[Bug target/71161] New: [7 Regression] Lots of ASAN and libgo runtime FAILs after r236090

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71161

            Bug ID: 71161
           Summary: [7 Regression] Lots of ASAN and libgo runtime FAILs
                    after r236090
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
                CC: ienkovich at gcc dot gnu.org
  Target Milestone: ---
            Target: i?86-*-*

I have bisected the issue that I experience a lot of -m32 bit testing FAILs on
x86_64, mostly ASAN runtime errors and libgo execute FAILs.

I bisected this to r236090 using

make check-gcc RUNTESTFLAGS="--target_board=unix/-m32
asan.exp=global-overflow-1.c"

and a build with bootstrap disabled on x86_64-linux with glibc 2.11.3 and
binutils 2.24.  I do not see those FAILs on a machine with glibc 2.18 and
binutils 2.25.  IIRC using newer binutils doesn't resolve the issue.

The issue makes multilib testing on my primary dev machine useless :/