[clang] [flang] [flang] Add -f[no-]slp-vectorize flags (PR #132801)

[Tarun Prabhu via cfe-commits]

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@@ -4032,11 +4032,14 @@ def : Flag<["-"], "ftree-vectorize">, Alias<fvectorize>;
 def : Flag<["-"], "fno-tree-vectorize">, Alias<fno_vectorize>;
 }
 
+let Visibility = [ClangOption, FlangOption] in {
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tarunprabhu wrote:

I think we should merge this with the visibility block for `fvectorize` above. The options are related anyway.

https://github.com/llvm/llvm-project/pull/132801