gcc/testsuite/gcc.dg/weak-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fno-common" } */
   3
   4 /* COFF does not support weak, and dg doesn't support UNSUPPORTED.  */
   5 /* { dg-do compile { xfail *-*-coff i?86-pc-cygwin h8300-*-hms } } */
   6
   7 /* { dg-final { global target_triplet } } */
   8 /* { dg-final { if [string match h8300-*-hms $target_triplet ] {return} } } */
   9 /* { dg-final { if [string match i?86-pc-cygwin $target_triplet ] {return} } } */
  10 /* { dg-final { if [string match *-*-coff $target_triplet ] {return} } } */
  11 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?a" } } */
  12 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?b" } } */
  13 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?c" } } */
  14 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?d" } } */
  15 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?e" } } */
  16 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?g" } } */
  17 /* { dg-final { scan-assembler-not "weak\[^ \t\]*\[ \t\]_?i" } } */
  18 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?j" } } */
  19
  20 #pragma weak a
  21 int a;
  22
  23 int b;
  24 #pragma weak b
  25
  26 #pragma weak c
  27 extern int c;
  28 int c;
  29
  30 extern int d;
  31 #pragma weak d
  32 int d;
  33
  34 #pragma weak e
  35 void e(void) { }
  36
  37 #if 0
  38 /* This permutation is illegal.  */
  39 void f(void) { }
  40 #pragma weak f
  41 #endif
  42
  43 #pragma weak g
  44 int g = 1;
  45
  46 #if 0
  47 /* This permutation is illegal.  */
  48 int h = 1;
  49 #pragma weak h
  50 #endif
  51
  52 #pragma weak i
  53 extern int i;
  54
  55 #pragma weak j
  56 extern int j;
  57 int use_j() { return j; }