[clang] [llvm] Implement operand bundles for floating-point operations (PR #109798)

[Andy Kaylor via llvm-commits]

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@@ -47,6 +47,15 @@ enum class RoundingMode : int8_t {
   Invalid = -1    ///< Denotes invalid value.
 };
 
+inline bool isValidRoundingMode(int X) {
+  return X >= 0 && X <= static_cast<int>(RoundingMode::Dynamic);
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andykaylor wrote:

This isn't a sufficient check. For instance, 5 and 6 are invalid but are less than RoundingMode::Dynamic. I don't know why RoundingMode::Dynamic is defined the way it is, but it's set to 7.

https://github.com/llvm/llvm-project/pull/109798