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something wrong with this opt

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44370 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth
2007-11-27 18:31:30 +00:00
parent 9bdcb393ae
commit 19914ed97f
2 changed files with 27 additions and 12 deletions
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26
lib/Target/Alpha/AlphaInstrInfo.td
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@@ -1086,16 +1086,18 @@ def : Pat<(mul GPRC:$RA, immRemP2:$imm),
(ADDQr (SLr GPRC:$RA, (nearP2X immRemP2:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2:$imm)))>;
//n is below a power of 2
def : Pat<(mul GPRC:$RA, immRem1n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRem1n:$imm)), GPRC:$RA)>;
def : Pat<(mul GPRC:$RA, immRem2n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRem2n:$imm)), (ADDQr GPRC:$RA, GPRC:$RA))>;
def : Pat<(mul GPRC:$RA, immRem3n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRem3n:$imm)), (S4SUBQr GPRC:$RA, GPRC:$RA))>;
def : Pat<(mul GPRC:$RA, immRem4n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRem4n:$imm)), (SLi GPRC:$RA, 2))>;
def : Pat<(mul GPRC:$RA, immRem5n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRem5n:$imm)), (S4ADDQr GPRC:$RA, GPRC:$RA))>;
def : Pat<(mul GPRC:$RA, immRemP2n:$imm),
(SUBQr (SLr GPRC:$RA, (nearP2X immRemP2n:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2n:$imm)))>;
//FIXME: figure out why something is truncating the imm to 32bits
// this will fix 2007-11-27-mulneg3
//def : Pat<(mul GPRC:$RA, immRem1n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRem1n:$imm)), GPRC:$RA)>;
//def : Pat<(mul GPRC:$RA, immRem2n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRem2n:$imm)), (ADDQr GPRC:$RA, GPRC:$RA))>;
//def : Pat<(mul GPRC:$RA, immRem3n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRem3n:$imm)), (S4SUBQr GPRC:$RA, GPRC:$RA))>;
//def : Pat<(mul GPRC:$RA, immRem4n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRem4n:$imm)), (SLi GPRC:$RA, 2))>;
//def : Pat<(mul GPRC:$RA, immRem5n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRem5n:$imm)), (S4ADDQr GPRC:$RA, GPRC:$RA))>;
//def : Pat<(mul GPRC:$RA, immRemP2n:$imm),
// (SUBQr (SLr GPRC:$RA, (nearP2X immRemP2n:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2n:$imm)))>;
} //Added complexity