Allow more virtual registers to be encoded in LUnallocated.

src/compiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 281 matching lines @@
     return AbortOptimization();
   }
 
   // Due to an encoding limit on LUnallocated operands in the Lithium
   // language, we cannot optimize functions with too many formal parameters
   // or perform on-stack replacement for function with too many
   // stack-allocated local variables.
   //
   // The encoding is as a signed value, with parameters and receiver using
   // the negative indices and locals the non-negative ones.
-  const int parameter_limit = -LUnallocated::kMinFixedIndex;
+  const int parameter_limit = -LUnallocated::kMinFixedSlotIndex;
   Scope* scope = info()->scope();
   if ((scope->num_parameters() + 1) > parameter_limit) {
     info()->set_bailout_reason("too many parameters");
     return AbortOptimization();
   }
 
-  const int locals_limit = LUnallocated::kMaxFixedIndex;
+  const int locals_limit = LUnallocated::kMaxFixedSlotIndex;
   if (!info()->osr_ast_id().IsNone() &&
       scope->num_parameters() + 1 + scope->num_stack_slots() > locals_limit) {
     info()->set_bailout_reason("too many parameters/locals");
     return AbortOptimization();
   }
 
   // Take --hydrogen-filter into account.
   Handle<String> name = info()->function()->debug_name();
   if (*FLAG_hydrogen_filter != '\0') {
     Vector<const char> filter = CStrVector(FLAG_hydrogen_filter);
@@ skipping 847 matching lines @@
     }
   }
 
   GDBJIT(AddCode(Handle<String>(shared->DebugName()),
                  Handle<Script>(info->script()),
                  Handle<Code>(info->code()),
                  info));
 }
 
 } }  // namespace v8::internal