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| author | Jeff Law <law@gcc.gnu.org> | 1997-12-15 00:05:04 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-12-15 00:05:04 -0700 |
| commit | 6d8ccdbbb20cdff710cd6977165bde1d763f6a40 (patch) | |
| tree | fff0335d1435c9b6e70f06bebdd1a98b6cfd22bc /gcc/sched.c | |
| parent | 7b8dd497414f0e8299a07ec4c2e81a78980b0bba (diff) | |
| download | gcc-6d8ccdbbb20cdff710cd6977165bde1d763f6a40.zip gcc-6d8ccdbbb20cdff710cd6977165bde1d763f6a40.tar.gz gcc-6d8ccdbbb20cdff710cd6977165bde1d763f6a40.tar.bz2 | |
Bring over changes from latest gcc-2.8 pre-release.
Mirror sched.c change into haifa-sched.c
From-SVN: r17097
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index a06044e..b7aa75d 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -431,17 +431,19 @@ remove_dependence (insn, elem) rtx prev, link; int found = 0; - for (prev = 0, link = LOG_LINKS (insn); link; - prev = link, link = XEXP (link, 1)) + for (prev = 0, link = LOG_LINKS (insn); link; link = XEXP (link, 1)) { if (XEXP (link, 0) == elem) { + RTX_INTEGRATED_P (link) = 1; if (prev) XEXP (prev, 1) = XEXP (link, 1); else LOG_LINKS (insn) = XEXP (link, 1); found = 1; } + else + prev = link; } if (! found) @@ -919,6 +921,11 @@ priority (insn) { rtx x = XEXP (prev, 0); + /* If this was a duplicate of a dependence we already deleted, + ignore it. */ + if (RTX_INTEGRATED_P (prev)) + continue; + /* A dependence pointing to a note or deleted insn is always obsolete, because sched_analyze_insn will have created any necessary new dependences which replace it. Notes and deleted |