[clang] [llvm] [HLSL][DXIL] InterlockedOr and InterlockedOr64 builtins (PR #180804)

[Alexander Johnston via cfe-commits]

================
@@ -2017,5 +1840,87 @@ BuiltinTypeDeclBuilder::addGetDimensionsMethodForBuffer() {
       .finalize();
 }
 
+BuiltinTypeDeclBuilder &
+BuiltinTypeDeclBuilder::addInterlockedMethodsForBuffer() {
+  using PH = BuiltinTypeMethodBuilder::PlaceHolder;
+  ASTContext &AST = SemaRef.getASTContext();
+  QualType UIntTy = AST.UnsignedIntTy;
+  QualType IntTy = AST.IntTy;
+
+  BuiltinTypeMethodBuilder(*this, "InterlockedOr", AST.VoidTy)
+      .addParam("dest", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("value", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .callBuiltin("__builtin_hlsl_interlocked_or", QualType(), PH::Handle,
+                   PH::_0, PH::_1)
+      .finalize();
+
+  BuiltinTypeMethodBuilder(*this, "InterlockedOr", AST.VoidTy)
+      .addParam("dest", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("value", IntTy, HLSLParamModifierAttr::Keyword_in)
+      .callBuiltin("__builtin_hlsl_interlocked_or", QualType(), PH::Handle,
+                   PH::_0, PH::_1)
+      .finalize();
+
+  BuiltinTypeMethodBuilder(*this, "InterlockedOr", AST.VoidTy)
+      .addParam("dest", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("value", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("original_value", UIntTy, HLSLParamModifierAttr::Keyword_out)
+      .callBuiltin("__builtin_hlsl_interlocked_or_ret_uint", UIntTy, PH::Handle,
+                   PH::_0, PH::_1, PH::_2)
+      .finalize();
+
+  return BuiltinTypeMethodBuilder(*this, "InterlockedOr", AST.VoidTy)
+      .addParam("dest", UIntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("value", IntTy, HLSLParamModifierAttr::Keyword_in)
+      .addParam("original_value", IntTy, HLSLParamModifierAttr::Keyword_out)
+      .callBuiltin("__builtin_hlsl_interlocked_or_ret_int", IntTy, PH::Handle,
+                   PH::_0, PH::_1, PH::_2)
+      .finalize();
+}
+
+BuiltinTypeDeclBuilder &
+BuiltinTypeDeclBuilder::addInterlocked64MethodsForBuffer() {
----------------
Alexander-Johnston wrote:

It was just to make it a bit clearer that the 64bit functions wouldn't be added if we weren't in SM6.6 and above.
And yes, intention was to have all the interlocked functions here, but given the number and similarity of them it might be nicest to add a macro in here when we do the subsequent ones to reduce the code size.

https://github.com/llvm/llvm-project/pull/180804