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/compiler/operator.h" 6 7 #include <limits> 8 9 namespace v8 { 10 namespace internal { 11 namespace compiler { 12 13 namespace { 14 15 template <typename N> 16 V8_INLINE N CheckRange(size_t val) { 17 // The getters on Operator for input and output counts currently return int. 18 // Thus check that the given value fits in the integer range. 19 // TODO(titzer): Remove this check once the getters return size_t. 20 CHECK_LE(val, std::min(static_cast<size_t>(std::numeric_limits<N>::max()), 21 static_cast<size_t>(kMaxInt))); 22 return static_cast<N>(val); 23 } 24 25 } // namespace 26 27 Operator::Operator(Opcode opcode, Properties properties, const char* mnemonic, 28 size_t value_in, size_t effect_in, size_t control_in, 29 size_t value_out, size_t effect_out, size_t control_out) 30 : mnemonic_(mnemonic), 31 opcode_(opcode), 32 properties_(properties), 33 value_in_(CheckRange<uint32_t>(value_in)), 34 effect_in_(CheckRange<uint32_t>(effect_in)), 35 control_in_(CheckRange<uint32_t>(control_in)), 36 value_out_(CheckRange<uint32_t>(value_out)), 37 effect_out_(CheckRange<uint8_t>(effect_out)), 38 control_out_(CheckRange<uint32_t>(control_out)) {} 39 40 std::ostream& operator<<(std::ostream& os, const Operator& op) { 41 op.PrintTo(os); 42 return os; 43 } 44 45 void Operator::PrintToImpl(std::ostream& os, PrintVerbosity verbose) const { 46 os << mnemonic(); 47 } 48 49 void Operator::PrintPropsTo(std::ostream& os) const { 50 std::string separator = ""; 51 52 #define PRINT_PROP_IF_SET(name) \ 53 if (HasProperty(Operator::k##name)) { \ 54 os << separator; \ 55 os << #name; \ 56 separator = ", "; \ 57 } 58 OPERATOR_PROPERTY_LIST(PRINT_PROP_IF_SET) 59 #undef PRINT_PROP_IF_SET 60 } 61 62 } // namespace compiler 63 } // namespace internal 64 } // namespace v8 65
