[flang-commits] [flang] [Flang][OpenMP][MLIR] Add attach and ref map type lowering to MLIR (PR #177301)

[Pranav Bhandarkar via flang-commits]

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@@ -1507,6 +1506,34 @@ bool ClauseProcessor::processMap(
         mapTypeBits |= mlir::omp::ClauseMapFlags::ompx_hold;
     }
 
+    if (refMod) {
+      switch (*refMod) {
+      case Map::RefModifier::RefPtee:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::ref_ptee;
+        break;
+      case Map::RefModifier::RefPtr:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::ref_ptr;
+        break;
+      case Map::RefModifier::RefPtrPtee:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::ref_ptr_ptee;
+        break;
+      }
+    }
+
+    if (attachMod) {
+      switch (*attachMod) {
+      case Map::AttachModifier::Always:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::attach_always;
+        break;
+      case Map::AttachModifier::Never:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::attach_never;
+        break;
+      case Map::AttachModifier::Auto:
+        mapTypeBits |= mlir::omp::ClauseMapFlags::attach_auto;
+        break;
+      }
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bhandarkar-pranav wrote:

minor nit. A default with `llvm_unreachable` would be in good order, perhaps?

https://github.com/llvm/llvm-project/pull/177301