[clang] [llvm] Minimal support of floating-point operand bundles (PR #135658)

[Matt Arsenault via llvm-commits]

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@@ -61,6 +72,33 @@ std::optional<StringRef> convertRoundingModeToStr(RoundingMode UseRounding) {
   return RoundingStr;
 }
 
+std::optional<StringRef> convertRoundingModeToBundle(RoundingMode UseRounding) {
+  std::optional<StringRef> RoundingStr;
+  switch (UseRounding) {
+  case RoundingMode::Dynamic:
+    RoundingStr = "dynamic";
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arsenm wrote:

directly return instead of break 

https://github.com/llvm/llvm-project/pull/135658