1 // Copyright 2014 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.
7 #include "test/cctest/compiler/function-tester.h"
11 using namespace v8::internal;
12 using namespace v8::internal::compiler;
14 // Helper to determine inline count via JavaScriptFrame::GetInlineCount.
15 // Note that a count of 1 indicates that no inlining has occured.
16 static void AssertInlineCount(const v8::FunctionCallbackInfo<v8::Value>& args) {
17 StackTraceFrameIterator it(CcTest::i_isolate());
19 JavaScriptFrame* topmost = it.frame();
21 JavaScriptFrame* frame = it.frame();
22 PrintF("%d %s, inline count: %d\n", frames_seen,
23 frame->function()->shared()->DebugName()->ToCString().get(),
24 frame->GetInlineCount());
28 CHECK_EQ(args[0]->ToInt32()->Value(), topmost->GetInlineCount());
32 static void InstallAssertInlineCountHelper(v8::Isolate* isolate) {
33 v8::Local<v8::Context> context = isolate->GetCurrentContext();
34 v8::Local<v8::FunctionTemplate> t =
35 v8::FunctionTemplate::New(isolate, AssertInlineCount);
36 context->Global()->Set(v8_str("AssertInlineCount"), t->GetFunction());
40 TEST(SimpleInlining) {
41 FLAG_turbo_deoptimization = true;
44 "function foo(s) { AssertInlineCount(2); return s; };"
45 "function bar(s, t) { return foo(s); };"
47 CompilationInfo::kInliningEnabled |
48 CompilationInfo::kContextSpecializing |
49 CompilationInfo::kTypingEnabled);
51 InstallAssertInlineCountHelper(CcTest::isolate());
52 T.CheckCall(T.Val(1), T.Val(1), T.Val(2));
56 TEST(SimpleInliningDeopt) {
57 FLAG_turbo_deoptimization = true;
60 "function foo(s) { %DeoptimizeFunction(bar); return "
62 "function bar(s, t) { return foo(s); };"
64 CompilationInfo::kInliningEnabled |
65 CompilationInfo::kContextSpecializing |
66 CompilationInfo::kTypingEnabled);
68 InstallAssertInlineCountHelper(CcTest::isolate());
69 T.CheckCall(T.Val(1), T.Val(1), T.Val(2));
73 TEST(SimpleInliningContext) {
74 FLAG_turbo_deoptimization = true;
77 "function foo(s) { AssertInlineCount(2); var x = 12; return s + x; };"
78 "function bar(s, t) { return foo(s); };"
81 CompilationInfo::kInliningEnabled |
82 CompilationInfo::kContextSpecializing |
83 CompilationInfo::kTypingEnabled);
85 InstallAssertInlineCountHelper(CcTest::isolate());
86 T.CheckCall(T.Val(13), T.Val(1), T.Val(2));
90 TEST(SimpleInliningContextDeopt) {
91 FLAG_turbo_deoptimization = true;
95 " AssertInlineCount(2); %DeoptimizeFunction(bar); var x = 12;"
98 "function bar(s, t) { return foo(s); };"
101 CompilationInfo::kInliningEnabled |
102 CompilationInfo::kContextSpecializing |
103 CompilationInfo::kTypingEnabled);
105 InstallAssertInlineCountHelper(CcTest::isolate());
106 T.CheckCall(T.Val(13), T.Val(1), T.Val(2));
110 TEST(CaptureContext) {
111 FLAG_turbo_deoptimization = true;
113 "var f = (function () {"
115 "function bar(s) { return x + s; };"
116 "return (function (s) { return bar(s); });"
118 "(function (s) { return f(s)})",
119 CompilationInfo::kInliningEnabled |
120 CompilationInfo::kContextSpecializing |
121 CompilationInfo::kTypingEnabled);
123 InstallAssertInlineCountHelper(CcTest::isolate());
124 T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
128 // TODO(sigurds) For now we do not inline any native functions. If we do at
129 // some point, change this test.
130 TEST(DontInlineEval) {
131 FLAG_turbo_deoptimization = true;
135 "function bar(s, t) { return eval(\"AssertInlineCount(1); x\") };"
138 CompilationInfo::kInliningEnabled |
139 CompilationInfo::kContextSpecializing |
140 CompilationInfo::kTypingEnabled);
142 InstallAssertInlineCountHelper(CcTest::isolate());
143 T.CheckCall(T.Val(42), T.Val("x"), T.undefined());
147 TEST(InlineOmitArguments) {
148 FLAG_turbo_deoptimization = true;
152 "function bar(s, t, u, v) { AssertInlineCount(2); return x + s; };"
153 "return (function (s,t) { return bar(s); });"
155 CompilationInfo::kInliningEnabled |
156 CompilationInfo::kContextSpecializing |
157 CompilationInfo::kTypingEnabled);
159 InstallAssertInlineCountHelper(CcTest::isolate());
160 T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
164 TEST(InlineOmitArgumentsDeopt) {
165 FLAG_turbo_deoptimization = true;
168 "function foo(s,t,u,v) { AssertInlineCount(2); %DeoptimizeFunction(bar); "
170 "function bar() { return foo(11); };"
171 "function baz() { return foo.arguments.length == 1 && "
172 " foo.arguments[0] == 11 ; }"
175 CompilationInfo::kInliningEnabled |
176 CompilationInfo::kContextSpecializing |
177 CompilationInfo::kTypingEnabled);
179 InstallAssertInlineCountHelper(CcTest::isolate());
180 T.CheckCall(T.true_value(), T.Val(12), T.Val(14));
184 TEST(InlineSurplusArguments) {
185 FLAG_turbo_deoptimization = true;
189 "function foo(s) { AssertInlineCount(2); return x + s; };"
190 "function bar(s,t) { return foo(s,t,13); };"
193 CompilationInfo::kInliningEnabled |
194 CompilationInfo::kContextSpecializing |
195 CompilationInfo::kTypingEnabled);
197 InstallAssertInlineCountHelper(CcTest::isolate());
198 T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
202 TEST(InlineSurplusArgumentsDeopt) {
203 FLAG_turbo_deoptimization = true;
206 "function foo(s) { AssertInlineCount(2); %DeoptimizeFunction(bar); "
208 "function bar() { return foo(13, 14, 15); };"
209 "function baz() { return foo.arguments.length == 3 && "
210 " foo.arguments[0] == 13 && "
211 " foo.arguments[1] == 14 && "
212 " foo.arguments[2] == 15; }"
215 CompilationInfo::kInliningEnabled |
216 CompilationInfo::kContextSpecializing |
217 CompilationInfo::kTypingEnabled);
219 InstallAssertInlineCountHelper(CcTest::isolate());
220 T.CheckCall(T.true_value(), T.Val(12), T.Val(14));
225 FLAG_turbo_deoptimization = true;
229 "function bar(s) { AssertInlineCount(2); return x + s; };"
230 "return (function (s,t) { return bar(s) + bar(t); });"
232 CompilationInfo::kInliningEnabled |
233 CompilationInfo::kContextSpecializing |
234 CompilationInfo::kTypingEnabled);
236 InstallAssertInlineCountHelper(CcTest::isolate());
237 T.CheckCall(T.Val(2 * 42 + 12 + 4), T.Val(12), T.Val(4));
241 TEST(InlineTwiceDependent) {
242 FLAG_turbo_deoptimization = true;
246 "function foo(s) { AssertInlineCount(2); return x + s; };"
247 "function bar(s,t) { return foo(foo(s)); };"
250 CompilationInfo::kInliningEnabled |
251 CompilationInfo::kContextSpecializing |
252 CompilationInfo::kTypingEnabled);
254 InstallAssertInlineCountHelper(CcTest::isolate());
255 T.CheckCall(T.Val(42 + 42 + 12), T.Val(12), T.Val(4));
259 TEST(InlineTwiceDependentDiamond) {
260 FLAG_turbo_deoptimization = true;
264 "function foo(s) { AssertInlineCount(2); if (s % 2 == 0) {"
265 " return x - s } else { return x + s; } };"
266 "function bar(s,t) { return foo(foo(s)); };"
269 CompilationInfo::kInliningEnabled |
270 CompilationInfo::kContextSpecializing |
271 CompilationInfo::kTypingEnabled);
273 InstallAssertInlineCountHelper(CcTest::isolate());
274 T.CheckCall(T.Val(-11), T.Val(11), T.Val(4));
278 TEST(InlineTwiceDependentDiamondDifferent) {
279 FLAG_turbo_deoptimization = true;
283 "function foo(s,t) { AssertInlineCount(2); if (s % 2 == 0) {"
284 " return x - s * t } else { return x + s * t; } };"
285 "function bar(s,t) { return foo(foo(s, 3), 5); };"
288 CompilationInfo::kInliningEnabled |
289 CompilationInfo::kContextSpecializing |
290 CompilationInfo::kTypingEnabled);
292 InstallAssertInlineCountHelper(CcTest::isolate());
293 T.CheckCall(T.Val(-329), T.Val(11), T.Val(4));
298 FLAG_turbo_deoptimization = true;
302 "function foo(s) { AssertInlineCount(2); while (s > 0) {"
303 " s = s - 1; }; return s; };"
304 "function bar(s,t) { return foo(foo(s)); };"
307 CompilationInfo::kInliningEnabled |
308 CompilationInfo::kContextSpecializing |
309 CompilationInfo::kTypingEnabled);
311 InstallAssertInlineCountHelper(CcTest::isolate());
312 T.CheckCall(T.Val(0.0), T.Val(11), T.Val(4));
316 TEST(InlineStrictIntoNonStrict) {
317 FLAG_turbo_deoptimization = true;
320 "var x = Object.create({}, { y: { value:42, writable:false } });"
321 "function foo(s) { 'use strict';"
323 "function bar(s,t) { return foo(s); };"
326 CompilationInfo::kInliningEnabled |
327 CompilationInfo::kContextSpecializing |
328 CompilationInfo::kTypingEnabled);
330 InstallAssertInlineCountHelper(CcTest::isolate());
331 T.CheckThrows(T.undefined(), T.undefined());
335 TEST(InlineNonStrictIntoStrict) {
336 FLAG_turbo_deoptimization = true;
339 "var x = Object.create({}, { y: { value:42, writable:false } });"
340 "function foo(s) { x.y = 9; return x.y; };"
341 "function bar(s,t) { \'use strict\'; return foo(s); };"
344 CompilationInfo::kInliningEnabled |
345 CompilationInfo::kContextSpecializing |
346 CompilationInfo::kTypingEnabled);
348 InstallAssertInlineCountHelper(CcTest::isolate());
349 T.CheckCall(T.Val(42), T.undefined(), T.undefined());
353 #endif // V8_TURBOFAN_TARGET