DebugInfo: Allow DebugLocs to be constructed from const

Allow `const`-qualified pointers to be used to construct `DebugLoc`s, as
a convenience.

llvm-svn: 235115

1 files changed, 7 insertions, 5 deletions

diff --git a/llvm/lib/IR/DebugLoc.cpp b/llvm/lib/IR/DebugLoc.cpp
index d9229483d05..4cf7e9e34e1 100644
--- a/llvm/lib/IR/DebugLoc.cpp
+++ b/llvm/lib/IR/DebugLoc.cpp
@@ -16,8 +16,8 @@ using namespace llvm;
 //===----------------------------------------------------------------------===//
 // DebugLoc Implementation
 //===----------------------------------------------------------------------===//
-DebugLoc::DebugLoc(MDLocation *L) : Loc(L) {}
-DebugLoc::DebugLoc(MDNode *L) : Loc(L) {}
+DebugLoc::DebugLoc(const MDLocation *L) : Loc(const_cast<MDLocation *>(L)) {}
+DebugLoc::DebugLoc(const MDNode *L) : Loc(const_cast<MDNode *>(L)) {}
 
 MDLocation *DebugLoc::get() const {
   return cast_or_null<MDLocation>(Loc.get());
@@ -56,13 +56,15 @@ DebugLoc DebugLoc::getFnDebugLoc() const {
   return DebugLoc();
 }
 
-DebugLoc DebugLoc::get(unsigned Line, unsigned Col,
-                       MDNode *Scope, MDNode *InlinedAt) {
+DebugLoc DebugLoc::get(unsigned Line, unsigned Col, const MDNode *Scope,
+                       const MDNode *InlinedAt) {
   // If no scope is available, this is an unknown location.
   if (!Scope)
     return DebugLoc();
 
-  return MDLocation::get(Scope->getContext(), Line, Col, Scope, InlinedAt);
+  return MDLocation::get(Scope->getContext(), Line, Col,
+                         const_cast<MDNode *>(Scope),
+                         const_cast<MDNode *>(InlinedAt));
 }
 
 void DebugLoc::dump() const {