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| author | Jan Hubicka <hubicka@ucw.cz> | 2017-06-05 19:41:32 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2017-06-05 17:41:32 +0000 |
| commit | aea5e79a63f965a9ed5fd2ef1943e3865495e987 (patch) | |
| tree | 52c60043f6ed486d65cb1a8a38cb71979166465c /gcc/profile-count.h | |
| parent | 2f20e7db2caea4909ddff539b2419c9f34c907c4 (diff) | |
| download | gcc-aea5e79a63f965a9ed5fd2ef1943e3865495e987.zip gcc-aea5e79a63f965a9ed5fd2ef1943e3865495e987.tar.gz gcc-aea5e79a63f965a9ed5fd2ef1943e3865495e987.tar.bz2 | |
cfgexpand.c (expand_gimple_tailcall): Initialize profile of new edge.
* cfgexpand.c (expand_gimple_tailcall): Initialize profile of
new edge.
* ipa-inline.c (want_inline_self_recursive_call_p): Watch for missing
profile in callgraph edge.
* profile-count.h (apply_probability): If THIS is 0, then result is 0
(apply_scale): Likewise.
* tree-inline.c (copy_bb, copy_edges_for_bb, copy_cfg_body):
Also scale profile when inlining function with zero profile.
(initialize_cfun): Update exit block profile even when it is zero.
* tree-ssa-threadupdate.c (clear_counts_path): Handle correctly case
when profile is read.
From-SVN: r248885
Diffstat (limited to 'gcc/profile-count.h')
| -rw-r--r-- | gcc/profile-count.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/profile-count.h b/gcc/profile-count.h index 2ac7f32..e7815db 100644 --- a/gcc/profile-count.h +++ b/gcc/profile-count.h @@ -221,6 +221,8 @@ public: profile_count apply_probability (int prob) const { gcc_checking_assert (prob >= 0 && prob <= REG_BR_PROB_BASE); + if (*this == profile_count::zero ()) + return *this; if (!initialized_p ()) return profile_count::uninitialized (); profile_count ret; @@ -230,6 +232,8 @@ public: /* Return *THIS * NUM / DEN. */ profile_count apply_scale (int64_t num, int64_t den) const { + if (*this == profile_count::zero ()) + return *this; if (!initialized_p ()) return profile_count::uninitialized (); profile_count ret; @@ -243,7 +247,7 @@ public: } profile_count apply_scale (profile_count num, profile_count den) const { - if (*this == profile_count::zero ()) + if (*this == profile_count::zero () || num == profile_count::zero ()) return profile_count::zero (); if (!initialized_p () || !num.initialized_p () || !den.initialized_p ()) return profile_count::uninitialized (); |