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| author | Richard Sandiford <rsandifo@redhat.com> | 2004-05-28 06:27:31 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2004-05-28 06:27:31 +0000 |
| commit | 6c2511d34e54923dd7c2195dff882ffcffaa9631 (patch) | |
| tree | 01cb54144d0b7a3428f399cddba1a9e459851788 /gcc/emit-rtl.c | |
| parent | 4fbf3498e4c9f43d7143d22f7a0b0f0ce9a067bf (diff) | |
| download | gcc-6c2511d34e54923dd7c2195dff882ffcffaa9631.zip gcc-6c2511d34e54923dd7c2195dff882ffcffaa9631.tar.gz gcc-6c2511d34e54923dd7c2195dff882ffcffaa9631.tar.bz2 | |
rtl.h (skip_consecutive_labels): Declare.
* rtl.h (skip_consecutive_labels): Declare.
* emit-rtl.c (skip_consecutive_labels): New function.
* reorg.c (relax_delay_slots, dbr_schedule): Use it.
* jump.c (follow_jumps): Say what null return values mean.
From-SVN: r82357
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index bc23bb7..c3503ee 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -3109,6 +3109,21 @@ prev_label (rtx insn) return insn; } + +/* Return the last label to mark the same position as LABEL. Return null + if LABEL itself is null. */ + +rtx +skip_consecutive_labels (rtx label) +{ + rtx insn; + + for (insn = label; insn != 0 && !INSN_P (insn); insn = NEXT_INSN (insn)) + if (LABEL_P (insn)) + label = insn; + + return label; +} #ifdef HAVE_cc0 /* INSN uses CC0 and is being moved into a delay slot. Set up REG_CC_SETTER |