| Issue |
165948
|
| Summary |
[AArch64] Suboptimal `memmove` 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/TafacnzY3
LLVM assembly:
```asm
move7:
ldrb w8, [x1, #6]
ldrh w9, [x1, #4]
ldr w10, [x1]
strb w8, [x0, #6]
strh w9, [x0, #4]
str w10, [x0]
ret
```
GCC assembly:
```asm
move7:
ldr w2, [x1]
ldr w1, [x1, 3]
str w2, [x0]
str w1, [x0, 3]
ret
```
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