llvm / llvm/offload-test-suite
[Metal][Clang + DXC] Buffer robustness failure in 64 bit Interlocked* tests
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Since Jul 21, 2026.
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Description
In the link below the error is seen:
```
project/build/tools/OffloadTest/test/mtl/Feature/HLSLLib/Output/InterlockedAdd.int64.test.tmp.o
Validation Warning: [ mvk-warn ]
VK_ERROR_FEATURE_NOT_PRESENT: Metal does not support buffer robustness.
gpu-exec: error: Compilation failed due to an interrupted connection: XPC_ERROR_CONNECTION_INTERRUPTED. This error occurred after multiple retries.:
--
********************
```
https://github.com/llvm/offload-test-suite/actions/runs/25528342754/job/74928931859?pr=1163#step:13:117
This was seen on check-hlsl-mtl.
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