[turbofan] Run everything after representation selection concurrently.

src/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 2643 matching lines @@
             RelocInfo::CODE_TARGET);
   }
 
   // Called Construct on an Object that doesn't have a [[Construct]] internal
   // method.
   __ bind(&non_constructor);
   __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(),
           RelocInfo::CODE_TARGET);
 }
 
+// static
+void Builtins::Generate_AllocateInNewSpace(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- r1 : requested object size (tagged)
+  //  -- cp : context
+  // -----------------------------------
+  __ AssertSmi(r1);
+
+  Label runtime;
+  __ SmiUntag(r1);
+  __ Allocate(r1, r0, r2, r3, &runtime, NO_ALLOCATION_FLAGS);
+  __ Ret();
+
+  __ bind(&runtime);
+  __ SmiTag(r1);
+  __ Push(r1);
+  __ TailCallRuntime(Runtime::kAllocateInNewSpace);
+}
+
+// static
+void Builtins::Generate_AllocateInOldSpace(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- r1 : requested object size (tagged)
+  //  -- cp : context
+  // -----------------------------------
+  __ AssertSmi(r1);
+
+  Label runtime;
+  __ SmiUntag(r1);
+  __ Allocate(r1, r0, r2, r3, &runtime, PRETENURE);
+  __ Ret();
+
+  __ bind(&runtime);
+  __ SmiTag(r1);
+  __ Push(r1);
+  __ Push(Smi::FromInt(AllocateTargetSpace::encode(OLD_SPACE)));
+  __ TailCallRuntime(Runtime::kAllocateInTargetSpace);
+}
 
 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r0 : actual number of arguments
   //  -- r1 : function (passed through to callee)
   //  -- r2 : expected number of arguments
   //  -- r3 : new target (passed through to callee)
   // -----------------------------------
 
   Label invoke, dont_adapt_arguments, stack_overflow;
@@ skipping 112 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM