Revert r302469 "Make it illegal for two Functions to point to the same DISubprogram"

This caused PR32977.

Original commit message:

> Make it illegal for two Functions to point to the same DISubprogram
>
> As recently discussed on llvm-dev [1], this patch makes it illegal for
> two Functions to point to the same DISubprogram and updates
> FunctionCloner to also clone the debug info of a function to conform
> to the new requirement. To simplify the implementation it also factors
> out the creation of inlineAt locations from the Inliner into a
> general-purpose utility in DILocation.
>
> [1] http://lists.llvm.org/pipermail/llvm-dev/2017-May/112661.html
> <rdar://problem/31926379>
>
> Differential Revision: https://reviews.llvm.org/D32975

llvm-svn: 302533

1 files changed, 0 insertions, 16 deletions

diff --git a/llvm/include/llvm/IR/DebugLoc.h b/llvm/include/llvm/IR/DebugLoc.h
index aa74f361cda..202be3da14d 100644
--- a/llvm/include/llvm/IR/DebugLoc.h
+++ b/llvm/include/llvm/IR/DebugLoc.h
@@ -80,22 +80,6 @@ namespace llvm {
     static DebugLoc get(unsigned Line, unsigned Col, const MDNode *Scope,
                         const MDNode *InlinedAt = nullptr);
 
-    enum { ReplaceLastInlinedAt = true };
-    /// Rebuild the entire inlined-at chain for this instruction so that the top of
-    /// the chain now is inlined-at the new call site.
-    /// \param   InlinedAt    The new outermost inlined-at in the chain.
-    /// \param   ReplaceLast  Replace the last location in the inlined-at chain.
-    static DebugLoc appendInlinedAt(DebugLoc DL, DILocation *InlinedAt,
-                                    LLVMContext &Ctx,
-                                    DenseMap<const MDNode *, MDNode *> &Cache,
-                                    bool ReplaceLast = false);
-
-    /// Reparent all debug locations referenced by \c I that belong to \c OrigSP
-    /// to become (possibly indirect) children of \c NewSP.
-    static void reparentDebugInfo(Instruction &I, DISubprogram *OrigSP,
-                                  DISubprogram *NewSP,
-                                  DenseMap<const MDNode *, MDNode *> &Cache);
-
     unsigned getLine() const;
     unsigned getCol() const;
     MDNode *getScope() const;