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Diffstat (limited to 'lib/ExecutionEngine/Interpreter/Interpreter.h')
-rw-r--r--lib/ExecutionEngine/Interpreter/Interpreter.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ExecutionEngine/Interpreter/Interpreter.h b/lib/ExecutionEngine/Interpreter/Interpreter.h
index a8deb01b21..aef4cb23b1 100644
--- a/lib/ExecutionEngine/Interpreter/Interpreter.h
+++ b/lib/ExecutionEngine/Interpreter/Interpreter.h
@@ -236,7 +236,7 @@ private: // Helper functions
};
inline void maskToBitWidth(GenericValue& GV, unsigned BitWidth) {
- uint64_t BitMask = (1ull << BitWidth) - 1;
+ uint64_t BitMask = ~(uint64_t)(0ull) >> (64-BitWidth);
if (BitWidth <= 8)
GV.Int8Val &= BitMask;
else if (BitWidth <= 16)