[Bug ipa/64564] New: Internal compiler error: Segmentation fault caused by IPA ICF

[Bug ipa/64564] New: Internal compiler error: Segmentation fault caused by IPA ICF

[Hale.Wang at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64564

            Bug ID: 64564
           Summary: Internal compiler error: Segmentation fault caused by
                    IPA ICF
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Hale.Wang at arm dot com

Created attachment 34417
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34417&action=edit
Generated by pre-compile the source code from
newlib/newlib/libc/stdlib/envlock.c

GCC build fails for ARM target(caused by the IPA ICF update @219377).

I built the latest gcc trunk with the configuration: '--target=arm-none-eabi'.

The compile command is: 'arm-none-eabi-gcc -O2 envlock.i -S -mthumb'.(The
attachment envlock.i is generated by pre-compile the source code from
newlib/newlib/libc/stdlib/envlock.c)

And the error message is reported as: 
newlib/newlib/libc/stdlib/envlock.c:61:1: internal compiler error: Segmentation
fault
 }
 ^
0xa421ff crash_signal
    ../../src/gcc/gcc/toplev.c:366
0xf728af tree_check
    ../../src/gcc/gcc/tree.h:2778
0xf728af target_opts_for_fn
    ../../src/gcc/gcc/tree.h:4681
0xf728af ipa_icf::sem_function::equals_private(ipa_icf::sem_item*,
hash_map<symtab_node*, ipa_icf::sem_item*, default_hashmap_traits>&)
    ../../src/gcc/gcc/ipa-icf.c:431
0xf73533 ipa_icf::sem_function::equals(ipa_icf::sem_item*,
hash_map<symtab_node*, ipa_icf::sem_item*, default_hashmap_traits>&)
    ../../src/gcc/gcc/ipa-icf.c:386
0xf7596a ipa_icf::sem_item_optimizer::subdivide_classes_by_equality(bool)
    ../../src/gcc/gcc/ipa-icf.c:1893
0xf7a29c ipa_icf::sem_item_optimizer::execute()
    ../../src/gcc/gcc/ipa-icf.c:1712
0xf7aec1 ipa_icf_driver
    ../../src/gcc/gcc/ipa-icf.c:2441
0xf7aec1 ipa_icf::pass_ipa_icf::execute(function*)
    ../../src/gcc/gcc/ipa-icf.c:2489
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.

Best regards,
-Hale Wang

[Bug ipa/64564] Internal compiler error: Segmentation fault caused by IPA ICF

[Hale.Wang at arm dot com]

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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64564

--- Comment #2 from Hale Wang <Hale.Wang at arm dot com> ---
(In reply to Uroš Bizjak from comment #1)
> Already fixed.
> 
> *** This bug has been marked as a duplicate of bug 64551 ***

I have confirmed that this bug is already fixed. Thank you very much.
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Subject: [Bug ipa/64550] [5 Regression] IPA fixes cause ICE in tree-ssa.c:939
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64550

--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Mon Jan 12 10:39:25 2015
New Revision: 219457

URL: https://gcc.gnu.org/viewcvs?rev=219457&root=gcc&view=rev
Log:
Fix for PR64550.

        PR ipa/64550
    * ipa-icf-gimple.c (func_checker::compare_memory_operand): Compare
    volatility for correct operands.
    * gcc.dg/ipa/PR64550.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/ipa/PR64550.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-icf-gimple.c
    trunk/gcc/testsuite/ChangeLog
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Subject: [Bug ipa/64550] [5 Regression] IPA fixes cause ICE in tree-ssa.c:939
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64550

--- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in 5.0.0.
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Subject: [Bug tree-optimization/64563] [5 Regression] ICE with "-Wall -Wextra" at -Os and above on x86_64-linux-gnu
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd563

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34419
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id4419&actioníit
gcc5-pr64563.patch

Untested fix.  I think == VR_RANGE is what was meant.  ~[type_min, type_max] is
very unlikely and the warning wouldn't do what is meant to do.