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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1995-04-04 21:16:40 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1995-04-04 21:16:40 +0000 |
| commit | 6bd5d07a52496a85dfb92f279acbaba1be47145b (patch) | |
| tree | da02dea3c1b5dc2fb88cf7d54e345a183fef2e73 /gcc/reorg.c | |
| parent | 11682839619bab6758add75bd10975127d014d8d (diff) | |
| download | gcc-6bd5d07a52496a85dfb92f279acbaba1be47145b.tar.gz | |
* reorg.c (fill_simple_delay_slots): Don't use a JUMP_INSN
a the target of another JUMP_INSN to fill a delay slot.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@9312 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reorg.c')
| -rw-r--r-- | gcc/reorg.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index 4c36d33b3fb..f4667ca094e 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -3103,7 +3103,9 @@ fill_simple_delay_slots (first, non_jumps_p) /* If there are slots left to fill and our search was stopped by an unconditional branch, try the insn at the branch target. We can - redirect the branch if it works. */ + redirect the branch if it works. + + Don't do this if the insn at the branch target is a branch. */ if (slots_to_fill != slots_filled && trial && GET_CODE (trial) == JUMP_INSN @@ -3112,6 +3114,7 @@ fill_simple_delay_slots (first, non_jumps_p) && (next_trial = next_active_insn (JUMP_LABEL (trial))) != 0 && ! (GET_CODE (next_trial) == INSN && GET_CODE (PATTERN (next_trial)) == SEQUENCE) + && GET_CODE (next_trial) != JUMP_INSN && ! insn_references_resource_p (next_trial, &set, 1) && ! insn_sets_resource_p (next_trial, &set, 1) && ! insn_sets_resource_p (next_trial, &needed, 1) |