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

   1 /* { dg-do compile } */
   2 /* { dg-require-weak "" } */
   3 /* { dg-options "-fno-common" } */
   4
   5 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?a" } } */
   6 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?b" } } */
   7 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?c" } } */
   8 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?d" } } */
   9 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?e" } } */
  10 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?g" } } */
  11 /* { dg-final { scan-assembler-not "weak\[^ \t\]*\[ \t\]_?i" } } */
  12 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?j" } } */
  13
  14 #pragma weak a
  15 int a;
  16
  17 int b;
  18 #pragma weak b
  19
  20 #pragma weak c
  21 extern int c;
  22 int c;
  23
  24 extern int d;
  25 #pragma weak d
  26 int d;
  27
  28 #pragma weak e
  29 void e(void) { }
  30
  31 #if 0
  32 /* This permutation is illegal.  */
  33 void f(void) { }
  34 #pragma weak f
  35 #endif
  36
  37 #pragma weak g
  38 int g = 1;
  39
  40 #if 0
  41 /* This permutation is illegal.  */
  42 int h = 1;
  43 #pragma weak h
  44 #endif
  45
  46 #pragma weak i
  47 extern int i;
  48
  49 #pragma weak j
  50 extern int j;
  51 int use_j() { return j; }