intel / intel/llvm

ESIMD/lsc/lsc_usm_store_u32_pvc.cpp fails on PVC in pre-commit

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bug confirmed esimd
Dominant language
LLVM
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Description

### Describe the bug

See: https://github.com/intel/llvm/actions/runs/28180854895/job/83477880224?pr=22435
```
# RUN: at line 10
env ONEAPI_DEVICE_SELECTOR=level_zero:gpu /__w/llvm/llvm/build-e2e/ESIMD/lsc/Output/lsc_usm_store_u32_pvc.cpp.tmp.out
# executed command: env ONEAPI_DEVICE_SELECTOR=level_zero:gpu /__w/llvm/llvm/build-e2e/ESIMD/lsc/Output/lsc_usm_store_u32_pvc.cpp.tmp.out
# .---command stdout------------
# | Running case #0 on Intel(R) Data Center GPU Max 1100
# | Running case #1 on Intel(R) Data Center GPU Max 1100
# | Running case #2 on Intel(R) Data Center GPU Max 1100
# | Running case #3 on Intel(R) Data Center GPU Max 1100
# | Running case #4 on Intel(R) Data Center GPU Max 1100
# | Running case #5 on Intel(R) Data Center GPU Max 1100
# | Running case #8 on Intel(R) Data Center GPU Max 1100
# | Running case #9 on Intel(R) Data Center GPU Max 1100
# | Running case #10 on Intel(R) Data Center GPU Max 1100
# | Running case #11 on Intel(R) Data Center GPU Max 1100
# | Running case #12 on Intel(R) Data Center GPU Max 1100
# | Running case #13 on Intel(R) Data Center GPU Max 1100
# | Running case #14 on Intel(R) Data Center GPU Max 1100
# | Running case #15 on Intel(R) Data Center GPU Max 1100
# | out[2] = 0x78a13be4 vs etalon = 0x7fffe41d
# | Case #15 FAILED
# | Running case #16 on Intel(R) Data Center GPU Max 1100
# | Running case #17 on Intel(R) Data Center GPU Max 1100
# | Running case #20 on Intel(R) Data Center GPU Max 1100
# | Running case #21 on Intel(R) Data Center GPU Max 1100
# | Running case #22 on Intel(R) Data Center GPU Max 1100
# | Running case #23 on Intel(R) Data Center GPU Max 1100
# | FAILED
# `-----------------------------
# error: command failed with exit status: 1
```

### To reproduce

1. Include a code snippet that is as short as possible
2. Specify the command which should be used to compile the program
3. Specify the command which should be used to launch the program
4. Indicate what is wrong and what was expected

### Environment

- OS: [e.g Windows/Linux]
- Target device and vendor: [e.g. Intel GPU]
- DPC++ version: [e.g. commit hash or output of `clang++ --version`]
- Dependencies version: [e.g. the output of `sycl-ls --verbose`]

### Additional context

_No response_

Contributor guide

Open the contributing guide

Research direction

Start with the ESIMD/lsc/lsc_usm_store_u32_pvc.cpp test and the linked pre-commit job, then reproduce its level_zero:gpu run on an Intel Data Center GPU Max 1100. Investigate why case #15 produces a different value from the etalon; done means the test passes on PVC and the pre-commit job no longer fails.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
compilers, testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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