[llvm] r331947 - [InstCombine] Use APInt::getBitsSetFrom to shortern a line and fix an 80 columns violation. NFC

[Craig Topper via llvm-commits]

Author: ctopper
Date: Wed May  9 17:53:22 2018
New Revision: 331947

URL: http://llvm.org/viewvc/llvm-project?rev=331947&view=rev
Log:
[InstCombine] Use APInt::getBitsSetFrom to shortern a line and fix an 80 columns violation. NFC

Fix a similar line in the same function.

Modified:
    llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp

Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp?rev=331947&r1=331946&r2=331947&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp Wed May  9 17:53:22 2018
@@ -365,7 +365,7 @@ static bool canEvaluateTruncated(Value *
     uint32_t OrigBitWidth = OrigTy->getScalarSizeInBits();
     uint32_t BitWidth = Ty->getScalarSizeInBits();
     if (BitWidth < OrigBitWidth) {
-      APInt Mask = APInt::getHighBitsSet(OrigBitWidth, OrigBitWidth-BitWidth);
+      APInt Mask = APInt::getBitsSetFrom(OrigBitWidth, BitWidth);
       if (IC.MaskedValueIsZero(I->getOperand(0), Mask, 0, CxtI) &&
           IC.MaskedValueIsZero(I->getOperand(1), Mask, 0, CxtI)) {
         return canEvaluateTruncated(I->getOperand(0), Ty, IC, CxtI) &&
@@ -394,7 +394,7 @@ static bool canEvaluateTruncated(Value *
       uint32_t OrigBitWidth = OrigTy->getScalarSizeInBits();
       uint32_t BitWidth = Ty->getScalarSizeInBits();
       if (IC.MaskedValueIsZero(I->getOperand(0),
-            APInt::getHighBitsSet(OrigBitWidth, OrigBitWidth-BitWidth), 0, CxtI) &&
+            APInt::getBitsSetFrom(OrigBitWidth, BitWidth), 0, CxtI) &&
           Amt->getLimitedValue(BitWidth) < BitWidth) {
         return canEvaluateTruncated(I->getOperand(0), Ty, IC, CxtI);
       }