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1//===-- DSDIRInstructions.td - LDS/VDS Direct Instruction Definitions -----===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9//===----------------------------------------------------------------------===//10// LDSDIR/VDSDIR encoding (LDSDIR is gfx11, VDSDIR is gfx12+)11//===----------------------------------------------------------------------===//12 13class LDSDIRe<bits<2> op, bit is_direct> : Enc32 {14 // encoding fields15 bits<2> attrchan;16 bits<6> attr;17 bits<4> waitvdst;18 bits<8> vdst;19 20 // encoding21 let Inst{31-24} = 0xce; // encoding22 let Inst{23-22} = 0x0; // reserved23 let Inst{21-20} = op;24 let Inst{19-16} = waitvdst;25 let Inst{15-10} = !if(is_direct, ?, attr);26 let Inst{9-8} = !if(is_direct, ?, attrchan);27 let Inst{7-0} = vdst;28}29 30class VDSDIRe<bits<2> op, bit is_direct> : Enc32 {31 // encoding fields32 bits<2> attrchan;33 bits<6> attr;34 bits<4> waitvdst;35 bits<8> vdst;36 bits<1> waitvsrc;37 38 // encoding39 let Inst{31-24} = 0xce; // encoding40 let Inst{23} = waitvsrc;41 let Inst{22} = 0x0; // reserved42 let Inst{21-20} = op;43 let Inst{19-16} = waitvdst;44 let Inst{15-10} = !if(is_direct, ?, attr);45 let Inst{9-8} = !if(is_direct, ?, attrchan);46 let Inst{7-0} = vdst;47}48 49//===----------------------------------------------------------------------===//50// LDSDIR/VDSDIR Classes51//===----------------------------------------------------------------------===//52 53class LDSDIR_getIns<bit direct> {54 dag ret = !if(direct,55 (ins WaitVDST:$waitvdst),56 (ins InterpAttr:$attr, InterpAttrChan:$attrchan, WaitVDST:$waitvdst)57 );58}59 60class VDSDIR_getIns<bit direct> {61 dag ret = !if(direct,62 (ins WaitVAVDst:$waitvdst, WaitVMVSrc:$waitvsrc),63 (ins InterpAttr:$attr, InterpAttrChan:$attrchan, WaitVAVDst:$waitvdst,64 WaitVMVSrc:$waitvsrc)65 );66}67 68class DSDIR_Common<string opName, string asm = "", dag ins, bit direct> :69 InstSI<(outs VGPR_32:$vdst), ins, asm> {70 let LDSDIR = 1;71 let EXP_CNT = 1;72 73 let hasSideEffects = 0;74 let mayLoad = 1;75 let mayStore = 0;76 let maybeAtomic = 0;77 78 string Mnemonic = opName;79 let UseNamedOperandTable = 1;80 81 let Uses = [M0, EXEC];82 let DisableWQM = 0;83 let SchedRW = [WriteLDS];84 85 bit is_direct;86 let is_direct = direct;87}88 89class DSDIR_Pseudo<string opName, dag ins, bit direct> :90 DSDIR_Common<opName, "", ins, direct>,91 SIMCInstr<opName, SIEncodingFamily.NONE> {92 let isPseudo = 1;93 let isCodeGenOnly = 1;94}95 96class LDSDIR_getAsm<bit direct> {97 string ret = !if(direct,98 " $vdst$waitvdst",99 " $vdst, $attr$attrchan$waitvdst"100 );101}102 103class VDSDIR_getAsm<bit direct> {104 string ret = !if(direct,105 " $vdst$waitvdst$waitvsrc",106 " $vdst, $attr$attrchan$waitvdst$waitvsrc"107 );108}109 110class DSDIR_Real<DSDIR_Pseudo lds, dag ins, string asm, int subtarget> :111 DSDIR_Common<lds.Mnemonic,112 lds.Mnemonic # asm,113 ins,114 lds.is_direct>,115 SIMCInstr <lds.PseudoInstr, subtarget> {116 let isPseudo = 0;117 let isCodeGenOnly = 0;118 119 // copy SubtargetPredicate from pseudo.120 let SubtargetPredicate = lds.SubtargetPredicate;121}122 123//===----------------------------------------------------------------------===//124// LDS/VDS Direct Instructions125//===----------------------------------------------------------------------===//126 127let SubtargetPredicate = isGFX11Only in {128 129def LDS_DIRECT_LOAD : DSDIR_Pseudo<"lds_direct_load", LDSDIR_getIns<1>.ret, 1>;130def LDS_PARAM_LOAD : DSDIR_Pseudo<"lds_param_load", LDSDIR_getIns<0>.ret, 0>;131 132def : GCNPat <133 (f32 (int_amdgcn_lds_direct_load M0)),134 (LDS_DIRECT_LOAD 0)135>;136 137def : GCNPat <138 (f32 (int_amdgcn_lds_param_load timm:$attrchan, timm:$attr, M0)),139 (LDS_PARAM_LOAD timm:$attr, timm:$attrchan, 0)140>;141 142} // End SubtargetPredicate = isGFX11Only143 144let SubtargetPredicate = isGFX12PlusNot12_50 in {145 146def DS_DIRECT_LOAD : DSDIR_Pseudo<"ds_direct_load", VDSDIR_getIns<1>.ret, 1>;147def DS_PARAM_LOAD : DSDIR_Pseudo<"ds_param_load", VDSDIR_getIns<0>.ret, 0>;148 149def : GCNPat <150 (f32 (int_amdgcn_lds_direct_load M0)),151 (DS_DIRECT_LOAD 0, 1)152>;153 154def : GCNPat <155 (f32 (int_amdgcn_lds_param_load timm:$attrchan, timm:$attr, M0)),156 (DS_PARAM_LOAD timm:$attr, timm:$attrchan, 0, 1)157>;158 159} // End SubtargetPredicate = isGFX12PlusNot12_50.160 161//===----------------------------------------------------------------------===//162// GFX11163//===----------------------------------------------------------------------===//164 165multiclass DSDIR_Real_gfx11<bits<2> op> {166 defvar lds = !cast<DSDIR_Pseudo>(NAME);167 def _gfx11 : DSDIR_Real<lds, lds.InOperandList,168 LDSDIR_getAsm<lds.is_direct>.ret,169 SIEncodingFamily.GFX11>,170 LDSDIRe<op, lds.is_direct> {171 let AssemblerPredicate = isGFX11Only;172 let DecoderNamespace = "GFX11";173 }174}175 176defm LDS_PARAM_LOAD : DSDIR_Real_gfx11<0x0>;177defm LDS_DIRECT_LOAD : DSDIR_Real_gfx11<0x1>;178 179//===----------------------------------------------------------------------===//180// GFX12+181//===----------------------------------------------------------------------===//182 183multiclass DSDIR_Real_gfx12<bits<2> op> {184 defvar lds = !cast<DSDIR_Pseudo>(NAME);185 def _gfx12 : DSDIR_Real<lds, lds.InOperandList,186 VDSDIR_getAsm<lds.is_direct>.ret,187 SIEncodingFamily.GFX12>,188 VDSDIRe<op, lds.is_direct> {189 let AssemblerPredicate = isGFX12Plus;190 let DecoderNamespace = "GFX12";191 }192}193 194defm DS_PARAM_LOAD : DSDIR_Real_gfx12<0x0>;195defm DS_DIRECT_LOAD : DSDIR_Real_gfx12<0x1>;196 197let SubtargetPredicate = isGFX12Plus in {198 def : AMDGPUMnemonicAlias<"lds_param_load", "ds_param_load">;199 def : AMDGPUMnemonicAlias<"lds_direct_load", "ds_direct_load">;200}201