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authorJohnny Chen <johnny.chen@apple.com>2011-03-25 19:35:37 +0000
committerJohnny Chen <johnny.chen@apple.com>2011-03-25 19:35:37 +0000
commitaaf2c69400eaf3842c63f94995890eae731f1863 (patch)
tree0cd453d8f41519970036b97de9cec576702851a4 /llvm/lib/Target
parent1d84f3757781559b3990c3b0acb8982034d0a615 (diff)
downloadbcm5719-llvm-aaf2c69400eaf3842c63f94995890eae731f1863.tar.gz
bcm5719-llvm-aaf2c69400eaf3842c63f94995890eae731f1863.zip
DisassembleThumb2LdSt() did not handle t2LDRs correctly with respect to RegClass. Add two test cases.
rdar://problem/9182892 llvm-svn: 128299
Diffstat (limited to 'llvm/lib/Target')
-rw-r--r--llvm/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h b/llvm/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
index 797968840b4..a238306dd15 100644
--- a/llvm/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
+++ b/llvm/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
@@ -1868,7 +1868,7 @@ static bool DisassembleThumb2LdSt(bool Load, MCInst &MI, unsigned Opcode,
OpInfo[1].RegClass == ARM::GPRRegClassID &&
"Expect >= 3 operands and first two as reg operands");
- bool ThreeReg = (OpInfo[2].RegClass == ARM::GPRRegClassID);
+ bool ThreeReg = (OpInfo[2].RegClass > 0);
bool TIED_TO = ThreeReg && TID.getOperandConstraint(2, TOI::TIED_TO) != -1;
bool Imm12 = !ThreeReg && slice(insn, 23, 23) == 1; // ARMInstrThumb2.td
@@ -1912,7 +1912,8 @@ static bool DisassembleThumb2LdSt(bool Load, MCInst &MI, unsigned Opcode,
++OpIdx;
if (ThreeReg) {
- MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B, ARM::GPRRegClassID,
+ // This could be an offset register or a TIED_TO register.
+ MI.addOperand(MCOperand::CreateReg(getRegisterEnum(B,OpInfo[OpIdx].RegClass,
R2)));
++OpIdx;
}
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