[turbofan] Remove obsolete Linkage::GetAllocateCallDescriptor.

R=ishell@chromium.org

Change-Id: I84288cc16297dbe33adddbdf08b689db95d0fc04
Reviewed-on: https://chromium-review.googlesource.com/1104164Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53786}

src/compiler/linkage.cc

@@ -410,21 +410,6 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
       descriptor.DebugName(isolate), descriptor.allocatable_registers());
 }
 
-// TODO(ishell): remove this once CallInterfaceDescriptors support
-// Linkage::kNoContext and Operator::kNoThrow flags.
-// static
-CallDescriptor* Linkage::GetAllocateCallDescriptor(Isolate* isolate,
-                                                   Zone* zone) {
-  return GetStubCallDescriptor(isolate, zone,
-                               AllocateDescriptor(isolate),  // descriptor
-                               0,  // stack_parameter_count
-                               CallDescriptor::kCanUseRoots,  // flags
-                               Operator::kNoThrow,            // properties
-                               MachineType::AnyTagged(),      // return_type
-                               1,                             // return_count
-                               Linkage::kNoContext);          // context_spec
-}
-
 // static
 CallDescriptor* Linkage::GetBytecodeDispatchCallDescriptor(
     Isolate* isolate, Zone* zone, const CallInterfaceDescriptor& descriptor,

src/compiler/linkage.h

@@ -397,8 +397,6 @@ class V8_EXPORT_PRIVATE Linkage : public NON_EXPORTED_BASE(ZoneObject) {
       size_t return_count = 1, ContextSpecification context_spec = kPassContext,
       StubCallMode stub_mode = StubCallMode::kCallOnHeapBuiltin);
 
-  static CallDescriptor* GetAllocateCallDescriptor(Isolate* isolate,
-                                                   Zone* zone);
   static CallDescriptor* GetBytecodeDispatchCallDescriptor(
       Isolate* isolate, Zone* zone, const CallInterfaceDescriptor& descriptor,
       int stack_parameter_count);

src/compiler/memory-optimizer.cc

@@ -236,8 +236,10 @@ void MemoryOptimizer::VisitAllocateRaw(Node* node,
                                      : __
                                        AllocateInOldSpaceStubConstant();
         if (!allocate_operator_.is_set()) {
-          auto call_descriptor =
-              Linkage::GetAllocateCallDescriptor(isolate(), graph()->zone());
+          auto call_descriptor = Linkage::GetStubCallDescriptor(
+              isolate(), graph()->zone(), AllocateDescriptor(isolate()), 0,
+              CallDescriptor::kCanUseRoots, Operator::kNoThrow,
+              MachineType::AnyTagged(), 1, Linkage::kNoContext);
           allocate_operator_.set(common()->Call(call_descriptor));
         }
         Node* vfalse = __ Call(allocate_operator_.get(), target, size);
@@ -291,8 +293,10 @@ void MemoryOptimizer::VisitAllocateRaw(Node* node,
                                  : __
                                    AllocateInOldSpaceStubConstant();
     if (!allocate_operator_.is_set()) {
-      auto call_descriptor =
-          Linkage::GetAllocateCallDescriptor(isolate(), graph()->zone());
+      auto call_descriptor = Linkage::GetStubCallDescriptor(
+          isolate(), graph()->zone(), AllocateDescriptor(isolate()), 0,
+          CallDescriptor::kCanUseRoots, Operator::kNoThrow,
+          MachineType::AnyTagged(), 1, Linkage::kNoContext);
       allocate_operator_.set(common()->Call(call_descriptor));
     }
     __ Goto(&done, __ Call(allocate_operator_.get(), target, size));