github_mirrors/vectorscan
3
0
Fork 1
mirror of https://github.com/VectorCamp/vectorscan.git synced 2025-06-28 16:41:01 +03:00
Code Issues Packages Projects Releases Wiki Activity

expand128 bugs fixed

Browse Source
This commit is contained in:
Apostolos Tapsas 2021-10-22 07:05:55 +00:00
parent 7184ce9870
commit 5abda15c26
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/util/arch/ppc64el/bitutils.h
View File

@ -135,17 +135,16 @@ u64a expand64_impl(u64a x, u64a m) {
} }
static really_inline static really_inline
m128 expand128_impl(m128 xvec, m128 mvec) { m128 expand128_impl(m128 x, m128 m) {
m128 one = set1_2x64(1); m128 one = set1_2x64(1);
m128 bb = one; m128 bb = one;
m128 res = zeroes128(); m128 res = zeroes128();
while (isnonzero128(m)) { while (isnonzero128(m)) {
m128 xm = and128(x, bb);
m128 mm = sub_2x64(zeroes128(), m); m128 mm = sub_2x64(zeroes128(), m);
m128 xm = and128(x, m);
xm = and128(xm, mm);
m128 mask = not128(eq64_m128(xm, zeroes128())); m128 mask = not128(eq64_m128(xm, zeroes128()));
res = or128(res, and128(bb, mask)); mask = and128(mask, and128(m,mm));
res = or128(res, mask);
m = and128(m, sub_2x64(m, one)); m = and128(m, sub_2x64(m, one));
bb = lshift64_m128(bb, 1); bb = lshift64_m128(bb, 1);
} }