1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
index 3e24f7875ac8..bb00442342d8 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
@@ -520,6 +520,12 @@ bool AMDGPUCallLowering::lowerFormalArgumentsKernel(
 
   // TODO: Align down to dword alignment and extract bits for extending loads.
   for (auto &Arg : F.args()) {
+    // TODO: Add support for kernarg preload.
+    if (Arg.hasAttribute("amdgpu-hidden-argument")) {
+      LLVM_DEBUG(dbgs() << "Preloading hidden arguments is not supported\n");
+      return false;
+    }
+
     const bool IsByRef = Arg.hasByRefAttr();
     Type *ArgTy = IsByRef ? Arg.getParamByRefType() : Arg.getType();
     unsigned AllocSize = DL.getTypeAllocSize(ArgTy);