[Bug rtl-optimization/80499] ICE on RTL code on x86_64-linux-gnu in "extract_insn"

[helloqirun at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80499

--- Comment #3 from Qirun Zhang <helloqirun at gmail dot com> ---
(In reply to Richard Biener from comment #2)
> Do you have a C fragment producing this RTL?

Hi Richard,

The original RTL file is at testsuite/gcc.dg/rtl/x86_64/final.c. 
The original C file seems to be testsuite/gcc.dg/rtl/test.c with modifications.