Bug 1244828 - Ensure enough ballast space in AllDoublePolicy::adjustInputs. r=bbouvier

js/src/jit/TypePolicy.cpp

@@ -106,6 +106,8 @@ AllDoublePolicy::adjustInputs(TempAllocator& alloc, MInstruction* ins)
         if (in->type() == MIRType_Double)
             continue;
 
+        if (!alloc.ensureBallast())
+            return false;
         MInstruction* replace = MToDouble::New(alloc, in);
 
         ins->block()->insertBefore(ins, replace);