[llvm-commits] [llvm] r79691 - in /llvm/trunk/lib/Target/PIC16/PIC16Passes: Makefile PIC16CallGraph.cpp
Chris Lattner
sabre at nondot.org
Fri Aug 21 16:12:47 PDT 2009
Author: lattner
Date: Fri Aug 21 18:12:47 2009
New Revision: 79691
URL: http://llvm.org/viewvc/llvm-project?rev=79691&view=rev
Log:
Revert r79563
Removed:
llvm/trunk/lib/Target/PIC16/PIC16Passes/Makefile
llvm/trunk/lib/Target/PIC16/PIC16Passes/PIC16CallGraph.cpp
Removed: llvm/trunk/lib/Target/PIC16/PIC16Passes/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PIC16/PIC16Passes/Makefile?rev=79690&view=auto
==============================================================================
--- llvm/trunk/lib/Target/PIC16/PIC16Passes/Makefile (original)
+++ llvm/trunk/lib/Target/PIC16/PIC16Passes/Makefile (removed)
@@ -1,16 +0,0 @@
-##===- lib/Target/PIC16/Makefile ---------------------------*- Makefile -*-===##
-#
-# The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-LEVEL = ../../../..
-LIBRARYNAME = PIC16Passes
-TARGET = PIC16
-
-LOADABLE_MODULE = 1
-
-include $(LEVEL)/Makefile.common
-
Removed: llvm/trunk/lib/Target/PIC16/PIC16Passes/PIC16CallGraph.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PIC16/PIC16Passes/PIC16CallGraph.cpp?rev=79690&view=auto
==============================================================================
--- llvm/trunk/lib/Target/PIC16/PIC16Passes/PIC16CallGraph.cpp (original)
+++ llvm/trunk/lib/Target/PIC16/PIC16Passes/PIC16CallGraph.cpp (removed)
@@ -1,161 +0,0 @@
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Pass.h"
-#include "llvm/Module.h"
-#include "llvm/Transforms/Utils/Cloning.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#include <vector>
-using namespace llvm;
-using std::vector;
-using std::string;
-
-namespace {
- class PIC16CallGraph : public ModulePass {
- public:
- static char ID; // Class identification
- PIC16CallGraph() : ModulePass(&ID) {}
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<CallGraph>();
- }
- virtual bool runOnModule(Module &M) {
- // Initially record that no interrupt has been found
- InterruptFound = false;
-
- CallGraph &CG = getAnalysis<CallGraph>();
- for (CallGraph::iterator it = CG.begin() ; it != CG.end(); it++)
- {
- // External calling node doesn't have any function associated
- // with it
- if (!it->first)
- continue;
-
- if (it->first->getName().str() == "main") {
- // See if the main itself is interrupt function then report an error.
- if (it->first->getSection().find("interrupt") != string::npos)
- reportError("Function 'main' can't be interrupt function");
- else {
- // Set the MainLine tag for function main also.
- it->second->getFunction()->setSection("ML");
- // mark the hierarchy
- markFunctionHierarchy(it->second, "ML");
- }
- } else if (it->first->getSection().find("interrupt") != string::npos) {
- if (InterruptFound)
- reportError("More than one interrupt functions defined in the module");
-
- InterruptFound = true;
- markFunctionHierarchy(it->second, "IL");
- }
- }
- return false;
- }
- private: // Functions
- // Makr function hierarchy for the MainLine or InterruptLine.
- void markFunctionHierarchy(CallGraphNode *CGN, string StringMark);
-
- // Error reporting for PIC16Pass
- void reportError(string ErrorString, vector<string> &Values);
- void reportError(string ErrorString);
- private: // Data
- // Records if the interrupt function has already been found.
- // If more than one interrupt function is found then an error
- // should be thrown.
- bool InterruptFound;
- };
- char PIC16CallGraph::ID =0;
- static RegisterPass<PIC16CallGraph>
- Y("pic16cg", "PIC16 CallGraph Construction");
-
-} // End of anonymous namespace
-
-void PIC16CallGraph::reportError(string ErrorString) {
- errs() << "ERROR : " << ErrorString << "\n";
- exit(1);
-}
-
-void PIC16CallGraph::
-reportError (string ErrorString, vector<string> &Values) {
- unsigned ValCount = Values.size();
- string TargetString;
- for (unsigned i=0; i<ValCount; ++i) {
- TargetString = "%";
- TargetString += ((char)i + '0');
- ErrorString.replace(ErrorString.find(TargetString), TargetString.length(), Values[i]);
- }
- errs() << "ERROR : " << ErrorString << "\n";
- exit(1);
- //llvm_report_error(ErrorString);
-}
-
-void PIC16CallGraph::
-markFunctionHierarchy(CallGraphNode *CGN, string StringMark) {
- string AlternateMark;
- string SharedMark = "SL";
- if (StringMark == "ML")
- AlternateMark = "IL";
- else
- AlternateMark = "ML";
-
- // Mark all the called functions
- for(CallGraphNode::iterator cgn_it = CGN->begin();
- cgn_it != CGN->end(); ++cgn_it) {
- Function *CalledF = cgn_it->second->getFunction();
-
- // If calling an external function then CallGraphNode
- // will not be associated with any function.
- if (!CalledF)
- continue;
-
- // Issue diagnostic if interrupt function is being called.
- if (CalledF->getSection().find("interrupt") != string::npos) {
- vector<string> Values;
- Values.push_back(CalledF->getName().str());
- reportError("Interrupt function (%0) can't be called", Values);
- }
-
- // If already shared mark then no need to check any further.
- // Also a great potential for recursion.
- if (CalledF->getSection().find(SharedMark) != string::npos) {
- continue;
- }
-
- // Has already been mark
- if (CalledF->getSection().find(StringMark) != string::npos) {
- // Issue diagnostic
- // Potential for recursion.
- } else {
- // Mark now
- if (CalledF->getSection().find(AlternateMark) != string::npos) {
- // Function is alternatively marked. It should be a shared one.
-
- // Shared functions should be clone. Clone here.
- Function *ClonedFunc = CloneFunction(CalledF);
-
- // Add the newly created function to the module.
- CalledF->getParent()->getFunctionList().push_back(ClonedFunc);
-
- // The new function should be for interrupt line. Therefore should have the
- // name suffixed with IL and section attribute marked with IL.
- ClonedFunc->setName(CalledF->getName().str() + ".IL");
- ClonedFunc->setSection("IL");
-
- // Original function now should be for MainLine only.
- CalledF->setSection("ML");
-
- // Update the CallSite
- CallSite CS = cgn_it->first;
- CS.getInstruction()->getOperand(0)->setName(CalledF->getName().str() + ".shared");
- } else {
- // Function is not marked. It should be marked now.
- CalledF->setSection(StringMark);
- }
- }
-
- // Before going any further mark all the called function by current
- // function.
- markFunctionHierarchy(cgn_it->second ,StringMark);
- } // end of loop of all called functions.
-
-}
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