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* Change commandline options a bit to be nicer 

* Insert accurate prototypes for functions
* Insert casts to use accurate prototypes

llvm-svn: 2677
This commit is contained in:
Chris Lattner 2002-05-20 21:43:59 +00:00
parent 99bd13b415
commit ace7b8d3bd
1 changed files with 47 additions and 42 deletions
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89
llvm/lib/Transforms/Instrumentation/TraceValues.cpp
View File

@ -19,22 +19,16 @@
#include "llvm/Assembly/Writer.h"
#include "Support/CommandLine.h"
#include "Support/StringExtras.h"
#include <algorithm>
#include <sstream>
using std::vector;
using std::string;
static cl::Flag DisablePtrHashing("tracedisablehashdisable",
"Disable pointer hashing", cl::NoFlags);
enum TraceHashPtrOpt {
HashToSeqNum, NoHash
};
static cl::Enum<enum TraceHashPtrOpt> TraceHashPtrs("tracehash", cl::NoFlags,
"Hash pointer values when tracing",
clEnumValN(HashToSeqNum, "on", "Hash pointers to sequence number"),
clEnumValN(NoHash , "off","Disable hashing of pointers"), 0);
static cl::StringList TraceFuncName ("tracefunc", "trace these functions", cl::NoFlags);
static cl::StringList TraceFuncName ("tracefunc", "trace only specific funct"
"ions", cl::NoFlags);
// We trace a particular function if no functions to trace were specified
@ -45,19 +39,14 @@ TraceThisFunction(Function* func)
{
if (TraceFuncName.getNumOccurances() == 0)
return true;
for (std::vector<std::string>::const_iterator SI=TraceFuncName.begin(),
SE=TraceFuncName.end(); SI != SE; ++SI)
if (func->getName() == *SI)
return true;
return false;
return std::find(TraceFuncName.begin(), TraceFuncName.end(), func->getName())
!= TraceFuncName.end();
}
namespace {
class ExternalFuncs {
public:
struct ExternalFuncs {
Function *PrintfFunc, *HashPtrFunc, *ReleasePtrFunc;
Function *RecordPtrFunc, *PushOnEntryFunc, *ReleaseOnReturnFunc;
void doInitialization(Module *M); // Add prototypes for external functions
@ -114,20 +103,18 @@ void ExternalFuncs::doInitialization(Module *M) {
const FunctionType *MTy =
FunctionType::get(Type::IntTy, vector<const Type*>(1, SBP), true);
PrintfFunc = M->getOrInsertFunction("printf", MTy);
// Use varargs functions with no args instead of func(sbyte*) so that
// we don't have to generate cast instructions below :-)
//
// uint (sbyte*)
const FunctionType *hashFuncTy =
FunctionType::get(Type::UIntTy, vector<const Type*>(), true);
FunctionType::get(Type::UIntTy, vector<const Type*>(1, SBP), false);
HashPtrFunc = M->getOrInsertFunction("HashPointerToSeqNum", hashFuncTy);
// varargs again, same reason.
const FunctionType *voidVAFuncTy =
FunctionType::get(Type::VoidTy, vector<const Type*>(), true);
// void (sbyte*)
const FunctionType *voidSBPFuncTy =
FunctionType::get(Type::VoidTy, vector<const Type*>(1, SBP), false);
ReleasePtrFunc =M->getOrInsertFunction("ReleasePointerSeqNum", voidVAFuncTy);
RecordPtrFunc = M->getOrInsertFunction("RecordPointer", voidVAFuncTy);
ReleasePtrFunc =M->getOrInsertFunction("ReleasePointerSeqNum", voidSBPFuncTy);
RecordPtrFunc = M->getOrInsertFunction("RecordPointer", voidSBPFuncTy);
const FunctionType *voidvoidFuncTy =
FunctionType::get(Type::VoidTy, vector<const Type*>(), false);
@ -198,7 +185,7 @@ static string getPrintfCodeFor(const Value *V) {
else if (V->getType() == Type::LabelTy)
return "0x%p";
else if (isa<PointerType>(V->getType()))
return (TraceHashPtrs == NoHash)? "0x%p" : "%d";
return DisablePtrHashing ? "0x%p" : "%d";
else if (V->getType()->isIntegral() || V->getType() == Type::BoolTy)
return "%d";
@ -230,9 +217,15 @@ static void InsertPrintInst(Value *V,BasicBlock *BB, BasicBlock::iterator &BBI,
BBI = BB->getInstList().insert(BBI, GEP)+1;
// Insert a call to the hash function if this is a pointer value
if (V && isa<PointerType>(V->getType()) && TraceHashPtrs == HashToSeqNum) {
vector<Value*> HashArgs;
HashArgs.push_back(V);
if (V && isa<PointerType>(V->getType()) && !DisablePtrHashing) {
const Type *SBP = PointerType::get(Type::SByteTy);
if (V->getType() != SBP) { // Cast pointer to be sbyte*
Instruction *I = new CastInst(V, SBP, "Hash_cast");
BBI = BB->getInstList().insert(BBI, I)+1;
V = I;
}
vector<Value*> HashArgs(1, V);
V = new CallInst(HashPtrToSeqNum, HashArgs, "ptrSeqNum");
BBI = BB->getInstList().insert(BBI, cast<Instruction>(V))+1;
}
@ -260,8 +253,14 @@ static void
InsertReleaseInst(Value *V, BasicBlock *BB,
BasicBlock::iterator &BBI,
Function* ReleasePtrFunc) {
vector<Value*> releaseArgs;
releaseArgs.push_back(V);
const Type *SBP = PointerType::get(Type::SByteTy);
if (V->getType() != SBP) { // Cast pointer to be sbyte*
Instruction *I = new CastInst(V, SBP, "RPSN_cast");
BBI = BB->getInstList().insert(BBI, I)+1;
V = I;
}
vector<Value*> releaseArgs(1, V);
Instruction *I = new CallInst(ReleasePtrFunc, releaseArgs);
BBI = BB->getInstList().insert(BBI, I)+1;
}
@ -270,8 +269,13 @@ static void
InsertRecordInst(Value *V, BasicBlock *BB,
BasicBlock::iterator &BBI,
Function* RecordPtrFunc) {
vector<Value*> releaseArgs;
releaseArgs.push_back(V);
const Type *SBP = PointerType::get(Type::SByteTy);
if (V->getType() != SBP) { // Cast pointer to be sbyte*
Instruction *I = new CastInst(V, SBP, "RP_cast");
BBI = BB->getInstList().insert(BBI, I)+1;
V = I;
}
vector<Value*> releaseArgs(1, V);
Instruction *I = new CallInst(RecordPtrFunc, releaseArgs);
BBI = BB->getInstList().insert(BBI, I)+1;
}
@ -393,7 +397,8 @@ static inline void InsertCodeToShowFunctionEntry(Function *M, Function *Printf,
for (Function::ArgumentListType::const_iterator
I = argList.begin(), E = argList.end(); I != E; ++I, ++ArgNo) {
InsertVerbosePrintInst((Value*)*I, BB, BBI,
" Arg #" + utostr(ArgNo), Printf, HashPtrToSeqNum);
" Arg #" + utostr(ArgNo) + ": ", Printf,
HashPtrToSeqNum);
}
}
@ -435,7 +440,7 @@ bool InsertTraceCode::doit(Function *M, bool traceBasicBlockExits,
externalFuncs.HashPtrFunc);
// Push a pointer set for recording alloca'd pointers at entry.
if (TraceHashPtrs == HashToSeqNum)
if (!DisablePtrHashing)
InsertPushOnEntryFunc(M, externalFuncs.PushOnEntryFunc);
for (Function::iterator BI = M->begin(); BI != M->end(); ++BI) {
@ -447,7 +452,7 @@ bool InsertTraceCode::doit(Function *M, bool traceBasicBlockExits,
TraceValuesAtBBExit(BB, externalFuncs.PrintfFunc,
externalFuncs.HashPtrFunc, &valuesStoredInFunction);
if (TraceHashPtrs == HashToSeqNum) // release seq. numbers on free/ret
if (!DisablePtrHashing) // release seq. numbers on free/ret
ReleasePtrSeqNumbers(BB, externalFuncs);
}
@ -459,7 +464,7 @@ bool InsertTraceCode::doit(Function *M, bool traceBasicBlockExits,
externalFuncs.HashPtrFunc);
// Release all recorded pointers before RETURN. Do this LAST!
if (TraceHashPtrs == HashToSeqNum)
if (!DisablePtrHashing)
InsertReleaseRecordedInst(exitBlocks[i],
externalFuncs.ReleaseOnReturnFunc);
}