[builtins] CompileLazy bailed out to the runtime entirely too often.

src/builtins/arm/builtins-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1336 matching lines @@
 
   __ push(argument_count);
   __ push(new_target);
   __ push(closure);
 
   __ ldr(map, FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   __ ldr(map,
          FieldMemOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset));
   __ ldr(index, FieldMemOperand(map, FixedArray::kLengthOffset));
   __ cmp(index, Operand(Smi::FromInt(2)));
-  __ b(lt, &gotta_call_runtime);
+  __ b(lt, &try_shared);
 
   // r3  : native context
   // r2  : length / index
   // r0  : optimized code map
   // stack[0] : new target
   // stack[4] : closure
   Register native_context = r3;
   __ ldr(native_context, NativeContextMemOperand());
 
   __ bind(&loop_top);
@@ skipping 44 matching lines @@
   __ mov(closure, r5);
   __ pop(new_target);
   __ pop(argument_count);
   __ Jump(entry);
 
   __ bind(&loop_bottom);
   __ sub(index, index, Operand(Smi::FromInt(SharedFunctionInfo::kEntryLength)));
   __ cmp(index, Operand(Smi::FromInt(1)));
   __ b(gt, &loop_top);
 
-  // We found no code.
-  __ jmp(&gotta_call_runtime);
-
+  // We found no code. Try the SharedFunctionInfo.
   __ bind(&try_shared);
   __ pop(closure);
   __ pop(new_target);
   __ pop(argument_count);
   __ ldr(entry,
          FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   // Is the shared function marked for tier up?
   __ ldrb(r5, FieldMemOperand(entry,
                               SharedFunctionInfo::kMarkedForTierUpByteOffset));
   __ tst(r5, Operand(1 << SharedFunctionInfo::kMarkedForTierUpBitWithinByte));
@@ skipping 1443 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM