================
@@ -307,6 +307,14 @@ void CodeGenModule::handleCUDALaunchBoundsAttr(
NVPTXTargetCodeGenInfo::addNVVMMetadata(F, "minctasm",
MinBlocks.getExtValue());
}
+ if (Attr->getMaxBlocks()) {
+ llvm::APSInt MaxBlocks(32);
+ MaxBlocks = Attr->getMaxBlocks()->EvaluateKnownConstInt(getContext());
+ if (MaxBlocks > 0)
+ // Create !{<func-ref>, metadata !"maxclusterrank", i32 <val>} node
+ NVPTXTargetCodeGenInfo::addNVVMMetadata(F, "maxclusterrank",
----------------
jchlanda wrote:
That's a good question, so `makeLaunchBoundsArgEspr` does perform a [check for
negative
values](https://github.com/jchlanda/llvm-project/blob/jakub/launch_bounds_maxclusterrank/clang/lib/Sema/SemaDeclAttr.cpp#L5653),
but lets the value pass (unlike for the case of values > 32 bits, when it
returns `nullptr`), I didn't want to change it, so catch the negative case here.
https://github.com/llvm/llvm-project/pull/66496
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