mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
d6fd961c5c
variables. This pass can be invoked by llvm-ld or opt to traverse over the call graph to detect what function frames and their automatic variables can be overlaid. Currently this builds an archive , but needs to be changed to a loadable module. llvm-svn: 84753
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
//===-- PIC16FrameOverlay.h - Interface for PIC16 Frame Overlay -*- 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 PIC16 Overlay infrastructure.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef PIC16FRAMEOVERLAY_H
|
|
#define PIC16FRAMEOVERLAY_H
|
|
|
|
#include "llvm/Analysis/CallGraph.h"
|
|
#include "llvm/Pass.h"
|
|
#include "llvm/CallGraphSCCPass.h"
|
|
|
|
using std::string;
|
|
using namespace llvm;
|
|
|
|
namespace llvm {
|
|
namespace PIC16Overlay {
|
|
enum OverlayConsts {
|
|
StartInterruptColor = 200,
|
|
StartIndirectCallColor = 300
|
|
};
|
|
}
|
|
class PIC16FrameOverlay : public ModulePass {
|
|
std::string OverlayStr;
|
|
unsigned InterruptDepth;
|
|
unsigned IndirectCallColor;
|
|
public:
|
|
static char ID; // Class identification
|
|
PIC16FrameOverlay() : ModulePass(&ID) {
|
|
OverlayStr = "Overlay=";
|
|
InterruptDepth = PIC16Overlay::StartInterruptColor;
|
|
IndirectCallColor = PIC16Overlay::StartIndirectCallColor;
|
|
}
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const;
|
|
virtual bool runOnModule(Module &M);
|
|
|
|
private:
|
|
unsigned getColor(Function *Fn);
|
|
void setColor(Function *Fn, unsigned Color);
|
|
unsigned ModifyDepthForInterrupt(CallGraphNode *CGN, unsigned Depth);
|
|
void MarkIndirectlyCalledFunctions(Module &M);
|
|
void DFSTraverse(CallGraphNode *CGN, unsigned Depth);
|
|
};
|
|
} // End of namespace
|
|
|
|
#endif
|