IRGen: Add fixed underlying type to enum to avoid UB

AnthonyLatsis · AnthonyLatsis · commit 3e54e64b5dfb · 2025-11-24T08:30:12.000Z
See llvm/llvm-project#150308.
diff --git a/lib/IRGen/GenCoro.cpp b/lib/IRGen/GenCoro.cpp
@@ -289,7 +289,7 @@ class GetDeallocThroughFn {
     ///   TaskAllocator Allocator;
     /// }
     struct PrivateLayout {
-      enum Kind {
+      enum Kind : uint8_t {
         Old32Bit,
         Old64Bit,
         New32BitSansEscalation,
