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Fix #13138, a bug around ARM instruction DSB encoding and decoding issue.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161161 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jiangning Liu
2012-08-02 08:21:27 +00:00
parent 1fb27eccf5
commit c1b7ca5ba2
7 changed files with 310 additions and 73 deletions
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13
lib/Target/ARM/Disassembler/ARMDisassembler.cpp
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@ -3494,19 +3494,8 @@ static DecodeStatus DecodeThumbBLTargetOperand(MCInst &Inst, unsigned Val,
static DecodeStatus DecodeMemBarrierOption(MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder) {
switch (Val) {
default:
if (Val & ~0xf)
return MCDisassembler::Fail;
case 0xF: // SY
case 0xE: // ST
case 0xB: // ISH
case 0xA: // ISHST
case 0x7: // NSH
case 0x6: // NSHST
case 0x3: // OSH
case 0x2: // OSHST
break;
}
Inst.addOperand(MCOperand::CreateImm(Val));
return MCDisassembler::Success;