1 files changed, 9 insertions, 9 deletions

diff --git a/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp b/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
index 57e36e5b9b90..9590fbbb1994 100644
--- a/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
+++ b/contrib/llvm-project/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp
@@ -22,7 +22,6 @@
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/ScalarEvolutionExpressions.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
-#include "llvm/IR/CFG.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Module.h"
@@ -30,9 +29,7 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Transforms/Utils.h"
-#include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"
-#include "llvm/Transforms/Utils/ValueMapper.h"
 
 #define DEBUG_TYPE "loop-data-prefetch"
 
@@ -236,15 +233,14 @@ struct Prefetch {
   /// The address formula for this prefetch as returned by ScalarEvolution.
   const SCEVAddRecExpr *LSCEVAddRec;
   /// The point of insertion for the prefetch instruction.
-  Instruction *InsertPt;
+  Instruction *InsertPt = nullptr;
   /// True if targeting a write memory access.
-  bool Writes;
+  bool Writes = false;
   /// The (first seen) prefetched instruction.
-  Instruction *MemI;
+  Instruction *MemI = nullptr;
 
   /// Constructor to create a new Prefetch for \p I.
-  Prefetch(const SCEVAddRecExpr *L, Instruction *I)
-      : LSCEVAddRec(L), InsertPt(nullptr), Writes(false), MemI(nullptr) {
+  Prefetch(const SCEVAddRecExpr *L, Instruction *I) : LSCEVAddRec(L) {
     addInstruction(I);
   };
 
@@ -303,7 +299,11 @@ bool LoopDataPrefetch::runOnLoop(Loop *L) {
     }
     Metrics.analyzeBasicBlock(BB, *TTI, EphValues);
   }
-  unsigned LoopSize = Metrics.NumInsts;
+
+  if (!Metrics.NumInsts.isValid())
+    return MadeChange;
+
+  unsigned LoopSize = *Metrics.NumInsts.getValue();
   if (!LoopSize)
     LoopSize = 1;