[Bug target/22077] New: vec_all_eq does not produce good result

[pinskia at gcc dot gnu dot org]

int foo(vector float x, vector float y) {
        if (vec_all_eq(x,y)) return 3245; 
        else return 12;
}

Right now we produce:
        vcmpeqfp. v3,v2,v3
        li r3,3245
        mfcr r0
        rlwinm r0,r0,25,1
        cmpwi cr7,r0,0
        bnelr+ cr7
        li r3,12
        blr

But we should be able to produce something like the following:
        vcmpeqfp. v3,v2,v3
        cmpwi cr6,r0,0
        li r3,3245
        bnelr+ cr7
        li r3,12
        blr

This might be because of there is no such thing as BI modes on powerpc but I 
don't know for sure.

-- 
           Summary: vec_all_eq does not produce good result
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: minor
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22077