diff options
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index b59f7e1cf92..0dc84e5b7c2 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -2166,7 +2166,10 @@ schedule_block (b, rgn_n_insns) can_issue_more = (*targetm.sched.variable_issue) (sched_dump, sched_verbose, insn, can_issue_more); - else + /* A naked CLOBBER or USE generates no instruction, so do + not count them against the issue rate. */ + else if (GET_CODE (PATTERN (insn)) != USE + && GET_CODE (PATTERN (insn)) != CLOBBER) can_issue_more--; schedule_insn (insn, &ready, clock_var); |