diff options
| -rw-r--r-- | llvm/include/llvm/ADT/APInt.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/include/llvm/ADT/APInt.h b/llvm/include/llvm/ADT/APInt.h index 1289335fd2a..e5f0c35534a 100644 --- a/llvm/include/llvm/ADT/APInt.h +++ b/llvm/include/llvm/ADT/APInt.h @@ -414,7 +414,9 @@ public: /// This checks to see if the value of this APInt is the maximum signed /// value for the APInt's bit width. bool isMaxSignedValue() const { - return !isNegative() && countTrailingOnes() == BitWidth - 1; + if (isSingleWord()) + return U.VAL == ((WordType(1) << (BitWidth - 1)) - 1); + return !isNegative() && countTrailingOnesSlowCase() == BitWidth - 1; } /// \brief Determine if this is the smallest unsigned value. @@ -428,7 +430,9 @@ public: /// This checks to see if the value of this APInt is the minimum signed /// value for the APInt's bit width. bool isMinSignedValue() const { - return isNegative() && countTrailingZeros() == BitWidth - 1; + if (isSingleWord()) + return U.VAL == (WordType(1) << (BitWidth - 1)); + return isNegative() && countTrailingZerosSlowCase() == BitWidth - 1; } /// \brief Check if this APInt has an N-bits unsigned integer value. |
