mirrors/cmake
2
0
Fork 0
mirror of https://gitlab.kitware.com/cmake/cmake.git synced 2026-09-25 04:09:36 +03:00
Code Activity

Clang/CUDA: Warn when using offloading driver with RDC + PTX

Browse Source 
Fixes: #28084
This commit is contained in:
Robert Maynard
2026-09-15 11:01:04 -04:00
committed by Brad King
parent 8b8d185b42
commit 616f65b379
2 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Source/cmGeneratorTarget.cxx
+9 -2
View File
@@ -2842,6 +2842,8 @@ void cmGeneratorTarget::AddCUDAArchitectureFlagsImpl(cmBuildStep compileOrLink,
this->Makefile->GetDefinition(cmStrCat(
"CMAKE_", lang, "_COMPILER_VERSION")),
"20.0")) {
bool const separableCompilation =
cmIsOn(this->GetSafeProperty("CUDA_SEPARABLE_COMPILATION"));
for (CudaArchitecture& architecture : architectures) {
flags =
cmStrCat(std::move(flags), " --offload-arch=sm_", architecture.name);
@@ -2851,8 +2853,13 @@ void cmGeneratorTarget::AddCUDAArchitectureFlagsImpl(cmBuildStep compileOrLink,
MessageType::WARNING,
"Clang doesn't support disabling CUDA real code generation.");
}
if (architecture.virtual_) {
if (architecture.virtual_ && separableCompilation &&
!this->Makefile->GetCMakeInstance()->GetIsInTryCompile()) {
this->Makefile->IssueMessage(
MessageType::WARNING,
"Clang 20+ CUDA offloading model doesn't support virtual archs "
"when CUDA_SEPARABLE_COMPILATION is enabled.");
} else if (architecture.virtual_) {
flags = cmStrCat(std::move(flags), " --cuda-include-ptx=sm_",
architecture.name);
}
Tests/RunCMake/NinjaMultiConfig/CudaSimple-stderr.txt
+4
View File
@@ -0,0 +1,4 @@
^(CMake Warning in CMakeLists.txt:
Clang 20\+ CUDA offloading model doesn't support virtual archs when
CUDA_SEPARABLE_COMPILATION is enabled.
*)*$