[all-commits] [llvm/llvm-project] 61a8da: [Clang][CodeGen] Add workaround for old glibc `__P...

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 61a8da9367dc7949f36916749f6038453ea4197f
      https://github.com/llvm/llvm-project/commit/61a8da9367dc7949f36916749f6038453ea4197f
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2025-05-09 (Fri, 09 May 2025)

  Changed paths:
    M clang/lib/AST/Expr.cpp
    A clang/test/CodeGen/glibc_ptr_align.c

  Log Message:
  -----------
  [Clang][CodeGen] Add workaround for old glibc `__PTR_ALIGN` macro (#137851)

This patch adds a workaround for the old glibc `__PTR_ALIGN` macro:
```
((sizeof(long int) < sizeof(void *) ? (base) : (char *)0) +
   (((pointer) - (sizeof(long int) < sizeof(void *) ? (base) : (char *)0) +
     (align_mask)) &
    ~(align_mask)));
```
Closes https://github.com/llvm/llvm-project/issues/137833.



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