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Add an interface to attach debugging information with an instruction.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82062 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-09-16 18:16:11 +00:00
parent 937b1e92a9
commit 95c1984e6b
1 changed files with 24 additions and 6 deletions
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30
include/llvm/Support/IRBuilder.h
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@ -20,6 +20,7 @@
#include "llvm/GlobalAlias.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Function.h"
#include "llvm/Metadata.h"
#include "llvm/LLVMContext.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/ConstantFolder.h"
@ -60,35 +61,38 @@ template<bool preserveNames = true, typename T = ConstantFolder,
class IRBuilder : public Inserter {
BasicBlock *BB;
BasicBlock::iterator InsertPt;
MDKindID MDKind;
MDNode *CurLocation;
LLVMContext &Context;
T Folder;
public:
IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter())
: Inserter(I), Context(C), Folder(F) {
: Inserter(I), MDKind(0), CurLocation(0), Context(C), Folder(F) {
ClearInsertionPoint();
}
explicit IRBuilder(LLVMContext &C) : Context(C), Folder(C) {
explicit IRBuilder(LLVMContext &C)
: MDKind(0), CurLocation(0), Context(C), Folder(C) {
ClearInsertionPoint();
}
explicit IRBuilder(BasicBlock *TheBB, const T &F)
: Context(TheBB->getContext()), Folder(F) {
: MDKind(0), CurLocation(0), Context(TheBB->getContext()), Folder(F) {
SetInsertPoint(TheBB);
}
explicit IRBuilder(BasicBlock *TheBB)
: Context(TheBB->getContext()), Folder(Context) {
: MDKind(0), CurLocation(0), Context(TheBB->getContext()), Folder(Context) {
SetInsertPoint(TheBB);
}
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F)
: Context(TheBB->getContext()), Folder(F) {
: MDKind(0), CurLocation(0), Context(TheBB->getContext()), Folder(F) {
SetInsertPoint(TheBB, IP);
}
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP)
: Context(TheBB->getContext()), Folder(Context) {
: MDKind(0), CurLocation(0), Context(TheBB->getContext()), Folder(Context) {
SetInsertPoint(TheBB, IP);
}
@ -127,10 +131,24 @@ public:
InsertPt = IP;
}
/// SetCurrentLocation - This specifies the location information used
/// by debugging information.
void SetCurrentLocation(MDNode *L) {
if (MDKind == 0) {
Context.getMetadata().RegisterMDKind("dbg");
MDKind = Context.getMetadata().getMDKind("dbg");
}
CurLocation = L;
}
MDNode *getCurrentLocation() const { return CurLocation; }
/// Insert - Insert and return the specified instruction.
template<typename InstTy>
InstTy *Insert(InstTy *I, const Twine &Name = "") const {
this->InsertHelper(I, Name, BB, InsertPt);
if (CurLocation)
Context.getMetadata().setMD(MDKind, CurLocation, I);
return I;
}