[all-commits] [llvm/llvm-project] e3fd0b: [HLSL] Add resource binding attribute for HLSL.

[Xiang Li via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e3fd0b20731f559ba90a9a32f6489499a63cf2b5
      https://github.com/llvm/llvm-project/commit/e3fd0b20731f559ba90a9a32f6489499a63cf2b5
  Author: Xiang Li <python3kgae at outlook.com>
  Date:   2022-09-22 (Thu, 22 Sep 2022)

  Changed paths:
    M clang/include/clang/Basic/Attr.td
    M clang/include/clang/Basic/AttrDocs.td
    M clang/include/clang/Basic/DiagnosticParseKinds.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/Parse/ParseHLSL.cpp
    M clang/lib/Sema/SemaDeclAttr.cpp
    A clang/test/AST/HLSL/resource_binding_attr.hlsl
    A clang/test/SemaHLSL/resource_binding_attr_error.hlsl

  Log Message:
  -----------
  [HLSL] Add resource binding attribute for HLSL.

The resource binding attribute is to set the virtual registers and logical register spaces resources in HLSL are bound to.
Format is ''register(ID,  space)'' like register(t3,  space1).
ID must be start with
t – for shader resource views (SRV),
s – for samplers,
u – for unordered access views (UAV),
b – for constant buffer views (CBV).

Register space is default to space0.

The full documentation is available here: https://docs.microsoft.com/en-us/windows/win32/direct3d12/resource-binding-in-hlsl

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D130033