https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61210
--- Comment #5 from David Binderman <dcb314 at hotmail dot com> --- (In reply to Richard Biener from comment #4) > Can you try to use -O0 with clang as it is otherwise the default for the host > compiler invocations? > > Thus, it may very well be a miscompilation by clang. I think I'm right in saying that boot compiler (clang here) only does stage1. Hence a difference between stage2 and stage3 AFAIK can't be produced by clang. However, I tried out what you suggested and it made no difference. Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1plus-checksum.o differs Bootstrap comparison failure! gcc/simplify-rtx.o differs gcc/fold-const.o differs gcc/tree-ssa-ccp.o differs make[2]: *** [compare] Error 1 I'll try again in a few days time.
