[all-commits] [llvm/llvm-project] 776cdd: [HLSL] Implement default constant buffer `$Globals...

[Helena Kotas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 776cddacb1ab8fd92bcb3aa42f9c0b348d8aa2ba
      https://github.com/llvm/llvm-project/commit/776cddacb1ab8fd92bcb3aa42f9c0b348d8aa2ba
  Author: Helena Kotas <hekotas at microsoft.com>
  Date:   2025-02-20 (Thu, 20 Feb 2025)

  Changed paths:
    M clang/include/clang/AST/Decl.h
    M clang/include/clang/Sema/SemaHLSL.h
    M clang/lib/AST/Decl.cpp
    M clang/lib/CodeGen/CGHLSLRuntime.cpp
    M clang/lib/CodeGen/CodeGenModule.cpp
    M clang/lib/Sema/Sema.cpp
    M clang/lib/Sema/SemaHLSL.cpp
    A clang/test/AST/HLSL/default_cbuffer.hlsl
    M clang/test/CodeGenHLSL/basic_types.hlsl
    A clang/test/CodeGenHLSL/default_cbuffer.hlsl

  Log Message:
  -----------
  [HLSL] Implement default constant buffer `$Globals` (#125807)

All variable declarations in the global scope that are not resources,
static or empty are implicitly added to implicit constant buffer
`$Globals`. They are created in `hlsl_constant` address space and
collected in an implicit `HLSLBufferDecl` node that is added to the AST
at the end of the translation unit. Codegen is the same as for explicit
constant buffers.

Fixes #123801



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