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| author | Xinliang David Li <davidxl@google.com> | 2014-05-20 20:12:22 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@gcc.gnu.org> | 2014-05-20 20:12:22 +0000 |
| commit | 2b5f08952775ead634c0020b2dcf9523414c8752 (patch) | |
| tree | 01587269ffd956843f503c973e2d46f9e33e8016 /gcc/gimple-fold.c | |
| parent | 9c5f620306f1a53d0d0c5d75e77bd9c6af1e6cd1 (diff) | |
| download | gcc-2b5f08952775ead634c0020b2dcf9523414c8752.zip gcc-2b5f08952775ead634c0020b2dcf9523414c8752.tar.gz gcc-2b5f08952775ead634c0020b2dcf9523414c8752.tar.bz2 | |
add dbgcnt support for devirt
From-SVN: r210657
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 264356f..1c2eed5 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -52,6 +52,7 @@ along with GCC; see the file COPYING3. If not see #include "tree-ssa-address.h" #include "langhooks.h" #include "gimplify-me.h" +#include "dbgcnt.h" /* Return true when DECL can be referenced from current unit. FROM_DECL (if non-null) specify constructor of variable DECL was taken from. @@ -386,13 +387,24 @@ fold_gimple_assign (gimple_stmt_iterator *si) bool final; vec <cgraph_node *>targets = possible_polymorphic_call_targets (val, &final); - if (final && targets.length () <= 1) + if (final && targets.length () <= 1 && dbg_cnt (devirt)) { tree fndecl; + if (targets.length () == 1) fndecl = targets[0]->decl; else fndecl = builtin_decl_implicit (BUILT_IN_UNREACHABLE); + if (dump_enabled_p ()) + { + location_t loc = gimple_location (stmt); + dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc, + "resolving virtual function address " + "reference to function %s\n", + targets.length () == 1 + ? targets[0]->name () + : "__builtin_unreachable"); + } val = fold_convert (TREE_TYPE (val), fndecl); STRIP_USELESS_TYPE_CONVERSION (val); return val; @@ -1124,9 +1136,18 @@ gimple_fold_call (gimple_stmt_iterator *gsi, bool inplace) bool final; vec <cgraph_node *>targets = possible_polymorphic_call_targets (callee, &final); - if (final && targets.length () <= 1) + if (final && targets.length () <= 1 && dbg_cnt (devirt)) { tree lhs = gimple_call_lhs (stmt); + if (dump_enabled_p ()) + { + location_t loc = gimple_location (stmt); + dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc, + "folding virtual function call to %s\n", + targets.length () == 1 + ? targets[0]->name () + : "__builtin_unreachable"); + } if (targets.length () == 1) { gimple_call_set_fndecl (stmt, targets[0]->decl); |