MIPS: Error found in test262 on ARM: BinaryOpStub could call out to a built-in and push parameters …

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index f1c2553d1c23e8b4475d2d315784d45df653cbdf..e180a6014059e9f423293d234affaa079c727929 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -2400,8 +2400,12 @@ void BinaryOpStub::GenerateSmiStub(MacroAssembler* masm) {
   GenerateTypeTransition(masm);
 
   __ bind(&call_runtime);
-  GenerateRegisterArgsPush(masm);
-  GenerateCallRuntime(masm);
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    GenerateRegisterArgsPush(masm);
+    GenerateCallRuntime(masm);
+  }
+  __ Ret();
 }
 
 
@@ -2426,7 +2430,8 @@ void BinaryOpStub::GenerateBothStringStub(MacroAssembler* masm) {
   __ GetObjectType(right, a2, a2);
   __ Branch(&call_runtime, ge, a2, Operand(FIRST_NONSTRING_TYPE));
 
-  StringAddStub string_add_stub(NO_STRING_CHECK_IN_STUB);
+  StringAddStub string_add_stub((StringAddFlags)
+                                (ERECT_FRAME | NO_STRING_CHECK_IN_STUB));
   GenerateRegisterArgsPush(masm);
   __ TailCallStub(&string_add_stub);
 
@@ -2746,8 +2751,12 @@ void BinaryOpStub::GenerateInt32Stub(MacroAssembler* masm) {
   }
 
   __ bind(&call_runtime);
-  GenerateRegisterArgsPush(masm);
-  GenerateCallRuntime(masm);
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    GenerateRegisterArgsPush(masm);
+    GenerateCallRuntime(masm);
+  }
+  __ Ret();
 }
 
 
@@ -2794,8 +2803,12 @@ void BinaryOpStub::GenerateNumberStub(MacroAssembler* masm) {
   GenerateTypeTransition(masm);
 
   __ bind(&call_runtime);
-  GenerateRegisterArgsPush(masm);
-  GenerateCallRuntime(masm);
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    GenerateRegisterArgsPush(masm);
+    GenerateCallRuntime(masm);
+  }
+  __ Ret();
 }
 
 
@@ -2818,8 +2831,12 @@ void BinaryOpStub::GenerateGeneric(MacroAssembler* masm) {
   }
 
   __ bind(&call_runtime);
-  GenerateRegisterArgsPush(masm);
-  GenerateCallRuntime(masm);
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    GenerateRegisterArgsPush(masm);
+    GenerateCallRuntime(masm);
+  }
+  __ Ret();
 }
 
 
@@ -2835,7 +2852,8 @@ void BinaryOpStub::GenerateAddStrings(MacroAssembler* masm) {
   __ GetObjectType(left, a2, a2);
   __ Branch(&left_not_string, ge, a2, Operand(FIRST_NONSTRING_TYPE));
 
-  StringAddStub string_add_left_stub(NO_STRING_CHECK_LEFT_IN_STUB);
+  StringAddStub string_add_left_stub((StringAddFlags)
+      (ERECT_FRAME | NO_STRING_CHECK_LEFT_IN_STUB));
   GenerateRegisterArgsPush(masm);
   __ TailCallStub(&string_add_left_stub);
 
@@ -2845,7 +2863,8 @@ void BinaryOpStub::GenerateAddStrings(MacroAssembler* masm) {
   __ GetObjectType(right, a2, a2);
   __ Branch(&call_runtime, ge, a2, Operand(FIRST_NONSTRING_TYPE));
 
-  StringAddStub string_add_right_stub(NO_STRING_CHECK_RIGHT_IN_STUB);
+  StringAddStub string_add_right_stub((StringAddFlags)
+      (ERECT_FRAME | NO_STRING_CHECK_RIGHT_IN_STUB));
   GenerateRegisterArgsPush(masm);
   __ TailCallStub(&string_add_right_stub);
 
@@ -6181,7 +6200,7 @@ void StringAddStub::Generate(MacroAssembler* masm) {
   __ lw(a1, MemOperand(sp, 0 * kPointerSize));  // Second argument.
 
   // Make sure that both arguments are strings if not known in advance.
-  if (flags_ == NO_STRING_ADD_FLAGS) {
+  if ((flags_ & NO_STRING_ADD_FLAGS) != 0) {
     __ JumpIfEitherSmi(a0, a1, &call_runtime);
     // Load instance types.
     __ lw(t0, FieldMemOperand(a0, HeapObject::kMapOffset));
@@ -6470,15 +6489,49 @@ void StringAddStub::Generate(MacroAssembler* masm) {
 
   // Just jump to runtime to add the two strings.
   __ bind(&call_runtime);
-  __ TailCallRuntime(Runtime::kStringAdd, 2, 1);
+  if ((flags_ & ERECT_FRAME) != 0) {
+    GenerateRegisterArgsPop(masm);
+    // Build a frame

[Paul Lind, 2013/05/15 00:31:24]

nit, comment should end with period.

[palfia, 2013/05/15 00:55:31]

Done.

+    {
+      FrameScope scope(masm, StackFrame::INTERNAL);
+      GenerateRegisterArgsPush(masm);
+      __ CallRuntime(Runtime::kStringAdd, 2);
+    }
+    __ Ret();
+  } else {
+    __ TailCallRuntime(Runtime::kStringAdd, 2, 1);
+  }
 
   if (call_builtin.is_linked()) {
     __ bind(&call_builtin);
-    __ InvokeBuiltin(builtin_id, JUMP_FUNCTION);
+    if ((flags_ & ERECT_FRAME) != 0) {
+      GenerateRegisterArgsPop(masm);
+      // Build a frame

[Paul Lind, 2013/05/15 00:31:24]

nit, comment should end with period.

[palfia, 2013/05/15 00:55:31]

Done.

+      {
+        FrameScope scope(masm, StackFrame::INTERNAL);
+        GenerateRegisterArgsPush(masm);
+        __ InvokeBuiltin(builtin_id, CALL_FUNCTION);
+      }
+      __ Ret();
+    } else {
+      __ InvokeBuiltin(builtin_id, JUMP_FUNCTION);
+    }
   }
 }
 
 
+void StringAddStub::GenerateRegisterArgsPush(MacroAssembler* masm) {
+  __ push(a0);
+  __ push(a1);
+}
+
+
+void StringAddStub::GenerateRegisterArgsPop(MacroAssembler* masm) {
+  __ pop(a1);
+  __ pop(a0);
+}
+
+
 void StringAddStub::GenerateConvertArgument(MacroAssembler* masm,
                                             int stack_offset,
                                             Register arg,