Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(216)

Side by Side Diff: runtime/vm/instructions_ia32.cc

Issue 9414003: Initial implementation of a flow-graph builder for Dart's AST. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Rely on assumption that code can reach both branches of a condition. Created 8 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « runtime/vm/instructions_ia32.h ('k') | runtime/vm/instructions_ia32_test.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright (c) 2011, 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" // Needed here to get TARGET_ARCH_IA32. 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32.
6 #if defined(TARGET_ARCH_IA32) 6 #if defined(TARGET_ARCH_IA32)
7 7
8 #include "vm/instructions.h" 8 #include "vm/instructions.h"
9 #include "vm/object.h" 9 #include "vm/object.h"
10 10
11 namespace dart { 11 namespace dart {
12 12
13 bool Instruction::TestBytesWith(const int* data, int num_bytes) const { 13 bool InstructionPattern::TestBytesWith(const int* data, int num_bytes) const {
14 ASSERT(data != NULL); 14 ASSERT(data != NULL);
15 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_); 15 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_);
16 for (int i = 0; i < num_bytes; i++) { 16 for (int i = 0; i < num_bytes; i++) {
17 // Skip comparison for data[i] < 0. 17 // Skip comparison for data[i] < 0.
18 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) { 18 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) {
19 return false; 19 return false;
20 } 20 }
21 } 21 }
22 return true; 22 return true;
23 } 23 }
24 24
25 25
26 uword CallOrJump::TargetAddress() const { 26 uword CallOrJumpPattern::TargetAddress() const {
27 ASSERT(IsValid()); 27 ASSERT(IsValid());
28 return start() + kLengthInBytes + *reinterpret_cast<uword*>(start() + 1); 28 return start() + kLengthInBytes + *reinterpret_cast<uword*>(start() + 1);
29 } 29 }
30 30
31 31
32 void CallOrJump::SetTargetAddress(uword target) const { 32 void CallOrJumpPattern::SetTargetAddress(uword target) const {
33 ASSERT(IsValid()); 33 ASSERT(IsValid());
34 *reinterpret_cast<uword*>(start() + 1) = target - start() - kLengthInBytes; 34 *reinterpret_cast<uword*>(start() + 1) = target - start() - kLengthInBytes;
35 } 35 }
36 36
37 37
38 const int* Call::pattern() const { 38 const int* CallPattern::pattern() const {
39 static const int kCallPattern[kLengthInBytes] = {0xE8, -1, -1, -1, -1}; 39 static const int kCallPattern[kLengthInBytes] = {0xE8, -1, -1, -1, -1};
40 return kCallPattern; 40 return kCallPattern;
41 } 41 }
42 42
43 43
44 const int* Jump::pattern() const { 44 const int* JumpPattern::pattern() const {
45 static const int kJumpPattern[kLengthInBytes] = {0xE9, -1, -1, -1, -1}; 45 static const int kJumpPattern[kLengthInBytes] = {0xE9, -1, -1, -1, -1};
46 return kJumpPattern; 46 return kJumpPattern;
47 } 47 }
48 48
49 49
50 } // namespace dart 50 } // namespace dart
51 51
52 #endif // defined TARGET_ARCH_IA32 52 #endif // defined TARGET_ARCH_IA32
OLDNEW
« no previous file with comments | « runtime/vm/instructions_ia32.h ('k') | runtime/vm/instructions_ia32_test.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698