[Interpreter] Collect allocation site feedback in call bytecode handler.

src/builtins/mips/builtins-mips.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_MIPS
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1142 matching lines @@
     // Push function as argument and compile for baseline.
     __ push(a1);
     __ CallRuntime(Runtime::kCompileBaseline);
 
     // Restore return value.
     __ pop(v0);
   }
   __ Jump(ra);
 }
 
+static void Generate_InterpreterPushArgs(MacroAssembler* masm,
+                                         Register num_args, Register index,
+                                         Register scratch) {
+  Register last_addr = num_args;
+  // Find the address of the last argument.
+  __ sll(last_addr, last_addr, kPointerSizeLog2);
+  __ Subu(last_addr, index, Operand(last_addr));
+
+  // Push the arguments.
+  Label loop_header, loop_check;
+  __ Branch(&loop_check);
+  __ bind(&loop_header);
+  __ lw(scratch, MemOperand(index));
+  __ Addu(index, index, Operand(-kPointerSize));
+  __ push(scratch);
+  __ bind(&loop_check);
+  __ Branch(&loop_header, gt, index, Operand(last_addr));
+}
+
 // static
 void Builtins::Generate_InterpreterPushArgsAndCallImpl(
     MacroAssembler* masm, TailCallMode tail_call_mode,
     CallableType function_type) {
   // ----------- S t a t e -------------
   //  -- a0 : the number of arguments (not including the receiver)
   //  -- a2 : 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.
   //  -- a1 : the target to call (can be any Object).
   // -----------------------------------
 
-  // Find the address of the last argument.
-  __ Addu(a3, a0, Operand(1));  // Add one for receiver.
-  __ sll(a3, a3, kPointerSizeLog2);
-  __ Subu(a3, a2, Operand(a3));
+  __ Addu(t0, a0, Operand(1));  // Add one for receiver.
 
-  // Push the arguments.
-  Label loop_header, loop_check;
-  __ Branch(&loop_check);
-  __ bind(&loop_header);
-  __ lw(t0, MemOperand(a2));
-  __ Addu(a2, a2, Operand(-kPointerSize));
-  __ push(t0);
-  __ bind(&loop_check);
-  __ Branch(&loop_header, gt, a2, Operand(a3));
+  // This function modifies a2, t4 and t0.
+  Generate_InterpreterPushArgs(masm, t0, a2, t4);
 
   // 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),
             RelocInfo::CODE_TARGET);
   }
 }
 
 // static
 void Builtins::Generate_InterpreterPushArgsAndConstructImpl(
     MacroAssembler* masm, CallableType construct_type) {
   // ----------- S t a t e -------------
   // -- a0 : argument count (not including receiver)
   // -- a3 : new target
   // -- a1 : constructor to call
   // -- a2 : allocation site feedback if available, undefined otherwise.
   // -- t4 : address of the first argument
   // -----------------------------------
 
-  // Find the address of the last argument.
-  __ sll(t0, a0, kPointerSizeLog2);
-  __ Subu(t0, t4, Operand(t0));
-
   // Push a slot for the receiver.
   __ push(zero_reg);
 
-  // Push the arguments.
-  Label loop_header, loop_check;
-  __ Branch(&loop_check);
-  __ bind(&loop_header);
-  __ lw(t1, MemOperand(t4));
-  __ Addu(t4, t4, Operand(-kPointerSize));
-  __ push(t1);
-  __ bind(&loop_check);
-  __ Branch(&loop_header, gt, t4, Operand(t0));
+  // num_args parameter will be modified by Generate_PushArgs function. Copy
+  // it to another register.
+  __ mov(t0, a0);
+
+  // This function modified t0, t4, t1.
+  Generate_InterpreterPushArgs(masm, t0, t4, t1);
 
   __ AssertUndefinedOrAllocationSite(a2, t0);
   if (construct_type == CallableType::kJSFunction) {
     __ AssertFunction(a1);
 
     // Tail call to the function-specific construct stub (still in the caller
     // context at this point).
     __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
     __ lw(t0, FieldMemOperand(t0, SharedFunctionInfo::kConstructStubOffset));
     __ Addu(at, t0, Operand(Code::kHeaderSize - kHeapObjectTag));
     __ Jump(at);
   } else {
     DCHECK_EQ(construct_type, CallableType::kAny);
     // Call the constructor with a0, a1, and a3 unmodified.
     __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
   }
 }
 
+// static
+void Builtins::Generate_InterpreterPushArgsAndConstructArray(
+    MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- a0 : the number of arguments (not including the receiver)
+  //  -- a1 : the target to call checked to be Array function.
+  //  -- a2 : allocation site feedback.
+  //  -- a3 : 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.
+  // -----------------------------------
+
+  __ Addu(t0, a0, Operand(1));  // Add one for receiver.
+
+  // This function modifies a3, t4 and t0.
+  Generate_InterpreterPushArgs(masm, t0, a3, t4);
+
+  // ArrayConstructor stub expects constructor in a3. Set it here.
+  __ mov(a3, a1);
+
+  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));
   __ li(t0, Operand(masm->isolate()->builtins()->InterpreterEntryTrampoline()));
   __ Addu(ra, t0, Operand(interpreter_entry_return_pc_offset->value() +
                           Code::kHeaderSize - kHeapObjectTag));
 
@@ skipping 1772 matching lines @@
     __ break_(0xCC);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS