Do not clone llvm.dbg.func.start and corresponding llvm.dbg.region.end during inlining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64209 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp
index fe2a606..50340d1 100644
--- a/lib/Transforms/Utils/CloneFunction.cpp
+++ b/lib/Transforms/Utils/CloneFunction.cpp
@@ -17,6 +17,7 @@
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
+#include "llvm/IntrinsicInst.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Function.h"
#include "llvm/Support/CFG.h"
@@ -181,7 +182,7 @@
const char *NameSuffix;
ClonedCodeInfo *CodeInfo;
const TargetData *TD;
-
+ Value *DbgFnStart;
public:
PruningFunctionCloner(Function *newFunc, const Function *oldFunc,
DenseMap<const Value*, Value*> &valueMap,
@@ -190,7 +191,7 @@
ClonedCodeInfo *codeInfo,
const TargetData *td)
: NewFunc(newFunc), OldFunc(oldFunc), ValueMap(valueMap), Returns(returns),
- NameSuffix(nameSuffix), CodeInfo(codeInfo), TD(td) {
+ NameSuffix(nameSuffix), CodeInfo(codeInfo), TD(td), DbgFnStart(NULL) {
}
/// CloneBlock - The specified block is found to be reachable, clone it and
@@ -231,7 +232,17 @@
ValueMap[II] = C;
continue;
}
-
+
+ // Do not clone llvm.dbg.func.start and corresponding llvm.dbg.region.end.
+ if (const DbgFuncStartInst *DFSI = dyn_cast<DbgFuncStartInst>(II)) {
+ DbgFnStart = DFSI->getSubprogram();
+ continue;
+ }
+ if (const DbgRegionEndInst *DREIS = dyn_cast<DbgRegionEndInst>(II)) {
+ if (DREIS->getContext() == DbgFnStart)
+ continue;
+ }
+
Instruction *NewInst = II->clone();
if (II->hasName())
NewInst->setName(II->getName()+NameSuffix);