diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-07-16 16:28:57 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-07-16 16:28:57 +0000 |
| commit | 7dc9e270ede5fa6926c72b77283c7666b55d3a88 (patch) | |
| tree | 69e818d236239a41c91720468efd0966c3674321 | |
| parent | 61cb18166c6a1507af78ce73a4e3c8a21b0cb8ab (diff) | |
| download | gcc-7dc9e270ede5fa6926c72b77283c7666b55d3a88.tar.gz | |
* asan.c (create_cond_insert_point): Avoid use of REG_BR_PROB_BASE
fixpoint arithmetics.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250240 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/asan.c | 12 |
2 files changed, 10 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f3bafa52d37..f17ed1fe91d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2017-07-16 Jan Hubicka <hubicka@ucw.cz> + * asan.c (create_cond_insert_point): Avoid use of REG_BR_PROB_BASE + fixpoint arithmetics. + +2017-07-16 Jan Hubicka <hubicka@ucw.cz> + * profile-count.h (profile_probability::from_reg_br_prob_note, profile_probability::to_reg_br_prob_note): New functions. * doc/rtl.texi (REG_BR_PROB_NOTE): Update documentation. diff --git a/gcc/asan.c b/gcc/asan.c index a56174a1656..5f9275f6425 100644 --- a/gcc/asan.c +++ b/gcc/asan.c @@ -1798,12 +1798,11 @@ create_cond_insert_point (gimple_stmt_iterator *iter, /* Set up the newly created 'then block'. */ e = make_edge (cond_bb, then_bb, EDGE_TRUE_VALUE); - int fallthrough_probability + profile_probability fallthrough_probability = then_more_likely_p - ? PROB_VERY_UNLIKELY - : PROB_ALWAYS - PROB_VERY_UNLIKELY; - e->probability = profile_probability::from_reg_br_prob_base - (PROB_ALWAYS - fallthrough_probability); + ? profile_probability::very_unlikely () + : profile_probability::very_likely (); + e->probability = fallthrough_probability.invert (); if (create_then_fallthru_edge) make_single_succ_edge (then_bb, fallthru_bb, EDGE_FALLTHRU); @@ -1811,8 +1810,7 @@ create_cond_insert_point (gimple_stmt_iterator *iter, e = find_edge (cond_bb, fallthru_bb); e->flags = EDGE_FALSE_VALUE; e->count = cond_bb->count; - e->probability - = profile_probability::from_reg_br_prob_base (fallthrough_probability); + e->probability = fallthrough_probability; /* Update dominance info for the newly created then_bb; note that fallthru_bb's dominance info has already been updated by |