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https://github.com/dart-lang/sdk
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67f93d3840
- Fixes SIMD registers clobbered by write barrier on ARM64. - Moves code generation out of non-compiler directory. - Removes unnecessary building of Dart frames on leaf runtime calls. - Removes unnecessary Threads slots for write barrier Code objects. - Removes duplicate saves of SP in leaf runtime calls on ARM64 and RISC-V. - Avoids some redundant SP updates on RISC-V. TEST=ci Change-Id: Idb92127658edc90b320923ef3d882a7219a450ae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/236842 Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(TARGET_ARCH_RISCV32) || defined(TARGET_ARCH_RISCV64)
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#include "vm/runtime_entry.h"
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#include "vm/simulator.h"
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#include "vm/stub_code.h"
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#if !defined(DART_PRECOMPILED_RUNTIME)
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#include "vm/compiler/assembler/assembler.h"
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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namespace dart {
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#define __ assembler->
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uword RuntimeEntry::GetEntryPoint() const {
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// Compute the effective address. When running under the simulator,
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// this is a redirection address that forces the simulator to call
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// into the runtime system.
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uword entry = reinterpret_cast<uword>(function());
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#if defined(USING_SIMULATOR)
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// Redirection to leaf runtime calls supports a maximum of 4 arguments passed
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// in registers (maximum 2 double arguments for leaf float runtime calls).
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ASSERT(argument_count() >= 0);
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ASSERT(!is_leaf() || (!is_float() && (argument_count() <= 4)) ||
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(argument_count() <= 2));
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Simulator::CallKind call_kind =
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is_leaf() ? (is_float() ? Simulator::kLeafFloatRuntimeCall
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: Simulator::kLeafRuntimeCall)
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: Simulator::kRuntimeCall;
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entry =
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Simulator::RedirectExternalReference(entry, call_kind, argument_count());
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#endif
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return entry;
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_RISCV
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