diff options
| -rw-r--r-- | include/llvm/ADT/APInt.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h index 8f3b2f6a6d..7e5132f0d0 100644 --- a/include/llvm/ADT/APInt.h +++ b/include/llvm/ADT/APInt.h @@ -355,7 +355,9 @@ public: /// @brief Get a value with high bits set static APInt getHighBitsSet(uint32_t numBits, uint32_t hiBitsSet) { assert(hiBitsSet <= numBits && "Too many bits to set!"); - assert(hiBitsSet > 0 && "You must set SOME bits"); + // Handle a degenerate case, to avoid shifting by word size + if (hiBitsSet == 0) + return APInt(numBits, 0); uint32_t shiftAmt = numBits - hiBitsSet; // For small values, return quickly if (numBits <= APINT_BITS_PER_WORD) @@ -369,7 +371,9 @@ public: /// @brief Get a value with low bits set static APInt getLowBitsSet(uint32_t numBits, uint32_t loBitsSet) { assert(loBitsSet <= numBits && "Too many bits to set!"); - assert(loBitsSet > 0 && "You must set SOME bits"); + // Handle a degenerate case, to avoid shifting by word size + if (loBitsSet == 0) + return APInt(numBits, 0); uint32_t shiftAmt = numBits - loBitsSet; // For small values, return quickly if (numBits <= APINT_BITS_PER_WORD) |