diff options
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index d1eb5b3004..4e9c3e58a5 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -1004,10 +1004,9 @@ static DecodeStatus DecodeBitfieldMaskOperand(llvm::MCInst &Inst, unsigned Val, unsigned msb = fieldFromInstruction32(Val, 5, 5); unsigned lsb = fieldFromInstruction32(Val, 0, 5); - uint32_t msb_mask = (1 << (msb+1)) - 1; - if (msb == 31) msb_mask = 0xFFFFFFFF; - uint32_t lsb_mask = (1 << lsb) - 1; - if (lsb == 31) lsb_mask = 0xFFFFFFFF; + uint32_t msb_mask = 0xFFFFFFFF; + if (msb != 31) msb_mask = (1U << (msb+1)) - 1; + uint32_t lsb_mask = (1U << lsb) - 1; Inst.addOperand(MCOperand::CreateImm(~(msb_mask ^ lsb_mask))); return MCDisassembler::Success; |