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Issue 1153483002: [turbofan] Enable deoptimization for non-asm.js TurboFan code. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix Michis comment. REBASE Created 5 years, 7 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/arguments.h" 7 #include "src/arguments.h"
8 #include "src/deoptimizer.h" 8 #include "src/deoptimizer.h"
9 #include "src/full-codegen.h" 9 #include "src/full-codegen.h"
10 #include "src/runtime/runtime-utils.h" 10 #include "src/runtime/runtime-utils.h"
11 #include "src/snapshot/natives.h" 11 #include "src/snapshot/natives.h"
12 12
13 namespace v8 { 13 namespace v8 {
14 namespace internal { 14 namespace internal {
15 15
16 RUNTIME_FUNCTION(Runtime_DeoptimizeFunction) { 16 RUNTIME_FUNCTION(Runtime_DeoptimizeFunction) {
17 HandleScope scope(isolate); 17 HandleScope scope(isolate);
18 DCHECK(args.length() == 1); 18 DCHECK(args.length() == 1);
19 CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); 19 CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
20 if (!function->IsOptimized()) return isolate->heap()->undefined_value(); 20 if (!function->IsOptimized()) return isolate->heap()->undefined_value();
21 21
22 // TODO(turbofan): Deoptimization is not supported yet. 22 // TODO(turbofan): Deoptimization is not supported yet.
23 if (function->code()->is_turbofanned() && !FLAG_turbo_deoptimization) { 23 if (function->code()->is_turbofanned() &&
24 function->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) {
24 return isolate->heap()->undefined_value(); 25 return isolate->heap()->undefined_value();
25 } 26 }
26 27
27 Deoptimizer::DeoptimizeFunction(*function); 28 Deoptimizer::DeoptimizeFunction(*function);
28 29
29 return isolate->heap()->undefined_value(); 30 return isolate->heap()->undefined_value();
30 } 31 }
31 32
32 33
33 RUNTIME_FUNCTION(Runtime_DeoptimizeNow) { 34 RUNTIME_FUNCTION(Runtime_DeoptimizeNow) {
34 HandleScope scope(isolate); 35 HandleScope scope(isolate);
35 DCHECK(args.length() == 0); 36 DCHECK(args.length() == 0);
36 37
37 Handle<JSFunction> function; 38 Handle<JSFunction> function;
38 39
39 // If the argument is 'undefined', deoptimize the topmost 40 // If the argument is 'undefined', deoptimize the topmost
40 // function. 41 // function.
41 JavaScriptFrameIterator it(isolate); 42 JavaScriptFrameIterator it(isolate);
42 while (!it.done()) { 43 while (!it.done()) {
43 if (it.frame()->is_java_script()) { 44 if (it.frame()->is_java_script()) {
44 function = Handle<JSFunction>(it.frame()->function()); 45 function = Handle<JSFunction>(it.frame()->function());
45 break; 46 break;
46 } 47 }
47 } 48 }
48 if (function.is_null()) return isolate->heap()->undefined_value(); 49 if (function.is_null()) return isolate->heap()->undefined_value();
49 50
50 if (!function->IsOptimized()) return isolate->heap()->undefined_value(); 51 if (!function->IsOptimized()) return isolate->heap()->undefined_value();
51 52
52 // TODO(turbofan): Deoptimization is not supported yet. 53 // TODO(turbofan): Deoptimization is not supported yet.
53 if (function->code()->is_turbofanned() && !FLAG_turbo_deoptimization) { 54 if (function->code()->is_turbofanned() &&
55 function->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) {
54 return isolate->heap()->undefined_value(); 56 return isolate->heap()->undefined_value();
55 } 57 }
56 58
57 Deoptimizer::DeoptimizeFunction(*function); 59 Deoptimizer::DeoptimizeFunction(*function);
58 60
59 return isolate->heap()->undefined_value(); 61 return isolate->heap()->undefined_value();
60 } 62 }
61 63
62 64
63 RUNTIME_FUNCTION(Runtime_RunningInSimulator) { 65 RUNTIME_FUNCTION(Runtime_RunningInSimulator) {
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494 RUNTIME_FUNCTION(Runtime_HasFixed##Type##Elements) { \ 496 RUNTIME_FUNCTION(Runtime_HasFixed##Type##Elements) { \
495 CONVERT_ARG_CHECKED(JSObject, obj, 0); \ 497 CONVERT_ARG_CHECKED(JSObject, obj, 0); \
496 return isolate->heap()->ToBoolean(obj->HasFixed##Type##Elements()); \ 498 return isolate->heap()->ToBoolean(obj->HasFixed##Type##Elements()); \
497 } 499 }
498 500
499 TYPED_ARRAYS(FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION) 501 TYPED_ARRAYS(FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION)
500 502
501 #undef FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION 503 #undef FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION
502 } // namespace internal 504 } // namespace internal
503 } // namespace v8 505 } // namespace v8
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