[libc-commits] [libc] Remove wrong float-128 extension for CLang (PR #75909)

[Guillaume Chatelet via libc-commits]

gchatelet wrote:

> > Although there is indeed a mistake, the condition should be `>= 600` and not `>= 500`.
> 
> CLang 17 gives the error message: llvm-project/libc/src/__support/FPUtil/FloatProperties.h:197:41: error: __float128 is not supported on this target

I don't see this happening : https://godbolt.org/z/vsTbT13P1

Do you have a reproducer? Are you specifying a particular `-march` or any specific compiler options through `LIBC_COMPILE_OPTIONS_DEFAULT` or `LIBC_COMMON_TUNE_OPTIONS`?

https://github.com/llvm/llvm-project/pull/75909