diff options
| author | wmi <wmi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-11-04 21:45:05 +0000 |
|---|---|---|
| committer | wmi <wmi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-11-04 21:45:05 +0000 |
| commit | 681b96094339370ddc969d9a2eb5fe4e5323ac29 (patch) | |
| tree | f54f2a607e3215d37070108ae88eeaed39ffb738 /gcc/sched-rgn.c | |
| parent | 641b578b37faf7865a6d1e63064c86b5dbc91425 (diff) | |
| download | gcc-681b96094339370ddc969d9a2eb5fe4e5323ac29.tar.gz | |
2013-11-04 Wei Mi <wmi@google.com>
* sched-rgn.c (add_branch_dependences): Keep insns in
a SCHED_GROUP at the end of BB to remain their location.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204371 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched-rgn.c')
| -rw-r--r-- | gcc/sched-rgn.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c index bf9b10df3a9..73a236b5929 100644 --- a/gcc/sched-rgn.c +++ b/gcc/sched-rgn.c @@ -2443,6 +2443,8 @@ add_branch_dependences (rtx head, rtx tail) cc0 setters remain at the end because they can't be moved away from their cc0 user. + Predecessors of SCHED_GROUP_P instructions at the end remain at the end. + COND_EXEC insns cannot be moved past a branch (see e.g. PR17808). Insns setting TARGET_CLASS_LIKELY_SPILLED_P registers (usually return @@ -2465,7 +2467,8 @@ add_branch_dependences (rtx head, rtx tail) #endif || (!reload_completed && sets_likely_spilled (PATTERN (insn))))) - || NOTE_P (insn)) + || NOTE_P (insn) + || (last != 0 && SCHED_GROUP_P (last))) { if (!NOTE_P (insn)) { |