diff options
| author | Jiangning Liu <jiangning.liu@arm.com> | 2012-08-02 08:29:50 +0000 |
|---|---|---|
| committer | Jiangning Liu <jiangning.liu@arm.com> | 2012-08-02 08:29:50 +0000 |
| commit | fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa (patch) | |
| tree | 5d0ce3d875c3c64330d094500418b1470087d2ad /lib/Target/ARM/Disassembler/ARMDisassembler.cpp | |
| parent | c1b7ca5ba28ded2d83ae534c8e072c2538d43295 (diff) | |
Fix #13035, a bug around Thumb instruction LDRD/STRD with negative #0 offset index issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161162 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 6f36dcc1ef..e47bf66e3a 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -3151,9 +3151,14 @@ static DecodeStatus DecodeT2LoadShift(MCInst &Inst, unsigned Insn, static DecodeStatus DecodeT2Imm8S4(MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { - int imm = Val & 0xFF; - if (!(Val & 0x100)) imm *= -1; - Inst.addOperand(MCOperand::CreateImm(imm << 2)); + if (Val == 0) + Inst.addOperand(MCOperand::CreateImm(INT32_MIN)); + else { + int imm = Val & 0xFF; + + if (!(Val & 0x100)) imm *= -1; + Inst.addOperand(MCOperand::CreateImm(imm << 2)); + } return MCDisassembler::Success; } |