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Generate more efficient code for casting booleans to integers (no sign extension required)

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llvm-svn: 13439
This commit is contained in:
Chris Lattner 2004-05-09 22:28:45 +00:00
parent 8ccfc21a0f
commit d18c637a37
1 changed files with 1 additions and 1 deletions
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2
lib/Target/X86/InstSelectSimple.cpp
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@ -3051,7 +3051,7 @@ void ISel::emitCastOperation(MachineBasicBlock *BB,
{ X86::MOVZX16rr8, X86::MOVZX32rr8, X86::MOVZX32rr16, X86::MOV32rr } // u { X86::MOVZX16rr8, X86::MOVZX32rr8, X86::MOVZX32rr16, X86::MOV32rr } // u
}; };
bool isUnsigned = SrcTy->isUnsigned(); bool isUnsigned = SrcTy->isUnsigned() || SrcTy == Type::BoolTy;
BuildMI(*BB, IP, Opc[isUnsigned][SrcClass + DestClass - 1], 1, BuildMI(*BB, IP, Opc[isUnsigned][SrcClass + DestClass - 1], 1,
DestReg).addReg(SrcReg); DestReg).addReg(SrcReg);