* [PATCH][AArch64] Handle FLOAT and UNSIGNED_FLOAT in rtx costs
@ 2015-05-01 8:21 Kyrill Tkachov
2015-05-01 12:30 ` Marcus Shawcroft
0 siblings, 1 reply; 2+ messages in thread
From: Kyrill Tkachov @ 2015-05-01 8:21 UTC (permalink / raw)
To: GCC Patches; +Cc: Marcus Shawcroft, Richard Earnshaw, James Greenhalgh
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Hi all,
This patch adds handling of the FLOAT and UNSIGNED_FLOAT cases in rtx costs that map down to
the scvtf and ucvtf instructions respectively. We use the fromint cost field for them.
Tested on aarch64-none-elf.
Ok for trunk?
Thanks,
Kyrill
2015-05-01 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/aarch64/aarch64.c (aarch64_rtx_costs): Handle FLOAT and
UNSIGNED_FLOAT.
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commit 3a14409ce63cac482e48ab731cff0267f7b2ce53
Author: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date: Wed Mar 11 12:04:13 2015 +0000
[AArch64] Handle FLOAT and UNSIGNED_FLOAT in rtx costs
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index d1635f4..8661896 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -6497,6 +6497,12 @@ cost_plus:
*cost += rtx_cost (op2, FMA, 2, speed);
return true;
+ case FLOAT:
+ case UNSIGNED_FLOAT:
+ if (speed)
+ *cost += extra_cost->fp[mode == DFmode].fromint;
+ return false;
+
case FLOAT_EXTEND:
if (speed)
*cost += extra_cost->fp[mode == DFmode].widen;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH][AArch64] Handle FLOAT and UNSIGNED_FLOAT in rtx costs
2015-05-01 8:21 [PATCH][AArch64] Handle FLOAT and UNSIGNED_FLOAT in rtx costs Kyrill Tkachov
@ 2015-05-01 12:30 ` Marcus Shawcroft
0 siblings, 0 replies; 2+ messages in thread
From: Marcus Shawcroft @ 2015-05-01 12:30 UTC (permalink / raw)
To: Kyrill Tkachov
Cc: GCC Patches, Marcus Shawcroft, Richard Earnshaw, James Greenhalgh
On 1 May 2015 at 09:21, Kyrill Tkachov <kyrylo.tkachov@arm.com> wrote:
> 2015-05-01 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
>
> * config/aarch64/aarch64.c (aarch64_rtx_costs): Handle FLOAT and
> UNSIGNED_FLOAT.
OK /Marcus
^ permalink raw reply [flat|nested] 2+ messages in thread
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