[Bug tree-optimization/92860] [8/9/10/11 regression] Global flags affected by -O settings are clobbered by optimize attribute

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92860

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |marxin at gcc dot gnu.org

--- Comment #25 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to David Binderman from comment #24)
> Is this error message related ?
> 
> /home/dcb/gcc/results.20200611/lib/gcc/x86_64-pc-linux-gnu/11.0.0/include/
> xsaveoptintrin.h:55:9: internal compiler error: Error: global_options are
> modified in local context
> 
>    55 | #pragma GCC pop_options
>       |         ^~~
> 0xe6fefe cl_optimization_compare(gcc_options*, gcc_options*)
> 	/home/dcb/gcc/working/gcc/options-save.c:0
> 0x97c7b9 handle_pragma_pop_options(cpp_reader*)
> 	../../trunk.git/gcc/c-family/c-pragma.c:1090
> 0x7a0565 cp_parser_pragma(cp_parser*, pragma_context, bool*)
> 	../../trunk.git/gcc/cp/parser.c:43983
> 0x79d432 cp_parser_toplevel_declaration(cp_parser*)
> 	../../trunk.git/gcc/cp/parser.c:13502
> 
> It seems to be a preprocessor crash, so I don't know how to reduce
> the test case.

Yes, it's definitely related.
Please attach -E file and a command line.