* [PATCH 1/2] xtensa: Add RTX costs for if_then_else
@ 2022-07-29 19:31 Takayuki 'January June' Suwa
2022-07-30 4:15 ` Max Filippov
0 siblings, 1 reply; 2+ messages in thread
From: Takayuki 'January June' Suwa @ 2022-07-29 19:31 UTC (permalink / raw)
To: GCC Patches
It takes one machine instruction for both condtional branch and move.
gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_rtx_costs):
Add new case for IF_THEN_ELSE.
---
gcc/config/xtensa/xtensa.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index a851a7ae6b3..6ac879c38fb 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -4273,6 +4273,7 @@ xtensa_rtx_costs (rtx x, machine_mode mode, int outer_code,
case ZERO_EXTRACT:
case ZERO_EXTEND:
+ case IF_THEN_ELSE:
*total = COSTS_N_INSNS (1);
return true;
--
2.20.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH 1/2] xtensa: Add RTX costs for if_then_else
2022-07-29 19:31 [PATCH 1/2] xtensa: Add RTX costs for if_then_else Takayuki 'January June' Suwa
@ 2022-07-30 4:15 ` Max Filippov
0 siblings, 0 replies; 2+ messages in thread
From: Max Filippov @ 2022-07-30 4:15 UTC (permalink / raw)
To: Takayuki 'January June' Suwa; +Cc: GCC Patches
On Fri, Jul 29, 2022 at 12:34 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> It takes one machine instruction for both condtional branch and move.
>
> gcc/ChangeLog:
>
> * config/xtensa/xtensa.cc (xtensa_rtx_costs):
> Add new case for IF_THEN_ELSE.
> ---
> gcc/config/xtensa/xtensa.cc | 1 +
> 1 file changed, 1 insertion(+)
Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master.
--
Thanks.
-- Max
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-07-29 19:31 [PATCH 1/2] xtensa: Add RTX costs for if_then_else Takayuki 'January June' Suwa
2022-07-30 4:15 ` Max Filippov
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