regis@google.com
8f62a87598
Support leaf float runtime calls in ARM simulator. Enable previously failing tests. R=zra@google.com Review URL: https://codereview.chromium.org//16638012 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23868 260f80e4-7a28-3924-810f-c04153c831b5
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
// Copyright (c) 2011, 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_ARM)
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#include "vm/runtime_entry.h"
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#include "vm/assembler.h"
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#include "vm/simulator.h"
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#include "vm/stub_code.h"
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namespace dart {
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#define __ assembler->
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// Generate code to call into the stub which will call the runtime
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// function. Input for the stub is as follows:
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// SP : points to the arguments and return value array.
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// R5 : address of the runtime function to call.
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// R4 : number of arguments to the call.
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void RuntimeEntry::Call(Assembler* assembler) 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 = GetEntryPoint();
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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() ||
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(!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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if (is_leaf()) {
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ExternalLabel label(name(), entry);
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__ BranchLink(&label);
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} else {
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__ LoadImmediate(R5, entry);
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__ LoadImmediate(R4, argument_count());
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__ BranchLink(&StubCode::CallToRuntimeLabel());
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}
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_ARM
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