| Issue |
81047
|
| Summary |
Overload resolution should promote 16-bit types
|
| Labels |
HLSL
|
| Assignees |
llvm-beanz
|
| Reporter |
llvm-beanz
|
In working on #71098, I've discovered a few cases where C++ overload resolution rules don't quite match HLSL. HLSL allows "promotion" casting 16-bit types to larger types, and will select the first larger type that fits. In the following examples both should resolve successfully to the 32-bit overloads:
```c++
void Fn3(double2 D);
void Fn3(float2 F);
void Call3(half2 H) {
Fn3(H);
}
void Fn4(int64_t2 L);
void Fn4(int2 I);
void Call4(int16_t H) {
Fn4(H);
}
```
### Acceptance Criteria
A test case demonstrating the above overload resolution.
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