[Bug target/115713] New: rs6000: Miss warning for incompatible no-altivec and vsx in target attribute

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115713

            Bug ID: 115713
           Summary: rs6000: Miss warning for incompatible no-altivec and
                    vsx in target attribute
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: linkw at gcc dot gnu.org
  Target Milestone: ---

As Peter found in the PR115688, there isn't a warning for:

long __attribute__ ((target ("no-altivec,vsx")))
foo (void)
{
  return 0;
}

It's expected to see warning like:

warning: ‘-mvsx’ and ‘-mno-altivec’ are incompatible