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| author | Jeff Law <law@gcc.gnu.org> | 1999-02-05 04:43:22 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1999-02-05 04:43:22 -0700 |
| commit | 342d9c89f6b404a8d3ef56a61705982f1d70f719 (patch) | |
| tree | 2d35ce1a5fa023aa69e324a227b7f55bc5139ea6 | |
| parent | 29ed8a2760fc8eafe87a10cb08fbb1cd0c653ce6 (diff) | |
| download | gcc-342d9c89f6b404a8d3ef56a61705982f1d70f719.zip gcc-342d9c89f6b404a8d3ef56a61705982f1d70f719.tar.gz gcc-342d9c89f6b404a8d3ef56a61705982f1d70f719.tar.bz2 | |
haifa-sched.c (add_dependence): Do not add a dependency on a note.
h
* haifa-sched.c (add_dependence): Do not add a dependency on a
note.
From-SVN: r25044
| -rw-r--r-- | gcc/haifa-sched.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index b0d34b6..af9161f 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -860,6 +860,12 @@ add_dependence (insn, elem, dep_type) if (insn == elem) return; + /* We can get a dependency on deleted insns due to optimizations in + the register allocation and reloading or due to splitting. Any + such dependency is useless and can be ignored. */ + if (GET_CODE (elem) == NOTE) + return; + /* If elem is part of a sequence that must be scheduled together, then make the dependence point to the last insn of the sequence. When HAVE_cc0, it is possible for NOTEs to exist between users and |