[flang-commits] [clang] [flang] [flang] Add -f[no-]vectorize flags (PR #119718)

[Tarun Prabhu via flang-commits]

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@@ -6980,3 +6980,37 @@ void driver::applyOverrideOptions(SmallVectorImpl<const char *> &Args,
       ++S;
   }
 }
+
+/// Vectorize at all optimization levels greater than 1 except for -Oz.
+/// For -Oz the loop vectorizer is disabled, while the slp vectorizer is
+/// enabled.
+bool driver::shouldEnableVectorizerAtOLevel(const ArgList &Args,
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tarunprabhu wrote:

Since this was originally in the clang toolchain file, it may be better to move it to `clang/lib/Driver/ToolChains/CommonArgs.cpp`. This [has been done](https://github.com/llvm/llvm-project/pull/110132) for other code that is now shared between clang and flang. 

https://github.com/llvm/llvm-project/pull/119718