[Bug target/86007] precompiled header on bdver2 with -march=native triggers a "created and used with differing settings of '-mlwp'" warning, intermittently

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86007

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*, i?86-*-*
          Component|pch                         |target

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It sounds like -mlwp is detected randomly..

On current trunk I get it consistently detected when doing

> gcc -S t.c -march=native -v 2>&1 | grep lwp | sed -e 
> 's/.*\(-m\(no-\)\?lwp\).*/\1/'

repeatedly on a simple empty input.