[PATCH] D58896: Suppress -Wchar-subscripts if the index is a literal char

[Stephan Bergmann via Phabricator via cfe-commits]

sberg added a comment.

In D58896#1737242 <https://reviews.llvm.org/D58896#1737242>, @edward-jones wrote:

> In D58896#1737113 <https://reviews.llvm.org/D58896#1737113>, @sberg wrote:
>
> > But how about literals like `'\x80'` where the promoted value depends on whether plain `char` is signed or unsigned?
>
>
> If 'char' is signed and index into an array then this will typically trigger an `-Warray-bounds` warning because it references before the start of the array.


My thought was more that it might be useful as a kind of portability warning.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D58896/new/

https://reviews.llvm.org/D58896