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| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-12-06 22:11:46 +0000 |
|---|---|---|
| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-12-06 22:11:46 +0000 |
| commit | 0398c6c9724f21e8fa07e0f28f9310baf26b43ff (patch) | |
| tree | 4308ebec609bad72b452a714a770499931e308e8 /gcc/ira.c | |
| parent | 81976f54aa6152b4f98718f8752f825bf0b3898d (diff) | |
| download | gcc-0398c6c9724f21e8fa07e0f28f9310baf26b43ff.tar.gz | |
2010-12-06 Vladimir Makarov <vmakarov@redhat.com>
* ira.c (update_equiv_regs): Prohibit move insns if
pressure-sensitive scheduling was done.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167519 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ira.c')
| -rw-r--r-- | gcc/ira.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ira.c b/gcc/ira.c index d37247f55b1..df86bb5965d 100644 --- a/gcc/ira.c +++ b/gcc/ira.c @@ -2585,7 +2585,13 @@ update_equiv_regs (void) rtx equiv_insn; if (! reg_equiv[regno].replace - || reg_equiv[regno].loop_depth < loop_depth) + || reg_equiv[regno].loop_depth < loop_depth + /* There is no sense to move insns if we did + register pressure-sensitive scheduling was + done because it will not improve allocation + but worsen insn schedule with a big + probability. */ + || (flag_sched_pressure && flag_schedule_insns)) continue; /* reg_equiv[REGNO].replace gets set only when |