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| author | Andreas Krebbel <Andreas.Krebbel@de.ibm.com> | 2009-09-07 10:30:32 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2009-09-07 10:30:32 +0000 |
| commit | 3fce100b4014ea58b55e5f8b6a8475b6eff3b3e9 (patch) | |
| tree | 179ca9694e2adeee4f8201d3c4d57be345602003 /gcc/sched-deps.c | |
| parent | 2dcbb2c0bf2fcdfec60dab2105ccd93815a30005 (diff) | |
| download | gcc-3fce100b4014ea58b55e5f8b6a8475b6eff3b3e9.zip gcc-3fce100b4014ea58b55e5f8b6a8475b6eff3b3e9.tar.gz gcc-3fce100b4014ea58b55e5f8b6a8475b6eff3b3e9.tar.bz2 | |
rtl.h (PREFETCH_SCHEDULE_BARRIER_P): New macro.
2009-09-07 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* rtl.h (PREFETCH_SCHEDULE_BARRIER_P): New macro.
* sched-deps.c (sched_analyze_2): Make prefetches a hard barrier
when volatile flag is set.
* doc/rtl.texi (PREFETCH_SCHEDULE_BARRIER_P): Add documentation pieces.
From-SVN: r151475
Diffstat (limited to 'gcc/sched-deps.c')
| -rw-r--r-- | gcc/sched-deps.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c index 25f03d2..e9dac31 100644 --- a/gcc/sched-deps.c +++ b/gcc/sched-deps.c @@ -2487,6 +2487,11 @@ sched_analyze_2 (struct deps *deps, rtx x, rtx insn) flush_pending_lists (deps, insn, true, false); break; + case PREFETCH: + if (PREFETCH_SCHEDULE_BARRIER_P (x)) + reg_pending_barrier = TRUE_BARRIER; + break; + case UNSPEC_VOLATILE: flush_pending_lists (deps, insn, true, true); /* FALLTHRU */ |