And hashed 32-bit Progressive Index-of
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@ -422,6 +422,10 @@ B count_c2(B t, B w, B x) {
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we-= el_c8-el_i8; xe-= el_c8-el_i8;
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goto el8or16;
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} else {
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if (we==el_i32 && xe==el_i32 &&
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count_c2_hash32(rp, tyany_ptr(w), wia, tyany_ptr(x), xia, wnext)) {
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goto dec_nwx;
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}
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H_b2i* map = m_b2i(64);
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SGetU(x)
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SGetU(w)
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@ -438,6 +442,7 @@ B count_c2(B t, B w, B x) {
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}
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free_b2i(map);
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}
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dec_nwx:;
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TFREE(wnext); decG(w); decG(x);
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return reduceI32Width(r, wia);
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}
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@ -341,7 +341,8 @@ def to_prim = map{names, prims, .}
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oper &- ({v:T,m} => v & -promote{T,m}) infix left 35
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def rty{name} = if (to_prim{name}=='∊') i8 else i32
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fn hashtab{T, name}(rp:*rty{name}, ip:*T, m:usz, fp:*T, n:usz) = {
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def ity{name} = (to_prim{name}=='⊒')**(*u32)
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fn hashtab{T, name}(rp:*rty{name}, ip:*T, m:usz, fp:*T, n:usz, ilink:ity{name}) = {
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def wt = width{T}
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def prim = to_prim{name}
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def stop = m
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@ -364,33 +365,47 @@ fn hashtab{T, name}(rp:*rty{name}, ip:*T, m:usz, fp:*T, n:usz) = {
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}
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def {hash,...vals} = tabs
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each{store{.,0,0}, ilink}
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def lookup=makelabel{}; def abort=makelabel{}; def dup=makelabel{}
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cc:usz = 0 # Collision counter
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has_maxh:u1 = 0
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def ind_maxh = each{{_}=>{mi:u32=0}, vals}
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def ind_maxh = @collect (prim=='⊐') {mi:u32=0}
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i:usz=0; while (1) {
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e := tern{m-i>b, i+b, m}
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while (i < e) {
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h := hash_val{load{ip,i}}; j := h>>sh
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h := hash_val{load{ip,if (prim!='⊒') i else (m-i-1)}}; j := h>>sh
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each{{mi}=>{mi|=i&-((h==maxh)&~has_maxh)}, ind_maxh}
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has_maxh |= h==maxh
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kv := each{load{.,j}, tabs}; def {k,..._} = kv
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kv := each{load{.,j}, tabs}; def {k,...kr} = kv
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# Robin Hood insertion
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j0 := j; je := j # Save value; end of chain (insert at j)
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if (k != maxh) {
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if (k == h) goto{dup}
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j0 := j; je := j # Save value; end of chain (insert at j)
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do {
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++je; knv := each{load{.,je}, tabs}; def {kn,..._} = knv
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if (kn == h) goto{dup}
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def c = promote{T, h >= k}
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each{store{.,je-c,.}, tabs, kv}
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j += c
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if (kn == h) goto{dup}
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each{store{.,je-c,.}, tabs, kv}
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each{=, kv, knv}
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} while (k != maxh)
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cc += cast_i{usz, je-j0}
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}
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each{store{., j, .}, tabs, tup{h,...aux**(m-i)}}
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setlabel{dup}
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if (prim!='⊒') {
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each{store{., j, .}, tabs, tup{h,...aux**(m-i)}}
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setlabel{dup}
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} else {
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# maxh entry either stores 0 or is the last entry and stores an
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# index, so this preserves all values
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++je; each{{p,v}=>store{p,je,v|load{p,je}}, vals, kr}
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each{store{.,j,0}, vals}
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store{hash, j, h}
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setlabel{dup}
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i1 := i+1
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each{{p,q} => store{p, i1, i1-load{q,j}}, ilink, vals}
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each{store{., j, .}, vals, tup{i1}}
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}
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++i
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}
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if (i == m) goto{lookup}
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@ -401,18 +416,28 @@ fn hashtab{T, name}(rp:*rty{name}, ip:*T, m:usz, fp:*T, n:usz) = {
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if (cc >= stop) goto{abort}
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}
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}
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setlabel{lookup}
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end := maxh>>sh + promote{T,ext} # Unreachable
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if (has_maxh) {
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if ((prim!='⊒') and has_maxh) {
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end=maxh>>sh; while (load{hash,end}!=maxh) ++end
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each{store{.,end,.}, vals, ind_maxh}
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}
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@for (rp, fp over n) {
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h := hash_val{fp}; j := h>>sh
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k:=undefined{T}; while ((k=load{hash,j}) < h) ++j
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rp = (if (prim=='∊') promote{i8, (k==h) & (j<end)}
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else i32~~(m - (load{tupsel{0,vals}, j} &- (k==h))))
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rp = (match (prim) {
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{('∊')} => promote{i8, (k==h) & (j<end)}
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{('⊐')} => i32~~(m - (load{tupsel{0,vals}, j} &- (k==h)))
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{('⊒')} => {
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def {inds} = vals
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ti := load{inds, j}; mi := ti &- (k==h)
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store{inds, j, ti - load{tupsel{0,ilink},mi}}
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i32~~(m - mi)
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}
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})
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}
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setlabel{abort}
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hash_free{}
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i == m # Whether it finished
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@ -421,4 +446,4 @@ fn hashtab{T, name}(rp:*rty{name}, ip:*T, m:usz, fp:*T, n:usz) = {
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def exp_hash{T, name} = {
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export{merge{name,'_c2_hash',fmtnat{width{T}}}, hashtab{T, name}}
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}
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each{{n}=>each{exp_hash{.,n},tup{u32}}, tup{'memberOf', 'indexOf'}}
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each{{n}=>each{exp_hash{.,n},tup{u32}}, names}
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