First bitcase use may not lead to a dbg.declare intrinsic. Iterate uses until one find's dbg.declare intrinsic.

Patch by Sunae Seo.

llvm-svn: 85518

1 files changed, 4 insertions, 3 deletions

diff --git a/llvm/lib/Analysis/DebugInfo.cpp b/llvm/lib/Analysis/DebugInfo.cpp
index 1349f2778aa..2a6e04eb743 100644
--- a/llvm/lib/Analysis/DebugInfo.cpp
+++ b/llvm/lib/Analysis/DebugInfo.cpp
@@ -1304,9 +1304,10 @@ namespace llvm {
       // Look for the bitcast.
       for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
             I != E; ++I)
-        if (isa<BitCastInst>(I))
-          return findDbgDeclare(*I, false);
-
+        if (isa<BitCastInst>(I)) {
+          const DbgDeclareInst *DDI = findDbgDeclare(*I, false);
+          if (DDI) return DDI;
+        }
       return 0;
     }