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
