[PATCH] D124752: [HLSL] clang codeGen for HLSLShaderAttr.

Xiang Li via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon May 30 09:18:13 PDT 2022


python3kgae updated this revision to Diff 432947.
python3kgae marked an inline comment as done.
python3kgae added a comment.

Code cleanup to match comments.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124752/new/

https://reviews.llvm.org/D124752

Files:
  clang/lib/AST/Decl.cpp
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/CodeGen/CGHLSLRuntime.cpp
  clang/lib/CodeGen/CGHLSLRuntime.h
  clang/test/CodeGenHLSL/shader_type_attr.hlsl


Index: clang/test/CodeGenHLSL/shader_type_attr.hlsl
===================================================================
--- /dev/null
+++ clang/test/CodeGenHLSL/shader_type_attr.hlsl
@@ -0,0 +1,11 @@
+// RUN: %clang --driver-mode=dxc -Tlib_6_x -fcgl -Fo - %s | FileCheck %s
+
+// Make sure not mangle entry.
+// CHECK:define void @foo()
+// Make sure add function attribute.
+// CHECK:"dx.shader"="compute"
+[shader("compute")]
+[numthreads(1,1,1)]
+void foo() {
+
+}
Index: clang/lib/CodeGen/CGHLSLRuntime.h
===================================================================
--- clang/lib/CodeGen/CGHLSLRuntime.h
+++ clang/lib/CodeGen/CGHLSLRuntime.h
@@ -15,8 +15,13 @@
 #ifndef LLVM_CLANG_LIB_CODEGEN_CGHLSLRUNTIME_H
 #define LLVM_CLANG_LIB_CODEGEN_CGHLSLRUNTIME_H
 
+namespace llvm {
+class AttrBuilder;
+}
 namespace clang {
 
+class FunctionDecl;
+
 namespace CodeGen {
 
 class CodeGenModule;
@@ -30,6 +35,9 @@
   virtual ~CGHLSLRuntime() {}
 
   void finishCodeGen();
+
+  void addHLSLFunctionAttributes(llvm::AttrBuilder &FuncAttrs,
+                                 const FunctionDecl *);
 };
 
 } // namespace CodeGen
Index: clang/lib/CodeGen/CGHLSLRuntime.cpp
===================================================================
--- clang/lib/CodeGen/CGHLSLRuntime.cpp
+++ clang/lib/CodeGen/CGHLSLRuntime.cpp
@@ -50,3 +50,13 @@
   llvm::Module &M = CGM.getModule();
   addDxilValVersion(TargetOpts.DxilValidatorVersion, M);
 }
+
+void CGHLSLRuntime::addHLSLFunctionAttributes(llvm::AttrBuilder &FuncAttrs,
+                                              const FunctionDecl *FD) {
+  if (HLSLShaderAttr *ShaderAttr = FD->getAttr<HLSLShaderAttr>()) {
+    const StringRef ShaderAttrKindStr = "dx.shader";
+    FuncAttrs.addAttribute(
+        ShaderAttrKindStr,
+        ShaderAttr->ConvertShaderTypeToStr(ShaderAttr->getType()));
+  }
+}
Index: clang/lib/CodeGen/CGCall.cpp
===================================================================
--- clang/lib/CodeGen/CGCall.cpp
+++ clang/lib/CodeGen/CGCall.cpp
@@ -16,6 +16,7 @@
 #include "CGBlocks.h"
 #include "CGCXXABI.h"
 #include "CGCleanup.h"
+#include "CGHLSLRuntime.h"
 #include "CGRecordLayout.h"
 #include "CodeGenFunction.h"
 #include "CodeGenModule.h"
@@ -2601,6 +2602,11 @@
   }
   assert(ArgNo == FI.arg_size());
 
+  if (getLangOpts().HLSL && TargetDecl) {
+    if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(TargetDecl))
+      getHLSLRuntime().addHLSLFunctionAttributes(FuncAttrs, FD);
+  }
+
   AttrList = llvm::AttributeList::get(
       getLLVMContext(), llvm::AttributeSet::get(getLLVMContext(), FuncAttrs),
       llvm::AttributeSet::get(getLLVMContext(), RetAttrs), ArgAttrs);
Index: clang/lib/AST/Decl.cpp
===================================================================
--- clang/lib/AST/Decl.cpp
+++ clang/lib/AST/Decl.cpp
@@ -3281,7 +3281,7 @@
 }
 
 bool FunctionDecl::isInExternCContext() const {
-  if (hasAttr<OpenCLKernelAttr>())
+  if (hasAttr<OpenCLKernelAttr>() || hasAttr<HLSLShaderAttr>())
     return true;
   return getLexicalDeclContext()->isExternCContext();
 }


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D124752.432947.patch
Type: text/x-patch
Size: 3066 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20220530/b1a64f84/attachment-0001.bin>


More information about the cfe-commits mailing list