Author: Nathan Gauër Date: 2025-11-06T15:36:17+01:00 New Revision: b8a814e4fce292a24449702de07d0705f5045c0b
URL: https://github.com/llvm/llvm-project/commit/b8a814e4fce292a24449702de07d0705f5045c0b DIFF: https://github.com/llvm/llvm-project/commit/b8a814e4fce292a24449702de07d0705f5045c0b.diff LOG: [HLSL] Add support for user semantics (#153424) This commit adds support for HLSL input semantics. User semantics are all semantics not starting with `SV_`. Those semantics ends up with a Location assignment in SPIR-V. Note: user semantics means Location, but the opposite is not true. Depending on the stage, some system semantics can rely on a Location index. This is not implemented in this PR. Added: clang/test/CodeGenHLSL/semantics/semantic.arbitrary.hlsl clang/test/CodeGenHLSL/semantics/semantic.array.hlsl clang/test/CodeGenHLSL/semantics/semantic.struct.hlsl clang/test/SemaHLSL/Semantics/semantics-invalid.hlsl clang/test/SemaHLSL/Semantics/semantics-valid.hlsl Modified: clang/include/clang/Basic/Attr.td clang/include/clang/Basic/DiagnosticSemaKinds.td clang/include/clang/Sema/SemaHLSL.h clang/lib/CodeGen/CGHLSLRuntime.cpp clang/lib/CodeGen/CGHLSLRuntime.h clang/lib/Sema/SemaHLSL.cpp clang/test/CodeGenHLSL/semantics/DispatchThreadID.hlsl clang/test/ParserHLSL/semantic_parsing.hlsl llvm/include/llvm/IR/IntrinsicsDirectX.td Removed: ################################################################################ diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td index 749f531ec9ab1..1013bfc575747 100644 --- a/clang/include/clang/Basic/Attr.td +++ b/clang/include/clang/Basic/Attr.td @@ -5017,6 +5017,10 @@ def HLSLUnparsedSemantic : HLSLAnnotationAttr { let Documentation = [InternalOnly]; } +def HLSLUserSemantic : HLSLSemanticAttr</* Indexable= */ 1> { + let Documentation = [InternalOnly]; +} + def HLSLSV_Position : HLSLSemanticAttr</* Indexable= */ 1> { let Documentation = [HLSLSV_PositionDocs]; } diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td index fa509536bf021..f43707e513351 100644 --- a/clang/include/clang/Basic/DiagnosticSemaKinds.td +++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td @@ -13184,6 +13184,7 @@ def err_hlsl_semantic_indexing_not_supported : Error<"semantic %0 does not allow indexing">; def err_hlsl_init_priority_unsupported : Error< "initializer priorities are not supported in HLSL">; +def err_hlsl_semantic_index_overlap : Error<"semantic index overlap %0">; def warn_hlsl_user_defined_type_missing_member: Warning<"binding type '%select{t|u|b|s|c}0' only applies to types containing %select{SRV resources|UAV resources|constant buffer resources|sampler state|numeric types}0">, InGroup<LegacyConstantRegisterBinding>; def err_hlsl_binding_type_mismatch: Error<"binding type '%select{t|u|b|s|c}0' only applies to %select{SRV resources|UAV resources|constant buffer resources|sampler state|numeric variables in the global scope}0">; diff --git a/clang/include/clang/Sema/SemaHLSL.h b/clang/include/clang/Sema/SemaHLSL.h index 8c3b6ae176389..28b03ac4c4676 100644 --- a/clang/include/clang/Sema/SemaHLSL.h +++ b/clang/include/clang/Sema/SemaHLSL.h @@ -20,7 +20,9 @@ #include "clang/Basic/DiagnosticSema.h" #include "clang/Basic/SourceLocation.h" #include "clang/Sema/SemaBase.h" +#include "llvm/ADT/DenseMap.h" #include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/StringSet.h" #include "llvm/TargetParser/Triple.h" #include <initializer_list> @@ -259,9 +261,11 @@ class SemaHLSL : public SemaBase { HLSLSemanticAttr *createSemantic(const SemanticInfo &Semantic, DeclaratorDecl *TargetDecl); bool determineActiveSemanticOnScalar(FunctionDecl *FD, DeclaratorDecl *D, - SemanticInfo &ActiveSemantic); + SemanticInfo &ActiveSemantic, + llvm::StringSet<> &ActiveInputSemantics); bool determineActiveSemantic(FunctionDecl *FD, DeclaratorDecl *D, - SemanticInfo &ActiveSemantic); + SemanticInfo &ActiveSemantic, + llvm::StringSet<> &ActiveInputSemantics); void processExplicitBindingsOnDecl(VarDecl *D); diff --git a/clang/lib/CodeGen/CGHLSLRuntime.cpp b/clang/lib/CodeGen/CGHLSLRuntime.cpp index 945f9e2451bc1..e392a12044a39 100644 --- a/clang/lib/CodeGen/CGHLSLRuntime.cpp +++ b/clang/lib/CodeGen/CGHLSLRuntime.cpp @@ -549,6 +549,16 @@ static void addSPIRVBuiltinDecoration(llvm::GlobalVariable *GV, GV->addMetadata("spirv.Decorations", *Decoration); } +static void addLocationDecoration(llvm::GlobalVariable *GV, unsigned Location) { + LLVMContext &Ctx = GV->getContext(); + IRBuilder<> B(GV->getContext()); + MDNode *Operands = + MDNode::get(Ctx, {ConstantAsMetadata::get(B.getInt32(/* Location */ 30)), + ConstantAsMetadata::get(B.getInt32(Location))}); + MDNode *Decoration = MDNode::get(Ctx, {Operands}); + GV->addMetadata("spirv.Decorations", *Decoration); +} + static llvm::Value *createSPIRVBuiltinLoad(IRBuilder<> &B, llvm::Module &M, llvm::Type *Ty, const Twine &Name, unsigned BuiltInID) { @@ -562,6 +572,69 @@ static llvm::Value *createSPIRVBuiltinLoad(IRBuilder<> &B, llvm::Module &M, return B.CreateLoad(Ty, GV); } +static llvm::Value *createSPIRVLocationLoad(IRBuilder<> &B, llvm::Module &M, + llvm::Type *Ty, unsigned Location, + StringRef Name) { + auto *GV = new llvm::GlobalVariable( + M, Ty, /* isConstant= */ true, llvm::GlobalValue::ExternalLinkage, + /* Initializer= */ nullptr, /* Name= */ Name, /* insertBefore= */ nullptr, + llvm::GlobalVariable::GeneralDynamicTLSModel, + /* AddressSpace */ 7, /* isExternallyInitialized= */ true); + GV->setVisibility(llvm::GlobalValue::HiddenVisibility); + addLocationDecoration(GV, Location); + return B.CreateLoad(Ty, GV); +} + +llvm::Value * +CGHLSLRuntime::emitSPIRVUserSemanticLoad(llvm::IRBuilder<> &B, llvm::Type *Type, + HLSLSemanticAttr *Semantic, + std::optional<unsigned> Index) { + Twine BaseName = Twine(Semantic->getAttrName()->getName()); + Twine VariableName = BaseName.concat(Twine(Index.value_or(0))); + + unsigned Location = SPIRVLastAssignedInputSemanticLocation; + + // DXC completely ignores the semantic/index pair. Location are assigned from + // the first semantic to the last. + llvm::ArrayType *AT = dyn_cast<llvm::ArrayType>(Type); + unsigned ElementCount = AT ? AT->getNumElements() : 1; + SPIRVLastAssignedInputSemanticLocation += ElementCount; + return createSPIRVLocationLoad(B, CGM.getModule(), Type, Location, + VariableName.str()); +} + +llvm::Value * +CGHLSLRuntime::emitDXILUserSemanticLoad(llvm::IRBuilder<> &B, llvm::Type *Type, + HLSLSemanticAttr *Semantic, + std::optional<unsigned> Index) { + Twine BaseName = Twine(Semantic->getAttrName()->getName()); + Twine VariableName = BaseName.concat(Twine(Index.value_or(0))); + + // DXIL packing rules etc shall be handled here. + // FIXME: generate proper sigpoint, index, col, row values. + // FIXME: also DXIL loads vectors element by element. + SmallVector<Value *> Args{B.getInt32(4), B.getInt32(0), B.getInt32(0), + B.getInt8(0), + llvm::PoisonValue::get(B.getInt32Ty())}; + + llvm::Intrinsic::ID IntrinsicID = llvm::Intrinsic::dx_load_input; + llvm::Value *Value = B.CreateIntrinsic(/*ReturnType=*/Type, IntrinsicID, Args, + nullptr, VariableName); + return Value; +} + +llvm::Value *CGHLSLRuntime::emitUserSemanticLoad( + IRBuilder<> &B, llvm::Type *Type, const clang::DeclaratorDecl *Decl, + HLSLSemanticAttr *Semantic, std::optional<unsigned> Index) { + if (CGM.getTarget().getTriple().isSPIRV()) + return emitSPIRVUserSemanticLoad(B, Type, Semantic, Index); + + if (CGM.getTarget().getTriple().isDXIL()) + return emitDXILUserSemanticLoad(B, Type, Semantic, Index); + + llvm_unreachable("Unsupported target for user-semantic load."); +} + llvm::Value *CGHLSLRuntime::emitSystemSemanticLoad( IRBuilder<> &B, llvm::Type *Type, const clang::DeclaratorDecl *Decl, Attr *Semantic, std::optional<unsigned> Index) { @@ -626,6 +699,9 @@ CGHLSLRuntime::handleScalarSemanticLoad(IRBuilder<> &B, const FunctionDecl *FD, std::optional<unsigned> Index = std::nullopt; if (Semantic->isSemanticIndexExplicit()) Index = Semantic->getSemanticIndex(); + + if (isa<HLSLUserSemanticAttr>(Semantic)) + return emitUserSemanticLoad(B, Type, Decl, Semantic, Index); return emitSystemSemanticLoad(B, Type, Decl, Semantic, Index); } diff --git a/clang/lib/CodeGen/CGHLSLRuntime.h b/clang/lib/CodeGen/CGHLSLRuntime.h index d35df524fdc84..9d31714ab8606 100644 --- a/clang/lib/CodeGen/CGHLSLRuntime.h +++ b/clang/lib/CodeGen/CGHLSLRuntime.h @@ -200,9 +200,25 @@ class CGHLSLRuntime { llvm::GlobalVariable *BufGV); void initializeBufferFromBinding(const HLSLBufferDecl *BufDecl, llvm::GlobalVariable *GV); + void initializeBufferFromBinding(const HLSLBufferDecl *BufDecl, + llvm::GlobalVariable *GV, + HLSLResourceBindingAttr *RBA); + + llvm::Value *emitSPIRVUserSemanticLoad(llvm::IRBuilder<> &B, llvm::Type *Type, + HLSLSemanticAttr *Semantic, + std::optional<unsigned> Index); + llvm::Value *emitDXILUserSemanticLoad(llvm::IRBuilder<> &B, llvm::Type *Type, + HLSLSemanticAttr *Semantic, + std::optional<unsigned> Index); + llvm::Value *emitUserSemanticLoad(llvm::IRBuilder<> &B, llvm::Type *Type, + const clang::DeclaratorDecl *Decl, + HLSLSemanticAttr *Semantic, + std::optional<unsigned> Index); + llvm::Triple::ArchType getArch(); llvm::DenseMap<const clang::RecordType *, llvm::TargetExtType *> LayoutTypes; + unsigned SPIRVLastAssignedInputSemanticLocation = 0; }; } // namespace CodeGen diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp index b9707f0036765..a06c57b15c585 100644 --- a/clang/lib/Sema/SemaHLSL.cpp +++ b/clang/lib/Sema/SemaHLSL.cpp @@ -775,6 +775,10 @@ HLSLSemanticAttr *SemaHLSL::createSemantic(const SemanticInfo &Info, DeclaratorDecl *TargetDecl) { std::string SemanticName = Info.Semantic->getAttrName()->getName().upper(); + if (dyn_cast<HLSLUserSemanticAttr>(Info.Semantic)) + return createSemanticAttr<HLSLUserSemanticAttr>(*Info.Semantic, TargetDecl, + Info.Index); + if (SemanticName == "SV_DISPATCHTHREADID") { return createSemanticAttr<HLSLSV_DispatchThreadIDAttr>( *Info.Semantic, TargetDecl, Info.Index); @@ -797,9 +801,10 @@ HLSLSemanticAttr *SemaHLSL::createSemantic(const SemanticInfo &Info, return nullptr; } -bool SemaHLSL::determineActiveSemanticOnScalar(FunctionDecl *FD, - DeclaratorDecl *D, - SemanticInfo &ActiveSemantic) { +bool SemaHLSL::determineActiveSemanticOnScalar( + FunctionDecl *FD, DeclaratorDecl *D, SemanticInfo &ActiveSemantic, + llvm::StringSet<> &ActiveInputSemantics) { + if (ActiveSemantic.Semantic == nullptr) { ActiveSemantic.Semantic = D->getAttr<HLSLSemanticAttr>(); if (ActiveSemantic.Semantic && @@ -818,11 +823,31 @@ bool SemaHLSL::determineActiveSemanticOnScalar(FunctionDecl *FD, checkSemanticAnnotation(FD, D, A); FD->addAttr(A); + + unsigned Location = ActiveSemantic.Index.value_or(0); + + const ConstantArrayType *AT = dyn_cast<ConstantArrayType>(D->getType()); + unsigned ElementCount = AT ? AT->getZExtSize() : 1; + ActiveSemantic.Index = Location + ElementCount; + + Twine BaseName = Twine(ActiveSemantic.Semantic->getAttrName()->getName()); + for (unsigned I = 0; I < ElementCount; ++I) { + Twine VariableName = BaseName.concat(Twine(Location + I)); + + auto [_, Inserted] = ActiveInputSemantics.insert(VariableName.str()); + if (!Inserted) { + Diag(D->getLocation(), diag::err_hlsl_semantic_index_overlap) + << VariableName.str(); + return false; + } + } + return true; } -bool SemaHLSL::determineActiveSemantic(FunctionDecl *FD, DeclaratorDecl *D, - SemanticInfo &ActiveSemantic) { +bool SemaHLSL::determineActiveSemantic( + FunctionDecl *FD, DeclaratorDecl *D, SemanticInfo &ActiveSemantic, + llvm::StringSet<> &ActiveInputSemantics) { if (ActiveSemantic.Semantic == nullptr) { ActiveSemantic.Semantic = D->getAttr<HLSLSemanticAttr>(); if (ActiveSemantic.Semantic && @@ -833,12 +858,13 @@ bool SemaHLSL::determineActiveSemantic(FunctionDecl *FD, DeclaratorDecl *D, const Type *T = D->getType()->getUnqualifiedDesugaredType(); const RecordType *RT = dyn_cast<RecordType>(T); if (!RT) - return determineActiveSemanticOnScalar(FD, D, ActiveSemantic); + return determineActiveSemanticOnScalar(FD, D, ActiveSemantic, + ActiveInputSemantics); const RecordDecl *RD = RT->getDecl(); for (FieldDecl *Field : RD->fields()) { SemanticInfo Info = ActiveSemantic; - if (!determineActiveSemantic(FD, Field, Info)) { + if (!determineActiveSemantic(FD, Field, Info, ActiveInputSemantics)) { Diag(Field->getLocation(), diag::note_hlsl_semantic_used_here) << Field; return false; } @@ -911,12 +937,14 @@ void SemaHLSL::CheckEntryPoint(FunctionDecl *FD) { llvm_unreachable("Unhandled environment in triple"); } + llvm::StringSet<> ActiveInputSemantics; for (ParmVarDecl *Param : FD->parameters()) { SemanticInfo ActiveSemantic; ActiveSemantic.Semantic = nullptr; ActiveSemantic.Index = std::nullopt; - if (!determineActiveSemantic(FD, Param, ActiveSemantic)) { + if (!determineActiveSemantic(FD, Param, ActiveSemantic, + ActiveInputSemantics)) { Diag(Param->getLocation(), diag::note_previous_decl) << Param; FD->setInvalidDecl(); } @@ -947,6 +975,8 @@ void SemaHLSL::checkSemanticAnnotation(FunctionDecl *EntryPoint, return; DiagnoseAttrStageMismatch(SemanticAttr, ST, {llvm::Triple::Pixel}); break; + case attr::HLSLUserSemantic: + return; default: llvm_unreachable("Unknown SemanticAttr"); } @@ -1766,7 +1796,7 @@ void SemaHLSL::handleSemanticAttr(Decl *D, const ParsedAttr &AL) { if (AL.getAttrName()->getName().starts_with_insensitive("SV_")) diagnoseSystemSemanticAttr(D, AL, Index); else - Diag(AL.getLoc(), diag::err_hlsl_unknown_semantic) << AL; + D->addAttr(createSemanticAttr<HLSLUserSemanticAttr>(AL, nullptr, Index)); } void SemaHLSL::handlePackOffsetAttr(Decl *D, const ParsedAttr &AL) { diff --git a/clang/test/CodeGenHLSL/semantics/DispatchThreadID.hlsl b/clang/test/CodeGenHLSL/semantics/DispatchThreadID.hlsl index 7aeb877072d87..b0abaeddff422 100644 --- a/clang/test/CodeGenHLSL/semantics/DispatchThreadID.hlsl +++ b/clang/test/CodeGenHLSL/semantics/DispatchThreadID.hlsl @@ -24,4 +24,3 @@ void foo(uint Idx : SV_DispatchThreadID) {} [shader("compute")] [numthreads(8,8,1)] void bar(uint2 Idx : SV_DispatchThreadID) {} - diff --git a/clang/test/CodeGenHLSL/semantics/semantic.arbitrary.hlsl b/clang/test/CodeGenHLSL/semantics/semantic.arbitrary.hlsl new file mode 100644 index 0000000000000..96d5b995fa74a --- /dev/null +++ b/clang/test/CodeGenHLSL/semantics/semantic.arbitrary.hlsl @@ -0,0 +1,36 @@ +// RUN: %clang_cc1 -triple spirv-unknown-vulkan-vertex -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV -DTARGET=spv +// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-vertex -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL -DTARGET=dx + +// CHECK-SPIRV-DAG: @AAA0 = external hidden thread_local addrspace(7) externally_initialized constant float, !spirv.Decorations ![[#METADATA_0:]] +// CHECK-SPIRV-DAG: @B0 = external hidden thread_local addrspace(7) externally_initialized constant i32, !spirv.Decorations ![[#METADATA_2:]] +// CHECK-SPIRV-DAG: @CC0 = external hidden thread_local addrspace(7) externally_initialized constant <2 x float>, !spirv.Decorations ![[#METADATA_4:]] + + +// FIXME: replace `float2 c` with a matrix when available. +void main(float a : AAA, int b : B, float2 c : CC) { + float tmp = a + b + c.x + c.y; +} +// CHECK-SPIRV: define internal spir_func void @_Z4mainfiDv2_f(float noundef nofpclass(nan inf) %a, i32 noundef %b, <2 x float> noundef nofpclass(nan inf) %c) #0 { + +// CHECK: define void @main() + +// CHECK-DXIL: %AAA0 = call float @llvm.dx.load.input.f32(i32 4, i32 0, i32 0, i8 0, i32 poison) +// CHECK-DXIL: %B0 = call i32 @llvm.dx.load.input.i32(i32 4, i32 0, i32 0, i8 0, i32 poison) +// CHECK-DXIL %CC0 = call <2 x float> @llvm.dx.load.input.v2f32(i32 4, i32 0, i32 0, i8 0, i32 poison) +// CHECK-DXIL: call void @_Z4mainfiDv2_f(float %AAA0, i32 %B0, <2 x float> %CC0) + +// CHECK-SPIRV: %[[#AAA0:]] = load float, ptr addrspace(7) @AAA0, align 4 +// CHECK-SPIRV: %[[#B0:]] = load i32, ptr addrspace(7) @B0, align 4 +// CHECK-SPIRV: %[[#CC0:]] = load <2 x float>, ptr addrspace(7) @CC0, align 8 +// CHECK-SPIRV: call spir_func void @_Z4mainfiDv2_f(float %[[#AAA0]], i32 %[[#B0]], <2 x float> %[[#CC0]]) [ "convergencectrl"(token %0) ] + + +// CHECK-SPIRV-DAG: ![[#METADATA_0]] = !{![[#METADATA_1:]]} +// CHECK-SPIRV-DAG: ![[#METADATA_2]] = !{![[#METADATA_3:]]} +// CHECK-SPIRV-DAG: ![[#METADATA_4]] = !{![[#METADATA_5:]]} + +// CHECK-SPIRV-DAG: ![[#METADATA_1]] = !{i32 30, i32 0} +// CHECK-SPIRV-DAG: ![[#METADATA_3]] = !{i32 30, i32 1} +// CHECK-SPIRV-DAG: ![[#METADATA_5]] = !{i32 30, i32 2} +// | `- Location index +// `-> Decoration "Location" diff --git a/clang/test/CodeGenHLSL/semantics/semantic.array.hlsl b/clang/test/CodeGenHLSL/semantics/semantic.array.hlsl new file mode 100644 index 0000000000000..b2cb3dad9f0ce --- /dev/null +++ b/clang/test/CodeGenHLSL/semantics/semantic.array.hlsl @@ -0,0 +1,37 @@ +// RUN: %clang_cc1 -triple spirv-linux-vulkan-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV -DTARGET=spv +// RUN: %clang_cc1 -triple dxil-px-shadermodel6.3-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL -DTARGET=dx + +struct S0 { + float4 position[2]; + float4 color; +}; + +// CHECK: %struct.S0 = type { [2 x <4 x float>], <4 x float> } + +// CHECK-SPIRV: @A0 = external hidden thread_local addrspace(7) externally_initialized constant [2 x <4 x float>], !spirv.Decorations ![[#MD_0:]] +// CHECK-SPIRV: @A2 = external hidden thread_local addrspace(7) externally_initialized constant <4 x float>, !spirv.Decorations ![[#MD_2:]] + +// CHECK: define void @main0() +// CHECK-DXIL: %A0 = call [2 x <4 x float>] @llvm.dx.load.input.a2v4f32(i32 4, i32 0, i32 0, i8 0, i32 poison) +// CHECK-DXIL: %[[#TMP0:]] = insertvalue %struct.S0 poison, [2 x <4 x float>] %A0, 0 +// CHECK-DXIL: %A2 = call <4 x float> @llvm.dx.load.input.v4f32(i32 4, i32 0, i32 0, i8 0, i32 poison) +// CHECK-DXIL: %[[#TMP1:]] = insertvalue %struct.S0 %[[#TMP0]], <4 x float> %A2, 1 + +// CHECK-SPIRV: %[[#A0:]] = load [2 x <4 x float>], ptr addrspace(7) @A0, align 16 +// CHECK-SPIRV: %[[#TMP0:]] = insertvalue %struct.S0 poison, [2 x <4 x float>] %[[#A0]], 0 +// CHECK-SPIRV: %[[#A2:]] = load <4 x float>, ptr addrspace(7) @A2, align 16 +// CHECK-SPIRV: %[[#TMP1:]] = insertvalue %struct.S0 %[[#TMP0]], <4 x float> %[[#A2]], 1 + +// CHECK: %[[#ARG:]] = alloca %struct.S0, align 16 +// CHECK: store %struct.S0 %[[#TMP1]], ptr %[[#ARG]], align 16 +// CHECK-DXIL: call void @{{.*}}main0{{.*}}(ptr %[[#ARG]]) +// CHECK-SPIRV: call spir_func void @{{.*}}main0{{.*}}(ptr %[[#ARG]]) +[shader("pixel")] +void main0(S0 p : A) { + float tmp = p.position[0] + p.position[1] + p.color; +} + +// CHECK-SPIRV: ![[#MD_0]] = !{![[#MD_1:]]} +// CHECK-SPIRV: ![[#MD_1]] = !{i32 30, i32 0} +// CHECK-SPIRV: ![[#MD_2]] = !{![[#MD_3:]]} +// CHECK-SPIRV: ![[#MD_3]] = !{i32 30, i32 2} diff --git a/clang/test/CodeGenHLSL/semantics/semantic.struct.hlsl b/clang/test/CodeGenHLSL/semantics/semantic.struct.hlsl new file mode 100644 index 0000000000000..733cf3a1a7b9d --- /dev/null +++ b/clang/test/CodeGenHLSL/semantics/semantic.struct.hlsl @@ -0,0 +1,77 @@ +// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL -DTARGET=dx +// RUN: %clang_cc1 -triple spirv-linux-vulkan-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV -DTARGET=spv + +struct S0 { + uint Idx : SV_DispatchThreadID; +}; + +// CHECK: define void @main0() +// CHECK-DXIL: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id(i32 0) +// CHECK-SPIRV: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id.i32(i32 0) +// CHECK: %[[#TMP:]] = insertvalue %struct.S0 poison, i32 %[[#ID:]], 0 +// CHECK: %[[#ARG:]] = alloca %struct.S0, align 8 +// CHECK: store %struct.S0 %[[#TMP]], ptr %[[#ARG]], align 4 +// CHECK-DXIL: call void @{{.*}}main0{{.*}}(ptr %[[#ARG]]) +// CHECK-SPIRV: call spir_func void @{{.*}}main0{{.*}}(ptr %[[#ARG]]) +[shader("compute")] +[numthreads(8,8,1)] +void main0(S0 p) {} + +struct S1 { + uint2 a : SV_DispatchThreadID; + uint2 b : SV_GroupThreadID; +}; + +// CHECK: define void @main1() +// CHECK-DXIL: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id(i32 0) +// CHECK-SPIRV: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id.i32(i32 0) +// CHECK: %[[#AX_:]] = insertelement <2 x i32> poison, i32 %[[#ID]], i64 0 +// CHECK-DXIL: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id(i32 1) +// CHECK-SPIRV: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id.i32(i32 1) +// CHECK: %[[#AXY:]] = insertelement <2 x i32> %[[#AX_]], i32 %[[#ID]], i64 1 +// CHECK: %[[#S1A_:]] = insertvalue %struct.S1 poison, <2 x i32> %[[#AXY]], 0 +// CHECK-DXIL: %[[#ID_X:]] = call i32 @llvm.[[TARGET]].thread.id.in.group(i32 0) +// CHECK-SPIRV: %[[#ID_X:]] = call i32 @llvm.[[TARGET]].thread.id.in.group.i32(i32 0) +// CHECK: %[[#ID_X_:]] = insertelement <2 x i32> poison, i32 %[[#ID_X]], i64 0 +// CHECK-DXIL: %[[#ID_Y:]] = call i32 @llvm.[[TARGET]].thread.id.in.group(i32 1) +// CHECK-SPIRV: %[[#ID_Y:]] = call i32 @llvm.[[TARGET]].thread.id.in.group.i32(i32 1) +// CHECK: %[[#ID_XY:]] = insertelement <2 x i32> %[[#ID_X_]], i32 %[[#ID_Y]], i64 1 +// CHECK: %[[#S1AB:]] = insertvalue %struct.S1 %[[#S1A_]], <2 x i32> %[[#ID_XYZ:]], 1 +// CHECK: %[[#ARG:]] = alloca %struct.S1, align 8 +// CHECK: store %struct.S1 %[[#S1AB]], ptr %[[#ARG]], align 8 +// CHECK-DXIL: call void @{{.*}}main1{{.*}}(ptr %[[#ARG]]) +// CHECK-SPIRV: call spir_func void @{{.*}}main1{{.*}}(ptr %[[#ARG]]) +[shader("compute")] +[numthreads(8,8,1)] +void main1(S1 p) {} + +struct S2C { + uint2 b : SV_GroupThreadID; +}; + +struct S2 { + uint a : SV_DispatchThreadID; + S2C child; +}; + +// CHECK: define void @main2() +// CHECK-DXIL: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id(i32 0) +// CHECK-SPIRV: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id.i32(i32 0) +// CHECK: %[[#S2A_:]] = insertvalue %struct.S2 poison, i32 %[[#ID:]], 0 + +// CHECK-DXIL: %[[#ID_X:]] = call i32 @llvm.[[TARGET]].thread.id.in.group(i32 0) +// CHECK-SPIRV: %[[#ID_X:]] = call i32 @llvm.[[TARGET]].thread.id.in.group.i32(i32 0) +// CHECK: %[[#ID_X_:]] = insertelement <2 x i32> poison, i32 %[[#ID_X]], i64 0 +// CHECK-DXIL: %[[#ID_Y:]] = call i32 @llvm.[[TARGET]].thread.id.in.group(i32 1) +// CHECK-SPIRV: %[[#ID_Y:]] = call i32 @llvm.[[TARGET]].thread.id.in.group.i32(i32 1) +// CHECK: %[[#ID_XY:]] = insertelement <2 x i32> %[[#ID_X_]], i32 %[[#ID_Y]], i64 1 +// CHECK: %[[#S2C:]] = insertvalue %struct.S2C poison, <2 x i32> %[[#ID_XY:]], 0 + +// CHECK: %[[#S2AB:]] = insertvalue %struct.S2 %[[#S2A_]], %struct.S2C %[[#S2V:]], 1 +// CHECK: %[[#ARG:]] = alloca %struct.S2, align 8 +// CHECK: store %struct.S2 %[[#S2AB]], ptr %[[#ARG]], align 1 +// CHECK-DXIL: call void @{{.*}}main2{{.*}}(ptr %[[#ARG]]) +// CHECK-SPIRV: call spir_func void @{{.*}}main2{{.*}}(ptr %[[#ARG]]) +[shader("compute")] +[numthreads(8,8,1)] +void main2(S2 p) {} diff --git a/clang/test/ParserHLSL/semantic_parsing.hlsl b/clang/test/ParserHLSL/semantic_parsing.hlsl index 726deadb7c44c..bff7bd03189e7 100644 --- a/clang/test/ParserHLSL/semantic_parsing.hlsl +++ b/clang/test/ParserHLSL/semantic_parsing.hlsl @@ -12,30 +12,33 @@ void Pony(int GI : SV_IWantAPony) { } // expected-note@+1 {{to match this '('}} void SuperPony(int GI : 0) { } -// expected-error@+1 {{unknown HLSL semantic '_'}} +// '_' is a valid CPP identifier. void MegaPony(int GI : _) { } -// expected-error@+1 {{unknown HLSL semantic 'A0A'}} +void GarguantuanPony(int GI : _1) { } + void CoolPony(int GI : A0A0) { } -// expected-error@+1 {{unknown HLSL semantic 'A_'}} void NicePony(int GI : A_0) { } -// expected-error@+1 {{unknown HLSL semantic 'A'}} void CutePony(int GI : A00) { } -// expected-error@+3 {{unknown HLSL semantic 'A'}} // expected-error@+2 {{expected ')'}} // expected-note@+1 {{to match this '('}} void DoublePony(int GI : A00 B) { } -// expected-error@+1 {{unknown HLSL semantic 'é'}} -void BigPony(int GI : é) { } +// Unicode can be used: +// https://timsong-cpp.github.io/cppwp/n3337/charname.allowed +void FrenchPony(int GI : garçon_de_café) { } +void UnicodePony(int GI : ℮) { } + +// Since P1949 seems Emojis are not allowed, even if in the range +// mentioned in N3337. +// https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p1949r7.html // expected-error@+2 {{unexpected character <U+1F60A>}} // expected-error@+1 {{expected HLSL Semantic identifier}} void UTFPony(int GI : 😊) { } -// expected-error@+2 {{character <U+1F60A> not allowed in an identifier}} -// expected-error@+1 {{unknown HLSL semantic 'PonyWithA😊'}} +// expected-error@+1 {{character <U+1F60A> not allowed in an identifier}} void SmilingPony(int GI : PonyWithA😊) { } diff --git a/clang/test/SemaHLSL/Semantics/semantics-invalid.hlsl b/clang/test/SemaHLSL/Semantics/semantics-invalid.hlsl new file mode 100644 index 0000000000000..fdba6f624d289 --- /dev/null +++ b/clang/test/SemaHLSL/Semantics/semantics-invalid.hlsl @@ -0,0 +1,17 @@ +// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -fsyntax-only -hlsl-entry main -verify %s + +typedef float t_f : SEMANTIC; // expected-warning{{'SEMANTIC' attribute only applies to parameters, non-static data members, and functions}} + +struct semantic_on_struct : SEMANTIC { // expected-error{{expected class name}} + float a; +}; + +struct s_fields_multiple_semantics { + float a : semantic_a : semantic_c; // expected-error{{use of undeclared identifier 'semantic_c'}} + float b : semantic_b; +}; + +[numthreads(1, 1, 1)] +void main() { + float a : SEM_A; // expected-warning{{'SEM_A' attribute only applies to parameters, non-static data members, and functions}} +} diff --git a/clang/test/SemaHLSL/Semantics/semantics-valid.hlsl b/clang/test/SemaHLSL/Semantics/semantics-valid.hlsl new file mode 100644 index 0000000000000..1e6bae4fcbca5 --- /dev/null +++ b/clang/test/SemaHLSL/Semantics/semantics-valid.hlsl @@ -0,0 +1,33 @@ +// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -hlsl-entry CSMain -x hlsl -finclude-default-header -ast-dump -o - %s | FileCheck %s + +struct s_fields { + float a : semantic_a; + float b : semantic_b; +// CHECK: |-CXXRecordDecl 0x{{[0-9a-fA-F]+}} <{{.*}}> line:[[@LINE-3]]:8 struct s_fields definition +// CHECK: | |-FieldDecl 0x{{[0-9a-fA-F]+}} <{{.*}}> col:9 a 'float' +// CHECK: | | `-HLSLUserSemanticAttr 0x{{[0-9a-fA-F]+}} <col:13> +// CHECK: | `-FieldDecl 0x{{[0-9a-fA-F]+}} <{{.*}}> col:9 b 'float' +// CHECK: | `-HLSLUserSemanticAttr 0x{{[0-9a-fA-F]+}} <col:13> +}; + +float fn_foo1(float a : a, float b : b) : sem_ret { return 1.0f; } +// CHECK: |-FunctionDecl {{.*}} <{{.*}}> col:7 fn_foo1 'float (float, float)' +// CHECK-NEXT: | |-ParmVarDecl {{.*}} <{{.*}}> col:21 a 'float' +// CHECK-NEXT: | | `-HLSLUserSemanticAttr {{.*}} <{{.*}}> +// CHECK-NEXT: | |-ParmVarDecl {{.*}} <{{.*}}> col:34 b 'float' +// CHECK-NEXT: | | `-HLSLUserSemanticAttr {{.*}} <{{.*}}> +// CHECK-NEXT: | |-CompoundStmt {{.*}} <{{.*}}> +// CHECK-NEXT: | | `-ReturnStmt {{.*}} <{{.*}}> +// CHECK-NEXT: | | `-FloatingLiteral {{.*}} <{{.*}}> 'float' 1.000000e+00 +// CHECK-NEXT: | `-HLSLUserSemanticAttr {{.*}} <{{.*}}> +float fn_foo2(float a : a, float b : b) : sem_ret : also_ret { return 1.0f; } +// CHECK: `-FunctionDecl {{.*}} <{{.*}}> col:7 fn_foo2 'float (float, float)' +// CHECK-NEXT: |-ParmVarDecl {{.*}} <{{.*}}> col:21 a 'float' +// CHECK-NEXT: | `-HLSLUserSemanticAttr {{.*}} <{{.*}}> +// CHECK-NEXT: |-ParmVarDecl {{.*}} <{{.*}}> col:34 b 'float' +// CHECK-NEXT: | `-HLSLUserSemanticAttr {{.*}} <{{.*}}> +// CHECK-NEXT: |-CompoundStmt {{.*}} <{{.*}}> +// CHECK-NEXT: | `-ReturnStmt {{.*}} <{{.*}}> +// CHECK-NEXT: | `-FloatingLiteral {{.*}} <{{.*}}> 'float' 1.000000e+00 +// CHECK-NEXT: |-HLSLUserSemanticAttr {{.*}} <{{.*}}> +// CHECK-NEXT: `-HLSLUserSemanticAttr {{.*}} <{{.*}}> diff --git a/llvm/include/llvm/IR/IntrinsicsDirectX.td b/llvm/include/llvm/IR/IntrinsicsDirectX.td index 9924b905aee63..d7db935ee07f1 100644 --- a/llvm/include/llvm/IR/IntrinsicsDirectX.td +++ b/llvm/include/llvm/IR/IntrinsicsDirectX.td @@ -176,4 +176,10 @@ def int_dx_firstbitlow : DefaultAttrsIntrinsic<[LLVMScalarOrSameVectorWidth<0, l def int_dx_group_memory_barrier_with_group_sync : DefaultAttrsIntrinsic<[], [], [IntrConvergent]>; + +def int_dx_load_input + : DefaultAttrsIntrinsic<[llvm_any_ty], + [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty, llvm_i8_ty, + llvm_i32_ty], + [IntrConvergent]>; } _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
