https://gcc.gnu.org/g:14010241a92479cbcf0bf6cc5a584065821c9173
commit 14010241a92479cbcf0bf6cc5a584065821c9173
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Tue Jun 10 16:17:16 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/vector nand/and 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 810d97963fb9..f70422616ffd 100644
--- a/gcc/config/rs6000/fusion.md
+++ b/gcc/config/rs6000/fusion.md
@@ -1934,20 +1934,23 @@
;; logical-logical fusion pattern generated by gen_logical_addsubf
;; vector vnand -> vand
(define_insn "*fuse_vnand_vand"
- [(set (match_operand:VM 3 "altivec_register_operand" "=&0,&1,&v,v")
- (and:VM (ior:VM (not:VM (match_operand:VM 0 "altivec_register_operand"
"v,v,v,v"))
- (not:VM (match_operand:VM 1
"altivec_register_operand" "v,v,v,v")))
- (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")
+ (and:VM (ior:VM (not:VM (match_operand:VM 0 "vector_fusion_operand"
"v,v,v,wa,v"))
+ (not:VM (match_operand:VM 1 "vector_fusion_operand"
"v,v,v,wa,v")))
+ (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)"
"@
vnand %3,%1,%0\;vand %3,%3,%2
vnand %3,%1,%0\;vand %3,%3,%2
vnand %3,%1,%0\;vand %3,%3,%2
+ xxeval %x3,%x2,%x1,%x0,14
vnand %4,%1,%0\;vand %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 vnor -> vand
diff --git a/gcc/config/rs6000/genfusion.pl b/gcc/config/rs6000/genfusion.pl
index 929257d6c03e..5beabe530a67 100755
--- a/gcc/config/rs6000/genfusion.pl
+++ b/gcc/config/rs6000/genfusion.pl
@@ -223,6 +223,7 @@ sub gen_logical_addsubf
"veqv_vand" => 9,
"vorc_vand" => 11,
"vandc_vandc" => 13,
+ "vnand_vand" => 14,
);
KIND: foreach $kind ('scalar','vector') {
