use Inline C => Config => BUILD_NOISY => 1;
use Inline C => << 'EOC';

void inc_refcnt(SV * sv ) {
    SvREFCNT_inc(sv);
}
SV * get_refcnt(SV * sv) {
    return newSVuv(svREFCNT(sv));
}

EOC


my $globalVAR = 1;
my $refCNT;

if ( 1 ) {
  $refCNT = get_refcnt($globalVAR);
  $globalVAR++;
  inc_refcnt($globalVAR);
  $refCNT = get_refcnt($globalVAR);
} else {
  die;
}


##</code><code>##

/tmp/ccPL0xed.s: Assembler messages:
/tmp/ccPL0xed.s:10: Error: `8(%rdi)' is not a valid 32 bit base/index expression
/tmp/ccPL0xed.s:25: Error: suffix or operands invalid for `movslq'
/tmp/ccPL0xed.s:43: Error: `8(%rsp)' is not a valid 32 bit base/index expression