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Issue 1697503002: [turbofan] Remove support for LazyBailout operators. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@local_trycatch-test-enable
Patch Set: Rebased. Created 4 years, 10 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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/full-codegen/full-codegen.h" 5 #include "src/full-codegen/full-codegen.h"
6 6
7 #include "src/ast/ast.h" 7 #include "src/ast/ast.h"
8 #include "src/ast/ast-numbering.h" 8 #include "src/ast/ast-numbering.h"
9 #include "src/ast/prettyprinter.h" 9 #include "src/ast/prettyprinter.h"
10 #include "src/ast/scopeinfo.h" 10 #include "src/ast/scopeinfo.h"
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1161 1161
1162 // The try block adds a handler to the exception handler chain before 1162 // The try block adds a handler to the exception handler chain before
1163 // entering, and removes it again when exiting normally. If an exception 1163 // entering, and removes it again when exiting normally. If an exception
1164 // is thrown during execution of the try block, the handler is consumed 1164 // is thrown during execution of the try block, the handler is consumed
1165 // and control is passed to the catch block with the exception in the 1165 // and control is passed to the catch block with the exception in the
1166 // result register. 1166 // result register.
1167 1167
1168 Label try_entry, handler_entry, exit; 1168 Label try_entry, handler_entry, exit;
1169 __ jmp(&try_entry); 1169 __ jmp(&try_entry);
1170 __ bind(&handler_entry); 1170 __ bind(&handler_entry);
1171 PrepareForBailoutForId(stmt->HandlerId(), NO_REGISTERS);
1172 ClearPendingMessage(); 1171 ClearPendingMessage();
1173 1172
1174 // Exception handler code, the exception is in the result register. 1173 // Exception handler code, the exception is in the result register.
1175 // Extend the context before executing the catch block. 1174 // Extend the context before executing the catch block.
1176 { Comment cmnt(masm_, "[ Extend catch context"); 1175 { Comment cmnt(masm_, "[ Extend catch context");
1177 __ Push(stmt->variable()->name()); 1176 __ Push(stmt->variable()->name());
1178 __ Push(result_register()); 1177 __ Push(result_register());
1179 PushFunctionArgumentForContextAllocation(); 1178 PushFunctionArgumentForContextAllocation();
1180 __ CallRuntime(Runtime::kPushCatchContext); 1179 __ CallRuntime(Runtime::kPushCatchContext);
1181 StoreToFrameField(StandardFrameConstants::kContextOffset, 1180 StoreToFrameField(StandardFrameConstants::kContextOffset,
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1230 // we push the exception and continuation token and jump to the 1229 // we push the exception and continuation token and jump to the
1231 // finally block (which will again dispatch based on the token once 1230 // finally block (which will again dispatch based on the token once
1232 // it is finished). 1231 // it is finished).
1233 1232
1234 Label try_entry, handler_entry, finally_entry; 1233 Label try_entry, handler_entry, finally_entry;
1235 DeferredCommands deferred(this, &finally_entry); 1234 DeferredCommands deferred(this, &finally_entry);
1236 1235
1237 // Jump to try-handler setup and try-block code. 1236 // Jump to try-handler setup and try-block code.
1238 __ jmp(&try_entry); 1237 __ jmp(&try_entry);
1239 __ bind(&handler_entry); 1238 __ bind(&handler_entry);
1240 PrepareForBailoutForId(stmt->HandlerId(), NO_REGISTERS);
1241 1239
1242 // Exception handler code. This code is only executed when an exception 1240 // Exception handler code. This code is only executed when an exception
1243 // is thrown. Record the continuation and jump to the finally block. 1241 // is thrown. Record the continuation and jump to the finally block.
1244 { 1242 {
1245 Comment cmt_handler(masm(), "[ Finally handler"); 1243 Comment cmt_handler(masm(), "[ Finally handler");
1246 deferred.RecordThrow(); 1244 deferred.RecordThrow();
1247 } 1245 }
1248 1246
1249 // Set up try handler. 1247 // Set up try handler.
1250 __ bind(&try_entry); 1248 __ bind(&try_entry);
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1794 return var->mode() == CONST_LEGACY || var->scope()->is_nonlinear() || 1792 return var->mode() == CONST_LEGACY || var->scope()->is_nonlinear() ||
1795 var->initializer_position() >= proxy->position(); 1793 var->initializer_position() >= proxy->position();
1796 } 1794 }
1797 1795
1798 1796
1799 #undef __ 1797 #undef __
1800 1798
1801 1799
1802 } // namespace internal 1800 } // namespace internal
1803 } // namespace v8 1801 } // namespace v8
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