OLD | NEW |
1 //===- subzero/src/IceAssembler.h - Integrated assembler --------*- C++ -*-===// | 1 //===- subzero/src/IceAssembler.h - Integrated assembler --------*- C++ -*-===// |
2 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 2 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
3 // for details. All rights reserved. Use of this source code is governed by a | 3 // for details. All rights reserved. Use of this source code is governed by a |
4 // BSD-style license that can be found in the LICENSE file. | 4 // BSD-style license that can be found in the LICENSE file. |
5 // | 5 // |
6 // Modified by the Subzero authors. | 6 // Modified by the Subzero authors. |
7 // | 7 // |
8 //===----------------------------------------------------------------------===// | 8 //===----------------------------------------------------------------------===// |
9 // | 9 // |
10 // The Subzero Code Generator | 10 // The Subzero Code Generator |
(...skipping 12 matching lines...) Expand all Loading... |
23 /// | 23 /// |
24 //===----------------------------------------------------------------------===// | 24 //===----------------------------------------------------------------------===// |
25 | 25 |
26 #ifndef SUBZERO_SRC_ICEASSEMBLER_H | 26 #ifndef SUBZERO_SRC_ICEASSEMBLER_H |
27 #define SUBZERO_SRC_ICEASSEMBLER_H | 27 #define SUBZERO_SRC_ICEASSEMBLER_H |
28 | 28 |
29 #include "IceDefs.h" | 29 #include "IceDefs.h" |
30 #include "IceFixups.h" | 30 #include "IceFixups.h" |
31 #include "IceUtils.h" | 31 #include "IceUtils.h" |
32 | 32 |
| 33 #include "llvm/Support/Allocator.h" |
| 34 |
33 namespace Ice { | 35 namespace Ice { |
34 | 36 |
35 class Assembler; | 37 class Assembler; |
36 | 38 |
37 /// A Label can be in one of three states: | 39 /// A Label can be in one of three states: |
38 /// - Unused. | 40 /// - Unused. |
39 /// - Linked, unplaced and tracking the position of branches to the label. | 41 /// - Linked, unplaced and tracking the position of branches to the label. |
40 /// - Bound, placed and tracking its position. | 42 /// - Bound, placed and tracking its position. |
41 class Label { | 43 class Label { |
42 Label(const Label &) = delete; | 44 Label(const Label &) = delete; |
(...skipping 288 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
331 | 333 |
332 AssemblerKind getKind() const { return Kind; } | 334 AssemblerKind getKind() const { return Kind; } |
333 | 335 |
334 protected: | 336 protected: |
335 explicit Assembler(AssemblerKind Kind) | 337 explicit Assembler(AssemblerKind Kind) |
336 : Kind(Kind), Allocator(), Buffer(*this) {} | 338 : Kind(Kind), Allocator(), Buffer(*this) {} |
337 | 339 |
338 private: | 340 private: |
339 const AssemblerKind Kind; | 341 const AssemblerKind Kind; |
340 | 342 |
341 ArenaAllocator<32 * 1024> Allocator; | 343 using AssemblerAllocator = |
| 344 llvm::BumpPtrAllocatorImpl<llvm::MallocAllocator, /*SlabSize=*/32 * 1024>; |
| 345 AssemblerAllocator Allocator; |
| 346 |
342 /// FunctionName and IsInternal are transferred from the original Cfg object, | 347 /// FunctionName and IsInternal are transferred from the original Cfg object, |
343 /// since the Cfg object may be deleted by the time the assembler buffer is | 348 /// since the Cfg object may be deleted by the time the assembler buffer is |
344 /// emitted. | 349 /// emitted. |
345 IceString FunctionName = ""; | 350 IceString FunctionName = ""; |
346 bool IsInternal = false; | 351 bool IsInternal = false; |
347 /// Preliminary indicates whether a preliminary pass is being made for | 352 /// Preliminary indicates whether a preliminary pass is being made for |
348 /// calculating bundle padding (Preliminary=true), versus the final pass where | 353 /// calculating bundle padding (Preliminary=true), versus the final pass where |
349 /// all changes to label bindings, label links, and relocation fixups are | 354 /// all changes to label bindings, label links, and relocation fixups are |
350 /// fully committed (Preliminary=false). | 355 /// fully committed (Preliminary=false). |
351 bool Preliminary = false; | 356 bool Preliminary = false; |
352 | 357 |
353 /// Installs a created fixup, after it has been allocated. | 358 /// Installs a created fixup, after it has been allocated. |
354 void installFixup(AssemblerFixup *F) { Buffer.installFixup(F); } | 359 void installFixup(AssemblerFixup *F) { Buffer.installFixup(F); } |
355 | 360 |
356 protected: | 361 protected: |
357 // Buffer's constructor uses the Allocator, so it needs to appear after it. | 362 // Buffer's constructor uses the Allocator, so it needs to appear after it. |
358 // TODO(jpp): dependencies on construction order are a nice way of shooting | 363 // TODO(jpp): dependencies on construction order are a nice way of shooting |
359 // yourself in the foot. Fix this. | 364 // yourself in the foot. Fix this. |
360 AssemblerBuffer Buffer; | 365 AssemblerBuffer Buffer; |
361 }; | 366 }; |
362 | 367 |
363 } // end of namespace Ice | 368 } // end of namespace Ice |
364 | 369 |
365 #endif // SUBZERO_SRC_ICEASSEMBLER_H_ | 370 #endif // SUBZERO_SRC_ICEASSEMBLER_H_ |
OLD | NEW |