gcc/testsuite/gcc.target/aarch64/sve/fnmsb_1.c

   1 /* { dg-do assemble { target aarch64_asm_sve_ok } } */
   2 /* { dg-options " -O3 -msve-vector-bits=256 --save-temps" } */
   3
   4 typedef _Float16 vnx8hf __attribute__((vector_size(32)));
   5 typedef float vnx4sf __attribute__((vector_size(32)));
   6 typedef double vnx2df __attribute__((vector_size(32)));
   7
   8 #define DO_OP(TYPE)                                             \
   9 void vmad##TYPE (TYPE *x, TYPE y, TYPE z)                       \
  10 {                                                               \
  11   register TYPE dst  asm("z0");                                 \
  12   register TYPE src1 asm("z2");                                 \
  13   register TYPE src2 asm("z4");                                 \
  14   dst = *x;                                                     \
  15   src1 = y;                                                     \
  16   src2 = z;                                                     \
  17   asm volatile ("" :: "w" (dst), "w" (src1), "w" (src2));       \
  18   dst = (dst * src1) - src2;                                    \
  19   asm volatile ("" :: "w" (dst));                               \
  20   *x = dst;                                                     \
  21 }
  22
  23 DO_OP (vnx8hf)
  24 DO_OP (vnx4sf)
  25 DO_OP (vnx2df)
  26
  27 /* { dg-final { scan-assembler-times {\tfnmsb\tz0\.h, p[0-7]/m, z2\.h, z4\.h\n} 1 } } */
  28 /* { dg-final { scan-assembler-times {\tfnmsb\tz0\.s, p[0-7]/m, z2\.s, z4\.s\n} 1 } } */
  29 /* { dg-final { scan-assembler-times {\tfnmsb\tz0\.d, p[0-7]/m, z2\.d, z4\.d\n} 1 } } */