/* Calculate branch probabilities, and basic block execution counts.
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2013 Free Software Foundation, Inc.
Contributed by James E. Wilson, UC Berkeley/Cygnus Support;
based on some ideas from Dain Samples of UC Berkeley.
Further mangling by Bob Manson, Cygnus Support.
#include "system.h"
#include "coretypes.h"
#include "tm.h"
-#include "rtl.h"
#include "flags.h"
-#include "output.h"
-#include "regs.h"
-#include "expr.h"
#include "function.h"
-#include "toplev.h"
+#include "basic-block.h"
+#include "diagnostic-core.h"
#include "coverage.h"
#include "tree.h"
-#include "tree-flow.h"
-#include "tree-dump.h"
+#include "gimple.h"
+#include "gimplify.h"
+#include "gimple-iterator.h"
+#include "gimplify-me.h"
+#include "gimple-ssa.h"
+#include "cgraph.h"
+#include "tree-cfg.h"
+#include "tree-ssanames.h"
+#include "tree-into-ssa.h"
#include "tree-pass.h"
-#include "timevar.h"
#include "value-prof.h"
-#include "ggc.h"
-#include "cgraph.h"
+#include "profile.h"
+#include "target.h"
+#include "tree-cfgcleanup.h"
+#include "tree-nested.h"
static GTY(()) tree gcov_type_node;
-static GTY(()) tree gcov_type_tmp_var;
static GTY(()) tree tree_interval_profiler_fn;
static GTY(()) tree tree_pow2_profiler_fn;
static GTY(()) tree tree_one_value_profiler_fn;
static GTY(()) tree tree_indirect_call_profiler_fn;
+static GTY(()) tree tree_time_profiler_fn;
static GTY(()) tree tree_average_profiler_fn;
static GTY(()) tree tree_ior_profiler_fn;
-\f
+
static GTY(()) tree ic_void_ptr_var;
static GTY(()) tree ic_gcov_type_ptr_var;
/* Do initialization work for the edge profiler. */
/* Add code:
- static gcov* __gcov_indirect_call_counters; // pointer to actual counter
- static void* __gcov_indirect_call_callee; // actual callee address
+ __thread gcov* __gcov_indirect_call_counters; // pointer to actual counter
+ __thread void* __gcov_indirect_call_callee; // actual callee address
+ __thread int __gcov_function_counter; // time profiler function counter
*/
static void
-tree_init_ic_make_global_vars (void)
+init_ic_make_global_vars (void)
{
tree gcov_type_ptr;
ptr_void = build_pointer_type (void_type_node);
- ic_void_ptr_var
- = build_decl (UNKNOWN_LOCATION, VAR_DECL,
- get_identifier ("__gcov_indirect_call_callee"),
- ptr_void);
+ /* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
+ if (flag_lto)
+ {
+ ic_void_ptr_var
+ = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier ("__gcov_indirect_call_callee_ltopriv"),
+ ptr_void);
+ TREE_PUBLIC (ic_void_ptr_var) = 1;
+ DECL_COMMON (ic_void_ptr_var) = 1;
+ DECL_VISIBILITY (ic_void_ptr_var) = VISIBILITY_HIDDEN;
+ DECL_VISIBILITY_SPECIFIED (ic_void_ptr_var) = true;
+ }
+ else
+ {
+ ic_void_ptr_var
+ = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier ("__gcov_indirect_call_callee"),
+ ptr_void);
+ TREE_PUBLIC (ic_void_ptr_var) = 1;
+ DECL_EXTERNAL (ic_void_ptr_var) = 1;
+ }
TREE_STATIC (ic_void_ptr_var) = 1;
- TREE_PUBLIC (ic_void_ptr_var) = 0;
DECL_ARTIFICIAL (ic_void_ptr_var) = 1;
DECL_INITIAL (ic_void_ptr_var) = NULL;
+ if (targetm.have_tls)
+ DECL_TLS_MODEL (ic_void_ptr_var) =
+ decl_default_tls_model (ic_void_ptr_var);
+
varpool_finalize_decl (ic_void_ptr_var);
gcov_type_ptr = build_pointer_type (get_gcov_type ());
- ic_gcov_type_ptr_var
- = build_decl (UNKNOWN_LOCATION, VAR_DECL,
- get_identifier ("__gcov_indirect_call_counters"),
- gcov_type_ptr);
+ /* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
+ if (flag_lto)
+ {
+ ic_gcov_type_ptr_var
+ = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier ("__gcov_indirect_call_counters_ltopriv"),
+ gcov_type_ptr);
+ TREE_PUBLIC (ic_gcov_type_ptr_var) = 1;
+ DECL_COMMON (ic_gcov_type_ptr_var) = 1;
+ DECL_VISIBILITY (ic_gcov_type_ptr_var) = VISIBILITY_HIDDEN;
+ DECL_VISIBILITY_SPECIFIED (ic_gcov_type_ptr_var) = true;
+ }
+ else
+ {
+ ic_gcov_type_ptr_var
+ = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier ("__gcov_indirect_call_counters"),
+ gcov_type_ptr);
+ TREE_PUBLIC (ic_gcov_type_ptr_var) = 1;
+ DECL_EXTERNAL (ic_gcov_type_ptr_var) = 1;
+ }
TREE_STATIC (ic_gcov_type_ptr_var) = 1;
- TREE_PUBLIC (ic_gcov_type_ptr_var) = 0;
DECL_ARTIFICIAL (ic_gcov_type_ptr_var) = 1;
DECL_INITIAL (ic_gcov_type_ptr_var) = NULL;
+ if (targetm.have_tls)
+ DECL_TLS_MODEL (ic_gcov_type_ptr_var) =
+ decl_default_tls_model (ic_gcov_type_ptr_var);
+
varpool_finalize_decl (ic_gcov_type_ptr_var);
}
-static void
-tree_init_edge_profiler (void)
+/* Create the type and function decls for the interface with gcov. */
+
+void
+gimple_init_edge_profiler (void)
{
tree interval_profiler_fn_type;
tree pow2_profiler_fn_type;
tree gcov_type_ptr;
tree ic_profiler_fn_type;
tree average_profiler_fn_type;
+ tree time_profiler_fn_type;
if (!gcov_type_node)
{
tree_interval_profiler_fn
= build_fn_decl ("__gcov_interval_profiler",
interval_profiler_fn_type);
+ TREE_NOTHROW (tree_interval_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_interval_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_interval_profiler_fn));
/* void (*) (gcov_type *, gcov_type) */
pow2_profiler_fn_type
NULL_TREE);
tree_pow2_profiler_fn = build_fn_decl ("__gcov_pow2_profiler",
pow2_profiler_fn_type);
+ TREE_NOTHROW (tree_pow2_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_pow2_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_pow2_profiler_fn));
/* void (*) (gcov_type *, gcov_type) */
one_value_profiler_fn_type
tree_one_value_profiler_fn
= build_fn_decl ("__gcov_one_value_profiler",
one_value_profiler_fn_type);
-
- tree_init_ic_make_global_vars ();
-
- /* void (*) (gcov_type *, gcov_type, void *, void *) */
- ic_profiler_fn_type
+ TREE_NOTHROW (tree_one_value_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_one_value_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_one_value_profiler_fn));
+
+ init_ic_make_global_vars ();
+
+ /* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
+ if (flag_lto)
+ {
+ /* void (*) (gcov_type, void *) */
+ ic_profiler_fn_type
+ = build_function_type_list (void_type_node,
+ gcov_type_ptr, gcov_type_node,
+ ptr_void, ptr_void,
+ NULL_TREE);
+ tree_indirect_call_profiler_fn
+ = build_fn_decl ("__gcov_indirect_call_profiler",
+ ic_profiler_fn_type);
+ }
+ else
+ {
+ /* void (*) (gcov_type, void *) */
+ ic_profiler_fn_type
+ = build_function_type_list (void_type_node,
+ gcov_type_node,
+ ptr_void,
+ NULL_TREE);
+ tree_indirect_call_profiler_fn
+ = build_fn_decl ("__gcov_indirect_call_profiler_v2",
+ ic_profiler_fn_type);
+ }
+ TREE_NOTHROW (tree_indirect_call_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_indirect_call_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_indirect_call_profiler_fn));
+
+ /* void (*) (gcov_type *, gcov_type, void *) */
+ time_profiler_fn_type
= build_function_type_list (void_type_node,
- gcov_type_ptr, gcov_type_node,
- ptr_void,
- ptr_void, NULL_TREE);
- tree_indirect_call_profiler_fn
- = build_fn_decl ("__gcov_indirect_call_profiler",
- ic_profiler_fn_type);
+ gcov_type_ptr, NULL_TREE);
+ tree_time_profiler_fn
+ = build_fn_decl ("__gcov_time_profiler",
+ time_profiler_fn_type);
+ TREE_NOTHROW (tree_time_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_time_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_time_profiler_fn));
+
/* void (*) (gcov_type *, gcov_type) */
average_profiler_fn_type
= build_function_type_list (void_type_node,
tree_average_profiler_fn
= build_fn_decl ("__gcov_average_profiler",
average_profiler_fn_type);
+ TREE_NOTHROW (tree_average_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_average_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_average_profiler_fn));
tree_ior_profiler_fn
= build_fn_decl ("__gcov_ior_profiler",
average_profiler_fn_type);
+ TREE_NOTHROW (tree_ior_profiler_fn) = 1;
+ DECL_ATTRIBUTES (tree_ior_profiler_fn)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (tree_ior_profiler_fn));
+
/* LTO streamer needs assembler names. Because we create these decls
late, we need to initialize them by hand. */
DECL_ASSEMBLER_NAME (tree_interval_profiler_fn);
DECL_ASSEMBLER_NAME (tree_pow2_profiler_fn);
DECL_ASSEMBLER_NAME (tree_one_value_profiler_fn);
DECL_ASSEMBLER_NAME (tree_indirect_call_profiler_fn);
+ DECL_ASSEMBLER_NAME (tree_time_profiler_fn);
DECL_ASSEMBLER_NAME (tree_average_profiler_fn);
DECL_ASSEMBLER_NAME (tree_ior_profiler_fn);
}
}
-/* New call was added, make goto call edges if neccesary. */
-
-static void
-add_abnormal_goto_call_edges (gimple_stmt_iterator gsi)
-{
- gimple stmt = gsi_stmt (gsi);
-
- if (!stmt_can_make_abnormal_goto (stmt))
- return;
- if (!gsi_end_p (gsi))
- split_block (gimple_bb (stmt), stmt);
- make_abnormal_goto_edges (gimple_bb (stmt), true);
-}
-
/* Output instructions as GIMPLE trees to increment the edge
execution count, and insert them on E. We rely on
gsi_insert_on_edge to preserve the order. */
-static void
-tree_gen_edge_profiler (int edgeno, edge e)
+void
+gimple_gen_edge_profiler (int edgeno, edge e)
{
- tree ref, one;
+ tree ref, one, gcov_type_tmp_var;
gimple stmt1, stmt2, stmt3;
- /* We share one temporary variable declaration per function. This
- gets re-set in tree_profiling. */
- if (gcov_type_tmp_var == NULL_TREE)
- gcov_type_tmp_var = create_tmp_var (gcov_type_node, "PROF_edge_counter");
ref = tree_coverage_counter_ref (GCOV_COUNTER_ARCS, edgeno);
one = build_int_cst (gcov_type_node, 1);
+ gcov_type_tmp_var = make_temp_ssa_name (gcov_type_node,
+ NULL, "PROF_edge_counter");
stmt1 = gimple_build_assign (gcov_type_tmp_var, ref);
+ gcov_type_tmp_var = make_temp_ssa_name (gcov_type_node,
+ NULL, "PROF_edge_counter");
stmt2 = gimple_build_assign_with_ops (PLUS_EXPR, gcov_type_tmp_var,
- gcov_type_tmp_var, one);
- stmt3 = gimple_build_assign (unshare_expr (ref), gcov_type_tmp_var);
+ gimple_assign_lhs (stmt1), one);
+ stmt3 = gimple_build_assign (unshare_expr (ref), gimple_assign_lhs (stmt2));
gsi_insert_on_edge (e, stmt1);
gsi_insert_on_edge (e, stmt2);
gsi_insert_on_edge (e, stmt3);
{
tree val = value->hvalue.value;
if (POINTER_TYPE_P (TREE_TYPE (val)))
- val = fold_convert (sizetype, val);
+ val = fold_convert (build_nonstandard_integer_type
+ (TYPE_PRECISION (TREE_TYPE (val)), 1), val);
return force_gimple_operand_gsi (gsi, fold_convert (gcov_type_node, val),
true, NULL_TREE, true, GSI_SAME_STMT);
}
counter. VALUE is the expression whose value is profiled. TAG is the
tag of the section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_interval_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_interval_profiler (histogram_value value, unsigned tag, unsigned base)
{
gimple stmt = value->hvalue.stmt;
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
call = gimple_build_call (tree_interval_profiler_fn, 4,
ref_ptr, val, start, steps);
gsi_insert_before (&gsi, call, GSI_NEW_STMT);
- add_abnormal_goto_call_edges (gsi);
}
/* Output instructions as GIMPLE trees to increment the power of two histogram
counter. VALUE is the expression whose value is profiled. TAG is the tag
of the section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_pow2_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_pow2_profiler (histogram_value value, unsigned tag, unsigned base)
{
gimple stmt = value->hvalue.stmt;
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
val = prepare_instrumented_value (&gsi, value);
call = gimple_build_call (tree_pow2_profiler_fn, 2, ref_ptr, val);
gsi_insert_before (&gsi, call, GSI_NEW_STMT);
- add_abnormal_goto_call_edges (gsi);
}
/* Output instructions as GIMPLE trees for code to find the most common value.
VALUE is the expression whose value is profiled. TAG is the tag of the
section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_one_value_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_one_value_profiler (histogram_value value, unsigned tag, unsigned base)
{
gimple stmt = value->hvalue.stmt;
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
val = prepare_instrumented_value (&gsi, value);
call = gimple_build_call (tree_one_value_profiler_fn, 2, ref_ptr, val);
gsi_insert_before (&gsi, call, GSI_NEW_STMT);
- add_abnormal_goto_call_edges (gsi);
}
TAG is the tag of the section for counters, BASE is offset of the
counter position. */
-static void
-tree_gen_ic_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_ic_profiler (histogram_value value, unsigned tag, unsigned base)
{
tree tmp1;
gimple stmt1, stmt2, stmt3;
/* Insert code:
- __gcov_indirect_call_counters = get_relevant_counter_ptr ();
- __gcov_indirect_call_callee = (void *) indirect call argument;
+ stmt1: __gcov_indirect_call_counters = get_relevant_counter_ptr ();
+ stmt2: tmp1 = (void *) (indirect call argument value)
+ stmt3: __gcov_indirect_call_callee = tmp1;
*/
- tmp1 = create_tmp_var (ptr_void, "PROF");
stmt1 = gimple_build_assign (ic_gcov_type_ptr_var, ref_ptr);
+ tmp1 = make_temp_ssa_name (ptr_void, NULL, "PROF");
stmt2 = gimple_build_assign (tmp1, unshare_expr (value->hvalue.value));
- stmt3 = gimple_build_assign (ic_void_ptr_var, tmp1);
+ stmt3 = gimple_build_assign (ic_void_ptr_var, gimple_assign_lhs (stmt2));
gsi_insert_before (&gsi, stmt1, GSI_SAME_STMT);
gsi_insert_before (&gsi, stmt2, GSI_SAME_STMT);
beginning of every possible called function.
*/
-static void
-tree_gen_ic_func_profiler (void)
+void
+gimple_gen_ic_func_profiler (void)
{
- struct cgraph_node * c_node = cgraph_node (current_function_decl);
+ struct cgraph_node * c_node = cgraph_get_node (current_function_decl);
gimple_stmt_iterator gsi;
- edge e;
- basic_block bb;
- edge_iterator ei;
gimple stmt1, stmt2;
- tree tree_uid, cur_func;
+ tree tree_uid, cur_func, void0;
- if (!c_node->needed)
+ if (cgraph_only_called_directly_p (c_node))
return;
- tree_init_edge_profiler ();
+ gimple_init_edge_profiler ();
- FOR_EACH_EDGE (e, ei, ENTRY_BLOCK_PTR->succs)
- {
- tree void0;
+ /* Insert code:
- bb = split_edge (e);
- gsi = gsi_start_bb (bb);
+ stmt1: __gcov_indirect_call_profiler_v2 (profile_id,
+ ¤t_function_decl)
+ */
+ gsi = gsi_after_labels (split_edge (single_succ_edge (ENTRY_BLOCK_PTR)));
+
+ cur_func = force_gimple_operand_gsi (&gsi,
+ build_addr (current_function_decl,
+ current_function_decl),
+ true, NULL_TREE,
+ true, GSI_SAME_STMT);
+ tree_uid = build_int_cst
+ (gcov_type_node, cgraph_get_node (current_function_decl)->profile_id);
+ /* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
+ if (flag_lto)
+ {
+ tree counter_ptr, ptr_var;
+ counter_ptr = force_gimple_operand_gsi (&gsi, ic_gcov_type_ptr_var,
+ true, NULL_TREE, true,
+ GSI_SAME_STMT);
+ ptr_var = force_gimple_operand_gsi (&gsi, ic_void_ptr_var,
+ true, NULL_TREE, true,
+ GSI_SAME_STMT);
- cur_func = force_gimple_operand_gsi (&gsi,
- build_addr (current_function_decl,
- current_function_decl),
- true, NULL_TREE,
- true, GSI_SAME_STMT);
- tree_uid = build_int_cst (gcov_type_node, c_node->pid);
stmt1 = gimple_build_call (tree_indirect_call_profiler_fn, 4,
- ic_gcov_type_ptr_var,
- tree_uid,
- cur_func,
- ic_void_ptr_var);
- gsi_insert_after (&gsi, stmt1, GSI_NEW_STMT);
- gcc_assert (EDGE_COUNT (bb->succs) == 1);
- bb = split_edge (EDGE_I (bb->succs, 0));
- add_abnormal_goto_call_edges (gsi);
-
- gsi = gsi_start_bb (bb);
- /* Set __gcov_indirect_call_callee to 0,
- so that calls from other modules won't get misattributed
- to the last caller of the current callee. */
- void0 = build_int_cst (build_pointer_type (void_type_node), 0);
- stmt2 = gimple_build_assign (ic_void_ptr_var, void0);
- gsi_insert_after (&gsi, stmt2, GSI_NEW_STMT);
+ counter_ptr, tree_uid, cur_func, ptr_var);
}
+ else
+ {
+ stmt1 = gimple_build_call (tree_indirect_call_profiler_fn, 2,
+ tree_uid, cur_func);
+ }
+ gsi_insert_before (&gsi, stmt1, GSI_SAME_STMT);
+
+ /* Set __gcov_indirect_call_callee to 0,
+ so that calls from other modules won't get misattributed
+ to the last caller of the current callee. */
+ void0 = build_int_cst (build_pointer_type (void_type_node), 0);
+ stmt2 = gimple_build_assign (ic_void_ptr_var, void0);
+ gsi_insert_before (&gsi, stmt2, GSI_SAME_STMT);
+}
+
+/* Output instructions as GIMPLE tree at the beginning for each function.
+ TAG is the tag of the section for counters, BASE is offset of the
+ counter position and GSI is the iterator we place the counter. */
+
+void
+gimple_gen_time_profiler (unsigned tag, unsigned base,
+ gimple_stmt_iterator &gsi)
+{
+ tree ref_ptr = tree_coverage_counter_addr (tag, base);
+ gimple call;
+
+ ref_ptr = force_gimple_operand_gsi (&gsi, ref_ptr,
+ true, NULL_TREE, true, GSI_SAME_STMT);
+ call = gimple_build_call (tree_time_profiler_fn, 1, ref_ptr);
+ gsi_insert_before (&gsi, call, GSI_NEW_STMT);
}
/* Output instructions as GIMPLE trees for code to find the most common value
VALUE is the expression whose value is profiled. TAG is the tag of the
section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_const_delta_profiler (histogram_value value ATTRIBUTE_UNUSED,
+void
+gimple_gen_const_delta_profiler (histogram_value value ATTRIBUTE_UNUSED,
unsigned tag ATTRIBUTE_UNUSED,
unsigned base ATTRIBUTE_UNUSED)
{
counter. VALUE is the expression whose value is profiled. TAG is the
tag of the section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_average_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_average_profiler (histogram_value value, unsigned tag, unsigned base)
{
gimple stmt = value->hvalue.stmt;
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
val = prepare_instrumented_value (&gsi, value);
call = gimple_build_call (tree_average_profiler_fn, 2, ref_ptr, val);
gsi_insert_before (&gsi, call, GSI_NEW_STMT);
- add_abnormal_goto_call_edges (gsi);
}
/* Output instructions as GIMPLE trees to increment the ior histogram
counter. VALUE is the expression whose value is profiled. TAG is the
tag of the section for counters, BASE is offset of the counter position. */
-static void
-tree_gen_ior_profiler (histogram_value value, unsigned tag, unsigned base)
+void
+gimple_gen_ior_profiler (histogram_value value, unsigned tag, unsigned base)
{
gimple stmt = value->hvalue.stmt;
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
val = prepare_instrumented_value (&gsi, value);
call = gimple_build_call (tree_ior_profiler_fn, 2, ref_ptr, val);
gsi_insert_before (&gsi, call, GSI_NEW_STMT);
- add_abnormal_goto_call_edges (gsi);
}
-/* Return 1 if tree-based profiling is in effect, else 0.
- If it is, set up hooks for tree-based profiling.
- Gate for pass_tree_profile. */
+/* Profile all functions in the callgraph. */
-static bool
-do_tree_profiling (void)
+static unsigned int
+tree_profiling (void)
{
- if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities)
+ struct cgraph_node *node;
+
+ /* This is a small-ipa pass that gets called only once, from
+ cgraphunit.c:ipa_passes(). */
+ gcc_assert (cgraph_state == CGRAPH_STATE_IPA_SSA);
+
+ init_node_map (true);
+
+ FOR_EACH_DEFINED_FUNCTION (node)
+ {
+ if (!gimple_has_body_p (node->decl))
+ continue;
+
+ /* Don't profile functions produced for builtin stuff. */
+ if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
+ continue;
+
+ push_cfun (DECL_STRUCT_FUNCTION (node->decl));
+
+ /* Local pure-const may imply need to fixup the cfg. */
+ if (execute_fixup_cfg () & TODO_cleanup_cfg)
+ cleanup_tree_cfg ();
+
+ branch_prob ();
+
+ if (! flag_branch_probabilities
+ && flag_profile_values)
+ gimple_gen_ic_func_profiler ();
+
+ if (flag_branch_probabilities
+ && flag_profile_values
+ && flag_value_profile_transformations)
+ gimple_value_profile_transformations ();
+
+ /* The above could hose dominator info. Currently there is
+ none coming in, this is a safety valve. It should be
+ easy to adjust it, if and when there is some. */
+ free_dominance_info (CDI_DOMINATORS);
+ free_dominance_info (CDI_POST_DOMINATORS);
+ pop_cfun ();
+ }
+
+ /* Drop pure/const flags from instrumented functions. */
+ FOR_EACH_DEFINED_FUNCTION (node)
+ {
+ if (!gimple_has_body_p (node->decl)
+ || !(!node->clone_of
+ || node->decl != node->clone_of->decl))
+ continue;
+
+ /* Don't profile functions produced for builtin stuff. */
+ if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
+ continue;
+
+ cgraph_set_const_flag (node, false, false);
+ cgraph_set_pure_flag (node, false, false);
+ }
+
+ /* Update call statements and rebuild the cgraph. */
+ FOR_EACH_DEFINED_FUNCTION (node)
{
- tree_register_profile_hooks ();
- gimple_register_value_prof_hooks ();
- return true;
+ basic_block bb;
+
+ if (!gimple_has_body_p (node->decl)
+ || !(!node->clone_of
+ || node->decl != node->clone_of->decl))
+ continue;
+
+ /* Don't profile functions produced for builtin stuff. */
+ if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
+ continue;
+
+ push_cfun (DECL_STRUCT_FUNCTION (node->decl));
+
+ FOR_EACH_BB (bb)
+ {
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple stmt = gsi_stmt (gsi);
+ if (is_gimple_call (stmt))
+ update_stmt (stmt);
+ }
+ }
+
+ /* re-merge split blocks. */
+ cleanup_tree_cfg ();
+ update_ssa (TODO_update_ssa);
+
+ rebuild_cgraph_edges ();
+
+ pop_cfun ();
}
- return false;
+
+ handle_missing_profiles ();
+
+ del_node_map ();
+ return 0;
}
-static unsigned int
-tree_profiling (void)
+/* When profile instrumentation, use or test coverage shall be performed. */
+
+static bool
+gate_tree_profile_ipa (void)
{
- /* Don't profile functions produced at destruction time, particularly
- the gcov datastructure initializer. Don't profile if it has been
- already instrumented either (when OpenMP expansion creates
- child function from already instrumented body). */
- if (cgraph_state == CGRAPH_STATE_FINISHED
- || cfun->after_tree_profile)
- return 0;
-
- /* Re-set global shared temporary variable for edge-counters. */
- gcov_type_tmp_var = NULL_TREE;
-
- branch_prob ();
-
- if (! flag_branch_probabilities
- && flag_profile_values)
- tree_gen_ic_func_profiler ();
-
- if (flag_branch_probabilities
- && flag_profile_values
- && flag_value_profile_transformations)
- value_profile_transformations ();
- /* The above could hose dominator info. Currently there is
- none coming in, this is a safety valve. It should be
- easy to adjust it, if and when there is some. */
- free_dominance_info (CDI_DOMINATORS);
- free_dominance_info (CDI_POST_DOMINATORS);
- cfun->after_tree_profile = 1;
- return 0;
+ return (!in_lto_p
+ && (flag_branch_probabilities || flag_test_coverage
+ || profile_arc_flag));
}
-struct gimple_opt_pass pass_tree_profile =
+namespace {
+
+const pass_data pass_data_ipa_tree_profile =
{
- {
- GIMPLE_PASS,
- "tree_profile", /* name */
- do_tree_profiling, /* gate */
- tree_profiling, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- TV_BRANCH_PROB, /* tv_id */
- PROP_gimple_leh | PROP_cfg, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- TODO_verify_stmts | TODO_dump_func /* todo_flags_finish */
- }
+ SIMPLE_IPA_PASS, /* type */
+ "profile", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ true, /* has_gate */
+ true, /* has_execute */
+ TV_IPA_PROFILE, /* tv_id */
+ 0, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0, /* todo_flags_finish */
};
-struct profile_hooks tree_profile_hooks =
+class pass_ipa_tree_profile : public simple_ipa_opt_pass
{
- tree_init_edge_profiler, /* init_edge_profiler */
- tree_gen_edge_profiler, /* gen_edge_profiler */
- tree_gen_interval_profiler, /* gen_interval_profiler */
- tree_gen_pow2_profiler, /* gen_pow2_profiler */
- tree_gen_one_value_profiler, /* gen_one_value_profiler */
- tree_gen_const_delta_profiler, /* gen_const_delta_profiler */
- tree_gen_ic_profiler, /* gen_ic_profiler */
- tree_gen_average_profiler, /* gen_average_profiler */
- tree_gen_ior_profiler /* gen_ior_profiler */
-};
+public:
+ pass_ipa_tree_profile (gcc::context *ctxt)
+ : simple_ipa_opt_pass (pass_data_ipa_tree_profile, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ bool gate () { return gate_tree_profile_ipa (); }
+ unsigned int execute () { return tree_profiling (); }
+
+}; // class pass_ipa_tree_profile
+
+} // anon namespace
+
+simple_ipa_opt_pass *
+make_pass_ipa_tree_profile (gcc::context *ctxt)
+{
+ return new pass_ipa_tree_profile (ctxt);
+}
#include "gt-tree-profile.h"
projects / gcc.git / blobdiff