llvm-project/clang/test/CodeGen/opaque-pointer.c

// RUN: %clang_cc1 %s -emit-llvm -o -
struct test;

typedef void (*my_func) (struct test *);
my_func handler;

struct test {
  char a;
};

char f(struct test *t) {
  return t->a;
}
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446 2009-12-16 04:14:24 +08:00			`// RUN: %clang_cc1 %s -emit-llvm -o -`
A pointer to an opaque type is an "opaque type definition". llvm-svn: 46575 2008-01-31 05:21:08 +08:00			`struct test;`

			`typedef void (my_func) (struct test );`
			`my_func handler;`

			`struct test {`
			`char a;`
			`};`

			`char f(struct test *t) {`
			`return t->a;`
			`}`