[PATCH] D106790: prfchwintrin.h: Make _m_prefetchw take a pointer to volatile (PR49124)

[Hans Wennborg via Phabricator via cfe-commits]

hans added a comment.

> Sure, they won't be included together, but will GCC users get warnings from passing non-volatile pointers to `_mm_prefetchw`? If we change these qualifiers to match MSVC, will GCC/Clang users be able to observe any change in behavior?

I don't think that should cause any problems. Passing a less qualified pointer to a more cv-qualified parameter should be fine, e.g.

  void f(volatile void* p);
  
  void g(void *p) {
    f(p);
  }


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106790/new/

https://reviews.llvm.org/D106790