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Subject: [Bug middle-end/105032] Compiling inline ASM x86 causing GCC stuck
 in an endless loop with 100% CPU usage
Date: Wed, 23 Mar 2022 19:24:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105032

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jakub Jelinek from comment #7)
> Anyway, with the "b" etc. constraints (which is a good idea to use on x86
> when it has single register constraints for those but can't be used on ot=
her
> arches which do not have such constraints) you just trigger slightly
> different path in the RA, but the problem remains roughly the same, you
> force use of 6 registers as input plus one memory address and esp is a st=
ack
> pointer and ebp could be a frame pointer and it is a question if you don't
> need another register for the address of the memory input.

Since it is very unreliable, the inlined syscall with asm statement
has been removed from glibc.=