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authorChris Lattner <sabre@nondot.org>2007-02-20 05:31:49 +0000
committerChris Lattner <sabre@nondot.org>2007-02-20 05:31:49 +0000
commitbb9a0411007d9bb7a60313fe427e2ef1fc98c22a (patch)
treefa72de36eb85ac72fffe99050f8b314c00d8f202 /lib/Transforms/Instrumentation/EmitFunctions.cpp
parent0963ad5271c1c9c96defe51a5420115e38967f38 (diff)
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remove reoptimizer-specific passes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34439 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Instrumentation/EmitFunctions.cpp')
-rw-r--r--lib/Transforms/Instrumentation/EmitFunctions.cpp126
1 files changed, 0 insertions, 126 deletions
diff --git a/lib/Transforms/Instrumentation/EmitFunctions.cpp b/lib/Transforms/Instrumentation/EmitFunctions.cpp
deleted file mode 100644
index 6fe10d07d6..0000000000
--- a/lib/Transforms/Instrumentation/EmitFunctions.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//===-- EmitFunctions.cpp - interface to insert instrumentation -----------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This inserts into the input module three new global constants containing
-// mapping information pertinent to the Reoptimizer's runtime library:
-// 1) a structure containing a pointer to each function;
-// 2) an array containing a boolean which is true iff the corresponding
-// function in 1) contains a back-edge branch suitable for the Reoptimizer's
-// first-level instrumentation;
-// 3) an integer containing the number of entries in 1) and 2).
-//
-// NOTE: This pass is used by the reoptimizer only.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Module.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/CFG.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Transforms/Instrumentation.h"
-using namespace llvm;
-
-namespace llvm {
-
-namespace {
- enum Color{
- WHITE,
- GREY,
- BLACK
- };
-
- struct VISIBILITY_HIDDEN EmitFunctionTable : public ModulePass {
- bool runOnModule(Module &M);
- };
-
- RegisterPass<EmitFunctionTable>
- X("emitfuncs", "Emit a function table for the reoptimizer");
-}
-
-static char doDFS(BasicBlock * node,std::map<BasicBlock *, Color > &color){
- color[node] = GREY;
-
- for(succ_iterator vl = succ_begin(node), ve = succ_end(node); vl != ve; ++vl){
-
- BasicBlock *BB = *vl;
-
- if(color[BB]!=GREY && color[BB]!=BLACK){
- if(!doDFS(BB, color)){
- return 0;
- }
- }
-
- //if has backedge
- else if(color[BB]==GREY)
- return 0;
-
- }
-
- color[node] = BLACK;
- return 1;
-}
-
-static char hasBackEdge(Function *F){
- std::map<BasicBlock *, Color > color;
- return doDFS(F->begin(), color);
-}
-
-// Per Module pass for inserting function table
-bool EmitFunctionTable::runOnModule(Module &M){
- std::vector<const Type*> vType;
-
- std::vector<Constant *> vConsts;
- std::vector<Constant *> sBCons;
-
- unsigned int counter = 0;
- for(Module::iterator MI = M.begin(), ME = M.end(); MI != ME; ++MI)
- if (!MI->isDeclaration()) {
- vType.push_back(MI->getType());
-
- //std::cerr<<MI;
-
- vConsts.push_back(MI);
- sBCons.push_back(ConstantInt::get(Type::Int8Ty, hasBackEdge(MI)));
-
- counter++;
- }
-
- StructType *sttype = StructType::get(vType);
- Constant *cstruct = ConstantStruct::get(sttype, vConsts);
-
- GlobalVariable *gb = new GlobalVariable(cstruct->getType(), true,
- GlobalValue::ExternalLinkage,
- cstruct, "llvmFunctionTable");
- M.getGlobalList().push_back(gb);
-
- Constant *constArray = ConstantArray::get(ArrayType::get(Type::Int8Ty,
- sBCons.size()),
- sBCons);
-
- GlobalVariable *funcArray = new GlobalVariable(constArray->getType(), true,
- GlobalValue::ExternalLinkage,
- constArray, "llvmSimpleFunction");
-
- M.getGlobalList().push_back(funcArray);
-
- ConstantInt *cnst = ConstantInt::get(Type::Int32Ty, counter);
- GlobalVariable *fnCount = new GlobalVariable(Type::Int32Ty, true,
- GlobalValue::ExternalLinkage,
- cnst, "llvmFunctionCount");
- M.getGlobalList().push_back(fnCount);
- return true; // Always modifies program
-}
-
-ModulePass *createEmitFunctionTablePass () {
- return new EmitFunctionTable();
-}
-
-} // end namespace llvm