X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=lib%2FTarget%2FX86%2FX86.h;h=3b5360ef87cc99e208f26a5e741e933855e426ac;hp=61d3123ef6b270a28f280f01ed43e485fe17ec7e;hb=c1896335867238b01457db7e5a2a1a66d81a39d9;hpb=8d44ba8c5c2d66425caecb679727fe109d7e578d diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h index 61d3123ef6b..62c65bacef5 100644 --- a/lib/Target/X86/X86.h +++ b/lib/Target/X86/X86.h @@ -1,54 +1,80 @@ //===-- X86.h - Top-level interface for X86 representation ------*- C++ -*-===// // +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// // This file contains the entry points for global functions defined in the x86 // target library, as used by the LLVM JIT. // //===----------------------------------------------------------------------===// -#ifndef TARGET_X86_H -#define TARGET_X86_H +#ifndef LLVM_LIB_TARGET_X86_X86_H +#define LLVM_LIB_TARGET_X86_X86_H -#include -class TargetMachine; -class Pass; +#include "llvm/Support/CodeGen.h" -/// createX86SimpleInstructionSelector - This pass converts an LLVM function -/// into a machine code representation in a very simple peep-hole fashion. The -/// generated code sucks but the implementation is nice and simple. -/// -Pass *createX86SimpleInstructionSelector(TargetMachine &TM); +namespace llvm { + +class FunctionPass; +class ImmutablePass; +class X86TargetMachine; -/// createX86PeepholeOptimizer - Create a pass to perform X86 specific peephole -/// optimizations. +/// createX86ISelDag - This pass converts a legalized DAG into a +/// X86-specific DAG, ready for instruction scheduling. /// -Pass *createX86PeepholeOptimizerPass(); +FunctionPass *createX86ISelDag(X86TargetMachine &TM, + CodeGenOpt::Level OptLevel); + +/// createX86GlobalBaseRegPass - This pass initializes a global base +/// register for PIC on x86-32. +FunctionPass* createX86GlobalBaseRegPass(); + +/// createCleanupLocalDynamicTLSPass() - This pass combines multiple accesses +/// to local-dynamic TLS variables so that the TLS base address for the module +/// is only fetched once per execution path through the function. +FunctionPass *createCleanupLocalDynamicTLSPass(); /// createX86FloatingPointStackifierPass - This function returns a pass which /// converts floating point register references and pseudo instructions into /// floating point stack references and physical instructions. /// -Pass *createX86FloatingPointStackifierPass(); +FunctionPass *createX86FloatingPointStackifierPass(); -/// createX86CodePrinterPass - Returns a pass that prints the X86 -/// assembly code for a MachineFunction to the given output stream, -/// using the given target machine description. This should work -/// regardless of whether the function is in SSA form. -/// -Pass *createX86CodePrinterPass(std::ostream &o, TargetMachine &tm); +/// createX86IssueVZeroUpperPass - This pass inserts AVX vzeroupper instructions +/// before each call to avoid transition penalty between functions encoded with +/// AVX and SSE. +FunctionPass *createX86IssueVZeroUpperPass(); -/// X86EmitCodeToMemory - This function converts a register allocated function -/// into raw machine code in a dynamically allocated chunk of memory. A pointer -/// to the start of the function is returned. +/// createX86EmitCodeToMemory - Returns a pass that converts a register +/// allocated function into raw machine code in a dynamically +/// allocated chunk of memory. /// -Pass *createEmitX86CodeToMemory(); +FunctionPass *createEmitX86CodeToMemory(); -// Defines symbolic names for X86 registers. This defines a mapping from -// register name to register number. -// -#include "X86GenRegisterNames.inc" +/// createX86PadShortFunctions - Return a pass that pads short functions +/// with NOOPs. This will prevent a stall when returning on the Atom. +FunctionPass *createX86PadShortFunctions(); +/// createX86FixupLEAs - Return a a pass that selectively replaces +/// certain instructions (like add, sub, inc, dec, some shifts, +/// and some multiplies) by equivalent LEA instructions, in order +/// to eliminate execution delays in some Atom processors. +FunctionPass *createX86FixupLEAs(); -// Defines symbolic names for the X86 instructions. -// -#include "X86GenInstrNames.inc" +/// createX86CallFrameOptimization - Return a pass that optimizes +/// the code-size of x86 call sequences. This is done by replacing +/// esp-relative movs with pushes. +FunctionPass *createX86CallFrameOptimization(); + +/// createX86WinEHStatePass - Return an IR pass that inserts EH registration +/// stack objects and explicit EH state updates. This pass must run after EH +/// preparation, which does Windows-specific but architecture-neutral +/// preparation. +FunctionPass *createX86WinEHStatePass(); + +} // End llvm namespace #endif