https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99123
--- Comment #2 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to G. Steinmetz from comment #0) > Affects versions down to at least r5 at -O1+. > Testfile derived from gcc/testsuite/gcc.target/i386/20020729-1.c > with string "1" changed to "" : > > > $ gcc-11-20210214 -c z1.c -O2 > during RTL pass: reload > z1.c: In function 'foo': > z1.c:48:1: internal compiler error: in decompose_normal_address, at > rtlanal.c:6710 > 48 | } > | ^ > 0xb10f70 decompose_normal_address > ../../gcc/rtlanal.c:6710 Thank you for reporting this. I've reproduced the crash and started working on it. I guess the fix will be ready this week.