[WebAssembly] Omit no-op adds for non-mem uses of FrameIndex

Differential Revision: http://reviews.llvm.org/D16554

llvm-svn: 258872
diff --git a/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll b/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll
index bb7e8dd..669f6ec 100644
--- a/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll
+++ b/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll
@@ -59,13 +59,18 @@
   ret void
 }
 
+
 ; CHECK-LABEL: frame_index:
 ; CHECK: i32.call $discard=, memset@FUNCTION, $3, $pop1, $pop0{{$}}
+; CHECK: i32.call $discard=, memset@FUNCTION, $4, $pop3, $pop2{{$}}
 ; CHECK: return{{$}}
 define void @frame_index() {
 entry:
   %a = alloca [2048 x i8], align 16
+  %b = alloca [2048 x i8], align 16
   %0 = getelementptr inbounds [2048 x i8], [2048 x i8]* %a, i32 0, i32 0
+  %1 = getelementptr inbounds [2048 x i8], [2048 x i8]* %b, i32 0, i32 0
   call void @llvm.memset.p0i8.i32(i8* %0, i8 256, i32 1024, i32 16, i1 false)
+  call void @llvm.memset.p0i8.i32(i8* %1, i8 256, i32 1024, i32 16, i1 false)
   ret void
 }