[turbofan] Switch passing of new.target to register.

src/arm/builtins-arm.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_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 274 matching lines @@
     __ CallRuntime(Runtime::kNewObject, 2);
     __ Pop(r2);
   }
   __ str(r2, FieldMemOperand(r0, JSValue::kValueOffset));
   __ Ret();
 }
 
 
 static void CallRuntimePassFunction(
     MacroAssembler* masm, Runtime::FunctionId function_id) {
+  // ----------- S t a t e -------------
+  //  -- r1 : target function (preserved for callee)
+  //  -- r3 : new target (preserved for callee)
+  // -----------------------------------
+
   FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
-  // Push a copy of the function onto the stack.
+  // Push a copy of the target function and the new target.
   __ push(r1);
+  __ push(r3);
   // Push function as parameter to the runtime call.
   __ Push(r1);
 
   __ CallRuntime(function_id, 1);
-  // Restore receiver.
+  // Restore target function and new target.
+  __ pop(r3);
   __ pop(r1);
 }
 
 
 static void GenerateTailCallToSharedCode(MacroAssembler* masm) {
   __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
   __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kCodeOffset));
   __ add(r2, r2, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ Jump(r2);
 }
@@ skipping 219 matching lines @@
       __ PushRoot(Heap::kTheHoleValueRootIndex);
     }
 
     // Set up pointer to last argument.
     __ add(r2, fp, Operand(StandardFrameConstants::kCallerSPOffset));
 
     // Copy arguments and receiver to the expression stack.
     // r0: number of arguments
     // r1: constructor function
     // r2: address of last argument (caller sp)
-    // r3: number of arguments (smi-tagged)
+    // r3: new target
+    // r4: number of arguments (smi-tagged)
     // sp[0]: receiver
     // sp[1]: receiver
     // sp[2]: new.target
     // sp[3]: number of arguments (smi-tagged)
     Label loop, entry;
-    __ SmiTag(r3, r0);
+    __ SmiTag(r4, r0);
     __ b(&entry);
     __ bind(&loop);
-    __ ldr(ip, MemOperand(r2, r3, LSL, kPointerSizeLog2 - 1));
+    __ ldr(ip, MemOperand(r2, r4, LSL, kPointerSizeLog2 - 1));
     __ push(ip);
     __ bind(&entry);
-    __ sub(r3, r3, Operand(2), SetCC);
+    __ sub(r4, r4, Operand(2), SetCC);
     __ b(ge, &loop);
 
     // Call the function.
     // r0: number of arguments
     // r1: constructor function
+    // r3: new target
     if (is_api_function) {
       __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
       Handle<Code> code =
           masm->isolate()->builtins()->HandleApiCallConstruct();
       __ Call(code, RelocInfo::CODE_TARGET);
     } else {
       ParameterCount actual(r0);
-      __ InvokeFunction(r1, actual, CALL_FUNCTION, NullCallWrapper());
+      __ InvokeFunction(r1, r3, actual, CALL_FUNCTION, NullCallWrapper());
     }
 
     // Store offset of return address for deoptimizer.
     if (create_implicit_receiver && !is_api_function) {
       masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset());
     }
 
     // Restore context from the frame.
     // r0: result
     // sp[0]: receiver
@@ skipping 401 matching lines @@
   // For now, we are relying on the fact that make_code_young doesn't do any
   // garbage collection which allows us to save/restore the registers without
   // worrying about which of them contain pointers. We also don't build an
   // internal frame to make the code faster, since we shouldn't have to do stack
   // crawls in MakeCodeYoung. This seems a bit fragile.
 
   // The following registers must be saved and restored when calling through to
   // the runtime:
   //   r0 - contains return address (beginning of patch sequence)
   //   r1 - isolate
+  //   r3 - new target
   FrameScope scope(masm, StackFrame::MANUAL);
-  __ stm(db_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit());
+  __ stm(db_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit());
   __ PrepareCallCFunction(2, 0, r2);
   __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate())));
   __ CallCFunction(
       ExternalReference::get_make_code_young_function(masm->isolate()), 2);
-  __ ldm(ia_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit());
+  __ ldm(ia_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit());
   __ mov(pc, r0);
 }
 
 #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C)                 \
 void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking(  \
     MacroAssembler* masm) {                                  \
   GenerateMakeCodeYoungAgainCommon(masm);                    \
 }                                                            \
 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking(   \
     MacroAssembler* masm) {                                  \
   GenerateMakeCodeYoungAgainCommon(masm);                    \
 }
 CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR)
 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR
 
 
 void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) {
   // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact
   // that make_code_young doesn't do any garbage collection which allows us to
   // save/restore the registers without worrying about which of them contain
   // pointers.
 
   // The following registers must be saved and restored when calling through to
   // the runtime:
   //   r0 - contains return address (beginning of patch sequence)
   //   r1 - isolate
+  //   r3 - new target
   FrameScope scope(masm, StackFrame::MANUAL);
-  __ stm(db_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit());
+  __ stm(db_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit());
   __ PrepareCallCFunction(2, 0, r2);
   __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate())));
   __ CallCFunction(ExternalReference::get_mark_code_as_executed_function(
         masm->isolate()), 2);
-  __ ldm(ia_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit());
+  __ ldm(ia_w, sp, r0.bit() | r1.bit() | r3.bit() | fp.bit() | lr.bit());
 
   // Perform prologue operations usually performed by the young code stub.
   __ PushFixedFrame(r1);
   __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
 
   // Jump to point after the code-age stub.
   __ add(r0, r0, Operand(kNoCodeAgeSequenceLength));
   __ mov(pc, r0);
 }
 
@@ skipping 502 matching lines @@
   // ----------- S t a t e -------------
   //  -- r0 : the number of arguments (not including the receiver)
   //  -- r1 : the function to call (checked to be a JSFunction)
   //  -- r2 : the shared function info.
   //  -- cp : the function context.
   // -----------------------------------
 
   __ ldr(r2,
          FieldMemOperand(r2, SharedFunctionInfo::kFormalParameterCountOffset));
   __ SmiUntag(r2);
-  __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset));
+  __ ldr(r4, FieldMemOperand(r1, JSFunction::kCodeEntryOffset));
   ParameterCount actual(r0);
   ParameterCount expected(r2);
-  __ InvokeCode(r3, expected, actual, JUMP_FUNCTION, NullCallWrapper());
+  __ InvokeCode(r4, no_reg, expected, actual, JUMP_FUNCTION, NullCallWrapper());
 
   // The function is a "classConstructor", need to raise an exception.
   __ bind(&class_constructor);
   {
     FrameScope frame(masm, StackFrame::INTERNAL);
     __ CallRuntime(Runtime::kThrowConstructorNonCallableError, 0);
   }
 }
 
 
@@ skipping 273 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM