Fix MIPS switch statement breakage.

BUG=

Review URL: https://codereview.chromium.org/116073004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18351 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/full-codegen-mips.cc

@@ -1039,6 +1039,15 @@ void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
     CallIC(ic, RelocInfo::CODE_TARGET, clause->CompareId());
     patch_site.EmitPatchInfo();
 
+    Label skip;
+    __ b(&skip);
+    PrepareForBailout(clause, TOS_REG);
+    __ LoadRoot(at, Heap::kTrueValueRootIndex);
+    __ Branch(&next_test, ne, v0, Operand(at));
+    __ Drop(1);
+    __ jmp(clause->body_target());
+    __ bind(&skip);
+
     __ Branch(&next_test, ne, v0, Operand(zero_reg));
     __ Drop(1);  // Switch value is no longer needed.
     __ Branch(clause->body_target());