| /* Check shift via address-style displacement. There should not be any |
| and operations that the instructions perform implicitly anyway.*/ |
| |
| /* { dg-options "-O1 -m64" } */ |
| |
| /* { dg-final { scan-assembler-not "risbg\t%r.+,.*63" } } */ |
| /* { dg-final { scan-assembler "rllg\t%r.+,3.%r.+" } } */ |
| /* { dg-final { scan-assembler "sllg\t%r.+,2.%r.+" } } */ |
| |
| unsigned long rotlmodp (unsigned long in, unsigned long sh) |
| { |
| sh = (sh + 3) % 64; |
| return (in << sh) | (in >> (64 - sh)); |
| } |
| |
| unsigned long shiftmodp (unsigned long in, unsigned long sh) |
| { |
| sh = (sh + 2) % 64; |
| return (in << sh); |
| } |
| |
| /* We expect a displacement of 1 here since combine simplifies |
| modulo 255 when substituting into a QImode subreg. */ |
| /* { dg-final { scan-assembler "sllg\t%r.+,1.%r.+" } } */ |
| unsigned long shiftp (unsigned long in, unsigned long sh) |
| { |
| sh = sh + 4097; |
| return (in << sh); |
| } |
