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| author | Jeff Law <law@gcc.gnu.org> | 2002-05-29 10:53:46 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2002-05-29 10:53:46 -0600 |
| commit | 243e5500360c548ed93dd3f9fb06e7bf50420ec8 (patch) | |
| tree | c2e12f795a472858ce2552909194ce2d7ba71110 /gcc/haifa-sched.c | |
| parent | 45b1f7c746372e7dc48d79c9b5089ce12cbef1e5 (diff) | |
| download | gcc-243e5500360c548ed93dd3f9fb06e7bf50420ec8.zip gcc-243e5500360c548ed93dd3f9fb06e7bf50420ec8.tar.gz gcc-243e5500360c548ed93dd3f9fb06e7bf50420ec8.tar.bz2 | |
haifa-sched.c (schedule_block): Do not count USE and CLOBBER insns against the issue rate.
* haifa-sched.c (schedule_block): Do not count USE and CLOBBER
insns against the issue rate.
* sched-deps.c (sched_create_groups_for_libcalls): New function.
(sched_analyze): Use it.
From-SVN: r54004
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 63a3135..a03b9b3 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -2179,7 +2179,10 @@ 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); |