1 /* Copyright (C) 2004 Free Software Foundation.
2
3 Verify that integral FP expressions are optimized.
4
5 Written by Kaveh Ghazi, 2004-03-16. */
6
7 /* { dg-do link } */
8 /* We need -ffinite-math-only so that we can fold "foo != foo", where
9 foo is a floating point expression. We need -fno-math-errno so
10 that various math functions are marked const/pure and can be
11 folded. */
12 /* { dg-options "-ffinite-math-only -fno-math-errno" } */
13 /* { dg-require-effective-target c99_runtime } */
14 /* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
15
16 extern int link_failure (int);
17
18 /* Test that the various FP truncation builtins detect integral
19 arguments. */
20 #define CHECK_FN(MATHFN) \
21 if (__builtin_##MATHFN(i1) != i1) link_failure (__LINE__); \
22 if (__builtin_##MATHFN##f(i1) != i1) link_failure (__LINE__); \
23 if (__builtin_##MATHFN##l(i1) != i1) link_failure (__LINE__);
24
25 #define CHECK_FN_RET(MATHFN, RET) \
26 if (__builtin_##MATHFN(i1) != (RET)(double)i1) link_failure (__LINE__); \
27 if (__builtin_##MATHFN##f(i1) != (RET)(float)i1) link_failure (__LINE__); \
28 if (__builtin_##MATHFN##l(i1) != (RET)(long double)i1) link_failure (__LINE__);
29
30 /* Check that various other integral expressions are detected. */
31 #define CHECK_EXPR(EXPR,NAME) \
32 if (__builtin_ceill(EXPR) != (EXPR)) link_failure (__LINE__); \
33 if (__builtin_lroundl(EXPR) != (long)(long double)(EXPR)) link_failure (__LINE__);
34
test(int i1,int i2)35 void __attribute__ ((__noinline__)) test (int i1, int i2)
36 {
37 CHECK_FN(ceil);
38 CHECK_FN(floor);
39 CHECK_FN(nearbyint);
40 CHECK_FN(rint);
41 CHECK_FN(round);
42 CHECK_FN(trunc);
43 CHECK_FN_RET(lround, long);
44 CHECK_FN_RET(llround, long long);
45 CHECK_FN_RET(lrint, long);
46 CHECK_FN_RET(llrint, long long);
47 CHECK_FN_RET(lceil, long);
48 CHECK_FN_RET(llceil, long long);
49 CHECK_FN_RET(lfloor, long);
50 CHECK_FN_RET(llfloor, long long);
51
52 CHECK_EXPR (5.0, REAL_CST);
53 CHECK_EXPR (5.0F, REAL_CSTf);
54 CHECK_EXPR (5.0L, REAL_CSTl);
55 CHECK_EXPR ((double)i1, FLOAT_EXPR);
56 CHECK_EXPR ((float)i1, FLOAT_EXPRf);
57 CHECK_EXPR ((long double)i1, FLOAT_EXPRl);
58 CHECK_EXPR (__builtin_fabs(i1), ABS_EXPR);
59 CHECK_EXPR (__builtin_fabsf(i1), ABS_EXPRf);
60 CHECK_EXPR (__builtin_fabsl(i1), ABS_EXPRl);
61 CHECK_EXPR (((void)i1,(double)i2), COMPOUND_EXPR);
62 CHECK_EXPR ((double)i1+i2, PLUS_EXPR);
63 CHECK_EXPR ((double)i1-i2, MINUS_EXPR);
64 CHECK_EXPR ((double)i1*i2, MULT_EXPR);
65 }
66
main(void)67 int main (void)
68 {
69 test (1, 2);
70 return 0;
71 }
72