gcc/testsuite/gcc.target/powerpc/pr60203.c

   1 /* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
   2 /* { dg-skip-if "" { powerpc*-*-darwin* } } */
   3 /* { dg-options "-mdejagnu-cpu=power8 -mvsx -O3" } */
   4 /* { dg-require-effective-target longdouble128 } */
   5 /* { dg-require-effective-target powerpc_vsx } */
   6
   7 #if defined(__LONG_DOUBLE_IEEE128__)
   8 /* If long double is IEEE 128-bit, we need to use the __ibm128 type instead of
   9    long double.  We can't use __ibm128 on systems that don't support IEEE
  10    128-bit floating point, because the type is not enabled on those
  11    systems.  */
  12 #define LDOUBLE __ibm128
  13
  14 #elif defined(__LONG_DOUBLE_IBM128__)
  15 #define LDOUBLE long double
  16
  17 #else
  18 #error "long double must be either IBM 128-bit or IEEE 128-bit"
  19 #endif
  20
  21 union u_ld { LDOUBLE ld; double d[2]; };
  22
  23 LDOUBLE
  24 pack (double a, double aa)
  25 {
  26   union u_ld u;
  27   u.d[0] = a;
  28   u.d[1] = aa;
  29   return u.ld;
  30 }
  31
  32 double
  33 unpack_0 (LDOUBLE x)
  34 {
  35   union u_ld u;
  36   u.ld = x;
  37   return u.d[0];
  38 }
  39
  40 double
  41 unpack_1 (LDOUBLE x)
  42 {
  43   union u_ld u;
  44   u.ld = x;
  45   return u.d[1];
  46 }
  47
  48 /* { dg-final { scan-assembler-not "stfd"   } } */
  49 /* { dg-final { scan-assembler-not "lfd"    } } */
  50 /* { dg-final { scan-assembler-not "lxsdx"  } } */
  51 /* { dg-final { scan-assembler-not "stxsdx" } } */
  52 /* { dg-final { scan-assembler-not "mfvsrd" } } */
  53 /* { dg-final { scan-assembler-not "mtvsrd" } } */
  54
  55