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| 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 | 6a43bf7d74677d1ea8956766fa745a28080b464d (patch) | |
| tree | b62f8e9c70a6b51dd9ed2c2abbba5b917f75d614 /llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | |
| parent | 288e1af8c8485edef4ff6d3d3c388a05df3b0ef7 (diff) | |
| download | bcm5719-llvm-6a43bf7d74677d1ea8956766fa745a28080b464d.tar.gz bcm5719-llvm-6a43bf7d74677d1ea8956766fa745a28080b464d.zip | |
Fix #13035, a bug around Thumb instruction LDRD/STRD with negative #0 offset index issue.
llvm-svn: 161162
Diffstat (limited to 'llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 6f36dcc1ef3..e47bf66e3af 100644 --- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/llvm/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; } |
