Add replaceAllUsesWith() to FE replace debug info constructs while building complex types.

llvm-svn: 76765

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/DebugInfo.cpp b/llvm/lib/Analysis/DebugInfo.cpp
index 437ff03b327..aa012ef8bcb 100644
--- a/llvm/lib/Analysis/DebugInfo.cpp
+++ b/llvm/lib/Analysis/DebugInfo.cpp
@@ -206,6 +206,18 @@ unsigned DIArray::getNumElements() const {
   return C->getNumOperands();
 }
 
+/// replaceAllUsesWith - Replace all uses of debug info referenced by
+/// this descriptor. After this completes, the current debug info value
+/// is erased.
+void DIDerivedType::replaceAllUsesWith(DIDescriptor &D) {
+  if (isNull())
+    return;
+
+  assert (D.isNull() && "Can not replace with null");
+  getGV()->replaceAllUsesWith(D.getGV());
+  getGV()->eraseFromParent();
+}
+
 /// Verify - Verify that a compile unit is well formed.
 bool DICompileUnit::Verify() const {
   if (isNull())