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authorbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2011-10-20 08:38:32 +0000
committerbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2011-10-20 08:38:32 +0000
commit3e41a3c4063d1014118aafa8c609e2f5741bf2da (patch)
treed1d81473ac0df66d33973cb168258176e1ca34bf /gcc/sel-sched-ir.c
parent94cd0238acdaea5ab220faaa3a6b7ecc0ec0c512 (diff)
downloadgcc-3e41a3c4063d1014118aafa8c609e2f5741bf2da.tar.gz
2011-10-19 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk rev 180237 using svnmerge. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@180238 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sel-sched-ir.c')
-rw-r--r--gcc/sel-sched-ir.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c
index 4878460f882..dacee0b9e9b 100644
--- a/gcc/sel-sched-ir.c
+++ b/gcc/sel-sched-ir.c
@@ -1745,6 +1745,11 @@ update_target_availability (expr_t to, expr_t from, insn_t split_point)
else
EXPR_TARGET_AVAILABLE (to) = -1;
}
+ else if (EXPR_TARGET_AVAILABLE (from) == 0
+ && EXPR_LHS (from)
+ && REG_P (EXPR_LHS (from))
+ && REGNO (EXPR_LHS (to)) != REGNO (EXPR_LHS (from)))
+ EXPR_TARGET_AVAILABLE (to) = -1;
else
EXPR_TARGET_AVAILABLE (to) &= EXPR_TARGET_AVAILABLE (from);
}