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-rw-r--r--lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h b/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
index f9d2bd0d38..c2dd6a1e9e 100644
--- a/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
+++ b/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
@@ -1230,9 +1230,6 @@ static bool DisassembleThumb2LdStEx(MCInst &MI, unsigned Opcode, uint32_t insn,
return true;
}
-// LLVM, as of Jan-05-2010, does not output <Rt2>, i.e., Rs, in the asm.
-// Whereas the ARM Arch. Manual does not require that t2 = t+1 like in ARM ISA.
-//
// t2LDRDi8: Rd Rs Rn imm8s4 (offset mode)
// t2LDRDpci: Rd Rs imm8s4 (Not decoded, prefer the generic t2LDRDi8 version)
// t2STRDi8: Rd Rs Rn imm8s4 (offset mode)
@@ -1246,18 +1243,21 @@ static bool DisassembleThumb2LdStDual(MCInst &MI, unsigned Opcode,
if (!OpInfo) return false;
assert(NumOps >= 4
- && OpInfo[0].RegClass == ARM::GPRRegClassID
- && OpInfo[1].RegClass == ARM::GPRRegClassID
- && OpInfo[2].RegClass == ARM::GPRRegClassID
+ && OpInfo[0].RegClass > 0
+ && OpInfo[0].RegClass == OpInfo[1].RegClass
+ && OpInfo[2].RegClass > 0
&& OpInfo[3].RegClass < 0
&& "Expect >= 4 operands and first 3 as reg operands");
// Add the <Rt> <Rt2> operands.
- MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
+ unsigned RegClassPair = OpInfo[0].RegClass;
+ unsigned RegClassBase = OpInfo[2].RegClass;
+
+ MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, RegClassPair,
decodeRd(insn))));
- MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
+ MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, RegClassPair,
decodeRs(insn))));
- MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
+ MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, RegClassBase,
decodeRn(insn))));
// Finally add (+/-)imm8*4, depending on the U bit.