commit 0eca2655843e1b79e6c65c7239bce8c9a1509568
author Valentin Clement (バレンタイン クレメン) <clementval@gmail.com> Tue May 21 09:59:35 2024 -0700
committer GitHub <noreply@github.com> Tue May 21 09:59:35 2024 -0700
tree 1e9994a964a5ce367ba1ac8ac9712049183dc663
parent 4636b66de513dfa15da1ba071f279b64ad68903f

[flang][cuda] Fix memory side effects on cuf.data_transfer op (#92928)

The memory side effects on the `cuf.data_transfer` operation were
swapped between the src and dst operands. We read from source and write
to destination not the opposite.

flang/include/flang/Optimizer/Dialect/CUF/CUFOps.td

diff --git a/flang/include/flang/Optimizer/Dialect/CUF/CUFOps.td b/flang/include/flang/Optimizer/Dialect/CUF/CUFOps.td
index 72157bc..1c98b41 100644
--- a/flang/include/flang/Optimizer/Dialect/CUF/CUFOps.td
+++ b/flang/include/flang/Optimizer/Dialect/CUF/CUFOps.td
@@ -154,8 +154,8 @@
     ```
   }];
 
-  let arguments = (ins Arg<AnyReferenceLike, "", [MemWrite]>:$src,
-                       Arg<AnyReferenceLike, "", [MemRead]>:$dst,
+  let arguments = (ins Arg<AnyReferenceLike, "", [MemRead]>:$src,
+                       Arg<AnyReferenceLike, "", [MemWrite]>:$dst,
                        cuf_DataTransferKindAttr:$transfer_kind);
 
   let assemblyFormat = [{