https://gcc.gnu.org/g:c29e8af614954a24935024b7662144e94a313b94
commit c29e8af614954a24935024b7662144e94a313b94
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Tue Jun 10 18:04:39 2025 -0400
PR target/117251: Add PowerPC XXEVAL support to speed up SHA3 calculations
2025-06-10 Michael Meissner <meiss...@linux.ibm.com>
gcc/
PR target/117251
* config/rs6000/fusion.md: Regenerate.
* config/rs6000/genfusion.pl (gen_logical_addsubf): Add support to
generate vector eqv => nand fusion if XXEVAL is supported.
Diff:
---
gcc/config/rs6000/fusion.md | 15 +++++++++------
gcc/config/rs6000/genfusion.pl | 1 +
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/gcc/config/rs6000/fusion.md b/gcc/config/rs6000/fusion.md
index 96d8951049c9..c1be0e5ff8f1 100644
--- a/gcc/config/rs6000/fusion.md
+++ b/gcc/config/rs6000/fusion.md
@@ -2372,20 +2372,23 @@
;; logical-logical fusion pattern generated by gen_logical_addsubf
;; vector veqv -> vnand
(define_insn "*fuse_veqv_vnand"
- [(set (match_operand:VM 3 "altivec_register_operand" "=&0,&1,&v,v")
- (ior:VM (not:VM (not:VM (xor:VM (match_operand:VM 0
"altivec_register_operand" "v,v,v,v")
- (match_operand:VM 1 "altivec_register_operand"
"v,v,v,v"))))
- (not:VM (match_operand:VM 2 "altivec_register_operand"
"v,v,v,v"))))
- (clobber (match_scratch:VM 4 "=X,X,X,&v"))]
+ [(set (match_operand:VM 3 "vector_fusion_operand" "=&0,&1,&v,wa,v")
+ (ior:VM (not:VM (not:VM (xor:VM (match_operand:VM 0
"vector_fusion_operand" "v,v,v,wa,v")
+ (match_operand:VM 1 "vector_fusion_operand"
"v,v,v,wa,v"))))
+ (not:VM (match_operand:VM 2 "vector_fusion_operand"
"v,v,v,wa,v"))))
+ (clobber (match_scratch:VM 4 "=X,X,X,X,&v"))]
"(TARGET_P10_FUSION)"
"@
veqv %3,%1,%0\;vnand %3,%3,%2
veqv %3,%1,%0\;vnand %3,%3,%2
veqv %3,%1,%0\;vnand %3,%3,%2
+ xxeval %x3,%x2,%x1,%x0,246
veqv %4,%1,%0\;vnand %3,%4,%2"
[(set_attr "type" "fused_vector")
(set_attr "cost" "6")
- (set_attr "length" "8")])
+ (set_attr "length" "8")
+ (set_attr "prefixed" "*,*,*,yes,*")
+ (set_attr "isa" "*,*,*,xxeval,*")])
;; logical-logical fusion pattern generated by gen_logical_addsubf
;; vector vnand -> vnand
diff --git a/gcc/config/rs6000/genfusion.pl b/gcc/config/rs6000/genfusion.pl
index 77d3e999eb93..4c70237d2d27 100755
--- a/gcc/config/rs6000/genfusion.pl
+++ b/gcc/config/rs6000/genfusion.pl
@@ -253,6 +253,7 @@ sub gen_logical_addsubf
"vnand_vor" => 239,
"vnand_vnand" => 241,
"vorc_vnand" => 244,
+ "veqv_vnand" => 246,
);
KIND: foreach $kind ('scalar','vector') {
