[Mlir-commits] [mlir] [mlir][Transforms] Fix crash in `CFGToSCF` when conversion fails (PR #173590)

[NohHyeon Kwon]

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@@ -0,0 +1,27 @@
+// RUN: not mlir-opt %s -lift-cf-to-scf 2>&1 | FileCheck %s
+
+// This test verifies that the pass does not crash when encountering unsupported
+// control flow operations within a cycle (e.g., SPIR-V loops). (issue #173566)
+// It ensures that temporary regions are cleaned up correctly upon failure.
+
+// CHECK: Cannot convert unknown control flow op to structured control flow
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swote-git wrote:

I'll fix it.

https://github.com/llvm/llvm-project/pull/173590