diff options
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 8a85cfade1..85e48c7165 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -978,6 +978,8 @@ static bool DecodeAddrMode2IdxInstruction(llvm::MCInst &Inst, unsigned Insn, else if (!P && writeback) idx_mode = ARMII::IndexModePost; + if (writeback && (Rn == 15 || Rn == Rt)) return false; // UNPREDICTABLE + if (reg) { if (!DecodeGPRnopcRegisterClass(Inst, Rm, Address, Decoder)) return false; ARM_AM::ShiftOpc Opc = ARM_AM::lsl; |