kmillikin@google.com
6c7d65e482
Only allocate space for the bits covered by the stackmap, instead of for the backing store of the utility class that built it. Fix a bug where the size in bytes was multiplied by the word size in bytes. Also do some cleanup of the stackmap code and renaming in the tests. BUG= Review URL: https://chromiumcodereview.appspot.com//10832292 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10870 260f80e4-7a28-3924-810f-c04153c831b5
106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
// Copyright (c) 2012, 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/bitmap.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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TEST_CASE(BitmapBuilder) {
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// Test basic bit map builder operations.
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BitmapBuilder* builder1 = new BitmapBuilder();
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EXPECT_EQ(-1, builder1->Maximum());
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EXPECT_EQ(-1, builder1->Minimum());
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bool value = true;
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for (int32_t i = 0; i < 128; i++) {
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builder1->Set(i, value);
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value = !value;
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}
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value = true;
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for (int32_t i = 0; i < 128; i++) {
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EXPECT_EQ(value, builder1->Get(i));
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value = !value;
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}
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value = true;
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for (int32_t i = 0; i < 1024; i++) {
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builder1->Set(i, value);
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value = !value;
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}
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value = true;
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for (int32_t i = 0; i < 1024; i++) {
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EXPECT_EQ(value, builder1->Get(i));
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value = !value;
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}
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// Create a Stackmap object from the builder and verify its contents.
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const Stackmap& stackmap1 =
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Stackmap::Handle(Stackmap::New(0, 1024, builder1));
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EXPECT_EQ(1022, builder1->Maximum());
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EXPECT_EQ(0, builder1->Minimum());
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OS::Print("%s\n", stackmap1.ToCString());
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value = true;
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for (int32_t i = 0; i < 1024; i++) {
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EXPECT_EQ(value, stackmap1.IsObject(i));
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value = !value;
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}
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EXPECT(!stackmap1.IsObject(2056)); // Out of range so returns false.
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// Test the SetRange function in the builder.
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builder1->SetRange(0, 256, false);
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builder1->SetRange(257, 1024, true);
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builder1->SetRange(1025, 2048, false);
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for (int32_t i = 0; i <= 256; i++) {
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EXPECT(!builder1->Get(i));
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}
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for (int32_t i = 257; i <= 1024; i++) {
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EXPECT(builder1->Get(i));
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}
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for (int32_t i = 1025; i <= 2048; i++) {
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EXPECT(!builder1->Get(i));
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}
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const Stackmap& stackmap2 =
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Stackmap::Handle(Stackmap::New(0, 2049, builder1));
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EXPECT_EQ(1024, builder1->Maximum());
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EXPECT_EQ(257, builder1->Minimum());
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for (int32_t i = 0; i <= 256; i++) {
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EXPECT(!stackmap2.IsObject(i));
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}
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for (int32_t i = 257; i <= 1024; i++) {
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EXPECT(stackmap2.IsObject(i));
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}
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for (int32_t i = 1025; i <= 2048; i++) {
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EXPECT(!stackmap2.IsObject(i));
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}
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// Test the functionality to copy a Stackmap object into a builder.
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BitmapBuilder* builder2 = new BitmapBuilder();
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builder2->SetBits(stackmap1);
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EXPECT_EQ(1022, builder2->Maximum());
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EXPECT_EQ(0, builder2->Minimum());
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value = true;
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for (int32_t i = 0; i < 1024; i++) {
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EXPECT_EQ(value, builder2->Get(i));
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value = !value;
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}
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BitmapBuilder* builder3 = new BitmapBuilder();
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builder3->SetBits(stackmap2);
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EXPECT_EQ(1024, builder3->Maximum());
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EXPECT_EQ(257, builder3->Minimum());
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for (int32_t i = 0; i <= 256; i++) {
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EXPECT(!builder3->Get(i));
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}
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for (int32_t i = 257; i <= 1024; i++) {
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EXPECT(builder3->Get(i));
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}
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for (int32_t i = 1025; i <= 2048; i++) {
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EXPECT(!builder3->Get(i));
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}
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}
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} // namespace dart
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