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| author | Junmo Park <junmoz.park@samsung.com> | 2015-08-13 00:15:02 +0900 |
|---|---|---|
| committer | Junmo Park <junmoz.park@samsung.com> | 2015-08-22 23:32:15 +0900 |
| commit | f6a5feaff996764cdc4a318aef9e3747a7907f56 (patch) | |
| tree | f47d5b49287541fdc592544f50461364bdeddb57 /gcc-4.9/gcc/config/aarch64/aarch64.c | |
| parent | adabb586ace96357b1cc9a5da7a482a3fdd8e470 (diff) | |
| download | toolchain_gcc-f6a5feaff996764cdc4a318aef9e3747a7907f56.tar.gz toolchain_gcc-f6a5feaff996764cdc4a318aef9e3747a7907f56.tar.bz2 toolchain_gcc-f6a5feaff996764cdc4a318aef9e3747a7907f56.zip | |
[4.9] Adjust generic move costs for aarch64. Backport from trunk
2014-11-19 Wilco Dijkstra <wdijkstr@arm.com>
PR target/61915
* config/aarch64/aarch64.c (generic_regmove_cost): Increase FP move cost.
Change-Id: Ifaa0c2d1a72955e42f3882c68d1e52acf5a790e7
Signed-off-by: Junmo Park <junmoz.park@samsung.com>
Diffstat (limited to 'gcc-4.9/gcc/config/aarch64/aarch64.c')
| -rw-r--r-- | gcc-4.9/gcc/config/aarch64/aarch64.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64.c b/gcc-4.9/gcc/config/aarch64/aarch64.c index 72d1231ec..9c4ced486 100644 --- a/gcc-4.9/gcc/config/aarch64/aarch64.c +++ b/gcc-4.9/gcc/config/aarch64/aarch64.c @@ -184,8 +184,10 @@ __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), /* We currently do not provide direct support for TFmode Q->Q move. Therefore we need to raise the cost above 2 in order to have reload handle the situation. */ |