[Bug target/66541] New: r224314 causes ICE in gcc.dg/torture/pr52429.c

[Bug target/66541] New: r224314 causes ICE in gcc.dg/torture/pr52429.c

[jgreenhalgh at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541

            Bug ID: 66541
           Summary: r224314 causes ICE in gcc.dg/torture/pr52429.c
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jgreenhalgh at gcc dot gnu.org
                CC: christian.bruel at st dot com
  Target Milestone: ---
            Target: arm-none-linux-gnueabihf

Created attachment 35781
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35781&action=edit
Reduced testcase

Looks closely related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64047

Reduced testcase attached, but the one in the testsuite is just as good.

.../gcc/cc1 besttry.c -O2  -ftree-parallelize-loops=4  -O2 -flto 
-fno-use-linker-plugin  -ftree-parallelize-loops=4 -o pr52429.s

 foo
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> <visibility> <build_ssa_passes> <opt_local_passes>
<free-inline-summary> <whole-program> <profile_estimate> <icf> <devirt> <cp>
<inline> <pure-const> <static-var> <single-use> <comdats>Assembling functions:
 foo
.../gcc/testsuite/gcc.dg/torture/pr52429.c: In function ‘foo’:
.../gcc/testsuite/gcc.dg/torture/pr52429.c:11:1: internal compiler error:
Segmentation fault
   int i;
 ^
0xafa15f crash_signal
        .../gcc/toplev.c:369
0x97c2b4 record_operand_costs
        .../gcc/ira-costs.c:1305
0x97c7a4 scan_one_insn
        .../gcc/ira-costs.c:1483
0x97c7a4 process_bb_for_costs
        .../gcc/ira-costs.c:1604
0x97d715 find_costs_and_classes
        .../gcc/ira-costs.c:1711
0x97ec3a ira_set_pseudo_classes(bool, _IO_FILE*)
        .../gcc/ira-costs.c:2245
0xffd743 alloc_global_sched_pressure_data
        .../gcc/haifa-sched.c:7119
0xffd743 sched_init()
        .../gcc/haifa-sched.c:7269
0xffebcf haifa_sched_init()
        .../gcc/haifa-sched.c:7281
0xaab8dc schedule_insns
        .../gcc/sched-rgn.c:3411
0xaac0b3 schedule_insns
        .../gcc/sched-rgn.c:3405
0xaac0b3 rest_of_handle_sched
        .../gcc/sched-rgn.c:3624
0xaac0b3 execute
        .../gcc/sched-rgn.c:3732
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.
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Subject: [Bug fortran/44672] [F08] ALLOCATE with SOURCE and no array-spec
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idD672

--- Comment #9 from vehre at gcc dot gnu.org ---
Author: vehre
Date: Mon Jun 15 10:08:04 2015
New Revision: 224477

URL: https://gcc.gnu.org/viewcvs?rev"4477&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:

2015-06-15  Andre Vehreschild  <vehre@gmx.de>

        PR fortran/44672
        PR fortran/45440
        PR fortran/57307
        * gfortran.dg/allocate_with_source_3.f90: Removed check for
        unimplemented error.
        * gfortran.dg/allocate_with_source_7.f08: New test.
        * gfortran.dg/allocate_with_source_8.f08: New test.

gcc/fortran/ChangeLog:

2015-06-15  Andre Vehreschild  <vehre@gmx.de>

        PR fortran/44672
        PR fortran/45440
        PR fortran/57307
        * gfortran.h: Extend gfc_code.ext.alloc to carry a
        flag indicating that the array specification has to be
        taken from expr3.
        * resolve.c (resolve_allocate_expr): Add F2008 notify
        and flag indicating source driven array spec.
        (resolve_allocate_deallocate): Check for source driven
        array spec, when array to allocate has no explicit
        array spec.
        * trans-array.c (gfc_array_init_size): Get lower and
        upper bound from a tree array descriptor, except when
        the source expression is an array-constructor which is
        fixed to be one-based.
        (retrieve_last_ref): Extracted from gfc_array_allocate().
        (gfc_array_allocate): Enable allocate(array, source        array_expression) as specified by F2008:C633.
        (gfc_conv_expr_descriptor): Add class tree expression
        into the saved descriptor for class arrays.
        * trans-array.h: Add temporary array descriptor to
        gfc_array_allocate ().
        * trans-expr.c (gfc_conv_procedure_call): Special handling
        for _copy() routine translation, that comes without an
        interface. Third and fourth argument are now passed by value.
        * trans-stmt.c (gfc_trans_allocate): Get expr3 array
        descriptor for temporary arrays to allow allocate(array,
        source = array_expression) for array without array
        specification.


Added:
    trunk/gcc/testsuite/gfortran.dg/allocate_with_source_7.f08
    trunk/gcc/testsuite/gfortran.dg/allocate_with_source_8.f08
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-array.c
    trunk/gcc/fortran/trans-array.h
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans-stmt.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/allocate_with_source_3.f90

[Bug target/66541] r224314 causes ICE in gcc.dg/torture/pr52429.c

[chrbr at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541

chrbr at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-06-15
                 CC|                            |chrbr at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from chrbr at gcc dot gnu.org ---
Confirmed.

since r217659. DECL_FUNCTION_SPECIFIC_TARGET is set with
target_option_default_node.

Needs catch up with i386 ix86_set_current_function changes.

[Bug target/66541] [5/6 Regression] r224314 causes ICE in gcc.dg/torture/pr52429.c

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.2
            Summary|r224314 causes ICE in       |[5/6 Regression] r224314
                   |gcc.dg/torture/pr52429.c    |causes ICE in
                   |                            |gcc.dg/torture/pr52429.c

[Bug target/66541] [5/6 Regression] r224314 causes ICE in gcc.dg/torture/pr52429.c

[chrbr at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541

--- Comment #2 from chrbr at gcc dot gnu.org ---
Author: chrbr
Date: Fri Jun 19 06:58:22 2015
New Revision: 224638

URL: https://gcc.gnu.org/viewcvs?rev=224638&root=gcc&view=rev
Log:
PR target/66541
PR target/52144
* config/arm/arm.c (arm_set_current_function): Handle
explicit default options.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c

[Bug target/66541] [5/6 Regression] r224314 causes ICE in gcc.dg/torture/pr52429.c

[chrbr at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541

chrbr at gcc dot gnu.org changed:

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

--- Comment #3 from chrbr at gcc dot gnu.org ---
fixed failing test with arm-cortex-linux-gnueabi. no regs

note I have the feeling that target_reinit is not always called at it should on
 execution paths when switching mode to default. However I was not able to
forge a case. IMHO this function will need rethinking when implementing fpu
target attributes