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Issue 19528003: Unify SoftDeoptimize and Deoptimize hydrogen instructions (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Review feedback Created 7 years, 5 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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100 continue; 100 continue;
101 } 101 }
102 HDummyUse* dummy = new(graph()->zone()) HDummyUse(operand); 102 HDummyUse* dummy = new(graph()->zone()) HDummyUse(operand);
103 dummy->InsertBefore(instr); 103 dummy->InsertBefore(instr);
104 last_dummy = dummy; 104 last_dummy = dummy;
105 } 105 }
106 if (last_dummy == NULL) last_dummy = graph()->GetConstant1(); 106 if (last_dummy == NULL) last_dummy = graph()->GetConstant1();
107 instr->DeleteAndReplaceWith(last_dummy); 107 instr->DeleteAndReplaceWith(last_dummy);
108 continue; 108 continue;
109 } 109 }
110 if (instr->IsSoftDeoptimize()) { 110 if (instr->IsDeoptimize()) {
111 ASSERT(block->IsDeoptimizing()); 111 ASSERT(block->IsDeoptimizing());
112 nullify = true; 112 nullify = true;
113 } 113 }
114 } 114 }
115 } 115 }
116 } 116 }
117 117
118 118
119 void HPropagateDeoptimizingMarkPhase::Run() { 119 void HPropagateDeoptimizingMarkPhase::Run() {
120 // Skip this phase if there is nothing to be done anyway. 120 // Skip this phase if there is nothing to be done anyway.
121 if (!graph()->has_soft_deoptimize()) return; 121 if (!graph()->has_soft_deoptimize()) return;
122 MarkAsDeoptimizing(); 122 MarkAsDeoptimizing();
123 NullifyUnreachableInstructions(); 123 NullifyUnreachableInstructions();
124 } 124 }
125 125
126 } } // namespace v8::internal 126 } } // namespace v8::internal
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