small other fixes

Author: sebpop

llvm/lib/Analysis/DependenceAnalysis.cpp

@@ -3510,11 +3510,10 @@ DependenceInfo::depends(Instruction *Src, Instruction *Dst,
                                         SCEVUnionPredicate(Assume, *SE));
   }
 
-  if (!Assume.empty() && !UnderRuntimeAssumptions) {
-    // Runtime assumptions needed but not allowed.
+  // Runtime assumptions needed but not allowed.
+  if (!Assume.empty() && !UnderRuntimeAssumptions)
     return std::make_unique<Dependence>(Src, Dst,
                                         SCEVUnionPredicate(Assume, *SE));
-  }
 
   unsigned Pairs = 1;
   SmallVector<Subscript, 2> Pair(Pairs);

llvm/test/Analysis/DependenceAnalysis/zero-coefficient.ll

@@ -2,7 +2,7 @@
 ; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
 ; RUN: | FileCheck %s
 
-; Test case for bug fix where Strong SIV test incorrectly concludes "no dependence"
+; Test case for bug #149991 where Strong SIV test incorrectly concludes "no dependence"
 ; when the coefficient is symbolic (unknown at compile time) and delta is zero.
 ;
 ; In this case, the array access is A[k*i] with both src and dst at the same