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.