[Bug tree-optimization/61829] New: SEGV in fold_binary_loc for gcc.dg/graphite/isl-codegen-loop-dumping.c

[Bug tree-optimization/61829] New: SEGV in fold_binary_loc for gcc.dg/graphite/isl-codegen-loop-dumping.c

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61829

            Bug ID: 61829
           Summary: SEGV in fold_binary_loc for
                    gcc.dg/graphite/isl-codegen-loop-dumping.c
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: romangareev at gcc dot gnu.org
              Host: i386-pc-solaris2.11, sparc-sun-solaris2.11
            Target: i386-pc-solaris2.11, sparc-sun-solaris2.11
             Build: i386-pc-solaris2.11, sparc-sun-solaris2.11

Between 20140711 (r212451) and 20140716 (r212663), the
gcc.dg/graphite/isl-codegen-loop-dumping.c testcase started to FAIL (32-bit
only) on Solaris/x86 and SPARC:

FAIL: gcc.dg/graphite/isl-codegen-loop-dumping.c (internal compiler error)
FAIL: gcc.dg/graphite/isl-codegen-loop-dumping.c (test for excess errors)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
0x084af7eb in fold_binary_loc (loc=0, code=MINUS_EXPR, type=0x0, 
    op0=0xfac63528, op1=0xfac0458c)
    at /vol/gcc/src/hg/trunk/local/gcc/fold-const.c:10814
10814             && !TYPE_OVERFLOW_TRAPS (type))
(gdb) where
#0  0x084af7eb in fold_binary_loc (loc=0, code=MINUS_EXPR, type=0x0, 
    op0=0xfac63528, op1=0xfac0458c)
    at /vol/gcc/src/hg/trunk/local/gcc/fold-const.c:10814
#1  0x084d3450 in fold_build2_stat_loc (loc=0, code=MINUS_EXPR, type=0x0, 
    op0=0xfac63528, op1=0xfac0458c)
    at /vol/gcc/src/hg/trunk/local/gcc/fold-const.c:14988
#2  0x08bea952 in binary_op_to_tree (ip=..., expr=0x953a328, type=0x0)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:175
#3  gcc_expression_from_isl_expr_op (ip=..., expr=0x953a328, type=0x0)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:317
#4  gcc_expression_from_isl_expression (type=0x0, expr=0x953a328, ip=...)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:348
#5  0x08bea766 in binary_op_to_tree (ip=..., expr=0x9517968, type=0x0)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:164
#6  gcc_expression_from_isl_expr_op (ip=..., expr=0x9517968, type=0x0)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:317
#7  gcc_expression_from_isl_expression (type=0x0, expr=0x9517968, ip=...)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:348
#8  0x08beac55 in graphite_create_new_loop_guard (ip=..., 
    ub=<synthetic pointer>, lb=<synthetic pointer>, type=<synthetic pointer>, 
    node_for=0x949e178, entry_edge=0xfac63f00)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:501
#9  translate_isl_ast_node_for (ip=..., next_e=0xfac63f00, node=0x949e178, 
    context_loop=0xfac0e6b4)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:536
#10 translate_isl_ast (context_loop=0xfac0e6b4, node=0x949e178, 
    next_e=0xfac63f00, ip=...)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:558
#11 0x08beb246 in graphite_regenerate_ast_isl (scop=0x9513840)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite-isl-ast-to-gimple.c:699
#12 0x08be65aa in graphite_transform_loops ()
    at /vol/gcc/src/hg/trunk/local/gcc/graphite.c:304
#13 0x08be6632 in graphite_transforms (fun=0xfacb2000)
    at /vol/gcc/src/hg/trunk/local/gcc/graphite.c:333
#14 (anonymous namespace)::pass_graphite_transforms::execute (this=0x94a24b0, 
    fun=0xfacb2000) at /vol/gcc/src/hg/trunk/local/gcc/graphite.c:413
#15 0x0864c2e0 in execute_one_pass (pass=0x94a24b0)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2149
#16 0x0864c85f in execute_pass_list_1 (pass=0x94a24b0)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2201
#17 0x0864c872 in execute_pass_list_1 (pass=0x94a2468)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2202
#18 0x0864c872 in execute_pass_list_1 (pass=0x94a2150)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2202
#19 0x0864c872 in execute_pass_list_1 (pass=0x94a14f0, pass@entry=0x94a1460)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2202
#20 0x0864c8bb in execute_pass_list (fn=0xfacb2000, pass=0x94a1460)
    at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2212
#21 0x083c8c97 in expand_function (node=node@entry=0xfac071a8)
    at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1786
#22 0x083cae98 in expand_all_functions ()
    at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1920
#23 compile () at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:2264
#24 0x083cb56b in finalize_compilation_unit ()
    at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:2341
#25 0x0828f24b in c_write_global_declarations ()
    at /vol/gcc/src/hg/trunk/local/gcc/c/c-decl.c:10463
#26 0x087028e5 in compile_file ()
    at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:562
#27 0x08704bec in do_compile ()
    at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:1946
#28 toplev_main (argc=19, argv=0xfeffe398)
    at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:2022
#29 0x08f0cb7b in main (argc=19, argv=0xfeffe398)
    at /vol/gcc/src/hg/trunk/local/gcc/main.c:36
(gdb) p type
$1 = (tree) 0x0

This is almost certainly due to

2014-07-11  Roman Gareev  <gareevroman@gmail.com>

    * graphite-isl-ast-to-gimple.c (gmp_cst_to_tree): New function.
    (graphite_verify): New function.
    (ivs_params_clear): New function.
[...]

which went in as r212455.

  Rainer

[Bug tree-optimization/61829] SEGV in fold_binary_loc for gcc.dg/graphite/isl-codegen-loop-dumping.c

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61829

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.10.0

[Bug tree-optimization/61829] SEGV in fold_binary_loc for gcc.dg/graphite/isl-codegen-loop-dumping.c

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61829

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-07-17
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Patch at https://gcc.gnu.org/ml/gcc-patches/2014-07/msg00902.html.

[Bug tree-optimization/61829] SEGV in fold_binary_loc for gcc.dg/graphite/isl-codegen-loop-dumping.c

[romangareev at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61829

romangareev at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from romangareev at gcc dot gnu.org ---
This was fixed in r212863.