[llvm] [Offload][AMDGPU] Fix olQueryQueue uninitialized output parameter (PR #178464)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-offload

Author: puneeth_aditya_5656 (mugiwaraluffy56)

<details>
<summary>Changes</summary>

## Summary
- Fix uninitialized output parameter in `olQueryQueue_impl` when `Queue->AsyncInfo->Queue` is null
- Set `IsQueueWorkCompleted` to `true` when no underlying queue exists (no pending work)
- Resolves test failure on AMDGPU for `olQueryQueueTest.SuccessEmptyAsyncQueueCheckResult`

Fixes #<!-- -->178462.

## Test plan
- [x] Fixed `OffloadAPI/queue.unittests/olQueryQueueTest/SuccessEmptyAsyncQueueCheckResult/AMDGPU_AMD_Radeon_RX_7700_XT_0` test
- [ ] CI tests pass

---
Full diff: https://github.com/llvm/llvm-project/pull/178464.diff


1 Files Affected:

- (modified) offload/liboffload/src/OffloadImpl.cpp (+3) 


``````````diff
diff --git a/offload/liboffload/src/OffloadImpl.cpp b/offload/liboffload/src/OffloadImpl.cpp
index 6e429a574bfe2..3fb587309022e 100644
--- a/offload/liboffload/src/OffloadImpl.cpp
+++ b/offload/liboffload/src/OffloadImpl.cpp
@@ -1254,6 +1254,9 @@ Error olQueryQueue_impl(ol_queue_handle_t Queue, bool *IsQueueWorkCompleted) {
     if (auto Err = Queue->Device->Device->queryAsync(Queue->AsyncInfo, false,
                                                      IsQueueWorkCompleted))
       return Err;
+  } else if (IsQueueWorkCompleted) {
+    // No underlying queue means there's no work to complete
+    *IsQueueWorkCompleted = true;
   }
   return Error::success();
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/178464