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[SLPVectorizer] getSameOpcode - remove unusued alternate code [NFC]

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We early-out for the case where we don't use alternate opcodes, so no need to check for it later.

llvm-svn: 334587
This commit is contained in:
Simon Pilgrim 2018-06-13 10:14:27 +00:00
parent e3e2fa9c0a
commit bf4a2effd1
1 changed files with 1 additions and 4 deletions
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5
lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -431,11 +431,8 @@ static InstructionsState getSameOpcode(ArrayRef<Value *> VL) {
for (int Cnt = 0, E = VL.size(); Cnt < E; Cnt++) {
auto *I = cast<Instruction>(VL[Cnt]);
unsigned InstOpcode = I->getOpcode();
if ((Res.HasAltOpcodes &&
InstOpcode != (isOdd(Cnt) ? AltOpcode : Opcode)) ||
(!Res.HasAltOpcodes && InstOpcode != Opcode)) {
if (InstOpcode != (isOdd(Cnt) ? AltOpcode : Opcode))
return InstructionsState(OpInst, 0, false);
}
}
return InstructionsState(OpInst, Opcode, Res.HasAltOpcodes);
}