https://gcc.gnu.org/g:dbc3e4ec82fcfcf17f12065b7b7e71cca3af9c19
commit dbc3e4ec82fcfcf17f12065b7b7e71cca3af9c19
Author: Michael Meissner <meiss...@linux.ibm.com>
Date: Tue Jun 10 17:34:06 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 orc => xor 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 cb1ad8b4c0cc..3d7e6502b027 100644
--- a/gcc/config/rs6000/fusion.md
+++ b/gcc/config/rs6000/fusion.md
@@ -3071,20 +3071,23 @@
;; logical-logical fusion pattern generated by gen_logical_addsubf
;; vector vorc -> vxor
(define_insn "*fuse_vorc_vxor"
- [(set (match_operand:VM 3 "altivec_register_operand" "=&0,&1,&v,v")
- (xor:VM (ior:VM (not:VM (match_operand:VM 0 "altivec_register_operand"
"v,v,v,v"))
- (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")
+ (xor:VM (ior:VM (not: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"))
+ (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)"
"@
vorc %3,%1,%0\;vxor %3,%3,%2
vorc %3,%1,%0\;vxor %3,%3,%2
vorc %3,%1,%0\;vxor %3,%3,%2
+ xxeval %x3,%x2,%x1,%x0,180
vorc %4,%1,%0\;vxor %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 vxor -> vxor
diff --git a/gcc/config/rs6000/genfusion.pl b/gcc/config/rs6000/genfusion.pl
index 9400aed267a6..15f931baad33 100755
--- a/gcc/config/rs6000/genfusion.pl
+++ b/gcc/config/rs6000/genfusion.pl
@@ -244,6 +244,7 @@ sub gen_logical_addsubf
"vxor_vnor" => 144,
"veqv_vxor" => 150,
"veqv_vor" => 159,
+ "vorc_vxor" => 180,
);
KIND: foreach $kind ('scalar','vector') {
