[PATCH] D63277: [CUDA][HIP] Don't set "comdat" attribute for CUDA device stub functions.

[Konstantin Pyzhov via Phabricator via cfe-commits]

kpyzhov updated this revision to Diff 205655.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63277/new/

https://reviews.llvm.org/D63277

Files:
  clang/lib/CodeGen/CodeGenModule.cpp


Index: clang/lib/CodeGen/CodeGenModule.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenModule.cpp
+++ clang/lib/CodeGen/CodeGenModule.cpp
@@ -3706,6 +3706,11 @@
   if (!CGM.supportsCOMDAT())
     return false;
 
+  // Do not set COMDAT attribute for CUDA/HIP stub functions to prevent
+  // them being "merged" by the COMDAT Folding linker optimization.
+  if (D.hasAttr<CUDAGlobalAttr>())
+    return false;
+
   if (D.hasAttr<SelectAnyAttr>())
     return true;
 


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