[mlir][Transforms][NFC] Improve dialect conversion documentation

[matthias-springer]

No description provided.

[llvmbot]

@llvm/pr-subscribers-mlir-core

@llvm/pr-subscribers-mlir

Author: Matthias Springer (matthias-springer)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/94736.diff

1 Files Affected:

• (modified) mlir/include/mlir/Transforms/DialectConversion.h (+3-2)

diff --git a/mlir/include/mlir/Transforms/DialectConversion.h b/mlir/include/mlir/Transforms/DialectConversion.h
index 83198c9b0db54..f6c51499f271c 100644
--- a/mlir/include/mlir/Transforms/DialectConversion.h
+++ b/mlir/include/mlir/Transforms/DialectConversion.h
@@ -1088,8 +1088,9 @@ struct ConversionConfig {
 
   /// An optional listener that is notified about all IR modifications in case
   /// dialect conversion succeeds. If the dialect conversion fails and no IR
-  /// modifications are visible (i.e., they were all rolled back), no
-  /// notifications are sent.
+  /// modifications are visible (i.e., they were all rolled back), or if the
+  /// dialect conversion is an "analysis conversion", no notifications are
+  /// sent (apart from `notifyPatternBegin`/notifyPatternEnd`).
   ///
   /// Note: Notifications are sent in a delayed fashion, when the dialect
   /// conversion is guaranteed to succeed. At that point, some IR modifications