X87: [turbofan] Switch passing of new.target to register.

src/x87/macro-assembler-x87.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_X87
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 1934 matching lines @@
         jmp(done, done_near);
       }
     } else {
       jmp(adaptor, RelocInfo::CODE_TARGET);
     }
     bind(&invoke);
   }
 }
 
 
-void MacroAssembler::InvokeCode(const Operand& code,
+void MacroAssembler::InvokeCode(const Operand& code, Register new_target,
                                 const ParameterCount& expected,
-                                const ParameterCount& actual,
-                                InvokeFlag flag,
+                                const ParameterCount& actual, InvokeFlag flag,
                                 const CallWrapper& call_wrapper) {
   // You can't call a function without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
+  // Ensure new target is passed in the correct register. Otherwise clear the
+  // appropriate register in case new target is not given.
+  DCHECK_IMPLIES(new_target.is_valid(), new_target.is(edx));
+  if (!new_target.is_valid()) {
+    mov(edx, isolate()->factory()->undefined_value());
+  }
+
   Label done;
   bool definitely_mismatches = false;
   InvokePrologue(expected, actual, &done, &definitely_mismatches, flag,
                  Label::kNear, call_wrapper);
   if (!definitely_mismatches) {
     if (flag == CALL_FUNCTION) {
       call_wrapper.BeforeCall(CallSize(code));
       call(code);
       call_wrapper.AfterCall();
     } else {
       DCHECK(flag == JUMP_FUNCTION);
       jmp(code);
     }
     bind(&done);
   }
 }
 
 
-void MacroAssembler::InvokeFunction(Register fun,
+void MacroAssembler::InvokeFunction(Register fun, Register new_target,
                                     const ParameterCount& actual,
                                     InvokeFlag flag,
                                     const CallWrapper& call_wrapper) {
   // You can't call a function without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
   DCHECK(fun.is(edi));
-  mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
+  mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
-  mov(ebx, FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset));
+  mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kFormalParameterCountOffset));
   SmiUntag(ebx);
 
   ParameterCount expected(ebx);
-  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset),
+  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), new_target,
              expected, actual, flag, call_wrapper);
 }
 
 
 void MacroAssembler::InvokeFunction(Register fun,
                                     const ParameterCount& expected,
                                     const ParameterCount& actual,
                                     InvokeFlag flag,
                                     const CallWrapper& call_wrapper) {
   // You can't call a function without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
   DCHECK(fun.is(edi));
   mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
 
-  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset),
-             expected, actual, flag, call_wrapper);
+  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), no_reg, expected,
+             actual, flag, call_wrapper);
 }
 
 
 void MacroAssembler::InvokeFunction(Handle<JSFunction> function,
                                     const ParameterCount& expected,
                                     const ParameterCount& actual,
                                     InvokeFlag flag,
                                     const CallWrapper& call_wrapper) {
   LoadHeapObject(edi, function);
   InvokeFunction(edi, expected, actual, flag, call_wrapper);
 }
 
 
 void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag,
                                    const CallWrapper& call_wrapper) {
   // You can't call a builtin without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
   // Rely on the assertion to check that the number of provided
   // arguments match the expected number of arguments. Fake a
   // parameter count to avoid emitting code to do the check.
   ParameterCount expected(0);
   GetBuiltinFunction(edi, native_context_index);
-  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset),
-             expected, expected, flag, call_wrapper);
+  InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), no_reg, expected,
+             expected, flag, call_wrapper);
 }
 
 
 void MacroAssembler::GetBuiltinFunction(Register target,
                                         int native_context_index) {
   // Load the JavaScript builtin function from the builtins object.
   mov(target, Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
   mov(target, FieldOperand(target, JSGlobalObject::kNativeContextOffset));
   mov(target, ContextOperand(target, native_context_index));
 }
@@ skipping 963 matching lines @@
   mov(eax, dividend);
   shr(eax, 31);
   add(edx, eax);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87