[Bug c++/86815] New: [ 8 regression ] ICE on valid code on armhf

["costamagnagianfranco at yahoo dot it" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86815

            Bug ID: 86815
           Summary: [ 8 regression ] ICE on valid code on armhf
           Product: gcc
           Version: 8.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: costamagnagianfranco at yahoo dot it
  Target Milestone: ---

I got the ICE while compiling armhf code, I'm attaching the preprocessed source
to this bug report.

This happens with the new gcc 8.2, and it works with previous gcc-7 and also
gcc-snapshot dated 1:20180721-1

This happens while compiling hedgewars

cd
/home/locutusofborg/hedgewars-0.9.24.1-dfsg/obj-arm-linux-gnueabihf/QTfrontend
&& c++  -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_NO_DEBUG
-DQT_WIDGETS_LIB -DVIDEOREC -D__STDC_CONSTANT_MACROS
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/misc/libphyslayer
-I/usr/include/arm-linux-gnueabihf/qt5/QtCore/5.11.1
-I/usr/include/arm-linux-gnueabihf/qt5/QtCore/5.11.1/QtCore -I/usr/include/SDL2
-I/usr/include/arm-linux-gnueabihf
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/obj-arm-linux-gnueabihf/QTfrontend
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/model
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/net
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/ui
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/ui/dialog
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/ui/page
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/ui/widget
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/util
-I/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/util/platform
-I/usr/include/lua5.1 -I/usr/local/include -isystem
/usr/include/arm-linux-gnueabihf/qt5 -isystem
/usr/include/arm-linux-gnueabihf/qt5/QtCore -isystem
/usr/lib/arm-linux-gnueabihf/qt5/mkspecs/linux-g++ -isystem
/usr/include/arm-linux-gnueabihf/qt5/QtWidgets -isystem
/usr/include/arm-linux-gnueabihf/qt5/QtGui -isystem
/usr/include/arm-linux-gnueabihf/qt5/QtNetwork  -g -O2
-fdebug-prefix-map=/home/locutusofborg/hedgewars-0.9.24.1-dfsg=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -fPIC -fstack-protector-all -fstack-protector
-fvisibility=hidden -Wall -pipe -O2 -g -DNDEBUG   -fPIC -std=gnu++11 -o
CMakeFiles/hedgewars.dir/model/HatModel.cpp.o -c
/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/model/HatModel.cpp
In file included from
/usr/include/arm-linux-gnueabihf/qt5/QtCore/qvariant.h:47,
                 from
/usr/include/arm-linux-gnueabihf/qt5/QtCore/qabstractitemmodel.h:43,
                 from
/usr/include/arm-linux-gnueabihf/qt5/QtGui/qstandarditemmodel.h:44,
                 from
/usr/include/arm-linux-gnueabihf/qt5/QtGui/QStandardItemModel:1,
                 from
/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/model/HatModel.h:27,
                 from
/home/locutusofborg/hedgewars-0.9.24.1-dfsg/QTfrontend/model/HatModel.cpp:24:
/usr/include/arm-linux-gnueabihf/qt5/QtCore/qmap.h:1215:25: internal compiler
error: Segmentation fault
     using QMap<Key, T>::remove;
                         ^~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-8/README.Bugs> for instructions.


compilation works with -O1, and also with gcc-7