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[X86] Apply clang-format to detectUSatPattern. NFCI. 

Cleanup from D42544

llvm-svn: 323439
This commit is contained in:
Simon Pilgrim 2018-01-25 16:38:56 +00:00
parent 16610b0a57
commit 09c56b799f
1 changed files with 4 additions and 5 deletions
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9
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -34294,7 +34294,7 @@ static bool isSATValidOnAVX512Subtarget(EVT SrcVT, EVT DstVT,
return false; return false;
} }
/// Detect a pattern of truncation with saturation: /// Detect a pattern of truncation with unsigned saturation:
/// (truncate (umin (x, unsigned_max_of_dest_type)) to dest_type). /// (truncate (umin (x, unsigned_max_of_dest_type)) to dest_type).
/// Return the source value to be truncated or SDValue() if the pattern was not /// Return the source value to be truncated or SDValue() if the pattern was not
/// matched. /// matched.
@ -34302,16 +34302,15 @@ static SDValue detectUSatPattern(SDValue In, EVT VT) {
if (In.getOpcode() != ISD::UMIN) if (In.getOpcode() != ISD::UMIN)
return SDValue(); return SDValue();
//Saturation with truncation. We truncate from InVT to VT. // Saturation with truncation. We truncate from InVT to VT.
assert(In.getScalarValueSizeInBits() > VT.getScalarSizeInBits() && assert(In.getScalarValueSizeInBits() > VT.getScalarSizeInBits() &&
"Unexpected types for truncate operation"); "Unexpected types for truncate operation");
APInt C; APInt C;
if (ISD::isConstantSplatVector(In.getOperand(1).getNode(), C)) { if (ISD::isConstantSplatVector(In.getOperand(1).getNode(), C)) {
// C should be equal to UINT32_MAX / UINT16_MAX / UINT8_MAX according // C should be equal to UINT32_MAX / UINT16_MAX / UINT8_MAX according
// the element size of the destination type. // the element size of the destination type.
return C.isMask(VT.getScalarSizeInBits()) ? In.getOperand(0) : return C.isMask(VT.getScalarSizeInBits()) ? In.getOperand(0) : SDValue();
SDValue();
} }
return SDValue(); return SDValue();
} }