| Issue |
165949
|
| Summary |
[AArch64] Suboptimal `memset` for non-power of two sizes
|
| Labels |
backend:AArch64,
missed-optimization
|
| Assignees |
|
| Reporter |
Kmeakin
|
Split off from https://github.com/llvm/llvm-project/issues/165625
https://godbolt.org/z/n3qq3EYrT
LLVM assembly:
```asm
set4:
mov w8, #16843009
and w9, w1, #0xff
mul w8, w9, w8
str w8, [x0]
ret
```
GCC assembly:
```asm
set4:
dup v31.16b, w1
str s31, [x0]
ret
```
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