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| author | Pat Haugen <pthaugen@us.ibm.com> | 2009-09-29 18:58:56 +0000 |
|---|---|---|
| committer | Pat Haugen <pthaugen@gcc.gnu.org> | 2009-09-29 18:58:56 +0000 |
| commit | e7ada00d3383d76e31b43ce59b246afd4eda811a (patch) | |
| tree | 41e504770d90a7105ecb4372c0dee325ea33fc17 /gcc | |
| parent | 1c1a5fd8f8497bb7b126bc1fa98e6458cd48668c (diff) | |
| download | gcc-e7ada00d3383d76e31b43ce59b246afd4eda811a.zip gcc-e7ada00d3383d76e31b43ce59b246afd4eda811a.tar.gz gcc-e7ada00d3383d76e31b43ce59b246afd4eda811a.tar.bz2 | |
rs6000.c (rs6000_issue_rate): Don't artificially restrict issue_rate in first pass when...
* config/rs6000/rs6000.c (rs6000_issue_rate): Don't artificially
restrict issue_rate in first pass when scheduling for register
pressure.
From-SVN: r152291
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 5 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ac2045b..197cec1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-09-29 Pat Haugen <pthaugen@us.ibm.com> + + * config/rs6000/rs6000.c (rs6000_issue_rate): Don't artificially + restrict issue_rate in first pass when scheduling for register + pressure. + 2009-09-29 Basile Starynkevitch <basile@starynkevitch.net> Rafael Avila de Espindola <espindola@google.com> diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 2de4ffa..cafe2b3 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -21760,8 +21760,9 @@ is_nonpipeline_insn (rtx insn) static int rs6000_issue_rate (void) { - /* Use issue rate of 1 for first scheduling pass to decrease degradation. */ - if (!reload_completed) + /* Unless scheduling for register pressure, use issue rate of 1 for + first scheduling pass to decrease degradation. */ + if (!reload_completed && !flag_sched_pressure) return 1; switch (rs6000_cpu_attr) { |