diff options
Diffstat (limited to 'test/regression/builtins-x86.c')
-rw-r--r-- | test/regression/builtins-x86.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/test/regression/builtins-x86.c b/test/regression/builtins-x86.c new file mode 100644 index 00000000..1ba213e7 --- /dev/null +++ b/test/regression/builtins-x86.c @@ -0,0 +1,61 @@ +/* Fun with builtin functions */ + +#include <stdio.h> + +int main(int argc, char ** argv) +{ + unsigned int x = 0x12345678; + unsigned int y = 0xDEADBEEF; + unsigned long long xx = 0x1234567812345678ULL; + unsigned long long yy = 0x1234567800000000ULL; + unsigned long long zz = 0x123456789ABCDEF0ULL; + unsigned z; + double a = 3.14159; + double b = 2.718; + double c = 1.414; + unsigned short s = 0x1234; + + printf("bswap(%x) = %x\n", x, __builtin_bswap(x)); + printf("bswap16(%x) = %x\n", s, __builtin_bswap16(s)); + printf("bswap64(%llx) = %llx\n", zz, __builtin_bswap64(zz)); + printf("clz(%x) = %d\n", x, __builtin_clz(x)); + printf("clzll(%llx) = %d\n", (unsigned long long) x, __builtin_clzll(x)); + printf("clzll(%llx) = %d\n", xx, __builtin_clzll(xx)); + z = __builtin_bswap(x); + printf("clzll(%lx) = %d\n", z, __builtin_clzll(z)); + printf("ctz(%x) = %d\n", s, __builtin_ctz(s)); + printf("ctzll(%llx) = %d\n", xx, __builtin_ctzll(xx)); + printf("ctzll(%llx) = %d\n", yy, __builtin_ctzll(yy)); + printf("ctzll(%lx) = %d\n", z, __builtin_ctzll(z)); + + printf("fsqrt(%f) = %f\n", a, __builtin_fsqrt(a)); + printf("fmin(%f, %f) = %f\n", a, b, __builtin_fmin(a, b)); + printf("fmax(%f, %f) = %f\n", a, b, __builtin_fmax(a, b)); + +#ifdef FMA3 + printf("fmadd(%f, %f, %f) = %f\n", a, b, c, __builtin_fmadd(a, b, c)); + printf("fmsub(%f, %f, %f) = %f\n", a, b, c, __builtin_fmsub(a, b, c)); + printf("fnmadd(%f, %f, %f) = %f\n", a, b, c, __builtin_fnmadd(a, b, c)); + printf("fnmsub(%f, %f, %f) = %f\n", a, b, c, __builtin_fnmsub(a, b, c)); +#endif + + printf ("read_16_rev = %x\n", __builtin_read16_reversed(&s)); + printf ("read_32_rev = %x\n", __builtin_read32_reversed(&y)); + __builtin_write16_reversed(&s, 0x789A); + printf ("after write_16_rev: %x\n", s); + __builtin_write32_reversed(&y, 0x12345678); + printf ("after write_32_rev: %x\n", y); + y = 0; + __builtin_write32_reversed(&y, 0x12345678); + printf ("CSE write_32_rev: %s\n", y == 0x78563412 ? "ok" : "ERROR"); + /* Make sure that ignoring the result of a builtin + doesn't cause an internal error */ + (void) __builtin_bswap(x); + (void) __builtin_fsqrt(a); + return 0; +} + + + + + |