1 //===-- X86.h - Top-level interface for X86 representation ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the entry points for global functions defined in the x86
11 // target library, as used by the LLVM JIT.
13 //===----------------------------------------------------------------------===//
18 #include "MCTargetDesc/X86BaseInfo.h"
19 #include "MCTargetDesc/X86MCTargetDesc.h"
20 #include "llvm/Support/DataTypes.h"
21 #include "llvm/Target/TargetMachine.h"
27 class MachineCodeEmitter;
29 class X86TargetMachine;
31 /// createX86ISelDag - This pass converts a legalized DAG into a
32 /// X86-specific DAG, ready for instruction scheduling.
34 FunctionPass *createX86ISelDag(X86TargetMachine &TM,
35 CodeGenOpt::Level OptLevel);
37 /// createGlobalBaseRegPass - This pass initializes a global base
38 /// register for PIC on x86-32.
39 FunctionPass* createGlobalBaseRegPass();
41 /// createX86FloatingPointStackifierPass - This function returns a pass which
42 /// converts floating point register references and pseudo instructions into
43 /// floating point stack references and physical instructions.
45 FunctionPass *createX86FloatingPointStackifierPass();
47 /// createSSEDomainFixPass - This pass twiddles SSE opcodes to prevent domain
49 FunctionPass *createSSEDomainFixPass();
51 /// createX86IssueVZeroUpperPass - This pass inserts AVX vzeroupper instructions
52 /// before each call to avoid transition penalty between functions encoded with
54 FunctionPass *createX86IssueVZeroUpperPass();
56 /// createX86CodeEmitterPass - Return a pass that emits the collected X86 code
57 /// to the specified MCE object.
58 FunctionPass *createX86JITCodeEmitterPass(X86TargetMachine &TM,
61 /// createX86EmitCodeToMemory - Returns a pass that converts a register
62 /// allocated function into raw machine code in a dynamically
63 /// allocated chunk of memory.
65 FunctionPass *createEmitX86CodeToMemory();
67 /// createX86MaxStackAlignmentHeuristicPass - This function returns a pass
68 /// which determines whether the frame pointer register should be
69 /// reserved in case dynamic stack alignment is later required.
71 FunctionPass *createX86MaxStackAlignmentHeuristicPass();
73 } // End llvm namespace