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| author | Owen Anderson <resistor@mac.com> | 2011-08-09 21:07:45 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2011-08-09 21:07:45 +0000 |
| commit | 7a2401dbf0a860aacd143c57c704d01abbcb2705 (patch) | |
| tree | 6e1005b1381d6084fcf41dccefae74fb424e130b /llvm/lib/Target/ARM/Disassembler | |
| parent | 84cd7927b99223de44ef2992aa32a2d08b4c735c (diff) | |
| download | bcm5719-llvm-7a2401dbf0a860aacd143c57c704d01abbcb2705.tar.gz bcm5719-llvm-7a2401dbf0a860aacd143c57c704d01abbcb2705.zip | |
Tighten Thumb1 branch predicate decoding.
llvm-svn: 137146
Diffstat (limited to 'llvm/lib/Target/ARM/Disassembler')
| -rw-r--r-- | llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 8ae8ce83424..42cd7ba9a6f 100644 --- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -592,6 +592,9 @@ static bool DecodeQPRRegisterClass(llvm::MCInst &Inst, unsigned RegNo, static bool DecodePredicateOperand(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { if (Val == 0xF) return false; + // AL predicate is not allowed on Thumb1 branches. + if (Inst.getOpcode() == ARM::tBcc && Val == 0xE) + return false; Inst.addOperand(MCOperand::CreateImm(Val)); if (Val == ARMCC::AL) { Inst.addOperand(MCOperand::CreateReg(0)); |
