fschneider@google.com
253c3f8499
This CL contains: A new CheckClassComp instruction. Currently it is used only for instance loads: (LoadInstanceFieldComp) A pass LocalCSE that performs block-local common subexpression elimination. To identify redundant expressions I use a hash map per basic block. Computations that do not have side effects can participate in CSE. For now, I only enabled it for CheckClass. Any computation that participates in CSE must implement the AttributesEqual function. Other smaller fixes: Places where we can pass the correct initial size for GrowableArrays that have a known size. We should consider having a FixedLengthArray for this purpose. Made the accessors ic_data() and set_ic_data() use a const ICData*. Review URL: https://chromiumcodereview.appspot.com//10824349 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10948 260f80e4-7a28-3924-810f-c04153c831b5
36 lines
879 B
C++
36 lines
879 B
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/unit_test.h"
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#include "vm/hash_map.h"
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namespace dart {
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class TestValue {
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public:
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explicit TestValue(intptr_t x) : x_(x) { }
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intptr_t Hashcode() const { return x_ & 1; }
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bool Equals(TestValue* other) { return x_ == other->x_; }
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private:
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intptr_t x_;
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};
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TEST_CASE(DirectChainedHashMap) {
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DirectChainedHashMap<TestValue*> map;
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EXPECT(map.IsEmpty());
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TestValue v1(0);
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TestValue v2(1);
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TestValue v3(0);
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map.Insert(&v1);
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EXPECT(map.Lookup(&v1) == &v1);
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map.Insert(&v2);
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EXPECT(map.Lookup(&v1) == &v1);
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EXPECT(map.Lookup(&v2) == &v2);
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EXPECT(map.Lookup(&v3) == &v1);
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}
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} // namespace dart
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