Recursively remove dead argument while removing llvm.dbg.declare intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65971 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/StripSymbols.cpp b/lib/Transforms/IPO/StripSymbols.cpp
index 3906b51..fbb2075 100644
--- a/lib/Transforms/IPO/StripSymbols.cpp
+++ b/lib/Transforms/IPO/StripSymbols.cpp
@@ -28,6 +28,7 @@
#include "llvm/Pass.h"
#include "llvm/ValueSymbolTable.h"
#include "llvm/TypeSymbolTable.h"
+#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Support/Compiler.h"
#include "llvm/ADT/SmallPtrSet.h"
using namespace llvm;
@@ -268,8 +269,8 @@
if (Arg1->use_empty()) {
if (Constant *C = dyn_cast<Constant>(Arg1))
DeadConstants.push_back(C);
- if (Instruction *I = dyn_cast<Instruction>(Arg1))
- I->eraseFromParent();
+ else
+ RecursivelyDeleteTriviallyDeadInstructions(Arg1, NULL);
}
if (Arg2->use_empty())
if (Constant *C = dyn_cast<Constant>(Arg2))