = lang_hooks.types.type_for_size (TYPE_PRECISION (vtype), 0);
- t = fold_build2 (TRUNC_MOD_EXPR, type, tem, counts[i]);
- t = fold_convert (itype, t);
- t = fold_build2 (MULT_EXPR, itype, t,
- fold_convert (itype, fd->loops[i].step));
- if (POINTER_TYPE_P (vtype))
- t = fold_build_pointer_plus (fd->loops[i].n1, t);
- else
- t = fold_build2 (PLUS_EXPR, itype, fd->loops[i].n1, t);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loops[i].v, t);
- gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
- if (i != 0)
- {
- t = fold_build2 (TRUNC_DIV_EXPR, type, tem, counts[i]);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (tem, t);
- gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
- }
- }
}
+ if (fd->collapse > 1)
+ expand_omp_for_init_vars (fd, &gsi, counts, inner_stmt, startvar);
if (!broken_loop)
{
vmain = gimple_omp_continue_control_use (stmt);
vback = gimple_omp_continue_control_def (stmt);
- if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (vmain, fd->loop.step);
- else
- t = fold_build2 (PLUS_EXPR, type, vmain, fd->loop.step);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- true, GSI_SAME_STMT);
- stmt = gimple_build_assign (vback, t);
- gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
-
- t = build2 (fd->loop.cond_code, boolean_type_node, vback, iend);
- stmt = gimple_build_cond_empty (t);
- gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+ if (!gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ if (POINTER_TYPE_P (type))
+ t = fold_build_pointer_plus (vmain, fd->loop.step);
+ else
+ t = fold_build2 (PLUS_EXPR, type, vmain, fd->loop.step);
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (vback)
+ && TREE_ADDRESSABLE (vback),
+ NULL_TREE, true, GSI_SAME_STMT);
+ stmt = gimple_build_assign (vback, t);
+ gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+
+ t = build2 (fd->loop.cond_code, boolean_type_node,
+ DECL_P (vback) && TREE_ADDRESSABLE (vback) ? t : vback,
+ iend);
+ stmt = gimple_build_cond_empty (t);
+ gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+ }
/* Remove GIMPLE_OMP_CONTINUE. */
gsi_remove (&gsi, true);
- if (fd->collapse > 1)
- {
- basic_block last_bb, bb;
-
- last_bb = cont_bb;
- for (i = fd->collapse - 1; i >= 0; i--)
- {
- tree vtype = TREE_TYPE (fd->loops[i].v);
+ if (fd->collapse > 1 && !gimple_omp_for_combined_p (fd->for_stmt))
+ collapse_bb = extract_omp_for_update_vars (fd, cont_bb, l1_bb);
- bb = create_empty_bb (last_bb);
- gsi = gsi_start_bb (bb);
-
- if (i < fd->collapse - 1)
- {
- e = make_edge (last_bb, bb, EDGE_FALSE_VALUE);
- e->probability = REG_BR_PROB_BASE / 8;
-
- t = fd->loops[i + 1].n1;
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loops[i + 1].v, t);
- gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
- }
- else
- collapse_bb = bb;
-
- set_immediate_dominator (CDI_DOMINATORS, bb, last_bb);
-
- if (POINTER_TYPE_P (vtype))
- t = fold_build_pointer_plus (fd->loops[i].v, fd->loops[i].step);
- else
- t = fold_build2 (PLUS_EXPR, vtype, fd->loops[i].v,
- fd->loops[i].step);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loops[i].v, t);
- gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
-
- if (i > 0)
- {
- t = fd->loops[i].n2;
- t = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- t = fold_build2 (fd->loops[i].cond_code, boolean_type_node,
- fd->loops[i].v, t);
- stmt = gimple_build_cond_empty (t);
- gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
- e = make_edge (bb, l1_bb, EDGE_TRUE_VALUE);
- e->probability = REG_BR_PROB_BASE * 7 / 8;
- }
- else
- make_edge (bb, l1_bb, EDGE_FALLTHRU);
- last_bb = bb;
- }
- }
-
- /* Emit code to get the next parallel iteration in L2_BB. */
- gsi = gsi_start_bb (l2_bb);
+ /* Emit code to get the next parallel iteration in L2_BB. */
+ gsi = gsi_start_bb (l2_bb);
t = build_call_expr (builtin_decl_explicit (next_fn), 2,
build_fold_addr_expr (istart0),
gsi = gsi_last_bb (exit_bb);
if (gimple_omp_return_nowait_p (gsi_stmt (gsi)))
t = builtin_decl_explicit (BUILT_IN_GOMP_LOOP_END_NOWAIT);
+ else if (gimple_omp_return_lhs (gsi_stmt (gsi)))
+ t = builtin_decl_explicit (BUILT_IN_GOMP_LOOP_END_CANCEL);
else
t = builtin_decl_explicit (BUILT_IN_GOMP_LOOP_END);
stmt = gimple_build_call (t, 0);
+ if (gimple_omp_return_lhs (gsi_stmt (gsi)))
+ gimple_call_set_lhs (stmt, gimple_omp_return_lhs (gsi_stmt (gsi)));
gsi_insert_after (&gsi, stmt, GSI_SAME_STMT);
gsi_remove (&gsi, true);
remove_edge (e);
make_edge (cont_bb, l2_bb, EDGE_FALSE_VALUE);
- if (fd->collapse > 1)
+ if (current_loops)
+ add_bb_to_loop (l2_bb, cont_bb->loop_father);
+ e = find_edge (cont_bb, l1_bb);
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ remove_edge (e);
+ e = NULL;
+ }
+ else if (fd->collapse > 1)
{
- e = find_edge (cont_bb, l1_bb);
remove_edge (e);
e = make_edge (cont_bb, collapse_bb, EDGE_TRUE_VALUE);
}
else
+ e->flags = EDGE_TRUE_VALUE;
+ if (e)
{
- e = find_edge (cont_bb, l1_bb);
- e->flags = EDGE_TRUE_VALUE;
+ e->probability = REG_BR_PROB_BASE * 7 / 8;
+ find_edge (cont_bb, l2_bb)->probability = REG_BR_PROB_BASE / 8;
+ }
+ else
+ {
+ e = find_edge (cont_bb, l2_bb);
+ e->flags = EDGE_FALLTHRU;
}
- e->probability = REG_BR_PROB_BASE * 7 / 8;
- find_edge (cont_bb, l2_bb)->probability = REG_BR_PROB_BASE / 8;
make_edge (l2_bb, l0_bb, EDGE_TRUE_VALUE);
set_immediate_dominator (CDI_DOMINATORS, l2_bb,
recompute_dominator (CDI_DOMINATORS, l0_bb));
set_immediate_dominator (CDI_DOMINATORS, l1_bb,
recompute_dominator (CDI_DOMINATORS, l1_bb));
+
+ struct loop *outer_loop = alloc_loop ();
+ outer_loop->header = l0_bb;
+ outer_loop->latch = l2_bb;
+ add_loop (outer_loop, l0_bb->loop_father);
+
+ if (!gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ struct loop *loop = alloc_loop ();
+ loop->header = l1_bb;
+ /* The loop may have multiple latches. */
+ add_loop (loop, outer_loop);
+ }
}
}
where COND is "<" or ">", we generate pseudocode
+ if ((__typeof (V)) -1 > 0 && N2 cond N1) goto L2;
if (cond is <)
adj = STEP - 1;
else
static void
expand_omp_for_static_nochunk (struct omp_region *region,
- struct omp_for_data *fd)
+ struct omp_for_data *fd,
+ gimple inner_stmt)
{
tree n, q, s0, e0, e, t, tt, nthreads, threadid;
tree type, itype, vmain, vback;
basic_block entry_bb, second_bb, third_bb, exit_bb, seq_start_bb;
- basic_block body_bb, cont_bb;
+ basic_block body_bb, cont_bb, collapse_bb = NULL;
basic_block fin_bb;
gimple_stmt_iterator gsi;
gimple stmt;
edge ep;
+ enum built_in_function get_num_threads = BUILT_IN_OMP_GET_NUM_THREADS;
+ enum built_in_function get_thread_num = BUILT_IN_OMP_GET_THREAD_NUM;
+ bool broken_loop = region->cont == NULL;
+ tree *counts = NULL;
+ tree n1, n2, step;
itype = type = TREE_TYPE (fd->loop.v);
if (POINTER_TYPE_P (type))
- itype = lang_hooks.types.type_for_size (TYPE_PRECISION (type), 0);
+ itype = signed_type_for (type);
entry_bb = region->entry;
cont_bb = region->cont;
gcc_assert (EDGE_COUNT (entry_bb->succs) == 2);
- gcc_assert (BRANCH_EDGE (entry_bb)->dest == FALLTHRU_EDGE (cont_bb)->dest);
+ fin_bb = BRANCH_EDGE (entry_bb)->dest;
+ gcc_assert (broken_loop
+ || (fin_bb == FALLTHRU_EDGE (cont_bb)->dest));
seq_start_bb = split_edge (FALLTHRU_EDGE (entry_bb));
body_bb = single_succ (seq_start_bb);
- gcc_assert (BRANCH_EDGE (cont_bb)->dest == body_bb);
- gcc_assert (EDGE_COUNT (cont_bb->succs) == 2);
- fin_bb = FALLTHRU_EDGE (cont_bb)->dest;
+ if (!broken_loop)
+ {
+ gcc_assert (BRANCH_EDGE (cont_bb)->dest == body_bb);
+ gcc_assert (EDGE_COUNT (cont_bb->succs) == 2);
+ }
exit_bb = region->exit;
/* Iteration space partitioning goes in ENTRY_BB. */
gsi = gsi_last_bb (entry_bb);
gcc_assert (gimple_code (gsi_stmt (gsi)) == GIMPLE_OMP_FOR);
- t = build_call_expr (builtin_decl_explicit (BUILT_IN_OMP_GET_NUM_THREADS), 0);
+ if (gimple_omp_for_kind (fd->for_stmt) == GF_OMP_FOR_KIND_DISTRIBUTE)
+ {
+ get_num_threads = BUILT_IN_OMP_GET_NUM_TEAMS;
+ get_thread_num = BUILT_IN_OMP_GET_TEAM_NUM;
+ }
+
+ if (fd->collapse > 1)
+ {
+ int first_zero_iter = -1;
+ basic_block l2_dom_bb = NULL;
+
+ counts = XALLOCAVEC (tree, fd->collapse);
+ expand_omp_for_init_counts (fd, &gsi, entry_bb, counts,
+ fin_bb, first_zero_iter,
+ l2_dom_bb);
+ t = NULL_TREE;
+ }
+ else if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ t = integer_one_node;
+ else
+ t = fold_binary (fd->loop.cond_code, boolean_type_node,
+ fold_convert (type, fd->loop.n1),
+ fold_convert (type, fd->loop.n2));
+ if (fd->collapse == 1
+ && TYPE_UNSIGNED (type)
+ && (t == NULL_TREE || !integer_onep (t)))
+ {
+ n1 = fold_convert (type, unshare_expr (fd->loop.n1));
+ n1 = force_gimple_operand_gsi (&gsi, n1, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ n2 = fold_convert (type, unshare_expr (fd->loop.n2));
+ n2 = force_gimple_operand_gsi (&gsi, n2, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ stmt = gimple_build_cond (fd->loop.cond_code, n1, n2,
+ NULL_TREE, NULL_TREE);
+ gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+ if (walk_tree (gimple_cond_lhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL)
+ || walk_tree (gimple_cond_rhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL))
+ {
+ gsi = gsi_for_stmt (stmt);
+ gimple_regimplify_operands (stmt, &gsi);
+ }
+ ep = split_block (entry_bb, stmt);
+ ep->flags = EDGE_TRUE_VALUE;
+ entry_bb = ep->dest;
+ ep->probability = REG_BR_PROB_BASE - (REG_BR_PROB_BASE / 2000 - 1);
+ ep = make_edge (ep->src, fin_bb, EDGE_FALSE_VALUE);
+ ep->probability = REG_BR_PROB_BASE / 2000 - 1;
+ if (gimple_in_ssa_p (cfun))
+ {
+ int dest_idx = find_edge (entry_bb, fin_bb)->dest_idx;
+ for (gsi = gsi_start_phis (fin_bb);
+ !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple phi = gsi_stmt (gsi);
+ add_phi_arg (phi, gimple_phi_arg_def (phi, dest_idx),
+ ep, UNKNOWN_LOCATION);
+ }
+ }
+ gsi = gsi_last_bb (entry_bb);
+ }
+
+ t = build_call_expr (builtin_decl_explicit (get_num_threads), 0);
t = fold_convert (itype, t);
nthreads = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
true, GSI_SAME_STMT);
- t = build_call_expr (builtin_decl_explicit (BUILT_IN_OMP_GET_THREAD_NUM), 0);
+ t = build_call_expr (builtin_decl_explicit (get_thread_num), 0);
t = fold_convert (itype, t);
threadid = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
true, GSI_SAME_STMT);
- fd->loop.n1
- = force_gimple_operand_gsi (&gsi, fold_convert (type, fd->loop.n1),
- true, NULL_TREE, true, GSI_SAME_STMT);
- fd->loop.n2
- = force_gimple_operand_gsi (&gsi, fold_convert (itype, fd->loop.n2),
- true, NULL_TREE, true, GSI_SAME_STMT);
- fd->loop.step
- = force_gimple_operand_gsi (&gsi, fold_convert (itype, fd->loop.step),
- true, NULL_TREE, true, GSI_SAME_STMT);
+ n1 = fd->loop.n1;
+ n2 = fd->loop.n2;
+ step = fd->loop.step;
+ if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ {
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n1 = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n2 = OMP_CLAUSE_DECL (innerc);
+ }
+ n1 = force_gimple_operand_gsi (&gsi, fold_convert (type, n1),
+ true, NULL_TREE, true, GSI_SAME_STMT);
+ n2 = force_gimple_operand_gsi (&gsi, fold_convert (itype, n2),
+ true, NULL_TREE, true, GSI_SAME_STMT);
+ step = force_gimple_operand_gsi (&gsi, fold_convert (itype, step),
+ true, NULL_TREE, true, GSI_SAME_STMT);
t = build_int_cst (itype, (fd->loop.cond_code == LT_EXPR ? -1 : 1));
- t = fold_build2 (PLUS_EXPR, itype, fd->loop.step, t);
- t = fold_build2 (PLUS_EXPR, itype, t, fd->loop.n2);
- t = fold_build2 (MINUS_EXPR, itype, t, fold_convert (itype, fd->loop.n1));
+ t = fold_build2 (PLUS_EXPR, itype, step, t);
+ t = fold_build2 (PLUS_EXPR, itype, t, n2);
+ t = fold_build2 (MINUS_EXPR, itype, t, fold_convert (itype, n1));
if (TYPE_UNSIGNED (itype) && fd->loop.cond_code == GT_EXPR)
t = fold_build2 (TRUNC_DIV_EXPR, itype,
fold_build1 (NEGATE_EXPR, itype, t),
- fold_build1 (NEGATE_EXPR, itype, fd->loop.step));
+ fold_build1 (NEGATE_EXPR, itype, step));
else
- t = fold_build2 (TRUNC_DIV_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (TRUNC_DIV_EXPR, itype, t, step);
t = fold_convert (itype, t);
n = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE, true, GSI_SAME_STMT);
- q = create_tmp_var (itype, "q");
+ q = create_tmp_reg (itype, "q");
t = fold_build2 (TRUNC_DIV_EXPR, itype, n, nthreads);
t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE, true, GSI_SAME_STMT);
gsi_insert_before (&gsi, gimple_build_assign (q, t), GSI_SAME_STMT);
- tt = create_tmp_var (itype, "tt");
+ tt = create_tmp_reg (itype, "tt");
t = fold_build2 (TRUNC_MOD_EXPR, itype, n, nthreads);
t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE, true, GSI_SAME_STMT);
gsi_insert_before (&gsi, gimple_build_assign (tt, t), GSI_SAME_STMT);
/* Setup code for sequential iteration goes in SEQ_START_BB. */
gsi = gsi_start_bb (seq_start_bb);
+ tree startvar = fd->loop.v;
+ tree endvar = NULL_TREE;
+
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ tree clauses = gimple_code (inner_stmt) == GIMPLE_OMP_PARALLEL
+ ? gimple_omp_parallel_clauses (inner_stmt)
+ : gimple_omp_for_clauses (inner_stmt);
+ tree innerc = find_omp_clause (clauses, OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ startvar = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ endvar = OMP_CLAUSE_DECL (innerc);
+ }
t = fold_convert (itype, s0);
- t = fold_build2 (MULT_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (MULT_EXPR, itype, t, step);
if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (fd->loop.n1, t);
+ t = fold_build_pointer_plus (n1, t);
else
- t = fold_build2 (PLUS_EXPR, type, t, fd->loop.n1);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loop.v, t);
+ t = fold_build2 (PLUS_EXPR, type, t, n1);
+ t = fold_convert (TREE_TYPE (startvar), t);
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (startvar)
+ && TREE_ADDRESSABLE (startvar),
+ NULL_TREE, false, GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (startvar, t);
gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
t = fold_convert (itype, e0);
- t = fold_build2 (MULT_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (MULT_EXPR, itype, t, step);
if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (fd->loop.n1, t);
+ t = fold_build_pointer_plus (n1, t);
else
- t = fold_build2 (PLUS_EXPR, type, t, fd->loop.n1);
+ t = fold_build2 (PLUS_EXPR, type, t, n1);
+ t = fold_convert (TREE_TYPE (startvar), t);
e = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
false, GSI_CONTINUE_LINKING);
+ if (endvar)
+ {
+ stmt = gimple_build_assign (endvar, e);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+ }
+ if (fd->collapse > 1)
+ expand_omp_for_init_vars (fd, &gsi, counts, inner_stmt, startvar);
- /* The code controlling the sequential loop replaces the
- GIMPLE_OMP_CONTINUE. */
- gsi = gsi_last_bb (cont_bb);
- stmt = gsi_stmt (gsi);
- gcc_assert (gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
- vmain = gimple_omp_continue_control_use (stmt);
- vback = gimple_omp_continue_control_def (stmt);
+ if (!broken_loop)
+ {
+ /* The code controlling the sequential loop replaces the
+ GIMPLE_OMP_CONTINUE. */
+ gsi = gsi_last_bb (cont_bb);
+ stmt = gsi_stmt (gsi);
+ gcc_assert (gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
+ vmain = gimple_omp_continue_control_use (stmt);
+ vback = gimple_omp_continue_control_def (stmt);
- if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (vmain, fd->loop.step);
- else
- t = fold_build2 (PLUS_EXPR, type, vmain, fd->loop.step);
- t = force_gimple_operand_gsi (&gsi, t, false, NULL_TREE,
- true, GSI_SAME_STMT);
- stmt = gimple_build_assign (vback, t);
- gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+ if (!gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ if (POINTER_TYPE_P (type))
+ t = fold_build_pointer_plus (vmain, step);
+ else
+ t = fold_build2 (PLUS_EXPR, type, vmain, step);
+ t = force_gimple_operand_gsi (&gsi, t,
+ DECL_P (vback)
+ && TREE_ADDRESSABLE (vback),
+ NULL_TREE, true, GSI_SAME_STMT);
+ stmt = gimple_build_assign (vback, t);
+ gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+
+ t = build2 (fd->loop.cond_code, boolean_type_node,
+ DECL_P (vback) && TREE_ADDRESSABLE (vback)
+ ? t : vback, e);
+ gsi_insert_before (&gsi, gimple_build_cond_empty (t), GSI_SAME_STMT);
+ }
- t = build2 (fd->loop.cond_code, boolean_type_node, vback, e);
- gsi_insert_before (&gsi, gimple_build_cond_empty (t), GSI_SAME_STMT);
+ /* Remove the GIMPLE_OMP_CONTINUE statement. */
+ gsi_remove (&gsi, true);
- /* Remove the GIMPLE_OMP_CONTINUE statement. */
- gsi_remove (&gsi, true);
+ if (fd->collapse > 1 && !gimple_omp_for_combined_p (fd->for_stmt))
+ collapse_bb = extract_omp_for_update_vars (fd, cont_bb, body_bb);
+ }
/* Replace the GIMPLE_OMP_RETURN with a barrier, or nothing. */
gsi = gsi_last_bb (exit_bb);
if (!gimple_omp_return_nowait_p (gsi_stmt (gsi)))
- force_gimple_operand_gsi (&gsi, build_omp_barrier (), false, NULL_TREE,
- false, GSI_SAME_STMT);
+ {
+ t = gimple_omp_return_lhs (gsi_stmt (gsi));
+ gsi_insert_after (&gsi, build_omp_barrier (t), GSI_SAME_STMT);
+ }
gsi_remove (&gsi, true);
/* Connect all the blocks. */
find_edge (third_bb, seq_start_bb)->flags = EDGE_FALSE_VALUE;
find_edge (third_bb, fin_bb)->flags = EDGE_TRUE_VALUE;
- find_edge (cont_bb, body_bb)->flags = EDGE_TRUE_VALUE;
- find_edge (cont_bb, fin_bb)->flags = EDGE_FALSE_VALUE;
+ if (!broken_loop)
+ {
+ ep = find_edge (cont_bb, body_bb);
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ remove_edge (ep);
+ ep = NULL;
+ }
+ else if (fd->collapse > 1)
+ {
+ remove_edge (ep);
+ ep = make_edge (cont_bb, collapse_bb, EDGE_TRUE_VALUE);
+ }
+ else
+ ep->flags = EDGE_TRUE_VALUE;
+ find_edge (cont_bb, fin_bb)->flags
+ = ep ? EDGE_FALSE_VALUE : EDGE_FALLTHRU;
+ }
set_immediate_dominator (CDI_DOMINATORS, second_bb, entry_bb);
set_immediate_dominator (CDI_DOMINATORS, third_bb, entry_bb);
set_immediate_dominator (CDI_DOMINATORS, seq_start_bb, third_bb);
+
set_immediate_dominator (CDI_DOMINATORS, body_bb,
recompute_dominator (CDI_DOMINATORS, body_bb));
set_immediate_dominator (CDI_DOMINATORS, fin_bb,
recompute_dominator (CDI_DOMINATORS, fin_bb));
+
+ if (!broken_loop && !gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ struct loop *loop = alloc_loop ();
+ loop->header = body_bb;
+ if (collapse_bb == NULL)
+ loop->latch = cont_bb;
+ add_loop (loop, body_bb->loop_father);
+ }
}
where COND is "<" or ">", we generate pseudocode
+ if ((__typeof (V)) -1 > 0 && N2 cond N1) goto L2;
if (cond is <)
adj = STEP - 1;
else
*/
static void
-expand_omp_for_static_chunk (struct omp_region *region, struct omp_for_data *fd)
+expand_omp_for_static_chunk (struct omp_region *region,
+ struct omp_for_data *fd, gimple inner_stmt)
{
tree n, s0, e0, e, t;
tree trip_var, trip_init, trip_main, trip_back, nthreads, threadid;
tree type, itype, v_main, v_back, v_extra;
basic_block entry_bb, exit_bb, body_bb, seq_start_bb, iter_part_bb;
- basic_block trip_update_bb, cont_bb, fin_bb;
+ basic_block trip_update_bb = NULL, cont_bb, collapse_bb = NULL, fin_bb;
gimple_stmt_iterator si;
gimple stmt;
edge se;
+ enum built_in_function get_num_threads = BUILT_IN_OMP_GET_NUM_THREADS;
+ enum built_in_function get_thread_num = BUILT_IN_OMP_GET_THREAD_NUM;
+ bool broken_loop = region->cont == NULL;
+ tree *counts = NULL;
+ tree n1, n2, step;
itype = type = TREE_TYPE (fd->loop.v);
if (POINTER_TYPE_P (type))
- itype = lang_hooks.types.type_for_size (TYPE_PRECISION (type), 0);
+ itype = signed_type_for (type);
entry_bb = region->entry;
se = split_block (entry_bb, last_stmt (entry_bb));
iter_part_bb = se->dest;
cont_bb = region->cont;
gcc_assert (EDGE_COUNT (iter_part_bb->succs) == 2);
- gcc_assert (BRANCH_EDGE (iter_part_bb)->dest
- == FALLTHRU_EDGE (cont_bb)->dest);
+ fin_bb = BRANCH_EDGE (iter_part_bb)->dest;
+ gcc_assert (broken_loop
+ || fin_bb == FALLTHRU_EDGE (cont_bb)->dest);
seq_start_bb = split_edge (FALLTHRU_EDGE (iter_part_bb));
body_bb = single_succ (seq_start_bb);
- gcc_assert (BRANCH_EDGE (cont_bb)->dest == body_bb);
- gcc_assert (EDGE_COUNT (cont_bb->succs) == 2);
- fin_bb = FALLTHRU_EDGE (cont_bb)->dest;
- trip_update_bb = split_edge (FALLTHRU_EDGE (cont_bb));
+ if (!broken_loop)
+ {
+ gcc_assert (BRANCH_EDGE (cont_bb)->dest == body_bb);
+ gcc_assert (EDGE_COUNT (cont_bb->succs) == 2);
+ trip_update_bb = split_edge (FALLTHRU_EDGE (cont_bb));
+ }
exit_bb = region->exit;
/* Trip and adjustment setup goes in ENTRY_BB. */
si = gsi_last_bb (entry_bb);
gcc_assert (gimple_code (gsi_stmt (si)) == GIMPLE_OMP_FOR);
- t = build_call_expr (builtin_decl_explicit (BUILT_IN_OMP_GET_NUM_THREADS), 0);
+ if (gimple_omp_for_kind (fd->for_stmt) == GF_OMP_FOR_KIND_DISTRIBUTE)
+ {
+ get_num_threads = BUILT_IN_OMP_GET_NUM_TEAMS;
+ get_thread_num = BUILT_IN_OMP_GET_TEAM_NUM;
+ }
+
+ if (fd->collapse > 1)
+ {
+ int first_zero_iter = -1;
+ basic_block l2_dom_bb = NULL;
+
+ counts = XALLOCAVEC (tree, fd->collapse);
+ expand_omp_for_init_counts (fd, &si, entry_bb, counts,
+ fin_bb, first_zero_iter,
+ l2_dom_bb);
+ t = NULL_TREE;
+ }
+ else if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ t = integer_one_node;
+ else
+ t = fold_binary (fd->loop.cond_code, boolean_type_node,
+ fold_convert (type, fd->loop.n1),
+ fold_convert (type, fd->loop.n2));
+ if (fd->collapse == 1
+ && TYPE_UNSIGNED (type)
+ && (t == NULL_TREE || !integer_onep (t)))
+ {
+ n1 = fold_convert (type, unshare_expr (fd->loop.n1));
+ n1 = force_gimple_operand_gsi (&si, n1, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ n2 = fold_convert (type, unshare_expr (fd->loop.n2));
+ n2 = force_gimple_operand_gsi (&si, n2, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ stmt = gimple_build_cond (fd->loop.cond_code, n1, n2,
+ NULL_TREE, NULL_TREE);
+ gsi_insert_before (&si, stmt, GSI_SAME_STMT);
+ if (walk_tree (gimple_cond_lhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL)
+ || walk_tree (gimple_cond_rhs_ptr (stmt),
+ expand_omp_regimplify_p, NULL, NULL))
+ {
+ si = gsi_for_stmt (stmt);
+ gimple_regimplify_operands (stmt, &si);
+ }
+ se = split_block (entry_bb, stmt);
+ se->flags = EDGE_TRUE_VALUE;
+ entry_bb = se->dest;
+ se->probability = REG_BR_PROB_BASE - (REG_BR_PROB_BASE / 2000 - 1);
+ se = make_edge (se->src, fin_bb, EDGE_FALSE_VALUE);
+ se->probability = REG_BR_PROB_BASE / 2000 - 1;
+ if (gimple_in_ssa_p (cfun))
+ {
+ int dest_idx = find_edge (entry_bb, fin_bb)->dest_idx;
+ for (si = gsi_start_phis (fin_bb);
+ !gsi_end_p (si); gsi_next (&si))
+ {
+ gimple phi = gsi_stmt (si);
+ add_phi_arg (phi, gimple_phi_arg_def (phi, dest_idx),
+ se, UNKNOWN_LOCATION);
+ }
+ }
+ si = gsi_last_bb (entry_bb);
+ }
+
+ t = build_call_expr (builtin_decl_explicit (get_num_threads), 0);
t = fold_convert (itype, t);
nthreads = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
true, GSI_SAME_STMT);
- t = build_call_expr (builtin_decl_explicit (BUILT_IN_OMP_GET_THREAD_NUM), 0);
+ t = build_call_expr (builtin_decl_explicit (get_thread_num), 0);
t = fold_convert (itype, t);
threadid = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
true, GSI_SAME_STMT);
- fd->loop.n1
- = force_gimple_operand_gsi (&si, fold_convert (type, fd->loop.n1),
- true, NULL_TREE, true, GSI_SAME_STMT);
- fd->loop.n2
- = force_gimple_operand_gsi (&si, fold_convert (itype, fd->loop.n2),
- true, NULL_TREE, true, GSI_SAME_STMT);
- fd->loop.step
- = force_gimple_operand_gsi (&si, fold_convert (itype, fd->loop.step),
- true, NULL_TREE, true, GSI_SAME_STMT);
+ n1 = fd->loop.n1;
+ n2 = fd->loop.n2;
+ step = fd->loop.step;
+ if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ {
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n1 = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n2 = OMP_CLAUSE_DECL (innerc);
+ }
+ n1 = force_gimple_operand_gsi (&si, fold_convert (type, n1),
+ true, NULL_TREE, true, GSI_SAME_STMT);
+ n2 = force_gimple_operand_gsi (&si, fold_convert (itype, n2),
+ true, NULL_TREE, true, GSI_SAME_STMT);
+ step = force_gimple_operand_gsi (&si, fold_convert (itype, step),
+ true, NULL_TREE, true, GSI_SAME_STMT);
fd->chunk_size
= force_gimple_operand_gsi (&si, fold_convert (itype, fd->chunk_size),
true, NULL_TREE, true, GSI_SAME_STMT);
t = build_int_cst (itype, (fd->loop.cond_code == LT_EXPR ? -1 : 1));
- t = fold_build2 (PLUS_EXPR, itype, fd->loop.step, t);
- t = fold_build2 (PLUS_EXPR, itype, t, fd->loop.n2);
- t = fold_build2 (MINUS_EXPR, itype, t, fold_convert (itype, fd->loop.n1));
+ t = fold_build2 (PLUS_EXPR, itype, step, t);
+ t = fold_build2 (PLUS_EXPR, itype, t, n2);
+ t = fold_build2 (MINUS_EXPR, itype, t, fold_convert (itype, n1));
if (TYPE_UNSIGNED (itype) && fd->loop.cond_code == GT_EXPR)
t = fold_build2 (TRUNC_DIV_EXPR, itype,
fold_build1 (NEGATE_EXPR, itype, t),
- fold_build1 (NEGATE_EXPR, itype, fd->loop.step));
+ fold_build1 (NEGATE_EXPR, itype, step));
else
- t = fold_build2 (TRUNC_DIV_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (TRUNC_DIV_EXPR, itype, t, step);
t = fold_convert (itype, t);
n = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
true, GSI_SAME_STMT);
- trip_var = create_tmp_var (itype, ".trip");
+ trip_var = create_tmp_reg (itype, ".trip");
if (gimple_in_ssa_p (cfun))
{
- add_referenced_var (trip_var);
trip_init = make_ssa_name (trip_var, NULL);
trip_main = make_ssa_name (trip_var, NULL);
trip_back = make_ssa_name (trip_var, NULL);
gsi_insert_before (&si, stmt, GSI_SAME_STMT);
t = fold_build2 (MULT_EXPR, itype, threadid, fd->chunk_size);
- t = fold_build2 (MULT_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (MULT_EXPR, itype, t, step);
if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (fd->loop.n1, t);
+ t = fold_build_pointer_plus (n1, t);
else
- t = fold_build2 (PLUS_EXPR, type, t, fd->loop.n1);
+ t = fold_build2 (PLUS_EXPR, type, t, n1);
v_extra = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
true, GSI_SAME_STMT);
/* Setup code for sequential iteration goes in SEQ_START_BB. */
si = gsi_start_bb (seq_start_bb);
+ tree startvar = fd->loop.v;
+ tree endvar = NULL_TREE;
+
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ tree clauses = gimple_code (inner_stmt) == GIMPLE_OMP_PARALLEL
+ ? gimple_omp_parallel_clauses (inner_stmt)
+ : gimple_omp_for_clauses (inner_stmt);
+ tree innerc = find_omp_clause (clauses, OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ startvar = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ endvar = OMP_CLAUSE_DECL (innerc);
+ }
+
t = fold_convert (itype, s0);
- t = fold_build2 (MULT_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (MULT_EXPR, itype, t, step);
if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (fd->loop.n1, t);
+ t = fold_build_pointer_plus (n1, t);
else
- t = fold_build2 (PLUS_EXPR, type, t, fd->loop.n1);
- t = force_gimple_operand_gsi (&si, t, false, NULL_TREE,
- false, GSI_CONTINUE_LINKING);
- stmt = gimple_build_assign (fd->loop.v, t);
+ t = fold_build2 (PLUS_EXPR, type, t, n1);
+ t = fold_convert (TREE_TYPE (startvar), t);
+ t = force_gimple_operand_gsi (&si, t,
+ DECL_P (startvar)
+ && TREE_ADDRESSABLE (startvar),
+ NULL_TREE, false, GSI_CONTINUE_LINKING);
+ stmt = gimple_build_assign (startvar, t);
gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
t = fold_convert (itype, e0);
- t = fold_build2 (MULT_EXPR, itype, t, fd->loop.step);
+ t = fold_build2 (MULT_EXPR, itype, t, step);
if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (fd->loop.n1, t);
+ t = fold_build_pointer_plus (n1, t);
else
- t = fold_build2 (PLUS_EXPR, type, t, fd->loop.n1);
+ t = fold_build2 (PLUS_EXPR, type, t, n1);
+ t = fold_convert (TREE_TYPE (startvar), t);
e = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
false, GSI_CONTINUE_LINKING);
+ if (endvar)
+ {
+ stmt = gimple_build_assign (endvar, e);
+ gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
+ }
+ if (fd->collapse > 1)
+ expand_omp_for_init_vars (fd, &si, counts, inner_stmt, startvar);
- /* The code controlling the sequential loop goes in CONT_BB,
- replacing the GIMPLE_OMP_CONTINUE. */
- si = gsi_last_bb (cont_bb);
- stmt = gsi_stmt (si);
- gcc_assert (gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
- v_main = gimple_omp_continue_control_use (stmt);
- v_back = gimple_omp_continue_control_def (stmt);
+ if (!broken_loop)
+ {
+ /* The code controlling the sequential loop goes in CONT_BB,
+ replacing the GIMPLE_OMP_CONTINUE. */
+ si = gsi_last_bb (cont_bb);
+ stmt = gsi_stmt (si);
+ gcc_assert (gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
+ v_main = gimple_omp_continue_control_use (stmt);
+ v_back = gimple_omp_continue_control_def (stmt);
- if (POINTER_TYPE_P (type))
- t = fold_build_pointer_plus (v_main, fd->loop.step);
- else
- t = fold_build2 (PLUS_EXPR, type, v_main, fd->loop.step);
- stmt = gimple_build_assign (v_back, t);
- gsi_insert_before (&si, stmt, GSI_SAME_STMT);
+ if (!gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ if (POINTER_TYPE_P (type))
+ t = fold_build_pointer_plus (v_main, step);
+ else
+ t = fold_build2 (PLUS_EXPR, type, v_main, step);
+ if (DECL_P (v_back) && TREE_ADDRESSABLE (v_back))
+ t = force_gimple_operand_gsi (&si, t, true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ stmt = gimple_build_assign (v_back, t);
+ gsi_insert_before (&si, stmt, GSI_SAME_STMT);
- t = build2 (fd->loop.cond_code, boolean_type_node, v_back, e);
- gsi_insert_before (&si, gimple_build_cond_empty (t), GSI_SAME_STMT);
+ t = build2 (fd->loop.cond_code, boolean_type_node,
+ DECL_P (v_back) && TREE_ADDRESSABLE (v_back)
+ ? t : v_back, e);
+ gsi_insert_before (&si, gimple_build_cond_empty (t), GSI_SAME_STMT);
+ }
- /* Remove GIMPLE_OMP_CONTINUE. */
- gsi_remove (&si, true);
+ /* Remove GIMPLE_OMP_CONTINUE. */
+ gsi_remove (&si, true);
- /* Trip update code goes into TRIP_UPDATE_BB. */
- si = gsi_start_bb (trip_update_bb);
+ if (fd->collapse > 1 && !gimple_omp_for_combined_p (fd->for_stmt))
+ collapse_bb = extract_omp_for_update_vars (fd, cont_bb, body_bb);
- t = build_int_cst (itype, 1);
- t = build2 (PLUS_EXPR, itype, trip_main, t);
- stmt = gimple_build_assign (trip_back, t);
- gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
+ /* Trip update code goes into TRIP_UPDATE_BB. */
+ si = gsi_start_bb (trip_update_bb);
+
+ t = build_int_cst (itype, 1);
+ t = build2 (PLUS_EXPR, itype, trip_main, t);
+ stmt = gimple_build_assign (trip_back, t);
+ gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
+ }
/* Replace the GIMPLE_OMP_RETURN with a barrier, or nothing. */
si = gsi_last_bb (exit_bb);
if (!gimple_omp_return_nowait_p (gsi_stmt (si)))
- force_gimple_operand_gsi (&si, build_omp_barrier (), false, NULL_TREE,
- false, GSI_SAME_STMT);
+ {
+ t = gimple_omp_return_lhs (gsi_stmt (si));
+ gsi_insert_after (&si, build_omp_barrier (t), GSI_SAME_STMT);
+ }
gsi_remove (&si, true);
/* Connect the new blocks. */
find_edge (iter_part_bb, seq_start_bb)->flags = EDGE_TRUE_VALUE;
find_edge (iter_part_bb, fin_bb)->flags = EDGE_FALSE_VALUE;
- find_edge (cont_bb, body_bb)->flags = EDGE_TRUE_VALUE;
- find_edge (cont_bb, trip_update_bb)->flags = EDGE_FALSE_VALUE;
+ if (!broken_loop)
+ {
+ se = find_edge (cont_bb, body_bb);
+ if (gimple_omp_for_combined_p (fd->for_stmt))
+ {
+ remove_edge (se);
+ se = NULL;
+ }
+ else if (fd->collapse > 1)
+ {
+ remove_edge (se);
+ se = make_edge (cont_bb, collapse_bb, EDGE_TRUE_VALUE);
+ }
+ else
+ se->flags = EDGE_TRUE_VALUE;
+ find_edge (cont_bb, trip_update_bb)->flags
+ = se ? EDGE_FALSE_VALUE : EDGE_FALLTHRU;
- redirect_edge_and_branch (single_succ_edge (trip_update_bb), iter_part_bb);
+ redirect_edge_and_branch (single_succ_edge (trip_update_bb), iter_part_bb);
+ }
if (gimple_in_ssa_p (cfun))
{
gimple_stmt_iterator psi;
gimple phi;
edge re, ene;
- edge_var_map_vector head;
+ edge_var_map_vector *head;
edge_var_map *vm;
size_t i;
+ gcc_assert (fd->collapse == 1 && !broken_loop);
+
/* When we redirect the edge from trip_update_bb to iter_part_bb, we
remove arguments of the phi nodes in fin_bb. We need to create
appropriate phi nodes in iter_part_bb instead. */
ene = single_succ_edge (entry_bb);
psi = gsi_start_phis (fin_bb);
- for (i = 0; !gsi_end_p (psi) && VEC_iterate (edge_var_map, head, i, vm);
+ for (i = 0; !gsi_end_p (psi) && head->iterate (i, &vm);
gsi_next (&psi), ++i)
{
gimple nphi;
t = gimple_phi_result (phi);
gcc_assert (t == redirect_edge_var_map_result (vm));
nphi = create_phi_node (t, iter_part_bb);
- SSA_NAME_DEF_STMT (t) = nphi;
t = PHI_ARG_DEF_FROM_EDGE (phi, se);
locus = gimple_phi_arg_location_from_edge (phi, se);
locus = redirect_edge_var_map_location (vm);
add_phi_arg (nphi, redirect_edge_var_map_def (vm), re, locus);
}
- gcc_assert (!gsi_end_p (psi) && i == VEC_length (edge_var_map, head));
+ gcc_assert (!gsi_end_p (psi) && i == head->length ());
redirect_edge_var_map_clear (re);
while (1)
{
/* Make phi node for trip. */
phi = create_phi_node (trip_main, iter_part_bb);
- SSA_NAME_DEF_STMT (trip_main) = phi;
add_phi_arg (phi, trip_back, single_succ_edge (trip_update_bb),
UNKNOWN_LOCATION);
add_phi_arg (phi, trip_init, single_succ_edge (entry_bb),
UNKNOWN_LOCATION);
}
- set_immediate_dominator (CDI_DOMINATORS, trip_update_bb, cont_bb);
+ if (!broken_loop)
+ set_immediate_dominator (CDI_DOMINATORS, trip_update_bb, cont_bb);
set_immediate_dominator (CDI_DOMINATORS, iter_part_bb,
recompute_dominator (CDI_DOMINATORS, iter_part_bb));
set_immediate_dominator (CDI_DOMINATORS, fin_bb,
recompute_dominator (CDI_DOMINATORS, seq_start_bb));
set_immediate_dominator (CDI_DOMINATORS, body_bb,
recompute_dominator (CDI_DOMINATORS, body_bb));
-}
-
-
-/* Expand the OpenMP loop defined by REGION. */
-
-static void
-expand_omp_for (struct omp_region *region)
-{
- struct omp_for_data fd;
- struct omp_for_data_loop *loops;
-
- loops
- = (struct omp_for_data_loop *)
- alloca (gimple_omp_for_collapse (last_stmt (region->entry))
- * sizeof (struct omp_for_data_loop));
- extract_omp_for_data (last_stmt (region->entry), &fd, loops);
- region->sched_kind = fd.sched_kind;
-
- gcc_assert (EDGE_COUNT (region->entry->succs) == 2);
- BRANCH_EDGE (region->entry)->flags &= ~EDGE_ABNORMAL;
- FALLTHRU_EDGE (region->entry)->flags &= ~EDGE_ABNORMAL;
- if (region->cont)
- {
- gcc_assert (EDGE_COUNT (region->cont->succs) == 2);
- BRANCH_EDGE (region->cont)->flags &= ~EDGE_ABNORMAL;
- FALLTHRU_EDGE (region->cont)->flags &= ~EDGE_ABNORMAL;
- }
- if (fd.sched_kind == OMP_CLAUSE_SCHEDULE_STATIC
- && !fd.have_ordered
- && fd.collapse == 1
- && region->cont != NULL)
- {
- if (fd.chunk_size == NULL)
- expand_omp_for_static_nochunk (region, &fd);
- else
- expand_omp_for_static_chunk (region, &fd);
- }
- else
+ if (!broken_loop)
{
- int fn_index, start_ix, next_ix;
+ struct loop *trip_loop = alloc_loop ();
+ trip_loop->header = iter_part_bb;
+ trip_loop->latch = trip_update_bb;
+ add_loop (trip_loop, iter_part_bb->loop_father);
- gcc_assert (fd.sched_kind != OMP_CLAUSE_SCHEDULE_AUTO);
- fn_index = (fd.sched_kind == OMP_CLAUSE_SCHEDULE_RUNTIME)
- ? 3 : fd.sched_kind;
- fn_index += fd.have_ordered * 4;
- start_ix = ((int)BUILT_IN_GOMP_LOOP_STATIC_START) + fn_index;
- next_ix = ((int)BUILT_IN_GOMP_LOOP_STATIC_NEXT) + fn_index;
- if (fd.iter_type == long_long_unsigned_type_node)
+ if (!gimple_omp_for_combined_p (fd->for_stmt))
{
- start_ix += ((int)BUILT_IN_GOMP_LOOP_ULL_STATIC_START
- - (int)BUILT_IN_GOMP_LOOP_STATIC_START);
- next_ix += ((int)BUILT_IN_GOMP_LOOP_ULL_STATIC_NEXT
- - (int)BUILT_IN_GOMP_LOOP_STATIC_NEXT);
+ struct loop *loop = alloc_loop ();
+ loop->header = body_bb;
+ if (collapse_bb == NULL)
+ loop->latch = cont_bb;
+ add_loop (loop, trip_loop);
}
- expand_omp_for_generic (region, &fd, (enum built_in_function) start_ix,
- (enum built_in_function) next_ix);
}
-
- update_ssa (TODO_update_ssa_only_virtuals);
}
-/* Expand code for an OpenMP sections directive. In pseudo code, we generate
+/* A subroutine of expand_omp_for. Generate code for a simd non-worksharing
+ loop. Given parameters:
- v = GOMP_sections_start (n);
+ for (V = N1; V cond N2; V += STEP) BODY;
+
+ where COND is "<" or ">", we generate pseudocode
+
+ V = N1;
+ goto L1;
L0:
- switch (v)
- {
- case 0:
- goto L2;
- case 1:
- section 1;
- goto L1;
- case 2:
- ...
- case n:
- ...
- default:
- abort ();
- }
+ BODY;
+ V += STEP;
L1:
- v = GOMP_sections_next ();
- goto L0;
+ if (V cond N2) goto L0; else goto L2;
L2:
- reduction;
- If this is a combined parallel sections, replace the call to
- GOMP_sections_start with call to GOMP_sections_next. */
+ For collapsed loops, given parameters:
+ collapse(3)
+ for (V1 = N11; V1 cond1 N12; V1 += STEP1)
+ for (V2 = N21; V2 cond2 N22; V2 += STEP2)
+ for (V3 = N31; V3 cond3 N32; V3 += STEP3)
+ BODY;
-static void
-expand_omp_sections (struct omp_region *region)
-{
- tree t, u, vin = NULL, vmain, vnext, l2;
- VEC (tree,heap) *label_vec;
- unsigned len;
- basic_block entry_bb, l0_bb, l1_bb, l2_bb, default_bb;
- gimple_stmt_iterator si, switch_si;
- gimple sections_stmt, stmt, cont;
- edge_iterator ei;
- edge e;
- struct omp_region *inner;
+ we generate pseudocode
+
+ if (cond3 is <)
+ adj = STEP3 - 1;
+ else
+ adj = STEP3 + 1;
+ count3 = (adj + N32 - N31) / STEP3;
+ if (cond2 is <)
+ adj = STEP2 - 1;
+ else
+ adj = STEP2 + 1;
+ count2 = (adj + N22 - N21) / STEP2;
+ if (cond1 is <)
+ adj = STEP1 - 1;
+ else
+ adj = STEP1 + 1;
+ count1 = (adj + N12 - N11) / STEP1;
+ count = count1 * count2 * count3;
+ V = 0;
+ V1 = N11;
+ V2 = N21;
+ V3 = N31;
+ goto L1;
+ L0:
+ BODY;
+ V += 1;
+ V3 += STEP3;
+ V2 += (V3 cond3 N32) ? 0 : STEP2;
+ V3 = (V3 cond3 N32) ? V3 : N31;
+ V1 += (V2 cond2 N22) ? 0 : STEP1;
+ V2 = (V2 cond2 N22) ? V2 : N21;
+ L1:
+ if (V < count) goto L0; else goto L2;
+ L2:
+
+ */
+
+static void
+expand_omp_simd (struct omp_region *region, struct omp_for_data *fd)
+{
+ tree type, t;
+ basic_block entry_bb, cont_bb, exit_bb, l0_bb, l1_bb, l2_bb, l2_dom_bb;
+ gimple_stmt_iterator gsi;
+ gimple stmt;
+ bool broken_loop = region->cont == NULL;
+ edge e, ne;
+ tree *counts = NULL;
+ int i;
+ tree safelen = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE_SAFELEN);
+ tree simduid = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__SIMDUID_);
+ tree n1, n2;
+
+ type = TREE_TYPE (fd->loop.v);
+ entry_bb = region->entry;
+ cont_bb = region->cont;
+ gcc_assert (EDGE_COUNT (entry_bb->succs) == 2);
+ gcc_assert (broken_loop
+ || BRANCH_EDGE (entry_bb)->dest == FALLTHRU_EDGE (cont_bb)->dest);
+ l0_bb = FALLTHRU_EDGE (entry_bb)->dest;
+ if (!broken_loop)
+ {
+ gcc_assert (BRANCH_EDGE (cont_bb)->dest == l0_bb);
+ gcc_assert (EDGE_COUNT (cont_bb->succs) == 2);
+ l1_bb = split_block (cont_bb, last_stmt (cont_bb))->dest;
+ l2_bb = BRANCH_EDGE (entry_bb)->dest;
+ }
+ else
+ {
+ BRANCH_EDGE (entry_bb)->flags &= ~EDGE_ABNORMAL;
+ l1_bb = split_edge (BRANCH_EDGE (entry_bb));
+ l2_bb = single_succ (l1_bb);
+ }
+ exit_bb = region->exit;
+ l2_dom_bb = NULL;
+
+ gsi = gsi_last_bb (entry_bb);
+
+ gcc_assert (gimple_code (gsi_stmt (gsi)) == GIMPLE_OMP_FOR);
+ /* Not needed in SSA form right now. */
+ gcc_assert (!gimple_in_ssa_p (cfun));
+ if (fd->collapse > 1)
+ {
+ int first_zero_iter = -1;
+ basic_block zero_iter_bb = l2_bb;
+
+ counts = XALLOCAVEC (tree, fd->collapse);
+ expand_omp_for_init_counts (fd, &gsi, entry_bb, counts,
+ zero_iter_bb, first_zero_iter,
+ l2_dom_bb);
+ }
+ if (l2_dom_bb == NULL)
+ l2_dom_bb = l1_bb;
+
+ n1 = fd->loop.n1;
+ n2 = fd->loop.n2;
+ if (gimple_omp_for_combined_into_p (fd->for_stmt))
+ {
+ tree innerc = find_omp_clause (gimple_omp_for_clauses (fd->for_stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n1 = OMP_CLAUSE_DECL (innerc);
+ innerc = find_omp_clause (OMP_CLAUSE_CHAIN (innerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ gcc_assert (innerc);
+ n2 = OMP_CLAUSE_DECL (innerc);
+ expand_omp_build_assign (&gsi, fd->loop.v,
+ fold_convert (type, n1));
+ if (fd->collapse > 1)
+ {
+ gsi_prev (&gsi);
+ expand_omp_for_init_vars (fd, &gsi, counts, NULL, n1);
+ gsi_next (&gsi);
+ }
+ }
+ else
+ {
+ expand_omp_build_assign (&gsi, fd->loop.v,
+ fold_convert (type, fd->loop.n1));
+ if (fd->collapse > 1)
+ for (i = 0; i < fd->collapse; i++)
+ {
+ tree itype = TREE_TYPE (fd->loops[i].v);
+ if (POINTER_TYPE_P (itype))
+ itype = signed_type_for (itype);
+ t = fold_convert (TREE_TYPE (fd->loops[i].v), fd->loops[i].n1);
+ expand_omp_build_assign (&gsi, fd->loops[i].v, t);
+ }
+ }
+
+ /* Remove the GIMPLE_OMP_FOR statement. */
+ gsi_remove (&gsi, true);
+
+ if (!broken_loop)
+ {
+ /* Code to control the increment goes in the CONT_BB. */
+ gsi = gsi_last_bb (cont_bb);
+ stmt = gsi_stmt (gsi);
+ gcc_assert (gimple_code (stmt) == GIMPLE_OMP_CONTINUE);
+
+ if (POINTER_TYPE_P (type))
+ t = fold_build_pointer_plus (fd->loop.v, fd->loop.step);
+ else
+ t = fold_build2 (PLUS_EXPR, type, fd->loop.v, fd->loop.step);
+ expand_omp_build_assign (&gsi, fd->loop.v, t);
+
+ if (fd->collapse > 1)
+ {
+ i = fd->collapse - 1;
+ if (POINTER_TYPE_P (TREE_TYPE (fd->loops[i].v)))
+ {
+ t = fold_convert (sizetype, fd->loops[i].step);
+ t = fold_build_pointer_plus (fd->loops[i].v, t);
+ }
+ else
+ {
+ t = fold_convert (TREE_TYPE (fd->loops[i].v),
+ fd->loops[i].step);
+ t = fold_build2 (PLUS_EXPR, TREE_TYPE (fd->loops[i].v),
+ fd->loops[i].v, t);
+ }
+ expand_omp_build_assign (&gsi, fd->loops[i].v, t);
+
+ for (i = fd->collapse - 1; i > 0; i--)
+ {
+ tree itype = TREE_TYPE (fd->loops[i].v);
+ tree itype2 = TREE_TYPE (fd->loops[i - 1].v);
+ if (POINTER_TYPE_P (itype2))
+ itype2 = signed_type_for (itype2);
+ t = build3 (COND_EXPR, itype2,
+ build2 (fd->loops[i].cond_code, boolean_type_node,
+ fd->loops[i].v,
+ fold_convert (itype, fd->loops[i].n2)),
+ build_int_cst (itype2, 0),
+ fold_convert (itype2, fd->loops[i - 1].step));
+ if (POINTER_TYPE_P (TREE_TYPE (fd->loops[i - 1].v)))
+ t = fold_build_pointer_plus (fd->loops[i - 1].v, t);
+ else
+ t = fold_build2 (PLUS_EXPR, itype2, fd->loops[i - 1].v, t);
+ expand_omp_build_assign (&gsi, fd->loops[i - 1].v, t);
+
+ t = build3 (COND_EXPR, itype,
+ build2 (fd->loops[i].cond_code, boolean_type_node,
+ fd->loops[i].v,
+ fold_convert (itype, fd->loops[i].n2)),
+ fd->loops[i].v,
+ fold_convert (itype, fd->loops[i].n1));
+ expand_omp_build_assign (&gsi, fd->loops[i].v, t);
+ }
+ }
+
+ /* Remove GIMPLE_OMP_CONTINUE. */
+ gsi_remove (&gsi, true);
+ }
+
+ /* Emit the condition in L1_BB. */
+ gsi = gsi_start_bb (l1_bb);
+
+ t = fold_convert (type, n2);
+ t = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE,
+ false, GSI_CONTINUE_LINKING);
+ t = build2 (fd->loop.cond_code, boolean_type_node, fd->loop.v, t);
+ stmt = gimple_build_cond_empty (t);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+ if (walk_tree (gimple_cond_lhs_ptr (stmt), expand_omp_regimplify_p,
+ NULL, NULL)
+ || walk_tree (gimple_cond_rhs_ptr (stmt), expand_omp_regimplify_p,
+ NULL, NULL))
+ {
+ gsi = gsi_for_stmt (stmt);
+ gimple_regimplify_operands (stmt, &gsi);
+ }
+
+ /* Remove GIMPLE_OMP_RETURN. */
+ gsi = gsi_last_bb (exit_bb);
+ gsi_remove (&gsi, true);
+
+ /* Connect the new blocks. */
+ remove_edge (FALLTHRU_EDGE (entry_bb));
+
+ if (!broken_loop)
+ {
+ remove_edge (BRANCH_EDGE (entry_bb));
+ make_edge (entry_bb, l1_bb, EDGE_FALLTHRU);
+
+ e = BRANCH_EDGE (l1_bb);
+ ne = FALLTHRU_EDGE (l1_bb);
+ e->flags = EDGE_TRUE_VALUE;
+ }
+ else
+ {
+ single_succ_edge (entry_bb)->flags = EDGE_FALLTHRU;
+
+ ne = single_succ_edge (l1_bb);
+ e = make_edge (l1_bb, l0_bb, EDGE_TRUE_VALUE);
+
+ }
+ ne->flags = EDGE_FALSE_VALUE;
+ e->probability = REG_BR_PROB_BASE * 7 / 8;
+ ne->probability = REG_BR_PROB_BASE / 8;
+
+ set_immediate_dominator (CDI_DOMINATORS, l1_bb, entry_bb);
+ set_immediate_dominator (CDI_DOMINATORS, l2_bb, l2_dom_bb);
+ set_immediate_dominator (CDI_DOMINATORS, l0_bb, l1_bb);
+
+ if (!broken_loop)
+ {
+ struct loop *loop = alloc_loop ();
+ loop->header = l1_bb;
+ loop->latch = cont_bb;
+ add_loop (loop, l1_bb->loop_father);
+ if (safelen == NULL_TREE)
+ loop->safelen = INT_MAX;
+ else
+ {
+ safelen = OMP_CLAUSE_SAFELEN_EXPR (safelen);
+ if (!tree_fits_uhwi_p (safelen)
+ || tree_to_uhwi (safelen) > INT_MAX)
+ loop->safelen = INT_MAX;
+ else
+ loop->safelen = tree_to_uhwi (safelen);
+ if (loop->safelen == 1)
+ loop->safelen = 0;
+ }
+ if (simduid)
+ {
+ loop->simduid = OMP_CLAUSE__SIMDUID__DECL (simduid);
+ cfun->has_simduid_loops = true;
+ }
+ /* If not -fno-tree-loop-vectorize, hint that we want to vectorize
+ the loop. */
+ if ((flag_tree_loop_vectorize
+ || (!global_options_set.x_flag_tree_loop_vectorize
+ && !global_options_set.x_flag_tree_vectorize))
+ && flag_tree_loop_optimize
+ && loop->safelen > 1)
+ {
+ loop->force_vect = true;
+ cfun->has_force_vect_loops = true;
+ }
+ }
+}
+
+
+/* Expand the OpenMP loop defined by REGION. */
+
+static void
+expand_omp_for (struct omp_region *region, gimple inner_stmt)
+{
+ struct omp_for_data fd;
+ struct omp_for_data_loop *loops;
+
+ loops
+ = (struct omp_for_data_loop *)
+ alloca (gimple_omp_for_collapse (last_stmt (region->entry))
+ * sizeof (struct omp_for_data_loop));
+ extract_omp_for_data (last_stmt (region->entry), &fd, loops);
+ region->sched_kind = fd.sched_kind;
+
+ gcc_assert (EDGE_COUNT (region->entry->succs) == 2);
+ BRANCH_EDGE (region->entry)->flags &= ~EDGE_ABNORMAL;
+ FALLTHRU_EDGE (region->entry)->flags &= ~EDGE_ABNORMAL;
+ if (region->cont)
+ {
+ gcc_assert (EDGE_COUNT (region->cont->succs) == 2);
+ BRANCH_EDGE (region->cont)->flags &= ~EDGE_ABNORMAL;
+ FALLTHRU_EDGE (region->cont)->flags &= ~EDGE_ABNORMAL;
+ }
+ else
+ /* If there isn't a continue then this is a degerate case where
+ the introduction of abnormal edges during lowering will prevent
+ original loops from being detected. Fix that up. */
+ loops_state_set (LOOPS_NEED_FIXUP);
+
+ if (gimple_omp_for_kind (fd.for_stmt) & GF_OMP_FOR_KIND_SIMD)
+ expand_omp_simd (region, &fd);
+ else if (fd.sched_kind == OMP_CLAUSE_SCHEDULE_STATIC
+ && !fd.have_ordered)
+ {
+ if (fd.chunk_size == NULL)
+ expand_omp_for_static_nochunk (region, &fd, inner_stmt);
+ else
+ expand_omp_for_static_chunk (region, &fd, inner_stmt);
+ }
+ else
+ {
+ int fn_index, start_ix, next_ix;
+
+ gcc_assert (gimple_omp_for_kind (fd.for_stmt)
+ == GF_OMP_FOR_KIND_FOR);
+ if (fd.chunk_size == NULL
+ && fd.sched_kind == OMP_CLAUSE_SCHEDULE_STATIC)
+ fd.chunk_size = integer_zero_node;
+ gcc_assert (fd.sched_kind != OMP_CLAUSE_SCHEDULE_AUTO);
+ fn_index = (fd.sched_kind == OMP_CLAUSE_SCHEDULE_RUNTIME)
+ ? 3 : fd.sched_kind;
+ fn_index += fd.have_ordered * 4;
+ start_ix = ((int)BUILT_IN_GOMP_LOOP_STATIC_START) + fn_index;
+ next_ix = ((int)BUILT_IN_GOMP_LOOP_STATIC_NEXT) + fn_index;
+ if (fd.iter_type == long_long_unsigned_type_node)
+ {
+ start_ix += ((int)BUILT_IN_GOMP_LOOP_ULL_STATIC_START
+ - (int)BUILT_IN_GOMP_LOOP_STATIC_START);
+ next_ix += ((int)BUILT_IN_GOMP_LOOP_ULL_STATIC_NEXT
+ - (int)BUILT_IN_GOMP_LOOP_STATIC_NEXT);
+ }
+ expand_omp_for_generic (region, &fd, (enum built_in_function) start_ix,
+ (enum built_in_function) next_ix, inner_stmt);
+ }
+
+ if (gimple_in_ssa_p (cfun))
+ update_ssa (TODO_update_ssa_only_virtuals);
+}
+
+
+/* Expand code for an OpenMP sections directive. In pseudo code, we generate
+
+ v = GOMP_sections_start (n);
+ L0:
+ switch (v)
+ {
+ case 0:
+ goto L2;
+ case 1:
+ section 1;
+ goto L1;
+ case 2:
+ ...
+ case n:
+ ...
+ default:
+ abort ();
+ }
+ L1:
+ v = GOMP_sections_next ();
+ goto L0;
+ L2:
+ reduction;
+
+ If this is a combined parallel sections, replace the call to
+ GOMP_sections_start with call to GOMP_sections_next. */
+
+static void
+expand_omp_sections (struct omp_region *region)
+{
+ tree t, u, vin = NULL, vmain, vnext, l2;
+ unsigned len;
+ basic_block entry_bb, l0_bb, l1_bb, l2_bb, default_bb;
+ gimple_stmt_iterator si, switch_si;
+ gimple sections_stmt, stmt, cont;
+ edge_iterator ei;
+ edge e;
+ struct omp_region *inner;
unsigned i, casei;
bool exit_reachable = region->cont != NULL;
- gcc_assert (exit_reachable == (region->exit != NULL));
+ gcc_assert (region->exit != NULL);
entry_bb = region->entry;
l0_bb = single_succ (entry_bb);
l1_bb = region->cont;
l2_bb = region->exit;
- if (exit_reachable)
+ if (single_pred_p (l2_bb) && single_pred (l2_bb) == l0_bb)
+ l2 = gimple_block_label (l2_bb);
+ else
{
- if (single_pred_p (l2_bb) && single_pred (l2_bb) == l0_bb)
- l2 = gimple_block_label (l2_bb);
+ /* This can happen if there are reductions. */
+ len = EDGE_COUNT (l0_bb->succs);
+ gcc_assert (len > 0);
+ e = EDGE_SUCC (l0_bb, len - 1);
+ si = gsi_last_bb (e->dest);
+ l2 = NULL_TREE;
+ if (gsi_end_p (si)
+ || gimple_code (gsi_stmt (si)) != GIMPLE_OMP_SECTION)
+ l2 = gimple_block_label (e->dest);
else
- {
- /* This can happen if there are reductions. */
- len = EDGE_COUNT (l0_bb->succs);
- gcc_assert (len > 0);
- e = EDGE_SUCC (l0_bb, len - 1);
- si = gsi_last_bb (e->dest);
- l2 = NULL_TREE;
- if (gsi_end_p (si)
- || gimple_code (gsi_stmt (si)) != GIMPLE_OMP_SECTION)
- l2 = gimple_block_label (e->dest);
- else
- FOR_EACH_EDGE (e, ei, l0_bb->succs)
+ FOR_EACH_EDGE (e, ei, l0_bb->succs)
+ {
+ si = gsi_last_bb (e->dest);
+ if (gsi_end_p (si)
+ || gimple_code (gsi_stmt (si)) != GIMPLE_OMP_SECTION)
{
- si = gsi_last_bb (e->dest);
- if (gsi_end_p (si)
- || gimple_code (gsi_stmt (si)) != GIMPLE_OMP_SECTION)
- {
- l2 = gimple_block_label (e->dest);
- break;
- }
+ l2 = gimple_block_label (e->dest);
+ break;
}
- }
- default_bb = create_empty_bb (l1_bb->prev_bb);
+ }
}
+ if (exit_reachable)
+ default_bb = create_empty_bb (l1_bb->prev_bb);
else
- {
- default_bb = create_empty_bb (l0_bb);
- l2 = gimple_block_label (default_bb);
- }
+ default_bb = create_empty_bb (l0_bb);
/* We will build a switch() with enough cases for all the
GIMPLE_OMP_SECTION regions, a '0' case to handle the end of more work
and a default case to abort if something goes wrong. */
len = EDGE_COUNT (l0_bb->succs);
- /* Use VEC_quick_push on label_vec throughout, since we know the size
+ /* Use vec::quick_push on label_vec throughout, since we know the size
in advance. */
- label_vec = VEC_alloc (tree, heap, len);
+ auto_vec<tree> label_vec (len);
/* The call to GOMP_sections_start goes in ENTRY_BB, replacing the
GIMPLE_OMP_SECTIONS statement. */
{
/* If we are not inside a combined parallel+sections region,
call GOMP_sections_start. */
- t = build_int_cst (unsigned_type_node,
- exit_reachable ? len - 1 : len);
+ t = build_int_cst (unsigned_type_node, len - 1);
u = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_START);
stmt = gimple_build_call (u, 1, t);
}
vnext = NULL_TREE;
}
- i = 0;
- if (exit_reachable)
- {
- t = build_case_label (build_int_cst (unsigned_type_node, 0), NULL, l2);
- VEC_quick_push (tree, label_vec, t);
- i++;
- }
+ t = build_case_label (build_int_cst (unsigned_type_node, 0), NULL, l2);
+ label_vec.quick_push (t);
+ i = 1;
/* Convert each GIMPLE_OMP_SECTION into a CASE_LABEL_EXPR. */
for (inner = region->inner, casei = 1;
t = gimple_block_label (s_entry_bb);
u = build_int_cst (unsigned_type_node, casei);
u = build_case_label (u, NULL, t);
- VEC_quick_push (tree, label_vec, u);
+ label_vec.quick_push (u);
si = gsi_last_bb (s_entry_bb);
gcc_assert (gimple_code (gsi_stmt (si)) == GIMPLE_OMP_SECTION);
t = gimple_block_label (default_bb);
u = build_case_label (NULL, NULL, t);
make_edge (l0_bb, default_bb, 0);
+ if (current_loops)
+ add_bb_to_loop (default_bb, current_loops->tree_root);
- stmt = gimple_build_switch_vec (vmain, u, label_vec);
+ stmt = gimple_build_switch (vmain, u, label_vec);
gsi_insert_after (&switch_si, stmt, GSI_SAME_STMT);
gsi_remove (&switch_si, true);
- VEC_free (tree, heap, label_vec);
si = gsi_start_bb (default_bb);
stmt = gimple_build_call (builtin_decl_explicit (BUILT_IN_TRAP), 0);
gsi_remove (&si, true);
single_succ_edge (l1_bb)->flags = EDGE_FALLTHRU;
-
- /* Cleanup function replaces GIMPLE_OMP_RETURN in EXIT_BB. */
- si = gsi_last_bb (l2_bb);
- if (gimple_omp_return_nowait_p (gsi_stmt (si)))
- t = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_END_NOWAIT);
- else
- t = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_END);
- stmt = gimple_build_call (t, 0);
- gsi_insert_after (&si, stmt, GSI_SAME_STMT);
- gsi_remove (&si, true);
}
- set_immediate_dominator (CDI_DOMINATORS, default_bb, l0_bb);
-}
-
+ /* Cleanup function replaces GIMPLE_OMP_RETURN in EXIT_BB. */
+ si = gsi_last_bb (l2_bb);
+ if (gimple_omp_return_nowait_p (gsi_stmt (si)))
+ t = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_END_NOWAIT);
+ else if (gimple_omp_return_lhs (gsi_stmt (si)))
+ t = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_END_CANCEL);
+ else
+ t = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_END);
+ stmt = gimple_build_call (t, 0);
+ if (gimple_omp_return_lhs (gsi_stmt (si)))
+ gimple_call_set_lhs (stmt, gimple_omp_return_lhs (gsi_stmt (si)));
+ gsi_insert_after (&si, stmt, GSI_SAME_STMT);
+ gsi_remove (&si, true);
+
+ set_immediate_dominator (CDI_DOMINATORS, default_bb, l0_bb);
+}
+
/* Expand code for an OpenMP single directive. We've already expanded
much of the code, here we simply place the GOMP_barrier call. */
{
basic_block entry_bb, exit_bb;
gimple_stmt_iterator si;
- bool need_barrier = false;
entry_bb = region->entry;
exit_bb = region->exit;
si = gsi_last_bb (entry_bb);
- /* The terminal barrier at the end of a GOMP_single_copy sequence cannot
- be removed. We need to ensure that the thread that entered the single
- does not exit before the data is copied out by the other threads. */
- if (find_omp_clause (gimple_omp_single_clauses (gsi_stmt (si)),
- OMP_CLAUSE_COPYPRIVATE))
- need_barrier = true;
gcc_assert (gimple_code (gsi_stmt (si)) == GIMPLE_OMP_SINGLE);
gsi_remove (&si, true);
single_succ_edge (entry_bb)->flags = EDGE_FALLTHRU;
si = gsi_last_bb (exit_bb);
- if (!gimple_omp_return_nowait_p (gsi_stmt (si)) || need_barrier)
- force_gimple_operand_gsi (&si, build_omp_barrier (), false, NULL_TREE,
- false, GSI_SAME_STMT);
+ if (!gimple_omp_return_nowait_p (gsi_stmt (si)))
+ {
+ tree t = gimple_omp_return_lhs (gsi_stmt (si));
+ gsi_insert_after (&si, build_omp_barrier (t), GSI_SAME_STMT);
+ }
gsi_remove (&si, true);
single_succ_edge (exit_bb)->flags = EDGE_FALLTHRU;
}
si = gsi_last_bb (entry_bb);
gcc_assert (gimple_code (gsi_stmt (si)) == GIMPLE_OMP_SINGLE
|| gimple_code (gsi_stmt (si)) == GIMPLE_OMP_MASTER
+ || gimple_code (gsi_stmt (si)) == GIMPLE_OMP_TASKGROUP
|| gimple_code (gsi_stmt (si)) == GIMPLE_OMP_ORDERED
- || gimple_code (gsi_stmt (si)) == GIMPLE_OMP_CRITICAL);
+ || gimple_code (gsi_stmt (si)) == GIMPLE_OMP_CRITICAL
+ || gimple_code (gsi_stmt (si)) == GIMPLE_OMP_TEAMS);
gsi_remove (&si, true);
single_succ_edge (entry_bb)->flags = EDGE_FALLTHRU;
itype = TREE_TYPE (TREE_TYPE (decl));
call = build_call_expr_loc (loc, decl, 2, addr,
- build_int_cst (NULL, MEMMODEL_RELAXED));
+ build_int_cst (NULL,
+ gimple_omp_atomic_seq_cst_p (stmt)
+ ? MEMMODEL_SEQ_CST
+ : MEMMODEL_RELAXED));
if (!useless_type_conversion_p (type, itype))
call = fold_build1_loc (loc, VIEW_CONVERT_EXPR, type, call);
call = build2_loc (loc, MODIFY_EXPR, void_type_node, loaded_val, call);
if (!useless_type_conversion_p (itype, type))
stored_val = fold_build1_loc (loc, VIEW_CONVERT_EXPR, itype, stored_val);
call = build_call_expr_loc (loc, decl, 3, addr, stored_val,
- build_int_cst (NULL, MEMMODEL_RELAXED));
+ build_int_cst (NULL,
+ gimple_omp_atomic_seq_cst_p (stmt)
+ ? MEMMODEL_SEQ_CST
+ : MEMMODEL_RELAXED));
if (exchange)
{
if (!useless_type_conversion_p (type, itype))
enum tree_code code;
bool need_old, need_new;
enum machine_mode imode;
+ bool seq_cst;
/* We expect to find the following sequences:
return false;
need_new = gimple_omp_atomic_need_value_p (gsi_stmt (gsi));
need_old = gimple_omp_atomic_need_value_p (last_stmt (load_bb));
+ seq_cst = gimple_omp_atomic_seq_cst_p (last_stmt (load_bb));
gcc_checking_assert (!need_old || !need_new);
if (!operand_equal_p (gimple_assign_lhs (stmt), stored_val, 0))
use the RELAXED memory model. */
call = build_call_expr_loc (loc, decl, 3, addr,
fold_convert_loc (loc, itype, rhs),
- build_int_cst (NULL, MEMMODEL_RELAXED));
+ build_int_cst (NULL,
+ seq_cst ? MEMMODEL_SEQ_CST
+ : MEMMODEL_RELAXED));
if (need_old || need_new)
{
{
tree iaddr_val;
- iaddr = create_tmp_var (build_pointer_type_for_mode (itype, ptr_mode,
+ iaddr = create_tmp_reg (build_pointer_type_for_mode (itype, ptr_mode,
true), NULL);
iaddr_val
= force_gimple_operand_gsi (&si,
gsi_insert_before (&si, stmt, GSI_SAME_STMT);
loadedi = create_tmp_var (itype, NULL);
if (gimple_in_ssa_p (cfun))
- {
- add_referenced_var (iaddr);
- add_referenced_var (loadedi);
- loadedi = make_ssa_name (loadedi, NULL);
- }
+ loadedi = make_ssa_name (loadedi, NULL);
}
else
{
loadedi = loaded_val;
}
+ fncode = (enum built_in_function) (BUILT_IN_ATOMIC_LOAD_N + index + 1);
+ tree loaddecl = builtin_decl_explicit (fncode);
+ if (loaddecl)
+ initial
+ = fold_convert (TREE_TYPE (TREE_TYPE (iaddr)),
+ build_call_expr (loaddecl, 2, iaddr,
+ build_int_cst (NULL_TREE,
+ MEMMODEL_RELAXED)));
+ else
+ initial = build2 (MEM_REF, TREE_TYPE (TREE_TYPE (iaddr)), iaddr,
+ build_int_cst (TREE_TYPE (iaddr), 0));
+
initial
- = force_gimple_operand_gsi (&si,
- build2 (MEM_REF, TREE_TYPE (TREE_TYPE (iaddr)),
- iaddr,
- build_int_cst (TREE_TYPE (iaddr), 0)),
- true, NULL_TREE, true, GSI_SAME_STMT);
+ = force_gimple_operand_gsi (&si, initial, true, NULL_TREE, true,
+ GSI_SAME_STMT);
/* Move the value to the LOADEDI temporary. */
if (gimple_in_ssa_p (cfun))
{
gcc_assert (gimple_seq_empty_p (phi_nodes (loop_header)));
phi = create_phi_node (loadedi, loop_header);
- SSA_NAME_DEF_STMT (loadedi) = phi;
SET_USE (PHI_ARG_DEF_PTR_FROM_EDGE (phi, single_succ_edge (load_bb)),
initial);
}
else
{
old_vali = create_tmp_var (TREE_TYPE (loadedi), NULL);
- if (gimple_in_ssa_p (cfun))
- add_referenced_var (old_vali);
stmt = gimple_build_assign (old_vali, loadedi);
gsi_insert_before (&si, stmt, GSI_SAME_STMT);
/* Remove GIMPLE_OMP_ATOMIC_STORE. */
gsi_remove (&si, true);
+ struct loop *loop = alloc_loop ();
+ loop->header = loop_header;
+ loop->latch = store_bb;
+ add_loop (loop, loop_header->loop_father);
+
if (gimple_in_ssa_p (cfun))
update_ssa (TODO_update_ssa_no_phi);
HOST_WIDE_INT index;
/* Make sure the type is one of the supported sizes. */
- index = tree_low_cst (TYPE_SIZE_UNIT (type), 1);
+ index = tree_to_uhwi (TYPE_SIZE_UNIT (type));
index = exact_log2 (index);
if (index >= 0 && index <= 4)
{
unsigned int align = TYPE_ALIGN_UNIT (type);
/* __sync builtins require strict data alignment. */
- /* ??? Assume BIGGEST_ALIGNMENT *is* aligned. */
- if (exact_log2 (align) >= index
- || align * BITS_PER_UNIT >= BIGGEST_ALIGNMENT)
+ if (exact_log2 (align) >= index)
{
/* Atomic load. */
if (loaded_val == stored_val
}
+/* Expand the OpenMP target{, data, update} directive starting at REGION. */
+
+static void
+expand_omp_target (struct omp_region *region)
+{
+ basic_block entry_bb, exit_bb, new_bb;
+ struct function *child_cfun = NULL;
+ tree child_fn = NULL_TREE, block, t;
+ gimple_stmt_iterator gsi;
+ gimple entry_stmt, stmt;
+ edge e;
+
+ entry_stmt = last_stmt (region->entry);
+ new_bb = region->entry;
+ int kind = gimple_omp_target_kind (entry_stmt);
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ child_fn = gimple_omp_target_child_fn (entry_stmt);
+ child_cfun = DECL_STRUCT_FUNCTION (child_fn);
+ }
+
+ entry_bb = region->entry;
+ exit_bb = region->exit;
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ unsigned srcidx, dstidx, num;
+
+ /* If the target region needs data sent from the parent
+ function, then the very first statement (except possible
+ tree profile counter updates) of the parallel body
+ is a copy assignment .OMP_DATA_I = &.OMP_DATA_O. Since
+ &.OMP_DATA_O is passed as an argument to the child function,
+ we need to replace it with the argument as seen by the child
+ function.
+
+ In most cases, this will end up being the identity assignment
+ .OMP_DATA_I = .OMP_DATA_I. However, if the parallel body had
+ a function call that has been inlined, the original PARM_DECL
+ .OMP_DATA_I may have been converted into a different local
+ variable. In which case, we need to keep the assignment. */
+ if (gimple_omp_target_data_arg (entry_stmt))
+ {
+ basic_block entry_succ_bb = single_succ (entry_bb);
+ gimple_stmt_iterator gsi;
+ tree arg;
+ gimple tgtcopy_stmt = NULL;
+ tree sender
+ = TREE_VEC_ELT (gimple_omp_target_data_arg (entry_stmt), 0);
+
+ for (gsi = gsi_start_bb (entry_succ_bb); ; gsi_next (&gsi))
+ {
+ gcc_assert (!gsi_end_p (gsi));
+ stmt = gsi_stmt (gsi);
+ if (gimple_code (stmt) != GIMPLE_ASSIGN)
+ continue;
+
+ if (gimple_num_ops (stmt) == 2)
+ {
+ tree arg = gimple_assign_rhs1 (stmt);
+
+ /* We're ignoring the subcode because we're
+ effectively doing a STRIP_NOPS. */
+
+ if (TREE_CODE (arg) == ADDR_EXPR
+ && TREE_OPERAND (arg, 0) == sender)
+ {
+ tgtcopy_stmt = stmt;
+ break;
+ }
+ }
+ }
+
+ gcc_assert (tgtcopy_stmt != NULL);
+ arg = DECL_ARGUMENTS (child_fn);
+
+ gcc_assert (gimple_assign_lhs (tgtcopy_stmt) == arg);
+ gsi_remove (&gsi, true);
+ }
+
+ /* Declare local variables needed in CHILD_CFUN. */
+ block = DECL_INITIAL (child_fn);
+ BLOCK_VARS (block) = vec2chain (child_cfun->local_decls);
+ /* The gimplifier could record temporaries in target block
+ rather than in containing function's local_decls chain,
+ which would mean cgraph missed finalizing them. Do it now. */
+ for (t = BLOCK_VARS (block); t; t = DECL_CHAIN (t))
+ if (TREE_CODE (t) == VAR_DECL
+ && TREE_STATIC (t)
+ && !DECL_EXTERNAL (t))
+ varpool_finalize_decl (t);
+ DECL_SAVED_TREE (child_fn) = NULL;
+ /* We'll create a CFG for child_fn, so no gimple body is needed. */
+ gimple_set_body (child_fn, NULL);
+ TREE_USED (block) = 1;
+
+ /* Reset DECL_CONTEXT on function arguments. */
+ for (t = DECL_ARGUMENTS (child_fn); t; t = DECL_CHAIN (t))
+ DECL_CONTEXT (t) = child_fn;
+
+ /* Split ENTRY_BB at GIMPLE_OMP_TARGET,
+ so that it can be moved to the child function. */
+ gsi = gsi_last_bb (entry_bb);
+ stmt = gsi_stmt (gsi);
+ gcc_assert (stmt && gimple_code (stmt) == GIMPLE_OMP_TARGET
+ && gimple_omp_target_kind (stmt)
+ == GF_OMP_TARGET_KIND_REGION);
+ gsi_remove (&gsi, true);
+ e = split_block (entry_bb, stmt);
+ entry_bb = e->dest;
+ single_succ_edge (entry_bb)->flags = EDGE_FALLTHRU;
+
+ /* Convert GIMPLE_OMP_RETURN into a RETURN_EXPR. */
+ if (exit_bb)
+ {
+ gsi = gsi_last_bb (exit_bb);
+ gcc_assert (!gsi_end_p (gsi)
+ && gimple_code (gsi_stmt (gsi)) == GIMPLE_OMP_RETURN);
+ stmt = gimple_build_return (NULL);
+ gsi_insert_after (&gsi, stmt, GSI_SAME_STMT);
+ gsi_remove (&gsi, true);
+ }
+
+ /* Move the target region into CHILD_CFUN. */
+
+ block = gimple_block (entry_stmt);
+
+ new_bb = move_sese_region_to_fn (child_cfun, entry_bb, exit_bb, block);
+ if (exit_bb)
+ single_succ_edge (new_bb)->flags = EDGE_FALLTHRU;
+ /* When the OMP expansion process cannot guarantee an up-to-date
+ loop tree arrange for the child function to fixup loops. */
+ if (loops_state_satisfies_p (LOOPS_NEED_FIXUP))
+ child_cfun->x_current_loops->state |= LOOPS_NEED_FIXUP;
+
+ /* Remove non-local VAR_DECLs from child_cfun->local_decls list. */
+ num = vec_safe_length (child_cfun->local_decls);
+ for (srcidx = 0, dstidx = 0; srcidx < num; srcidx++)
+ {
+ t = (*child_cfun->local_decls)[srcidx];
+ if (DECL_CONTEXT (t) == cfun->decl)
+ continue;
+ if (srcidx != dstidx)
+ (*child_cfun->local_decls)[dstidx] = t;
+ dstidx++;
+ }
+ if (dstidx != num)
+ vec_safe_truncate (child_cfun->local_decls, dstidx);
+
+ /* Inform the callgraph about the new function. */
+ DECL_STRUCT_FUNCTION (child_fn)->curr_properties = cfun->curr_properties;
+ cgraph_add_new_function (child_fn, true);
+
+ /* Fix the callgraph edges for child_cfun. Those for cfun will be
+ fixed in a following pass. */
+ push_cfun (child_cfun);
+ rebuild_cgraph_edges ();
+
+ /* Some EH regions might become dead, see PR34608. If
+ pass_cleanup_cfg isn't the first pass to happen with the
+ new child, these dead EH edges might cause problems.
+ Clean them up now. */
+ if (flag_exceptions)
+ {
+ basic_block bb;
+ bool changed = false;
+
+ FOR_EACH_BB_FN (bb, cfun)
+ changed |= gimple_purge_dead_eh_edges (bb);
+ if (changed)
+ cleanup_tree_cfg ();
+ }
+ pop_cfun ();
+ }
+
+ /* Emit a library call to launch the target region, or do data
+ transfers. */
+ tree t1, t2, t3, t4, device, cond, c, clauses;
+ enum built_in_function start_ix;
+ location_t clause_loc;
+
+ clauses = gimple_omp_target_clauses (entry_stmt);
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ start_ix = BUILT_IN_GOMP_TARGET;
+ else if (kind == GF_OMP_TARGET_KIND_DATA)
+ start_ix = BUILT_IN_GOMP_TARGET_DATA;
+ else
+ start_ix = BUILT_IN_GOMP_TARGET_UPDATE;
+
+ /* By default, the value of DEVICE is -1 (let runtime library choose)
+ and there is no conditional. */
+ cond = NULL_TREE;
+ device = build_int_cst (integer_type_node, -1);
+
+ c = find_omp_clause (clauses, OMP_CLAUSE_IF);
+ if (c)
+ cond = OMP_CLAUSE_IF_EXPR (c);
+
+ c = find_omp_clause (clauses, OMP_CLAUSE_DEVICE);
+ if (c)
+ {
+ device = OMP_CLAUSE_DEVICE_ID (c);
+ clause_loc = OMP_CLAUSE_LOCATION (c);
+ }
+ else
+ clause_loc = gimple_location (entry_stmt);
+
+ /* Ensure 'device' is of the correct type. */
+ device = fold_convert_loc (clause_loc, integer_type_node, device);
+
+ /* If we found the clause 'if (cond)', build
+ (cond ? device : -2). */
+ if (cond)
+ {
+ cond = gimple_boolify (cond);
+
+ basic_block cond_bb, then_bb, else_bb;
+ edge e;
+ tree tmp_var;
+
+ tmp_var = create_tmp_var (TREE_TYPE (device), NULL);
+ if (kind != GF_OMP_TARGET_KIND_REGION)
+ {
+ gsi = gsi_last_bb (new_bb);
+ gsi_prev (&gsi);
+ e = split_block (new_bb, gsi_stmt (gsi));
+ }
+ else
+ e = split_block (new_bb, NULL);
+ cond_bb = e->src;
+ new_bb = e->dest;
+ remove_edge (e);
+
+ then_bb = create_empty_bb (cond_bb);
+ else_bb = create_empty_bb (then_bb);
+ set_immediate_dominator (CDI_DOMINATORS, then_bb, cond_bb);
+ set_immediate_dominator (CDI_DOMINATORS, else_bb, cond_bb);
+
+ stmt = gimple_build_cond_empty (cond);
+ gsi = gsi_last_bb (cond_bb);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+
+ gsi = gsi_start_bb (then_bb);
+ stmt = gimple_build_assign (tmp_var, device);
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+
+ gsi = gsi_start_bb (else_bb);
+ stmt = gimple_build_assign (tmp_var,
+ build_int_cst (integer_type_node, -2));
+ gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+
+ make_edge (cond_bb, then_bb, EDGE_TRUE_VALUE);
+ make_edge (cond_bb, else_bb, EDGE_FALSE_VALUE);
+ if (current_loops)
+ {
+ add_bb_to_loop (then_bb, cond_bb->loop_father);
+ add_bb_to_loop (else_bb, cond_bb->loop_father);
+ }
+ make_edge (then_bb, new_bb, EDGE_FALLTHRU);
+ make_edge (else_bb, new_bb, EDGE_FALLTHRU);
+
+ device = tmp_var;
+ }
+
+ gsi = gsi_last_bb (new_bb);
+ t = gimple_omp_target_data_arg (entry_stmt);
+ if (t == NULL)
+ {
+ t1 = size_zero_node;
+ t2 = build_zero_cst (ptr_type_node);
+ t3 = t2;
+ t4 = t2;
+ }
+ else
+ {
+ t1 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (TREE_VEC_ELT (t, 1))));
+ t1 = size_binop (PLUS_EXPR, t1, size_int (1));
+ t2 = build_fold_addr_expr (TREE_VEC_ELT (t, 0));
+ t3 = build_fold_addr_expr (TREE_VEC_ELT (t, 1));
+ t4 = build_fold_addr_expr (TREE_VEC_ELT (t, 2));
+ }
+
+ gimple g;
+ /* FIXME: This will be address of
+ extern char __OPENMP_TARGET__[] __attribute__((visibility ("hidden")))
+ symbol, as soon as the linker plugin is able to create it for us. */
+ tree openmp_target = build_zero_cst (ptr_type_node);
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ tree fnaddr = build_fold_addr_expr (child_fn);
+ g = gimple_build_call (builtin_decl_explicit (start_ix), 7,
+ device, fnaddr, openmp_target, t1, t2, t3, t4);
+ }
+ else
+ g = gimple_build_call (builtin_decl_explicit (start_ix), 6,
+ device, openmp_target, t1, t2, t3, t4);
+ gimple_set_location (g, gimple_location (entry_stmt));
+ gsi_insert_before (&gsi, g, GSI_SAME_STMT);
+ if (kind != GF_OMP_TARGET_KIND_REGION)
+ {
+ g = gsi_stmt (gsi);
+ gcc_assert (g && gimple_code (g) == GIMPLE_OMP_TARGET);
+ gsi_remove (&gsi, true);
+ }
+ if (kind == GF_OMP_TARGET_KIND_DATA && region->exit)
+ {
+ gsi = gsi_last_bb (region->exit);
+ g = gsi_stmt (gsi);
+ gcc_assert (g && gimple_code (g) == GIMPLE_OMP_RETURN);
+ gsi_remove (&gsi, true);
+ }
+}
+
+
/* Expand the parallel region tree rooted at REGION. Expansion
proceeds in depth-first order. Innermost regions are expanded
first. This way, parallel regions that require a new function to
while (region)
{
location_t saved_location;
+ gimple inner_stmt = NULL;
/* First, determine whether this is a combined parallel+workshare
region. */
if (region->type == GIMPLE_OMP_PARALLEL)
determine_parallel_type (region);
+ if (region->type == GIMPLE_OMP_FOR
+ && gimple_omp_for_combined_p (last_stmt (region->entry)))
+ inner_stmt = last_stmt (region->inner->entry);
+
if (region->inner)
expand_omp (region->inner);
break;
case GIMPLE_OMP_FOR:
- expand_omp_for (region);
+ expand_omp_for (region, inner_stmt);
break;
case GIMPLE_OMP_SECTIONS:
break;
case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_TASKGROUP:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_CRITICAL:
+ case GIMPLE_OMP_TEAMS:
expand_omp_synch (region);
break;
expand_omp_atomic (region);
break;
+ case GIMPLE_OMP_TARGET:
+ expand_omp_target (region);
+ break;
+
default:
gcc_unreachable ();
}
GIMPLE_OMP_SECTIONS, and we do nothing for it. */
;
}
+ else if (code == GIMPLE_OMP_TARGET
+ && gimple_omp_target_kind (stmt) == GF_OMP_TARGET_KIND_UPDATE)
+ new_omp_region (bb, code, parent);
else
{
/* Otherwise, this directive becomes the parent for a new
{
gcc_assert (root_omp_region == NULL);
calculate_dominance_info (CDI_DOMINATORS);
- build_omp_regions_1 (ENTRY_BLOCK_PTR, NULL, false);
+ build_omp_regions_1 (ENTRY_BLOCK_PTR_FOR_FN (cfun), NULL, false);
}
/* Main entry point for expanding OMP-GIMPLE into runtime calls. */
static bool
gate_expand_omp (void)
{
- return (flag_openmp != 0 && !seen_error ());
-}
-
-struct gimple_opt_pass pass_expand_omp =
-{
- {
- GIMPLE_PASS,
- "ompexp", /* name */
- gate_expand_omp, /* gate */
- execute_expand_omp, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- TV_NONE, /* tv_id */
- PROP_gimple_any, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- 0 /* todo_flags_finish */
- }
+ return ((flag_openmp != 0 || flag_openmp_simd != 0
+ || flag_cilkplus != 0) && !seen_error ());
+}
+
+namespace {
+
+const pass_data pass_data_expand_omp =
+{
+ GIMPLE_PASS, /* type */
+ "ompexp", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ true, /* has_gate */
+ true, /* has_execute */
+ TV_NONE, /* tv_id */
+ PROP_gimple_any, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0, /* todo_flags_finish */
};
+
+class pass_expand_omp : public gimple_opt_pass
+{
+public:
+ pass_expand_omp (gcc::context *ctxt)
+ : gimple_opt_pass (pass_data_expand_omp, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ bool gate () { return gate_expand_omp (); }
+ unsigned int execute () { return execute_expand_omp (); }
+
+}; // class pass_expand_omp
+
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_expand_omp (gcc::context *ctxt)
+{
+ return new pass_expand_omp (ctxt);
+}
\f
/* Routines to lower OpenMP directives into OMP-GIMPLE. */
+/* If ctx is a worksharing context inside of a cancellable parallel
+ region and it isn't nowait, add lhs to its GIMPLE_OMP_RETURN
+ and conditional branch to parallel's cancel_label to handle
+ cancellation in the implicit barrier. */
+
+static void
+maybe_add_implicit_barrier_cancel (omp_context *ctx, gimple_seq *body)
+{
+ gimple omp_return = gimple_seq_last_stmt (*body);
+ gcc_assert (gimple_code (omp_return) == GIMPLE_OMP_RETURN);
+ if (gimple_omp_return_nowait_p (omp_return))
+ return;
+ if (ctx->outer
+ && gimple_code (ctx->outer->stmt) == GIMPLE_OMP_PARALLEL
+ && ctx->outer->cancellable)
+ {
+ tree lhs = create_tmp_var (boolean_type_node, NULL);
+ gimple_omp_return_set_lhs (omp_return, lhs);
+ tree fallthru_label = create_artificial_label (UNKNOWN_LOCATION);
+ gimple g = gimple_build_cond (NE_EXPR, lhs, boolean_false_node,
+ ctx->outer->cancel_label, fallthru_label);
+ gimple_seq_add_stmt (body, g);
+ gimple_seq_add_stmt (body, gimple_build_label (fallthru_label));
+ }
+}
+
/* Lower the OpenMP sections directive in the current statement in GSI_P.
CTX is the enclosing OMP context for the current statement. */
{
tree block, control;
gimple_stmt_iterator tgsi;
- unsigned i, len;
gimple stmt, new_stmt, bind, t;
- gimple_seq ilist, dlist, olist, new_body, body;
- struct gimplify_ctx gctx;
+ gimple_seq ilist, dlist, olist, new_body;
stmt = gsi_stmt (*gsi_p);
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
dlist = NULL;
ilist = NULL;
lower_rec_input_clauses (gimple_omp_sections_clauses (stmt),
- &ilist, &dlist, ctx);
+ &ilist, &dlist, ctx, NULL);
- tgsi = gsi_start (gimple_omp_body (stmt));
- for (len = 0; !gsi_end_p (tgsi); len++, gsi_next (&tgsi))
- continue;
-
- tgsi = gsi_start (gimple_omp_body (stmt));
- body = NULL;
- for (i = 0; i < len; i++, gsi_next (&tgsi))
+ new_body = gimple_omp_body (stmt);
+ gimple_omp_set_body (stmt, NULL);
+ tgsi = gsi_start (new_body);
+ for (; !gsi_end_p (tgsi); gsi_next (&tgsi))
{
omp_context *sctx;
gimple sec_start;
sctx = maybe_lookup_ctx (sec_start);
gcc_assert (sctx);
- gimple_seq_add_stmt (&body, sec_start);
-
- lower_omp (gimple_omp_body (sec_start), sctx);
- gimple_seq_add_seq (&body, gimple_omp_body (sec_start));
+ lower_omp (gimple_omp_body_ptr (sec_start), sctx);
+ gsi_insert_seq_after (&tgsi, gimple_omp_body (sec_start),
+ GSI_CONTINUE_LINKING);
gimple_omp_set_body (sec_start, NULL);
- if (i == len - 1)
+ if (gsi_one_before_end_p (tgsi))
{
gimple_seq l = NULL;
lower_lastprivate_clauses (gimple_omp_sections_clauses (stmt), NULL,
&l, ctx);
- gimple_seq_add_seq (&body, l);
+ gsi_insert_seq_after (&tgsi, l, GSI_CONTINUE_LINKING);
gimple_omp_section_set_last (sec_start);
}
- gimple_seq_add_stmt (&body, gimple_build_omp_return (false));
+ gsi_insert_after (&tgsi, gimple_build_omp_return (false),
+ GSI_CONTINUE_LINKING);
}
block = make_node (BLOCK);
- bind = gimple_build_bind (NULL, body, block);
+ bind = gimple_build_bind (NULL, new_body, block);
olist = NULL;
lower_reduction_clauses (gimple_omp_sections_clauses (stmt), &olist, ctx);
block = make_node (BLOCK);
new_stmt = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, new_stmt, true);
pop_gimplify_context (new_stmt);
gimple_bind_append_vars (new_stmt, ctx->block_vars);
gimple_seq_add_stmt (&new_body, t);
gimple_seq_add_seq (&new_body, olist);
+ if (ctx->cancellable)
+ gimple_seq_add_stmt (&new_body, gimple_build_label (ctx->cancel_label));
gimple_seq_add_seq (&new_body, dlist);
new_body = maybe_catch_exception (new_body);
(!!find_omp_clause (gimple_omp_sections_clauses (stmt),
OMP_CLAUSE_NOWAIT));
gimple_seq_add_stmt (&new_body, t);
+ maybe_add_implicit_barrier_cancel (ctx, &new_body);
gimple_bind_set_body (new_stmt, new_body);
- gimple_omp_set_body (stmt, NULL);
-
- gsi_replace (gsi_p, new_stmt, true);
}
{
tree block;
gimple t, bind, single_stmt = gsi_stmt (*gsi_p);
- gimple_seq bind_body, dlist;
- struct gimplify_ctx gctx;
+ gimple_seq bind_body, bind_body_tail = NULL, dlist;
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
+ block = make_node (BLOCK);
+ bind = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, bind, true);
bind_body = NULL;
+ dlist = NULL;
lower_rec_input_clauses (gimple_omp_single_clauses (single_stmt),
- &bind_body, &dlist, ctx);
- lower_omp (gimple_omp_body (single_stmt), ctx);
+ &bind_body, &dlist, ctx, NULL);
+ lower_omp (gimple_omp_body_ptr (single_stmt), ctx);
gimple_seq_add_stmt (&bind_body, single_stmt);
t = gimple_build_omp_return
(!!find_omp_clause (gimple_omp_single_clauses (single_stmt),
OMP_CLAUSE_NOWAIT));
- gimple_seq_add_stmt (&bind_body, t);
-
- block = make_node (BLOCK);
- bind = gimple_build_bind (NULL, bind_body, block);
+ gimple_seq_add_stmt (&bind_body_tail, t);
+ maybe_add_implicit_barrier_cancel (ctx, &bind_body_tail);
+ if (ctx->record_type)
+ {
+ gimple_stmt_iterator gsi = gsi_start (bind_body_tail);
+ tree clobber = build_constructor (ctx->record_type, NULL);
+ TREE_THIS_VOLATILE (clobber) = 1;
+ gsi_insert_after (&gsi, gimple_build_assign (ctx->sender_decl,
+ clobber), GSI_SAME_STMT);
+ }
+ gimple_seq_add_seq (&bind_body, bind_body_tail);
+ gimple_bind_set_body (bind, bind_body);
pop_gimplify_context (bind);
gimple_bind_append_vars (bind, ctx->block_vars);
BLOCK_VARS (block) = ctx->block_vars;
- gsi_replace (gsi_p, bind, true);
if (BLOCK_VARS (block))
TREE_USED (block) = 1;
}
gimple stmt = gsi_stmt (*gsi_p), bind;
location_t loc = gimple_location (stmt);
gimple_seq tseq;
- struct gimplify_ctx gctx;
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
block = make_node (BLOCK);
- bind = gimple_build_bind (NULL, gimple_seq_alloc_with_stmt (stmt),
- block);
+ bind = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, bind, true);
+ gimple_bind_add_stmt (bind, stmt);
bfn_decl = builtin_decl_explicit (BUILT_IN_OMP_GET_THREAD_NUM);
x = build_call_expr_loc (loc, bfn_decl, 0);
gimplify_and_add (x, &tseq);
gimple_bind_add_seq (bind, tseq);
- lower_omp (gimple_omp_body (stmt), ctx);
+ lower_omp (gimple_omp_body_ptr (stmt), ctx);
gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt)));
gimple_bind_add_seq (bind, gimple_omp_body (stmt));
gimple_omp_set_body (stmt, NULL);
gimple_bind_append_vars (bind, ctx->block_vars);
BLOCK_VARS (block) = ctx->block_vars;
+}
+
+
+/* Expand code for an OpenMP taskgroup directive. */
+
+static void
+lower_omp_taskgroup (gimple_stmt_iterator *gsi_p, omp_context *ctx)
+{
+ gimple stmt = gsi_stmt (*gsi_p), bind, x;
+ tree block = make_node (BLOCK);
+
+ bind = gimple_build_bind (NULL, NULL, block);
gsi_replace (gsi_p, bind, true);
+ gimple_bind_add_stmt (bind, stmt);
+
+ x = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_TASKGROUP_START),
+ 0);
+ gimple_bind_add_stmt (bind, x);
+
+ lower_omp (gimple_omp_body_ptr (stmt), ctx);
+ gimple_bind_add_seq (bind, gimple_omp_body (stmt));
+ gimple_omp_set_body (stmt, NULL);
+
+ gimple_bind_add_stmt (bind, gimple_build_omp_return (true));
+
+ gimple_bind_append_vars (bind, ctx->block_vars);
+ BLOCK_VARS (block) = ctx->block_vars;
}
{
tree block;
gimple stmt = gsi_stmt (*gsi_p), bind, x;
- struct gimplify_ctx gctx;
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
block = make_node (BLOCK);
- bind = gimple_build_bind (NULL, gimple_seq_alloc_with_stmt (stmt),
- block);
+ bind = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, bind, true);
+ gimple_bind_add_stmt (bind, stmt);
x = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_ORDERED_START),
0);
gimple_bind_add_stmt (bind, x);
- lower_omp (gimple_omp_body (stmt), ctx);
+ lower_omp (gimple_omp_body_ptr (stmt), ctx);
gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt)));
gimple_bind_add_seq (bind, gimple_omp_body (stmt));
gimple_omp_set_body (stmt, NULL);
gimple_bind_append_vars (bind, ctx->block_vars);
BLOCK_VARS (block) = gimple_bind_vars (bind);
- gsi_replace (gsi_p, bind, true);
}
gimple stmt = gsi_stmt (*gsi_p), bind;
location_t loc = gimple_location (stmt);
gimple_seq tbody;
- struct gimplify_ctx gctx;
name = gimple_omp_critical_name (stmt);
if (name)
unlock = build_call_expr_loc (loc, unlock, 0);
}
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
block = make_node (BLOCK);
- bind = gimple_build_bind (NULL, gimple_seq_alloc_with_stmt (stmt), block);
+ bind = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, bind, true);
+ gimple_bind_add_stmt (bind, stmt);
tbody = gimple_bind_body (bind);
gimplify_and_add (lock, &tbody);
gimple_bind_set_body (bind, tbody);
- lower_omp (gimple_omp_body (stmt), ctx);
+ lower_omp (gimple_omp_body_ptr (stmt), ctx);
gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt)));
gimple_bind_add_seq (bind, gimple_omp_body (stmt));
gimple_omp_set_body (stmt, NULL);
pop_gimplify_context (bind);
gimple_bind_append_vars (bind, ctx->block_vars);
BLOCK_VARS (block) = gimple_bind_vars (bind);
- gsi_replace (gsi_p, bind, true);
}
/* When possible, use a strict equality expression. This can let VRP
type optimizations deduce the value and remove a copy. */
- if (host_integerp (fd->loop.step, 0))
+ if (tree_fits_shwi_p (fd->loop.step))
{
- HOST_WIDE_INT step = TREE_INT_CST_LOW (fd->loop.step);
+ HOST_WIDE_INT step = tree_to_shwi (fd->loop.step);
if (step == 1 || step == -1)
cond_code = EQ_EXPR;
}
/* Optimize: v = 0; is usually cheaper than v = some_other_constant. */
vinit = fd->loop.n1;
if (cond_code == EQ_EXPR
- && host_integerp (fd->loop.n2, 0)
+ && tree_fits_shwi_p (fd->loop.n2)
&& ! integer_zerop (fd->loop.n2))
vinit = build_int_cst (TREE_TYPE (fd->loop.v), 0);
+ else
+ vinit = unshare_expr (vinit);
/* Initialize the iterator variable, so that threads that don't execute
any iterations don't execute the lastprivate clauses by accident. */
lower_omp_for (gimple_stmt_iterator *gsi_p, omp_context *ctx)
{
tree *rhs_p, block;
- struct omp_for_data fd;
+ struct omp_for_data fd, *fdp = NULL;
gimple stmt = gsi_stmt (*gsi_p), new_stmt;
gimple_seq omp_for_body, body, dlist;
size_t i;
- struct gimplify_ctx gctx;
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
- lower_omp (gimple_omp_for_pre_body (stmt), ctx);
- lower_omp (gimple_omp_body (stmt), ctx);
+ lower_omp (gimple_omp_for_pre_body_ptr (stmt), ctx);
block = make_node (BLOCK);
new_stmt = gimple_build_bind (NULL, NULL, block);
+ /* Replace at gsi right away, so that 'stmt' is no member
+ of a sequence anymore as we're going to add to to a different
+ one below. */
+ gsi_replace (gsi_p, new_stmt, true);
/* Move declaration of temporaries in the loop body before we make
it go away. */
if (!gimple_seq_empty_p (omp_for_body)
&& gimple_code (gimple_seq_first_stmt (omp_for_body)) == GIMPLE_BIND)
{
- tree vars = gimple_bind_vars (gimple_seq_first_stmt (omp_for_body));
+ gimple inner_bind = gimple_seq_first_stmt (omp_for_body);
+ tree vars = gimple_bind_vars (inner_bind);
gimple_bind_append_vars (new_stmt, vars);
+ /* bind_vars/BLOCK_VARS are being moved to new_stmt/block, don't
+ keep them on the inner_bind and it's block. */
+ gimple_bind_set_vars (inner_bind, NULL_TREE);
+ if (gimple_bind_block (inner_bind))
+ BLOCK_VARS (gimple_bind_block (inner_bind)) = NULL_TREE;
+ }
+
+ if (gimple_omp_for_combined_into_p (stmt))
+ {
+ extract_omp_for_data (stmt, &fd, NULL);
+ fdp = &fd;
+
+ /* We need two temporaries with fd.loop.v type (istart/iend)
+ and then (fd.collapse - 1) temporaries with the same
+ type for count2 ... countN-1 vars if not constant. */
+ size_t count = 2;
+ tree type = fd.iter_type;
+ if (fd.collapse > 1
+ && TREE_CODE (fd.loop.n2) != INTEGER_CST)
+ count += fd.collapse - 1;
+ bool parallel_for = gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_FOR;
+ tree outerc = NULL, *pc = gimple_omp_for_clauses_ptr (stmt);
+ tree clauses = *pc;
+ if (parallel_for)
+ outerc
+ = find_omp_clause (gimple_omp_parallel_clauses (ctx->outer->stmt),
+ OMP_CLAUSE__LOOPTEMP_);
+ for (i = 0; i < count; i++)
+ {
+ tree temp;
+ if (parallel_for)
+ {
+ gcc_assert (outerc);
+ temp = lookup_decl (OMP_CLAUSE_DECL (outerc), ctx->outer);
+ outerc = find_omp_clause (OMP_CLAUSE_CHAIN (outerc),
+ OMP_CLAUSE__LOOPTEMP_);
+ }
+ else
+ temp = create_tmp_var (type, NULL);
+ *pc = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE__LOOPTEMP_);
+ OMP_CLAUSE_DECL (*pc) = temp;
+ pc = &OMP_CLAUSE_CHAIN (*pc);
+ }
+ *pc = clauses;
}
/* The pre-body and input clauses go before the lowered GIMPLE_OMP_FOR. */
dlist = NULL;
body = NULL;
- lower_rec_input_clauses (gimple_omp_for_clauses (stmt), &body, &dlist, ctx);
+ lower_rec_input_clauses (gimple_omp_for_clauses (stmt), &body, &dlist, ctx,
+ fdp);
gimple_seq_add_seq (&body, gimple_omp_for_pre_body (stmt));
+ lower_omp (gimple_omp_body_ptr (stmt), ctx);
+
/* Lower the header expressions. At this point, we can assume that
the header is of the form:
/* After the loop, add exit clauses. */
lower_reduction_clauses (gimple_omp_for_clauses (stmt), &body, ctx);
+
+ if (ctx->cancellable)
+ gimple_seq_add_stmt (&body, gimple_build_label (ctx->cancel_label));
+
gimple_seq_add_seq (&body, dlist);
body = maybe_catch_exception (body);
/* Region exit marker goes at the end of the loop body. */
gimple_seq_add_stmt (&body, gimple_build_omp_return (fd.have_nowait));
-
+ maybe_add_implicit_barrier_cancel (ctx, &body);
pop_gimplify_context (new_stmt);
gimple_bind_append_vars (new_stmt, ctx->block_vars);
gimple_bind_set_body (new_stmt, body);
gimple_omp_set_body (stmt, NULL);
gimple_omp_for_set_pre_body (stmt, NULL);
- gsi_replace (gsi_p, new_stmt, true);
}
/* Callback for walk_stmts. Check if the current statement only contains
- GIMPLE_OMP_FOR or GIMPLE_OMP_PARALLEL. */
+ GIMPLE_OMP_FOR or GIMPLE_OMP_SECTIONS. */
static tree
check_combined_parallel (gimple_stmt_iterator *gsi_p,
bool record_needs_remap = false, srecord_needs_remap = false;
splay_tree_node n;
struct omp_taskcopy_context tcctx;
- struct gimplify_ctx gctx;
location_t loc = gimple_location (task_stmt);
child_fn = gimple_omp_task_copy_fn (task_stmt);
DECL_CONTEXT (t) = child_fn;
/* Populate the function. */
- push_gimplify_context (&gctx);
- current_function_decl = child_fn;
+ push_gimplify_context ();
+ push_cfun (child_cfun);
bind = build3 (BIND_EXPR, void_type_node, NULL, NULL, NULL);
TREE_SIDE_EFFECTS (bind) = 1;
else
tcctx.cb.decl_map = NULL;
- push_cfun (child_cfun);
-
arg = DECL_ARGUMENTS (child_fn);
TREE_TYPE (arg) = build_pointer_type (record_type);
sarg = DECL_CHAIN (arg);
sf = (tree) n->value;
sf = *(tree *) pointer_map_contains (tcctx.cb.decl_map, sf);
src = build_simple_mem_ref_loc (loc, sarg);
- src = build3 (COMPONENT_REF, TREE_TYPE (sf), src, sf, NULL);
+ src = omp_build_component_ref (src, sf);
t = build2 (MODIFY_EXPR, TREE_TYPE (*p), *p, src);
append_to_statement_list (t, &list);
}
if (tcctx.cb.decl_map)
sf = *(tree *) pointer_map_contains (tcctx.cb.decl_map, sf);
src = build_simple_mem_ref_loc (loc, sarg);
- src = build3 (COMPONENT_REF, TREE_TYPE (sf), src, sf, NULL);
+ src = omp_build_component_ref (src, sf);
dst = build_simple_mem_ref_loc (loc, arg);
- dst = build3 (COMPONENT_REF, TREE_TYPE (f), dst, f, NULL);
+ dst = omp_build_component_ref (dst, f);
t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);
append_to_statement_list (t, &list);
break;
if (tcctx.cb.decl_map)
sf = *(tree *) pointer_map_contains (tcctx.cb.decl_map, sf);
src = build_simple_mem_ref_loc (loc, sarg);
- src = build3 (COMPONENT_REF, TREE_TYPE (sf), src, sf, NULL);
+ src = omp_build_component_ref (src, sf);
if (use_pointer_for_field (decl, NULL) || is_reference (decl))
src = build_simple_mem_ref_loc (loc, src);
}
else
src = decl;
dst = build_simple_mem_ref_loc (loc, arg);
- dst = build3 (COMPONENT_REF, TREE_TYPE (f), dst, f, NULL);
+ dst = omp_build_component_ref (dst, f);
t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src);
append_to_statement_list (t, &list);
break;
if (tcctx.cb.decl_map)
sf = *(tree *) pointer_map_contains (tcctx.cb.decl_map, sf);
src = build_simple_mem_ref_loc (loc, sarg);
- src = build3 (COMPONENT_REF, TREE_TYPE (sf), src, sf, NULL);
+ src = omp_build_component_ref (src, sf);
if (use_pointer_for_field (decl, NULL))
src = build_simple_mem_ref_loc (loc, src);
}
else
src = decl;
dst = build_simple_mem_ref_loc (loc, arg);
- dst = build3 (COMPONENT_REF, TREE_TYPE (f), dst, f, NULL);
+ dst = omp_build_component_ref (dst, f);
t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);
append_to_statement_list (t, &list);
break;
sf = (tree) n->value;
sf = *(tree *) pointer_map_contains (tcctx.cb.decl_map, sf);
src = build_simple_mem_ref_loc (loc, sarg);
- src = build3 (COMPONENT_REF, TREE_TYPE (sf), src, sf, NULL);
+ src = omp_build_component_ref (src, sf);
src = build_simple_mem_ref_loc (loc, src);
dst = build_simple_mem_ref_loc (loc, arg);
- dst = build3 (COMPONENT_REF, TREE_TYPE (f), dst, f, NULL);
+ dst = omp_build_component_ref (dst, f);
t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src);
append_to_statement_list (t, &list);
n = splay_tree_lookup (ctx->field_map,
df = (tree) n->value;
df = *(tree *) pointer_map_contains (tcctx.cb.decl_map, df);
ptr = build_simple_mem_ref_loc (loc, arg);
- ptr = build3 (COMPONENT_REF, TREE_TYPE (df), ptr, df, NULL);
+ ptr = omp_build_component_ref (ptr, df);
t = build2 (MODIFY_EXPR, TREE_TYPE (ptr), ptr,
build_fold_addr_expr_loc (loc, dst));
append_to_statement_list (t, &list);
pop_gimplify_context (NULL);
BIND_EXPR_BODY (bind) = list;
pop_cfun ();
- current_function_decl = ctx->cb.src_fn;
+}
+
+static void
+lower_depend_clauses (gimple stmt, gimple_seq *iseq, gimple_seq *oseq)
+{
+ tree c, clauses;
+ gimple g;
+ size_t n_in = 0, n_out = 0, idx = 2, i;
+
+ clauses = find_omp_clause (gimple_omp_task_clauses (stmt),
+ OMP_CLAUSE_DEPEND);
+ gcc_assert (clauses);
+ for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c))
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND)
+ switch (OMP_CLAUSE_DEPEND_KIND (c))
+ {
+ case OMP_CLAUSE_DEPEND_IN:
+ n_in++;
+ break;
+ case OMP_CLAUSE_DEPEND_OUT:
+ case OMP_CLAUSE_DEPEND_INOUT:
+ n_out++;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+ tree type = build_array_type_nelts (ptr_type_node, n_in + n_out + 2);
+ tree array = create_tmp_var (type, NULL);
+ tree r = build4 (ARRAY_REF, ptr_type_node, array, size_int (0), NULL_TREE,
+ NULL_TREE);
+ g = gimple_build_assign (r, build_int_cst (ptr_type_node, n_in + n_out));
+ gimple_seq_add_stmt (iseq, g);
+ r = build4 (ARRAY_REF, ptr_type_node, array, size_int (1), NULL_TREE,
+ NULL_TREE);
+ g = gimple_build_assign (r, build_int_cst (ptr_type_node, n_out));
+ gimple_seq_add_stmt (iseq, g);
+ for (i = 0; i < 2; i++)
+ {
+ if ((i ? n_in : n_out) == 0)
+ continue;
+ for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c))
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND
+ && ((OMP_CLAUSE_DEPEND_KIND (c) != OMP_CLAUSE_DEPEND_IN) ^ i))
+ {
+ tree t = OMP_CLAUSE_DECL (c);
+ t = fold_convert (ptr_type_node, t);
+ gimplify_expr (&t, iseq, NULL, is_gimple_val, fb_rvalue);
+ r = build4 (ARRAY_REF, ptr_type_node, array, size_int (idx++),
+ NULL_TREE, NULL_TREE);
+ g = gimple_build_assign (r, t);
+ gimple_seq_add_stmt (iseq, g);
+ }
+ }
+ tree *p = gimple_omp_task_clauses_ptr (stmt);
+ c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEPEND);
+ OMP_CLAUSE_DECL (c) = build_fold_addr_expr (array);
+ OMP_CLAUSE_CHAIN (c) = *p;
+ *p = c;
+ tree clobber = build_constructor (type, NULL);
+ TREE_THIS_VOLATILE (clobber) = 1;
+ g = gimple_build_assign (array, clobber);
+ gimple_seq_add_stmt (oseq, g);
}
/* Lower the OpenMP parallel or task directive in the current statement
tree clauses;
tree child_fn, t;
gimple stmt = gsi_stmt (*gsi_p);
- gimple par_bind, bind;
- gimple_seq par_body, olist, ilist, par_olist, par_ilist, new_body;
- struct gimplify_ctx gctx;
+ gimple par_bind, bind, dep_bind = NULL;
+ gimple_seq par_body, olist, ilist, par_olist, par_rlist, par_ilist, new_body;
location_t loc = gimple_location (stmt);
clauses = gimple_omp_taskreg_clauses (stmt);
if (ws_num == 1)
gimple_omp_parallel_set_combined_p (stmt, true);
}
+ gimple_seq dep_ilist = NULL;
+ gimple_seq dep_olist = NULL;
+ if (gimple_code (stmt) == GIMPLE_OMP_TASK
+ && find_omp_clause (clauses, OMP_CLAUSE_DEPEND))
+ {
+ push_gimplify_context ();
+ dep_bind = gimple_build_bind (NULL, NULL, make_node (BLOCK));
+ lower_depend_clauses (stmt, &dep_ilist, &dep_olist);
+ }
+
if (ctx->srecord_type)
create_task_copyfn (stmt, ctx);
- push_gimplify_context (&gctx);
+ push_gimplify_context ();
par_olist = NULL;
par_ilist = NULL;
- lower_rec_input_clauses (clauses, &par_ilist, &par_olist, ctx);
- lower_omp (par_body, ctx);
+ par_rlist = NULL;
+ lower_rec_input_clauses (clauses, &par_ilist, &par_olist, ctx, NULL);
+ lower_omp (&par_body, ctx);
if (gimple_code (stmt) == GIMPLE_OMP_PARALLEL)
- lower_reduction_clauses (clauses, &par_olist, ctx);
+ lower_reduction_clauses (clauses, &par_rlist, ctx);
/* Declare all the variables created by mapping and the variables
declared in the scope of the parallel body. */
lower_send_clauses (clauses, &ilist, &olist, ctx);
lower_send_shared_vars (&ilist, &olist, ctx);
+ if (ctx->record_type)
+ {
+ tree clobber = build_constructor (TREE_TYPE (ctx->sender_decl), NULL);
+ TREE_THIS_VOLATILE (clobber) = 1;
+ gimple_seq_add_stmt (&olist, gimple_build_assign (ctx->sender_decl,
+ clobber));
+ }
+
/* Once all the expansions are done, sequence all the different
fragments inside gimple_omp_body. */
gimple_seq_add_seq (&new_body, par_ilist);
gimple_seq_add_seq (&new_body, par_body);
+ gimple_seq_add_seq (&new_body, par_rlist);
+ if (ctx->cancellable)
+ gimple_seq_add_stmt (&new_body, gimple_build_label (ctx->cancel_label));
gimple_seq_add_seq (&new_body, par_olist);
new_body = maybe_catch_exception (new_body);
gimple_seq_add_stmt (&new_body, gimple_build_omp_return (false));
gimple_omp_set_body (stmt, new_body);
bind = gimple_build_bind (NULL, NULL, gimple_bind_block (par_bind));
+ gsi_replace (gsi_p, dep_bind ? dep_bind : bind, true);
+ gimple_bind_add_seq (bind, ilist);
gimple_bind_add_stmt (bind, stmt);
- if (ilist || olist)
+ gimple_bind_add_seq (bind, olist);
+
+ pop_gimplify_context (NULL);
+
+ if (dep_bind)
+ {
+ gimple_bind_add_seq (dep_bind, dep_ilist);
+ gimple_bind_add_stmt (dep_bind, bind);
+ gimple_bind_add_seq (dep_bind, dep_olist);
+ pop_gimplify_context (dep_bind);
+ }
+}
+
+/* Lower the OpenMP target directive in the current statement
+ in GSI_P. CTX holds context information for the directive. */
+
+static void
+lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
+{
+ tree clauses;
+ tree child_fn, t, c;
+ gimple stmt = gsi_stmt (*gsi_p);
+ gimple tgt_bind = NULL, bind;
+ gimple_seq tgt_body = NULL, olist, ilist, new_body;
+ location_t loc = gimple_location (stmt);
+ int kind = gimple_omp_target_kind (stmt);
+ unsigned int map_cnt = 0;
+
+ clauses = gimple_omp_target_clauses (stmt);
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ tgt_bind = gimple_seq_first_stmt (gimple_omp_body (stmt));
+ tgt_body = gimple_bind_body (tgt_bind);
+ }
+ else if (kind == GF_OMP_TARGET_KIND_DATA)
+ tgt_body = gimple_omp_body (stmt);
+ child_fn = ctx->cb.dst_fn;
+
+ push_gimplify_context ();
+
+ for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
+ switch (OMP_CLAUSE_CODE (c))
+ {
+ tree var, x;
+
+ default:
+ break;
+ case OMP_CLAUSE_MAP:
+ case OMP_CLAUSE_TO:
+ case OMP_CLAUSE_FROM:
+ var = OMP_CLAUSE_DECL (c);
+ if (!DECL_P (var))
+ {
+ if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP
+ || !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c))
+ map_cnt++;
+ continue;
+ }
+
+ if (DECL_SIZE (var)
+ && TREE_CODE (DECL_SIZE (var)) != INTEGER_CST)
+ {
+ tree var2 = DECL_VALUE_EXPR (var);
+ gcc_assert (TREE_CODE (var2) == INDIRECT_REF);
+ var2 = TREE_OPERAND (var2, 0);
+ gcc_assert (DECL_P (var2));
+ var = var2;
+ }
+
+ if (!maybe_lookup_field (var, ctx))
+ continue;
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ x = build_receiver_ref (var, true, ctx);
+ tree new_var = lookup_decl (var, ctx);
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER
+ && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)
+ && TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE)
+ x = build_simple_mem_ref (x);
+ SET_DECL_VALUE_EXPR (new_var, x);
+ DECL_HAS_VALUE_EXPR_P (new_var) = 1;
+ }
+ map_cnt++;
+ }
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ target_nesting_level++;
+ lower_omp (&tgt_body, ctx);
+ target_nesting_level--;
+ }
+ else if (kind == GF_OMP_TARGET_KIND_DATA)
+ lower_omp (&tgt_body, ctx);
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ /* Declare all the variables created by mapping and the variables
+ declared in the scope of the target body. */
+ record_vars_into (ctx->block_vars, child_fn);
+ record_vars_into (gimple_bind_vars (tgt_bind), child_fn);
+ }
+
+ olist = NULL;
+ ilist = NULL;
+ if (ctx->record_type)
+ {
+ ctx->sender_decl
+ = create_tmp_var (ctx->record_type, ".omp_data_arr");
+ DECL_NAMELESS (ctx->sender_decl) = 1;
+ TREE_ADDRESSABLE (ctx->sender_decl) = 1;
+ t = make_tree_vec (3);
+ TREE_VEC_ELT (t, 0) = ctx->sender_decl;
+ TREE_VEC_ELT (t, 1)
+ = create_tmp_var (build_array_type_nelts (size_type_node, map_cnt),
+ ".omp_data_sizes");
+ DECL_NAMELESS (TREE_VEC_ELT (t, 1)) = 1;
+ TREE_ADDRESSABLE (TREE_VEC_ELT (t, 1)) = 1;
+ TREE_STATIC (TREE_VEC_ELT (t, 1)) = 1;
+ TREE_VEC_ELT (t, 2)
+ = create_tmp_var (build_array_type_nelts (unsigned_char_type_node,
+ map_cnt),
+ ".omp_data_kinds");
+ DECL_NAMELESS (TREE_VEC_ELT (t, 2)) = 1;
+ TREE_ADDRESSABLE (TREE_VEC_ELT (t, 2)) = 1;
+ TREE_STATIC (TREE_VEC_ELT (t, 2)) = 1;
+ gimple_omp_target_set_data_arg (stmt, t);
+
+ vec<constructor_elt, va_gc> *vsize;
+ vec<constructor_elt, va_gc> *vkind;
+ vec_alloc (vsize, map_cnt);
+ vec_alloc (vkind, map_cnt);
+ unsigned int map_idx = 0;
+
+ for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
+ switch (OMP_CLAUSE_CODE (c))
+ {
+ tree ovar, nc;
+
+ default:
+ break;
+ case OMP_CLAUSE_MAP:
+ case OMP_CLAUSE_TO:
+ case OMP_CLAUSE_FROM:
+ nc = c;
+ ovar = OMP_CLAUSE_DECL (c);
+ if (!DECL_P (ovar))
+ {
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c))
+ {
+ gcc_checking_assert (OMP_CLAUSE_DECL (OMP_CLAUSE_CHAIN (c))
+ == get_base_address (ovar));
+ nc = OMP_CLAUSE_CHAIN (c);
+ ovar = OMP_CLAUSE_DECL (nc);
+ }
+ else
+ {
+ tree x = build_sender_ref (ovar, ctx);
+ tree v
+ = build_fold_addr_expr_with_type (ovar, ptr_type_node);
+ gimplify_assign (x, v, &ilist);
+ nc = NULL_TREE;
+ }
+ }
+ else
+ {
+ if (DECL_SIZE (ovar)
+ && TREE_CODE (DECL_SIZE (ovar)) != INTEGER_CST)
+ {
+ tree ovar2 = DECL_VALUE_EXPR (ovar);
+ gcc_assert (TREE_CODE (ovar2) == INDIRECT_REF);
+ ovar2 = TREE_OPERAND (ovar2, 0);
+ gcc_assert (DECL_P (ovar2));
+ ovar = ovar2;
+ }
+ if (!maybe_lookup_field (ovar, ctx))
+ continue;
+ }
+
+ if (nc)
+ {
+ tree var = lookup_decl_in_outer_ctx (ovar, ctx);
+ tree x = build_sender_ref (ovar, ctx);
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_POINTER
+ && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)
+ && TREE_CODE (TREE_TYPE (ovar)) == ARRAY_TYPE)
+ {
+ gcc_assert (kind == GF_OMP_TARGET_KIND_REGION);
+ tree avar
+ = create_tmp_var (TREE_TYPE (TREE_TYPE (x)), NULL);
+ mark_addressable (avar);
+ gimplify_assign (avar, build_fold_addr_expr (var), &ilist);
+ avar = build_fold_addr_expr (avar);
+ gimplify_assign (x, avar, &ilist);
+ }
+ else if (is_gimple_reg (var))
+ {
+ gcc_assert (kind == GF_OMP_TARGET_KIND_REGION);
+ tree avar = create_tmp_var (TREE_TYPE (var), NULL);
+ mark_addressable (avar);
+ if (OMP_CLAUSE_MAP_KIND (c) != OMP_CLAUSE_MAP_ALLOC
+ && OMP_CLAUSE_MAP_KIND (c) != OMP_CLAUSE_MAP_FROM)
+ gimplify_assign (avar, var, &ilist);
+ avar = build_fold_addr_expr (avar);
+ gimplify_assign (x, avar, &ilist);
+ if ((OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_FROM
+ || OMP_CLAUSE_MAP_KIND (c) == OMP_CLAUSE_MAP_TOFROM)
+ && !TYPE_READONLY (TREE_TYPE (var)))
+ {
+ x = build_sender_ref (ovar, ctx);
+ x = build_simple_mem_ref (x);
+ gimplify_assign (var, x, &olist);
+ }
+ }
+ else
+ {
+ var = build_fold_addr_expr (var);
+ gimplify_assign (x, var, &ilist);
+ }
+ }
+ tree s = OMP_CLAUSE_SIZE (c);
+ if (s == NULL_TREE)
+ s = TYPE_SIZE_UNIT (TREE_TYPE (ovar));
+ s = fold_convert (size_type_node, s);
+ tree purpose = size_int (map_idx++);
+ CONSTRUCTOR_APPEND_ELT (vsize, purpose, s);
+ if (TREE_CODE (s) != INTEGER_CST)
+ TREE_STATIC (TREE_VEC_ELT (t, 1)) = 0;
+
+ unsigned char tkind = 0;
+ switch (OMP_CLAUSE_CODE (c))
+ {
+ case OMP_CLAUSE_MAP:
+ tkind = OMP_CLAUSE_MAP_KIND (c);
+ break;
+ case OMP_CLAUSE_TO:
+ tkind = OMP_CLAUSE_MAP_TO;
+ break;
+ case OMP_CLAUSE_FROM:
+ tkind = OMP_CLAUSE_MAP_FROM;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+ unsigned int talign = TYPE_ALIGN_UNIT (TREE_TYPE (ovar));
+ if (DECL_P (ovar) && DECL_ALIGN_UNIT (ovar) > talign)
+ talign = DECL_ALIGN_UNIT (ovar);
+ talign = ceil_log2 (talign);
+ tkind |= talign << 3;
+ CONSTRUCTOR_APPEND_ELT (vkind, purpose,
+ build_int_cst (unsigned_char_type_node,
+ tkind));
+ if (nc && nc != c)
+ c = nc;
+ }
+
+ gcc_assert (map_idx == map_cnt);
+
+ DECL_INITIAL (TREE_VEC_ELT (t, 1))
+ = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, 1)), vsize);
+ DECL_INITIAL (TREE_VEC_ELT (t, 2))
+ = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, 2)), vkind);
+ if (!TREE_STATIC (TREE_VEC_ELT (t, 1)))
+ {
+ gimple_seq initlist = NULL;
+ force_gimple_operand (build1 (DECL_EXPR, void_type_node,
+ TREE_VEC_ELT (t, 1)),
+ &initlist, true, NULL_TREE);
+ gimple_seq_add_seq (&ilist, initlist);
+
+ tree clobber = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, 1)),
+ NULL);
+ TREE_THIS_VOLATILE (clobber) = 1;
+ gimple_seq_add_stmt (&olist,
+ gimple_build_assign (TREE_VEC_ELT (t, 1),
+ clobber));
+ }
+
+ tree clobber = build_constructor (ctx->record_type, NULL);
+ TREE_THIS_VOLATILE (clobber) = 1;
+ gimple_seq_add_stmt (&olist, gimple_build_assign (ctx->sender_decl,
+ clobber));
+ }
+
+ /* Once all the expansions are done, sequence all the different
+ fragments inside gimple_omp_body. */
+
+ new_body = NULL;
+
+ if (ctx->record_type && kind == GF_OMP_TARGET_KIND_REGION)
+ {
+ t = build_fold_addr_expr_loc (loc, ctx->sender_decl);
+ /* fixup_child_record_type might have changed receiver_decl's type. */
+ t = fold_convert_loc (loc, TREE_TYPE (ctx->receiver_decl), t);
+ gimple_seq_add_stmt (&new_body,
+ gimple_build_assign (ctx->receiver_decl, t));
+ }
+
+ if (kind == GF_OMP_TARGET_KIND_REGION)
{
- gimple_seq_add_stmt (&ilist, bind);
- gimple_seq_add_seq (&ilist, olist);
- bind = gimple_build_bind (NULL, ilist, NULL);
+ gimple_seq_add_seq (&new_body, tgt_body);
+ new_body = maybe_catch_exception (new_body);
+ }
+ else if (kind == GF_OMP_TARGET_KIND_DATA)
+ new_body = tgt_body;
+ if (kind != GF_OMP_TARGET_KIND_UPDATE)
+ {
+ gimple_seq_add_stmt (&new_body, gimple_build_omp_return (false));
+ gimple_omp_set_body (stmt, new_body);
}
+ bind = gimple_build_bind (NULL, NULL,
+ tgt_bind ? gimple_bind_block (tgt_bind)
+ : NULL_TREE);
gsi_replace (gsi_p, bind, true);
+ gimple_bind_add_seq (bind, ilist);
+ gimple_bind_add_stmt (bind, stmt);
+ gimple_bind_add_seq (bind, olist);
pop_gimplify_context (NULL);
}
+/* Expand code for an OpenMP teams directive. */
+
+static void
+lower_omp_teams (gimple_stmt_iterator *gsi_p, omp_context *ctx)
+{
+ gimple teams_stmt = gsi_stmt (*gsi_p);
+ push_gimplify_context ();
+
+ tree block = make_node (BLOCK);
+ gimple bind = gimple_build_bind (NULL, NULL, block);
+ gsi_replace (gsi_p, bind, true);
+ gimple_seq bind_body = NULL;
+ gimple_seq dlist = NULL;
+ gimple_seq olist = NULL;
+
+ tree num_teams = find_omp_clause (gimple_omp_teams_clauses (teams_stmt),
+ OMP_CLAUSE_NUM_TEAMS);
+ if (num_teams == NULL_TREE)
+ num_teams = build_int_cst (unsigned_type_node, 0);
+ else
+ {
+ num_teams = OMP_CLAUSE_NUM_TEAMS_EXPR (num_teams);
+ num_teams = fold_convert (unsigned_type_node, num_teams);
+ gimplify_expr (&num_teams, &bind_body, NULL, is_gimple_val, fb_rvalue);
+ }
+ tree thread_limit = find_omp_clause (gimple_omp_teams_clauses (teams_stmt),
+ OMP_CLAUSE_THREAD_LIMIT);
+ if (thread_limit == NULL_TREE)
+ thread_limit = build_int_cst (unsigned_type_node, 0);
+ else
+ {
+ thread_limit = OMP_CLAUSE_THREAD_LIMIT_EXPR (thread_limit);
+ thread_limit = fold_convert (unsigned_type_node, thread_limit);
+ gimplify_expr (&thread_limit, &bind_body, NULL, is_gimple_val,
+ fb_rvalue);
+ }
+
+ lower_rec_input_clauses (gimple_omp_teams_clauses (teams_stmt),
+ &bind_body, &dlist, ctx, NULL);
+ lower_omp (gimple_omp_body_ptr (teams_stmt), ctx);
+ lower_reduction_clauses (gimple_omp_teams_clauses (teams_stmt), &olist, ctx);
+ gimple_seq_add_stmt (&bind_body, teams_stmt);
+
+ location_t loc = gimple_location (teams_stmt);
+ tree decl = builtin_decl_explicit (BUILT_IN_GOMP_TEAMS);
+ gimple call = gimple_build_call (decl, 2, num_teams, thread_limit);
+ gimple_set_location (call, loc);
+ gimple_seq_add_stmt (&bind_body, call);
+
+ gimple_seq_add_seq (&bind_body, gimple_omp_body (teams_stmt));
+ gimple_omp_set_body (teams_stmt, NULL);
+ gimple_seq_add_seq (&bind_body, olist);
+ gimple_seq_add_seq (&bind_body, dlist);
+ gimple_seq_add_stmt (&bind_body, gimple_build_omp_return (true));
+ gimple_bind_set_body (bind, bind_body);
+
+ pop_gimplify_context (bind);
+
+ gimple_bind_append_vars (bind, ctx->block_vars);
+ BLOCK_VARS (block) = ctx->block_vars;
+ if (BLOCK_VARS (block))
+ TREE_USED (block) = 1;
+}
+
+
/* Callback for lower_omp_1. Return non-NULL if *tp needs to be
regimplified. If DATA is non-NULL, lower_omp_1 is outside
of OpenMP context, but with task_shared_vars set. */
gimple_regimplify_operands (stmt, gsi_p);
break;
case GIMPLE_CATCH:
- lower_omp (gimple_catch_handler (stmt), ctx);
+ lower_omp (gimple_catch_handler_ptr (stmt), ctx);
break;
case GIMPLE_EH_FILTER:
- lower_omp (gimple_eh_filter_failure (stmt), ctx);
+ lower_omp (gimple_eh_filter_failure_ptr (stmt), ctx);
break;
case GIMPLE_TRY:
- lower_omp (gimple_try_eval (stmt), ctx);
- lower_omp (gimple_try_cleanup (stmt), ctx);
+ lower_omp (gimple_try_eval_ptr (stmt), ctx);
+ lower_omp (gimple_try_cleanup_ptr (stmt), ctx);
+ break;
+ case GIMPLE_TRANSACTION:
+ lower_omp (gimple_transaction_body_ptr (stmt), ctx);
break;
case GIMPLE_BIND:
- lower_omp (gimple_bind_body (stmt), ctx);
+ lower_omp (gimple_bind_body_ptr (stmt), ctx);
break;
case GIMPLE_OMP_PARALLEL:
case GIMPLE_OMP_TASK:
ctx = maybe_lookup_ctx (stmt);
+ gcc_assert (ctx);
+ if (ctx->cancellable)
+ ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION);
lower_omp_taskreg (gsi_p, ctx);
break;
case GIMPLE_OMP_FOR:
ctx = maybe_lookup_ctx (stmt);
gcc_assert (ctx);
+ if (ctx->cancellable)
+ ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION);
lower_omp_for (gsi_p, ctx);
break;
case GIMPLE_OMP_SECTIONS:
ctx = maybe_lookup_ctx (stmt);
gcc_assert (ctx);
+ if (ctx->cancellable)
+ ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION);
lower_omp_sections (gsi_p, ctx);
break;
case GIMPLE_OMP_SINGLE:
gcc_assert (ctx);
lower_omp_master (gsi_p, ctx);
break;
+ case GIMPLE_OMP_TASKGROUP:
+ ctx = maybe_lookup_ctx (stmt);
+ gcc_assert (ctx);
+ lower_omp_taskgroup (gsi_p, ctx);
+ break;
case GIMPLE_OMP_ORDERED:
ctx = maybe_lookup_ctx (stmt);
gcc_assert (ctx);
lower_omp_regimplify_p, ctx ? NULL : &wi, NULL))
gimple_regimplify_operands (stmt, gsi_p);
break;
+ case GIMPLE_OMP_TARGET:
+ ctx = maybe_lookup_ctx (stmt);
+ gcc_assert (ctx);
+ lower_omp_target (gsi_p, ctx);
+ break;
+ case GIMPLE_OMP_TEAMS:
+ ctx = maybe_lookup_ctx (stmt);
+ gcc_assert (ctx);
+ lower_omp_teams (gsi_p, ctx);
+ break;
+ case GIMPLE_CALL:
+ tree fndecl;
+ fndecl = gimple_call_fndecl (stmt);
+ if (fndecl
+ && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL)
+ switch (DECL_FUNCTION_CODE (fndecl))
+ {
+ case BUILT_IN_GOMP_BARRIER:
+ if (ctx == NULL)
+ break;
+ /* FALLTHRU */
+ case BUILT_IN_GOMP_CANCEL:
+ case BUILT_IN_GOMP_CANCELLATION_POINT:
+ omp_context *cctx;
+ cctx = ctx;
+ if (gimple_code (cctx->stmt) == GIMPLE_OMP_SECTION)
+ cctx = cctx->outer;
+ gcc_assert (gimple_call_lhs (stmt) == NULL_TREE);
+ if (!cctx->cancellable)
+ {
+ if (DECL_FUNCTION_CODE (fndecl)
+ == BUILT_IN_GOMP_CANCELLATION_POINT)
+ {
+ stmt = gimple_build_nop ();
+ gsi_replace (gsi_p, stmt, false);
+ }
+ break;
+ }
+ tree lhs;
+ lhs = create_tmp_var (boolean_type_node, NULL);
+ if (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_GOMP_BARRIER)
+ {
+ fndecl = builtin_decl_explicit (BUILT_IN_GOMP_BARRIER_CANCEL);
+ gimple_call_set_fndecl (stmt, fndecl);
+ gimple_call_set_fntype (stmt, TREE_TYPE (fndecl));
+ }
+ gimple_call_set_lhs (stmt, lhs);
+ tree fallthru_label;
+ fallthru_label = create_artificial_label (UNKNOWN_LOCATION);
+ gimple g;
+ g = gimple_build_label (fallthru_label);
+ gsi_insert_after (gsi_p, g, GSI_SAME_STMT);
+ g = gimple_build_cond (NE_EXPR, lhs, boolean_false_node,
+ cctx->cancel_label, fallthru_label);
+ gsi_insert_after (gsi_p, g, GSI_SAME_STMT);
+ break;
+ default:
+ break;
+ }
+ /* FALLTHRU */
default:
if ((ctx || task_shared_vars)
&& walk_gimple_op (stmt, lower_omp_regimplify_p,
}
static void
-lower_omp (gimple_seq body, omp_context *ctx)
+lower_omp (gimple_seq *body, omp_context *ctx)
{
location_t saved_location = input_location;
- gimple_stmt_iterator gsi = gsi_start (body);
- for (gsi = gsi_start (body); !gsi_end_p (gsi); gsi_next (&gsi))
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start (*body); !gsi_end_p (gsi); gsi_next (&gsi))
lower_omp_1 (&gsi, ctx);
+ /* During gimplification, we have not always invoked fold_stmt
+ (gimplify.c:maybe_fold_stmt); call it now. */
+ if (target_nesting_level)
+ for (gsi = gsi_start (*body); !gsi_end_p (gsi); gsi_next (&gsi))
+ fold_stmt (&gsi);
input_location = saved_location;
}
\f
/* This pass always runs, to provide PROP_gimple_lomp.
But there is nothing to do unless -fopenmp is given. */
- if (flag_openmp == 0)
+ if (flag_openmp == 0 && flag_openmp_simd == 0 && flag_cilkplus == 0)
return 0;
all_contexts = splay_tree_new (splay_tree_compare_pointers, 0,
delete_omp_context);
body = gimple_body (current_function_decl);
- scan_omp (body, NULL);
+ scan_omp (&body, NULL);
gcc_assert (taskreg_nesting_level == 0);
if (all_contexts->root)
{
- struct gimplify_ctx gctx;
-
if (task_shared_vars)
- push_gimplify_context (&gctx);
- lower_omp (body, NULL);
+ push_gimplify_context ();
+ lower_omp (&body, NULL);
if (task_shared_vars)
pop_gimplify_context (NULL);
}
return 0;
}
-struct gimple_opt_pass pass_lower_omp =
-{
- {
- GIMPLE_PASS,
- "omplower", /* name */
- NULL, /* gate */
- execute_lower_omp, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- TV_NONE, /* tv_id */
- PROP_gimple_any, /* properties_required */
- PROP_gimple_lomp, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- 0 /* todo_flags_finish */
- }
+namespace {
+
+const pass_data pass_data_lower_omp =
+{
+ GIMPLE_PASS, /* type */
+ "omplower", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ false, /* has_gate */
+ true, /* has_execute */
+ TV_NONE, /* tv_id */
+ PROP_gimple_any, /* properties_required */
+ PROP_gimple_lomp, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0, /* todo_flags_finish */
};
+
+class pass_lower_omp : public gimple_opt_pass
+{
+public:
+ pass_lower_omp (gcc::context *ctxt)
+ : gimple_opt_pass (pass_data_lower_omp, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ unsigned int execute () { return execute_lower_omp (); }
+
+}; // class pass_lower_omp
+
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_lower_omp (gcc::context *ctxt)
+{
+ return new pass_lower_omp (ctxt);
+}
\f
/* The following is a utility to diagnose OpenMP structured block violations.
It is not part of the "omplower" pass, as that's invoked too late. It
error ("invalid entry to OpenMP structured block");
#endif
+ bool cilkplus_block = false;
+ if (flag_cilkplus)
+ {
+ if ((branch_ctx
+ && gimple_code (branch_ctx) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (branch_ctx) == GF_OMP_FOR_KIND_CILKSIMD)
+ || (label_ctx
+ && gimple_code (label_ctx) == GIMPLE_OMP_FOR
+ && gimple_omp_for_kind (label_ctx) == GF_OMP_FOR_KIND_CILKSIMD))
+ cilkplus_block = true;
+ }
+
/* If it's obvious we have an invalid entry, be specific about the error. */
if (branch_ctx == NULL)
- error ("invalid entry to OpenMP structured block");
+ {
+ if (cilkplus_block)
+ error ("invalid entry to Cilk Plus structured block");
+ else
+ error ("invalid entry to OpenMP structured block");
+ }
else
- /* Otherwise, be vague and lazy, but efficient. */
- error ("invalid branch to/from an OpenMP structured block");
+ {
+ /* Otherwise, be vague and lazy, but efficient. */
+ if (cilkplus_block)
+ error ("invalid branch to/from a Cilk Plus structured block");
+ else
+ error ("invalid branch to/from an OpenMP structured block");
+ }
gsi_replace (gsi_p, gimple_build_nop (), false);
return true;
case GIMPLE_OMP_MASTER:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_CRITICAL:
+ case GIMPLE_OMP_TARGET:
+ case GIMPLE_OMP_TEAMS:
+ case GIMPLE_OMP_TASKGROUP:
/* The minimal context here is just the current OMP construct. */
inner_context = stmt;
wi->info = inner_context;
case GIMPLE_OMP_MASTER:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_CRITICAL:
+ case GIMPLE_OMP_TARGET:
+ case GIMPLE_OMP_TEAMS:
+ case GIMPLE_OMP_TASKGROUP:
wi->info = stmt;
- walk_gimple_seq (gimple_omp_body (stmt), diagnose_sb_2, NULL, wi);
+ walk_gimple_seq_mod (gimple_omp_body_ptr (stmt), diagnose_sb_2, NULL, wi);
wi->info = context;
break;
wi->info = stmt;
/* gimple_omp_for_{index,initial,final} are all DECLs; no need to
walk them. */
- walk_gimple_seq (gimple_omp_for_pre_body (stmt),
- diagnose_sb_2, NULL, wi);
- walk_gimple_seq (gimple_omp_body (stmt), diagnose_sb_2, NULL, wi);
+ walk_gimple_seq_mod (gimple_omp_for_pre_body_ptr (stmt),
+ diagnose_sb_2, NULL, wi);
+ walk_gimple_seq_mod (gimple_omp_body_ptr (stmt), diagnose_sb_2, NULL, wi);
wi->info = context;
break;
return NULL_TREE;
}
-static unsigned int
-diagnose_omp_structured_block_errors (void)
+/* Called from tree-cfg.c::make_edges to create cfg edges for all GIMPLE_OMP
+ codes. */
+bool
+make_gimple_omp_edges (basic_block bb, struct omp_region **region,
+ int *region_idx)
+{
+ gimple last = last_stmt (bb);
+ enum gimple_code code = gimple_code (last);
+ struct omp_region *cur_region = *region;
+ bool fallthru = false;
+
+ switch (code)
+ {
+ case GIMPLE_OMP_PARALLEL:
+ case GIMPLE_OMP_TASK:
+ case GIMPLE_OMP_FOR:
+ case GIMPLE_OMP_SINGLE:
+ case GIMPLE_OMP_TEAMS:
+ case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_TASKGROUP:
+ case GIMPLE_OMP_ORDERED:
+ case GIMPLE_OMP_CRITICAL:
+ case GIMPLE_OMP_SECTION:
+ cur_region = new_omp_region (bb, code, cur_region);
+ fallthru = true;
+ break;
+
+ case GIMPLE_OMP_TARGET:
+ cur_region = new_omp_region (bb, code, cur_region);
+ fallthru = true;
+ if (gimple_omp_target_kind (last) == GF_OMP_TARGET_KIND_UPDATE)
+ cur_region = cur_region->outer;
+ break;
+
+ case GIMPLE_OMP_SECTIONS:
+ cur_region = new_omp_region (bb, code, cur_region);
+ fallthru = true;
+ break;
+
+ case GIMPLE_OMP_SECTIONS_SWITCH:
+ fallthru = false;
+ break;
+
+ case GIMPLE_OMP_ATOMIC_LOAD:
+ case GIMPLE_OMP_ATOMIC_STORE:
+ fallthru = true;
+ break;
+
+ case GIMPLE_OMP_RETURN:
+ /* In the case of a GIMPLE_OMP_SECTION, the edge will go
+ somewhere other than the next block. This will be
+ created later. */
+ cur_region->exit = bb;
+ fallthru = cur_region->type != GIMPLE_OMP_SECTION;
+ cur_region = cur_region->outer;
+ break;
+
+ case GIMPLE_OMP_CONTINUE:
+ cur_region->cont = bb;
+ switch (cur_region->type)
+ {
+ case GIMPLE_OMP_FOR:
+ /* Mark all GIMPLE_OMP_FOR and GIMPLE_OMP_CONTINUE
+ succs edges as abnormal to prevent splitting
+ them. */
+ single_succ_edge (cur_region->entry)->flags |= EDGE_ABNORMAL;
+ /* Make the loopback edge. */
+ make_edge (bb, single_succ (cur_region->entry),
+ EDGE_ABNORMAL);
+
+ /* Create an edge from GIMPLE_OMP_FOR to exit, which
+ corresponds to the case that the body of the loop
+ is not executed at all. */
+ make_edge (cur_region->entry, bb->next_bb, EDGE_ABNORMAL);
+ make_edge (bb, bb->next_bb, EDGE_FALLTHRU | EDGE_ABNORMAL);
+ fallthru = false;
+ break;
+
+ case GIMPLE_OMP_SECTIONS:
+ /* Wire up the edges into and out of the nested sections. */
+ {
+ basic_block switch_bb = single_succ (cur_region->entry);
+
+ struct omp_region *i;
+ for (i = cur_region->inner; i ; i = i->next)
+ {
+ gcc_assert (i->type == GIMPLE_OMP_SECTION);
+ make_edge (switch_bb, i->entry, 0);
+ make_edge (i->exit, bb, EDGE_FALLTHRU);
+ }
+
+ /* Make the loopback edge to the block with
+ GIMPLE_OMP_SECTIONS_SWITCH. */
+ make_edge (bb, switch_bb, 0);
+
+ /* Make the edge from the switch to exit. */
+ make_edge (switch_bb, bb->next_bb, 0);
+ fallthru = false;
+ }
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+
+ if (*region != cur_region)
+ {
+ *region = cur_region;
+ if (cur_region)
+ *region_idx = cur_region->entry->index;
+ else
+ *region_idx = 0;
+ }
+
+ return fallthru;
+}
+
+static unsigned int
+diagnose_omp_structured_block_errors (void)
{
struct walk_stmt_info wi;
gimple_seq body = gimple_body (current_function_decl);
memset (&wi, 0, sizeof (wi));
wi.want_locations = true;
- walk_gimple_seq (body, diagnose_sb_2, NULL, &wi);
+ walk_gimple_seq_mod (&body, diagnose_sb_2, NULL, &wi);
+
+ gimple_set_body (current_function_decl, body);
splay_tree_delete (all_labels);
all_labels = NULL;
static bool
gate_diagnose_omp_blocks (void)
{
- return flag_openmp != 0;
-}
-
-struct gimple_opt_pass pass_diagnose_omp_blocks =
-{
- {
- GIMPLE_PASS,
- "*diagnose_omp_blocks", /* name */
- gate_diagnose_omp_blocks, /* gate */
- diagnose_omp_structured_block_errors, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- TV_NONE, /* tv_id */
- PROP_gimple_any, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- 0, /* todo_flags_finish */
+ return flag_openmp || flag_cilkplus;
+}
+
+namespace {
+
+const pass_data pass_data_diagnose_omp_blocks =
+{
+ GIMPLE_PASS, /* type */
+ "*diagnose_omp_blocks", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ true, /* has_gate */
+ true, /* has_execute */
+ TV_NONE, /* tv_id */
+ PROP_gimple_any, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0, /* todo_flags_finish */
+};
+
+class pass_diagnose_omp_blocks : public gimple_opt_pass
+{
+public:
+ pass_diagnose_omp_blocks (gcc::context *ctxt)
+ : gimple_opt_pass (pass_data_diagnose_omp_blocks, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ bool gate () { return gate_diagnose_omp_blocks (); }
+ unsigned int execute () {
+ return diagnose_omp_structured_block_errors ();
}
+
+}; // class pass_diagnose_omp_blocks
+
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_diagnose_omp_blocks (gcc::context *ctxt)
+{
+ return new pass_diagnose_omp_blocks (ctxt);
+}
+\f
+/* SIMD clone supporting code. */
+
+/* Allocate a fresh `simd_clone' and return it. NARGS is the number
+ of arguments to reserve space for. */
+
+static struct cgraph_simd_clone *
+simd_clone_struct_alloc (int nargs)
+{
+ struct cgraph_simd_clone *clone_info;
+ size_t len = (sizeof (struct cgraph_simd_clone)
+ + nargs * sizeof (struct cgraph_simd_clone_arg));
+ clone_info = (struct cgraph_simd_clone *)
+ ggc_internal_cleared_alloc (len);
+ return clone_info;
+}
+
+/* Make a copy of the `struct cgraph_simd_clone' in FROM to TO. */
+
+static inline void
+simd_clone_struct_copy (struct cgraph_simd_clone *to,
+ struct cgraph_simd_clone *from)
+{
+ memcpy (to, from, (sizeof (struct cgraph_simd_clone)
+ + ((from->nargs - from->inbranch)
+ * sizeof (struct cgraph_simd_clone_arg))));
+}
+
+/* Return vector of parameter types of function FNDECL. This uses
+ TYPE_ARG_TYPES if available, otherwise falls back to types of
+ DECL_ARGUMENTS types. */
+
+vec<tree>
+simd_clone_vector_of_formal_parm_types (tree fndecl)
+{
+ if (TYPE_ARG_TYPES (TREE_TYPE (fndecl)))
+ return ipa_get_vector_of_formal_parm_types (TREE_TYPE (fndecl));
+ vec<tree> args = ipa_get_vector_of_formal_parms (fndecl);
+ unsigned int i;
+ tree arg;
+ FOR_EACH_VEC_ELT (args, i, arg)
+ args[i] = TREE_TYPE (args[i]);
+ return args;
+}
+
+/* Given a simd function in NODE, extract the simd specific
+ information from the OMP clauses passed in CLAUSES, and return
+ the struct cgraph_simd_clone * if it should be cloned. *INBRANCH_SPECIFIED
+ is set to TRUE if the `inbranch' or `notinbranch' clause specified,
+ otherwise set to FALSE. */
+
+static struct cgraph_simd_clone *
+simd_clone_clauses_extract (struct cgraph_node *node, tree clauses,
+ bool *inbranch_specified)
+{
+ vec<tree> args = simd_clone_vector_of_formal_parm_types (node->decl);
+ tree t;
+ int n;
+ *inbranch_specified = false;
+
+ n = args.length ();
+ if (n > 0 && args.last () == void_type_node)
+ n--;
+
+ /* To distinguish from an OpenMP simd clone, Cilk Plus functions to
+ be cloned have a distinctive artificial label in addition to "omp
+ declare simd". */
+ bool cilk_clone
+ = (flag_cilkplus
+ && lookup_attribute ("cilk simd function",
+ DECL_ATTRIBUTES (node->decl)));
+
+ /* Allocate one more than needed just in case this is an in-branch
+ clone which will require a mask argument. */
+ struct cgraph_simd_clone *clone_info = simd_clone_struct_alloc (n + 1);
+ clone_info->nargs = n;
+ clone_info->cilk_elemental = cilk_clone;
+
+ if (!clauses)
+ {
+ args.release ();
+ return clone_info;
+ }
+ clauses = TREE_VALUE (clauses);
+ if (!clauses || TREE_CODE (clauses) != OMP_CLAUSE)
+ return clone_info;
+
+ for (t = clauses; t; t = OMP_CLAUSE_CHAIN (t))
+ {
+ switch (OMP_CLAUSE_CODE (t))
+ {
+ case OMP_CLAUSE_INBRANCH:
+ clone_info->inbranch = 1;
+ *inbranch_specified = true;
+ break;
+ case OMP_CLAUSE_NOTINBRANCH:
+ clone_info->inbranch = 0;
+ *inbranch_specified = true;
+ break;
+ case OMP_CLAUSE_SIMDLEN:
+ clone_info->simdlen
+ = TREE_INT_CST_LOW (OMP_CLAUSE_SIMDLEN_EXPR (t));
+ break;
+ case OMP_CLAUSE_LINEAR:
+ {
+ tree decl = OMP_CLAUSE_DECL (t);
+ tree step = OMP_CLAUSE_LINEAR_STEP (t);
+ int argno = TREE_INT_CST_LOW (decl);
+ if (OMP_CLAUSE_LINEAR_VARIABLE_STRIDE (t))
+ {
+ clone_info->args[argno].arg_type
+ = SIMD_CLONE_ARG_TYPE_LINEAR_VARIABLE_STEP;
+ clone_info->args[argno].linear_step = tree_to_shwi (step);
+ gcc_assert (clone_info->args[argno].linear_step >= 0
+ && clone_info->args[argno].linear_step < n);
+ }
+ else
+ {
+ if (POINTER_TYPE_P (args[argno]))
+ step = fold_convert (ssizetype, step);
+ if (!tree_fits_shwi_p (step))
+ {
+ warning_at (OMP_CLAUSE_LOCATION (t), 0,
+ "ignoring large linear step");
+ args.release ();
+ return NULL;
+ }
+ else if (integer_zerop (step))
+ {
+ warning_at (OMP_CLAUSE_LOCATION (t), 0,
+ "ignoring zero linear step");
+ args.release ();
+ return NULL;
+ }
+ else
+ {
+ clone_info->args[argno].arg_type
+ = SIMD_CLONE_ARG_TYPE_LINEAR_CONSTANT_STEP;
+ clone_info->args[argno].linear_step = tree_to_shwi (step);
+ }
+ }
+ break;
+ }
+ case OMP_CLAUSE_UNIFORM:
+ {
+ tree decl = OMP_CLAUSE_DECL (t);
+ int argno = tree_to_uhwi (decl);
+ clone_info->args[argno].arg_type
+ = SIMD_CLONE_ARG_TYPE_UNIFORM;
+ break;
+ }
+ case OMP_CLAUSE_ALIGNED:
+ {
+ tree decl = OMP_CLAUSE_DECL (t);
+ int argno = tree_to_uhwi (decl);
+ clone_info->args[argno].alignment
+ = TREE_INT_CST_LOW (OMP_CLAUSE_ALIGNED_ALIGNMENT (t));
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ args.release ();
+ return clone_info;
+}
+
+/* Given a SIMD clone in NODE, calculate the characteristic data
+ type and return the coresponding type. The characteristic data
+ type is computed as described in the Intel Vector ABI. */
+
+static tree
+simd_clone_compute_base_data_type (struct cgraph_node *node,
+ struct cgraph_simd_clone *clone_info)
+{
+ tree type = integer_type_node;
+ tree fndecl = node->decl;
+
+ /* a) For non-void function, the characteristic data type is the
+ return type. */
+ if (TREE_CODE (TREE_TYPE (TREE_TYPE (fndecl))) != VOID_TYPE)
+ type = TREE_TYPE (TREE_TYPE (fndecl));
+
+ /* b) If the function has any non-uniform, non-linear parameters,
+ then the characteristic data type is the type of the first
+ such parameter. */
+ else
+ {
+ vec<tree> map = simd_clone_vector_of_formal_parm_types (fndecl);
+ for (unsigned int i = 0; i < clone_info->nargs; ++i)
+ if (clone_info->args[i].arg_type == SIMD_CLONE_ARG_TYPE_VECTOR)
+ {
+ type = map[i];
+ break;
+ }
+ map.release ();
+ }
+
+ /* c) If the characteristic data type determined by a) or b) above
+ is struct, union, or class type which is pass-by-value (except
+ for the type that maps to the built-in complex data type), the
+ characteristic data type is int. */
+ if (RECORD_OR_UNION_TYPE_P (type)
+ && !aggregate_value_p (type, NULL)
+ && TREE_CODE (type) != COMPLEX_TYPE)
+ return integer_type_node;
+
+ /* d) If none of the above three classes is applicable, the
+ characteristic data type is int. */
+
+ return type;
+
+ /* e) For Intel Xeon Phi native and offload compilation, if the
+ resulting characteristic data type is 8-bit or 16-bit integer
+ data type, the characteristic data type is int. */
+ /* Well, we don't handle Xeon Phi yet. */
+}
+
+static tree
+simd_clone_mangle (struct cgraph_node *node,
+ struct cgraph_simd_clone *clone_info)
+{
+ char vecsize_mangle = clone_info->vecsize_mangle;
+ char mask = clone_info->inbranch ? 'M' : 'N';
+ unsigned int simdlen = clone_info->simdlen;
+ unsigned int n;
+ pretty_printer pp;
+
+ gcc_assert (vecsize_mangle && simdlen);
+
+ pp_string (&pp, "_ZGV");
+ pp_character (&pp, vecsize_mangle);
+ pp_character (&pp, mask);
+ pp_decimal_int (&pp, simdlen);
+
+ for (n = 0; n < clone_info->nargs; ++n)
+ {
+ struct cgraph_simd_clone_arg arg = clone_info->args[n];
+
+ if (arg.arg_type == SIMD_CLONE_ARG_TYPE_UNIFORM)
+ pp_character (&pp, 'u');
+ else if (arg.arg_type == SIMD_CLONE_ARG_TYPE_LINEAR_CONSTANT_STEP)
+ {
+ gcc_assert (arg.linear_step != 0);
+ pp_character (&pp, 'l');
+ if (arg.linear_step > 1)
+ pp_unsigned_wide_integer (&pp, arg.linear_step);
+ else if (arg.linear_step < 0)
+ {
+ pp_character (&pp, 'n');
+ pp_unsigned_wide_integer (&pp, (-(unsigned HOST_WIDE_INT)
+ arg.linear_step));
+ }
+ }
+ else if (arg.arg_type == SIMD_CLONE_ARG_TYPE_LINEAR_VARIABLE_STEP)
+ {
+ pp_character (&pp, 's');
+ pp_unsigned_wide_integer (&pp, arg.linear_step);
+ }
+ else
+ pp_character (&pp, 'v');
+ if (arg.alignment)
+ {
+ pp_character (&pp, 'a');
+ pp_decimal_int (&pp, arg.alignment);
+ }
+ }
+
+ pp_underscore (&pp);
+ pp_string (&pp,
+ IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (node->decl)));
+ const char *str = pp_formatted_text (&pp);
+
+ /* If there already is a SIMD clone with the same mangled name, don't
+ add another one. This can happen e.g. for
+ #pragma omp declare simd
+ #pragma omp declare simd simdlen(8)
+ int foo (int, int);
+ if the simdlen is assumed to be 8 for the first one, etc. */
+ for (struct cgraph_node *clone = node->simd_clones; clone;
+ clone = clone->simdclone->next_clone)
+ if (strcmp (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (clone->decl)),
+ str) == 0)
+ return NULL_TREE;
+
+ return get_identifier (str);
+}
+
+/* Create a simd clone of OLD_NODE and return it. */
+
+static struct cgraph_node *
+simd_clone_create (struct cgraph_node *old_node)
+{
+ struct cgraph_node *new_node;
+ if (old_node->definition)
+ {
+ if (!cgraph_function_with_gimple_body_p (old_node))
+ return NULL;
+ cgraph_get_body (old_node);
+ new_node = cgraph_function_versioning (old_node, vNULL, NULL, NULL,
+ false, NULL, NULL, "simdclone");
+ }
+ else
+ {
+ tree old_decl = old_node->decl;
+ tree new_decl = copy_node (old_node->decl);
+ DECL_NAME (new_decl) = clone_function_name (old_decl, "simdclone");
+ SET_DECL_ASSEMBLER_NAME (new_decl, DECL_NAME (new_decl));
+ SET_DECL_RTL (new_decl, NULL);
+ DECL_STATIC_CONSTRUCTOR (new_decl) = 0;
+ DECL_STATIC_DESTRUCTOR (new_decl) = 0;
+ new_node
+ = cgraph_copy_node_for_versioning (old_node, new_decl, vNULL, NULL);
+ cgraph_call_function_insertion_hooks (new_node);
+ }
+ if (new_node == NULL)
+ return new_node;
+
+ TREE_PUBLIC (new_node->decl) = TREE_PUBLIC (old_node->decl);
+
+ /* The function cgraph_function_versioning () will force the new
+ symbol local. Undo this, and inherit external visability from
+ the old node. */
+ new_node->local.local = old_node->local.local;
+ new_node->externally_visible = old_node->externally_visible;
+
+ return new_node;
+}
+
+/* Adjust the return type of the given function to its appropriate
+ vector counterpart. Returns a simd array to be used throughout the
+ function as a return value. */
+
+static tree
+simd_clone_adjust_return_type (struct cgraph_node *node)
+{
+ tree fndecl = node->decl;
+ tree orig_rettype = TREE_TYPE (TREE_TYPE (fndecl));
+ unsigned int veclen;
+ tree t;
+
+ /* Adjust the function return type. */
+ if (orig_rettype == void_type_node)
+ return NULL_TREE;
+ TREE_TYPE (fndecl) = build_distinct_type_copy (TREE_TYPE (fndecl));
+ if (INTEGRAL_TYPE_P (TREE_TYPE (TREE_TYPE (fndecl)))
+ || POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (fndecl))))
+ veclen = node->simdclone->vecsize_int;
+ else
+ veclen = node->simdclone->vecsize_float;
+ veclen /= GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (TREE_TYPE (fndecl))));
+ if (veclen > node->simdclone->simdlen)
+ veclen = node->simdclone->simdlen;
+ if (veclen == node->simdclone->simdlen)
+ TREE_TYPE (TREE_TYPE (fndecl))
+ = build_vector_type (TREE_TYPE (TREE_TYPE (fndecl)),
+ node->simdclone->simdlen);
+ else
+ {
+ t = build_vector_type (TREE_TYPE (TREE_TYPE (fndecl)), veclen);
+ t = build_array_type_nelts (t, node->simdclone->simdlen / veclen);
+ TREE_TYPE (TREE_TYPE (fndecl)) = t;
+ }
+ if (!node->definition)
+ return NULL_TREE;
+
+ t = DECL_RESULT (fndecl);
+ /* Adjust the DECL_RESULT. */
+ gcc_assert (TREE_TYPE (t) != void_type_node);
+ TREE_TYPE (t) = TREE_TYPE (TREE_TYPE (fndecl));
+ relayout_decl (t);
+
+ tree atype = build_array_type_nelts (orig_rettype,
+ node->simdclone->simdlen);
+ if (veclen != node->simdclone->simdlen)
+ return build1 (VIEW_CONVERT_EXPR, atype, t);
+
+ /* Set up a SIMD array to use as the return value. */
+ tree retval = create_tmp_var_raw (atype, "retval");
+ gimple_add_tmp_var (retval);
+ return retval;
+}
+
+/* Each vector argument has a corresponding array to be used locally
+ as part of the eventual loop. Create such temporary array and
+ return it.
+
+ PREFIX is the prefix to be used for the temporary.
+
+ TYPE is the inner element type.
+
+ SIMDLEN is the number of elements. */
+
+static tree
+create_tmp_simd_array (const char *prefix, tree type, int simdlen)
+{
+ tree atype = build_array_type_nelts (type, simdlen);
+ tree avar = create_tmp_var_raw (atype, prefix);
+ gimple_add_tmp_var (avar);
+ return avar;
+}
+
+/* Modify the function argument types to their corresponding vector
+ counterparts if appropriate. Also, create one array for each simd
+ argument to be used locally when using the function arguments as
+ part of the loop.
+
+ NODE is the function whose arguments are to be adjusted.
+
+ Returns an adjustment vector that will be filled describing how the
+ argument types will be adjusted. */
+
+static ipa_parm_adjustment_vec
+simd_clone_adjust_argument_types (struct cgraph_node *node)
+{
+ vec<tree> args;
+ ipa_parm_adjustment_vec adjustments;
+
+ if (node->definition)
+ args = ipa_get_vector_of_formal_parms (node->decl);
+ else
+ args = simd_clone_vector_of_formal_parm_types (node->decl);
+ adjustments.create (args.length ());
+ unsigned i, j, veclen;
+ struct ipa_parm_adjustment adj;
+ for (i = 0; i < node->simdclone->nargs; ++i)
+ {
+ memset (&adj, 0, sizeof (adj));
+ tree parm = args[i];
+ tree parm_type = node->definition ? TREE_TYPE (parm) : parm;
+ adj.base_index = i;
+ adj.base = parm;
+
+ node->simdclone->args[i].orig_arg = node->definition ? parm : NULL_TREE;
+ node->simdclone->args[i].orig_type = parm_type;
+
+ if (node->simdclone->args[i].arg_type != SIMD_CLONE_ARG_TYPE_VECTOR)
+ {
+ /* No adjustment necessary for scalar arguments. */
+ adj.op = IPA_PARM_OP_COPY;
+ }
+ else
+ {
+ if (INTEGRAL_TYPE_P (parm_type) || POINTER_TYPE_P (parm_type))
+ veclen = node->simdclone->vecsize_int;
+ else
+ veclen = node->simdclone->vecsize_float;
+ veclen /= GET_MODE_BITSIZE (TYPE_MODE (parm_type));
+ if (veclen > node->simdclone->simdlen)
+ veclen = node->simdclone->simdlen;
+ adj.arg_prefix = "simd";
+ adj.type = build_vector_type (parm_type, veclen);
+ node->simdclone->args[i].vector_type = adj.type;
+ for (j = veclen; j < node->simdclone->simdlen; j += veclen)
+ {
+ adjustments.safe_push (adj);
+ if (j == veclen)
+ {
+ memset (&adj, 0, sizeof (adj));
+ adj.op = IPA_PARM_OP_NEW;
+ adj.arg_prefix = "simd";
+ adj.base_index = i;
+ adj.type = node->simdclone->args[i].vector_type;
+ }
+ }
+
+ if (node->definition)
+ node->simdclone->args[i].simd_array
+ = create_tmp_simd_array (IDENTIFIER_POINTER (DECL_NAME (parm)),
+ parm_type, node->simdclone->simdlen);
+ }
+ adjustments.safe_push (adj);
+ }
+
+ if (node->simdclone->inbranch)
+ {
+ tree base_type
+ = simd_clone_compute_base_data_type (node->simdclone->origin,
+ node->simdclone);
+
+ memset (&adj, 0, sizeof (adj));
+ adj.op = IPA_PARM_OP_NEW;
+ adj.arg_prefix = "mask";
+
+ adj.base_index = i;
+ if (INTEGRAL_TYPE_P (base_type) || POINTER_TYPE_P (base_type))
+ veclen = node->simdclone->vecsize_int;
+ else
+ veclen = node->simdclone->vecsize_float;
+ veclen /= GET_MODE_BITSIZE (TYPE_MODE (base_type));
+ if (veclen > node->simdclone->simdlen)
+ veclen = node->simdclone->simdlen;
+ adj.type = build_vector_type (base_type, veclen);
+ adjustments.safe_push (adj);
+
+ for (j = veclen; j < node->simdclone->simdlen; j += veclen)
+ adjustments.safe_push (adj);
+
+ /* We have previously allocated one extra entry for the mask. Use
+ it and fill it. */
+ struct cgraph_simd_clone *sc = node->simdclone;
+ sc->nargs++;
+ if (node->definition)
+ {
+ sc->args[i].orig_arg
+ = build_decl (UNKNOWN_LOCATION, PARM_DECL, NULL, base_type);
+ sc->args[i].simd_array
+ = create_tmp_simd_array ("mask", base_type, sc->simdlen);
+ }
+ sc->args[i].orig_type = base_type;
+ sc->args[i].arg_type = SIMD_CLONE_ARG_TYPE_MASK;
+ }
+
+ if (node->definition)
+ ipa_modify_formal_parameters (node->decl, adjustments);
+ else
+ {
+ tree new_arg_types = NULL_TREE, new_reversed;
+ bool last_parm_void = false;
+ if (args.length () > 0 && args.last () == void_type_node)
+ last_parm_void = true;
+
+ gcc_assert (TYPE_ARG_TYPES (TREE_TYPE (node->decl)));
+ j = adjustments.length ();
+ for (i = 0; i < j; i++)
+ {
+ struct ipa_parm_adjustment *adj = &adjustments[i];
+ tree ptype;
+ if (adj->op == IPA_PARM_OP_COPY)
+ ptype = args[adj->base_index];
+ else
+ ptype = adj->type;
+ new_arg_types = tree_cons (NULL_TREE, ptype, new_arg_types);
+ }
+ new_reversed = nreverse (new_arg_types);
+ if (last_parm_void)
+ {
+ if (new_reversed)
+ TREE_CHAIN (new_arg_types) = void_list_node;
+ else
+ new_reversed = void_list_node;
+ }
+
+ tree new_type = build_distinct_type_copy (TREE_TYPE (node->decl));
+ TYPE_ARG_TYPES (new_type) = new_reversed;
+ TREE_TYPE (node->decl) = new_type;
+
+ adjustments.release ();
+ }
+ args.release ();
+ return adjustments;
+}
+
+/* Initialize and copy the function arguments in NODE to their
+ corresponding local simd arrays. Returns a fresh gimple_seq with
+ the instruction sequence generated. */
+
+static gimple_seq
+simd_clone_init_simd_arrays (struct cgraph_node *node,
+ ipa_parm_adjustment_vec adjustments)
+{
+ gimple_seq seq = NULL;
+ unsigned i = 0, j = 0, k;
+
+ for (tree arg = DECL_ARGUMENTS (node->decl);
+ arg;
+ arg = DECL_CHAIN (arg), i++, j++)
+ {
+ if (adjustments[j].op == IPA_PARM_OP_COPY)
+ continue;
+
+ node->simdclone->args[i].vector_arg = arg;
+
+ tree array = node->simdclone->args[i].simd_array;
+ if (TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg)) == node->simdclone->simdlen)
+ {
+ tree ptype = build_pointer_type (TREE_TYPE (TREE_TYPE (array)));
+ tree ptr = build_fold_addr_expr (array);
+ tree t = build2 (MEM_REF, TREE_TYPE (arg), ptr,
+ build_int_cst (ptype, 0));
+ t = build2 (MODIFY_EXPR, TREE_TYPE (t), t, arg);
+ gimplify_and_add (t, &seq);
+ }
+ else
+ {
+ unsigned int simdlen = TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg));
+ tree ptype = build_pointer_type (TREE_TYPE (TREE_TYPE (array)));
+ for (k = 0; k < node->simdclone->simdlen; k += simdlen)
+ {
+ tree ptr = build_fold_addr_expr (array);
+ int elemsize;
+ if (k)
+ {
+ arg = DECL_CHAIN (arg);
+ j++;
+ }
+ elemsize
+ = GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (TREE_TYPE (arg))));
+ tree t = build2 (MEM_REF, TREE_TYPE (arg), ptr,
+ build_int_cst (ptype, k * elemsize));
+ t = build2 (MODIFY_EXPR, TREE_TYPE (t), t, arg);
+ gimplify_and_add (t, &seq);
+ }
+ }
+ }
+ return seq;
+}
+
+/* Callback info for ipa_simd_modify_stmt_ops below. */
+
+struct modify_stmt_info {
+ ipa_parm_adjustment_vec adjustments;
+ gimple stmt;
+ /* True if the parent statement was modified by
+ ipa_simd_modify_stmt_ops. */
+ bool modified;
+};
+
+/* Callback for walk_gimple_op.
+
+ Adjust operands from a given statement as specified in the
+ adjustments vector in the callback data. */
+
+static tree
+ipa_simd_modify_stmt_ops (tree *tp, int *walk_subtrees, void *data)
+{
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
+ if (!SSA_VAR_P (*tp))
+ {
+ /* Make sure we treat subtrees as a RHS. This makes sure that
+ when examining the `*foo' in *foo=x, the `foo' get treated as
+ a use properly. */
+ wi->is_lhs = false;
+ wi->val_only = true;
+ if (TYPE_P (*tp))
+ *walk_subtrees = 0;
+ return NULL_TREE;
+ }
+ struct modify_stmt_info *info = (struct modify_stmt_info *) wi->info;
+ struct ipa_parm_adjustment *cand
+ = ipa_get_adjustment_candidate (&tp, NULL, info->adjustments, true);
+ if (!cand)
+ return NULL_TREE;
+
+ tree t = *tp;
+ tree repl = make_ssa_name (TREE_TYPE (t), NULL);
+
+ gimple stmt;
+ gimple_stmt_iterator gsi = gsi_for_stmt (info->stmt);
+ if (wi->is_lhs)
+ {
+ stmt = gimple_build_assign (unshare_expr (cand->new_decl), repl);
+ gsi_insert_after (&gsi, stmt, GSI_SAME_STMT);
+ SSA_NAME_DEF_STMT (repl) = info->stmt;
+ }
+ else
+ {
+ /* You'd think we could skip the extra SSA variable when
+ wi->val_only=true, but we may have `*var' which will get
+ replaced into `*var_array[iter]' and will likely be something
+ not gimple. */
+ stmt = gimple_build_assign (repl, unshare_expr (cand->new_decl));
+ gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
+ }
+
+ if (!useless_type_conversion_p (TREE_TYPE (*tp), TREE_TYPE (repl)))
+ {
+ tree vce = build1 (VIEW_CONVERT_EXPR, TREE_TYPE (*tp), repl);
+ *tp = vce;
+ }
+ else
+ *tp = repl;
+
+ info->modified = true;
+ wi->is_lhs = false;
+ wi->val_only = true;
+ return NULL_TREE;
+}
+
+/* Traverse the function body and perform all modifications as
+ described in ADJUSTMENTS. At function return, ADJUSTMENTS will be
+ modified such that the replacement/reduction value will now be an
+ offset into the corresponding simd_array.
+
+ This function will replace all function argument uses with their
+ corresponding simd array elements, and ajust the return values
+ accordingly. */
+
+static void
+ipa_simd_modify_function_body (struct cgraph_node *node,
+ ipa_parm_adjustment_vec adjustments,
+ tree retval_array, tree iter)
+{
+ basic_block bb;
+ unsigned int i, j;
+
+ /* Re-use the adjustments array, but this time use it to replace
+ every function argument use to an offset into the corresponding
+ simd_array. */
+ for (i = 0, j = 0; i < node->simdclone->nargs; ++i, ++j)
+ {
+ if (!node->simdclone->args[i].vector_arg)
+ continue;
+
+ tree basetype = TREE_TYPE (node->simdclone->args[i].orig_arg);
+ tree vectype = TREE_TYPE (node->simdclone->args[i].vector_arg);
+ adjustments[j].new_decl
+ = build4 (ARRAY_REF,
+ basetype,
+ node->simdclone->args[i].simd_array,
+ iter,
+ NULL_TREE, NULL_TREE);
+ if (adjustments[j].op == IPA_PARM_OP_NONE
+ && TYPE_VECTOR_SUBPARTS (vectype) < node->simdclone->simdlen)
+ j += node->simdclone->simdlen / TYPE_VECTOR_SUBPARTS (vectype) - 1;
+ }
+
+ struct modify_stmt_info info;
+ info.adjustments = adjustments;
+
+ FOR_EACH_BB_FN (bb, DECL_STRUCT_FUNCTION (node->decl))
+ {
+ gimple_stmt_iterator gsi;
+
+ gsi = gsi_start_bb (bb);
+ while (!gsi_end_p (gsi))
+ {
+ gimple stmt = gsi_stmt (gsi);
+ info.stmt = stmt;
+ struct walk_stmt_info wi;
+
+ memset (&wi, 0, sizeof (wi));
+ info.modified = false;
+ wi.info = &info;
+ walk_gimple_op (stmt, ipa_simd_modify_stmt_ops, &wi);
+
+ if (gimple_code (stmt) == GIMPLE_RETURN)
+ {
+ tree retval = gimple_return_retval (stmt);
+ if (!retval)
+ {
+ gsi_remove (&gsi, true);
+ continue;
+ }
+
+ /* Replace `return foo' with `retval_array[iter] = foo'. */
+ tree ref = build4 (ARRAY_REF, TREE_TYPE (retval),
+ retval_array, iter, NULL, NULL);
+ stmt = gimple_build_assign (ref, retval);
+ gsi_replace (&gsi, stmt, true);
+ info.modified = true;
+ }
+
+ if (info.modified)
+ {
+ update_stmt (stmt);
+ if (maybe_clean_eh_stmt (stmt))
+ gimple_purge_dead_eh_edges (gimple_bb (stmt));
+ }
+ gsi_next (&gsi);
+ }
+ }
+}
+
+/* Adjust the argument types in NODE to their appropriate vector
+ counterparts. */
+
+static void
+simd_clone_adjust (struct cgraph_node *node)
+{
+ push_cfun (DECL_STRUCT_FUNCTION (node->decl));
+
+ targetm.simd_clone.adjust (node);
+
+ tree retval = simd_clone_adjust_return_type (node);
+ ipa_parm_adjustment_vec adjustments
+ = simd_clone_adjust_argument_types (node);
+
+ push_gimplify_context ();
+
+ gimple_seq seq = simd_clone_init_simd_arrays (node, adjustments);
+
+ /* Adjust all uses of vector arguments accordingly. Adjust all
+ return values accordingly. */
+ tree iter = create_tmp_var (unsigned_type_node, "iter");
+ tree iter1 = make_ssa_name (iter, NULL);
+ tree iter2 = make_ssa_name (iter, NULL);
+ ipa_simd_modify_function_body (node, adjustments, retval, iter1);
+
+ /* Initialize the iteration variable. */
+ basic_block entry_bb = single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun));
+ basic_block body_bb = split_block_after_labels (entry_bb)->dest;
+ gimple_stmt_iterator gsi = gsi_after_labels (entry_bb);
+ /* Insert the SIMD array and iv initialization at function
+ entry. */
+ gsi_insert_seq_before (&gsi, seq, GSI_NEW_STMT);
+
+ pop_gimplify_context (NULL);
+
+ /* Create a new BB right before the original exit BB, to hold the
+ iteration increment and the condition/branch. */
+ basic_block orig_exit = EDGE_PRED (EXIT_BLOCK_PTR_FOR_FN (cfun), 0)->src;
+ basic_block incr_bb = create_empty_bb (orig_exit);
+ /* The succ of orig_exit was EXIT_BLOCK_PTR_FOR_FN (cfun), with an empty
+ flag. Set it now to be a FALLTHRU_EDGE. */
+ gcc_assert (EDGE_COUNT (orig_exit->succs) == 1);
+ EDGE_SUCC (orig_exit, 0)->flags |= EDGE_FALLTHRU;
+ for (unsigned i = 0;
+ i < EDGE_COUNT (EXIT_BLOCK_PTR_FOR_FN (cfun)->preds); ++i)
+ {
+ edge e = EDGE_PRED (EXIT_BLOCK_PTR_FOR_FN (cfun), i);
+ redirect_edge_succ (e, incr_bb);
+ }
+ edge e = make_edge (incr_bb, EXIT_BLOCK_PTR_FOR_FN (cfun), 0);
+ e->probability = REG_BR_PROB_BASE;
+ gsi = gsi_last_bb (incr_bb);
+ gimple g = gimple_build_assign_with_ops (PLUS_EXPR, iter2, iter1,
+ build_int_cst (unsigned_type_node,
+ 1));
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+
+ /* Mostly annotate the loop for the vectorizer (the rest is done below). */
+ struct loop *loop = alloc_loop ();
+ cfun->has_force_vect_loops = true;
+ loop->safelen = node->simdclone->simdlen;
+ loop->force_vect = true;
+ loop->header = body_bb;
+ add_bb_to_loop (incr_bb, loop);
+
+ /* Branch around the body if the mask applies. */
+ if (node->simdclone->inbranch)
+ {
+ gimple_stmt_iterator gsi = gsi_last_bb (loop->header);
+ tree mask_array
+ = node->simdclone->args[node->simdclone->nargs - 1].simd_array;
+ tree mask = make_ssa_name (TREE_TYPE (TREE_TYPE (mask_array)), NULL);
+ tree aref = build4 (ARRAY_REF,
+ TREE_TYPE (TREE_TYPE (mask_array)),
+ mask_array, iter1,
+ NULL, NULL);
+ g = gimple_build_assign (mask, aref);
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+ int bitsize = GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (aref)));
+ if (!INTEGRAL_TYPE_P (TREE_TYPE (aref)))
+ {
+ aref = build1 (VIEW_CONVERT_EXPR,
+ build_nonstandard_integer_type (bitsize, 0), mask);
+ mask = make_ssa_name (TREE_TYPE (aref), NULL);
+ g = gimple_build_assign (mask, aref);
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+ }
+
+ g = gimple_build_cond (EQ_EXPR, mask, build_zero_cst (TREE_TYPE (mask)),
+ NULL, NULL);
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+ make_edge (loop->header, incr_bb, EDGE_TRUE_VALUE);
+ FALLTHRU_EDGE (loop->header)->flags = EDGE_FALSE_VALUE;
+ }
+
+ /* Generate the condition. */
+ g = gimple_build_cond (LT_EXPR,
+ iter2,
+ build_int_cst (unsigned_type_node,
+ node->simdclone->simdlen),
+ NULL, NULL);
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+ e = split_block (incr_bb, gsi_stmt (gsi));
+ basic_block latch_bb = e->dest;
+ basic_block new_exit_bb = e->dest;
+ new_exit_bb = split_block (latch_bb, NULL)->dest;
+ loop->latch = latch_bb;
+
+ redirect_edge_succ (FALLTHRU_EDGE (latch_bb), body_bb);
+
+ make_edge (incr_bb, new_exit_bb, EDGE_FALSE_VALUE);
+ /* The successor of incr_bb is already pointing to latch_bb; just
+ change the flags.
+ make_edge (incr_bb, latch_bb, EDGE_TRUE_VALUE); */
+ FALLTHRU_EDGE (incr_bb)->flags = EDGE_TRUE_VALUE;
+
+ gimple phi = create_phi_node (iter1, body_bb);
+ edge preheader_edge = find_edge (entry_bb, body_bb);
+ edge latch_edge = single_succ_edge (latch_bb);
+ add_phi_arg (phi, build_zero_cst (unsigned_type_node), preheader_edge,
+ UNKNOWN_LOCATION);
+ add_phi_arg (phi, iter2, latch_edge, UNKNOWN_LOCATION);
+
+ /* Generate the new return. */
+ gsi = gsi_last_bb (new_exit_bb);
+ if (retval
+ && TREE_CODE (retval) == VIEW_CONVERT_EXPR
+ && TREE_CODE (TREE_OPERAND (retval, 0)) == RESULT_DECL)
+ retval = TREE_OPERAND (retval, 0);
+ else if (retval)
+ {
+ retval = build1 (VIEW_CONVERT_EXPR,
+ TREE_TYPE (TREE_TYPE (node->decl)),
+ retval);
+ retval = force_gimple_operand_gsi (&gsi, retval, true, NULL,
+ false, GSI_CONTINUE_LINKING);
+ }
+ g = gimple_build_return (retval);
+ gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
+
+ /* Handle aligned clauses by replacing default defs of the aligned
+ uniform args with __builtin_assume_aligned (arg_N(D), alignment)
+ lhs. Handle linear by adding PHIs. */
+ for (unsigned i = 0; i < node->simdclone->nargs; i++)
+ if (node->simdclone->args[i].alignment
+ && node->simdclone->args[i].arg_type == SIMD_CLONE_ARG_TYPE_UNIFORM
+ && (node->simdclone->args[i].alignment
+ & (node->simdclone->args[i].alignment - 1)) == 0
+ && TREE_CODE (TREE_TYPE (node->simdclone->args[i].orig_arg))
+ == POINTER_TYPE)
+ {
+ unsigned int alignment = node->simdclone->args[i].alignment;
+ tree orig_arg = node->simdclone->args[i].orig_arg;
+ tree def = ssa_default_def (cfun, orig_arg);
+ if (def && !has_zero_uses (def))
+ {
+ tree fn = builtin_decl_explicit (BUILT_IN_ASSUME_ALIGNED);
+ gimple_seq seq = NULL;
+ bool need_cvt = false;
+ gimple call
+ = gimple_build_call (fn, 2, def, size_int (alignment));
+ g = call;
+ if (!useless_type_conversion_p (TREE_TYPE (orig_arg),
+ ptr_type_node))
+ need_cvt = true;
+ tree t = make_ssa_name (need_cvt ? ptr_type_node : orig_arg, NULL);
+ gimple_call_set_lhs (g, t);
+ gimple_seq_add_stmt_without_update (&seq, g);
+ if (need_cvt)
+ {
+ t = make_ssa_name (orig_arg, NULL);
+ g = gimple_build_assign_with_ops (NOP_EXPR, t,
+ gimple_call_lhs (g),
+ NULL_TREE);
+ gimple_seq_add_stmt_without_update (&seq, g);
+ }
+ gsi_insert_seq_on_edge_immediate
+ (single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)), seq);
+
+ entry_bb = single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun));
+ int freq = compute_call_stmt_bb_frequency (current_function_decl,
+ entry_bb);
+ cgraph_create_edge (node, cgraph_get_create_node (fn),
+ call, entry_bb->count, freq);
+
+ imm_use_iterator iter;
+ use_operand_p use_p;
+ gimple use_stmt;
+ tree repl = gimple_get_lhs (g);
+ FOR_EACH_IMM_USE_STMT (use_stmt, iter, def)
+ if (is_gimple_debug (use_stmt) || use_stmt == call)
+ continue;
+ else
+ FOR_EACH_IMM_USE_ON_STMT (use_p, iter)
+ SET_USE (use_p, repl);
+ }
+ }
+ else if (node->simdclone->args[i].arg_type
+ == SIMD_CLONE_ARG_TYPE_LINEAR_CONSTANT_STEP)
+ {
+ tree orig_arg = node->simdclone->args[i].orig_arg;
+ tree def = ssa_default_def (cfun, orig_arg);
+ gcc_assert (INTEGRAL_TYPE_P (TREE_TYPE (orig_arg))
+ || POINTER_TYPE_P (TREE_TYPE (orig_arg)));
+ if (def && !has_zero_uses (def))
+ {
+ iter1 = make_ssa_name (orig_arg, NULL);
+ iter2 = make_ssa_name (orig_arg, NULL);
+ phi = create_phi_node (iter1, body_bb);
+ add_phi_arg (phi, def, preheader_edge, UNKNOWN_LOCATION);
+ add_phi_arg (phi, iter2, latch_edge, UNKNOWN_LOCATION);
+ enum tree_code code = INTEGRAL_TYPE_P (TREE_TYPE (orig_arg))
+ ? PLUS_EXPR : POINTER_PLUS_EXPR;
+ tree addtype = INTEGRAL_TYPE_P (TREE_TYPE (orig_arg))
+ ? TREE_TYPE (orig_arg) : sizetype;
+ tree addcst
+ = build_int_cst (addtype, node->simdclone->args[i].linear_step);
+ g = gimple_build_assign_with_ops (code, iter2, iter1, addcst);
+ gsi = gsi_last_bb (incr_bb);
+ gsi_insert_before (&gsi, g, GSI_SAME_STMT);
+
+ imm_use_iterator iter;
+ use_operand_p use_p;
+ gimple use_stmt;
+ FOR_EACH_IMM_USE_STMT (use_stmt, iter, def)
+ if (use_stmt == phi)
+ continue;
+ else
+ FOR_EACH_IMM_USE_ON_STMT (use_p, iter)
+ SET_USE (use_p, iter1);
+ }
+ }
+
+ calculate_dominance_info (CDI_DOMINATORS);
+ add_loop (loop, loop->header->loop_father);
+ update_ssa (TODO_update_ssa);
+
+ pop_cfun ();
+}
+
+/* If the function in NODE is tagged as an elemental SIMD function,
+ create the appropriate SIMD clones. */
+
+static void
+expand_simd_clones (struct cgraph_node *node)
+{
+ tree attr = lookup_attribute ("omp declare simd",
+ DECL_ATTRIBUTES (node->decl));
+ if (attr == NULL_TREE
+ || node->global.inlined_to
+ || lookup_attribute ("noclone", DECL_ATTRIBUTES (node->decl)))
+ return;
+
+ /* Ignore
+ #pragma omp declare simd
+ extern int foo ();
+ in C, there we don't know the argument types at all. */
+ if (!node->definition
+ && TYPE_ARG_TYPES (TREE_TYPE (node->decl)) == NULL_TREE)
+ return;
+
+ do
+ {
+ /* Start with parsing the "omp declare simd" attribute(s). */
+ bool inbranch_clause_specified;
+ struct cgraph_simd_clone *clone_info
+ = simd_clone_clauses_extract (node, TREE_VALUE (attr),
+ &inbranch_clause_specified);
+ if (clone_info == NULL)
+ continue;
+
+ int orig_simdlen = clone_info->simdlen;
+ tree base_type = simd_clone_compute_base_data_type (node, clone_info);
+ /* The target can return 0 (no simd clones should be created),
+ 1 (just one ISA of simd clones should be created) or higher
+ count of ISA variants. In that case, clone_info is initialized
+ for the first ISA variant. */
+ int count
+ = targetm.simd_clone.compute_vecsize_and_simdlen (node, clone_info,
+ base_type, 0);
+ if (count == 0)
+ continue;
+
+ /* Loop over all COUNT ISA variants, and if !INBRANCH_CLAUSE_SPECIFIED,
+ also create one inbranch and one !inbranch clone of it. */
+ for (int i = 0; i < count * 2; i++)
+ {
+ struct cgraph_simd_clone *clone = clone_info;
+ if (inbranch_clause_specified && (i & 1) != 0)
+ continue;
+
+ if (i != 0)
+ {
+ clone = simd_clone_struct_alloc (clone_info->nargs
+ + ((i & 1) != 0));
+ simd_clone_struct_copy (clone, clone_info);
+ /* Undo changes targetm.simd_clone.compute_vecsize_and_simdlen
+ and simd_clone_adjust_argument_types did to the first
+ clone's info. */
+ clone->nargs -= clone_info->inbranch;
+ clone->simdlen = orig_simdlen;
+ /* And call the target hook again to get the right ISA. */
+ targetm.simd_clone.compute_vecsize_and_simdlen (node, clone,
+ base_type,
+ i / 2);
+ if ((i & 1) != 0)
+ clone->inbranch = 1;
+ }
+
+ /* simd_clone_mangle might fail if such a clone has been created
+ already. */
+ tree id = simd_clone_mangle (node, clone);
+ if (id == NULL_TREE)
+ continue;
+
+ /* Only when we are sure we want to create the clone actually
+ clone the function (or definitions) or create another
+ extern FUNCTION_DECL (for prototypes without definitions). */
+ struct cgraph_node *n = simd_clone_create (node);
+ if (n == NULL)
+ continue;
+
+ n->simdclone = clone;
+ clone->origin = node;
+ clone->next_clone = NULL;
+ if (node->simd_clones == NULL)
+ {
+ clone->prev_clone = n;
+ node->simd_clones = n;
+ }
+ else
+ {
+ clone->prev_clone = node->simd_clones->simdclone->prev_clone;
+ clone->prev_clone->simdclone->next_clone = n;
+ node->simd_clones->simdclone->prev_clone = n;
+ }
+ change_decl_assembler_name (n->decl, id);
+ /* And finally adjust the return type, parameters and for
+ definitions also function body. */
+ if (node->definition)
+ simd_clone_adjust (n);
+ else
+ {
+ simd_clone_adjust_return_type (n);
+ simd_clone_adjust_argument_types (n);
+ }
+ }
+ }
+ while ((attr = lookup_attribute ("omp declare simd", TREE_CHAIN (attr))));
+}
+
+/* Entry point for IPA simd clone creation pass. */
+
+static unsigned int
+ipa_omp_simd_clone (void)
+{
+ struct cgraph_node *node;
+ FOR_EACH_FUNCTION (node)
+ expand_simd_clones (node);
+ return 0;
+}
+
+namespace {
+
+const pass_data pass_data_omp_simd_clone =
+{
+ SIMPLE_IPA_PASS, /* type */
+ "simdclone", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ true, /* has_gate */
+ true, /* has_execute */
+ TV_NONE, /* tv_id */
+ ( PROP_ssa | PROP_cfg ), /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0, /* todo_flags_finish */
+};
+
+class pass_omp_simd_clone : public simple_ipa_opt_pass
+{
+public:
+ pass_omp_simd_clone(gcc::context *ctxt)
+ : simple_ipa_opt_pass(pass_data_omp_simd_clone, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ bool gate () { return ((flag_openmp || flag_openmp_simd
+ || flag_cilkplus || (in_lto_p && !flag_wpa))
+ && (targetm.simd_clone.compute_vecsize_and_simdlen
+ != NULL)); }
+ unsigned int execute () { return ipa_omp_simd_clone (); }
};
+} // anon namespace
+
+simple_ipa_opt_pass *
+make_pass_omp_simd_clone (gcc::context *ctxt)
+{
+ return new pass_omp_simd_clone (ctxt);
+}
+
#include "gt-omp-low.h"
projects / gcc.git / blobdiff