clang/test/Frontend/backend-attribute-error-warning-optimize.c

   1 // RUN: %clang_cc1 -O2 -verify -emit-codegen-only %s
   2
   3 __attribute__((error("oh no foo"))) void foo(void);
   4
   5 __attribute__((error("oh no bar"))) void bar(void);
   6
   7 int x(void) {
   8   return 8 % 2 == 1;
   9 }
  10 void baz(void) {
  11   foo(); // expected-error {{call to 'foo' declared with 'error' attribute: oh no foo}}
  12   if (x())
  13     bar();
  14 }
  15
  16 // FIXME: indirect call detection not yet supported.
  17 void (*quux)(void);
  18
  19 void indirect(void) {
  20   quux = foo;
  21   quux();
  22 }