This patch is an effort to simplify cascading jumps to return label in such case:

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
===================================================================
--- src/mips/full-codegen-mips.cc	(revision 11089)
+++ src/mips/full-codegen-mips.cc	(working copy)
@@ -2270,6 +2270,7 @@
 
 
 void FullCodeGenerator::VisitCall(Call* expr) {
+  ImmediateReturnDisabled disable(this);
 #ifdef DEBUG
   // We want to verify that RecordJSReturnSite gets called on all paths
   // through this function.  Avoid early returns.
@@ -2395,6 +2396,7 @@
 
 
 void FullCodeGenerator::VisitCallNew(CallNew* expr) {
+  ImmediateReturnDisabled disable(this);
   Comment cmnt(masm_, "[ CallNew");
   // According to ECMA-262, section 11.2.2, page 44, the function
   // expression in new calls must be evaluated before the
@@ -3799,6 +3801,7 @@
 
 
 void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
+  ImmediateReturnDisabled disable(this);
   Handle<String> name = expr->name();
   if (name->length() > 0 && name->Get(0) == '_') {
     Comment cmnt(masm_, "[ InlineRuntimeCall");