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| author | John David Anglin <dave.anglin@nrc-cnrc.gc.ca> | 2004-05-20 18:36:50 +0000 |
|---|---|---|
| committer | John David Anglin <danglin@gcc.gnu.org> | 2004-05-20 18:36:50 +0000 |
| commit | 52fe4de8a3f1afcefdad091977f9b1a21b92a5a1 (patch) | |
| tree | cacf03b0026cae4961695314d60373036916041c /gcc/reorg.c | |
| parent | 7e14028056eafe6486281fb96d17d2f873f6248f (diff) | |
| download | gcc-52fe4de8a3f1afcefdad091977f9b1a21b92a5a1.zip gcc-52fe4de8a3f1afcefdad091977f9b1a21b92a5a1.tar.gz gcc-52fe4de8a3f1afcefdad091977f9b1a21b92a5a1.tar.bz2 | |
reorg.c (delete_from_delay_slot): If we have a barrier after the sequence containing the insn to be deleted...
* reorg.c (delete_from_delay_slot): If we have a barrier after the
sequence containing the insn to be deleted, always reemit it.
From-SVN: r82065
Diffstat (limited to 'gcc/reorg.c')
| -rw-r--r-- | gcc/reorg.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index 2ae0a8f..dd9737b 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -570,6 +570,7 @@ delete_from_delay_slot (rtx insn) rtx trial, seq_insn, seq, prev; rtx delay_list = 0; int i; + int had_barrier = 0; /* We first must find the insn containing the SEQUENCE with INSN in its delay slot. Do this by finding an insn, TRIAL, where @@ -583,6 +584,9 @@ delete_from_delay_slot (rtx insn) seq_insn = PREV_INSN (NEXT_INSN (trial)); seq = PATTERN (seq_insn); + if (NEXT_INSN (seq_insn) && GET_CODE (NEXT_INSN (seq_insn)) == BARRIER) + had_barrier = 1; + /* Create a delay list consisting of all the insns other than the one we are deleting (unless we were the only one). */ if (XVECLEN (seq, 0) > 2) @@ -597,8 +601,8 @@ delete_from_delay_slot (rtx insn) delete_related_insns (seq_insn); add_insn_after (trial, prev); - if (GET_CODE (trial) == JUMP_INSN - && (simplejump_p (trial) || GET_CODE (PATTERN (trial)) == RETURN)) + /* If there was a barrier after the old SEQUENCE, remit it. */ + if (had_barrier) emit_barrier_after (trial); /* If there are any delay insns, remit them. Otherwise clear the |