[Bug rtl-optimization/67778] [6 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in maybe_record_trace_start, at dwarf2cfi.c:2297

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67778

--- Comment #12 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Yes, I'm cross-compiling.

The only differences I see are:
* -fdwarf2-cfi-asm; this seemed promising but makes no difference.
* -mtune=generic -march=x86-64; but no dice.
* Very different ggc settings.
* Different GMP etc. versions.

The code coming in to shrink-wrap is different already.

Anyway, I have reproduced the problem (on gcc20), and I know what
the problem is.  Will have to think a bit on how to properly solve
it.

And it seems I didn't read your #c5 very carefully, ugh.  Sorry.