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llvm/lib/Target/AMDGPU/SIISelLowering.cpp

Lines changed: 1 addition & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -16813,10 +16813,7 @@ static void knownBitsForSBFE(const MachineInstr &MI, GISelValueTracking &VT,
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VT.computeKnownBitsImpl(MI.getOperand(1).getReg(), Known, DemandedElts,
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Depth + 1);
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16816-
Known.Zero = Known.Zero.lshr(Offset);
16817-
Known.One = Known.One.lshr(Offset);
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16819-
Known = Known.trunc(Width);
16816+
Known = Known.extractBits(Width, Offset);
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if (SExt)
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Known = Known.sext(BFEWidth);

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