[llvm-bugs] [Bug 33350] New: Building with mingw-w64 crashes llvm-tblgen.exe

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33350

            Bug ID: 33350
           Summary: Building with mingw-w64 crashes llvm-tblgen.exe
           Product: clang
           Version: 4.0
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: mitchell at groundctl.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 18589
  --> https://bugs.llvm.org/attachment.cgi?id=18589&action=edit
llvm-tblgen dump

CMake is configured with

 "C:\Program Files (x86)\CMake\bin\cmake.exe" -G "MinGW Makefiles" -Wdev
-DCMAKE_BUILD_TYPE=Release -DLLVM_BUILD_TOOLS=OFF -DLLVM_INCLUDE_TOOLS=ON
-DLLVM_BUILD_EXAMPLES=OFF -DLLVM_INCLUDE_EXAMPLES=OFF -DLLVM_BUILD_TESTS=OFF
-DLLVM_INCLUDE_TESTS=OFF -DLLVM_TARGETS_TO_BUILD=X86
-DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_TARGET_ARCH=i686-pc-mingw32 ../llvm

Resulting build crashes

[22:27:47][Step 2/3] 0x004F311A (0x0167FA48 0x00000003 0x00363858 0x00000020)
[22:27:47][Step 2/3] 0x050DFE78 (0x77C0E172 0x76D90100 0x00000000 0x00168B90)
<unknown module>
[22:27:47][Step 2/3] 0x77C0E40C (0x01AE19A8 0x004F87E0 0x00603954 0x00000000),
RtlInitUnicodeString() + 0x164 bytes(s)
[22:27:47][Step 2/3] 0x005DAAB1 (0x0000000B 0x01AE7FB0 0x01AE1D88 0x00000000)
[22:27:47][Step 2/3] 0x004013E2 (0x7EFDE000 0x0167FFD4 0x77C19902 0x7EFDE000)
[22:27:47][Step 2/3] 0x76CC336A (0x7EFDE000 0x1538F980 0x00000000 0x00000000),
BaseThreadInitThunk() + 0x12 bytes(s)
[22:27:47][Step 2/3] 0x77C19902 (0x004014E0 0x7EFDE000 0x00000000 0x00000000),
RtlInitializeExceptionChain() + 0x63 bytes(s)
[22:27:47][Step 2/3] 0x77C198D5 (0x004014E0 0x7EFDE000 0x00000000 0x00000000),
RtlInitializeExceptionChain() + 0x36 bytes(s)
[22:27:47][Step 2/3] mingw32-make.exe[3]: ***
[lib/Target/X86/X86GenSubtargetInfo.inc.tmp] Error -1073741819

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