[Bug target/114741] New: [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

[nsz at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741

            Bug ID: 114741
           Summary: [14 regression] aarch64 sve: unnecessary fmov for
                    scalar int bit operations
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nsz at gcc dot gnu.org
  Target Milestone: ---

void foo(unsigned i, unsigned *p)
{
    *p = i & 1;
}

with gcc -march=armv8-a+sve -O2 compiles to

foo:
        fmov    s31, w0
        and     z31.s, z31.s, #1
        str     s31, [x1]
        ret

instead of

foo:
        and     w0, w0, 1
        str     w0, [x1]
        ret

it is wrong with -mcpu=generic but good e.g. with -mcpu=neoverse-v1