gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr43791.c


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int owner();
int clear();

static void fixup() {
   clear();
}

inline __attribute__ ((always_inline))
void slowtrylock(void) {
     if (owner())
         fixup();
}

void fasttrylock(void (*slowfn)()) {
     slowfn();
}

void trylock(void) {
     fasttrylock(slowtrylock);
}