[clang] [CIR] Add SCF ResumeOp (PR #170042)

[Andy Kaylor via cfe-commits]

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@@ -898,6 +898,36 @@ def CIR_ContinueOp : CIR_Op<"continue", [Terminator]> {
   let hasLLVMLowering = false;
 }
 
+//===----------------------------------------------------------------------===//
+// Resume
+//===----------------------------------------------------------------------===//
+
+def CIR_SCFResumeOp : CIR_Op<"scf.resume", [
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andykaylor wrote:

There is some precedent set by `SwitchFlatOp` (`cir.switch.flat`), which is the flattened form of `SwitchOp`. How about `cir.resume` for the structured version and `cir.resume.flat` after flattening?

https://github.com/llvm/llvm-project/pull/170042