Initial implementation of a flow-graph builder for Dart's AST.
Visit the AST and generate an instruction (ie, not basic-block) flow
graph.
The flow graph for the simple function:
main() {
var f = 1;
var n = 5;
while (n > 0) {
f = f * n;
n = n - 1;
}
print(f);
}
is:
1: StoreLocal(f, #1)
2: StoreLocal(n, #5)
3: [join]
4: t0 <-LoadLocal(n)
5: t0 <-InstanceCall(>, t0, #0)
6: if t0 goto(7, 15)
7: [target]
8: t0 <-LoadLocal(f)
9: t1 <-LoadLocal(n)
10: t0 <-InstanceCall(*, t0, t1)
11: StoreLocal(f, t0)
12: t0 <-LoadLocal(n)
13: t0 <-InstanceCall(-, t0, #1)
14: StoreLocal(n, t0) goto 3
15: [target]
16: t0 <-LoadLocal(f)
17: StaticCall(print, t0)
18: return #null
BUG=
TEST=
Review URL: https://chromiumcodereview.appspot.com//9414003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4460 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-22 15:20:13 +00:00
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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2011-10-05 05:20:07 +00:00
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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_IA32)
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#include "vm/assembler.h"
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#include "vm/instructions.h"
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2014-02-10 12:18:06 +00:00
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#include "vm/object.h"
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2011-10-05 05:20:07 +00:00
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#include "vm/stub_code.h"
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#include "vm/unit_test.h"
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2014-02-10 12:18:06 +00:00
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#include "vm/virtual_memory.h"
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2011-10-05 05:20:07 +00:00
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namespace dart {
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#define __ assembler->
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ASSEMBLER_TEST_GENERATE(Call, assembler) {
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2015-09-19 11:21:09 +00:00
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__ call(&StubCode::InvokeDartCode_entry()->label());
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2011-10-05 05:20:07 +00:00
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__ ret();
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}
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2013-02-15 23:55:31 +00:00
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ASSEMBLER_TEST_RUN(Call, test) {
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CallPattern call(test->entry());
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2015-08-05 08:18:35 +00:00
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EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
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2012-08-10 23:33:37 +00:00
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call.TargetAddress());
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2011-10-05 05:20:07 +00:00
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_IA32
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