[Bug tree-optimization/54886] New: [4.8 Regression] FAIL: gcc.dg/graphite/pr(42521|42771).c (internal compiler error) due to revision 192219

["dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54886

             Bug #: 54886
           Summary: [4.8 Regression] FAIL:
                    gcc.dg/graphite/pr(42521|42771).c (internal compiler
                    error) due to revision 192219
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dominiq@lps.ens.fr
                CC: hubicka@gcc.gnu.org


After revision 192219, I get

FAIL: gcc.dg/graphite/pr42521.c (internal compiler error)
FAIL: gcc.dg/graphite/pr42521.c (test for excess errors)
FAIL: gcc.dg/graphite/pr42771.c (internal compiler error)
FAIL: gcc.dg/graphite/pr42771.c (test for excess errors)

and it is still present at revision 192288. The backtrace for
gcc.dg/graphite/pr42521.c is

 foo
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> <visibility> <early_local_cleanups> <*free_inline_summary>
<emutls> <whole-program> <profile_estimate> <cp> <inline> <pure-const>
<static-var>Assembling functions:
 fooisl_ctx.c:158: isl_ctx freed, but some objects still reference it

Program received signal SIGABRT, Aborted.
0x00007fff829930b6 in __kill () from /usr/lib/libSystem.B.dylib
(gdb) bt
#0  0x00007fff829930b6 in __kill () from /usr/lib/libSystem.B.dylib
#1  0x00007fff82a339f6 in abort () from /usr/lib/libSystem.B.dylib
#2  0x0000000141487f10 in isl_ctx_free () from /opt/mp/lib/libisl.10.dylib
#3  0x00000001004d5d1f in graphite_transform_loops () at
../../work/gcc/graphite.c:299
#4  0x00000001007e545a in graphite_transforms () at
../../work/gcc/tree-ssa-loop.c:252
#5  0x00000001005efd41 in execute_one_pass (pass=<value optimized out>) at
../../work/gcc/passes.c:2320
#6  0x00000001005f01bd in execute_pass_list (pass=<value optimized out>) at
../../work/gcc/passes.c:2381
#7  0x00000001005f01cf in execute_pass_list (pass=<value optimized out>) at
../../work/gcc/passes.c:2382
#8  0x00000001005f01cf in execute_pass_list (pass=<value optimized out>) at
../../work/gcc/passes.c:2382
#9  0x00000001005f01cf in execute_pass_list (pass=<value optimized out>) at
../../work/gcc/passes.c:2382
#10 0x000000010030a50b in expand_function (node=<value optimized out>) at
../../work/gcc/cgraphunit.c:1601
#11 0x000000010030c50a in compile () at ../../work/gcc/cgraphunit.c:1705
#12 0x000000010030ccbf in finalize_compilation_unit () at
../../work/gcc/cgraphunit.c:2080
#13 0x0000000100025813 in c_write_global_declarations () at
../../work/gcc/c/c-decl.c:10118
#14 0x00000001006abe21 in compile_file () at ../../work/gcc/toplev.c:560
#15 0x00000001006adc5c in toplev_main (argc=<value optimized out>, argv=<value
optimized out>) at ../../work/gcc/toplev.c:1866
#16 0x0000000100009cc4 in start (pc=<value optimized out>, bases=0x0) at
../../../work/libgcc/unwind-dw2-fde.c:1055