mirror of
https://github.com/dart-lang/sdk
synced 2024-11-05 18:22:09 +00:00
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>
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "vm/globals.h"
|
|
#if defined(TARGET_ARCH_ARM64)
|
|
|
|
#include "vm/runtime_entry.h"
|
|
|
|
#include "vm/simulator.h"
|
|
#include "vm/stub_code.h"
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
#include "vm/compiler/assembler/assembler.h"
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
namespace dart {
|
|
|
|
#define __ assembler->
|
|
|
|
uword RuntimeEntry::GetEntryPoint() const {
|
|
// Compute the effective address. When running under the simulator,
|
|
// this is a redirection address that forces the simulator to call
|
|
// into the runtime system.
|
|
uword entry = reinterpret_cast<uword>(function());
|
|
#if defined(USING_SIMULATOR)
|
|
// Redirection to leaf runtime calls supports a maximum of 4 arguments passed
|
|
// in registers (maximum 2 double arguments for leaf float runtime calls).
|
|
ASSERT(argument_count() >= 0);
|
|
ASSERT(!is_leaf() || (!is_float() && (argument_count() <= 4)) ||
|
|
(argument_count() <= 2));
|
|
Simulator::CallKind call_kind =
|
|
is_leaf() ? (is_float() ? Simulator::kLeafFloatRuntimeCall
|
|
: Simulator::kLeafRuntimeCall)
|
|
: Simulator::kRuntimeCall;
|
|
entry =
|
|
Simulator::RedirectExternalReference(entry, call_kind, argument_count());
|
|
#endif
|
|
return entry;
|
|
}
|
|
|
|
} // namespace dart
|
|
|
|
#endif // defined TARGET_ARCH_ARM64
|