diff options
| author | jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-11-19 14:40:26 +0000 |
|---|---|---|
| committer | jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-11-19 14:40:26 +0000 |
| commit | aa577f0f642afbbdd4820dac4c8c6be17dc4d827 (patch) | |
| tree | d12163c0842e97969ad0b96d777f324cf9ac28a6 | |
| parent | f4ef65f4821d853b1f23b592a104714449bcfab8 (diff) | |
| download | gcc-aa577f0f642afbbdd4820dac4c8c6be17dc4d827.tar.gz | |
[AArch64] Adjust generic move costs
2014-11-19 Wilco Dijkstra <wdijkstr@arm.com>
PR target/61915
* config/aarch64/aarch64.c (generic_regmove_cost): Increase FP move cost.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@217780 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2c13f13e4a2..45e12cbd160 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-11-19 Wilco Dijkstra <wdijkstr@arm.com> + + PR target/61915 + * config/aarch64/aarch64.c (generic_regmove_cost): Increase FP move + cost. + 2014-11-19 Marek Polacek <polacek@redhat.com> PR sanitizer/63690 diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index a53f942ad7f..38321237eb3 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -229,8 +229,10 @@ __extension__ static const struct cpu_regmove_cost generic_regmove_cost = { NAMED_PARAM (GP2GP, 1), - NAMED_PARAM (GP2FP, 2), - NAMED_PARAM (FP2GP, 2), + /* Avoid the use of slow int<->fp moves for spilling by setting + their cost higher than memmov_cost. */ + NAMED_PARAM (GP2FP, 5), + NAMED_PARAM (FP2GP, 5), NAMED_PARAM (FP2FP, 2) }; |