I have some OpenACC code that compiles fine with -fast -Mconcur -Minfo=all -acc -ta=tesla:cuda7.0,cc35, adding -Mipa=fast causes an internal compiler error “Missing region ILI”. I’m using PGF90 version 15.10. Does anyone know what might cause this?
Most likely a LLVM code generation issue. Can you send a reproducing example to PGI Customer Service (email@example.com)?
Also, try adding “-ta=tesla:cuda7.0,cc35,nollvm” to see if generating CUDA C code instead of LLVM works around the error.