[Bug other/53284] New: Several libatomic tests fail on 32-bit Solaris/x86

["ro at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53284

             Bug #: 53284
           Summary: Several libatomic tests fail on 32-bit Solaris/x86
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
                CC: rth@gcc.gnu.org
              Host: i386-pc-solaris2.9, i386-pc-solaris2.1[01]
            Target: i386-pc-solaris2.9, i386-pc-solaris2.1[01]
             Build: i386-pc-solaris2.9, i386-pc-solaris2.1[01]


With the libatomic build problems on Solaris out of the way, there remain a
couple
of testsuite failures for the default 32-bit multilib:

FAIL: libatomic.c/atomic-compare-exchange-4.c execution test
FAIL: libatomic.c/atomic-exchange-4.c execution test
FAIL: libatomic.c/atomic-load-4.c execution test
FAIL: libatomic.c/atomic-op-4.c execution test
FAIL: libatomic.c/atomic-store-4.c execution test
FAIL: libatomic.c/generic-2.c execution test

It seems all of them SEGV, e.g.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
0xfef823f7 in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41
(gdb) where
#0  0xfef823f7 in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41
#1  0xfef823fc in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41
#2  0xfef823fc in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41
#3  0xfef823fc in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41
#4  0xfef823fc in libat_compare_exchange_8 (mptr=0x8049e68, eptr=0x8049e70,
newval=18446744073709551615, smodel=5, fmodel=0) at
/vol/gcc/src/hg/trunk/local/libatomic/cas_n.c:41

Seems to be infinite recursion.

  Rainer