117 lines
3.3 KiB
TableGen
117 lines
3.3 KiB
TableGen
//===-- LDSDIRInstructions.td - LDS Direct Instruction Definitions --------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// LDSDIR encoding
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//===----------------------------------------------------------------------===//
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class LDSDIRe<bits<2> op, bit is_direct> : Enc32 {
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// encoding fields
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bits<2> attrchan;
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bits<6> attr;
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bits<4> waitvdst;
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bits<8> vdst;
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// encoding
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let Inst{31-24} = 0xce; // encoding
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let Inst{23-22} = 0x0; // reserved
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let Inst{21-20} = op;
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let Inst{19-16} = waitvdst;
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let Inst{15-10} = !if(is_direct, ?, attr);
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let Inst{9-8} = !if(is_direct, ?, attrchan);
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let Inst{7-0} = vdst;
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}
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//===----------------------------------------------------------------------===//
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// LDSDIR Classes
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//===----------------------------------------------------------------------===//
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class LDSDIR_getIns<bit direct> {
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dag ret = !if(direct,
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(ins wait_vdst:$waitvdst),
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(ins Attr:$attr, AttrChan:$attrchan, wait_vdst:$waitvdst)
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);
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}
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class LDSDIR_Common<string opName, string asm = "", bit direct> : InstSI<
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(outs VGPR_32:$vdst),
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LDSDIR_getIns<direct>.ret,
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asm> {
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let LDSDIR = 1;
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let EXP_CNT = 1;
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let hasSideEffects = 0;
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let mayLoad = 1;
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let mayStore = 0;
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string Mnemonic = opName;
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let UseNamedOperandTable = 1;
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let Uses = [M0, EXEC];
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let DisableWQM = 0;
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let SchedRW = [WriteLDS];
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bit is_direct;
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let is_direct = direct;
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}
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class LDSDIR_Pseudo<string opName, bit direct> :
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LDSDIR_Common<opName, "", direct>,
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SIMCInstr<opName, SIEncodingFamily.NONE> {
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let isPseudo = 1;
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let isCodeGenOnly = 1;
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}
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class LDSDIR_getAsm<bit direct> {
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string ret = !if(direct,
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" $vdst$waitvdst",
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" $vdst, $attr$attrchan$waitvdst"
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);
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}
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class LDSDIR_Real<bits<2> op, LDSDIR_Pseudo lds, int subtarget> :
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LDSDIR_Common<lds.Mnemonic,
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lds.Mnemonic # LDSDIR_getAsm<lds.is_direct>.ret,
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lds.is_direct>,
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SIMCInstr <lds.Mnemonic, subtarget>,
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LDSDIRe<op, lds.is_direct> {
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let isPseudo = 0;
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let isCodeGenOnly = 0;
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}
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//===----------------------------------------------------------------------===//
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// LDS Direct Instructions
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//===----------------------------------------------------------------------===//
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def LDS_DIRECT_LOAD : LDSDIR_Pseudo<"lds_direct_load", 1>;
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def LDS_PARAM_LOAD : LDSDIR_Pseudo<"lds_param_load", 0>;
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def : GCNPat <
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(f32 (int_amdgcn_lds_direct_load M0)),
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(LDS_DIRECT_LOAD 0)
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>;
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def : GCNPat <
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(f32 (int_amdgcn_lds_param_load timm:$attrchan, timm:$attr, M0)),
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(LDS_PARAM_LOAD timm:$attr, timm:$attrchan, 0)
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>;
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//===----------------------------------------------------------------------===//
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// GFX11+
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//===----------------------------------------------------------------------===//
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multiclass LDSDIR_Real_gfx11<bits<2> op, LDSDIR_Pseudo lds = !cast<LDSDIR_Pseudo>(NAME)> {
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def _gfx11 : LDSDIR_Real<op, lds, SIEncodingFamily.GFX11> {
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let AssemblerPredicate = isGFX11Plus;
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let DecoderNamespace = "GFX11";
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}
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}
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defm LDS_PARAM_LOAD : LDSDIR_Real_gfx11<0x0>;
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defm LDS_DIRECT_LOAD : LDSDIR_Real_gfx11<0x1>;
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