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From: "glaubitz at physik dot fu-berlin.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/95381] [11 Regression]: Bootstrap on m68k fails with
 ICE: in operator[], at vec.h:867
Date: Fri, 16 Oct 2020 11:50:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95381

--- Comment #8 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-be=
rlin.de> ---
(In reply to Richard Biener from comment #7)
> Still broken?

Unfortunately, yes:

> https://buildd.debian.org/status/fetch.php?pkg=3Dgcc-snapshot&arch=3Dm68k=
&ver=3D1%3A20201002-1&stamp=3D1601807222&raw=3D0

echo timestamp > stmp-int-hdrs
/<<PKGBUILDDIR>>/build-jit/./gcc/xgcc -B/<<PKGBUILDDIR>>/build-jit/./gcc/ -=
xc
-nostdinc /dev/null -S -o /dev/null
-fself-test=3D../../src/gcc/testsuite/selftests
/<<PKGBUILDDIR>>/build-jit/./gcc/xgcc -B/<<PKGBUILDDIR>>/build-jit/./gcc/ -=
xc++
-nostdinc /dev/null -S -o /dev/null
-fself-test=3D../../src/gcc/testsuite/selftests
cc1: internal compiler error: in operator[], at vec.h:880
mmap: Bad file descriptor
close: Bad file descriptor
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-snapshot/README.Bugs> for instructions.
cc1plus: internal compiler error: in operator[], at vec.h:880
mmap: Bad file descriptor
close: Bad file descriptor
Please submit a full bug report,
with preprocessed source if appropriate.

I might try a full rebuild in a different environment.

gcc-10 builds fine, FWIW.=