clang++ crashes when compiling simple programs

[gyn]

Hi guys,

I tried to use clang++ to build a program but failed. And then I tested clang++ with a simple program.

The command that I run is:

clang++ main.cpp -o main.exe -O3

My test program is very simple:

#include <iostream>

int main()
{
        std::cout << std::endl;

        return 0;
}

And this is the clang version:

$ pacman -Qs clang
local/mingw-w64-i686-clang 3.8.0-1
C language family frontend for LLVM (mingw-w64)

I am not sure if it is a LLVM or Clang bug but I would like to report bug here first.

Thanks.

Yanan

[gyn]

Hi guys,

Maybe the crash log would be usefull:

#0 0x04e97c60
#1 0x0028dfd0
#2 0x00e05481 _ZN12_GLOBAL__N_113SLPVectorizer13runOnFunctionERN4llvm8FunctionE.part.817.constprop.823 (C:\extra\msys32\home\yanan\MINGW-packages\mingw-w64-clang\src\build-i686\bin\clang++.exe+0xa05481)
#3 0x7783e36c RtlInitUnicodeString (C:\Windows\SysWOW64\ntdll.dll+0x2e36c)
#4 0x7783e0d2 RtlAllocateHeap (C:\Windows\SysWOW64\ntdll.dll+0x2e0d2)
#5 0x7783e36c RtlInitUnicodeString (C:\Windows\SysWOW64\ntdll.dll+0x2e36c)
#6 0x7783e0d2 RtlAllocateHeap (C:\Windows\SysWOW64\ntdll.dll+0x2e0d2)
#7 0x764a9d45 malloc (C:\Windows\syswow64\msvcrt.dll+0x9d45)
#8 0x6fef993a (C:\extra\msys32\mingw32\bin\libstdc++-6.dll+0xb993a)
#9 0x021d0c0d _ZNSt6vectorIN4llvm26BlockFrequencyInfoImplBase13FrequencyDataESaIS2_EE17_M_default_appendEj (C:\extra\msys32\home\yanan\MINGW-packages\mingw-w64-clang\src\build-i686\bin\clang++.exe+0x1dd0c0d)
#10 0x6fef993a (C:\extra\msys32\mingw32\bin\libstdc++-6.dll+0xb993a)
clang++.exe: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 3.8.0 (tags/RELEASE_380/final)
Target: i686-w64-windows-gnu
Thread model: posix
InstalledDir: C:\extra\msys32\home\yanan\MINGW-packages\mingw-w64-clang\src\build-i686\bin
clang++.exe: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script.
clang++.exe: note: diagnostic msg:

---

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++.exe: note: diagnostic msg: C:\extra\msys32\tmp\main-59abff.cpp
clang++.exe: note: diagnostic msg: C:\extra\msys32\tmp\main-59abff.sh
clang++.exe: note: diagnostic msg:

---

Thanks.

Yanan

[rhornig]

Probably the same bug in the llvm/clang bugtracker: https://llvm.org/bugs/show_bug.cgi?id=26900#c1

[mati865]

Just tested with updated packages. No issue with -O0, -O1, -O2, -O3.

[gyn]

Hi Mati865,

Which clang do you use? mingw-w64-i686-clang or mingw-w64-i686-clang-svn. I tried again but still failed.

Thanks.

Yanan

[mati865]

$ pacman -Ss clang |grep "clang "
mingw32/mingw-w64-i686-clang 3.8.0-1 [installed]
mingw64/mingw-w64-x86_64-clang 3.8.0-1 [installed]

I also have full set of GCC tools.

[gyn]

Hi Mati865,

My PC runs Windows 7 x86. I redid as below:

1. un-tared msys2-base-i686-20160205.tar
2. run msys2_shell
3. run update-core and then close windows
4. run shell again, run "pacman -Su"
5. run pacman -S mingw32/mingw-w64-i686-clang
6. run pacman -S mingw-w64-i686-toolchain

But I still could see the crash.

Thanks.

Yanan

[mati865]

Ok got crash using this steps. Probably clang and it's libs need to be rebuild.
P.S.
64bit clang is fine

EDIT: Could be related https://llvm.org/bugs/show_bug.cgi?id=11549

[Alexpux]

Rebuilding clang not help

[mati865]

In Cygwin i686-w64-mingw32-clang++ 3.7.1 doesn't crash. Maybe someone experienced with Cygwin could check what they changed?

[ms178]

Is there a status update to this bug? I've tried to compile zlib-ng; Intel's threading building blocks and lua 5.1 today with the most recent package of mingw-w64-i686-clang (3.8.0-3) but without success. The 64-bit-Clang version compiles fine, though (with appropriately modified Makefiles), as does GCC. But I need explicitly the 32-bit-DLL's for performance comparison and compatibility reasons. Are there any chances to get this fixed soon?