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

src/x87/macro-assembler-x87.cc

Index: src/x87/macro-assembler-x87.cc
diff --git a/src/x87/macro-assembler-x87.cc b/src/x87/macro-assembler-x87.cc
index a743380c603b3996287a12fb96cc852a4a770bc5..4651f57847aac8cfb0877c9731007595d7b7bc6c 100644
--- a/src/x87/macro-assembler-x87.cc
+++ b/src/x87/macro-assembler-x87.cc
@@ -1952,14 +1952,20 @@ void MacroAssembler::InvokePrologue(const ParameterCount& expected,
 }
 
 
-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,
@@ -1978,7 +1984,7 @@ void MacroAssembler::InvokeCode(const Operand& code,
 }
 
 
-void MacroAssembler::InvokeFunction(Register fun,
+void MacroAssembler::InvokeFunction(Register fun, Register new_target,
                                     const ParameterCount& actual,
                                     InvokeFlag flag,
                                     const CallWrapper& call_wrapper) {
@@ -1986,13 +1992,13 @@ void MacroAssembler::InvokeFunction(Register fun,
   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);
 }
 
@@ -2008,8 +2014,8 @@ void MacroAssembler::InvokeFunction(Register fun,
   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);
 }
 
 
@@ -2033,8 +2039,8 @@ void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag,
   // 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);
 }