PPC/s390: [Interpreter] Collect allocation site feedback in call bytecode handler.

src/builtins/s390/builtins-s390.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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1173 matching lines @@
     // Push function as argument and compile for baseline.
     __ push(r3);
     __ CallRuntime(Runtime::kCompileBaseline);
 
     // Restore return value.
     __ pop(r2);
   }
   __ Ret();
 }
 
-static void Generate_InterpreterPushArgs(MacroAssembler* masm, Register index,
+static void Generate_InterpreterPushArgs(MacroAssembler* masm,
+                                         Register num_args, Register index,
                                          Register count, Register scratch) {
+  // TODO(mythria): Add a stack check before pushing arguments.
   Label loop;
   __ AddP(index, index, Operand(kPointerSize));  // Bias up for LoadPU
   __ LoadRR(r0, count);
   __ bind(&loop);
   __ LoadP(scratch, MemOperand(index, -kPointerSize));
   __ lay(index, MemOperand(index, -kPointerSize));
   __ push(scratch);
   __ SubP(r0, Operand(1));
   __ bne(&loop);
 }
 
 // static
 void Builtins::Generate_InterpreterPushArgsAndCallImpl(
     MacroAssembler* masm, TailCallMode tail_call_mode,
     CallableType function_type) {
   // ----------- S t a t e -------------
   //  -- r2 : the number of arguments (not including the receiver)
   //  -- r4 : the address of the first argument to be pushed. Subsequent
   //          arguments should be consecutive above this, in the same order as
   //          they are to be pushed onto the stack.
   //  -- r3 : the target to call (can be any Object).
   // -----------------------------------
 
   // Calculate number of arguments (AddP one for receiver).
   __ AddP(r5, r2, Operand(1));
 
   // Push the arguments.
-  Generate_InterpreterPushArgs(masm, r4, r5, r6);
+  Generate_InterpreterPushArgs(masm, r5, r4, r5, r6);
 
   // Call the target.
   if (function_type == CallableType::kJSFunction) {
     __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny,
                                                       tail_call_mode),
             RelocInfo::CODE_TARGET);
   } else {
     DCHECK_EQ(function_type, CallableType::kAny);
     __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny,
                                               tail_call_mode),
@@ skipping 13 matching lines @@
   // -----------------------------------
 
   // Push a slot for the receiver to be constructed.
   __ LoadImmP(r0, Operand::Zero());
   __ push(r0);
 
   // Push the arguments (skip if none).
   Label skip;
   __ CmpP(r2, Operand::Zero());
   __ beq(&skip);
-  Generate_InterpreterPushArgs(masm, r6, r2, r7);
+  Generate_InterpreterPushArgs(masm, r2, r6, r2, r7);
   __ bind(&skip);
 
   __ AssertUndefinedOrAllocationSite(r4, r7);
   if (construct_type == CallableType::kJSFunction) {
     __ AssertFunction(r3);
 
     // Tail call to the function-specific construct stub (still in the caller
     // context at this point).
     __ LoadP(r6, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset));
     __ LoadP(r6, FieldMemOperand(r6, SharedFunctionInfo::kConstructStubOffset));
     // Jump to the construct function.
     __ AddP(ip, r6, Operand(Code::kHeaderSize - kHeapObjectTag));
     __ Jump(ip);
 
   } else {
     DCHECK_EQ(construct_type, CallableType::kAny);
     // Call the constructor with r2, r3, and r5 unmodified.
     __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
   }
 }
 
+// static
+void Builtins::Generate_InterpreterPushArgsAndConstructArray(
+    MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  // -- r2 : argument count (not including receiver)
+  // -- r3 : target to call verified to be Array function
+  // -- r4 : allocation site feedback if available, undefined otherwise.
+  // -- r5 : address of the first argument
+  // -----------------------------------
+
+  __ AddP(r6, r2, Operand(1));  // Add one for receiver.
+
+  // TODO(mythria): Add a stack check before pushing arguments.
+  // Push the arguments. r6, r8, r3 will be modified.
+  Generate_InterpreterPushArgs(masm, r6, r5, r6, r7);
+
+  // Array constructor expects constructor in r5. It is same as r3 here.
+  __ LoadRR(r5, r3);
+
+  ArrayConstructorStub stub(masm->isolate());
+  __ TailCallStub(&stub);
+}
+
 void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
   // Set the return address to the correct point in the interpreter entry
   // trampoline.
   Smi* interpreter_entry_return_pc_offset(
       masm->isolate()->heap()->interpreter_entry_return_pc_offset());
   DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0));
   __ Move(r4, masm->isolate()->builtins()->InterpreterEntryTrampoline());
   __ AddP(r14, r4, Operand(interpreter_entry_return_pc_offset->value() +
                            Code::kHeaderSize - kHeapObjectTag));
 
@@ skipping 1759 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390