diff options
| author | sje <sje@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-09-20 16:41:12 +0000 |
|---|---|---|
| committer | sje <sje@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-09-20 16:41:12 +0000 |
| commit | fa4578c672a406cb77add9d6bedaa171b2be5eba (patch) | |
| tree | 6e044ba861af2f20d86a11086e84eb3657abdfd5 /gcc/ifcvt.c | |
| parent | 59ae0c9c83e70e6a6a6da6aed83e55ed87092989 (diff) | |
| download | gcc-fa4578c672a406cb77add9d6bedaa171b2be5eba.tar.gz | |
PR target/28574
* ifcvt.c (dead_or_predicable): Don't predicate then blocks
with tablejumps in them.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117084 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ifcvt.c')
| -rw-r--r-- | gcc/ifcvt.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index 987a2fbe0bd..41da0b3af16 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -3560,6 +3560,13 @@ dead_or_predicable (basic_block test_bb, basic_block merge_bb, head = BB_HEAD (merge_bb); end = BB_END (merge_bb); + /* If merge_bb ends with a tablejump, predicating/moving insn's + into test_bb and then deleting merge_bb will result in the jumptable + that follows merge_bb being removed along with merge_bb and then we + get an unresolved reference to the jumptable. */ + if (tablejump_p (end, NULL, NULL)) + return FALSE; + if (LABEL_P (head)) head = NEXT_INSN (head); if (NOTE_P (head)) |