[LoopVectorize][LoopAccessAnalysis] add newline to debug message

[michaelmaitland]

Summary

A debug message in LoopAccessAnalysis did not have a newline in it, causing printed debug messages to be formatted incorrectly.

[craig.topper]

LGTM

llvm/lib/Analysis/LoopAccessAnalysis.cpp

if (MinDistanceNeeded > static_cast<uint64_t>(Distance)) {
     LLVM_DEBUG(dbgs() << "LAA: Failure because of positive distance "
                       << Distance << '\n');
     return Dependence::Backward;
   }
 
   // Unsafe if the minimum distance needed is greater than max safe distance.
   if (MinDistanceNeeded > MaxSafeDepDistBytes) {
     LLVM_DEBUG(dbgs() << "LAA: Failure because it needs at least "
-                      << MinDistanceNeeded << " size in bytes");
+                      << MinDistanceNeeded << " size in bytes\n");
     return Dependence::Backward;
   }
 
   // Positive distance bigger than max vectorization factor.
   // FIXME: Should use max factor instead of max distance in bytes, which could
   // not handle different types.
   // E.g. Assume one char is 1 byte in memory and one int is 4 bytes.
   //      void foo (int *A, char *B) {