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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [pure-1.c] - Rev 377
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/* Origin: Kaveh Ghazi <ghazi@caip.rutgers.edu> 2002-05-27. */ /* Use a different function for each test so the link failures indicate which one is broken. */ extern void link_error0 (void); extern void link_error1 (void); extern void link_error2 (void); extern void link_error3 (void); extern void link_error4 (void); extern void link_error5 (void); extern void link_error6 (void); extern void link_error7 (void); extern int i; extern int func0 (int) __attribute__ ((__pure__)); extern int func1 (int) __attribute__ ((__const__)); /* GCC should automatically detect attributes for these functions. At -O3 They'll be inlined, but that's ok. */ static int func2 (int a) { return i + a; } /* pure */ static int func3 (int a) { return a * 3; } /* const */ static int func4 (int a) { return func0(a) + a; } /* pure */ static int func5 (int a) { return a + func1(a); } /* const */ static int func6 (int a) { return func2(a) + a; } /* pure */ static int func7 (int a) { return a + func3(a); } /* const */ int main () { int i[10], r; i[0] = 0; r = func0(0); if (i[0]) link_error0(); i[1] = 0; r = func1(0); if (i[1]) link_error1(); i[2] = 0; r = func2(0); if (i[2]) link_error2(); i[3] = 0; r = func3(0); if (i[3]) link_error3(); i[4] = 0; r = func4(0); if (i[4]) link_error4(); i[5] = 0; r = func5(0); if (i[5]) link_error5(); i[6] = 0; r = func6(0); if (i[6]) link_error6(); i[7] = 0; r = func7(0); if (i[7]) link_error7(); return r; } int func0 (int a) { return a - i; } /* pure */ int func1 (int a) { return a - a; } /* const */ int i = 2; #ifndef __OPTIMIZE__ /* Avoid link failures when not optimizing. */ void link_error0() {} void link_error1() {} void link_error2() {} void link_error3() {} void link_error4() {} void link_error5() {} void link_error6() {} void link_error7() {} #endif /* ! __OPTIMIZE__ */
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