https://gcc.gnu.org/g:c5ffa5bd175214d557b2bec0ee3ea6bd64745ac7
commit c5ffa5bd175214d557b2bec0ee3ea6bd64745ac7 Author: Michael Meissner <meiss...@linux.ibm.com> Date: Tue Jun 10 16:53:16 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 xor => or 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 a848b21bc3e2..1d4b3c970c7f 100644 --- a/gcc/config/rs6000/fusion.md +++ b/gcc/config/rs6000/fusion.md @@ -2762,20 +2762,23 @@ ;; logical-logical fusion pattern generated by gen_logical_addsubf ;; vector vxor -> vor (define_insn "*fuse_vxor_vor" - [(set (match_operand:VM 3 "altivec_register_operand" "=&0,&1,&v,v") - (ior: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")) - (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 (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")) + (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)" "@ vxor %3,%1,%0\;vor %3,%3,%2 vxor %3,%1,%0\;vor %3,%3,%2 vxor %3,%1,%0\;vor %3,%3,%2 + xxeval %x3,%x2,%x1,%x0,111 vxor %4,%1,%0\;vor %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 vand -> vorc diff --git a/gcc/config/rs6000/genfusion.pl b/gcc/config/rs6000/genfusion.pl index b9ff6c99b95e..4ec38beccb9c 100755 --- a/gcc/config/rs6000/genfusion.pl +++ b/gcc/config/rs6000/genfusion.pl @@ -234,6 +234,7 @@ sub gen_logical_addsubf "vorc_vorc" => 79, "veqv_vnor" => 96, "vxor_vxor" => 105, + "vxor_vor" => 111, ); KIND: foreach $kind ('scalar','vector') {