[Bug 214456] lang/gcc6: -r424540: FreeBSD's full bootstrap fails the stage 2 vs. 3 comparison the build stops (powerpc 32-bit anyway)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214456

--- Comment #8 from Mark Millard <markmi at dsl-only.net> ---
(In reply to Mark Millard from comment #7)

I looked at a armv6 example (which did not fail the comparison). It also has
(read-rtl.c example):

Stage 2: -g -gtoggle
Stage 3: -g

Being successful for the comparison it does not leave . . ./work/. . . having
copies of the likes of the compared stage2 and stage3 read-rtl.o files : just
the one final one at . . ./work/.build/gcc/build/read-rtl.o .

Still it suggests that Stage 2 had debug information turned off by -gtoggle
while Stage 3 had it turned on --yet the comparison passed.

Unfortunately this might mean having to look at the details of the comparison
technique for powerpc and the data it was processing to find what makes it
classify its read-rtl.o's as mismatched.

Merely noting the variations in having debug information vs. not is apparently
not enough to have a mismatch as the classification. Bad assumption on my part,
just like the tie to WITH_DEBUG was a bad assumption on my part.


Still 32-bit powerpc does fail its comparison so the bugzilla report still
applies overall. It just would read better and quicker if I could eliminate my
false assumptions from the description and comments.

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