diff mbox series

[V2] MATCH: Optimize COND_ADD reduction pattern

Message ID 20230926095847.1296780-1-juzhe.zhong@rivai.ai
State Unresolved
Headers
Series [V2] MATCH: Optimize COND_ADD reduction pattern |

Checks

Context Check Description
snail/gcc-patch-check warning Git am fail log

Commit Message

juzhe.zhong@rivai.ai Sept. 26, 2023, 9:58 a.m. UTC 
  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 | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/gcc/match.pd b/gcc/match.pd
index 3ce90c3333b..790d956fe69 100644
--- a/gcc/match.pd
+++ b/gcc/match.pd
@@ -8863,8 +8863,11 @@  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)
+	|| (FLOAT_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