dart-sdk/runtime/vm/object_mips_test.cc
fschneider@google.com aa789a7b27 Merge (x & y) == 0 pattern to emit a single test instruction.
This is based on a previous uncommitted CL by vegorov@
(https://codereview.chromium.org/14251023/).

It is rebased and fixes a bug in the MIPS implementation: BranchOnCondition
requires the comparison result in fixed registers CMPRES1/CMPRES2.

Remove register alias TMP1 (=TMP) and CMPRES (=CMPRES1). It is confusing to
have them around and easy to forget that they are actually the same.

R=srdjan@google.com, zra@google.com

Review URL: https://codereview.chromium.org//59613005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29966 260f80e4-7a28-3924-810f-c04153c831b5
2013-11-06 12:13:29 +00:00

55 lines
1.6 KiB
C++

// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/assert.h"
#include "vm/globals.h"
#if defined(TARGET_ARCH_MIPS)
#include "vm/assembler.h"
#include "vm/object.h"
#include "vm/unit_test.h"
namespace dart {
#define __ assembler->
// Generate a simple dart code sequence.
// This is used to test Code and Instruction object creation.
void GenerateIncrement(Assembler* assembler) {
__ Push(ZR);
__ lw(TMP, Address(SP, 0));
__ addiu(TMP, TMP, Immediate(1));
__ sw(TMP, Address(SP, 0));
__ lw(TMP, Address(SP, 0));
__ addiu(TMP, TMP, Immediate(1));
__ Pop(V0);
__ mov(V0, TMP);
__ Ret();
}
// Generate a dart code sequence that embeds a string object in it.
// This is used to test Embedded String objects in the instructions.
void GenerateEmbedStringInCode(Assembler* assembler, const char* str) {
__ EnterDartFrame(0); // To setup pp.
const String& string_object =
String::ZoneHandle(String::New(str, Heap::kOld));
__ LoadObject(V0, string_object);
__ LeaveDartFrameAndReturn();
}
// Generate a dart code sequence that embeds a smi object in it.
// This is used to test Embedded Smi objects in the instructions.
void GenerateEmbedSmiInCode(Assembler* assembler, intptr_t value) {
// No need to setup pp, since Smis are not stored in the object pool.
const Smi& smi_object = Smi::ZoneHandle(Smi::New(value));
__ LoadObject(V0, smi_object);
__ Ret();
}
} // namespace dart
#endif // defined TARGET_ARCH_MIPS