[llvm-branch-commits] [llvm] [LoopVectorize] Support vectorization of compressing patterns (PR #214491)

[Benjamin Maxwell via llvm-branch-commits]

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@@ -48,6 +48,10 @@ AllowStridedPointerIVs("lv-strided-pointer-ivs", cl::init(false), cl::Hidden,
                        cl::desc("Enable recognition of non-constant strided "
                                 "pointer induction variables."));
 
+static cl::opt<bool> EnableMonotonicPatterns(
+    "lv-monotonic-patterns", cl::init(false), cl::Hidden,
+    cl::desc("Enable recognition of monotonic patterns."));
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MacDue wrote:

My plan was to do that as an immediate follow-up once this lands. Just so if there's any failures only the flag change needs reverting, then we can fix the issues and flip the flag again. 

https://github.com/llvm/llvm-project/pull/214491