| Issue |
143003
|
| Summary |
[HLSL][SPIRV] 64bit firstbitlow returns incorrect values
|
| Labels |
bug,
HLSL,
clang:HLSL:SPIRV
|
| Assignees |
|
| Reporter |
V-FEXrt
|
Discovered while running the offload-test-suite. The values returned imply an incorrect lowering for the 64bit overload. This only occurs for the Vulkan target which makes sense as it has the most complex lowering.
```
# | Name: ExpectedOut
# | Format: UInt32
# | Stride: 16
# | Data: [ 4294967295, 3, 63, 0, 4294967295, 3, 63, 0, 0, 3, 3,
# | 4294967295 ]
# | OutputProps:
# | Height: 0
# | Width: 0
# | Depth: 0
# | ...
# | Got:
# | ---
# | Name: Out
# | Format: UInt32
# | Stride: 16
# | Data: [ 31, 35, 31, 0, 31, 35, 31, 0, 0, 32, 31, 31 ]
# | OutputProps:
# | Height: 0
# | Width: 0
# | Depth: 0
```
See https://github.com/llvm/offload-test-suite/pull/209 for more context
![]()
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
