[QC][Vulkan] Feature/CBuffer/scalars-16bit.test fails on Qualcomm under Vulkan #576
Description
Test Feature/CBuffer/scalars-16bit.test fails on Qualcomm under Vulkan regardless of compiler.
╭────┬──────────────────────┬─────────────┬────────────────────────────────┬─────────────┬────────────────────────────────────╮
│ # │ timestamp │ run-id │ workflow │ status │ test │
├────┼──────────────────────┼─────────────┼────────────────────────────────┼─────────────┼────────────────────────────────────┤
│ 0 │ 2025-12-03T12:12:15Z │ 19893397859 │ Windows Vulkan QC Clang │ FAIL │ Feature/CBuffer/scalars-16bit.test │
│ 1 │ 2025-12-03T16:02:51Z │ 19900331509 │ Windows Vulkan QC DXC │ FAIL │ Feature/CBuffer/scalars-16bit.test │
│ 2 │ 2025-12-03T12:08:22Z │ 19893292066 │ Windows D3D12 AMD Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 3 │ 2025-12-03T12:04:06Z │ 19893177429 │ Windows D3D12 Warp Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 4 │ 2025-12-03T16:05:33Z │ 19900415532 │ Windows D3D12 Intel Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 5 │ 2025-12-03T16:06:34Z │ 19900448339 │ Windows D3D12 NVIDIA Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 6 │ 2025-12-03T16:01:09Z │ 19900277973 │ Windows D3D12 QC Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 7 │ 2025-12-03T16:06:54Z │ 19900458677 │ Windows ARM64 D3D12 Warp Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 8 │ 2025-12-03T12:01:07Z │ 19893095472 │ Windows D3D12 AMD DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 9 │ 2025-12-03T12:11:56Z │ 19893389610 │ Windows D3D12 Warp DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 10 │ 2025-12-03T16:01:07Z │ 19900277054 │ Windows D3D12 Intel DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 11 │ 2025-12-03T16:04:14Z │ 19900374266 │ Windows D3D12 NVIDIA DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 12 │ 2025-12-03T16:09:20Z │ 19900532672 │ Windows D3D12 QC DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 13 │ 2025-12-03T16:01:03Z │ 19900274536 │ Windows ARM64 D3D12 Warp DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 14 │ 2025-12-03T12:08:49Z │ 19893304732 │ Windows Vulkan AMD Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 15 │ 2025-12-03T16:06:03Z │ 19900431355 │ Windows Vulkan Intel Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 16 │ 2025-12-03T16:02:46Z │ 19900328787 │ Windows Vulkan NVIDIA Clang │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 17 │ 2025-12-03T12:07:27Z │ 19893268500 │ Windows Vulkan AMD DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 18 │ 2025-12-03T16:02:39Z │ 19900325563 │ Windows Vulkan Intel DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 19 │ 2025-12-03T14:06:08Z │ 19896620228 │ Windows Vulkan NVIDIA DXC │ PASS │ Feature/CBuffer/scalars-16bit.test │
│ 20 │ 2025-12-03T07:36:55Z │ 19886107005 │ macOS Metal Clang │ UNSUPPORTED │ Feature/CBuffer/scalars-16bit.test │
│ 21 │ 2025-12-03T08:11:39Z │ 19886885646 │ macOS Metal DXC │ UNSUPPORTED │ Feature/CBuffer/scalars-16bit.test │
╰────┴──────────────────────┴─────────────┴────────────────────────────────┴─────────────┴────────────────────────────────────╯
Logs: https://github.com/llvm/offload-test-suite/actions/runs/19893397859/job/57017578531#step:12:189
Both Clang and DXC agree on the same output (all zeros) on Qualcomm under Vulkan.
FAIL: OffloadTest-clang-vk :: Feature/CBuffer/scalars-16bit.test (39 of 294)
******************** TEST 'OffloadTest-clang-vk :: Feature/CBuffer/scalars-16bit.test' FAILED ********************
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 61
c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\split-file.exe C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp
# executed command: 'c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\split-file.exe' 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test' 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp'
# RUN: at line 62
c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\clang-dxc.exe -spirv -fspv-target-env=vulkan1.3 -fspv-extension=DXC --dxv-path=C:/Users/github/actions-runner/_work/offload-test-suite/offload-test-suite/DXC/build/bin -fvk-use-dx-layout -enable-16bit-types -T cs_6_5 -Fo C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp.o C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp/source.hlsl
# executed command: 'c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\clang-dxc.exe' -spirv -fspv-target-env=vulkan1.3 -fspv-extension=DXC --dxv-path=C:/Users/github/actions-runner/_work/offload-test-suite/offload-test-suite/DXC/build/bin -fvk-use-dx-layout -enable-16bit-types -T cs_6_5 -Fo 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp.o' 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp/source.hlsl'
# RUN: at line 63
c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\offloader.exe -debug-layer C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp/pipeline.yaml C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp.o | c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\filecheck.exe C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test
# executed command: 'c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\offloader.exe' -debug-layer 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp/pipeline.yaml' 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\tools\OffloadTest\test\clang-vk\Feature\CBuffer\Output\scalars-16bit.test.tmp.o'
# executed command: 'c:\users\github\actions-runner\_work\offload-test-suite\offload-test-suite\llvm-project\build\bin\filecheck.exe' 'C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test'
# .---command stderr------------
# | C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test:70:10: error: CHECK: expected string not found in input
# | # CHECK: Data: [ 0x3C00, 0x1, 0xFFFF, 0x0 ]
# | ^
# | <stdin>:39:15: note: scanning from here
# | Format: Hex16
# | ^
# | <stdin>:41:2: note: possible intended match here
# | Data: [ 0x0, 0x0, 0x0, 0x0 ]
# | ^
# |
# | Input file: <stdin>
# | Check file: C:\Users\github\actions-runner\_work\offload-test-suite\offload-test-suite\OffloadTest\test\Feature\CBuffer\scalars-16bit.test
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | .
# | .
# | .
# | 34: OutputProps:
# | 35: Height: 0
# | 36: Width: 0
# | 37: Depth: 0
# | 38: - Name: Out
# | 39: Format: Hex16
# | check:70'0 X error: no match found
# | 40: Stride: 8
# | check:70'0 ~~~~~~~~~~~
# | 41: Data: [ 0x0, 0x0, 0x0, 0x0 ]
# | check:70'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:70'1 ? possible intended match
# | 42: OutputProps:
# | check:70'0 ~~~~~~~~~~~~~~
# | 43: Height: 0
# | check:70'0 ~~~~~~~~~~~
# | 44: Width: 0
# | check:70'0 ~~~~~~~~~~
# | 45: Depth: 0
# | check:70'0 ~~~~~~~~~~
# | 46: DescriptorSets:
# | check:70'0 ~~~~~~~~~~~~~~~~
# | .
# | .
# | .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1