| //===- subzero/src/IceAssemblerARM32.h - Assembler for ARM32 ----*- C++ -*-===// |
| // |
| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| // |
| // Modified by the Subzero authors. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // The Subzero Code Generator |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the Assembler class for ARM32. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SUBZERO_SRC_ICEASSEMBLERARM32_H |
| #define SUBZERO_SRC_ICEASSEMBLERARM32_H |
| |
| #include "IceAssembler.h" |
| #include "IceDefs.h" |
| #include "IceFixups.h" |
| |
| namespace Ice { |
| namespace ARM32 { |
| |
| class AssemblerARM32 : public Assembler { |
| AssemblerARM32(const AssemblerARM32 &) = delete; |
| AssemblerARM32 &operator=(const AssemblerARM32 &) = delete; |
| |
| public: |
| explicit AssemblerARM32(bool use_far_branches = false) |
| : Assembler(Asm_ARM32) { |
| // This mode is only needed and implemented for MIPS and ARM. |
| assert(!use_far_branches); |
| (void)use_far_branches; |
| } |
| ~AssemblerARM32() override = default; |
| |
| void alignFunction() override { llvm_unreachable("Not yet implemented."); } |
| |
| SizeT getBundleAlignLog2Bytes() const override { return 4; } |
| |
| const char *getNonExecPadDirective() const override { return ".p2alignl"; } |
| |
| llvm::ArrayRef<uint8_t> getNonExecBundlePadding() const override { |
| // Use a particular UDF encoding -- TRAPNaCl in LLVM: 0xE7FEDEF0 |
| // http://llvm.org/viewvc/llvm-project?view=revision&revision=173943 |
| static const uint8_t Padding[] = {0xE7, 0xFE, 0xDE, 0xF0}; |
| return llvm::ArrayRef<uint8_t>(Padding, 4); |
| } |
| |
| void padWithNop(intptr_t Padding) override { |
| (void)Padding; |
| llvm_unreachable("Not yet implemented."); |
| } |
| |
| void bindCfgNodeLabel(SizeT NodeNumber) override { |
| (void)NodeNumber; |
| llvm_unreachable("Not yet implemented."); |
| } |
| |
| bool fixupIsPCRel(FixupKind Kind) const override { |
| (void)Kind; |
| llvm_unreachable("Not yet implemented."); |
| } |
| |
| static bool classof(const Assembler *Asm) { |
| return Asm->getKind() == Asm_ARM32; |
| } |
| }; |
| |
| } // end of namespace ARM32 |
| } // end of namespace Ice |
| |
| #endif // SUBZERO_SRC_ICEASSEMBLERARM32_H |