gcc/testsuite/gcc.dg/pr61053.c

   1 /* PR c/61053 */
   2 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
   3 /* { dg-options "-std=c11 -pedantic-errors" } */
   4
   5 _Alignas (char) char cc;
   6 _Alignas (short int) char cs;
   7 _Alignas (int) char ci;
   8 _Alignas (long int) char cl;
   9 _Alignas (long long int) char cll;
  10 _Alignas (float) char cf;
  11 _Alignas (double) char cd;
  12 _Alignas (long double) char cld;
  13
  14 _Alignas (char) short int sc; /* { dg-error "cannot reduce alignment" } */
  15 _Alignas (short int) short int ss;
  16 _Alignas (int) short int si;
  17 _Alignas (long int) short int sl;
  18 _Alignas (long long int) short int sll;
  19 _Alignas (float) short int sf;
  20 _Alignas (double) short int sd;
  21 _Alignas (long double) short int sld;
  22
  23 _Alignas (char) int ic; /* { dg-error "cannot reduce alignment" } */
  24 _Alignas (short int) int is; /* { dg-error "cannot reduce alignment" } */
  25 _Alignas (int) int ii;
  26 _Alignas (long int) int il;
  27 _Alignas (long long int) int ill;
  28 _Alignas (float) int if_;
  29 _Alignas (double) int id;
  30 _Alignas (long double) int ild;
  31
  32 _Alignas (char) long int lic; /* { dg-error "cannot reduce alignment" } */
  33 _Alignas (short int) long int lis; /* { dg-error "cannot reduce alignment" } */
  34 _Alignas (int) long int lii; /* { dg-error "cannot reduce alignment" "" { target { ! { ilp32 } } } } */
  35 _Alignas (long int) long int lil;
  36 _Alignas (long long int) long int lill;
  37 _Alignas (float) long int lif; /* { dg-error "cannot reduce alignment" "" { target { ! { ilp32 } } } } */
  38 _Alignas (double) long int lid;
  39 _Alignas (long double) long int lild;
  40
  41 _Alignas (char) long long int llic; /* { dg-error "cannot reduce alignment" } */
  42 _Alignas (short int) long long int llis; /* { dg-error "cannot reduce alignment" } */
  43 _Alignas (int) long long int llii; /* { dg-error "cannot reduce alignment" "" { target { ! { ia32 } } } } */
  44 _Alignas (long int) long long int llil; /* { dg-error "cannot reduce alignment" "" { target { x32 } } } */
  45 _Alignas (long long int) long long int llill;
  46 _Alignas (float) long long int llif; /* { dg-error "cannot reduce alignment" "" { target { ! { ia32 } } } } */
  47 _Alignas (double) long long int llid;
  48 _Alignas (long double) long long int llild;
  49
  50 _Alignas (char) float fc; /* { dg-error "cannot reduce alignment" } */
  51 _Alignas (short int) float fs; /* { dg-error "cannot reduce alignment" } */
  52 _Alignas (int) float fi;
  53 _Alignas (long int) float fl;
  54 _Alignas (long long int) float fll;
  55 _Alignas (float) float ff;
  56 _Alignas (double) float fd;
  57 _Alignas (long double) float fld;
  58
  59 _Alignas (char) double dc; /* { dg-error "cannot reduce alignment" } */
  60 _Alignas (short int) double ds; /* { dg-error "cannot reduce alignment" } */
  61 _Alignas (int) double di; /* { dg-error "cannot reduce alignment" "" { target { ! { ia32 } } } } */
  62 _Alignas (long int) double dl; /* { dg-error "cannot reduce alignment" "" { target { x32 } } } */
  63 _Alignas (long long int) double dll;
  64 _Alignas (float) double df; /* { dg-error "cannot reduce alignment" "" { target { ! { ia32 } } } } */
  65 _Alignas (double) double dd;
  66 _Alignas (long double) double dld;
  67
  68 _Alignas (char) long double ldc; /* { dg-error "cannot reduce alignment" } */
  69 _Alignas (short int) long double lds; /* { dg-error "cannot reduce alignment" } */
  70
  71 #if __SIZEOF_LONG_DOUBLE__ == 12
  72 /* Get around PR testsuite/69573 - FAIL: gcc.dg/pr61053.c (test for excess
  73    errors) on targets such as x86_64-apple-darwin15.3.0 where long double
  74    is 16 bytes wide even in LP32.  */
  75 #  define X(T)   short
  76 #else
  77 #  define X(T)   T
  78 #endif
  79
  80 _Alignas (X (int)) long double ldi; /* { dg-error "cannot reduce alignment" } */
  81 _Alignas (X (long int)) long double ldl; /* { dg-error "cannot reduce alignment" } */
  82 _Alignas (X (long long int)) long double ldll; /* { dg-error "cannot reduce alignment" } */
  83 _Alignas (X (float)) long double ldf; /* { dg-error "cannot reduce alignment" } */
  84 _Alignas (X (double)) long double ldd; /* { dg-error "cannot reduce alignment" } */
  85 _Alignas (long double) long double ldld;