[llvm-branch-commits] [llvm] [DA] Consolidate the core logic of the Weak Zero SIV tests (NFCI) (PR #185577)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/include/llvm/Analysis/DependenceAnalysis.h llvm/lib/Analysis/DependenceAnalysis.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Analysis/DependenceAnalysis.cpp b/llvm/lib/Analysis/DependenceAnalysis.cpp
index e149657ae..8beefedef 100644
--- a/llvm/lib/Analysis/DependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/DependenceAnalysis.cpp
@@ -1906,7 +1906,11 @@ bool DependenceInfo::weakZeroSrcSIVtest(const SCEV *SrcConst,
   assert(0 < Level && Level <= MaxLevels && "Level out of range");
   Level--;
 
-  // We have analyzed a dependence from Src to Dst, so \c Result may represent a dependence in that direction. However, \c weakZeroSIVtestImpl will analyze a dependence from \c Dst to \c SrcConst. To keep the consistency, we need to negate the current result before passing it to \c weakZeroSIVtestImpl, and negate it back after that.
+  // We have analyzed a dependence from Src to Dst, so \c Result may represent a
+  // dependence in that direction. However, \c weakZeroSIVtestImpl will analyze
+  // a dependence from \c Dst to \c SrcConst. To keep the consistency, we need
+  // to negate the current result before passing it to \c weakZeroSIVtestImpl,
+  // and negate it back after that.
   Result.negate(*SE);
   bool Res = weakZeroSIVtestImpl(Dst, SrcConst, Level, Result);
   Result.negate(*SE);

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https://github.com/llvm/llvm-project/pull/185577