diff options
| author | Richard Osborne <richard@xmos.com> | 2013-01-23 20:08:11 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2013-01-23 20:08:11 +0000 |
| commit | 9e6a5a37460ff82ad4e3a7aea1c45e2c934ab25b (patch) | |
| tree | 5f3a9a240ddfcaccfa821857f2872af82ffa0f3b /lib/Target/XCore | |
| parent | b09350d9a5639f55c46659b30be12a0c938378ab (diff) | |
Add instruction encodings / disassembly support for l6r instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173288 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/XCore')
| -rw-r--r-- | lib/Target/XCore/Disassembler/XCoreDisassembler.cpp | 25 | ||||
| -rw-r--r-- | lib/Target/XCore/XCoreInstrFormats.td | 6 | ||||
| -rw-r--r-- | lib/Target/XCore/XCoreInstrInfo.td | 9 |
3 files changed, 34 insertions, 6 deletions
diff --git a/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp b/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp index e6861bf0f3..73aeb9c755 100644 --- a/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp +++ b/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp @@ -170,6 +170,11 @@ static DecodeStatus DecodeL2RUSBitpInstruction(MCInst &Inst, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeL6RInstruction(MCInst &Inst, + unsigned Insn, + uint64_t Address, + const void *Decoder); + #include "XCoreGenDisassemblerTables.inc" static DecodeStatus DecodeGRRegsRegisterClass(MCInst &Inst, @@ -572,6 +577,26 @@ DecodeL2RUSBitpInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, return S; } +static DecodeStatus +DecodeL6RInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, + const void *Decoder) { + unsigned Op1, Op2, Op3, Op4, Op5, Op6; + DecodeStatus S = + Decode3OpInstruction(fieldFromInstruction(Insn, 0, 16), Op1, Op2, Op3); + if (S != MCDisassembler::Success) + return S; + S = Decode3OpInstruction(fieldFromInstruction(Insn, 16, 16), Op4, Op5, Op6); + if (S != MCDisassembler::Success) + return S; + DecodeGRRegsRegisterClass(Inst, Op1, Address, Decoder); + DecodeGRRegsRegisterClass(Inst, Op4, Address, Decoder); + DecodeGRRegsRegisterClass(Inst, Op2, Address, Decoder); + DecodeGRRegsRegisterClass(Inst, Op3, Address, Decoder); + DecodeGRRegsRegisterClass(Inst, Op5, Address, Decoder); + DecodeGRRegsRegisterClass(Inst, Op6, Address, Decoder); + return S; +} + MCDisassembler::DecodeStatus XCoreDisassembler::getInstruction(MCInst &instr, uint64_t &Size, diff --git a/lib/Target/XCore/XCoreInstrFormats.td b/lib/Target/XCore/XCoreInstrFormats.td index 29bc65853d..fa360a7775 100644 --- a/lib/Target/XCore/XCoreInstrFormats.td +++ b/lib/Target/XCore/XCoreInstrFormats.td @@ -226,6 +226,10 @@ class _L5R<dag outs, dag ins, string asmstr, list<dag> pattern> : InstXCore<4, outs, ins, asmstr, pattern> { } -class _L6R<dag outs, dag ins, string asmstr, list<dag> pattern> +class _FL6R<bits<5> opc, dag outs, dag ins, string asmstr, list<dag> pattern> : InstXCore<4, outs, ins, asmstr, pattern> { + let Inst{31-27} = opc; + let Inst{15-11} = 0b11111; + + let DecoderMethod = "DecodeL6RInstruction"; } diff --git a/lib/Target/XCore/XCoreInstrInfo.td b/lib/Target/XCore/XCoreInstrInfo.td index d193b459f5..65dbaef979 100644 --- a/lib/Target/XCore/XCoreInstrInfo.td +++ b/lib/Target/XCore/XCoreInstrInfo.td @@ -502,11 +502,10 @@ def LDIV_l5r : _L5R<(outs GRRegs:$dst1, GRRegs:$dst2), // Six operand long -def LMUL_l6r : _L6R<(outs GRRegs:$dst1, GRRegs:$dst2), - (ins GRRegs:$src1, GRRegs:$src2, GRRegs:$src3, - GRRegs:$src4), - "lmul $dst1, $dst2, $src1, $src2, $src3, $src4", - []>; +def LMUL_l6r : _FL6R< + 0b00000, (outs GRRegs:$dst1, GRRegs:$dst2), + (ins GRRegs:$src1, GRRegs:$src2, GRRegs:$src3, GRRegs:$src4), + "lmul $dst1, $dst2, $src1, $src2, $src3, $src4", []>; // Register - U6 |