gcc/testsuite/gcc.dg/darwin-sections.c

   1 /* { dg-do compile {target *-*-darwin* } } */
   2 /* { dg-options "-std=c99 -w -fcommon" } */
   3
   4 /* This has been designed to give the same section usage for
   5    -m32 and -m64 - so don't put any ints or longs in it ... */
   6
   7 /* A zero-sized object.  */
   8 typedef struct _empty {} e_s;
   9
  10 /* These should go in .comm */
  11 char ub;
  12 e_s ea;
  13 /* { dg-final { scan-assembler ".comm\[\t \]_ub,1" } } */
  14 /* { dg-final { scan-assembler ".comm\[\t \]_ea,1" } } */
  15
  16 /* These should go into __DATA,__common */
  17 char a = 0;
  18 short b = 0;
  19 long long d = 0;
  20 float e = 0;
  21 double f = 0;
  22 long double g = 0.L;
  23 long long al_256 __attribute__((aligned (256))) = 0;
  24 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_a,1,0} } } */
  25 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_b,2,1} } } */
  26 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_d,8,3} } } */
  27 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_e,4,2} } } */
  28 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_f,8,3} } } */
  29 /* long double can be 64 or 128 bits depending on the Darwin subtarget.  */
  30 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_g,(16,4|8,3)} } } */
  31 /* { dg-final { scan-assembler {.zerofill __DATA,__common,_al_256,8,8} } } */
  32
  33 /* These should go into __DATA,__bss */
  34 static e_s sea;
  35 static char sa ;
  36 static short sb ;
  37 static long long sd;
  38 static float se ;
  39 static double sf ;
  40 static long double sg;
  41 static long long sal_256 __attribute__((aligned (2048)));
  42 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sea,1,0} } } */
  43 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sa,1,0} } } */
  44 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sb,2,1} } } */
  45 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sd,8,3} } } */
  46 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_se,4,2} } } */
  47 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sf,8,3} } } */
  48 /* long double can be 64 or 128 bits depending on the Darwin subtarget.  */
  49 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sg,(16,4|8,3)} } } */
  50 /* { dg-final { scan-assembler {.zerofill __DATA,__bss,_sal_256,8,11} } } */
  51
  52 long long foo (int x)
  53 {
  54   e_s *s;
  55   a += x + sa;
  56   b += a + sb;
  57   d += b + sd;
  58   e += d + se;
  59   f += e + sf;
  60   g += f + sg;
  61
  62   s = &ea;
  63   s = &sea;
  64
  65   b += al_256;
  66   b += sal_256;
  67
  68   return (long long) sd + b;
  69 }