[llvm] [IPO] Do not merge kernel functions (PR #174254)

[Nikita Popov via llvm-commits]

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@@ -697,6 +697,11 @@ static bool canCreateThunkFor(Function *F) {
   if (F->isVarArg())
     return false;
 
+  if (F->getCallingConv() == CallingConv::SPIR_KERNEL ||
+      F->getCallingConv() == CallingConv::AMDGPU_KERNEL ||
+      F->getCallingConv() == CallingConv::PTX_Kernel)
+    return false;
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nikic wrote:

hasKernelCallingConv()

https://github.com/llvm/llvm-project/pull/174254