[Bug tree-optimization/59745] New: [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[Bug tree-optimization/59745] New: [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

            Bug ID: 59745
           Summary: [4.9 Regression] internal compiler error: tree check:
                    expected tree that contains 'typed' structure, have
                    '<invalid tree code>' in operand_equal_p, at
                    fold-const.c:2492
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: jakub at redhat dot com

On Linux/x86-64, r206384 caused:

gfortran -c -o ccaux.o -O3 -funroll-loops -ffast-math -ffixed-form ccaux.f
ccaux.f: In function 'trmd':
ccaux.f:846:0: internal compiler error: tree check: expected tree that contains
'typed' structure, have '<invalid tree code>' in operand_equal_p, at
fold-const.c:2492
       SUBROUTINE TRMD(VP,TI,NU,NO,ID)
 ^
0xc151a4 tree_contains_struct_check_failed(tree_node const*,
tree_node_structure_enum, char const*, int, char const*)
    ../../src-trunk/gcc/tree.c:9364
0x7b01c4 contains_struct_check
    ../../src-trunk/gcc/tree.h:3031
0x7b01c4 operand_equal_p(tree_node const*, tree_node const*, unsigned int)
    ../../src-trunk/gcc/fold-const.c:2492
0xf16ce6 aff_combination_add_elt(aff_tree*, tree_node*, double_int)
    ../../src-trunk/gcc/tree-affine.c:145
0xf17102 aff_combination_add(aff_tree*, aff_tree*)
    ../../src-trunk/gcc/tree-affine.c:213
0xf186a2 aff_combination_expand(aff_tree*, pointer_map_t**)
    ../../src-trunk/gcc/tree-affine.c:713
0xa89041 aff_combination_dr_offset
    ../../src-trunk/gcc/tree-predcom.c:640
0xa8915f determine_offset
    ../../src-trunk/gcc/tree-predcom.c:681
0xa8dc80 split_data_refs_to_components
    ../../src-trunk/gcc/tree-predcom.c:790
0xa8dc80 tree_predictive_commoning_loop
    ../../src-trunk/gcc/tree-predcom.c:2444
0xa8f3a7 tree_predictive_commoning()
    ../../src-trunk/gcc/tree-predcom.c:2551
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
specmake[3]: *** [ccaux.o] Error 1
specmake[3]: *** Waiting for unfinished jobs....

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-01-10
   Target Milestone|---                         |4.9.0
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
This is 416.gamess in SPEC CPU 2006.

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
#0  internal_error (
    gmsgid=0x14cea90 "tree check: expected tree that contains %qs structure,
have %qs in %s, at %s:%d") at /export/gnu/import/git/gcc/gcc/diagnostic.c:1127
#1  0x0000000000e69ab1 in tree_contains_struct_check_failed (
    node=0x7ffff18d08e8, en=TS_TYPED, 
    file=0x1444888 "/export/gnu/import/git/gcc/gcc/fold-const.c", line=2492, 
    function=0x1449ec0 <operand_equal_p(tree_node const*, tree_node const*,
unsigned int)::__FUNCTION__> "operand_equal_p")
    at /export/gnu/import/git/gcc/gcc/tree.c:9364
#2  0x00000000006af1d0 in contains_struct_check (__t=0x7ffff18d08e8, 
    __s=TS_TYPED, __f=0x1444888 "/export/gnu/import/git/gcc/gcc/fold-const.c", 
    __l=2492, 
    __g=0x1449ec0 <operand_equal_p(tree_node const*, tree_node const*, unsigned
int)::__FUNCTION__> "operand_equal_p")
    at /export/gnu/import/git/gcc/gcc/tree.h:3033
#3  0x00000000008ac99c in operand_equal_p (arg0=0x7ffff1a41528, 
    arg1=0x7ffff18d08e8, flags=0)
    at /export/gnu/import/git/gcc/gcc/fold-const.c:2492
Python Exception <type 'exceptions.UnicodeDecodeError'> 'utf8' codec can't
decode byte 0x8b in position 1: invalid start byte: 
#4  0x00000000012f74f9 in aff_combination_add_elt (comb=0x7fffffffd360, elt=, 
    scale=...) at /export/gnu/import/git/gcc/gcc/tree-affine.c:145
#5  0x00000000012f7952 in aff_combination_add (comb1=0x7fffffffd360, 
    comb2=0x7fffffffd450) at /export/gnu/import/git/gcc/gcc/tree-affine.c:213
#6  0x00000000012f9a7c in aff_combination_expand (comb=0x7fffffffd810, 
---Type <return> to continue, or q <return> to quit---
    cache=0x1c68a50 <name_expansions>)
    at /export/gnu/import/git/gcc/gcc/tree-affine.c:713
#7  0x00000000012f9b11 in tree_to_aff_combination_expand (
    expr=<nop_expr 0x7ffff17362e0>,
    type=<integer_type 0x7ffff18b31f8 ssizetype>, comb=0x7fffffffd810, 
    cache=0x1c68a50 <name_expansions>)
    at /export/gnu/import/git/gcc/gcc/tree-affine.c:734
#8  0x0000000000c73edf in aff_combination_dr_offset (dr=0x1fab080, 
    offset=0x7fffffffd810) at /export/gnu/import/git/gcc/gcc/tree-predcom.c:640
#9  0x0000000000c740e8 in determine_offset (a=0x1fab080, b=0x2007d90, 
    off=0x7fffffffdb30) at /export/gnu/import/git/gcc/gcc/tree-predcom.c:681
#10 0x0000000000c7450e in split_data_refs_to_components (loop=0x7ffff14f16e0, 
    datarefs=..., depends=...)
    at /export/gnu/import/git/gcc/gcc/tree-predcom.c:790
#11 0x0000000000c784f5 in tree_predictive_commoning_loop (loop=0x7ffff14f16e0)
    at /export/gnu/import/git/gcc/gcc/tree-predcom.c:2444
#12 0x0000000000c788ab in tree_predictive_commoning ()
    at /export/gnu/import/git/gcc/gcc/tree-predcom.c:2551
#13 0x0000000000c7891d in run_tree_predictive_commoning ()
    at /export/gnu/import/git/gcc/gcc/tree-predcom.c:2572
#14 0x0000000000c78987 in (anonymous namespace)::pass_predcom::execute (
    this=0x1cc1190) at /export/gnu/import/git/gcc/gcc/tree-predcom.c:2607
#15 0x0000000000ad1072 in execute_one_pass (
---Type <return> to continue, or q <return> to quit---
    pass=<opt_pass* 0x1cc1190 "pcom"(121)>)
    at /export/gnu/import/git/gcc/gcc/passes.c:2226

#16 0x0000000000ad128b in execute_pass_list (
    pass=<opt_pass* 0x1cc1190 "pcom"(121)>)
    at /export/gnu/import/git/gcc/gcc/passes.c:2279
#17 0x0000000000ad12bc in execute_pass_list (pass=
    <opt_pass* 0x1cc09b0 "loop"(101)>)
    at /export/gnu/import/git/gcc/gcc/passes.c:2280
#18 0x0000000000ad12bc in execute_pass_list (
    pass=<opt_pass* 0x1cbf8d0 "*all_optimizations"(-1)>)
    at /export/gnu/import/git/gcc/gcc/passes.c:2280
#19 0x00000000007acfec in expand_function (
    node=<cgraph_node* 0x7ffff1730000 "trmd">)
    at /export/gnu/import/git/gcc/gcc/cgraphunit.c:1764
#20 0x00000000007ad5e0 in expand_all_functions ()
    at /export/gnu/import/git/gcc/gcc/cgraphunit.c:1898
#21 0x00000000007adfac in compile ()
    at /export/gnu/import/git/gcc/gcc/cgraphunit.c:2242
#22 0x00000000007ae125 in finalize_compilation_unit ()
    at /export/gnu/import/git/gcc/gcc/cgraphunit.c:2319
#23 0x0000000000a1dbcd in write_global_declarations ()
    at /export/gnu/import/git/gcc/gcc/langhooks.c:323
#24 0x0000000000667550 in gfc_write_global_declarations ()
---Type <return> to continue, or q <return> to quit---
    at /export/gnu/import/git/gcc/gcc/fortran/f95-lang.c:262
#25 0x0000000000bbc1d8 in compile_file ()
    at /export/gnu/import/git/gcc/gcc/toplev.c:562
#26 0x0000000000bbe324 in do_compile ()
    at /export/gnu/import/git/gcc/gcc/toplev.c:1914
#27 0x0000000000bbe48f in toplev_main (argc=19, argv=0x7fffffffe088)
    at /export/gnu/import/git/gcc/gcc/toplev.c:1990
#28 0x000000000133f87c in main (argc=19, argv=0x7fffffffe088)
    at /export/gnu/import/git/gcc/gcc/main.c:36
(gdb)

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31792
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31792&action=edit
gcc49-pr59745.patch

Totally untested fix.  As this is only reproduceable in bootstrapped build, -O0
built stage1 doesn't fail, this is just a guess what the problem is, will try
to verify later on with bootstrap (but, because of that I think adding a
reduced testcase is not really useful either).  If that is the case, it would
be a latent bug before, as determine_offset has been called before for
read/read and could put items into the affine cache.

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan 10 20:37:52 2014
New Revision: 206540

URL: http://gcc.gnu.org/viewcvs?rev=206540&root=gcc&view=rev
Log:
    PR tree-optimization/59745
    * tree-predcom.c (tree_predictive_commoning_loop): Call
    free_affine_expand_cache if giving up because components is NULL.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-predcom.c

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.

[Bug tree-optimization/59745] [4.9 Regression] internal compiler error: tree check: expected tree that contains 'typed' structure, have '<invalid tree code>' in operand_equal_p, at fold-const.c:2492

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59745

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jan 13 08:41:39 2014
New Revision: 206573

URL: http://gcc.gnu.org/viewcvs?rev=206573&root=gcc&view=rev
Log:
    PR tree-optimization/59745
    * tree-predcom.c (tree_predictive_commoning_loop): Call
    free_affine_expand_cache if giving up because components is NULL.

Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-predcom.c