mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-04 06:09:05 +00:00
57cc146595
The problem was that I slipped a change required for shrink-wrapping, namely I used getFirstTerminator instead of the getLastNonDebugInstr that was here before the refactoring, whereas the surrounding code is not yet patched for that. Original message: [X86] Refactor the prologue emission to prepare for shrink-wrapping. - Add a late pass to expand pseudo instructions (tail call and EH returns). Instead of doing it in the prologue emission. - Factor some static methods in X86FrameLowering to ease code sharing. NFC. Related to <rdar://problem/20821487> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238035 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
//===-- 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 LLVM_LIB_TARGET_X86_X86_H
|
|
#define LLVM_LIB_TARGET_X86_X86_H
|
|
|
|
#include "llvm/Support/CodeGen.h"
|
|
|
|
namespace llvm {
|
|
|
|
class FunctionPass;
|
|
class ImmutablePass;
|
|
class X86TargetMachine;
|
|
|
|
/// createX86ISelDag - This pass converts a legalized DAG into a
|
|
/// X86-specific DAG, ready for instruction scheduling.
|
|
///
|
|
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.
|
|
///
|
|
FunctionPass *createX86FloatingPointStackifierPass();
|
|
|
|
/// createX86IssueVZeroUpperPass - This pass inserts AVX vzeroupper instructions
|
|
/// before each call to avoid transition penalty between functions encoded with
|
|
/// AVX and SSE.
|
|
FunctionPass *createX86IssueVZeroUpperPass();
|
|
|
|
/// createX86EmitCodeToMemory - Returns a pass that converts a register
|
|
/// allocated function into raw machine code in a dynamically
|
|
/// allocated chunk of memory.
|
|
///
|
|
FunctionPass *createEmitX86CodeToMemory();
|
|
|
|
/// 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();
|
|
|
|
/// 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();
|
|
|
|
/// Return a Machine IR pass that expands X86-specific pseudo
|
|
/// instructions into a sequence of actual instructions. This pass
|
|
/// must run after prologue/epilogue insertion and before lowering
|
|
/// the MachineInstr to MC.
|
|
FunctionPass *createX86ExpandPseudoPass();
|
|
} // End llvm namespace
|
|
|
|
#endif
|