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| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-01-18 10:12:22 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-01-18 10:12:22 +0000 |
| commit | 8ef42ff578443867c1ad597f11325edc4fdb3649 (patch) | |
| tree | 08a94ea963a1b5777d0b73d6d37380df36dd60d0 /gcc/reorg.c | |
| parent | 084a826142b49f4b5837df963621e471df9b4c51 (diff) | |
| download | gcc-8ef42ff578443867c1ad597f11325edc4fdb3649.tar.gz | |
gcc/
* jump.c (delete_related_insns): Keep (use (insn))s.
* reorg.c (redundant_insn): Check for barriers too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206749 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 de332323ae1..054304a188a 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -1512,7 +1512,10 @@ redundant_insn (rtx insn, rtx target, rtx delay_list) trial && insns_to_search > 0; trial = PREV_INSN (trial)) { - if (LABEL_P (trial)) + /* (use (insn))s can come immediately after a barrier if the + label that used to precede them has been deleted as dead. + See delete_related_insns. */ + if (LABEL_P (trial) || BARRIER_P (trial)) return 0; if (!INSN_P (trial)) |