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author | Akira Hatanaka <ahatanaka@mips.com> | 2012-06-13 20:33:18 +0000 |
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committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-06-13 20:33:18 +0000 |
commit | 8782707f5074ab3951eb6424394bc8d2a2fa584a (patch) | |
tree | ee883b378ee78e6092120edb704593ce17bc1107 /lib/Target/Mips/MipsISelDAGToDAG.cpp | |
parent | e193b325837bee5f9a848a16077a6e156fe88fba (diff) | |
download | llvm-8782707f5074ab3951eb6424394bc8d2a2fa584a.tar.gz llvm-8782707f5074ab3951eb6424394bc8d2a2fa584a.tar.bz2 llvm-8782707f5074ab3951eb6424394bc8d2a2fa584a.tar.xz |
Implement a DAGCombine in MipsISelLowering.cpp which transforms the following
pattern:
(add v0, (add v1, abs_lo(tjt))) => (add (add v0, v1), abs_lo(tjt))
"tjt" is a TargetJumpTable node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158419 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsISelDAGToDAG.cpp')
-rw-r--r-- | lib/Target/Mips/MipsISelDAGToDAG.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp index 62f7cdea3c..b0513c3127 100644 --- a/lib/Target/Mips/MipsISelDAGToDAG.cpp +++ b/lib/Target/Mips/MipsISelDAGToDAG.cpp @@ -335,11 +335,11 @@ SelectAddr(SDNode *Parent, SDValue Addr, SDValue &Base, SDValue &Offset) { // lui $2, %hi($CPI1_0) // lwc1 $f0, %lo($CPI1_0)($2) if (Addr.getOperand(1).getOpcode() == MipsISD::Lo) { - SDValue LoVal = Addr.getOperand(1); - if (isa<ConstantPoolSDNode>(LoVal.getOperand(0)) || - isa<GlobalAddressSDNode>(LoVal.getOperand(0))) { + SDValue LoVal = Addr.getOperand(1), Opnd0 = LoVal.getOperand(0); + if (isa<ConstantPoolSDNode>(Opnd0) || isa<GlobalAddressSDNode>(Opnd0) || + isa<JumpTableSDNode>(Opnd0)) { Base = Addr.getOperand(0); - Offset = LoVal.getOperand(0); + Offset = Opnd0; return true; } } |