| Issue |
107526
|
| Summary |
`lsr v, v, #56`+`ldr d0, [x9, x8, lsl #3]` optimized to `lsr v, v, #53`+`and v, v, #0x7f8`+`ldr d0, [x9, x8]`
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Validark
|
[Godbolt link](https://zig.godbolt.org/z/sbefWdEcf)
```zig
export fn foo(bitstring: u64, dest: [*]u8, src: [*][8]u8) void {
dest[0..8].* = src[bitstring >> 56];
}
```
Compiled for the Apple M3:
```asm
foo:
lsr x8, x0, #53
and x8, x8, #0x7f8
ldr x8, [x2, x8]
str x8, [x1]
ret
```
I think it should be:
```asm
foo:
lsr x8, x0, #56
ldr x8, [x2, x8, lsl #3]
str x8, [x1]
ret
```
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