diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
index a3cbcbb..a5a31ab 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
@@ -85,6 +85,7 @@
 }
 
 void WebAssemblyAsmPrinter::EmitInstruction(const MachineInstr *MI) {
+  DEBUG(dbgs() << "EmitInstruction: " << *MI << '\n');
   SmallString<128> Str;
   raw_svector_ostream OS(Str);