/* Conversion of SESE regions to Polyhedra.
- Copyright (C) 2009-2014 Free Software Foundation, Inc.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
Contributed by Sebastian Pop <sebastian.pop@amd.com>.
This file is part of GCC.
#include <isl/constraint.h>
#include <isl/aff.h>
#include <isl/val.h>
-/* For C++ linkage of C functions.
- Missing from isl/val_gmp.h in isl 0.12 versions.
- Appearing in isl/val_gmp.h in isl 0.13.
- To be removed when passing to isl 0.13. */
-#if defined(__cplusplus)
+
+/* Since ISL-0.13, the extern is in val_gmp.h. */
+#if !defined(HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE) && defined(__cplusplus)
extern "C" {
#endif
#include <isl/val_gmp.h>
-#if defined(__cplusplus)
+#if !defined(HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE) && defined(__cplusplus)
}
#endif
-#ifdef HAVE_cloog
-#include <cloog/cloog.h>
-#include <cloog/cloog.h>
-#include <cloog/isl/domain.h>
-#endif
#endif
#include "system.h"
#include "coretypes.h"
+#include "alias.h"
+#include "symtab.h"
+#include "options.h"
#include "tree.h"
+#include "fold-const.h"
+#include "predict.h"
+#include "tm.h"
+#include "hard-reg-set.h"
+#include "function.h"
+#include "dominance.h"
+#include "cfg.h"
#include "basic-block.h"
#include "tree-ssa-alias.h"
#include "internal-fn.h"
#include "gimple-expr.h"
-#include "is-a.h"
#include "gimple.h"
#include "gimple-iterator.h"
#include "gimplify.h"
#include "tree-ssa-propagate.h"
#ifdef HAVE_isl
+#include "rtl.h"
+#include "flags.h"
+#include "insn-config.h"
+#include "expmed.h"
+#include "dojump.h"
+#include "explow.h"
+#include "calls.h"
+#include "emit-rtl.h"
+#include "varasm.h"
+#include "stmt.h"
#include "expr.h"
#include "graphite-poly.h"
#include "graphite-sese-to-poly.h"
loop. */
static size_t
-phi_arg_in_outermost_loop (gimple phi)
+phi_arg_in_outermost_loop (gphi *phi)
{
loop_p loop = gimple_bb (phi)->loop_father;
size_t i, res = 0;
PSI by inserting on the loop ENTRY edge assignment "RES = INIT". */
static void
-remove_simple_copy_phi (gimple_stmt_iterator *psi)
+remove_simple_copy_phi (gphi_iterator *psi)
{
- gimple phi = gsi_stmt (*psi);
+ gphi *phi = psi->phi ();
tree res = gimple_phi_result (phi);
size_t entry = phi_arg_in_outermost_loop (phi);
tree init = gimple_phi_arg_def (phi, entry);
- gimple stmt = gimple_build_assign (res, init);
+ gassign *stmt = gimple_build_assign (res, init);
edge e = gimple_phi_arg_edge (phi, entry);
remove_phi_node (psi, false);
loop ENTRY edge the assignment RES = INIT. */
static void
-remove_invariant_phi (sese region, gimple_stmt_iterator *psi)
+remove_invariant_phi (sese region, gphi_iterator *psi)
{
- gimple phi = gsi_stmt (*psi);
+ gphi *phi = psi->phi ();
loop_p loop = loop_containing_stmt (phi);
tree res = gimple_phi_result (phi);
tree scev = scalar_evolution_in_region (region, loop, res);
size_t entry = phi_arg_in_outermost_loop (phi);
edge e = gimple_phi_arg_edge (phi, entry);
tree var;
- gimple stmt;
+ gassign *stmt;
gimple_seq stmts = NULL;
if (tree_contains_chrecs (scev, NULL))
/* Returns true when the phi node at PSI is of the form "a = phi (a, x)". */
static inline bool
-simple_copy_phi_p (gimple phi)
+simple_copy_phi_p (gphi *phi)
{
tree res;
be considered. */
static bool
-reduction_phi_p (sese region, gimple_stmt_iterator *psi)
+reduction_phi_p (sese region, gphi_iterator *psi)
{
loop_p loop;
- gimple phi = gsi_stmt (*psi);
+ gphi *phi = psi->phi ();
tree res = gimple_phi_result (phi);
loop = loop_containing_stmt (phi);
inequalities. */
static void
-add_condition_to_pbb (poly_bb_p pbb, gimple stmt, enum tree_code code)
+add_condition_to_pbb (poly_bb_p pbb, gcond *stmt, enum tree_code code)
{
isl_pw_aff *lhs = create_pw_aff_from_tree (pbb, gimple_cond_lhs (stmt));
isl_pw_aff *rhs = create_pw_aff_from_tree (pbb, gimple_cond_rhs (stmt));
{
case GIMPLE_COND:
{
- enum tree_code code = gimple_cond_code (stmt);
+ gcond *cond_stmt = as_a <gcond *> (stmt);
+ enum tree_code code = gimple_cond_code (cond_stmt);
/* The conditions for ELSE-branches are inverted. */
if (!GBB_CONDITION_CASES (gbb)[i])
code = invert_tree_comparison (code, false);
- add_condition_to_pbb (pbb, stmt, code);
+ add_condition_to_pbb (pbb, cond_stmt, code);
break;
}
edge between BB and its predecessor is not a loop exit edge, and
the last statement of the single predecessor is a COND_EXPR. */
-static gimple
+static gcond *
single_pred_cond_non_loop_exit (basic_block bb)
{
if (single_pred_p (bb))
stmt = last_stmt (pred);
if (stmt && gimple_code (stmt) == GIMPLE_COND)
- return stmt;
+ return as_a <gcond *> (stmt);
}
return NULL;
sese_dom_walker::before_dom_children (basic_block bb)
{
gimple_bb_p gbb;
- gimple stmt;
+ gcond *stmt;
if (!bb_in_sese_p (bb, m_region))
return;
/* Return a gsi at the position of the phi node STMT. */
-static gimple_stmt_iterator
-gsi_for_phi_node (gimple stmt)
+static gphi_iterator
+gsi_for_phi_node (gphi *stmt)
{
- gimple_stmt_iterator psi;
+ gphi_iterator psi;
basic_block bb = gimple_bb (stmt);
for (psi = gsi_start_phis (bb); !gsi_end_p (psi); gsi_next (&psi))
- if (stmt == gsi_stmt (psi))
+ if (stmt == psi.phi ())
return psi;
gcc_unreachable ();
gimple_seq stmts;
gimple_stmt_iterator gsi;
tree var = force_gimple_operand (expr, &stmts, true, NULL_TREE);
- gimple stmt = gimple_build_assign (unshare_expr (res), var);
+ gassign *stmt = gimple_build_assign (unshare_expr (res), var);
auto_vec<gimple, 3> x;
gimple_seq_add_stmt (&stmts, stmt);
dimension array for it. */
static void
-rewrite_phi_out_of_ssa (scop_p scop, gimple_stmt_iterator *psi)
+rewrite_phi_out_of_ssa (scop_p scop, gphi_iterator *psi)
{
size_t i;
- gimple phi = gsi_stmt (*psi);
+ gphi *phi = psi->phi ();
basic_block bb = gimple_bb (phi);
tree res = gimple_phi_result (phi);
tree zero_dim_array = create_zero_dim_array (res, "phi_out_of_ssa");
form "x = phi (y, y, ..., y)" to "x = y". */
static void
-rewrite_degenerate_phi (gimple_stmt_iterator *psi)
+rewrite_degenerate_phi (gphi_iterator *psi)
{
tree rhs;
gimple stmt;
gimple_stmt_iterator gsi;
- gimple phi = gsi_stmt (*psi);
+ gphi *phi = psi->phi ();
tree res = gimple_phi_result (phi);
basic_block bb;
rewrite_reductions_out_of_ssa (scop_p scop)
{
basic_block bb;
- gimple_stmt_iterator psi;
+ gphi_iterator psi;
sese region = SCOP_REGION (scop);
FOR_EACH_BB_FN (bb, cfun)
if (bb_in_sese_p (bb, region))
for (psi = gsi_start_phis (bb); !gsi_end_p (psi);)
{
- gimple phi = gsi_stmt (psi);
+ gphi *phi = psi.phi ();
if (virtual_operand_p (gimple_phi_result (phi)))
{
gcc_assert (gimple_code (use_stmt) != GIMPLE_PHI);
- name = copy_ssa_name (def, NULL);
+ name = copy_ssa_name (def);
name_stmt = gimple_build_assign (name, zero_dim_array);
gimple_assign_set_lhs (name_stmt, name);
static void
handle_scalar_deps_crossing_scop_limits (scop_p scop, tree def, gimple stmt)
{
- tree var = create_tmp_reg (TREE_TYPE (def), NULL);
+ tree var = create_tmp_reg (TREE_TYPE (def));
tree new_name = make_ssa_name (var, stmt);
bool needs_copy = false;
use_operand_p use_p;
if (gimple_code (use_stmt) == GIMPLE_PHI
&& (res = true))
{
- gimple_stmt_iterator psi = gsi_for_stmt (use_stmt);
+ gphi_iterator psi = gsi_start_phis (gimple_bb (use_stmt));
if (scalar_close_phi_node_p (gsi_stmt (psi)))
rewrite_close_phi_out_of_ssa (scop, &psi);
/* Returns true when PHI contains an argument ARG. */
static bool
-phi_contains_arg (gimple phi, tree arg)
+phi_contains_arg (gphi *phi, tree arg)
{
size_t i;
/* Return a loop phi node that corresponds to a reduction containing LHS. */
-static gimple
+static gphi *
follow_ssa_with_commutative_ops (tree arg, tree lhs)
{
gimple stmt;
|| gimple_code (stmt) == GIMPLE_CALL)
return NULL;
- if (gimple_code (stmt) == GIMPLE_PHI)
+ if (gphi *phi = dyn_cast <gphi *> (stmt))
{
- if (phi_contains_arg (stmt, lhs))
- return stmt;
+ if (phi_contains_arg (phi, lhs))
+ return phi;
return NULL;
}
if (is_reduction_operation_p (stmt))
{
- gimple res = follow_ssa_with_commutative_ops (gimple_assign_rhs1 (stmt), lhs);
+ gphi *res
+ = follow_ssa_with_commutative_ops (gimple_assign_rhs1 (stmt), lhs);
return res ? res :
follow_ssa_with_commutative_ops (gimple_assign_rhs2 (stmt), lhs);
/* Detect commutative and associative scalar reductions starting at
the STMT. Return the phi node of the reduction cycle, or NULL. */
-static gimple
+static gphi *
detect_commutative_reduction_arg (tree lhs, gimple stmt, tree arg,
vec<gimple> *in,
vec<gimple> *out)
{
- gimple phi = follow_ssa_with_commutative_ops (arg, lhs);
+ gphi *phi = follow_ssa_with_commutative_ops (arg, lhs);
if (!phi)
return NULL;
/* Detect commutative and associative scalar reductions starting at
STMT. Return the phi node of the reduction cycle, or NULL. */
-static gimple
+static gphi *
detect_commutative_reduction_assign (gimple stmt, vec<gimple> *in,
vec<gimple> *out)
{
if (is_reduction_operation_p (stmt))
{
- gimple res = detect_commutative_reduction_arg (lhs, stmt,
- gimple_assign_rhs1 (stmt),
- in, out);
+ gphi *res = detect_commutative_reduction_arg (lhs, stmt,
+ gimple_assign_rhs1 (stmt),
+ in, out);
return res ? res
: detect_commutative_reduction_arg (lhs, stmt,
gimple_assign_rhs2 (stmt),
/* Return a loop phi node that corresponds to a reduction containing LHS. */
-static gimple
+static gphi *
follow_inital_value_to_phi (tree arg, tree lhs)
{
gimple stmt;
stmt = SSA_NAME_DEF_STMT (arg);
- if (gimple_code (stmt) == GIMPLE_PHI
- && phi_contains_arg (stmt, lhs))
- return stmt;
+ if (gphi *phi = dyn_cast <gphi *> (stmt))
+ if (phi_contains_arg (phi, lhs))
+ return phi;
return NULL;
}
from outside the loop. */
static edge
-edge_initial_value_for_loop_phi (gimple phi)
+edge_initial_value_for_loop_phi (gphi *phi)
{
size_t i;
from outside the loop. */
static tree
-initial_value_for_loop_phi (gimple phi)
+initial_value_for_loop_phi (gphi *phi)
{
size_t i;
the SCOP starting at the loop closed phi node STMT. Return the phi
node of the reduction cycle, or NULL. */
-static gimple
+static gphi *
detect_commutative_reduction (scop_p scop, gimple stmt, vec<gimple> *in,
vec<gimple> *out)
{
if (scalar_close_phi_node_p (stmt))
{
- gimple def, loop_phi, phi, close_phi = stmt;
+ gimple def;
+ gphi *loop_phi, *phi, *close_phi = as_a <gphi *> (stmt);
tree init, lhs, arg = gimple_phi_arg_def (close_phi, 0);
if (TREE_CODE (arg) != SSA_NAME)
static void
translate_scalar_reduction_to_array_for_stmt (scop_p scop, tree red,
- gimple stmt, gimple loop_phi)
+ gimple stmt, gphi *loop_phi)
{
tree res = gimple_phi_result (loop_phi);
- gimple assign = gimple_build_assign (res, unshare_expr (red));
+ gassign *assign = gimple_build_assign (res, unshare_expr (red));
gimple_stmt_iterator gsi;
insert_stmts (scop, assign, NULL, gsi_after_labels (gimple_bb (loop_phi)));
the PHI_RESULT. */
static void
-remove_phi (gimple phi)
+remove_phi (gphi *phi)
{
imm_use_iterator imm_iter;
tree def;
NULL_TREE. */
static tree
-close_phi_written_to_memory (gimple close_phi)
+close_phi_written_to_memory (gphi *close_phi)
{
imm_use_iterator imm_iter;
use_operand_p use_p;
vec<gimple> in,
vec<gimple> out)
{
- gimple loop_phi;
+ gimple loop_stmt;
unsigned int i = out.length () - 1;
- tree red = close_phi_written_to_memory (out[i]);
+ tree red = close_phi_written_to_memory (as_a <gphi *> (out[i]));
- FOR_EACH_VEC_ELT (in, i, loop_phi)
+ FOR_EACH_VEC_ELT (in, i, loop_stmt)
{
- gimple close_phi = out[i];
+ gimple close_stmt = out[i];
if (i == 0)
{
- gimple stmt = loop_phi;
- basic_block bb = split_reduction_stmt (scop, stmt);
+ basic_block bb = split_reduction_stmt (scop, loop_stmt);
poly_bb_p pbb = pbb_from_bb (bb);
PBB_IS_REDUCTION (pbb) = true;
- gcc_assert (close_phi == loop_phi);
+ gcc_assert (close_stmt == loop_stmt);
if (!red)
red = create_zero_dim_array
- (gimple_assign_lhs (stmt), "Commutative_Associative_Reduction");
+ (gimple_assign_lhs (loop_stmt), "Commutative_Associative_Reduction");
- translate_scalar_reduction_to_array_for_stmt (scop, red, stmt, in[1]);
+ translate_scalar_reduction_to_array_for_stmt (scop, red, loop_stmt,
+ as_a <gphi *> (in[1]));
continue;
}
+ gphi *loop_phi = as_a <gphi *> (loop_stmt);
+ gphi *close_phi = as_a <gphi *> (close_stmt);
+
if (i == in.length () - 1)
{
insert_out_of_ssa_copy (scop, gimple_phi_result (close_phi),
static bool
rewrite_commutative_reductions_out_of_ssa_close_phi (scop_p scop,
- gimple close_phi)
+ gphi *close_phi)
{
bool res;
auto_vec<gimple, 10> in;
rewrite_commutative_reductions_out_of_ssa_loop (scop_p scop,
loop_p loop)
{
- gimple_stmt_iterator gsi;
+ gphi_iterator gsi;
edge exit = single_exit (loop);
tree res;
bool changed = false;
return false;
for (gsi = gsi_start_phis (exit->dest); !gsi_end_p (gsi); gsi_next (&gsi))
- if ((res = gimple_phi_result (gsi_stmt (gsi)))
+ if ((res = gimple_phi_result (gsi.phi ()))
&& !virtual_operand_p (res)
&& !scev_analyzable_p (res, SCOP_REGION (scop)))
changed |= rewrite_commutative_reductions_out_of_ssa_close_phi
- (scop, gsi_stmt (gsi));
+ (scop, gsi.phi ());
return changed;
}
scop_ivs_can_be_represented (scop_p scop)
{
loop_p loop;
- gimple_stmt_iterator psi;
+ gphi_iterator psi;
bool result = true;
FOR_EACH_LOOP (loop, 0)
for (psi = gsi_start_phis (loop->header);
!gsi_end_p (psi); gsi_next (&psi))
{
- gimple phi = gsi_stmt (psi);
+ gphi *phi = psi.phi ();
tree res = PHI_RESULT (phi);
tree type = TREE_TYPE (res);
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