[Bug tree-optimization/71867] Optimizer generates code dereferencing a null pointer

[asmwarrior at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71867

asmwarrior <asmwarrior at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |asmwarrior at gmail dot com

--- Comment #3 from asmwarrior <asmwarrior at gmail dot com> ---
Created attachment 38908
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38908&action=edit
The preprocessed file

This is the command I use to generate the preprocessed file(a.cpp in zip)

g++ -E -o a.cpp -O2 -mthreads  -DHAVE_W32API_H -D__WXMSW__   -DNDEBUG   
-D_UNICODE   -I..\..\lib\gcc_dll\mswu -I..\..\include  -W -Wall -DWXBUILDING
-I..\..\src\tiff -I..\..\src\jpeg -I..\..\src\png -I..\..\src\zlib
-I..\..\src\regex -I..\..\src\expat\lib -DwxUSE_BASE=1 -DWXMAKINGDLL  
-Wno-ctor-dtor-privacy  -Wno-unused-local-typedefs -Wno-deprecated-declarations
-fno-keep-inline-dllexport -g -MTgcc_mswudll\monodll_xh_sizer.o
-MFgcc_mswudll\monodll_xh_sizer.o.d -MD -MP ../../src/xrc/xh_sizer.cpp

I use TDM GCC5.1 under Windows XP, I use wxWidgets 2.8.12 official release. The
command is run from the folder \build\msw\.