undefined reference to `cir::DominatingValue<cir::RValue>::saved_type::restore(cir::CIRGenFunction&)' about clangir HOT 4 CLOSED

Sorry I was not very clear about how to reproduce. Here is the easiest way to reproduce the error with docker using the latest gcc image:

$ docker run -it gcc:latest bash
// the commands below run inside the container
$ git clone https://github.com/llvm/clangir/ --depth 1
$ apt update && apt install cmake ninja-build -y
$ cd clangir
$ mkdir build
$ cmake ../llvm -GNinja -DLLVM_TARGETS_TO_BUILD="host" -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_ENABLE_PROJECTS="clang;mlir;cir" -DCMAKE_BUILD_TYPE=Debug
$ ninja clang

I have tried it on different Linux machines (I doubt it matters but just in case), and they all have the same linker error. Note that if I use Release mode, the code compiles fine.

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Hi @Kuree, thanks for reporting this, I think I know what's happening here, should have a fix later today.

from clangir.

Do you have more info? I think undefined reference would be a linker error so doesn't seem related to the compiler. I just did clean builds on both Darwin and Linux and both passed check-clang-cir.

Maybe try a clean build? We've had issues with stale td generated files over time, could just be another instance of that .

from clangir.

Should be fixed in [CIR][NFC] Fix linking problems saved_type::restore

Please re-open if it doesn't work.

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