gcc/testsuite/gcc.target/powerpc/float128-longdouble-stdio.c

   1 /* { dg-require-effective-target ppc_float128_hw } */
   2 /* { dg-options "-mdejagnu-cpu=power9 -O2 -mlong-double-128 -Wno-psabi -mabi=ieeelongdouble" } */
   3
   4 /* Test if switching long double to IEEE 128-bit maps the printf and scanf
   5    function names correctly.  We leave off the \M in matching the calls, so
   6    power10 will match using bl foo@notoc.  */
   7
   8 #include <stdlib.h>
   9
  10 volatile long double x = 1.0L;
  11 volatile long double y, z;
  12
  13 int
  14 main (void)
  15 {
  16   char buffer[100];
  17
  18   /* { dg-final { scan-assembler {\mbl __sprintfieee128} } }  */
  19   __builtin_sprintf (buffer, "%Lg", x);
  20
  21   /* { dg-final { scan-assembler {\mbl __printfieee128} } }  */
  22   __builtin_printf ("x is %Lg [%s]\n", x, buffer);
  23
  24   /* { dg-final { scan-assembler {\mbl __isoc99_sscanfieee128} } }  */
  25   __builtin_sscanf (buffer, "%Lg", &y);
  26
  27   __builtin_printf ("Type 1.0: ");
  28
  29   /* { dg-final { scan-assembler {\mbl __isoc99_scanfieee128} } }  */
  30   __builtin_scanf ("%Lg", &z);
  31
  32   if (x != y || x != z)
  33     abort ();
  34
  35   return 0;
  36 }