Weining Lu
3dd319ecf3
[LoongArch] Optimize conditional selection of integer ...
This patch optimizes code generation by leveraging the zeroing behavior of the `maskeqz`/`masknez` instructions.
```
int sel(int a, int b)
{
return (a < b) ? a : 0;
}
```
```
slt $a1,$a0,$a1
masknez $a2,$r0,$a1
maskeqz $a0,$a0,$a1
or $a0,$a0,$a2
```
=>
```
slt $a1,$a0,$a1
maskeqz $a0,$a0,$a1
```
Reviewed By: SixWeining
Differential Revision: https://reviews.llvm.org/D153193
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3dd319ecf3