[turbofan] Factor out platform-independent part of InstructionSelector::VisitCall.

src/compiler/mips/instruction-selector-mips.cc

 // Copyright 2014 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/base/adapters.h"
 #include "src/base/bits.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
@@ skipping 510 matching lines @@
 void InstructionSelector::VisitFloat64RoundTruncate(Node* node) {
   VisitRR(this, kMipsFloat64RoundTruncate, node);
 }
 
 
 void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
   UNREACHABLE();
 }
 
 
-void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
+void InstructionSelector::EmitPrepareArguments(NodeVector* arguments,
+                                               const CallDescriptor* descriptor,
+                                               Node* node) {
   MipsOperandGenerator g(this);
-  const CallDescriptor* descriptor = OpParameter<const CallDescriptor*>(node);
-
-  FrameStateDescriptor* frame_state_descriptor = nullptr;
-  if (descriptor->NeedsFrameState()) {
-    frame_state_descriptor =
-        GetFrameStateDescriptor(node->InputAt(descriptor->InputCount()));
-  }
-
-  CallBuffer buffer(zone(), descriptor, frame_state_descriptor);
-
-  // Compute InstructionOperands for inputs and outputs.
-  InitializeCallBuffer(node, &buffer, true, true);
 
   // Prepare for C function call.
   if (descriptor->IsCFunctionCall()) {
     Emit(kArchPrepareCallCFunction |
              MiscField::encode(static_cast<int>(descriptor->CParameterCount())),
          0, nullptr, 0, nullptr);
 
     // Poke any stack arguments.
     int slot = kCArgSlotCount;
-    for (Node* input : buffer.pushed_nodes) {
+    for (Node* input : (*arguments)) {
       Emit(kMipsStoreToStackSlot, g.NoOutput(), g.UseRegister(input),
            g.TempImmediate(slot << kPointerSizeLog2));
       ++slot;
     }
   } else {
     // Possibly align stack here for functions.
     int push_count = static_cast<int>(descriptor->StackParameterCount());
     if (push_count > 0) {
       Emit(kMipsStackClaim, g.NoOutput(),
            g.TempImmediate(push_count << kPointerSizeLog2));
     }
-    for (size_t n = 0; n < buffer.pushed_nodes.size(); ++n) {
-      if (Node* input = buffer.pushed_nodes[n]) {
+    for (size_t n = 0; n < arguments->size(); ++n) {
+      if (Node* input = (*arguments)[n]) {
         Emit(kMipsStoreToStackSlot, g.NoOutput(), g.UseRegister(input),
              g.TempImmediate(n << kPointerSizeLog2));
       }
     }
   }
-
-  // Pass label of exception handler block.
-  CallDescriptor::Flags flags = descriptor->flags();
-  if (handler) {
-    DCHECK_EQ(IrOpcode::kIfException, handler->front()->opcode());
-    IfExceptionHint hint = OpParameter<IfExceptionHint>(handler->front());
-    if (hint == IfExceptionHint::kLocallyCaught) {
-      flags |= CallDescriptor::kHasLocalCatchHandler;
-    }
-    flags |= CallDescriptor::kHasExceptionHandler;
-    buffer.instruction_args.push_back(g.Label(handler));
-  }
-
-  // Select the appropriate opcode based on the call type.
-  InstructionCode opcode = kArchNop;
-  switch (descriptor->kind()) {
-    case CallDescriptor::kCallAddress:
-      opcode =
-          kArchCallCFunction |
-          MiscField::encode(static_cast<int>(descriptor->CParameterCount()));
-      break;
-    case CallDescriptor::kCallCodeObject:
-      opcode = kArchCallCodeObject | MiscField::encode(flags);
-      break;
-    case CallDescriptor::kCallJSFunction:
-      opcode = kArchCallJSFunction | MiscField::encode(flags);
-      break;
-    case CallDescriptor::kLazyBailout:
-      opcode = kArchLazyBailout | MiscField::encode(flags);
-      break;
-  }
-
-  // Emit the call instruction.
-  size_t const output_count = buffer.outputs.size();
-  auto* outputs = output_count ? &buffer.outputs.front() : nullptr;
-  Emit(opcode, output_count, outputs, buffer.instruction_args.size(),
-       &buffer.instruction_args.front())->MarkAsCall();
 }
 
 
 void InstructionSelector::VisitTailCall(Node* node) {
   MipsOperandGenerator g(this);
   const CallDescriptor* descriptor = OpParameter<const CallDescriptor*>(node);
   DCHECK_NE(0, descriptor->flags() & CallDescriptor::kSupportsTailCalls);
   DCHECK_EQ(0, descriptor->flags() & CallDescriptor::kPatchableCallSite);
   DCHECK_EQ(0, descriptor->flags() & CallDescriptor::kNeedsNopAfterCall);
 
@@ skipping 539 matching lines @@
       IsFp64Mode()) {
     flags |= MachineOperatorBuilder::kFloat64RoundDown |
              MachineOperatorBuilder::kFloat64RoundTruncate;
   }
   return flags;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8