mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-07-24 22:24:54 +00:00
Rename MachineCodeForBasicBlock to MachineBasicBlock
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4318 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
@@ -1,16 +1,12 @@
|
||||
// $Id$ -*-c++-*-
|
||||
//***************************************************************************
|
||||
// File:
|
||||
// PeepholeOpts.h
|
||||
//===-- PeepholeOpts.cpp --------------------------------------------------===//
|
||||
//
|
||||
// Purpose:
|
||||
// Support for performing several peephole opts in one or a few passes
|
||||
// over the machine code of a method.
|
||||
//**************************************************************************/
|
||||
|
||||
// Support for performing several peephole opts in one or a few passes over the
|
||||
// machine code of a method.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/CodeGen/PeepholeOpts.h"
|
||||
#include "llvm/CodeGen/MachineCodeForBasicBlock.h"
|
||||
#include "llvm/CodeGen/MachineBasicBlock.h"
|
||||
#include "llvm/CodeGen/MachineInstr.h"
|
||||
#include "llvm/Target/TargetMachine.h"
|
||||
#include "llvm/Target/MachineInstrInfo.h"
|
||||
@@ -18,15 +14,11 @@
|
||||
#include "llvm/BasicBlock.h"
|
||||
#include "llvm/Pass.h"
|
||||
|
||||
|
||||
//********************* Internal Class Declarations ************************/
|
||||
|
||||
|
||||
//************************* Internal Functions *****************************/
|
||||
|
||||
inline void
|
||||
DeleteInstruction(MachineCodeForBasicBlock& mvec,
|
||||
MachineCodeForBasicBlock::iterator& BBI,
|
||||
DeleteInstruction(MachineBasicBlock& mvec,
|
||||
MachineBasicBlock::iterator& BBI,
|
||||
const TargetMachine& target)
|
||||
{
|
||||
// Check if this instruction is in a delay slot of its predecessor.
|
||||
@@ -55,8 +47,8 @@ DeleteInstruction(MachineCodeForBasicBlock& mvec,
|
||||
|
||||
|
||||
inline bool
|
||||
RemoveUselessCopies(MachineCodeForBasicBlock& mvec,
|
||||
MachineCodeForBasicBlock::iterator& BBI,
|
||||
RemoveUselessCopies(MachineBasicBlock& mvec,
|
||||
MachineBasicBlock::iterator& BBI,
|
||||
const TargetMachine& target)
|
||||
{
|
||||
if (target.getOptInfo().IsUselessCopy(*BBI))
|
||||
@@ -72,8 +64,8 @@ RemoveUselessCopies(MachineCodeForBasicBlock& mvec,
|
||||
|
||||
class PeepholeOpts: public BasicBlockPass {
|
||||
const TargetMachine ⌖
|
||||
bool visit(MachineCodeForBasicBlock& mvec,
|
||||
MachineCodeForBasicBlock::iterator BBI) const;
|
||||
bool visit(MachineBasicBlock& mvec,
|
||||
MachineBasicBlock::iterator BBI) const;
|
||||
public:
|
||||
PeepholeOpts(const TargetMachine &T): target(T) { }
|
||||
bool runOnBasicBlock(BasicBlock &BB); // apply this pass to each BB
|
||||
@@ -90,8 +82,8 @@ X("peephole", "Peephole Optimization", createPeepholeOptsPass);
|
||||
* instruction before MI, but not
|
||||
*/
|
||||
bool
|
||||
PeepholeOpts::visit(MachineCodeForBasicBlock& mvec,
|
||||
MachineCodeForBasicBlock::iterator BBI) const
|
||||
PeepholeOpts::visit(MachineBasicBlock& mvec,
|
||||
MachineBasicBlock::iterator BBI) const
|
||||
{
|
||||
bool changed = false;
|
||||
|
||||
@@ -108,16 +100,16 @@ bool
|
||||
PeepholeOpts::runOnBasicBlock(BasicBlock &BB)
|
||||
{
|
||||
// Get the machine instructions for this BB
|
||||
MachineCodeForBasicBlock& mvec = MachineCodeForBasicBlock::get(&BB);
|
||||
MachineBasicBlock& mvec = MachineBasicBlock::get(&BB);
|
||||
|
||||
// Iterate over all machine instructions in the BB
|
||||
// Use a reverse iterator to allow deletion of MI or any instruction after it.
|
||||
// Insertions or deletions *before* MI are not safe.
|
||||
//
|
||||
for (MachineCodeForBasicBlock::reverse_iterator RI=mvec.rbegin(),
|
||||
for (MachineBasicBlock::reverse_iterator RI=mvec.rbegin(),
|
||||
RE=mvec.rend(); RI != RE; )
|
||||
{
|
||||
MachineCodeForBasicBlock::iterator BBI = RI.base()-1; // save before incr
|
||||
MachineBasicBlock::iterator BBI = RI.base()-1; // save before incr
|
||||
++RI; // pre-increment to delete MI or after it
|
||||
visit(mvec, BBI);
|
||||
}
|
||||
|
Reference in New Issue
Block a user