diff options
Diffstat (limited to 'tests/programs/bitops.zc')
| -rw-r--r-- | tests/programs/bitops.zc | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/tests/programs/bitops.zc b/tests/programs/bitops.zc index 97817b9..3b6b113 100644 --- a/tests/programs/bitops.zc +++ b/tests/programs/bitops.zc @@ -1,26 +1,29 @@ +namespace; +include rt; + // bit tricks and float32 conversion as micro-ops -fn show(v) { put_n(v); put_c(' '); } +fn show(v) { rt.put_n(v); rt.put_c(' '); } fn once() { - show(clz(1)); show(clz(0)); show(ctz(8)); show(ctz(0)); - show(popcnt(255)); show(popcnt(-1)); show(popcnt(0)); - show(bswap(1) == 72057594037927936); - show(rotl(1, 65)); show(rotr(1, 1) < 0); show(rotl(rotr(12345, 7), 7)); - show(mulhi(-1, 5)); show(umulhi(-1, 5)); - show(f2s(0x3ff8000000000000)); show(s2f(0x3fc00000) == 0x3ff8000000000000); - show(f2s(0x3ff0000000000000)); show(f2s(0x3810000000000000)); - put_c(10); + show(rt.clz(1)); show(rt.clz(0)); show(rt.ctz(8)); show(rt.ctz(0)); + show(rt.popcnt(255)); show(rt.popcnt(-1)); show(rt.popcnt(0)); + show(rt.bswap(1) == 72057594037927936); + show(rt.rotl(1, 65)); show(rt.rotr(1, 1) < 0); show(rt.rotl(rt.rotr(12345, 7), 7)); + show(rt.mulhi(-1, 5)); show(rt.umulhi(-1, 5)); + show(rt.f2s(0x3ff8000000000000)); show(rt.s2f(0x3fc00000) == 0x3ff8000000000000); + show(rt.f2s(0x3ff0000000000000)); show(rt.f2s(0x3810000000000000)); + rt.put_c(10); } // the same in a loop, so o3 lifts and fuses them o3 int sums(int n) { int a = 0; for (int i = 0; i < n; i++) { - a += popcnt(i) + ctz(i + 1) + clz(i + 1); - a ^= rotl(a, 3) + bswap(i) + f2s(s2f(i)); + a += rt.popcnt(i) + rt.ctz(i + 1) + rt.clz(i + 1); + a ^= rt.rotl(a, 3) + rt.bswap(i) + rt.f2s(rt.s2f(i)); } return a; } int main() { once(); - put_n(sums(1000)); put_c(10); + rt.put_n(sums(1000)); rt.put_c(10); return 0; } |