Track live instance and allocation counts for classes

runtime/vm/intermediate_language_mips.cc

Index: runtime/vm/intermediate_language_mips.cc
diff --git a/runtime/vm/intermediate_language_mips.cc b/runtime/vm/intermediate_language_mips.cc
index 30393d78fea56a307990c83f209d0e1b42ee2013..f4406df901c08877fe171402d19d6b225ee723bb 100644
--- a/runtime/vm/intermediate_language_mips.cc
+++ b/runtime/vm/intermediate_language_mips.cc
@@ -2651,12 +2651,13 @@ void CheckEitherNonSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
 LocationSummary* BoxDoubleInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 1;
-  const intptr_t kNumTemps = 0;
+  const intptr_t kNumTemps = 1;
   LocationSummary* summary =
       new LocationSummary(kNumInputs,
                           kNumTemps,
                           LocationSummary::kCallOnSlowPath);
   summary->set_in(0, Location::RequiresFpuRegister());
+  summary->set_temp(0, Location::RequiresRegister());
   summary->set_out(Location::RequiresRegister());
   return summary;
 }
@@ -2705,7 +2706,8 @@ void BoxDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
   __ TryAllocate(compiler->double_class(),
                  slow_path->entry_label(),
-                 out_reg);
+                 out_reg,
+                 locs()->temp(0).reg());
   __ Bind(slow_path->exit_label());
   __ StoreDToOffset(value, out_reg, Double::value_offset() - kHeapObjectTag);
 }