From 9e6a5a37460ff82ad4e3a7aea1c45e2c934ab25b Mon Sep 17 00:00:00 2001 From: Richard Osborne Date: Wed, 23 Jan 2013 20:08:11 +0000 Subject: [PATCH] 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 --- .../XCore/Disassembler/XCoreDisassembler.cpp | 25 +++++++++++++++++++ lib/Target/XCore/XCoreInstrFormats.td | 6 ++++- lib/Target/XCore/XCoreInstrInfo.td | 9 +++---- test/MC/Disassembler/XCore/xcore.txt | 5 ++++ 4 files changed, 39 insertions(+), 6 deletions(-) diff --git a/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp b/lib/Target/XCore/Disassembler/XCoreDisassembler.cpp index e6861bf0f3a..73aeb9c755e 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 29bc65853df..fa360a77751 100644 --- a/lib/Target/XCore/XCoreInstrFormats.td +++ b/lib/Target/XCore/XCoreInstrFormats.td @@ -226,6 +226,10 @@ class _L5R pattern> : InstXCore<4, outs, ins, asmstr, pattern> { } -class _L6R pattern> +class _FL6R opc, dag outs, dag ins, string asmstr, list 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 d193b459f50..65dbaef979c 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 diff --git a/test/MC/Disassembler/XCore/xcore.txt b/test/MC/Disassembler/XCore/xcore.txt index 43c3c8d99ed..d9d7e097bdd 100644 --- a/test/MC/Disassembler/XCore/xcore.txt +++ b/test/MC/Disassembler/XCore/xcore.txt @@ -456,3 +456,8 @@ # CHECK: bl 38631 0x25 0xf0 0xe7 0xd2 + +# l6r instructions + +# CHECK: lmul r11, r0, r2, r5, r8, r10 +0xf9 0xfa 0x02 0x06 -- 2.34.1