IR: Use the new DebugLoc API, NFC

Update lib/IR and lib/Bitcode to use the new `DebugLoc` API.  Added an
explicit conversion to `bool` (avoiding a conversion to `MDLocation`),
since a couple of these use cases need to handle broken code.

llvm-svn: 233585

1 files changed, 4 insertions, 6 deletions

diff --git a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
index 549e94fc96a..a450f697f20 100644
--- a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -373,12 +373,10 @@ ValueEnumerator::ValueEnumerator(const Module &M)
         for (unsigned i = 0, e = MDs.size(); i != e; ++i)
           EnumerateMetadata(MDs[i].second);
 
-        if (!I.getDebugLoc().isUnknown()) {
-          MDNode *Scope, *IA;
-          I.getDebugLoc().getScopeAndInlinedAt(Scope, IA, I.getContext());
-          if (Scope) EnumerateMetadata(Scope);
-          if (IA) EnumerateMetadata(IA);
-        }
+        // Don't enumerate the location directly -- it has a special record
+        // type -- but enumerate its operands.
+        if (MDLocation *L = I.getDebugLoc())
+          EnumerateMDNodeOperands(L);
       }
   }