Keenuts wrote:
Looks like this changes caused any struct with 3-elements vectors to now
contain padding, even if the struct has the `PackingAttr` attribute.
Example:
```hlsl
struct S1 {
uint a : A;
uint3 b : B;
uint c : C;
} __attribute__((packed));
[numthread(1, 1, 1)]
void main(S1 s) {}
```
-> `%S1 = type { i32, <3 x i32>, [4 x i8], i32 }`
https://github.com/llvm/llvm-project/pull/160955
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