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// Copyright 2017 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "src/builtins/builtins-bigint-gen.h" #include "src/builtins/builtins-utils-gen.h" #include "src/builtins/builtins.h" #include "src/codegen/code-stub-assembler.h" namespace v8 { namespace internal { // https://tc39.github.io/proposal-bigint/#sec-to-big-int64 TF_BUILTIN(BigIntToI64, CodeStubAssembler) { if (!Is64()) { Unreachable(); return; } TNode<Object> value = CAST(Parameter(Descriptor::kArgument)); TNode<Context> context = CAST(Parameter(Descriptor::kContext)); TNode<BigInt> n = ToBigInt(context, value); TVARIABLE(UintPtrT, var_low); TVARIABLE(UintPtrT, var_high); BigIntToRawBytes(n, &var_low, &var_high); ReturnRaw(var_low.value()); } // https://tc39.github.io/proposal-bigint/#sec-to-big-int64 TF_BUILTIN(BigIntToI32Pair, CodeStubAssembler) { if (!Is32()) { Unreachable(); return; } TNode<Object> value = CAST(Parameter(Descriptor::kArgument)); TNode<Context> context = CAST(Parameter(Descriptor::kContext)); TNode<BigInt> bigint = ToBigInt(context, value); TVARIABLE(UintPtrT, var_low); TVARIABLE(UintPtrT, var_high); BigIntToRawBytes(bigint, &var_low, &var_high); Return(SloppyTNode<Object>(var_low.value()), SloppyTNode<Object>(var_high.value())); } // https://tc39.github.io/proposal-bigint/#sec-bigint-constructor-number-value TF_BUILTIN(I64ToBigInt, CodeStubAssembler) { if (!Is64()) { Unreachable(); return; } TNode<IntPtrT> argument = UncheckedCast<IntPtrT>(Parameter(Descriptor::kArgument)); Return(BigIntFromInt64(argument)); } // https://tc39.github.io/proposal-bigint/#sec-bigint-constructor-number-value TF_BUILTIN(I32PairToBigInt, CodeStubAssembler) { if (!Is32()) { Unreachable(); return; } TNode<IntPtrT> low = UncheckedCast<IntPtrT>(Parameter(Descriptor::kLow)); TNode<IntPtrT> high = UncheckedCast<IntPtrT>(Parameter(Descriptor::kHigh)); Return(BigIntFromInt32Pair(low, high)); } } // namespace internal } // namespace v8