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ASR #32 is not allowed on Thumb2 USAT and SSAT instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140560 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2011-09-26 21:06:22 +00:00
parent ad2d46d0a5
commit 0afa0094af
4 changed files with 38 additions and 3 deletions
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14
lib/Target/ARM/Disassembler/ARMDisassembler.cpp
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@@ -307,6 +307,9 @@ static DecodeStatus DecodeT2Adr(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder);
static DecodeStatus DecodeT2LdStPre(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder);
static DecodeStatus DecodeT2ShifterImmOperand(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder);
#include "ARMGenDisassemblerTables.inc"
@@ -3876,3 +3879,14 @@ static DecodeStatus DecodeT2Adr(llvm::MCInst &Inst, uint32_t Insn,
return MCDisassembler::Success;
}
static DecodeStatus DecodeT2ShifterImmOperand(llvm::MCInst &Inst, uint32_t Val,
uint64_t Address,
const void *Decoder) {
DecodeStatus S = MCDisassembler::Success;
// Shift of "asr #32" is not allowed in Thumb2 mode.
if (Val == 0x20) S = MCDisassembler::SoftFail;
Inst.addOperand(MCOperand::CreateImm(Val));
return S;
}