[llvm-dev] TableGen crash when building LLVM with EXPENSIVE_CHECKS enabled

[Lau, Luke via llvm-dev]

Hello,
I'm trying to run checks with EXPENSIVE_CHECKS enabled, but it crashes when
generating some intrinsics file with TableGen. 

> cd /home/luke/Source/llvm-project/build && /home/luke/Source/llvm-
> project/build/bin/llvm-tblgen -gen-intrinsic-impl -I /home/luke/Source/llvm-
> project/llvm/include/llvm/IR -I /home/luke/Source/llvm-project/llvm/include
> /home/luke/Source/llvm-project/llvm/include/llvm/IR/Intrinsics.td -o
> include/llvm/IR/IntrinsicImpl.inc -d include/llvm/IR/IntrinsicImpl.inc.d
> /usr/bin/../lib/gcc/x86_64-linux-
> gnu/8/../../../../include/c++/8/debug/safe_container.h:83:
> Error: attempt to self move assign.
> 
> Objects involved in the operation:
>     sequence "this" @ 0x0x7fe3b3070468 {
>     }
> 

The command I've been using to configure it is

> cmake ../llvm -G Ninja \
> 	-DCMAKE_BUILD_TYPE=Debug \
> 	-DLLVM_ENABLE_LLD=On \
> 	-DLLVM_ENABLE_EXPENSIVE_CHECKS=On
> 

Removing the -DLLVM_ENABLE_EXPENSIVE_CHECKS=On allows it to build. Is there
something wrong with the version on libstdc++ on my system? (Debian testing)
This was happening on revision 5857bf5d1e5a5ffe5ae51a38514ee55495c0cc69
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