[PATCH] D42642: [CUDA] Detect installation in PATH

Mon Jan 29 13:30:55 PST 2018

Hahnfeld added a comment.

In https://reviews.llvm.org/D42642#990976, @tra wrote:

> Some linux distributions integrate CUDA into the standard directory structure. I.e. binaries go into /usr/bin, headers into /usr/include, bitcode goes somewhere else, etc. ptxas will be found, but we would still fail to detect CUDA. I'd add  one more test case to make sure that's still the case.

I'm not sure how this can work, we only require `bin/` and `include/` to exist, and `nvvm/libdevice/` if `-nocudalib` isn't specified. I agree this can be a problem because the defaults might detect an invalid installation...

In https://reviews.llvm.org/D42642#991013, @jlebar wrote:

> Can we document this behavior in https://llvm.org/docs/CompileCudaWithLLVM.html (in the LLVM repo)?  Totally fine if you want to do this in a separate patch.

Sure, will do!

Repository:
  rC Clang

https://reviews.llvm.org/D42642