gcc/testsuite/gcc.target/mips/octeon-bbit-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-march=octeon" } */
   3 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
   4 /* { dg-final { scan-assembler "\tbbit1\t" } } */
   5 /* { dg-final { scan-assembler "\tbbit0\t" } } */
   6 /* { dg-final { scan-assembler-times "\tbbit.\t" 6 } } */
   7 /* { dg-final { scan-assembler-not "andi\t" } } */
   8
   9 NOMIPS16 void foo (void);
  10
  11 NOMIPS16 void
  12 f1 (long long i)
  13 {
  14   if (i & 0x80)
  15     foo ();
  16 }
  17
  18 NOMIPS16 void
  19 f2 (int i)
  20 {
  21   if (!(i & 0x80))
  22     foo ();
  23 }
  24
  25 NOMIPS16 void
  26 f3 (int i)
  27 {
  28   if (i % 2)
  29     foo ();
  30 }
  31
  32 NOMIPS16 void
  33 f4 (int i)
  34 {
  35   if (i & 1)
  36     foo ();
  37 }
  38
  39 NOMIPS16 void
  40 f5 (long long i)
  41 {
  42   if ((i >> 3) & 1)
  43     foo ();
  44 }
  45
  46 unsigned long long r;
  47
  48 NOMIPS16 static inline __attribute__((always_inline)) int
  49 test_bit(unsigned long long nr, const unsigned long long *addr)
  50 {
  51   return 1UL & (addr[nr >> 6] >> (nr & 63ULL));
  52 }
  53
  54 NOMIPS16 void
  55 f6 ()
  56 {
  57   if (!test_bit(0, &r))
  58     foo ();
  59 }