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Diffstat (limited to 'lib/Transforms/Instrumentation/GCOVProfiling.cpp')
-rw-r--r--lib/Transforms/Instrumentation/GCOVProfiling.cpp140
1 files changed, 71 insertions, 69 deletions
diff --git a/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index 5e064cd70d..a79873cbf6 100644
--- a/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -25,9 +25,9 @@
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/UniqueVector.h"
#include "llvm/DebugInfo.h"
-#include "llvm/IRBuilder.h"
-#include "llvm/Instructions.h"
-#include "llvm/Module.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/DebugLoc.h"
@@ -44,14 +44,19 @@ namespace {
public:
static char ID;
GCOVProfiler()
- : ModulePass(ID), EmitNotes(true), EmitData(true), Use402Format(false),
- UseExtraChecksum(false), NoRedZone(false) {
+ : ModulePass(ID), EmitNotes(true), EmitData(true),
+ UseExtraChecksum(false), NoRedZone(false),
+ NoFunctionNamesInData(false) {
+ memcpy(Version, DefaultGCovVersion, 4);
initializeGCOVProfilerPass(*PassRegistry::getPassRegistry());
}
- GCOVProfiler(bool EmitNotes, bool EmitData, bool use402Format = false,
- bool useExtraChecksum = false, bool NoRedZone = false)
+ GCOVProfiler(bool EmitNotes, bool EmitData, const char (&Version)[4],
+ bool UseExtraChecksum, bool NoRedZone,
+ bool NoFunctionNamesInData)
: ModulePass(ID), EmitNotes(EmitNotes), EmitData(EmitData),
- Use402Format(use402Format), UseExtraChecksum(useExtraChecksum) {
+ UseExtraChecksum(UseExtraChecksum), NoRedZone(NoRedZone),
+ NoFunctionNamesInData(NoFunctionNamesInData) {
+ memcpy(this->Version, Version, 4);
assert((EmitNotes || EmitData) && "GCOVProfiler asked to do nothing?");
initializeGCOVProfilerPass(*PassRegistry::getPassRegistry());
}
@@ -96,9 +101,10 @@ namespace {
bool EmitNotes;
bool EmitData;
- bool Use402Format;
+ char Version[4];
bool UseExtraChecksum;
bool NoRedZone;
+ bool NoFunctionNamesInData;
Module *M;
LLVMContext *Ctx;
@@ -110,11 +116,12 @@ INITIALIZE_PASS(GCOVProfiler, "insert-gcov-profiling",
"Insert instrumentation for GCOV profiling", false, false)
ModulePass *llvm::createGCOVProfilerPass(bool EmitNotes, bool EmitData,
- bool Use402Format,
+ const char (&Version)[4],
bool UseExtraChecksum,
- bool NoRedZone) {
- return new GCOVProfiler(EmitNotes, EmitData, Use402Format, UseExtraChecksum,
- NoRedZone);
+ bool NoRedZone,
+ bool NoFunctionNamesInData) {
+ return new GCOVProfiler(EmitNotes, EmitData, Version, UseExtraChecksum,
+ NoRedZone, NoFunctionNamesInData);
}
namespace {
@@ -252,8 +259,8 @@ namespace {
// object users can construct, the blocks and lines will be rooted here.
class GCOVFunction : public GCOVRecord {
public:
- GCOVFunction(DISubprogram SP, raw_ostream *os,
- bool Use402Format, bool UseExtraChecksum) {
+ GCOVFunction(DISubprogram SP, raw_ostream *os, uint32_t Ident,
+ bool UseExtraChecksum) {
this->os = os;
Function *F = SP.getFunction();
@@ -270,7 +277,6 @@ namespace {
if (UseExtraChecksum)
++BlockLen;
write(BlockLen);
- uint32_t Ident = reinterpret_cast<intptr_t>((MDNode*)SP);
write(Ident);
write(0); // lineno checksum
if (UseExtraChecksum)
@@ -375,10 +381,9 @@ void GCOVProfiler::emitGCNO() {
std::string ErrorInfo;
raw_fd_ostream out(mangleName(CU, "gcno").c_str(), ErrorInfo,
raw_fd_ostream::F_Binary);
- if (!Use402Format)
- out.write("oncg*404MVLL", 12);
- else
- out.write("oncg*204MVLL", 12);
+ out.write("oncg", 4);
+ out.write(Version, 4);
+ out.write("MVLL", 4);
DIArray SPs = CU.getSubprograms();
for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
@@ -387,7 +392,7 @@ void GCOVProfiler::emitGCNO() {
Function *F = SP.getFunction();
if (!F) continue;
- GCOVFunction Func(SP, &out, Use402Format, UseExtraChecksum);
+ GCOVFunction Func(SP, &out, i, UseExtraChecksum);
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
GCOVBlock &Block = Func.getBlock(BB);
@@ -468,21 +473,18 @@ bool GCOVProfiler::emitProfileArcs() {
Value *Counter = Builder.CreateConstInBoundsGEP2_64(Counters, 0,
Edge);
Value *Count = Builder.CreateLoad(Counter);
- Count = Builder.CreateAdd(Count,
- ConstantInt::get(Type::getInt64Ty(*Ctx),1));
+ Count = Builder.CreateAdd(Count, Builder.getInt64(1));
Builder.CreateStore(Count, Counter);
} else if (BranchInst *BI = dyn_cast<BranchInst>(TI)) {
- Value *Sel = Builder.CreateSelect(
- BI->getCondition(),
- ConstantInt::get(Type::getInt64Ty(*Ctx), Edge),
- ConstantInt::get(Type::getInt64Ty(*Ctx), Edge + 1));
+ Value *Sel = Builder.CreateSelect(BI->getCondition(),
+ Builder.getInt64(Edge),
+ Builder.getInt64(Edge + 1));
SmallVector<Value *, 2> Idx;
- Idx.push_back(Constant::getNullValue(Type::getInt64Ty(*Ctx)));
+ Idx.push_back(Builder.getInt64(0));
Idx.push_back(Sel);
Value *Counter = Builder.CreateInBoundsGEP(Counters, Idx);
Value *Count = Builder.CreateLoad(Counter);
- Count = Builder.CreateAdd(Count,
- ConstantInt::get(Type::getInt64Ty(*Ctx),1));
+ Count = Builder.CreateAdd(Count, Builder.getInt64(1));
Builder.CreateStore(Count, Counter);
} else {
ComplexEdgePreds.insert(BB);
@@ -499,10 +501,9 @@ bool GCOVProfiler::emitProfileArcs() {
ComplexEdgePreds, ComplexEdgeSuccs);
GlobalVariable *EdgeState = getEdgeStateValue();
- Type *Int32Ty = Type::getInt32Ty(*Ctx);
for (int i = 0, e = ComplexEdgePreds.size(); i != e; ++i) {
IRBuilder<> Builder(ComplexEdgePreds[i+1]->getTerminator());
- Builder.CreateStore(ConstantInt::get(Int32Ty, i), EdgeState);
+ Builder.CreateStore(Builder.getInt32(i), EdgeState);
}
for (int i = 0, e = ComplexEdgeSuccs.size(); i != e; ++i) {
// call runtime to perform increment
@@ -559,8 +560,8 @@ GlobalVariable *GCOVProfiler::buildEdgeLookupTable(
if (Successors > 1 && !isa<BranchInst>(TI) && !isa<ReturnInst>(TI)) {
for (int i = 0; i != Successors; ++i) {
BasicBlock *Succ = TI->getSuccessor(i);
- IRBuilder<> builder(Succ);
- Value *Counter = builder.CreateConstInBoundsGEP2_64(Counters, 0,
+ IRBuilder<> Builder(Succ);
+ Value *Counter = Builder.CreateConstInBoundsGEP2_64(Counters, 0,
Edge + i);
EdgeTable[((Succs.idFor(Succ)-1) * Preds.size()) +
(Preds.idFor(BB)-1)] = cast<Constant>(Counter);
@@ -580,8 +581,11 @@ GlobalVariable *GCOVProfiler::buildEdgeLookupTable(
}
Constant *GCOVProfiler::getStartFileFunc() {
- FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx),
- Type::getInt8PtrTy(*Ctx), false);
+ Type *Args[] = {
+ Type::getInt8PtrTy(*Ctx), // const char *orig_filename
+ Type::getInt8PtrTy(*Ctx), // const char version[4]
+ };
+ FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), Args, false);
return M->getOrInsertFunction("llvm_gcda_start_file", FTy);
}
@@ -597,9 +601,10 @@ Constant *GCOVProfiler::getIncrementIndirectCounterFunc() {
}
Constant *GCOVProfiler::getEmitFunctionFunc() {
- Type *Args[2] = {
+ Type *Args[3] = {
Type::getInt32Ty(*Ctx), // uint32_t ident
Type::getInt8PtrTy(*Ctx), // const char *function_name
+ Type::getInt8Ty(*Ctx), // uint8_t use_extra_checksum
};
FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), Args, false);
return M->getOrInsertFunction("llvm_gcda_emit_function", FTy);
@@ -610,8 +615,7 @@ Constant *GCOVProfiler::getEmitArcsFunc() {
Type::getInt32Ty(*Ctx), // uint32_t num_counters
Type::getInt64PtrTy(*Ctx), // uint64_t *counters
};
- FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx),
- Args, false);
+ FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), Args, false);
return M->getOrInsertFunction("llvm_gcda_emit_arcs", FTy);
}
@@ -641,9 +645,9 @@ void GCOVProfiler::insertCounterWriteout(
WriteoutF = Function::Create(WriteoutFTy, GlobalValue::InternalLinkage,
"__llvm_gcov_writeout", M);
WriteoutF->setUnnamedAddr(true);
- WriteoutF->addFnAttr(Attributes::NoInline);
+ WriteoutF->addFnAttr(Attribute::NoInline);
if (NoRedZone)
- WriteoutF->addFnAttr(Attributes::NoRedZone);
+ WriteoutF->addFnAttr(Attribute::NoRedZone);
BasicBlock *BB = BasicBlock::Create(*Ctx, "entry", WriteoutF);
IRBuilder<> Builder(BB);
@@ -658,22 +662,23 @@ void GCOVProfiler::insertCounterWriteout(
for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
DICompileUnit CU(CU_Nodes->getOperand(i));
std::string FilenameGcda = mangleName(CU, "gcda");
- Builder.CreateCall(StartFile,
- Builder.CreateGlobalStringPtr(FilenameGcda));
- for (ArrayRef<std::pair<GlobalVariable *, MDNode *> >::iterator
- I = CountersBySP.begin(), E = CountersBySP.end();
- I != E; ++I) {
- DISubprogram SP(I->second);
- intptr_t ident = reinterpret_cast<intptr_t>(I->second);
- Builder.CreateCall2(EmitFunction,
- ConstantInt::get(Type::getInt32Ty(*Ctx), ident),
- Builder.CreateGlobalStringPtr(SP.getName()));
-
- GlobalVariable *GV = I->first;
+ Builder.CreateCall2(StartFile,
+ Builder.CreateGlobalStringPtr(FilenameGcda),
+ Builder.CreateGlobalStringPtr(Version));
+ for (unsigned j = 0, e = CountersBySP.size(); j != e; ++j) {
+ DISubprogram SP(CountersBySP[j].second);
+ Builder.CreateCall3(EmitFunction,
+ Builder.getInt32(j),
+ NoFunctionNamesInData ?
+ Constant::getNullValue(Builder.getInt8PtrTy()) :
+ Builder.CreateGlobalStringPtr(SP.getName()),
+ Builder.getInt8(UseExtraChecksum));
+
+ GlobalVariable *GV = CountersBySP[j].first;
unsigned Arcs =
cast<ArrayType>(GV->getType()->getElementType())->getNumElements();
Builder.CreateCall2(EmitArcs,
- ConstantInt::get(Type::getInt32Ty(*Ctx), Arcs),
+ Builder.getInt32(Arcs),
Builder.CreateConstGEP2_64(GV, 0, 0));
}
Builder.CreateCall(EndFile);
@@ -688,14 +693,14 @@ void GCOVProfiler::insertCounterWriteout(
"__llvm_gcov_init", M);
F->setUnnamedAddr(true);
F->setLinkage(GlobalValue::InternalLinkage);
- F->addFnAttr(Attributes::NoInline);
+ F->addFnAttr(Attribute::NoInline);
if (NoRedZone)
- F->addFnAttr(Attributes::NoRedZone);
+ F->addFnAttr(Attribute::NoRedZone);
BB = BasicBlock::Create(*Ctx, "entry", F);
Builder.SetInsertPoint(BB);
- FTy = FunctionType::get(Type::getInt32Ty(*Ctx),
+ FTy = FunctionType::get(Builder.getInt32Ty(),
PointerType::get(FTy, 0), false);
Constant *AtExitFn = M->getOrInsertFunction("atexit", FTy);
Builder.CreateCall(AtExitFn, WriteoutF);
@@ -709,13 +714,9 @@ void GCOVProfiler::insertIndirectCounterIncrement() {
cast<Function>(GCOVProfiler::getIncrementIndirectCounterFunc());
Fn->setUnnamedAddr(true);
Fn->setLinkage(GlobalValue::InternalLinkage);
- Fn->addFnAttr(Attributes::NoInline);
+ Fn->addFnAttr(Attribute::NoInline);
if (NoRedZone)
- Fn->addFnAttr(Attributes::NoRedZone);
-
- Type *Int32Ty = Type::getInt32Ty(*Ctx);
- Type *Int64Ty = Type::getInt64Ty(*Ctx);
- Constant *NegOne = ConstantInt::get(Int32Ty, 0xffffffff);
+ Fn->addFnAttr(Attribute::NoRedZone);
// Create basic blocks for function.
BasicBlock *BB = BasicBlock::Create(*Ctx, "entry", Fn);
@@ -730,26 +731,27 @@ void GCOVProfiler::insertIndirectCounterIncrement() {
Argument *Arg = Fn->arg_begin();
Arg->setName("predecessor");
Value *Pred = Builder.CreateLoad(Arg, "pred");
- Value *Cond = Builder.CreateICmpEQ(Pred, NegOne);
+ Value *Cond = Builder.CreateICmpEQ(Pred, Builder.getInt32(0xffffffff));
BranchInst::Create(Exit, PredNotNegOne, Cond, BB);
Builder.SetInsertPoint(PredNotNegOne);
// uint64_t *counter = counters[pred];
// if (!counter) return;
- Value *ZExtPred = Builder.CreateZExt(Pred, Int64Ty);
+ Value *ZExtPred = Builder.CreateZExt(Pred, Builder.getInt64Ty());
Arg = llvm::next(Fn->arg_begin());
Arg->setName("counters");
Value *GEP = Builder.CreateGEP(Arg, ZExtPred);
Value *Counter = Builder.CreateLoad(GEP, "counter");
Cond = Builder.CreateICmpEQ(Counter,
- Constant::getNullValue(Int64Ty->getPointerTo()));
+ Constant::getNullValue(
+ Builder.getInt64Ty()->getPointerTo()));
Builder.CreateCondBr(Cond, Exit, CounterEnd);
// ++*counter;
Builder.SetInsertPoint(CounterEnd);
Value *Add = Builder.CreateAdd(Builder.CreateLoad(Counter),
- ConstantInt::get(Int64Ty, 1));
+ Builder.getInt64(1));
Builder.CreateStore(Add, Counter);
Builder.CreateBr(Exit);
@@ -768,9 +770,9 @@ insertFlush(ArrayRef<std::pair<GlobalVariable*, MDNode*> > CountersBySP) {
else
FlushF->setLinkage(GlobalValue::InternalLinkage);
FlushF->setUnnamedAddr(true);
- FlushF->addFnAttr(Attributes::NoInline);
+ FlushF->addFnAttr(Attribute::NoInline);
if (NoRedZone)
- FlushF->addFnAttr(Attributes::NoRedZone);
+ FlushF->addFnAttr(Attribute::NoRedZone);
BasicBlock *Entry = BasicBlock::Create(*Ctx, "entry", FlushF);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-21 16:45:16 +0000