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From: Aaron Sawdey <acsawdey@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/acsawdey/heads/fusion-combine)] WIP for add-add fusion Date: Tue, 26 Jan 2021 22:42:42 +0000 (GMT) [thread overview] Message-ID: <20210126224242.4B6C23836C6D@sourceware.org> (raw) https://gcc.gnu.org/g:969b08c4c1aefb4c0f2244ca1efed2164b108188 commit 969b08c4c1aefb4c0f2244ca1efed2164b108188 Author: Aaron Sawdey <acsawdey@linux.ibm.com> Date: Mon Jan 25 21:11:52 2021 -0600 WIP for add-add fusion Diff: --- gcc/config/rs6000/genfusion.pl | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/gcc/config/rs6000/genfusion.pl b/gcc/config/rs6000/genfusion.pl index 837af7ac123..1ea08a21a7c 100755 --- a/gcc/config/rs6000/genfusion.pl +++ b/gcc/config/rs6000/genfusion.pl @@ -234,6 +234,47 @@ EOF } } +sub gen_addadd +{ + + my ($kind, $vchr, $op, $mode, $pred, $constraint); + KIND: foreach $kind ('scalar','vector') { + if ( $kind eq 'vector' ) { + $vchr = "v"; + $op = "vaddudm"; + $mode = "VM"; + $pred = "altivec_register_operand"; + $constraint = "v"; + } else { + $vchr = ""; + $op = "add"; + $mode = "GPR"; + $pred = "gpc_reg_operand"; + $constraint = "r"; + } + my $insn = <<"EOF"; +;; add-add fusion pattern generated by gen_addadd +(define_insn "*fuse_${op}_${op}" + [(set (match_operand:${mode} 3 "altivec_register_operand" "=&v,0,1,v") + (add:${mode} + (add:${mode} (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,r"))] + "(TARGET_P10_FUSION && TARGET_P10_FUSION_2LOGICAL)" + "@ + vxor %3,%1,%0\;vxor %3,%3,%2 + vxor %0,%1,%0\;vxor %0,%0,%2 + vxor %1,%1,%0\;vxor %1,%1,%2 + vxor %4,%1,%0\;vxor %3,%4,%2" + [(set_attr "type" "logical") + (set_attr "cost" "6") + (set_attr "length" "8")]) +EOF + } + +} + gen_ld_cmpi_p10(); gen_2logical();
next reply other threads:[~2021-01-26 22:42 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-26 22:42 Aaron Sawdey [this message] 2021-01-26 22:48 Aaron Sawdey 2021-01-27 18:26 Aaron Sawdey 2021-01-30 21:54 Aaron Sawdey
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