https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67778
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #10) > (In reply to Segher Boessenkool from comment #9) > > I cannot reproduce the problem, #c2, not with any flags I tried, > > not with a 20151122 compiler either. Help? > > #c2 testcase, x86_64-linux compiler, -m32 -O2, reproduces this for me > reliably. > Say with -mtune=generic -march=i386 (or -march=x86_64, or -march=i686). > -m32 -O3 too. r231142 reproduces it too. > -m32 -O2 -fno-shrink-wrap does not ICE. Are you using a cross-compiler from > some other target? But it reproduces on #c2 also with -m64 -O2 and -m64 -O3. In all cases it is Block 10 needs the prologue. After wrapping required blocks, PRO is now 10 Avoiding non-duplicatable blocks, PRO is now 10 Bumping back to anticipatable blocks, PRO is now 9 Performing shrink-wrapping. on main, where bb10 is not in any loop, but bb9 is part of a loop.
