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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/100787] New: [12 Regression] Bootstrap failure caused
 by r12-1077
Date: Thu, 27 May 2021 02:32:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100787

            Bug ID: 100787
           Summary: [12 Regression] Bootstrap failure caused by r12-1077
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: aldyh at redhat dot com
  Target Milestone: ---
            Target: i686

On Linux/i686, r12-1077 failed to bootstrap when configured with

--prefix=3D/export/project/git/gcc-bisect-bootstrap/master/r12-1077/usr
--enable-clocale=3Dgnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=3Dsse --enable-languages=3Dc,c++ --enable-cet i686-linux
--enable-bootstrap --with-fpmath=3Dsse --disable-libcc1 --disable-libcilkrts
--disable-libsanitizer

Comparing stages 2 and 3=20
Bootstrap comparison failure!
gcc/tree-vrp.o differs=