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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/94250] New: valgrind error for ./g++.dg/ipa/remref-1.C
Date: Sat, 21 Mar 2020 14:31:50 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94250

            Bug ID: 94250
           Summary: valgrind error for ./g++.dg/ipa/remref-1.C
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

For testsuite file ./g++.dg/ipa/remref-1.C, compiled by recent trunk
in a valgrind version and compiler flag -O2, does this:

=3D=3D1825381=3D=3D Invalid read of size 2
=3D=3D1825381=3D=3D    at 0x853A7C: symtab_node::clone_reference(ipa_ref*, =
gimple*)
(symtab.c:712)
=3D=3D1825381=3D=3D    by 0xA4F665: ipa_edge_args_sum_t::duplicate(cgraph_e=
dge*,
cgraph_edge*, ipa_edge_args*, ipa_edge_args*) (ipa-prop.c:4226)
=3D=3D1825381=3D=3D    by 0xA58061:
call_summary<ipa_edge_args*>::symtab_duplication(cgraph_edge*, cgraph_edge*,
void*) (symbol-summary.h:737)
=3D=3D1825381=3D=3D    by 0x85CBD3: call_edge_duplication_hooks (cgraph.c:4=
50)=