Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.665 -> 1.666 --- Log message: Implement isMinValuePlusOne using facilities of APInt instead of uint64_t Patch by Zhou Sheng. --- Diffs of the changes: (+4 -5) InstructionCombining.cpp | 9 ++++----- 1 files changed, 4 insertions(+), 5 deletions(-) Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.665 llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.666 --- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.665 Mon Mar 19 16:04:43 2007 +++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Mon Mar 19 16:08:07 2007 @@ -3463,12 +3463,11 @@ static bool isMinValuePlusOne(const ConstantInt *C, bool isSigned) { if (isSigned) { // Calculate 1111111111000000000000 - unsigned TypeBits = C->getType()->getPrimitiveSizeInBits(); - int64_t Val = -1; // All ones - Val <<= TypeBits-1; // Shift over to the right spot - return C->getSExtValue() == Val+1; + uint32_t TypeBits = C->getType()->getPrimitiveSizeInBits(); + APInt Val(APInt::getSignedMinValue(TypeBits)); + return C->getValue() == Val+1; } - return C->getZExtValue() == 1; // unsigned + return C->getValue() == 1; // unsigned } // isOneBitSet - Return true if there is exactly one bit set in the specified _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits