Process DbgDeclareInst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77694 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 18 insertions, 0 deletions

diff --git a/include/llvm/Analysis/DebugInfo.h b/include/llvm/Analysis/DebugInfo.h
index f35bbc1..5e24a57 100644
--- a/include/llvm/Analysis/DebugInfo.h
+++ b/include/llvm/Analysis/DebugInfo.h
@@ -638,6 +638,9 @@ namespace llvm {
     /// processRegionEnd - Process DbgRegionEnd.
     void processRegionEnd(DbgRegionEndInst *DRE);
 
+    /// processDeclare - Process DbgDeclareInst.
+    void processDeclare(DbgDeclareInst *DDI);
+
     /// addCompileUnit - Add compile unit into CUs.
     bool addCompileUnit(DICompileUnit CU);
     
diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index 1899623..5ecfdcd 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -924,6 +924,8 @@ void DebugInfoFinder::processModule(Module &M) {
           processRegionStart(DRS);
         else if (DbgRegionEndInst *DRE = dyn_cast<DbgRegionEndInst>(BI))
           processRegionEnd(DRE);
+        else if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
+          processDeclare(DDI);
       }
   
   for (Module::global_iterator GVI = M.global_begin(), GVE = M.global_end();
@@ -1003,6 +1005,19 @@ void DebugInfoFinder::processRegionEnd(DbgRegionEndInst *DRE) {
   processSubprogram(DISubprogram(SP));
 }
 
+/// processDeclare - Process DbgDeclareInst.
+void DebugInfoFinder::processDeclare(DbgDeclareInst *DDI) {
+  DIVariable DV(cast<GlobalVariable>(DDI->getVariable()));
+  if (DV.isNull())
+    return;
+
+  if (!NodesSeen.insert(DV.getGV()))
+    return;
+
+  addCompileUnit(DV.getCompileUnit());
+  processType(DV.getType());
+}
+
 /// addCompileUnit - Add compile unit into CUs.
 bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
   if (CU.isNull())