| Issue |
124696
|
| Summary |
[HLSL] Invalid error reported for `int3` vector with packoffset
|
| Labels |
HLSL
|
| Assignees |
|
| Reporter |
hekota
|
The following code reports `error: packoffset cannot cross register boundary` in Clang while DXC compiles it fine.
```
cbuffer CB {
int2 c : packoffset(c1.y);
};
[numthreads(4,1,1)]
void main() {}
```
https://godbolt.org/z/4as9ebned
The problem is that in Clang the width and alignment of the `int3` type is 128 bits because it must be a power of 2. HLSL seems to align vectors based on the width of a single element.
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