diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp
--- a/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp
@@ -891,6 +891,7 @@
 
         IRB.CreateUnreachable();
         IRB.SetInsertPoint(Tail);
+        BB.replaceSuccessorsPhiUsesWith(&BB, Tail);
       }
 
       // Insert a branch based on __THREW__ variable
diff --git a/llvm/test/CodeGen/WebAssembly/lower-em-ehsjlj.ll b/llvm/test/CodeGen/WebAssembly/lower-em-ehsjlj.ll
--- a/llvm/test/CodeGen/WebAssembly/lower-em-ehsjlj.ll
+++ b/llvm/test/CodeGen/WebAssembly/lower-em-ehsjlj.ll
@@ -65,6 +65,10 @@
 ; CHECK-NEXT: %or = or i1 %cmp.eq.zero, %cmp.eq.one
 ; CHECK-NEXT: br i1 %or, label %tail, label %longjmp.rethrow
 
+; CHECK: try.cont:
+; CHECK-NEXT:  %phi = phi i32 [ undef, %tail ], [ undef, %lpad ]
+; CHECK-NEXT:  ret void
+
 ; CHECK:    tail:
 ; CHECK-NEXT: %cmp = icmp eq i32 %__THREW__.val, 1
 ; CHECK-NEXT: br i1 %cmp, label %lpad, label %try.cont
@@ -84,6 +88,7 @@
   br label %try.cont
 
 try.cont:                                         ; preds = %entry, %lpad
+ %phi = phi i32 [ undef, %entry ], [ undef, %lpad ]
   ret void
 }