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

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