While inlining, clone llvm.dbg.func.start intrinsic and adjust
llvm.dbg.region.end instrinsic. This nested llvm.dbg.func.start/llvm.dbg.region.end pair now enables DW_TAG_inlined_subroutine support in code generator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69118 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp
index d7b4bd3..d0fdefa 100644
--- a/lib/Transforms/Utils/CloneFunction.cpp
+++ b/lib/Transforms/Utils/CloneFunction.cpp
@@ -24,6 +24,7 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
#include "llvm/Analysis/ConstantFolding.h"
+#include "llvm/Analysis/DebugInfo.h"
#include "llvm/ADT/SmallVector.h"
#include <map>
using namespace llvm;
@@ -233,10 +234,13 @@
continue;
}
- // Do not clone llvm.dbg.func.start and corresponding llvm.dbg.region.end.
+ // Do not clone llvm.dbg.region.end. It will be adjusted by the inliner.
if (const DbgFuncStartInst *DFSI = dyn_cast<DbgFuncStartInst>(II)) {
- DbgFnStart = DFSI->getSubprogram();
- continue;
+ if (DbgFnStart == NULL) {
+ DISubprogram SP(cast<GlobalVariable>(DFSI->getSubprogram()));
+ if (SP.describes(BB->getParent()))
+ DbgFnStart = DFSI->getSubprogram();
+ }
}
if (const DbgRegionEndInst *DREIS = dyn_cast<DbgRegionEndInst>(II)) {
if (DREIS->getContext() == DbgFnStart)