MIPS: Handlify CompileConstructStub and the remaining CallStubCompiler functions.

src/mips/macro-assembler-mips.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3592 matching lines @@
       FieldMemOperand(code_reg,
                       SharedFunctionInfo::kFormalParameterCountOffset));
   sra(expected_reg, expected_reg, kSmiTagSize);
   lw(code_reg, FieldMemOperand(a1, JSFunction::kCodeEntryOffset));
 
   ParameterCount expected(expected_reg);
   InvokeCode(code_reg, expected, actual, flag, call_wrapper, call_kind);
 }
 
 
-void MacroAssembler::InvokeFunction(JSFunction* function,
+void MacroAssembler::InvokeFunction(Handle<JSFunction> function,
                                     const ParameterCount& actual,
                                     InvokeFlag flag,
                                     CallKind call_kind) {
   // You can't call a function without a valid frame.
   ASSERT(flag == JUMP_FUNCTION || has_frame());
 
   // Get the function and setup the context.
-  li(a1, Operand(Handle<JSFunction>(function)));
+  li(a1, Operand(function));
   lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
 
   ParameterCount expected(function->shared()->formal_parameter_count());
   // We call indirectly through the code field in the function to
   // allow recompilation to take effect without changing any of the
   // call sites.
   lw(a3, FieldMemOperand(a1, JSFunction::kCodeEntryOffset));
   InvokeCode(a3, expected, actual, flag, NullCallWrapper(), call_kind);
 }
 
@@ skipping 100 matching lines @@
 // -----------------------------------------------------------------------------
 // Runtime calls.
 
 void MacroAssembler::CallStub(CodeStub* stub, Condition cond,
                               Register r1, const Operand& r2) {
   ASSERT(AllowThisStubCall(stub));  // Stub calls are not allowed in some stubs.
   Call(stub->GetCode(), RelocInfo::CODE_TARGET, kNoASTId, cond, r1, r2);
 }
 
 
-MaybeObject* MacroAssembler::TryCallStub(CodeStub* stub, Condition cond,
-                                         Register r1, const Operand& r2) {
-  ASSERT(AllowThisStubCall(stub));  // Stub calls are not allowed in some stubs.
-  Object* result;
-  { MaybeObject* maybe_result = stub->TryGetCode();
-    if (!maybe_result->ToObject(&result)) return maybe_result;
-  }
-  Call(Handle<Code>(Code::cast(result)), RelocInfo::CODE_TARGET,
-      kNoASTId, cond, r1, r2);
-  return result;
-}
-
-
 void MacroAssembler::TailCallStub(CodeStub* stub) {
   ASSERT(allow_stub_calls_ || stub->CompilingCallsToThisStubIsGCSafe());
   Jump(stub->GetCode(), RelocInfo::CODE_TARGET);
 }
 
 
-MaybeObject* MacroAssembler::TryTailCallStub(CodeStub* stub,
-                                             Condition cond,
-                                             Register r1,
-                                             const Operand& r2) {
-  Object* result;
-  { MaybeObject* maybe_result = stub->TryGetCode();
-    if (!maybe_result->ToObject(&result)) return maybe_result;
-  }
-  Jump(Handle<Code>(Code::cast(result)), RelocInfo::CODE_TARGET, cond, r1, r2);
-  return result;
-}
-
-
 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) {
   return ref0.address() - ref1.address();
 }
 
 
-MaybeObject* MacroAssembler::TryCallApiFunctionAndReturn(
-    ExternalReference function, int stack_space) {
+void MacroAssembler::CallApiFunctionAndReturn(ExternalReference function,
+                                              int stack_space) {
   ExternalReference next_address =
       ExternalReference::handle_scope_next_address();
   const int kNextOffset = 0;
   const int kLimitOffset = AddressOffset(
       ExternalReference::handle_scope_limit_address(),
       next_address);
   const int kLevelOffset = AddressOffset(
       ExternalReference::handle_scope_level_address(),
       next_address);
 
@@ skipping 50 matching lines @@
   bind(&leave_exit_frame);
   LoadRoot(t0, Heap::kTheHoleValueRootIndex);
   li(at, Operand(ExternalReference::scheduled_exception_address(isolate())));
   lw(t1, MemOperand(at));
   Branch(&promote_scheduled_exception, ne, t0, Operand(t1));
   li(s0, Operand(stack_space));
   LeaveExitFrame(false, s0);
   Ret();
 
   bind(&promote_scheduled_exception);
-  MaybeObject* result = TryTailCallExternalReference(
-      ExternalReference(Runtime::kPromoteScheduledException, isolate()), 0, 1);
-  if (result->IsFailure()) {
-    return result;
-  }
+  TailCallExternalReference(
+      ExternalReference(Runtime::kPromoteScheduledException, isolate()),
+      0,
+      1);
 
   // HandleScope limit has changed. Delete allocated extensions.
   bind(&delete_allocated_handles);
   sw(s1, MemOperand(s3, kLimitOffset));
   mov(s0, v0);
   mov(a0, v0);
   PrepareCallCFunction(1, s1);
   li(a0, Operand(ExternalReference::isolate_address()));
   CallCFunction(ExternalReference::delete_handle_scope_extensions(isolate()),
       1);
   mov(v0, s0);
   jmp(&leave_exit_frame);
-
-  return result;
 }
 
 
 bool MacroAssembler::AllowThisStubCall(CodeStub* stub) {
   if (!has_frame_ && stub->SometimesSetsUpAFrame()) return false;
   return allow_stub_calls_ || stub->CompilingCallsToThisStubIsGCSafe();
 }
 
 
 void MacroAssembler::IllegalOperation(int num_arguments) {
@@ skipping 202 matching lines @@
                                                int result_size) {
   // TODO(1236192): Most runtime routines don't need the number of
   // arguments passed in because it is constant. At some point we
   // should remove this need and make the runtime routine entry code
   // smarter.
   li(a0, Operand(num_arguments));
   JumpToExternalReference(ext);
 }
 
 
-MaybeObject* MacroAssembler::TryTailCallExternalReference(
-    const ExternalReference& ext, int num_arguments, int result_size) {
-  // TODO(1236192): Most runtime routines don't need the number of
-  // arguments passed in because it is constant. At some point we
-  // should remove this need and make the runtime routine entry code
-  // smarter.
-  li(a0, num_arguments);
-  return TryJumpToExternalReference(ext);
-}
-
-
 void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid,
                                      int num_arguments,
                                      int result_size) {
   TailCallExternalReference(ExternalReference(fid, isolate()),
                             num_arguments,
                             result_size);
 }
 
 
 void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin) {
   li(a1, Operand(builtin));
   CEntryStub stub(1);
   Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
 }
 
 
-MaybeObject* MacroAssembler::TryJumpToExternalReference(
-    const ExternalReference& builtin) {
-  li(a1, Operand(builtin));
-  CEntryStub stub(1);
-  return TryTailCallStub(&stub);
-}
-
-
 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id,
                                    InvokeFlag flag,
                                    const CallWrapper& call_wrapper) {
   // You can't call a builtin without a valid frame.
   ASSERT(flag == JUMP_FUNCTION || has_frame());
 
   GetBuiltinEntry(t9, id);
   if (flag == CALL_FUNCTION) {
     call_wrapper.BeforeCall(CallSize(t9));
     SetCallKind(t1, CALL_AS_METHOD);
@@ skipping 991 matching lines @@
        opcode == BGTZL);
   opcode = (cond == eq) ? BEQ : BNE;
   instr = (instr & ~kOpcodeMask) | opcode;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS