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| author | Jim Grosbach <grosbach@apple.com> | 2011-09-19 22:21:13 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-09-19 22:21:13 +0000 |
| commit | 7f739bee261debdf56bd89ac922b57eca53e91dc (patch) | |
| tree | fe5281737d5a141000592658edc67fe7e5512ac3 /lib/Target/ARM/Disassembler/ARMDisassembler.cpp | |
| parent | 463158fdb89001d398520cfc1cbb5f1384623dd8 (diff) | |
Thumb2 assembly parsing and encoding for TBB/TBH.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140078 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index 6cbe863d0e..dea38bf00a 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -287,6 +287,8 @@ static DecodeStatus DecodeThumbBLXOffset(llvm::MCInst &Inst, unsigned Insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2AddrModeImm12(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeThumbTableBranch(llvm::MCInst &Inst, unsigned Val, + uint64_t Address, const void *Decoder); static DecodeStatus DecodeThumb2BCCInstruction(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); static DecodeStatus DecodeT2SOImm(llvm::MCInst &Inst, unsigned Val, @@ -2899,6 +2901,22 @@ static DecodeStatus DecodeCoprocessor(llvm::MCInst &Inst, unsigned Val, } static DecodeStatus +DecodeThumbTableBranch(llvm::MCInst &Inst, unsigned Insn, + uint64_t Address, const void *Decoder) { + DecodeStatus S = MCDisassembler::Success; + + unsigned Rn = fieldFromInstruction32(Insn, 16, 4); + unsigned Rm = fieldFromInstruction32(Insn, 0, 4); + + if (Rn == ARM::SP) S = MCDisassembler::SoftFail; + if (!Check(S, DecodeGPRRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + if (!Check(S, DecoderGPRRegisterClass(Inst, Rm, Address, Decoder))) + return MCDisassembler::Fail; + return S; +} + +static DecodeStatus DecodeThumb2BCCInstruction(llvm::MCInst &Inst, unsigned Insn, uint64_t Address, const void *Decoder) { DecodeStatus S = MCDisassembler::Success; |