zra@google.com
3c10f6b796
On MIPS, we have a lot of registers, and we don't use very many of them. This change removes the second temporary register TMP2, and instead dedicates a register to holding Object::null(), which is used frequently for comparisons, etc.. Also, uses branch delay slot when leaving a dart frame and returning. R=regis@google.com Review URL: https://codereview.chromium.org//14854010 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22331 260f80e4-7a28-3924-810f-c04153c831b5
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/assert.h"
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#include "vm/globals.h"
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#if defined(TARGET_ARCH_MIPS)
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#include "vm/assembler.h"
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#include "vm/object.h"
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#include "vm/unit_test.h"
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namespace dart {
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#define __ assembler->
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// Generate a simple dart code sequence.
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// This is used to test Code and Instruction object creation.
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void GenerateIncrement(Assembler* assembler) {
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__ Push(ZR);
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__ lw(TMP1, Address(SP, 0));
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__ addiu(TMP1, TMP1, Immediate(1));
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__ sw(TMP1, Address(SP, 0));
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__ lw(TMP1, Address(SP, 0));
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__ addiu(TMP1, TMP1, Immediate(1));
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__ Pop(V0);
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__ mov(V0, TMP1);
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__ Ret();
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}
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// Generate a dart code sequence that embeds a string object in it.
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// This is used to test Embedded String objects in the instructions.
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void GenerateEmbedStringInCode(Assembler* assembler, const char* str) {
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__ EnterDartFrame(0); // To setup pp.
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const String& string_object =
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String::ZoneHandle(String::New(str, Heap::kOld));
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__ LoadObject(V0, string_object);
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__ LeaveDartFrameAndReturn();
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}
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// Generate a dart code sequence that embeds a smi object in it.
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// This is used to test Embedded Smi objects in the instructions.
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void GenerateEmbedSmiInCode(Assembler* assembler, intptr_t value) {
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// No need to setup pp, since Smis are not stored in the object pool.
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const Smi& smi_object = Smi::ZoneHandle(Smi::New(value));
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__ LoadObject(V0, smi_object);
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__ Ret();
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_MIPS
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