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authorMichael Meissner <meissner@redhat.com>2000-08-20 01:32:44 +0000
committerMichael Meissner <meissner@gcc.gnu.org>2000-08-20 01:32:44 +0000
commit34c9e8480c6a0ace2477e48179650e615adee3a1 (patch)
treea6a2fafde10fc98188ff7dd2de06cc5abe56288f /gcc/ifcvt.c
parentf1e42c8110b5089084f9739211b8f303cf884600 (diff)
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Make sure THEN block has any insns at before testing for indirect jump
From-SVN: r35813
Diffstat (limited to 'gcc/ifcvt.c')
-rw-r--r--gcc/ifcvt.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c
index 3215f6c..901bd42 100644
--- a/gcc/ifcvt.c
+++ b/gcc/ifcvt.c
@@ -1510,10 +1510,13 @@ find_if_block (test_bb, then_edge, else_edge)
{
rtx last_insn = then_bb->end;
- if (GET_CODE (last_insn) == NOTE)
- last_insn = prev_nonnote_insn (last_insn);
+ while (last_insn
+ && GET_CODE (last_insn) == NOTE
+ && last_insn != then_bb->head)
+ last_insn = PREV_INSN (last_insn);
- if (GET_CODE (last_insn) == JUMP_INSN
+ if (last_insn
+ && GET_CODE (last_insn) == JUMP_INSN
&& ! simplejump_p (last_insn))
return FALSE;