| // Copyright 2007-2010 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <stdlib.h> |
| |
| #include "v8.h" |
| |
| #include "api.h" |
| #include "cctest.h" |
| #include "compilation-cache.h" |
| #include "debug.h" |
| #include "deoptimizer.h" |
| #include "isolate.h" |
| #include "platform.h" |
| #include "stub-cache.h" |
| |
| using ::v8::internal::Deoptimizer; |
| using ::v8::internal::EmbeddedVector; |
| using ::v8::internal::Handle; |
| using ::v8::internal::Isolate; |
| using ::v8::internal::JSFunction; |
| using ::v8::internal::OS; |
| using ::v8::internal::Object; |
| |
| // Size of temp buffer for formatting small strings. |
| #define SMALL_STRING_BUFFER_SIZE 80 |
| |
| // Utility class to set --allow-natives-syntax --always-opt and --nouse-inlining |
| // when constructed and return to their default state when destroyed. |
| class AlwaysOptimizeAllowNativesSyntaxNoInlining { |
| public: |
| AlwaysOptimizeAllowNativesSyntaxNoInlining() |
| : always_opt_(i::FLAG_always_opt), |
| allow_natives_syntax_(i::FLAG_allow_natives_syntax), |
| use_inlining_(i::FLAG_use_inlining) { |
| i::FLAG_always_opt = true; |
| i::FLAG_allow_natives_syntax = true; |
| i::FLAG_use_inlining = false; |
| } |
| |
| ~AlwaysOptimizeAllowNativesSyntaxNoInlining() { |
| i::FLAG_allow_natives_syntax = allow_natives_syntax_; |
| i::FLAG_always_opt = always_opt_; |
| i::FLAG_use_inlining = use_inlining_; |
| } |
| |
| private: |
| bool always_opt_; |
| bool allow_natives_syntax_; |
| bool use_inlining_; |
| }; |
| |
| |
| // Utility class to set --allow-natives-syntax and --nouse-inlining when |
| // constructed and return to their default state when destroyed. |
| class AllowNativesSyntaxNoInlining { |
| public: |
| AllowNativesSyntaxNoInlining() |
| : allow_natives_syntax_(i::FLAG_allow_natives_syntax), |
| use_inlining_(i::FLAG_use_inlining) { |
| i::FLAG_allow_natives_syntax = true; |
| i::FLAG_use_inlining = false; |
| } |
| |
| ~AllowNativesSyntaxNoInlining() { |
| i::FLAG_allow_natives_syntax = allow_natives_syntax_; |
| i::FLAG_use_inlining = use_inlining_; |
| } |
| |
| private: |
| bool allow_natives_syntax_; |
| bool use_inlining_; |
| }; |
| |
| |
| static Handle<JSFunction> GetJSFunction(v8::Handle<v8::Object> obj, |
| const char* property_name) { |
| v8::Local<v8::Function> fun = |
| v8::Local<v8::Function>::Cast(obj->Get(v8_str(property_name))); |
| return v8::Utils::OpenHandle(*fun); |
| } |
| |
| |
| TEST(DeoptimizeSimple) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| // Test lazy deoptimization of a simple function. |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "function h() { %DeoptimizeFunction(f); }" |
| "function g() { count++; h(); }" |
| "function f() { g(); };" |
| "f();" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| |
| // Test lazy deoptimization of a simple function. Call the function after the |
| // deoptimization while it is still activated further down the stack. |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "function g() { count++; %DeoptimizeFunction(f); f(false); }" |
| "function f(x) { if (x) { g(); } else { return } };" |
| "f(true);" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeSimpleWithArguments) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| // Test lazy deoptimization of a simple function with some arguments. |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "function h(x) { %DeoptimizeFunction(f); }" |
| "function g(x, y) { count++; h(x); }" |
| "function f(x, y, z) { g(1,x); y+z; };" |
| "f(1, \"2\", false);" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| |
| // Test lazy deoptimization of a simple function with some arguments. Call the |
| // function after the deoptimization while it is still activated further down |
| // the stack. |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "function g(x, y) { count++; %DeoptimizeFunction(f); f(false, 1, y); }" |
| "function f(x, y, z) { if (x) { g(x, y); } else { return y + z; } };" |
| "f(true, 1, \"2\");" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeSimpleNested) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| // Test lazy deoptimization of a simple function. Have a nested function call |
| // do the deoptimization. |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "var result = 0;" |
| "function h(x, y, z) { return x + y + z; }" |
| "function g(z) { count++; %DeoptimizeFunction(f); return z;}" |
| "function f(x,y,z) { return h(x, y, g(z)); };" |
| "result = f(1, 2, 3);" |
| "gc(); gc()"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(6, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| } |
| |
| |
| TEST(DeoptimizeRecursive) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| { |
| // Test lazy deoptimization of a simple function called recursively. Call |
| // the function recursively a number of times before deoptimizing it. |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "var calls = 0;" |
| "function g() { count++; %DeoptimizeFunction(f); }" |
| "function f(x) { calls++; if (x > 0) { f(x - 1); } else { g(); } };" |
| "f(10); gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(11, env->Global()->Get(v8_str("calls"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| |
| v8::Local<v8::Function> fun = |
| v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); |
| Handle<v8::internal::JSFunction> f = v8::Utils::OpenHandle(*fun); |
| } |
| |
| |
| TEST(DeoptimizeMultiple) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "var result = 0;" |
| "function g() { count++;" |
| " %DeoptimizeFunction(f1);" |
| " %DeoptimizeFunction(f2);" |
| " %DeoptimizeFunction(f3);" |
| " %DeoptimizeFunction(f4);}" |
| "function f4(x) { g(); };" |
| "function f3(x, y, z) { f4(); return x + y + z; };" |
| "function f2(x, y) { return x + f3(y + 1, y + 1, y + 1) + y; };" |
| "function f1(x) { return f2(x + 1, x + 1) + x; };" |
| "result = f1(1);" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(14, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeConstructor) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "function g() { count++;" |
| " %DeoptimizeFunction(f); }" |
| "function f() { g(); };" |
| "result = new f() instanceof f;" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK(env->Global()->Get(v8_str("result"))->IsTrue()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "var result = 0;" |
| "function g() { count++;" |
| " %DeoptimizeFunction(f); }" |
| "function f(x, y) { this.x = x; g(); this.y = y; };" |
| "result = new f(1, 2);" |
| "result = result.x + result.y;" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(3, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeConstructorMultiple) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| { |
| AlwaysOptimizeAllowNativesSyntaxNoInlining options; |
| CompileRun( |
| "var count = 0;" |
| "var result = 0;" |
| "function g() { count++;" |
| " %DeoptimizeFunction(f1);" |
| " %DeoptimizeFunction(f2);" |
| " %DeoptimizeFunction(f3);" |
| " %DeoptimizeFunction(f4);}" |
| "function f4(x) { this.result = x; g(); };" |
| "function f3(x, y, z) { this.result = new f4(x + y + z).result; };" |
| "function f2(x, y) {" |
| " this.result = x + new f3(y + 1, y + 1, y + 1).result + y; };" |
| "function f1(x) { this.result = new f2(x + 1, x + 1).result + x; };" |
| "result = new f1(1).result;" |
| "gc(); gc()"); |
| } |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(14, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationADDString) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| const char* f_source = "function f(x, y) { return x + y; };"; |
| |
| { |
| AllowNativesSyntaxNoInlining options; |
| // Compile function f and collect to type feedback to insert binary op stub |
| // call in the optimized code. |
| i::FLAG_prepare_always_opt = true; |
| CompileRun("var count = 0;" |
| "var result = 0;" |
| "var deopt = false;" |
| "function X() { };" |
| "X.prototype.toString = function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(f); } return 'an X'" |
| "};"); |
| CompileRun(f_source); |
| CompileRun("for (var i = 0; i < 5; i++) {" |
| " f('a+', new X());" |
| "};"); |
| |
| // Compile an optimized version of f. |
| i::FLAG_always_opt = true; |
| CompileRun(f_source); |
| CompileRun("f('a+', new X());"); |
| CHECK(!i::V8::UseCrankshaft() || |
| GetJSFunction(env->Global(), "f")->IsOptimized()); |
| |
| // Call f and force deoptimization while processing the binary operation. |
| CompileRun("deopt = true;" |
| "var result = f('a+', new X());" |
| "gc(); gc();"); |
| } |
| |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| v8::Handle<v8::Value> result = env->Global()->Get(v8_str("result")); |
| CHECK(result->IsString()); |
| v8::String::AsciiValue ascii(result); |
| CHECK_EQ("a+an X", *ascii); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| static void CompileConstructorWithDeoptimizingValueOf() { |
| CompileRun("var count = 0;" |
| "var result = 0;" |
| "var deopt = false;" |
| "function X() { };" |
| "X.prototype.valueOf = function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(f); } return 8" |
| "};"); |
| } |
| |
| |
| static void TestDeoptimizeBinaryOpHelper(LocalContext* env, |
| const char* binary_op) { |
| EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> f_source_buffer; |
| OS::SNPrintF(f_source_buffer, |
| "function f(x, y) { return x %s y; };", |
| binary_op); |
| char* f_source = f_source_buffer.start(); |
| |
| AllowNativesSyntaxNoInlining options; |
| // Compile function f and collect to type feedback to insert binary op stub |
| // call in the optimized code. |
| i::FLAG_prepare_always_opt = true; |
| CompileConstructorWithDeoptimizingValueOf(); |
| CompileRun(f_source); |
| CompileRun("for (var i = 0; i < 5; i++) {" |
| " f(8, new X());" |
| "};"); |
| |
| // Compile an optimized version of f. |
| i::FLAG_always_opt = true; |
| CompileRun(f_source); |
| CompileRun("f(7, new X());"); |
| CHECK(!i::V8::UseCrankshaft() || |
| GetJSFunction((*env)->Global(), "f")->IsOptimized()); |
| |
| // Call f and force deoptimization while processing the binary operation. |
| CompileRun("deopt = true;" |
| "var result = f(7, new X());" |
| "gc(); gc();"); |
| |
| CHECK(!GetJSFunction((*env)->Global(), "f")->IsOptimized()); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationADD) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| TestDeoptimizeBinaryOpHelper(&env, "+"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(15, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationSUB) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| TestDeoptimizeBinaryOpHelper(&env, "-"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(-1, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationMUL) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| TestDeoptimizeBinaryOpHelper(&env, "*"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(56, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationDIV) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| TestDeoptimizeBinaryOpHelper(&env, "/"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(0, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeBinaryOperationMOD) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| TestDeoptimizeBinaryOpHelper(&env, "%"); |
| |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(7, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeCompare) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| const char* f_source = "function f(x, y) { return x < y; };"; |
| |
| { |
| AllowNativesSyntaxNoInlining options; |
| // Compile function f and collect to type feedback to insert compare ic |
| // call in the optimized code. |
| i::FLAG_prepare_always_opt = true; |
| CompileRun("var count = 0;" |
| "var result = 0;" |
| "var deopt = false;" |
| "function X() { };" |
| "X.prototype.toString = function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(f); } return 'b'" |
| "};"); |
| CompileRun(f_source); |
| CompileRun("for (var i = 0; i < 5; i++) {" |
| " f('a', new X());" |
| "};"); |
| |
| // Compile an optimized version of f. |
| i::FLAG_always_opt = true; |
| CompileRun(f_source); |
| CompileRun("f('a', new X());"); |
| CHECK(!i::V8::UseCrankshaft() || |
| GetJSFunction(env->Global(), "f")->IsOptimized()); |
| |
| // Call f and force deoptimization while processing the comparison. |
| CompileRun("deopt = true;" |
| "var result = f('a', new X());" |
| "gc(); gc();"); |
| } |
| |
| CHECK(!GetJSFunction(env->Global(), "f")->IsOptimized()); |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(true, env->Global()->Get(v8_str("result"))->BooleanValue()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeLoadICStoreIC) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| // Functions to generate load/store/keyed load/keyed store IC calls. |
| const char* f1_source = "function f1(x) { return x.y; };"; |
| const char* g1_source = "function g1(x) { x.y = 1; };"; |
| const char* f2_source = "function f2(x, y) { return x[y]; };"; |
| const char* g2_source = "function g2(x, y) { x[y] = 1; };"; |
| |
| { |
| AllowNativesSyntaxNoInlining options; |
| // Compile functions and collect to type feedback to insert ic |
| // calls in the optimized code. |
| i::FLAG_prepare_always_opt = true; |
| CompileRun("var count = 0;" |
| "var result = 0;" |
| "var deopt = false;" |
| "function X() { };" |
| "X.prototype.__defineGetter__('y', function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(f1); };" |
| " return 13;" |
| "});" |
| "X.prototype.__defineSetter__('y', function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(g1); };" |
| "});" |
| "X.prototype.__defineGetter__('z', function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(f2); };" |
| " return 13;" |
| "});" |
| "X.prototype.__defineSetter__('z', function () {" |
| " if (deopt) { count++; %DeoptimizeFunction(g2); };" |
| "});"); |
| CompileRun(f1_source); |
| CompileRun(g1_source); |
| CompileRun(f2_source); |
| CompileRun(g2_source); |
| CompileRun("for (var i = 0; i < 5; i++) {" |
| " f1(new X());" |
| " g1(new X());" |
| " f2(new X(), 'z');" |
| " g2(new X(), 'z');" |
| "};"); |
| |
| // Compile an optimized version of the functions. |
| i::FLAG_always_opt = true; |
| CompileRun(f1_source); |
| CompileRun(g1_source); |
| CompileRun(f2_source); |
| CompileRun(g2_source); |
| CompileRun("f1(new X());"); |
| CompileRun("g1(new X());"); |
| CompileRun("f2(new X(), 'z');"); |
| CompileRun("g2(new X(), 'z');"); |
| if (i::V8::UseCrankshaft()) { |
| CHECK(GetJSFunction(env->Global(), "f1")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "g1")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "f2")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "g2")->IsOptimized()); |
| } |
| |
| // Call functions and force deoptimization while processing the ics. |
| CompileRun("deopt = true;" |
| "var result = f1(new X());" |
| "g1(new X());" |
| "f2(new X(), 'z');" |
| "g2(new X(), 'z');" |
| "gc(); gc();"); |
| } |
| |
| CHECK(!GetJSFunction(env->Global(), "f1")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "g1")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "f2")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "g2")->IsOptimized()); |
| CHECK_EQ(4, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(13, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |
| |
| |
| TEST(DeoptimizeLoadICStoreICNested) { |
| v8::HandleScope scope; |
| const char* extension_list[] = { "v8/gc" }; |
| v8::ExtensionConfiguration extensions(1, extension_list); |
| LocalContext env(&extensions); |
| |
| // Functions to generate load/store/keyed load/keyed store IC calls. |
| const char* f1_source = "function f1(x) { return x.y; };"; |
| const char* g1_source = "function g1(x) { x.y = 1; };"; |
| const char* f2_source = "function f2(x, y) { return x[y]; };"; |
| const char* g2_source = "function g2(x, y) { x[y] = 1; };"; |
| |
| { |
| AllowNativesSyntaxNoInlining options; |
| // Compile functions and collect to type feedback to insert ic |
| // calls in the optimized code. |
| i::FLAG_prepare_always_opt = true; |
| CompileRun("var count = 0;" |
| "var result = 0;" |
| "var deopt = false;" |
| "function X() { };" |
| "X.prototype.__defineGetter__('y', function () {" |
| " g1(this);" |
| " return 13;" |
| "});" |
| "X.prototype.__defineSetter__('y', function () {" |
| " f2(this, 'z');" |
| "});" |
| "X.prototype.__defineGetter__('z', function () {" |
| " g2(this, 'z');" |
| "});" |
| "X.prototype.__defineSetter__('z', function () {" |
| " if (deopt) {" |
| " count++;" |
| " %DeoptimizeFunction(f1);" |
| " %DeoptimizeFunction(g1);" |
| " %DeoptimizeFunction(f2);" |
| " %DeoptimizeFunction(g2); };" |
| "});"); |
| CompileRun(f1_source); |
| CompileRun(g1_source); |
| CompileRun(f2_source); |
| CompileRun(g2_source); |
| CompileRun("for (var i = 0; i < 5; i++) {" |
| " f1(new X());" |
| " g1(new X());" |
| " f2(new X(), 'z');" |
| " g2(new X(), 'z');" |
| "};"); |
| |
| // Compile an optimized version of the functions. |
| i::FLAG_always_opt = true; |
| CompileRun(f1_source); |
| CompileRun(g1_source); |
| CompileRun(f2_source); |
| CompileRun(g2_source); |
| CompileRun("f1(new X());"); |
| CompileRun("g1(new X());"); |
| CompileRun("f2(new X(), 'z');"); |
| CompileRun("g2(new X(), 'z');"); |
| if (i::V8::UseCrankshaft()) { |
| CHECK(GetJSFunction(env->Global(), "f1")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "g1")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "f2")->IsOptimized()); |
| CHECK(GetJSFunction(env->Global(), "g2")->IsOptimized()); |
| } |
| |
| // Call functions and force deoptimization while processing the ics. |
| CompileRun("deopt = true;" |
| "var result = f1(new X());" |
| "gc(); gc();"); |
| } |
| |
| CHECK(!GetJSFunction(env->Global(), "f1")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "g1")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "f2")->IsOptimized()); |
| CHECK(!GetJSFunction(env->Global(), "g2")->IsOptimized()); |
| CHECK_EQ(1, env->Global()->Get(v8_str("count"))->Int32Value()); |
| CHECK_EQ(13, env->Global()->Get(v8_str("result"))->Int32Value()); |
| CHECK_EQ(0, Deoptimizer::GetDeoptimizedCodeCount(Isolate::Current())); |
| } |