2 files changed, 8 insertions, 0 deletions
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceOperands.cpp b/llvm/tools/llvm-reduce/deltas/ReduceOperands.cpp
index 8b64467..79272fe 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceOperands.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceOperands.cpp
@@ -73,6 +73,9 @@ static bool shouldReduceOperand(Use &Op) {
     if (&CB->getCalledOperandUse() == &Op)
       return false;
   }
+  // lifetime intrinsic argument must be an alloca.
+  if (isa<LifetimeIntrinsic>(Op.getUser()))
+    return false;
   return true;
 }
 
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp b/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
index 1865a59..864f695 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
@@ -13,6 +13,7 @@
 #include "llvm/IR/InstIterator.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Utils/Cloning.h"
@@ -49,6 +50,10 @@ static bool canReduceUse(Use &Op) {
     if (&CI->getCalledOperandUse() == &Op)
       return false;
 
+  // lifetime.start/lifetime.end require alloca argument.
+  if (isa<LifetimeIntrinsic>(Op.getUser()))
+    return false;
+
   return true;
 }