[Mlir-commits] [llvm] [mlir] [IR][ModRef] Introduce `errno` memory location (PR #120783)

[Nikita Popov]

================
@@ -139,6 +141,16 @@ template <typename LocationEnum> class MemoryEffectsBase {
     return MemoryEffectsBase(Location::InaccessibleMem, MR);
   }
 
+  /// Create MemoryEffectsBase that can only access errno memory.
+  static MemoryEffectsBase errnoMemOnly(ModRefInfo MR = ModRefInfo::ModRef) {
+    return MemoryEffectsBase(Location::ErrnoMem, MR);
+  }
+
+  /// Create MemoryEffectsBase that can only access default memory.
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nikic wrote:

```suggestion
  /// Create MemoryEffectsBase that can only access other memory.
```

https://github.com/llvm/llvm-project/pull/120783