https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109484
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |xry111 at gcc dot gnu.org
--- Comment #8 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #7)
> Similar bug. The basic GCC expectations for inline-asm is that the whole
> assembly template after substitutions (which is for GCC mostly intentionally
> a black box) works as a single instruction which reads all its inputs (and
> that obviously doesn't mean just the input themselves, but also any other
> register/memory used in the input) and then stores all its outputs.
> Early clobbers are the way to tell the compiler that it is not the case and
> some output is written before all the inputs are used.
Should we add this info into the doc?
