Vyacheslav Egorov
5f490fabf7
Assembler now always knows whether LR contains return address or can be safely cloberred. TEST=tested through normal test suite Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-ffi-android-release-arm64-try,vm-ffi-android-release-arm-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-android-release-arm64-try Change-Id: I0b436509389cfd29ee413fd28930fb2d6b07616e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174468 Commit-Queue: Vyacheslav Egorov <vegorov@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
// Copyright (c) 2019, 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" // Needed here to get TARGET_ARCH_ARM64.
|
|
#if defined(TARGET_ARCH_ARM64)
|
|
|
|
#include "vm/compiler/assembler/assembler.h"
|
|
#include "vm/compiler/graph_intrinsifier.h"
|
|
|
|
namespace dart {
|
|
namespace compiler {
|
|
|
|
#define __ assembler->
|
|
|
|
intptr_t GraphIntrinsifier::ParameterSlotFromSp() {
|
|
return -1;
|
|
}
|
|
|
|
void GraphIntrinsifier::IntrinsicCallPrologue(Assembler* assembler) {
|
|
COMPILE_ASSERT(IsAbiPreservedRegister(CODE_REG));
|
|
COMPILE_ASSERT(!IsAbiPreservedRegister(ARGS_DESC_REG));
|
|
COMPILE_ASSERT(IsAbiPreservedRegister(CALLEE_SAVED_TEMP));
|
|
COMPILE_ASSERT(IsAbiPreservedRegister(CALLEE_SAVED_TEMP2));
|
|
COMPILE_ASSERT(CALLEE_SAVED_TEMP != CODE_REG);
|
|
COMPILE_ASSERT(CALLEE_SAVED_TEMP != ARGS_DESC_REG);
|
|
COMPILE_ASSERT(CALLEE_SAVED_TEMP2 != CODE_REG);
|
|
COMPILE_ASSERT(CALLEE_SAVED_TEMP2 != ARGS_DESC_REG);
|
|
|
|
__ Comment("IntrinsicCallPrologue");
|
|
SPILLS_RETURN_ADDRESS_FROM_LR_TO_REGISTER(__ mov(CALLEE_SAVED_TEMP, LR));
|
|
__ mov(CALLEE_SAVED_TEMP2, ARGS_DESC_REG);
|
|
}
|
|
|
|
void GraphIntrinsifier::IntrinsicCallEpilogue(Assembler* assembler) {
|
|
__ Comment("IntrinsicCallEpilogue");
|
|
RESTORES_RETURN_ADDRESS_FROM_REGISTER_TO_LR(__ mov(LR, CALLEE_SAVED_TEMP));
|
|
__ mov(ARGS_DESC_REG, CALLEE_SAVED_TEMP2);
|
|
}
|
|
|
|
#undef __
|
|
|
|
} // namespace compiler
|
|
} // namespace dart
|
|
|
|
#endif // defined(TARGET_ARCH_ARM64)
|