Codegen regression of indexing of slice on nightly

[CrazyboyQCD]

Not sure if it is related with LLVM.
https://godbolt.org/z/vhKoWYxM5

#[inline(never)]
pub fn f_index(data: &mut [u32]) {
    for i in 0..data.len() {
        data[i] += 1;
    }
}

Regression part in LBB0_4:

stable:

        mov     rax, rsi
        and     rax, -8
        xor     ecx, ecx
        pcmpeqd xmm0, xmm0

nightly:

        movabs  rax, 2305843009213693944
        and     rax, rsi
        lea     rcx, [4*rsi]
        and     rcx, -32
        xor     edx, edx
        pcmpeqd xmm0, xmm0

[nikic]

Could you please clarify what regression you're referring to? Is this about the replacement of the and -8 with a larger immediate or something else?

[CrazyboyQCD]

Could you please clarify what regression you're referring to? Is this about the replacement of the and -8 with a larger immediate or something else?

Sure, regression part is added.

[SpriteOvO]

Bisection points to #148350.