[llvm-dev] Help: Windows: lli crashes on 32 arch but not on 64 arch

[Francis ANDRE via llvm-dev]

Hello LLVM list

I am running with lli,  a simple HelloWorld program twice, once targeted 
to 32 bits arch, the other targeted to 64 bit arch. While it is working 
fine with the 64 arch, it craches with the 32 arch. Below are the steps


clang.cmd -v -g -m64 -emit-llvm -S hw.c -o hw-m64.ll


clang.cmd -v -g -m32 -emit-llvm -S hw.c -o hw-m32.ll

    C:\Program Files (x86)\LLVM\11.0\bin"\clang -v -g -m32 -emit-llvm -S
    e.c -o e-m32.ll
    clang version 11.0.0
    Target: i686-pc-windows-msvc
    Thread model: posix
    InstalledDir: C:\Program Files (x86)\LLVM\11.0\bin
      (in-process)
      "C:\\Program Files (x86)\\LLVM\\11.0\\bin\\clang.exe" -cc1 -triple
    i686-pc-windows-msvc19.28.29335 -emit-llvm -disable-free
    -disable-llvm-verifier -discard-value-names -main-file-name e.c
    -mrelocation-model static -mframe-pointer=all -fmath-errno
    -fno-rounding-math -mconstructor-aliases -target-cpu pentium4
    -gno-column-info -gcodeview -debug-info-kind=limited -v
    -resource-dir "C:\\Program Files
    (x86)\\LLVM\\11.0\\lib\\clang\\11.0.0" -internal-isystem
    "C:\\Program Files (x86)\\LLVM\\11.0\\lib\\clang\\11.0.0\\include"
    -internal-isystem "C:\\Program Files (x86)\\Microsoft Visual
    Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.28.29333\\include"
    -internal-isystem "C:\\Program Files (x86)\\Microsoft Visual
    Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.28.29333\\atlmfc\\include"
    -internal-isystem "C:\\Program Files (x86)\\Windows
    Kits\\10\\Include\\10.0.18362.0\\ucrt" -internal-isystem
    "C:\\Program Files (x86)\\Windows
    Kits\\10\\include\\10.0.18362.0\\shared" -internal-isystem
    "C:\\Program Files (x86)\\Windows
    Kits\\10\\include\\10.0.18362.0\\um" -internal-isystem "C:\\Program
    Files (x86)\\Windows Kits\\10\\include\\10.0.18362.0\\winrt"
    -fdebug-compilation-dir "D:\\projects\\as400\\rpg\\clang"
    -ferror-limit 19 -fmessage-length=194 -fno-use-cxa-atexit
    -fms-extensions -fms-compatibility
    -fms-compatibility-version=19.28.29335 -fdelayed-template-parsing
    -fcolor-diagnostics -faddrsig -o e-m32.ll -x c e.c
    clang -cc1 version 11.0.0 based upon LLVM 11.0.0 default target
    i686-pc-windows-msvc
    #include "..." search starts here:
    #include <...> search starts here:
      C:\Program Files (x86)\LLVM\11.0\lib\clang\11.0.0\include
      C:\Program Files (x86)\Microsoft Visual
    Studio\2019\Community\VC\Tools\MSVC\14.28.29333\include
      C:\Program Files (x86)\Microsoft Visual
    Studio\2019\Community\VC\Tools\MSVC\14.28.29333\atlmfc\include
      C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\ucrt
      C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared
      C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um
      C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt
    End of search list.

lli hw-m64.ll

    Hello World!

lli hw-m32.ll

    PLEASE submit a bug report to https://bugs.llvm.org/ and include the
    crash backtrace.
    Stack dump:
    0.      Program arguments:
    D:\\llvm-project\\build32\\Debug\\bin\\lli hw-m32.ll
      #0 0x04b8eacc
      #1 0x03ff017b
      #2 0x03ff032b
      #3 0x0153ca18 llvm::MCJIT::runFunction(class llvm::Function *,
    class llvm::ArrayRef<struct llvm::GenericValue>)
    D:\llvm-project\llvm\lib\ExecutionEngine\MCJIT\MCJIT.cpp:587:0
      #4 0x01459673 llvm::ExecutionEngine::runFunctionAsMain(class
    llvm::Function *, class std::vector<class std::basic_string<char,
    struct std::char_traits<char>, class std::allocator<char>>, class
    std::allocator<class std::basic_string<char, struct
    std::char_traits<char>, class std::allocator<char>>>> const &, char
    const *const *)
    D:\llvm-project\llvm\lib\ExecutionEngine\ExecutionEngine.cpp:467:0
      #5 0x007e08c5 main D:\llvm-project\llvm\tools\lli\lli.cpp:643:0
      #6 0x02e12013 invoke_main
    d:\agent\_work\57\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:78:0
      #7 0x02e11e97 _scrt_common_main_seh
    d:\agent\_work\57\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288:0
      #8 0x02e11d2d _scrt_common_main
    d:\agent\_work\57\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:331:0
      #9 0x02e12098 mainCRTStartup
    d:\agent\_work\57\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp:17:0
    #10 0x75336359 (C:\WINDOWS\System32\KERNEL32.DLL+0x16359)
    #11 0x774c8944 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x68944)
    #12 0x774c8914 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x68914)

What is the best way to debug the 32 bit arch lli.exe under VS2019?


D:\projects\clang>type hw.c
#include <stdio.h>
int main() {
         printf("Hello World!\n");
         return 0;
}


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