diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp index 0eb3d6593fe..26c9c9b9f67 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp +++ b/llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp @@ -96,7 +96,9 @@ struct SystemZAddressingMode { // Return a mask with Count low bits set. static uint64_t allOnes(unsigned int Count) { - return Count == 0 ? 0 : (uint64_t(1) << (Count - 1) << 1) - 1; + if (Count > 63) + return UINT64_MAX; + return (uint64_t(1) << Count) - 1; } // Represents operands 2 to 5 of the ROTATE AND ... SELECTED BITS operation |
