[flang-commits] [flang] [flang][Transforms] Add `SelectOpsConversion` pass (PR #212977)

[Kareem Ergawy via flang-commits]

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@@ -76,6 +76,22 @@ def AffineDialectDemotion : Pass<"demote-affine", "::mlir::func::FuncOp"> {
   ];
 }
 
+def SelectOpsConversion : Pass<"fir-select-ops-conversion"> {
+  let summary = "Lower fir.select / fir.select_case / fir.select_rank to cf.*";
+
+  let description = [{
+    Lowers FIR multi-way branch terminators to control-flow dialect ops
+    (`cf.switch`, `cf.cond_br`, `cf.br`), keeping the same CFG shape (block
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ergawy wrote:

Compared to the old LLVM targeting patterns. But indeed no need to add that since these patterns will be removed in any case.

https://github.com/llvm/llvm-project/pull/212977