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authordalej <dalej@138bc75d-0d04-0410-961f-82ee72b054a4>2004-11-16 01:26:00 +0000
committerdalej <dalej@138bc75d-0d04-0410-961f-82ee72b054a4>2004-11-16 01:26:00 +0000
commitda14d5e5fb57ddd90cd1b6ff5f001aa09bd167eb (patch)
tree82ac2ff37928b22b45e27ce54db8f8931281757a
parent037ff4cc9d0106aa5cb24c067bdea7729d071f14 (diff)
downloadppe42-gcc-da14d5e5fb57ddd90cd1b6ff5f001aa09bd167eb.tar.gz
ppe42-gcc-da14d5e5fb57ddd90cd1b6ff5f001aa09bd167eb.zip
2004-11-15 Dale Johannesen <dalej@apple.com>
* profile.c (compute_branch_probabilities): Prevent crash with EH in RTL-based profiling. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@90711 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/profile.c5
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5c508075ddf..eec443fad5e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-11-15 Dale Johannesen <dalej@apple.com>
+
+ * profile.c (compute_branch_probabilities): Prevent
+ crash with EH in RTL-based profiling.
+
2004-11-16 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (verify_expr): Replace TREE_OPERAND with
diff --git a/gcc/profile.c b/gcc/profile.c
index 93d79d03b50..318defdafb0 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));
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