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Issue 1192103004: VM: New calling convention for generated code. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: fixed comments Created 5 years, 3 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/globals.h" 5 #include "vm/globals.h"
6 #if defined(TARGET_ARCH_IA32) 6 #if defined(TARGET_ARCH_IA32)
7 7
8 #include "vm/assembler.h" 8 #include "vm/assembler.h"
9 #include "vm/instructions.h" 9 #include "vm/instructions.h"
10 #include "vm/object.h" 10 #include "vm/object.h"
11 #include "vm/stub_code.h" 11 #include "vm/stub_code.h"
12 #include "vm/unit_test.h" 12 #include "vm/unit_test.h"
13 #include "vm/virtual_memory.h" 13 #include "vm/virtual_memory.h"
14 14
15 namespace dart { 15 namespace dart {
16 16
17 #define __ assembler-> 17 #define __ assembler->
18 18
19 ASSEMBLER_TEST_GENERATE(Call, assembler) { 19 ASSEMBLER_TEST_GENERATE(Call, assembler) {
20 __ Call(*StubCode::InvokeDartCode_entry()); 20 __ call(&StubCode::InvokeDartCode_entry()->label());
21 __ ret(); 21 __ ret();
22 } 22 }
23 23
24 24
25 ASSEMBLER_TEST_RUN(Call, test) { 25 ASSEMBLER_TEST_RUN(Call, test) {
26 CallPattern call(test->entry()); 26 CallPattern call(test->entry());
27 EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(), 27 EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
28 call.TargetAddress()); 28 call.TargetAddress());
29 } 29 }
30 30
31 31
32 ASSEMBLER_TEST_GENERATE(Jump, assembler) {
33 __ Jmp(*StubCode::InvokeDartCode_entry());
34 const ExternalLabel label(StubCode::AllocateArray_entry()->EntryPoint());
35 __ jmp(&label);
36 __ ret();
37 }
38
39
40 ASSEMBLER_TEST_RUN(Jump, test) {
41 const Code& code = test->code();
42 const Instructions& instrs = Instructions::Handle(code.instructions());
43 bool status =
44 VirtualMemory::Protect(reinterpret_cast<void*>(instrs.EntryPoint()),
45 instrs.size(),
46 VirtualMemory::kReadWrite);
47 EXPECT(status);
48 JumpPattern jump1(test->entry(), test->code());
49 EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
50 jump1.TargetAddress());
51 JumpPattern jump2(test->entry() + jump1.pattern_length_in_bytes(),
52 test->code());
53 const Code& array_stub =
54 Code::Handle(StubCode::AllocateArray_entry()->code());
55 EXPECT_EQ(array_stub.EntryPoint(),
56 jump2.TargetAddress());
57 uword target1 = jump1.TargetAddress();
58 uword target2 = jump2.TargetAddress();
59 jump1.SetTargetAddress(target2);
60 jump2.SetTargetAddress(target1);
61 EXPECT_EQ(array_stub.EntryPoint(),
62 jump1.TargetAddress());
63 EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
64 jump2.TargetAddress());
65 }
66
67 } // namespace dart 32 } // namespace dart
68 33
69 #endif // defined TARGET_ARCH_IA32 34 #endif // defined TARGET_ARCH_IA32
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