https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106237
--- Comment #2 from seurer at gcc dot gnu.org --- They use whichever mcpu matches the machine. The ICEs are fixed but there is a different problem introduced with your fix g:79f18ac6b7ab7744fcf8937ea4bc0c40f3efc629, r13-1599-g79f18ac6b7ab77 make -k check-gcc RUNTESTFLAGS="powerpc.exp=gcc.target/powerpc/pr56605.c" FAIL: gcc.target/powerpc/pr56605.c scan-rtl-dump-times combine "\\(compare:CC \\((?:and|zero_extend):(?:[SD]I) \\((?:sub)?reg:[SD]I" 1 which might just be the test case needing updating I suppose. It occurs on the same machines as the original problem. It still fails with current trunk.