1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUPrintfRuntimeBinding.cpp b/llvm/lib/Target/AMDGPU/AMDGPUPrintfRuntimeBinding.cpp
index 5250bf455d71..511de96b5f7c 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUPrintfRuntimeBinding.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUPrintfRuntimeBinding.cpp
@@ -33,6 +33,7 @@
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Type.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
@@ -581,6 +582,15 @@ bool AMDGPUPrintfRuntimeBinding::runOnModule(Module &M) {
   if (Printfs.empty())
     return false;
 
+  if (auto HostcallFunction = M.getFunction("__ockl_hostcall_internal")) {
+    for (auto &U : HostcallFunction->uses()) {
+      if (auto *CI = dyn_cast<CallInst>(U.getUser())) {
+        M.getContext().emitError(
+            CI, "Cannot use both printf and hostcall in the same module");
+      }
+    }
+  }
+
   TD = &M.getDataLayout();
   auto DTWP = getAnalysisIfAvailable<DominatorTreeWrapperPass>();
   DT = DTWP ? &DTWP->getDomTree() : nullptr;