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 ab171e9d2473cbd2abde9c9045235a7133683b4a..85310d38421a9e8070e0f2b38b67263382dad80c 100644
--- a/runtime/vm/intermediate_language_mips.cc
+++ b/runtime/vm/intermediate_language_mips.cc
@@ -1741,7 +1741,8 @@ void StoreInstanceFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
       compiler->AddSlowPathCode(slow_path);
       __ TryAllocate(compiler->double_class(),
                      slow_path->entry_label(),
-                     temp);
+                     temp,
+                     temp2);
       __ Bind(slow_path->exit_label());
       __ mov(temp2, temp);
       __ StoreIntoObject(instance_reg,
@@ -1785,7 +1786,8 @@ void StoreInstanceFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
     __ TryAllocate(compiler->double_class(),
                    slow_path->entry_label(),
-                   temp);
+                   temp,
+                   temp2);
     __ Bind(slow_path->exit_label());
     __ mov(temp2, temp);
     __ StoreIntoObject(instance_reg,
@@ -2039,7 +2041,8 @@ void LoadFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
     __ TryAllocate(compiler->double_class(),
                    slow_path->entry_label(),
-                   result_reg);
+                   result_reg,
+                   temp);
     __ Bind(slow_path->exit_label());
     __ lw(temp, FieldAddress(instance_reg, offset_in_bytes()));
     __ LoadDFromOffset(value, temp, Double::value_offset() - kHeapObjectTag);
@@ -2897,12 +2900,13 @@ void CheckEitherNonSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
 LocationSummary* BoxDoubleInstr::MakeLocationSummary(bool opt) 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;
 }
@@ -2917,7 +2921,8 @@ 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);
 }