[PATCH] D79393: [clang][codegen] Refactor argument loading in function prolog. NFC.

[Michael Liao via Phabricator via cfe-commits]

hliao created this revision.
hliao added reviewers: rjmccall, kerbowa, yaxunl.
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- Skip copying function arguments and unnecessary casting by using them directly.

[clang][codegen] Hoist parameter attribute setting in function prolog.

- If the coerced type is still a pointer, it should be set with proper parameter attributes, such as `noalias`, `nonnull`, and etc. Hoist that (pointer) parameter attribute setting so that the coerced pointer parameter could be marked properly.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79393

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu

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