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Issue 1669303002: Tests for deopt from finally block. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright 2016 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Flags: --allow-natives-syntax
6
7 (function DeoptimizeFinallyFallThrough() {
8 var global = 0;
9 function f() {
10 var a = 1;
11 try {
12 global = 1;
13 } finally {
14 global = 42;
15 %DeoptimizeNow();
16 }
17 return global + a;
18 }
19
20 f();
21 f();
22 %OptimizeFunctionOnNextCall(f);
23 assertEquals(43, f());
24 assertEquals(42, global);
25 })();
26
27 (function DeoptimizeFinallyReturn() {
28 var global = 0;
29 function f() {
30 try {
31 return 10;
32 } finally {
33 global = 42;
34 %DeoptimizeNow();
35 }
36 return 1;
37 }
38
39 f();
40 f();
41 %OptimizeFunctionOnNextCall(f);
42 assertEquals(10, f());
43 assertEquals(42, global);
44 })();
45
46 (function DeoptimizeFinallyReturnDoublyNested() {
47 var global = 0;
48 function f() {
49 try {
50 try {
51 return 10;
52 } finally {
53 global += 21;
54 %DeoptimizeNow();
55 }
56 } finally {
57 global += 21;
58 }
59 return 1;
60 }
61
62 f();
63 f();
64 %OptimizeFunctionOnNextCall(f);
65 global = 0;
66 assertEquals(10, f());
67 assertEquals(42, global);
68 })();
69
70 (function DeoptimizeOuterFinallyReturnDoublyNested() {
71 var global = 0;
72 function f() {
73 try {
74 try {
75 return 10;
76 } finally {
77 global += 21;
78 }
79 } finally {
80 global += 21;
81 %DeoptimizeNow();
82 }
83 return 1;
84 }
85
86 f();
87 f();
88 %OptimizeFunctionOnNextCall(f);
89 global = 0;
90 assertEquals(10, f());
91 assertEquals(42, global);
92 })();
93
94 (function DeoptimizeFinallyThrow() {
95 var global = 0;
96 function f() {
97 try {
98 global = 21;
99 throw 1;
100 global = 2;
101 } finally {
102 global += 21;
103 %DeoptimizeNow();
104 }
105 global = 3;
106 return 1;
107 }
108
109 try { f(); } catch(e) {}
110 try { f(); } catch(e) {}
111 %OptimizeFunctionOnNextCall(f);
112 assertThrowsEquals(f, 1);
113 assertEquals(42, global);
114 })();
115
116 (function DeoptimizeFinallyThrowNested() {
117 var global = 0;
118 function f() {
119 try {
120 try {
121 global = 10;
122 throw 1;
123 global = 2;
124 } finally {
125 global += 11;
126 %DeoptimizeNow();
127 }
128 global = 4;
129 } finally {
130 global += 21;
131 }
132 global = 3;
133 return 1;
134 }
135
136 try { f(); } catch(e) {}
137 try { f(); } catch(e) {}
138 %OptimizeFunctionOnNextCall(f);
139 assertThrowsEquals(f, 1);
140 assertEquals(42, global);
141 })();
142
143 (function DeoptimizeFinallyContinue() {
144 var global = 0;
145 function f() {
146 global = 0;
147 for (var i = 0; i < 2; i++) {
148 try {
149 if (i == 0) continue;
150 global += 10;
151 } finally {
152 global += 6;
153 %DeoptimizeNow();
154 }
155 global += 20;
156 }
157 return 1;
158 }
159
160 f();
161 f();
162 %OptimizeFunctionOnNextCall(f);
163 assertEquals(1, f());
164 assertEquals(42, global);
165 })();
166
167 (function DeoptimizeFinallyContinueNestedTry() {
168 var global = 0;
169 function f() {
170 global = 0;
171 for (var i = 0; i < 2; i++) {
172 try {
173 try {
174 if (i == 0) continue;
175 global += 5;
176 } finally {
177 global += 4;
178 %DeoptimizeNow();
179 }
180 global += 5;
181 } finally {
182 global += 2;
183 }
184 global += 20;
185 }
186 return 1;
187 }
188
189 f();
190 f();
191 %OptimizeFunctionOnNextCall(f);
192 assertEquals(1, f());
193 assertEquals(42, global);
194 })();
195
196 (function DeoptimizeFinallyBreak() {
197 var global = 0;
198 function f() {
199 global = 0;
200 for (var i = 0; i < 2; i++) {
201 try {
202 global += 20;
203 if (i == 0) break;
204 global += 5;
205 } finally {
206 global += 22;
207 %DeoptimizeNow();
208 }
209 global += 5;
210 }
211 return 1;
212 }
213
214 f();
215 f();
216 %OptimizeFunctionOnNextCall(f);
217 assertEquals(1, f());
218 assertEquals(42, global);
219 })();
220
221 (function DeoptimizeFinallyBreakNested() {
222 var global = 0;
223 function f() {
224 global = 0;
225 for (var i = 0; i < 2; i++) {
226 try {
227 try {
228 global += 20;
229 if (i == 0) break;
230 global += 5;
231 } finally {
232 global += 12;
233 %DeoptimizeNow();
234 }
235 global += 8;
236 } finally {
237 global += 10;
238 }
239 global += 5;
240 }
241 return 1;
242 }
243
244 f();
245 f();
246 %OptimizeFunctionOnNextCall(f);
247 assertEquals(1, f());
248 assertEquals(42, global);
249 })();
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