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Generate LA and ADDIS when possible.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24395 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-11-17 17:52:01 +00:00
parent 1566613ca4
commit 490ad08097
1 changed files with 6 additions and 4 deletions
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10
lib/Target/PowerPC/PPCInstrInfo.td
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@ -256,7 +256,8 @@ def ADDIS : DForm_2<15, (ops GPRC:$rD, GPRC:$rA, symbolHi:$imm),
[(set GPRC:$rD, (add GPRC:$rA, imm16Shifted:$imm))]>;
def LA : DForm_2<14, (ops GPRC:$rD, GPRC:$rA, symbolLo:$sym),
"la $rD, $sym($rA)", IntGeneral,
[]>;
[(set GPRC:$rD, (add GPRC:$rA,
(PPClo tglobaladdr:$sym, 0)))]>;
def MULLI : DForm_2< 7, (ops GPRC:$rD, GPRC:$rA, s16imm:$imm),
"mulli $rD, $rA, $imm", IntMulLI,
[(set GPRC:$rD, (mul GPRC:$rA, immSExt16:$imm))]>;
@ -786,9 +787,10 @@ def : Pat<(srl G8RC:$in, imm:$imm),
(RLDICL G8RC:$in, (SRL64 imm:$imm), imm:$imm)>;
// Hi and Lo for Darwin Global Addresses.
def : Pat<(PPChi tglobaladdr:$in, (i32 0)), (LIS node:$in)>;
def : Pat<(PPClo tglobaladdr:$in, (i32 0)), (LI node:$in)>;
def : Pat<(PPChi tglobaladdr:$in, (i32 0)), (LIS tglobaladdr:$in)>;
def : Pat<(PPClo tglobaladdr:$in, (i32 0)), (LI tglobaladdr:$in)>;
def : Pat<(add GPRC:$in, (PPChi tglobaladdr:$g, 0)),
(ADDIS GPRC:$in, tglobaladdr:$g)>;
// Same as above, but using a temporary. FIXME: implement temporaries :)
/*