[Bug bootstrap/103820] [12 Regression] i686 failed to bootstrap with ada by r12-6077

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103820

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Roger Sayle from comment #3)
> Thanks for investigating this HJ (I'm having difficulty configuring my

You can bootstrap 32bit GCC on Linux/x86-64 if 32-bit libraries are
available.

> system to reproduce this).  Is the TARGET_64BIT guard needed by both
> peephole2s, or is one sufficient to restore bootstrap?  Your fix/workaround

I will double check.

> (disabling the optimization on -m32) looks good, but I still can't figure
> out what about this transformation is unsafe, and therefore perhaps latent
> on -m64.  Sorry again for the inconvenience.