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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-05 11:43:22 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-05 11:43:22 +0000 |
| commit | eab71b5a82dad72201f123d0e23c24ef144287da (patch) | |
| tree | 2d35ce1a5fa023aa69e324a227b7f55bc5139ea6 /gcc/haifa-sched.c | |
| parent | 9af93b8103d6d42a83b56e81d9bc2209ce4391b0 (diff) | |
| download | gcc-eab71b5a82dad72201f123d0e23c24ef144287da.tar.gz | |
h
* haifa-sched.c (add_dependence): Do not add a dependency on a
note.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25044 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/haifa-sched.c')
| -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 b0d34b6f67d..af9161fb5be 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 |