[Bug bootstrap/88714] [9 regression] bootstrap comparison failure on armv7l since r265398

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88714

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, the stage1-gcc compiled tree-ssa-sccvn.o is identical no matter whether
-fno-checking or -fchecking=1 was used, and doesn't fail -fcompare-debug with
either, so it is simply that something is miscompiled somewhere.
BTW, stage3-gcc/cc1 results in the same sort.s as stage1-gcc/cc1, only
stage2-gcc/cc1 is different (if it contains the stage1-gcc/cc1plus compiled and
optimized tree-ssa-sccvn.o).
Guess we want a side-by-side debugging sessions in the debugger of
stage2-gcc/cc1 on sort.i when it has tree-ssa-sccvn.o built by the host
compiler and when it has -O2 -fno-checking -g tree-ssa-sccvn.o built by the
stage1 cc1plus.