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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-06-12 17:43:42 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-06-12 17:43:42 +0000 |
| commit | db8012c28c1b8de4204fe51ffc2c6fd5026f8723 (patch) | |
| tree | 38c3f161a3402b74fc0012e7c4cdb572f78a9b5a /gcc/sched.c | |
| parent | e2619b7143f391ae40921cb9f306fbc0bedd3db9 (diff) | |
| download | gcc-db8012c28c1b8de4204fe51ffc2c6fd5026f8723.tar.gz | |
(add_dependence): Reject CODE_LABELs when searching for
last insn of a sched group.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@4667 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index 8ddf4bd1e43..2fec9bcf9bb 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -844,7 +844,12 @@ add_dependence (insn, elem, dep_type) { /* Notes will never intervene here though, so don't bother checking for them. */ - while (NEXT_INSN (next) && SCHED_GROUP_P (NEXT_INSN (next))) + /* We must reject CODE_LABELs, so that we don't get confused by one + that has LABEL_PRESERVE_P set, which is represented by the same + bit in the rtl as SCHED_GROUP_P. A CODE_LABEL can never be + SCHED_GROUP_P. */ + while (NEXT_INSN (next) && SCHED_GROUP_P (NEXT_INSN (next)) + && GET_CODE (NEXT_INSN (next)) != CODE_LABEL) next = NEXT_INSN (next); /* Again, don't depend an insn on itself. */ |