gcc/testsuite/gcc.target/aarch64/sbc.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 --save-temps" } */
   3
   4 extern void abort (void);
   5
   6 typedef unsigned int u32int;
   7 typedef unsigned long long u64int;
   8
   9 u32int
  10 test_si (u32int w1, u32int w2, u32int w3, u32int w4)
  11 {
  12   u32int w0;
  13   /* { dg-final { scan-assembler "sbc\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+\n" } } */
  14   w0 = w1 - w2 - (w3 < w4);
  15   return w0;
  16 }
  17
  18 u64int
  19 test_di (u64int x1, u64int x2, u64int x3, u64int x4)
  20 {
  21   u64int x0;
  22   /* { dg-final { scan-assembler "sbc\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+\n" } } */
  23   x0 = x1 - x2 - (x3 < x4);
  24   return x0;
  25 }
  26
  27 int
  28 main ()
  29 {
  30   u32int x;
  31   u64int y;
  32   x = test_si (7, 8, 12, 15);
  33   if (x != -2)
  34     abort();
  35   y = test_di (0x987654321ll, 0x123456789ll, 0x345345345ll, 0x123123123ll);
  36   if (y != 0x8641fdb98ll)
  37     abort();
  38   return 0;
  39 }
  40