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| author | meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-20 01:32:44 +0000 |
|---|---|---|
| committer | meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-20 01:32:44 +0000 |
| commit | bf159d0bd823c5fbd11444afe4f9dba703c87e27 (patch) | |
| tree | a6a2fafde10fc98188ff7dd2de06cc5abe56288f | |
| parent | d86c820b243c32c68928292dbf1c5f7af63d7d9e (diff) | |
| download | ppe42-gcc-bf159d0bd823c5fbd11444afe4f9dba703c87e27.tar.gz ppe42-gcc-bf159d0bd823c5fbd11444afe4f9dba703c87e27.zip | |
Make sure THEN block has any insns at before testing for indirect jump
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35813 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/ifcvt.c | 9 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d17aaf157b8..fdf9f56931c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2000-08-19 Michael Meissner <meissner@redhat.com> + * ifcvt.c (find_if_block): Do not assume that a THEN block has any + instructions in it before checking for indirect jumps. + * ifcvt.c (find_if_block): Do not consider a THEN block that ends in a indirect jump as a potential for conditional execution. diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index 3215f6c3015..901bd42b483 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; |
