* [PATCH] MATCH: Optimize COND_ADD reduction pattern
@ 2023-09-26 8:25 Juzhe-Zhong
2023-09-26 9:41 ` Richard Biener
0 siblings, 1 reply; 3+ messages in thread
From: Juzhe-Zhong @ 2023-09-26 8:25 UTC (permalink / raw)
To: gcc-patches; +Cc: richard.sandiford, rguenther, Juzhe-Zhong
Current COND_ADD reduction pattern can't optimize floating-point vector.
As Richard suggested: https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631336.html
Allow COND_ADD reduction pattern to optimize floating-point vector.
Bootstrap and Regression is running.
Ok for trunk if tests pass ?
gcc/ChangeLog:
* match.pd: Optimize COND_ADD reduction pattern.
---
gcc/match.pd | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/gcc/match.pd b/gcc/match.pd
index 5061c19e086..398beaebd27 100644
--- a/gcc/match.pd
+++ b/gcc/match.pd
@@ -8863,8 +8863,10 @@ and,
c = mask1 && mask2 ? d + b : d. */
(simplify
- (IFN_COND_ADD @0 @1 (vec_cond @2 @3 integer_zerop) @1)
- (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1))
+ (IFN_COND_ADD @0 @1 (vec_cond @2 @3 zerop@4) @1)
+ (if (ANY_INTEGRAL_TYPE_P (type)
+ || fold_real_zero_addition_p (type, NULL_TREE, @4, 0))
+ (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1)))
/* Detect simplication for a conditional length reduction where
--
2.36.3
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] MATCH: Optimize COND_ADD reduction pattern
2023-09-26 8:25 [PATCH] MATCH: Optimize COND_ADD reduction pattern Juzhe-Zhong
@ 2023-09-26 9:41 ` Richard Biener
2023-09-26 9:59 ` juzhe.zhong
0 siblings, 1 reply; 3+ messages in thread
From: Richard Biener @ 2023-09-26 9:41 UTC (permalink / raw)
To: Juzhe-Zhong; +Cc: gcc-patches, richard.sandiford
On Tue, 26 Sep 2023, Juzhe-Zhong wrote:
> Current COND_ADD reduction pattern can't optimize floating-point vector.
> As Richard suggested: https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631336.html
> Allow COND_ADD reduction pattern to optimize floating-point vector.
>
> Bootstrap and Regression is running.
>
> Ok for trunk if tests pass ?
I just wondered about fixed point - zerop seems to also allow
fixed_zerop. Maybe do
if (ANY_INTEGRAL_TYPE_P (type)
|| (FLOAT_TYPE_P (type)
&& fold_real_zero_addition_p (type, NULL_TREE, @4, 0)))
(also for the other patch) to avoid touching the fixed point case.
Richard.
> gcc/ChangeLog:
>
> * match.pd: Optimize COND_ADD reduction pattern.
>
> ---
> gcc/match.pd | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/match.pd b/gcc/match.pd
> index 5061c19e086..398beaebd27 100644
> --- a/gcc/match.pd
> +++ b/gcc/match.pd
> @@ -8863,8 +8863,10 @@ and,
>
> c = mask1 && mask2 ? d + b : d. */
> (simplify
> - (IFN_COND_ADD @0 @1 (vec_cond @2 @3 integer_zerop) @1)
> - (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1))
> + (IFN_COND_ADD @0 @1 (vec_cond @2 @3 zerop@4) @1)
> + (if (ANY_INTEGRAL_TYPE_P (type)
> + || fold_real_zero_addition_p (type, NULL_TREE, @4, 0))
> + (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1)))
>
> /* Detect simplication for a conditional length reduction where
>
>
--
Richard Biener <rguenther@suse.de>
SUSE Software Solutions Germany GmbH,
Frankenstrasse 146, 90461 Nuernberg, Germany;
GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Re: [PATCH] MATCH: Optimize COND_ADD reduction pattern
2023-09-26 9:41 ` Richard Biener
@ 2023-09-26 9:59 ` juzhe.zhong
0 siblings, 0 replies; 3+ messages in thread
From: juzhe.zhong @ 2023-09-26 9:59 UTC (permalink / raw)
To: rguenther; +Cc: gcc-patches, richard.sandiford
[-- Attachment #1: Type: text/plain, Size: 2067 bytes --]
Address comments：
V3 COND_LEN_ADD：https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631350.html
V2 COND_ADD: https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631352.html
Thanks.
juzhe.zhong@rivai.ai
From: Richard Biener
Date: 2023-09-26 17:41
To: Juzhe-Zhong
CC: gcc-patches; richard.sandiford
Subject: Re: [PATCH] MATCH: Optimize COND_ADD reduction pattern
On Tue, 26 Sep 2023, Juzhe-Zhong wrote:
> Current COND_ADD reduction pattern can't optimize floating-point vector.
> As Richard suggested: https://gcc.gnu.org/pipermail/gcc-patches/2023-September/631336.html
> Allow COND_ADD reduction pattern to optimize floating-point vector.
>
> Bootstrap and Regression is running.
>
> Ok for trunk if tests pass ?
I just wondered about fixed point - zerop seems to also allow
fixed_zerop. Maybe do
if (ANY_INTEGRAL_TYPE_P (type)
|| (FLOAT_TYPE_P (type)
&& fold_real_zero_addition_p (type, NULL_TREE, @4, 0)))
(also for the other patch) to avoid touching the fixed point case.
Richard.
> gcc/ChangeLog:
>
> * match.pd: Optimize COND_ADD reduction pattern.
>
> ---
> gcc/match.pd | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/match.pd b/gcc/match.pd
> index 5061c19e086..398beaebd27 100644
> --- a/gcc/match.pd
> +++ b/gcc/match.pd
> @@ -8863,8 +8863,10 @@ and,
>
> c = mask1 && mask2 ? d + b : d. */
> (simplify
> - (IFN_COND_ADD @0 @1 (vec_cond @2 @3 integer_zerop) @1)
> - (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1))
> + (IFN_COND_ADD @0 @1 (vec_cond @2 @3 zerop@4) @1)
> + (if (ANY_INTEGRAL_TYPE_P (type)
> + || fold_real_zero_addition_p (type, NULL_TREE, @4, 0))
> + (IFN_COND_ADD (bit_and @0 @2) @1 @3 @1)))
>
> /* Detect simplication for a conditional length reduction where
>
>
--
Richard Biener <rguenther@suse.de>
SUSE Software Solutions Germany GmbH,
Frankenstrasse 146, 90461 Nuernberg, Germany;
GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-09-26 8:25 [PATCH] MATCH: Optimize COND_ADD reduction pattern Juzhe-Zhong
2023-09-26 9:41 ` Richard Biener
2023-09-26 9:59 ` juzhe.zhong
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