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authorJoern Rennecke <joern.rennecke@embecosm.com>2012-09-20 20:17:34 +0000
committerJoern Rennecke <amylaar@gcc.gnu.org>2012-09-20 21:17:34 +0100
commit10439b597da13929a4e5f2fd3dc6679896d57a2d (patch)
treed16a46203a6fb7e71a64481dff4b6e82c16568e8 /gcc/rtlanal.c
parent8750dfc52c18f7a69e9202b14936d282a793a130 (diff)
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* rtlanal.c (dead_or_set_regno_p): Fix COND_EXEC handling.
From-SVN: r191586
Diffstat (limited to 'gcc/rtlanal.c')
-rw-r--r--gcc/rtlanal.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 89ca226..fb7d45c 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -1701,8 +1701,9 @@ dead_or_set_regno_p (const_rtx insn, unsigned int test_regno)
pattern = PATTERN (insn);
+ /* If a COND_EXEC is not executed, the value survives. */
if (GET_CODE (pattern) == COND_EXEC)
- pattern = COND_EXEC_CODE (pattern);
+ return 0;
if (GET_CODE (pattern) == SET)
return covers_regno_p (SET_DEST (pattern), test_regno);