Adapt Danno's Track Allocation Info idea to fast literals. When allocating a literal array,

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index 3f1791c394efd50fcf7a15b56215182d9b8ae3ac..a6c6a1a1737692210eb1f6c9829a6dbfae119b77 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -179,6 +179,10 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   Label loop, entry, convert_hole, gc_required, only_change_map, done;
   bool vfp2_supported = CpuFeatures::IsSupported(VFP2);
 
+  if (FLAG_use_allocation_site_info) {
+    masm->PerformAllocationSiteInfoCheck(fail);
+  }
+
   // Check for empty arrays, which only require a map transition and no changes
   // to the backing store.
   __ ldr(r4, FieldMemOperand(r2, JSObject::kElementsOffset));
@@ -315,6 +319,11 @@ void ElementsTransitionGenerator::GenerateDoubleToObject(
   // -----------------------------------
   Label entry, loop, convert_hole, gc_required, only_change_map;
 
+  // TODO(mvstanton): don't pretransition double to object
+  // if (FLAG_use_allocation_site_info) {
+  //   masm->PerformAllocationSiteInfoCheck(fail);
+  // }
+
   // Check for empty arrays, which only require a map transition and no changes
   // to the backing store.
   __ ldr(r4, FieldMemOperand(r2, JSObject::kElementsOffset));