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| author | Vladimir N. Makarov <vmakarov@redhat.com> | 2020-02-28 11:27:30 -0500 |
|---|---|---|
| committer | Vladimir N. Makarov <vmakarov@redhat.com> | 2020-02-28 11:27:30 -0500 |
| commit | f3ce088645e5305d932380c7520809181b2d2eb9 (patch) | |
| tree | 924a716ec604561d25ef7bbd3bb07c250cdfa2cb | |
| parent | 349297b6e69c5af74ed26a333488b1bf994dbcce (diff) | |
| download | gcc-f3ce088645e5305d932380c7520809181b2d2eb9.zip gcc-f3ce088645e5305d932380c7520809181b2d2eb9.tar.gz gcc-f3ce088645e5305d932380c7520809181b2d2eb9.tar.bz2 | |
One more patch for PR93564: Prefer smaller hard regno when we do not honor reg alloc order.
2020-02-28 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/93564
* ira-color.c (assign_hard_reg): Prefer smaller hard regno when we
do not honor reg alloc order.
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ira-color.c | 4 |
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f6a9ae2..1451807 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2020-02-28 Vladimir Makarov <vmakarov@redhat.com> + + PR rtl-optimization/93564 + * ira-color.c (assign_hard_reg): Prefer smaller hard regno when we + do not honor reg alloc order. + 2020-02-27 Joel Hutton <Joel.Hutton@arm.com> PR target/87612 diff --git a/gcc/ira-color.c b/gcc/ira-color.c index 0ffdd19..a2bf108 100644 --- a/gcc/ira-color.c +++ b/gcc/ira-color.c @@ -1925,7 +1925,9 @@ assign_hard_reg (ira_allocno_t a, bool retry_p) } if (min_cost > cost) min_cost = cost; - if (min_full_cost > full_cost) + if (min_full_cost > full_cost + || (!HONOR_REG_ALLOC_ORDER && min_full_cost == full_cost + && best_hard_regno > hard_regno)) { min_full_cost = full_cost; best_hard_regno = hard_regno; |