https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96482
--- Comment #10 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #9)
> Also this one shows the problem: -fdbg-cnt=ipa_cp_bits:10460-10461.
>
> If I see correctly the function body:
> lto-dump -dump-body=addr_to_index nir_lower_io.c.o
> Gimple Body of Function: addr_to_index
> addr_to_index (struct nir_builder * b, struct nir_ssa_def * addr,
> nir_address_format addr_format)
> {
> unsigned int c;
>
> <bb 2> [local count: 1073741824]:
> if (addr_format_3(D) == 3)
> goto <bb 3>; [20.24%]
> else
> goto <bb 4>; [79.76%]
>
> <bb 3> [local count: 217325344]:
> c = 0;
> _9 = nir_swizzle (b_5(D), addr_6(D), &c, 1);
> c ={v} {CLOBBER};
> goto <bb 7>; [100.00%]
>
> <bb 4> [local count: 856416481]:
> if (addr_format_3(D) == 4)
> goto <bb 5>; [100.00%]
> else
> goto <bb 6>; [0.00%]
>
> <bb 5> [local count: 856416481]:
> _8 = nir_channels (b_5(D), addr_6(D), 3);
> goto <bb 7>; [100.00%]
>
> <bb 6> [count: 0]:
> __builtin_unreachable ();
>
> <bb 7> [local count: 1073741824]:
> # _1 = PHI <_9(3), _8(5)>
> return _1;
>
> }
>
> addr_format (aka param 2) is either 3 or 4.
> 3 = 0x011
> 4 = 0x100
>
> so mask 6 = 0x110 is wrong as first bit is not constant.
> @Martin: Am I right?
^^^
@Martin ?
