[PATCH] D44747: Set calling convention for CUDA kernel

[Artem Belevich via Phabricator via llvm-commits]

tra added inline comments.


================
Comment at: lib/Sema/SemaType.cpp:3319-3330
+  // Attribute AT_CUDAGlobal affects the calling convention for AMDGPU targets.
+  // This is the simplest place to infer calling convention for CUDA kernels.
+  if (S.getLangOpts().CUDA && S.getLangOpts().CUDAIsDevice) {
+    for (const AttributeList *Attr = D.getDeclSpec().getAttributes().getList();
+         Attr; Attr = Attr->getNext()) {
+      if (Attr->getKind() == AttributeList::AT_CUDAGlobal) {
+        CC = CC_CUDAKernel;
----------------
This apparently breaks compilation of some CUDA code in our internal tests. I'm working on minimizing a reproduction case. Should this code be enabled for AMD GPUs only?


Repository:
  rL LLVM

https://reviews.llvm.org/D44747