fschneider@google.com
855e718f5b
Instead I introduce one new computation to materialize constants. sizeof(UseVal) drops from 64 to 32. sizeof(ConstantVal) drops from 48 to 16. Review URL: https://chromiumcodereview.appspot.com//10829451 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11041 260f80e4-7a28-3924-810f-c04153c831b5
70 lines
2.4 KiB
C++
70 lines
2.4 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 "vm/intermediate_language.h"
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#include "vm/unit_test.h"
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namespace dart {
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TEST_CASE(InstructionTests) {
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TargetEntryInstr* target_instr = new TargetEntryInstr();
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EXPECT(target_instr->IsBlockEntry());
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EXPECT(!target_instr->IsBind());
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BindInstr* bind_instr =
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new BindInstr(BindInstr::kUnused, new CurrentContextComp());
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EXPECT(bind_instr->IsBind());
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EXPECT(!bind_instr->IsBlockEntry());
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}
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TEST_CASE(DefUseTests) {
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Definition* def1 = new PhiInstr(0);
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Definition* def2 = new PhiInstr(0);
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EXPECT(def1->use_list() == NULL);
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EXPECT(def2->use_list() == NULL);
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UseVal* use1 = new UseVal(def1);
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EXPECT(def1->use_list() == use1);
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EXPECT(def1->use_list()->next_use() == NULL);
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UseVal* use2 = new UseVal(def1);
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EXPECT(def1->use_list()->next_use()->next_use() == NULL);
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UseVal* use3 = new UseVal(def1);
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EXPECT(def1->use_list()->next_use()->next_use()->next_use() == NULL);
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use1->RemoveFromUseList();
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EXPECT(def1->use_list()->next_use()->next_use() == NULL);
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use3->SetDefinition(def2);
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EXPECT(def1->use_list() == use2);
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EXPECT(def1->use_list()->next_use() == NULL);
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EXPECT(def2->use_list() == use3);
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EXPECT(def2->use_list()->next_use() == NULL);
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BindInstr* bind =
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new BindInstr(BindInstr::kUsed, new BooleanNegateComp(use2));
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bind->RemoveInputUses();
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EXPECT(def1->use_list() == NULL);
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// Test replacing with a definition without uses.
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UseVal* use4 = new UseVal(def2);
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def2->ReplaceUsesWith(def1);
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EXPECT(def1->use_list() == use4);
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EXPECT(def2->use_list() == NULL);
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EXPECT(use4->definition() == def1);
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}
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TEST_CASE(OptimizationTests) {
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Definition* def1 = new PhiInstr(0);
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Definition* def2 = new PhiInstr(0);
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UseVal* use1a = new UseVal(def1);
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UseVal* use1b = new UseVal(def1);
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EXPECT(use1a->Equals(use1b));
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UseVal* use2 = new UseVal(def2);
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EXPECT(!use2->Equals(use1a));
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ConstantVal* c1 = new ConstantVal(Bool::ZoneHandle(Bool::True()));
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ConstantVal* c2 = new ConstantVal(Bool::ZoneHandle(Bool::True()));
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EXPECT(c1->Equals(c2));
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ConstantVal* c3 = new ConstantVal(Object::ZoneHandle());
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ConstantVal* c4 = new ConstantVal(Object::ZoneHandle());
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EXPECT(c3->Equals(c4));
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EXPECT(!c3->Equals(c1));
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}
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} // namespace dart
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