[cfe-dev] Building latest llvm/clang targeting mingw-64/gcc-6.2 on Windows

[Edward Diener via cfe-dev]

On 12/23/2016 10:12 AM, Yaron Keren via cfe-dev wrote:
> You can buld X86 target only using  -DLLVM_TARGETS_TO_BUILD=X86

I did this but I am still seeing the same general problem with the build 
of clang with the 32 bit version of mingw-64/gcc-6.2:

[10/1057] Building X86GenSubtargetInfo.inc...
FAILED: lib/Target/X86/X86GenSubtargetInfo.inc.tmp
cmd.exe /C "cd /D 
C:\Programming\VersionControl\bninja_clang\lib\Target\X86 &&
C:\Programming\VersionControl\bninja_clang\bin\llvm-tblgen.exe 
-gen-subtarget
-I E:/Programming/VersionControl/llvm/lib/Target/X86
-I E:/Programming/VersionControl/llvm/include
-I E:/Programming/VersionControl/llvm/lib/Target
E:/Programming/VersionControl/llvm/lib/Target/X86/X86.td
-o 
C:/Programming/VersionControl/bninja_clang/lib/Target/X86/X86GenSubtargetInfo.inc.tmp"
Wrote crash dump file 
"C:\Users\eldiener\AppData\Local\Temp\llvm-tblgen.exe-c8ae4d.dmp"
0x004EFB0A (0x0166FA48 0x00000003 0x00363858 0x00000020)
0x03E7FED0 (0x77CEE172 0x769B0100 0x00000000 0x00000008) <unknown module>
0x77CEE40C (0x01A69A10 0x004F51D0 0x005F40CC 0x00000000), 
RtlInitUnicodeString() + 0x164 bytes(s)
0x005CD6B1 (0x0000000B 0x01A699D8 0x01A62B48 0x00000000)
0x004013E2 (0x7EFDE000 0x0166FFD4 0x77CF9902 0x7EFDE000)
0x768E336A (0x7EFDE000 0x73310E5D 0x00000000 0x00000000), 
BaseThreadInitThunk()> + 0x12 bytes(s)
0x77CF9902 (0x004014E0 0x7EFDE000 0x00000000 0x00000000), 
RtlInitializeExceptionChain() + 0x63 bytes(s)
0x77CF98D5 (0x004014E0 0x7EFDE000 0x00000000 0x3ED2DFE2), 
RtlInitializeExceptionChain() + 0x36 bytes(s)
[15/1057] Building CXX object 
lib/AsmP...les/LLVMAsmParser.dir/LLParser.cpp.obj
ninja: build stopped: subcommand failed.

Evidently this problem has nothing to do with 64 bit targets. But what 
it actually means I do not know other than that llvm-tblgen.exe is crashing.

>
>
> 2016-12-23 17:04 GMT+02:00 Edward Diener via cfe-dev
> <cfe-dev at lists.llvm.org
> <mailto:cfe-dev at lists.llvm.org>>:
>
>     I am building clang from source on Windows using CMake, Ninja, and
>     mingw-64/gcc-6.2. I am building in Release mode ( CMAKE_BUILD_TYPE =
>     Release ).
>
>     When I build with the x64 version of mingw-64/gcc-6.2 with a triple
>     of x86_64-w64-mingw32 ( LLVM_DEFAULT_TARGET_TRIPLE =
>     x86_64-w64-mingw32 ),
>     everything builds fine and I can produce clang that works properly
>     with a 64-bit compilation using the 64-bit version of mingw-64/gcc-6.2.
>
>     When I build with the x32 version of mingw-64/gcc-6.2 with a triple
>     of i686-pc-mingw32  ( LLVM_DEFAULT_TARGET_TRIPLE = i686-pc-mingw32 ),
>     the build fails with:
>
>     [8/1856] Building AArch64GenSubtargetInfo.inc...
>     FAILED: lib/Target/AArch64/AArch64GenSubtargetInfo.inc.tmp
>     cmd.exe /C "cd /D
>     C:\Programming\VersionControl\bninja_clang\lib\Target\AArch64
>     && C:\Programming\VersionControl\bninja_clang\bin\llvm-tblgen.exe
>     -gen-subtarget
>     -I E:/Programming/VersionControl/llvm/lib/Target/AArch64 -I
>     E:/Programming/VersionControl/llvm/include
>     -I E:/Programming/VersionControl/llvm/lib/Target
>     E:/Programming/VersionControl/llvm/lib/Target/AArch64/AArch64.td
>     <http://4.td>
>     -o
>     C:/Programming/VersionControl/bninja_clang/lib/Target/AArch64/AArch64GenSubtargetInfo.inc.tmp"
>     Wrote crash dump file
>     "C:\Users\eldiener\AppData\Local\Temp\llvm-tblgen.exe-0c060b.dmp"
>     0x004EFB0A (0x0166FA48 0x00000007 0x63724141 0x00343668)
>     0x03172858 (0x77CEE172 0x769B0100 0x00000000 0x00000008) <unknown
>     module>
>     0x77CEE40C (0x001F9A18 0x004F51D0 0x005F40CC 0x00000000),
>     RtlInitUnicodeString() + 0x164 bytes(s)
>     0x005CD6B1 (0x0000000B 0x001F99E0 0x001F2B50 0x00000000)
>     0x004013E2 (0x7EFDE000 0x0166FFD4 0x77CF9902 0x7EFDE000)
>     0x768E336A (0x7EFDE000 0x73B4F3DA 0x00000000 0x00000000),
>     BaseThreadInitThunk()+ 0x12 bytes(s)
>     0x77CF9902 (0x004014E0 0x7EFDE000 0x00000000 0x00000000),
>     RtlInitializeExceptionChain() + 0x63 bytes(s)
>     0x77CF98D5 (0x004014E0 0x7EFDE000 0x00000000 0x00000000),
>     RtlInitializeExceptionChain() + 0x36 bytes(s)
>     [9/1856] Building AMDGPUGenMCPseudoLowering.inc...
>     ninja: build stopped: subcommand failed.
>
>     I notice that AArch64 is listed as a target type even when building
>     with a 32-bit compiler and am guessing that this is what is causing
>     the build to fail.
>
>     Is this an LLVM problem or a clang problem ?
>
>     How can I get someone to correct this in the CMake files in the
>     LLVM/clang project ?
>
>     Is there some way I myself can tell CMake to not build for the
>     AArch64 target ?