ARM: Replace branch with conditional store in function prologue.

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index 079bccba3112a5f32c9e624ef2d59461e497cce4..c57c78559803c81e51137a32876688dff0ceebc0 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -148,13 +148,10 @@ void FullCodeGenerator::Generate() {
   // receiver object). r5 is zero for method calls and non-zero for
   // function calls.
   if (!info->is_classic_mode() || info->is_native()) {
-    Label ok;
     __ cmp(r5, Operand::Zero());
-    __ b(eq, &ok);
     int receiver_offset = info->scope()->num_parameters() * kPointerSize;
     __ LoadRoot(r2, Heap::kUndefinedValueRootIndex);
-    __ str(r2, MemOperand(sp, receiver_offset));
-    __ bind(&ok);
+    __ str(r2, MemOperand(sp, receiver_offset), ne);
   }
 
   // Open a frame scope to indicate that there is a frame on the stack.  The