[turbofan] Remove architecture-specific linkage files and LinkageTraits. Use macro-assembler-define…

src/compiler/runtime-linkage.cc

+// Copyright 2015 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.
+
+#include "src/assembler.h"
+#include "src/macro-assembler.h"
+
+#include "src/compiler/linkage.h"
+
+#include "src/compiler/linkage-impl.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+CallDescriptor* Linkage::GetRuntimeCallDescriptor(
+    Zone* zone, Runtime::FunctionId function_id, int js_parameter_count,
+    Operator::Properties properties) {
+  const size_t function_count = 1;
+  const size_t num_args_count = 1;
+  const size_t context_count = 1;
+  const size_t parameter_count = function_count +
+                                 static_cast<size_t>(js_parameter_count) +
+                                 num_args_count + context_count;
+
+  const Runtime::Function* function = Runtime::FunctionForId(function_id);
+  const size_t return_count = static_cast<size_t>(function->result_size);
+
+  LocationSignature::Builder locations(zone, return_count, parameter_count);
+  MachineSignature::Builder types(zone, return_count, parameter_count);
+
+  // Add returns.
+  if (locations.return_count_ > 0) {
+    locations.AddReturn(regloc(kReturnRegister0));
+  }
+  if (locations.return_count_ > 1) {
+    locations.AddReturn(regloc(kReturnRegister1));
+  }
+  for (size_t i = 0; i < return_count; i++) {
+    types.AddReturn(kMachAnyTagged);
+  }
+
+  // All parameters to the runtime call go on the stack.
+  for (int i = 0; i < js_parameter_count; i++) {
+    locations.AddParam(stackloc(i - js_parameter_count));
+    types.AddParam(kMachAnyTagged);
+  }
+  // Add runtime function itself.
+  locations.AddParam(regloc(kRuntimeCallFunctionRegister));
+  types.AddParam(kMachAnyTagged);
+
+  // Add runtime call argument count.
+  locations.AddParam(regloc(kRuntimeCallArgCountRegister));
+  types.AddParam(kMachPtr);
+
+  // Add context.
+  locations.AddParam(regloc(kContextRegister));
+  types.AddParam(kMachAnyTagged);
+
+  CallDescriptor::Flags flags = Linkage::FrameStateInputCount(function_id) > 0
+                                    ? CallDescriptor::kNeedsFrameState
+                                    : CallDescriptor::kNoFlags;
+
+  // The target for runtime calls is a code object.
+  MachineType target_type = kMachAnyTagged;
+  LinkageLocation target_loc = LinkageLocation::ForAnyRegister();
+  return new (zone) CallDescriptor(     // --
+      CallDescriptor::kCallCodeObject,  // kind
+      target_type,                      // target MachineType
+      target_loc,                       // target location
+      types.Build(),                    // machine_sig
+      locations.Build(),                // location_sig
+      js_parameter_count,               // stack_parameter_count
+      properties,                       // properties
+      kNoCalleeSaved,                   // callee-saved
+      kNoCalleeSaved,                   // callee-saved fp
+      flags,                            // flags
+      function->name);                  // debug name
+}
+}
+}
+}