| Issue |
90788
|
| Summary |
[HLSL] Scalar to vector implicit conversion
|
| Labels |
HLSL
|
| Assignees |
|
| Reporter |
llvm-beanz
|
While HLSL doesn't allow vector extension as an implicit conversion it does allow scalar to vector conversion as an implicit conversion.
```hlsl
void fn(int i) {}
void fn(vector<int64_t, 2> v) {}
export void call(int i, int64_t l, vector<int,2> vi, vector<int64_t, 2> vl) {
fn(i); // calls fn(int)
fn(l); // calls fn(vector<int64_t,2>)
fn(vi); // calls fn(vector<int64_t,2>)
fn(vl); // calls fn(vector<int64_t,2>)
}
```
[Compiler Explorer](https://godbolt.org/z/jqK1T8Kxr)
We need to update the language specification and implement the scalar->vector implicit conversion.
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