Recognize Bigint setters and getters. This code will be removed when/if we change the fields to be …

runtime/vm/flow_graph_optimizer.cc

Index: runtime/vm/flow_graph_optimizer.cc
===================================================================
--- runtime/vm/flow_graph_optimizer.cc	(revision 40205)
+++ runtime/vm/flow_graph_optimizer.cc	(working copy)
@@ -2962,12 +2962,63 @@
         GrowableObjectArray::length_offset(),
         new(I) Value(array),
         new(I) Value(value),
+        kNoStoreBarrier,
+        call->token_pos());
+    ReplaceCall(call, store);
+    return true;
+  }
+
+  if ((recognized_kind == MethodRecognizer::kBigint_setUsed) &&
+      (ic_data.NumberOfChecks() == 1) &&
+      (class_ids[0] == kBigintCid)) {
+    // This is an internal method, no need to check argument types nor
+    // range.
+    Definition* bigint = call->ArgumentAt(0);
+    Definition* value = call->ArgumentAt(1);
+    StoreInstanceFieldInstr* store = new(I) StoreInstanceFieldInstr(
+        Bigint::used_offset(),
+        new(I) Value(bigint),
+        new(I) Value(value),
+        kNoStoreBarrier,
+        call->token_pos());
+    ReplaceCall(call, store);
+    return true;
+  }
+
+  if ((recognized_kind == MethodRecognizer::kBigint_setDigits) &&
+      (ic_data.NumberOfChecks() == 1) &&
+      (class_ids[0] == kBigintCid)) {
+    // This is an internal method, no need to check argument types nor
+    // range.
+    Definition* bigint = call->ArgumentAt(0);
+    Definition* value = call->ArgumentAt(1);
+    StoreInstanceFieldInstr* store = new(I) StoreInstanceFieldInstr(
+        Bigint::digits_offset(),
+        new(I) Value(bigint),
+        new(I) Value(value),
         kEmitStoreBarrier,
         call->token_pos());
     ReplaceCall(call, store);
     return true;
   }
 
+  if ((recognized_kind == MethodRecognizer::kBigint_setNeg) &&
+      (ic_data.NumberOfChecks() == 1) &&
+      (class_ids[0] == kBigintCid)) {
+    // This is an internal method, no need to check argument types nor
+    // range.
+    Definition* bigint = call->ArgumentAt(0);
+    Definition* value = call->ArgumentAt(1);
+    StoreInstanceFieldInstr* store = new(I) StoreInstanceFieldInstr(
+        Bigint::neg_offset(),
+        new(I) Value(bigint),
+        new(I) Value(value),
+        kEmitStoreBarrier,
+        call->token_pos());
+    ReplaceCall(call, store);
+    return true;
+  }
+
   if (((recognized_kind == MethodRecognizer::kStringBaseCodeUnitAt) ||
        (recognized_kind == MethodRecognizer::kStringBaseCharAt)) &&
       (ic_data.NumberOfChecks() == 1) &&