[LLVMdev] Crash using the JIT on x86 but work on x64

[Skykill Skyoverside]

Hi, so yes assertions are enabled by default in Debug from what i could see 
in the CMakeLists.txt

if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" OFF)
else()
  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON)
endif()

Without assertions enabled, when i'm running the program without the 
debugger, it simply freeze until i close it, but not crash at all.

Here is the call stack for the x86 Debug build without assertions enabled:

     ntdll.dll!778515de()
     [Les frames ci-dessous sont peut-être incorrects et/ou manquants, aucun 
symbole chargé pour ntdll.dll]
     ntdll.dll!778515de()
     ntdll.dll!7784014e()
>    msvcp100d.dll!std::_Lockit::_Lockit(int kind)  Ligne 64 + 0x14 octets 
> C++
     msvcp100d.dll!std::_Container_base12::_Orphan_all()  Ligne 200    C++
     LLVM_Test_Console.exe!std::_String_val<char,std::allocator<char> 
 >::~_String_val<char,std::allocator<char> >()  Ligne 478 + 0xb octets    C++
     LLVM_Test_Console.exe!std::basic_string<char,std::char_traits<char>,std::allocator<char> 
 >::~basic_string<char,std::char_traits<char>,std::allocator<char> >()  Ligne 
754 + 0xf octets    C++
     LLVM_Test_Console.exe!TestClass1::test2(std::basic_string<char,std::char_traits<char>,std::allocator<char> 
 > s)  Ligne 172 + 0xf octets    C++
     01180091()
     LLVM_Test_Console.exe!llvm::JIT::runFunction(llvm::Function * F, const 
std::vector<llvm::GenericValue,std::allocator<llvm::GenericValue> > & 
ArgValues)  Ligne 455 + 0x7 octets    C++
     LLVM_Test_Console.exe!main(int argc, char * * argv, char * const * 
envp)  Ligne 254 + 0x43 octets    C++
     LLVM_Test_Console.exe!__tmainCRTStartup()  Ligne 555 + 0x19 octets    C
     LLVM_Test_Console.exe!mainCRTStartup()  Ligne 371    C
     kernel32.dll!76dd339a()
     ntdll.dll!77869ef2()
     ntdll.dll!77869ec5()

Thank you.

-----Message d'origine----- 
From: Duncan Sands
Sent: Saturday, July 07, 2012 9:22 AM
To: llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] Crash using the JIT on x86 but work on x64

Hi Skykill,

> Hello everyone, i’m using LLVM (updated to 3.1 after seeing that bug, but 
> it’s
> the same with 3.0) for running a bitcode on a C++ program, and Clang for
> compiling it. My code work perfectly, as expected on x64, but crash on 
> x86. I’m
> on Windows 7 x64 and LLVM + Clang was compiled using Visual Studio 2010 
> (tested
> in both Release and Debug build). Project was make using CMake.

did you build LLVM with assertions enabled?  -DLLVM_ENABLE_ASSERTIONS=true. 
(I
don't recall if cmake Debug build enables assertions by default).

Ciao, Duncan.
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