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[CUDA] Raise an error if the CUDA install can't be found. 

Summary:
Without this change, we silently proceed on without including
__clang_cuda_runtime_wrapper.h.  This leads to very strange behavior --
you say you're compiling CUDA code, but e.g. __device__ is not defined!

Reviewers: tra

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19180

llvm-svn: 266496
This commit is contained in:
Justin Lebar 2016-04-16 00:11:11 +00:00
parent 4d247e7012
commit 423019d059
2 changed files with 10 additions and 4 deletions
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3
clang/include/clang/Basic/DiagnosticDriverKinds.td
View File

@ -23,6 +23,9 @@ def err_drv_unknown_language : Error<"language not recognized: '%0'">;
def err_drv_invalid_arch_name : Error<
"invalid arch name '%0'">;
def err_drv_cuda_bad_gpu_arch : Error<"Unsupported CUDA gpu architecture: %0">;
def err_drv_no_cuda_installation : Error<
"cannot find CUDA installation. Provide its path via --cuda-path, or pass "
"-nocudainc to build without CUDA includes.">;
def err_drv_invalid_thread_model_for_target : Error<
"invalid thread model '%0' in '%1' for this target">;
def err_drv_invalid_linker_name : Error<

7
clang/lib/Driver/ToolChains.cpp
View File

@ -4118,12 +4118,15 @@ void Linux::AddCudaIncludeArgs(const ArgList &DriverArgs,
if (DriverArgs.hasArg(options::OPT_nocudainc))
return;
if (CudaInstallation.isValid()) {
if (!CudaInstallation.isValid()) {
getDriver().Diag(diag::err_drv_no_cuda_installation);
return;
}
addSystemInclude(DriverArgs, CC1Args, CudaInstallation.getIncludePath());
CC1Args.push_back("-include");
CC1Args.push_back("__clang_cuda_runtime_wrapper.h");
}
}
bool Linux::isPIEDefault() const { return getSanitizerArgs().requiresPIE(); }