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VS: Fix CUDA CodeGeneration field for CMAKE_CUDA_ARCHITECTURES=OFF

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If we add no CUDA architecture flags, write an empty `CodeGeneration`
field to tell the CUDA Toolkit's VS integration not to add its default
flags.  We already use this approach for `CMAKE_CUDA_ARCHITECTURES=all`
so that the `-arch=all` flag can be added via `AdditionalOptions`.

Fixes: #23490
This commit is contained in:
Brad King
2022-05-13 11:33:58 -04:00
parent 2019bf5092
commit 9fe41ecf36
1 changed files with 5 additions and 4 deletions
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9
Source/cmVisualStudioGeneratorOptions.cxx
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@@ -171,14 +171,15 @@ void cmVisualStudioGeneratorOptions::FixCudaCodeGeneration()
code.clear();
}
if (arch.empty() && gencode.empty()) {
return;
}
// Create a CodeGeneration field with [arch],[code] syntax in each entry.
// CUDA will convert it to `-gencode=arch=[arch],code="[code],[arch]"`.
FlagValue& result = this->FlagMap["CodeGeneration"];
// If there are no flags, leave the CodeGeneration field empty.
if (arch.empty() && gencode.empty()) {
return;
}
// First entries for the -arch=<arch> [-code=<code>,...] pair.
if (!arch.empty()) {
std::string arch_name = arch[0];