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authorDale Johannesen <dalej@apple.com>2004-11-16 01:26:00 +0000
committerDale Johannesen <dalej@gcc.gnu.org>2004-11-16 01:26:00 +0000
commitb00843d2851a8021f148ea11209d205f5b8e6469 (patch)
tree82ac2ff37928b22b45e27ce54db8f8931281757a /gcc/profile.c
parent32f84e48f38788f1f90b370d8835d7686b697554 (diff)
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profile.c (compute_branch_probabilities): Prevent crash with EH in RTL-based profiling.
2004-11-15 Dale Johannesen <dalej@apple.com> * profile.c (compute_branch_probabilities): Prevent crash with EH in RTL-based profiling. From-SVN: r90711
Diffstat (limited to 'gcc/profile.c')
-rw-r--r--gcc/profile.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/profile.c b/gcc/profile.c
index 93d79d0..318defd 100644
--- a/gcc/profile.c
+++ b/gcc/profile.c
@@ -569,10 +569,13 @@ compute_branch_probabilities (void)
}
}
/* Otherwise try to preserve the existing REG_BR_PROB probabilities
- tree based profile guessing put into code. */
+ tree based profile guessing put into code. BB can be the
+ ENTRY_BLOCK, and it can have multiple (fake) successors in
+ EH cases, but it still has no code; don't crash in this case. */
else if (profile_status == PROFILE_ABSENT
&& !ir_type ()
&& EDGE_COUNT (bb->succs) > 1
+ && BB_END (bb)
&& (note = find_reg_note (BB_END (bb), REG_BR_PROB, 0)))
{
int prob = INTVAL (XEXP (note, 0));