[llvm-dev] LLVM/CUDA generate LLVM IR

[Gurunath Kadam via llvm-dev]

So for a c program we do:

        clang -O3 -emit-llvm hello.c -c -o hello.bc

But how to generate an LLVM IR when working with CUDA.

for normal compilation:

         clang++ axpy.cu -o axpy --cuda-gpu-arch=<GPU arch> -L<CUDA install path>/<lib64 or lib> -lcudart_static -ldl -lrt -pthread

I tried adding -S -emit-llvm and changed the output file name, but I keep getting following error:

clang++: /stor/gakadam/llvm_projects/llvm/tools/clang/lib/Driver/Driver.cpp:1618: virtual {anonymous}::OffloadingActionBuilder::DeviceActionBuilder::ActionBuilderReturnCode {anonymous}::OffloadingActionBuilder::CudaActionBuilder::getDeviceDepences(clang::driver::OffloadAction::DeviceDependences&, clang::driver::phases::ID, clang::driver::phases::ID, {anonymous}::OffloadingActionBuilder::DeviceActionBuilder::PhasesTy&): Assertion `CurPhase < phases::Backend && "Generating single CUDA " "instructions should only occur " "before the backend phase!"' failed.

I tried several combinations but no avail!

Any suggestions?

Thank you.

Sincerely,

Guru

[Reid Kleckner via llvm-dev]

Moving to cfe-dev

+Art and Justin

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