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From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/64872] New: [5 Regression] ICE: Segmentation fault during Chromium PGO build
Date: Fri, 30 Jan 2015 09:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64872

            Bug ID: 64872
           Summary: [5 Regression] ICE: Segmentation fault during Chromium
                    PGO build
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org

Created attachment 34625
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34625&action=edit
testcase

Chromium build fails during -fprofile-use phase:

markus@x4 /tmp % g++ -c -O2 -fprofile-use -fprofile-correction -fno-exceptions
-fno-rtti -std=gnu++11 pickle.ii
../../base/pickle.cc:372:1: internal compiler error: Segmentation fault
0xc9823f crash_signal
        ../../gcc/gcc/toplev.c:381
0xa1811a aggregate_value_p(tree_node const*, tree_node const*)
        ../../gcc/gcc/function.c:2037
0xa1ec4e allocate_struct_function(tree_node*, bool)
        ../../gcc/gcc/function.c:4788
0x903823 cgraph_node::create_wrapper(cgraph_node*)
        ../../gcc/gcc/cgraphunit.c:2407
0x129f8cb ipa_icf::sem_function::merge(ipa_icf::sem_item*)
        ../../gcc/gcc/ipa-icf.c:766
0x12a4ca1 ipa_icf::sem_item_optimizer::merge_classes(unsigned int)
        ../../gcc/gcc/ipa-icf.c:2383
0x12a9a7c ipa_icf::sem_item_optimizer::execute()
        ../../gcc/gcc/ipa-icf.c:1734
0x12aa311 ipa_icf_driver
        ../../gcc/gcc/ipa-icf.c:2461
0x12aa311 ipa_icf::pass_ipa_icf::execute(function*)
        ../../gcc/gcc/ipa-icf.c:2509
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.

As expected -fno-ipa-icf "fixes" the issue.