llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-codegen
Author: Helena Kotas (hekota)
<details>
<summary>Changes</summary>
Introduces `__builtin_hlsl_buffer_update_counter` clang buildin that is used to
implement the `IncrementCounter` and `DecrementCounter` methods on
`RWStructuredBuffer` and `RasterizerOrderedStructuredBuffer` (see Note).
The builtin is translated to LLVM intrisic `llvm.dx.bufferUpdateCounter` or
`llvm.spv.bufferUpdateCounter`.
Introduces `BuiltinTypeMethodBuilder` helper in `HLSLExternalSemaSource` that
allows adding methods to builtin types using builder pattern like this:
```
BuiltinTypeMethodBuilder(Sema, RecordBuilder, "MethodName", ReturnType)
.addParam("param_name", Type, InOutModifier)
.callBuiltin("buildin_name", { BuiltinParams })
.finalizeMethod();
```
Note: `RasterizerOrderedStructuredBuffer` does not exist yet, it is being added
in PR llvm/llvm-project#<!-- -->113648. After llvm/llvm-project#<!-- -->113648
is merged this PR will be updated to add `Increment`/`DecrementCounter` on this
buffer type as well.
Fixes #<!-- -->113513
---
Patch is 25.28 KiB, truncated to 20.00 KiB below, full version:
https://github.com/llvm/llvm-project/pull/114148.diff
12 Files Affected:
- (modified) clang/include/clang/Basic/Builtins.td (+6-1)
- (modified) clang/include/clang/Basic/DiagnosticSemaKinds.td (+4)
- (modified) clang/lib/CodeGen/CGBuiltin.cpp (+8)
- (modified) clang/lib/CodeGen/CGHLSLRuntime.h (+1)
- (modified) clang/lib/Sema/HLSLExternalSemaSource.cpp (+247-31)
- (modified) clang/lib/Sema/SemaExpr.cpp (+4)
- (modified) clang/lib/Sema/SemaHLSL.cpp (+41)
- (added) clang/test/CodeGenHLSL/builtins/StructuredBuffers-methods-lib.hlsl
(+25)
- (added) clang/test/CodeGenHLSL/builtins/StructuredBuffers-methods-ps.hlsl
(+29)
- (added) clang/test/SemaHLSL/BuiltIns/buffer_update_counter-errors.hlsl (+22)
- (modified) llvm/include/llvm/IR/IntrinsicsDirectX.td (+3)
- (modified) llvm/include/llvm/IR/IntrinsicsSPIRV.td (+3)
``````````diff
diff --git a/clang/include/clang/Basic/Builtins.td
b/clang/include/clang/Basic/Builtins.td
index 90475a361bb8f8..72bc2d5e7df23e 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -4846,7 +4846,6 @@ def HLSLSaturate : LangBuiltin<"HLSL_LANG"> {
let Prototype = "void(...)";
}
-
def HLSLSelect : LangBuiltin<"HLSL_LANG"> {
let Spellings = ["__builtin_hlsl_select"];
let Attributes = [NoThrow, Const];
@@ -4871,6 +4870,12 @@ def HLSLRadians : LangBuiltin<"HLSL_LANG"> {
let Prototype = "void(...)";
}
+def HLSLBufferUpdateCounter : LangBuiltin<"HLSL_LANG"> {
+ let Spellings = ["__builtin_hlsl_buffer_update_counter"];
+ let Attributes = [NoThrow, Const];
+ let Prototype = "uint32_t(...)";
+}
+
// Builtins for XRay.
def XRayCustomEvent : Builtin {
let Spellings = ["__xray_customevent"];
diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td
b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index 8e4718008ece72..2aea6bb657578a 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -7256,6 +7256,8 @@ def err_typecheck_illegal_increment_decrement : Error<
"cannot %select{decrement|increment}1 value of type %0">;
def err_typecheck_expect_int : Error<
"used type %0 where integer is required">;
+def err_typecheck_expect_hlsl_resource : Error<
+ "used type %0 where __hlsl_resource_t is required">;
def err_typecheck_arithmetic_incomplete_or_sizeless_type : Error<
"arithmetic on a pointer to %select{an incomplete|sizeless}0 type %1">;
def err_typecheck_pointer_arith_function_type : Error<
@@ -12485,6 +12487,8 @@ def warn_attr_min_eq_max: Warning<
def err_hlsl_attribute_number_arguments_insufficient_shader_model: Error<
"attribute %0 with %1 arguments requires shader model %2 or greater">;
+def err_hlsl_expect_arg_const_int_one_or_neg_one: Error<
+ "argument %0 must be constant integer 1 or -1">;
// Layout randomization diagnostics.
def err_non_designated_init_used : Error<
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index e2d03eff8ab4a0..71273de3400b17 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -18959,6 +18959,14 @@ case Builtin::BI__builtin_hlsl_elementwise_isinf: {
CGM.getHLSLRuntime().getRadiansIntrinsic(), ArrayRef<Value *>{Op0},
nullptr, "hlsl.radians");
}
+ case Builtin::BI__builtin_hlsl_buffer_update_counter: {
+ Value *ResHandle = EmitScalarExpr(E->getArg(0));
+ Value *Offset = EmitScalarExpr(E->getArg(1));
+ return Builder.CreateIntrinsic(
+ /*ReturnType=*/Offset->getType(),
+ CGM.getHLSLRuntime().getBufferUpdateCounterIntrinsic(),
+ ArrayRef<Value *>{ResHandle, Offset}, nullptr);
+ }
}
return nullptr;
}
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.h
b/clang/lib/CodeGen/CGHLSLRuntime.h
index ff7df41b5c62e7..aac93dfc373ed4 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.h
+++ b/clang/lib/CodeGen/CGHLSLRuntime.h
@@ -93,6 +93,7 @@ class CGHLSLRuntime {
GENERATE_HLSL_INTRINSIC_FUNCTION(WaveReadLaneAt, wave_readlane)
GENERATE_HLSL_INTRINSIC_FUNCTION(CreateHandleFromBinding, handle_fromBinding)
+ GENERATE_HLSL_INTRINSIC_FUNCTION(BufferUpdateCounter, bufferUpdateCounter)
//===----------------------------------------------------------------------===//
// End of reserved area for HLSL intrinsic getters.
diff --git a/clang/lib/Sema/HLSLExternalSemaSource.cpp
b/clang/lib/Sema/HLSLExternalSemaSource.cpp
index ce8564429b3802..24c3954b134c5f 100644
--- a/clang/lib/Sema/HLSLExternalSemaSource.cpp
+++ b/clang/lib/Sema/HLSLExternalSemaSource.cpp
@@ -22,12 +22,15 @@
#include "clang/Sema/SemaHLSL.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Frontend/HLSL/HLSLResource.h"
+#include "llvm/Support/ErrorHandling.h"
#include <functional>
using namespace clang;
using namespace llvm::hlsl;
+static DeclRefExpr *lookupBuiltinFunction(Sema &S, StringRef Name);
+
namespace {
struct TemplateParameterListBuilder;
@@ -121,12 +124,8 @@ struct BuiltinTypeDeclBuilder {
TypeSourceInfo *ElementTypeInfo = nullptr;
QualType ElemTy = Ctx.Char8Ty;
- if (Template) {
- if (const auto *TTD = dyn_cast<TemplateTypeParmDecl>(
- Template->getTemplateParameters()->getParam(0))) {
- ElemTy = QualType(TTD->getTypeForDecl(), 0);
- }
- }
+ if (Template)
+ ElemTy = getFirstTemplateTypeParam();
ElementTypeInfo = Ctx.getTrivialTypeSourceInfo(ElemTy, SourceLocation());
// add handle member with resource type attributes
@@ -145,25 +144,6 @@ struct BuiltinTypeDeclBuilder {
return *this;
}
- static DeclRefExpr *lookupBuiltinFunction(ASTContext &AST, Sema &S,
- StringRef Name) {
- IdentifierInfo &II = AST.Idents.get(Name, tok::TokenKind::identifier);
- DeclarationNameInfo NameInfo =
- DeclarationNameInfo(DeclarationName(&II), SourceLocation());
- LookupResult R(S, NameInfo, Sema::LookupOrdinaryName);
- // AllowBuiltinCreation is false but LookupDirect will create
- // the builtin when searching the global scope anyways...
- S.LookupName(R, S.getCurScope());
- // FIXME: If the builtin function was user-declared in global scope,
- // this assert *will* fail. Should this call LookupBuiltin instead?
- assert(R.isSingleResult() &&
- "Since this is a builtin it should always resolve!");
- auto *VD = cast<ValueDecl>(R.getFoundDecl());
- QualType Ty = VD->getType();
- return DeclRefExpr::Create(AST, NestedNameSpecifierLoc(), SourceLocation(),
- VD, false, NameInfo, Ty, VK_PRValue);
- }
-
static Expr *emitResourceClassExpr(ASTContext &AST, ResourceClass RC) {
return IntegerLiteral::Create(
AST,
@@ -211,12 +191,8 @@ struct BuiltinTypeDeclBuilder {
ASTContext &AST = Record->getASTContext();
QualType ElemTy = AST.Char8Ty;
- if (Template) {
- if (const auto *TTD = dyn_cast<TemplateTypeParmDecl>(
- Template->getTemplateParameters()->getParam(0))) {
- ElemTy = QualType(TTD->getTypeForDecl(), 0);
- }
- }
+ if (Template)
+ ElemTy = getFirstTemplateTypeParam();
QualType ReturnTy = ElemTy;
FunctionProtoType::ExtProtoInfo ExtInfo;
@@ -282,6 +258,23 @@ struct BuiltinTypeDeclBuilder {
return *this;
}
+ FieldDecl *getResourceHandleField() {
+ FieldDecl *FD = Fields["h"];
+ if (FD && FD->getType()->isHLSLAttributedResourceType())
+ return FD;
+ return nullptr;
+ }
+
+ QualType getFirstTemplateTypeParam() {
+ if (Template) {
+ if (const auto *TTD = dyn_cast<TemplateTypeParmDecl>(
+ Template->getTemplateParameters()->getParam(0))) {
+ return QualType(TTD->getTypeForDecl(), 0);
+ }
+ }
+ return QualType();
+ }
+
BuiltinTypeDeclBuilder &startDefinition() {
if (Record->isCompleteDefinition())
return *this;
@@ -302,6 +295,10 @@ struct BuiltinTypeDeclBuilder {
TemplateParameterListBuilder addTemplateArgumentList(Sema &S);
BuiltinTypeDeclBuilder &addSimpleTemplateParams(Sema &S,
ArrayRef<StringRef> Names);
+
+ // Builtin types methods
+ BuiltinTypeDeclBuilder &addIncrementCounterMethod(Sema &S);
+ BuiltinTypeDeclBuilder &addDecrementCounterMethod(Sema &S);
};
struct TemplateParameterListBuilder {
@@ -359,6 +356,176 @@ struct TemplateParameterListBuilder {
return Builder;
}
};
+
+// Builder for methods of builtin types. Allows adding methods to builtin types
+// using the builder pattern like this:
+//
+// BuiltinTypeMethodBuilder(Sema, RecordBuilder, "MethodName", ReturnType)
+// .addParam("param_name", Type, InOutModifier)
+// .callBuiltin("buildin_name", { BuiltinParams })
+// .finalizeMethod();
+//
+// The builder needs to have all of the method parameters before it can create
+// a CXXMethodDecl. It collects them in addParam calls and when a first
+// method that builds the body is called it creates the CXXMethodDecl and
+// ParmVarDecls instances. These can then be referenced from the body building
+// methods. Destructor or an explicit call to finalizeMethod() will complete
+// the method definition.
+struct BuiltinTypeMethodBuilder {
+ struct MethodParam {
+ const IdentifierInfo &NameII;
+ QualType Ty;
+ HLSLParamModifierAttr::Spelling Modifier;
+ MethodParam(const IdentifierInfo &NameII, QualType Ty,
+ HLSLParamModifierAttr::Spelling Modifier)
+ : NameII(NameII), Ty(Ty), Modifier(Modifier) {}
+ };
+
+ BuiltinTypeDeclBuilder &DeclBuilder;
+ Sema &S;
+ DeclarationNameInfo NameInfo;
+ QualType ReturnTy;
+ CXXMethodDecl *Method;
+ llvm::SmallVector<MethodParam> Params;
+ llvm::SmallVector<Stmt *> StmtsList;
+
+public:
+ BuiltinTypeMethodBuilder(Sema &S, BuiltinTypeDeclBuilder &DB, StringRef Name,
+ QualType ReturnTy)
+ : DeclBuilder(DB), S(S), ReturnTy(ReturnTy), Method(nullptr) {
+ const IdentifierInfo &II =
+ S.getASTContext().Idents.get(Name, tok::TokenKind::identifier);
+ NameInfo = DeclarationNameInfo(DeclarationName(&II), SourceLocation());
+ }
+
+ BuiltinTypeMethodBuilder &addParam(StringRef Name, QualType Ty,
+ HLSLParamModifierAttr::Spelling Modifier =
+ HLSLParamModifierAttr::Keyword_in) {
+ assert(Method == nullptr && "Cannot add param, method already created");
+
+ const IdentifierInfo &II =
+ S.getASTContext().Idents.get(Name, tok::TokenKind::identifier);
+ Params.emplace_back(II, Ty, Modifier);
+ return *this;
+ }
+
+private:
+ void createMethodDecl() {
+ assert(Method == nullptr && "Method already created");
+
+ // create method type
+ ASTContext &AST = S.getASTContext();
+ SmallVector<QualType> ParamTypes;
+ for (auto &MP : Params)
+ ParamTypes.emplace_back(MP.Ty);
+ QualType MethodTy = AST.getFunctionType(ReturnTy, ParamTypes,
+ FunctionProtoType::ExtProtoInfo());
+
+ // create method decl
+ auto *TSInfo = AST.getTrivialTypeSourceInfo(MethodTy, SourceLocation());
+ Method =
+ CXXMethodDecl::Create(AST, DeclBuilder.Record, SourceLocation(),
+ NameInfo, MethodTy, TSInfo, SC_None, false,
false,
+ ConstexprSpecKind::Unspecified,
SourceLocation());
+
+ // create params & set them to the function prototype
+ SmallVector<ParmVarDecl *> ParmDecls;
+ auto FnProtoLoc =
+
Method->getTypeSourceInfo()->getTypeLoc().getAs<FunctionProtoTypeLoc>();
+ unsigned i = 0;
+ for (auto &MP : Params) {
+ ParmVarDecl *Parm = ParmVarDecl::Create(
+ AST, Method->getDeclContext(), SourceLocation(), SourceLocation(),
+ &MP.NameII, MP.Ty,
+ AST.getTrivialTypeSourceInfo(MP.Ty, SourceLocation()), SC_None,
+ nullptr);
+ if (MP.Modifier != HLSLParamModifierAttr::Keyword_in) {
+ auto *Mod =
+ HLSLParamModifierAttr::Create(AST, SourceRange(), MP.Modifier);
+ Parm->addAttr(Mod);
+ }
+ ParmDecls.push_back(Parm);
+ FnProtoLoc.setParam(i++, Parm);
+ }
+ Method->setParams({ParmDecls});
+ }
+
+ void addResourceHandleToParms(SmallVector<Expr *> &Parms) {
+ ASTContext &AST = S.getASTContext();
+ FieldDecl *HandleField = DeclBuilder.getResourceHandleField();
+ auto *This = CXXThisExpr::Create(
+ AST, SourceLocation(), Method->getFunctionObjectParameterType(), true);
+ Parms.push_back(MemberExpr::CreateImplicit(AST, This, false, HandleField,
+ HandleField->getType(),
+ VK_LValue, OK_Ordinary));
+ }
+
+public:
+ ~BuiltinTypeMethodBuilder() { finalizeMethod(); }
+
+ BuiltinTypeMethodBuilder &
+ callBuiltin(StringRef BuiltinName, ArrayRef<Expr *> CallParms,
+ bool AddResourceHandleAsFirstArg = true) {
+ if (!Method)
+ createMethodDecl();
+
+ ASTContext &AST = S.getASTContext();
+ DeclRefExpr *Fn = lookupBuiltinFunction(S, BuiltinName);
+ Expr *Call = nullptr;
+
+ if (AddResourceHandleAsFirstArg) {
+ SmallVector<Expr *> NewCallParms;
+ addResourceHandleToParms(NewCallParms);
+ for (auto *P : CallParms)
+ NewCallParms.push_back(P);
+
+ Call = CallExpr::Create(AST, Fn, NewCallParms, AST.VoidPtrTy, VK_PRValue,
+ SourceLocation(), FPOptionsOverride());
+ } else {
+ Call = CallExpr::Create(AST, Fn, CallParms, AST.VoidPtrTy, VK_PRValue,
+ SourceLocation(), FPOptionsOverride());
+ }
+ StmtsList.push_back(Call);
+ return *this;
+ }
+
+ BuiltinTypeMethodBuilder &
+ callBuiltinForwardArgs(StringRef BuiltinName,
+ bool AddResourceHandleAsFirstArg = true) {
+ // FIXME: Call the buildin with all of the method parameters
+ // plus optional resource handle as the first arg.
+ llvm_unreachable("not yet implemented");
+ }
+
+ BuiltinTypeDeclBuilder &finalizeMethod() {
+ if (DeclBuilder.Record->isCompleteDefinition())
+ return DeclBuilder;
+
+ if (!Method)
+ createMethodDecl();
+
+ if (!Method->hasBody()) {
+ ASTContext &AST = S.getASTContext();
+ if (ReturnTy != AST.VoidTy && !StmtsList.empty()) {
+ if (Expr *LastExpr = dyn_cast<Expr>(StmtsList.back())) {
+ StmtsList.pop_back();
+ StmtsList.push_back(
+ ReturnStmt::Create(AST, SourceLocation(), LastExpr, nullptr));
+ }
+ }
+
+ Method->setBody(CompoundStmt::Create(AST, StmtsList, FPOptionsOverride(),
+ SourceLocation(),
SourceLocation()));
+ Method->setLexicalDeclContext(DeclBuilder.Record);
+ Method->setAccess(AccessSpecifier::AS_public);
+ Method->addAttr(AlwaysInlineAttr::CreateImplicit(
+ AST, SourceRange(), AlwaysInlineAttr::CXX11_clang_always_inline));
+ DeclBuilder.Record->addDecl(Method);
+ }
+ return DeclBuilder;
+ }
+};
+
} // namespace
TemplateParameterListBuilder
@@ -375,6 +542,30 @@ BuiltinTypeDeclBuilder::addSimpleTemplateParams(Sema &S,
return Builder.finalizeTemplateArgs();
}
+BuiltinTypeDeclBuilder &
+BuiltinTypeDeclBuilder::addIncrementCounterMethod(Sema &S) {
+ ASTContext &AST = S.getASTContext();
+ Expr *One =
+ IntegerLiteral::Create(AST, llvm::APInt(AST.getTypeSize(AST.IntTy), 1),
+ AST.IntTy, SourceLocation());
+ return BuiltinTypeMethodBuilder(S, *this, "IncrementCounter",
+ AST.UnsignedIntTy)
+ .callBuiltin("__builtin_hlsl_buffer_update_counter", {One})
+ .finalizeMethod();
+}
+
+BuiltinTypeDeclBuilder &
+BuiltinTypeDeclBuilder::addDecrementCounterMethod(Sema &S) {
+ ASTContext &AST = S.getASTContext();
+ Expr *NegOne =
+ IntegerLiteral::Create(AST, llvm::APInt(AST.getTypeSize(AST.IntTy), -1),
+ AST.IntTy, SourceLocation());
+ return BuiltinTypeMethodBuilder(S, *this, "DecrementCounter",
+ AST.UnsignedIntTy)
+ .callBuiltin("__builtin_hlsl_buffer_update_counter", {NegOne})
+ .finalizeMethod();
+}
+
HLSLExternalSemaSource::~HLSLExternalSemaSource() {}
void HLSLExternalSemaSource::InitializeSema(Sema &S) {
@@ -528,8 +719,13 @@ void
HLSLExternalSemaSource::defineHLSLTypesWithForwardDeclarations() {
ResourceKind::TypedBuffer, /*IsROV=*/false,
/*RawBuffer=*/true)
.addArraySubscriptOperators()
+ .addIncrementCounterMethod(*SemaPtr)
+ .addDecrementCounterMethod(*SemaPtr)
.completeDefinition();
});
+
+ // FIXME: Also add Increment/DecrementCounter to
+ // RasterizerOrderedStructuredBuffer when llvm/llvm-project/#113648 is
merged.
}
void HLSLExternalSemaSource::onCompletion(CXXRecordDecl *Record,
@@ -552,3 +748,23 @@ void HLSLExternalSemaSource::CompleteType(TagDecl *Tag) {
return;
It->second(Record);
}
+
+static DeclRefExpr *lookupBuiltinFunction(Sema &S, StringRef Name) {
+ IdentifierInfo &II =
+ S.getASTContext().Idents.get(Name, tok::TokenKind::identifier);
+ DeclarationNameInfo NameInfo =
+ DeclarationNameInfo(DeclarationName(&II), SourceLocation());
+ LookupResult R(S, NameInfo, Sema::LookupOrdinaryName);
+ // AllowBuiltinCreation is false but LookupDirect will create
+ // the builtin when searching the global scope anyways...
+ S.LookupName(R, S.getCurScope());
+ // FIXME: If the builtin function was user-declared in global scope,
+ // this assert *will* fail. Should this call LookupBuiltin instead?
+ assert(R.isSingleResult() &&
+ "Since this is a builtin it should always resolve!");
+ auto *VD = cast<ValueDecl>(R.getFoundDecl());
+ QualType Ty = VD->getType();
+ return DeclRefExpr::Create(S.getASTContext(), NestedNameSpecifierLoc(),
+ SourceLocation(), VD, false, NameInfo, Ty,
+ VK_PRValue);
+}
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index ff6616901016ab..770bd4a81633e1 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -986,6 +986,10 @@ Sema::VarArgKind Sema::isValidVarArgType(const QualType
&Ty) {
if (getLangOpts().MSVCCompat)
return VAK_MSVCUndefined;
+ if (getLangOpts().HLSL &&
+ Ty->getUnqualifiedDesugaredType()->isHLSLAttributedResourceType())
+ return VAK_Valid;
+
// FIXME: In C++11, these cases are conditionally-supported, meaning we're
// permitted to reject them. We should consider doing so.
return VAK_Undefined;
diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp
index 1f6c5b8d4561bc..1b7f0456a3e82a 100644
--- a/clang/lib/Sema/SemaHLSL.cpp
+++ b/clang/lib/Sema/SemaHLSL.cpp
@@ -1860,6 +1860,31 @@ static bool CheckVectorSelect(Sema *S, CallExpr
*TheCall) {
return false;
}
+static bool CheckResourceHandle(Sema *S, CallExpr *TheCall, unsigned ArgIndex)
{
+ assert(TheCall->getNumArgs() >= ArgIndex);
+ QualType ArgType = TheCall->getArg(ArgIndex)->getType();
+ if (!ArgType.getTypePtr()
+ ->getUnqualifiedDesugaredType()
+ ->isHLSLAttributedResourceType()) {
+ S->Diag(TheCall->getArg(0)->getBeginLoc(),
+ diag::err_typecheck_expect_hlsl_resource)
+ << ArgType;
+ return true;
+ }
+ return false;
+}
+
+static bool CheckInt(Sema *S, CallExpr *TheCall, unsigned ArgIndex) {
+ assert(TheCall->getNumArgs() >= ArgIndex);
+ QualType ArgType = TheCall->getArg(ArgIndex)->getType();
+ if (!ArgType->isIntegerType()) {
+ S->Diag(TheCall->getArg(0)->getBeginLoc(), diag::err_typecheck_expect_int)
+ << ArgType;
+ return true;
+ }
+ return false;
+}
+
// Note: returning true in this case results in CheckBuiltinFunctionCall
// returning an ExprError
bool SemaHLSL::CheckBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall)
{
@@ -2100,6 +2125,22 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned
BuiltinID, CallExpr *TheCall) {
return true;
break;
}
+ case Builtin::BI__builtin_hlsl_buffer_update_counter: {
+ if (SemaRef.checkArgCount(TheCall, 2) ||
+ CheckResourceHandle(&SemaRef, TheCall, 0) ||
+ CheckInt(&SemaRef, TheCall, 1))
+ return true;
+ Expr *OffsetExpr = TheCall->getArg(1);
+ std::optional<llvm::APSInt> Offset =
+ OffsetExpr->getIntegerConstantExpr(SemaRef.getASTContext());
+ if (!Offset.has_value() || abs(Offset->getExtValue()) != 1) {
+ SemaRef.Diag(TheCall->getArg(1)->getBeginLoc(),
+ diag::err_hlsl_expect_arg_const_int_one_or_neg_one)
+ << 1;
+ return true;
+ }
+ break;
+ }
}
return false;
}
diff --git a/clang/test/CodeGenHLSL/builtins/StructuredBuffers-methods-lib.hlsl
b/clang/test/CodeGenHLSL/builtins/StructuredBuffers-methods-lib.hlsl
new file mode 100644
index 00000000000000..c8ff5d3cd905fb
--- /dev/null
+++ b/clang/test/CodeGenHLSL/builtins/StructuredBuffers-methods-lib.hlsl
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -x hlsl -emit-llvm
-disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
+// RUN-DISABLED...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/114148
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