[mlir][AffineStructures] Explicitly initialize variables to avoid use of uninitialize...

diff --git a/mlir/lib/Analysis/AffineStructures.cpp b/mlir/lib/Analysis/AffineStructures.cpp
index 17e380d..b43cd6b 100644 (file)
--- a/mlir/lib/Analysis/AffineStructures.cpp
+++ b/mlir/lib/Analysis/AffineStructures.cpp
@@ -2075,7 +2075,7 @@ Optional<int64_t> FlatAffineConstraints::getConstantBoundOnDimSize(
                                /*num=*/getNumDimIds());
 
   Optional<int64_t> minDiff = None;
-  unsigned minLbPosition, minUbPosition;
+  unsigned minLbPosition = 0, minUbPosition = 0;
   for (auto ubPos : ubIndices) {
     for (auto lbPos : lbIndices) {
       // Look for a lower bound and an upper bound that only differ by a