Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 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. |
| 4 | |
| 5 | #include "src/v8.h" |
| 6 | |
| 7 | #include "test/cctest/compiler/function-tester.h" |
| 8 | |
| 9 | #if V8_TURBOFAN_TARGET |
| 10 | |
| 11 | using namespace v8::internal; |
| 12 | using namespace v8::internal::compiler; |
| 13 | |
| 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()); |
| 18 | int frames_seen = 0; |
| 19 | JavaScriptFrame* topmost = it.frame(); |
| 20 | while (!it.done()) { |
| 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()); |
| 25 | frames_seen++; |
| 26 | it.Advance(); |
| 27 | } |
| 28 | CHECK_EQ(args[0]->ToInt32()->Value(), topmost->GetInlineCount()); |
| 29 | } |
| 30 | |
| 31 | |
| 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()); |
| 37 | } |
| 38 | |
| 39 | |
| 40 | TEST(SimpleInlining) { |
| 41 | FLAG_turbo_deoptimization = true; |
| 42 | FunctionTester T( |
| 43 | "(function(){" |
| 44 | "function foo(s) { AssertInlineCount(2); return s; };" |
| 45 | "function bar(s, t) { return foo(s); };" |
| 46 | "return bar;})();", |
| 47 | CompilationInfo::kInliningEnabled | |
| 48 | CompilationInfo::kContextSpecializing | |
| 49 | CompilationInfo::kTypingEnabled); |
| 50 | |
| 51 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 52 | T.CheckCall(T.Val(1), T.Val(1), T.Val(2)); |
| 53 | } |
| 54 | |
| 55 | |
| 56 | TEST(SimpleInliningDeopt) { |
| 57 | FLAG_turbo_deoptimization = true; |
| 58 | FunctionTester T( |
| 59 | "(function(){" |
| 60 | "function foo(s) { %DeoptimizeFunction(bar); return " |
| 61 | "s; };" |
| 62 | "function bar(s, t) { return foo(s); };" |
| 63 | "return bar;})();", |
| 64 | CompilationInfo::kInliningEnabled | |
| 65 | CompilationInfo::kContextSpecializing | |
| 66 | CompilationInfo::kTypingEnabled); |
| 67 | |
| 68 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 69 | T.CheckCall(T.Val(1), T.Val(1), T.Val(2)); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | TEST(SimpleInliningContext) { |
| 74 | FLAG_turbo_deoptimization = true; |
| 75 | FunctionTester T( |
| 76 | "(function () {" |
| 77 | "function foo(s) { AssertInlineCount(2); var x = 12; return s + x; };" |
| 78 | "function bar(s, t) { return foo(s); };" |
| 79 | "return bar;" |
| 80 | "})();", |
| 81 | CompilationInfo::kInliningEnabled | |
| 82 | CompilationInfo::kContextSpecializing | |
| 83 | CompilationInfo::kTypingEnabled); |
| 84 | |
| 85 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 86 | T.CheckCall(T.Val(13), T.Val(1), T.Val(2)); |
| 87 | } |
| 88 | |
| 89 | |
| 90 | TEST(SimpleInliningContextDeopt) { |
| 91 | FLAG_turbo_deoptimization = true; |
| 92 | FunctionTester T( |
| 93 | "(function () {" |
| 94 | "function foo(s) { " |
| 95 | " AssertInlineCount(2); %DeoptimizeFunction(bar); var x = 12;" |
| 96 | " return s + x;" |
| 97 | "};" |
| 98 | "function bar(s, t) { return foo(s); };" |
| 99 | "return bar;" |
| 100 | "})();", |
| 101 | CompilationInfo::kInliningEnabled | |
| 102 | CompilationInfo::kContextSpecializing | |
| 103 | CompilationInfo::kTypingEnabled); |
| 104 | |
| 105 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 106 | T.CheckCall(T.Val(13), T.Val(1), T.Val(2)); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | TEST(CaptureContext) { |
| 111 | FLAG_turbo_deoptimization = true; |
| 112 | FunctionTester T( |
| 113 | "var f = (function () {" |
| 114 | "var x = 42;" |
| 115 | "function bar(s) { return x + s; };" |
| 116 | "return (function (s) { return bar(s); });" |
| 117 | "})();" |
| 118 | "(function (s) { return f(s)})", |
| 119 | CompilationInfo::kInliningEnabled | |
| 120 | CompilationInfo::kContextSpecializing | |
| 121 | CompilationInfo::kTypingEnabled); |
| 122 | |
| 123 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 124 | T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined()); |
| 125 | } |
| 126 | |
| 127 | |
| 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; |
| 132 | FunctionTester T( |
| 133 | "var x = 42;" |
| 134 | "(function () {" |
| 135 | "function bar(s, t) { return eval(\"AssertInlineCount(1); x\") };" |
| 136 | "return bar;" |
| 137 | "})();", |
| 138 | CompilationInfo::kInliningEnabled | |
| 139 | CompilationInfo::kContextSpecializing | |
| 140 | CompilationInfo::kTypingEnabled); |
| 141 | |
| 142 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 143 | T.CheckCall(T.Val(42), T.Val("x"), T.undefined()); |
| 144 | } |
| 145 | |
| 146 | |
| 147 | TEST(InlineOmitArguments) { |
| 148 | FLAG_turbo_deoptimization = true; |
| 149 | FunctionTester T( |
| 150 | "(function () {" |
| 151 | "var x = 42;" |
| 152 | "function bar(s, t, u, v) { AssertInlineCount(2); return x + s; };" |
| 153 | "return (function (s,t) { return bar(s); });" |
| 154 | "})();", |
| 155 | CompilationInfo::kInliningEnabled | |
| 156 | CompilationInfo::kContextSpecializing | |
| 157 | CompilationInfo::kTypingEnabled); |
| 158 | |
| 159 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 160 | T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined()); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | TEST(InlineOmitArgumentsDeopt) { |
| 165 | FLAG_turbo_deoptimization = true; |
| 166 | FunctionTester T( |
| 167 | "(function () {" |
| 168 | "function foo(s,t,u,v) { AssertInlineCount(2); %DeoptimizeFunction(bar); " |
| 169 | "return baz(); };" |
| 170 | "function bar() { return foo(11); };" |
| 171 | "function baz() { return foo.arguments.length == 1 && " |
| 172 | " foo.arguments[0] == 11 ; }" |
| 173 | "return bar;" |
| 174 | "})();", |
| 175 | CompilationInfo::kInliningEnabled | |
| 176 | CompilationInfo::kContextSpecializing | |
| 177 | CompilationInfo::kTypingEnabled); |
| 178 | |
| 179 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 180 | T.CheckCall(T.true_value(), T.Val(12), T.Val(14)); |
| 181 | } |
| 182 | |
| 183 | |
| 184 | TEST(InlineSurplusArguments) { |
| 185 | FLAG_turbo_deoptimization = true; |
| 186 | FunctionTester T( |
| 187 | "(function () {" |
| 188 | "var x = 42;" |
| 189 | "function foo(s) { AssertInlineCount(2); return x + s; };" |
| 190 | "function bar(s,t) { return foo(s,t,13); };" |
| 191 | "return bar;" |
| 192 | "})();", |
| 193 | CompilationInfo::kInliningEnabled | |
| 194 | CompilationInfo::kContextSpecializing | |
| 195 | CompilationInfo::kTypingEnabled); |
| 196 | |
| 197 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 198 | T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined()); |
| 199 | } |
| 200 | |
| 201 | |
| 202 | TEST(InlineSurplusArgumentsDeopt) { |
| 203 | FLAG_turbo_deoptimization = true; |
| 204 | FunctionTester T( |
| 205 | "(function () {" |
| 206 | "function foo(s) { AssertInlineCount(2); %DeoptimizeFunction(bar); " |
| 207 | "return baz(); };" |
| 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; }" |
| 213 | "return bar;" |
| 214 | "})();", |
| 215 | CompilationInfo::kInliningEnabled | |
| 216 | CompilationInfo::kContextSpecializing | |
| 217 | CompilationInfo::kTypingEnabled); |
| 218 | |
| 219 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 220 | T.CheckCall(T.true_value(), T.Val(12), T.Val(14)); |
| 221 | } |
| 222 | |
| 223 | |
| 224 | TEST(InlineTwice) { |
| 225 | FLAG_turbo_deoptimization = true; |
| 226 | FunctionTester T( |
| 227 | "(function () {" |
| 228 | "var x = 42;" |
| 229 | "function bar(s) { AssertInlineCount(2); return x + s; };" |
| 230 | "return (function (s,t) { return bar(s) + bar(t); });" |
| 231 | "})();", |
| 232 | CompilationInfo::kInliningEnabled | |
| 233 | CompilationInfo::kContextSpecializing | |
| 234 | CompilationInfo::kTypingEnabled); |
| 235 | |
| 236 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 237 | T.CheckCall(T.Val(2 * 42 + 12 + 4), T.Val(12), T.Val(4)); |
| 238 | } |
| 239 | |
| 240 | |
| 241 | TEST(InlineTwiceDependent) { |
| 242 | FLAG_turbo_deoptimization = true; |
| 243 | FunctionTester T( |
| 244 | "(function () {" |
| 245 | "var x = 42;" |
| 246 | "function foo(s) { AssertInlineCount(2); return x + s; };" |
| 247 | "function bar(s,t) { return foo(foo(s)); };" |
| 248 | "return bar;" |
| 249 | "})();", |
| 250 | CompilationInfo::kInliningEnabled | |
| 251 | CompilationInfo::kContextSpecializing | |
| 252 | CompilationInfo::kTypingEnabled); |
| 253 | |
| 254 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 255 | T.CheckCall(T.Val(42 + 42 + 12), T.Val(12), T.Val(4)); |
| 256 | } |
| 257 | |
| 258 | |
| 259 | TEST(InlineTwiceDependentDiamond) { |
| 260 | FLAG_turbo_deoptimization = true; |
| 261 | FunctionTester T( |
| 262 | "(function () {" |
| 263 | "var x = 41;" |
| 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)); };" |
| 267 | "return bar;" |
| 268 | "})();", |
| 269 | CompilationInfo::kInliningEnabled | |
| 270 | CompilationInfo::kContextSpecializing | |
| 271 | CompilationInfo::kTypingEnabled); |
| 272 | |
| 273 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 274 | T.CheckCall(T.Val(-11), T.Val(11), T.Val(4)); |
| 275 | } |
| 276 | |
| 277 | |
| 278 | TEST(InlineTwiceDependentDiamondDifferent) { |
| 279 | FLAG_turbo_deoptimization = true; |
| 280 | FunctionTester T( |
| 281 | "(function () {" |
| 282 | "var x = 41;" |
| 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); };" |
| 286 | "return bar;" |
| 287 | "})();", |
| 288 | CompilationInfo::kInliningEnabled | |
| 289 | CompilationInfo::kContextSpecializing | |
| 290 | CompilationInfo::kTypingEnabled); |
| 291 | |
| 292 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 293 | T.CheckCall(T.Val(-329), T.Val(11), T.Val(4)); |
| 294 | } |
| 295 | |
| 296 | |
| 297 | TEST(InlineLoop) { |
| 298 | FLAG_turbo_deoptimization = true; |
| 299 | FunctionTester T( |
| 300 | "(function () {" |
| 301 | "var x = 41;" |
| 302 | "function foo(s) { AssertInlineCount(2); while (s > 0) {" |
| 303 | " s = s - 1; }; return s; };" |
| 304 | "function bar(s,t) { return foo(foo(s)); };" |
| 305 | "return bar;" |
| 306 | "})();", |
| 307 | CompilationInfo::kInliningEnabled | |
| 308 | CompilationInfo::kContextSpecializing | |
| 309 | CompilationInfo::kTypingEnabled); |
| 310 | |
| 311 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 312 | T.CheckCall(T.Val(0.0), T.Val(11), T.Val(4)); |
| 313 | } |
| 314 | |
| 315 | |
| 316 | TEST(InlineStrictIntoNonStrict) { |
| 317 | FLAG_turbo_deoptimization = true; |
| 318 | FunctionTester T( |
| 319 | "(function () {" |
| 320 | "var x = Object.create({}, { y: { value:42, writable:false } });" |
| 321 | "function foo(s) { 'use strict';" |
| 322 | " x.y = 9; };" |
| 323 | "function bar(s,t) { return foo(s); };" |
| 324 | "return bar;" |
| 325 | "})();", |
| 326 | CompilationInfo::kInliningEnabled | |
| 327 | CompilationInfo::kContextSpecializing | |
| 328 | CompilationInfo::kTypingEnabled); |
| 329 | |
| 330 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 331 | T.CheckThrows(T.undefined(), T.undefined()); |
| 332 | } |
| 333 | |
| 334 | |
| 335 | TEST(InlineNonStrictIntoStrict) { |
| 336 | FLAG_turbo_deoptimization = true; |
| 337 | FunctionTester T( |
| 338 | "(function () {" |
| 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); };" |
| 342 | "return bar;" |
| 343 | "})();", |
| 344 | CompilationInfo::kInliningEnabled | |
| 345 | CompilationInfo::kContextSpecializing | |
| 346 | CompilationInfo::kTypingEnabled); |
| 347 | |
| 348 | InstallAssertInlineCountHelper(CcTest::isolate()); |
| 349 | T.CheckCall(T.Val(42), T.undefined(), T.undefined()); |
| 350 | } |
| 351 | |
| 352 | |
| 353 | #endif // V8_TURBOFAN_TARGET |