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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/106126] [12 Regression] tree check fail in
 useless_type_conversion_p, at gimple-expr.cc:87 since
 r13-1184-g57424087e82db140
Date: Thu, 30 Jun 2022 19:52:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106126

David Binderman <dcb314 at hotmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com

--- Comment #15 from David Binderman <dcb314 at hotmail dot com> ---
Created attachment 53230
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53230&action=3Dedit
gzipped C++ source code


Please find attached an additional C++ test case. -O3 required this time:

$ /home/dcb/gcc/results/bin/g++ -c -O3 q1.ii
during GIMPLE pass: iftoswitch
../src/common/uri.cpp: In member function =E2=80=98const char*
wxURI::ParseUserInfo(const char*)=E2=80=99:
../src/common/uri.cpp:1086:1: internal compiler error: Segmentation fault
0x10ba099 crash_signal(int)
        ../../trunk.git/gcc/toplev.cc:322
0x134244a gimple_nop_p(gimple const*)
        ../../trunk.git/gcc/gimple.h:6747
0x134244a verify_use(basic_block_def*, basic_block_def*, ssa_use_operand_t*,
gimple*, bool, bitmap_head*)
        ../../trunk.git/gcc/tree-ssa.cc:880=