mirror of
https://github.com/golang/go
synced 2024-09-25 15:20:13 -06:00
runtime: convert equality functions to Go
LGTM=rsc R=rsc, khr CC=golang-codereviews https://golang.org/cl/121330043
This commit is contained in:
Keith Randall
parent
12666cb91d
commit
7aa4e5ac5f
@ -64,7 +64,6 @@ char *runtimeimport =
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"func @\"\".efaceeq (@\"\".i1·2 any, @\"\".i2·3 any) (@\"\".ret·1 bool)\n"
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"func @\"\".ifacethash (@\"\".i1·2 any) (@\"\".ret·1 uint32)\n"
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"func @\"\".efacethash (@\"\".i1·2 any) (@\"\".ret·1 uint32)\n"
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"func @\"\".equal (@\"\".typ·2 *byte, @\"\".x1·3 any, @\"\".x2·4 any) (@\"\".ret·1 bool)\n"
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"func @\"\".makemap (@\"\".mapType·2 *byte, @\"\".hint·3 int64) (@\"\".hmap·1 map[any]any)\n"
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"func @\"\".mapaccess1 (@\"\".mapType·2 *byte, @\"\".hmap·3 map[any]any, @\"\".key·4 *any) (@\"\".val·1 *any)\n"
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"func @\"\".mapaccess1_fast32 (@\"\".mapType·2 *byte, @\"\".hmap·3 map[any]any, @\"\".key·4 any) (@\"\".val·1 *any)\n"
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@ -96,12 +95,12 @@ char *runtimeimport =
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"func @\"\".makeslice (@\"\".typ·2 *byte, @\"\".nel·3 int64, @\"\".cap·4 int64) (@\"\".ary·1 []any)\n"
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"func @\"\".growslice (@\"\".typ·2 *byte, @\"\".old·3 []any, @\"\".n·4 int64) (@\"\".ary·1 []any)\n"
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"func @\"\".memmove (@\"\".to·1 *any, @\"\".frm·2 *any, @\"\".length·3 uintptr)\n"
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"func @\"\".memequal (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal8 (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal16 (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal32 (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal64 (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal128 (@\"\".eq·1 *bool, @\"\".size·2 uintptr, @\"\".x·3 *any, @\"\".y·4 *any)\n"
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"func @\"\".memequal (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".memequal8 (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".memequal16 (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".memequal32 (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".memequal64 (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".memequal128 (@\"\".x·1 *any, @\"\".y·2 *any, @\"\".size·3 uintptr) (? bool)\n"
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"func @\"\".int64div (? int64, ? int64) (? int64)\n"
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"func @\"\".uint64div (? uint64, ? uint64) (? uint64)\n"
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"func @\"\".int64mod (? int64, ? int64) (? int64)\n"
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@ -1055,6 +1055,19 @@ orderexpr(Node **np, Order *order)
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orderexpr(&n->left, order);
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n = ordercopyexpr(n, n->type, order, 1);
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break;
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case OEQ:
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case ONE:
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orderexpr(&n->left, order);
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orderexpr(&n->right, order);
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t = n->left->type;
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if(t->etype == TSTRUCT || isfixedarray(t)) {
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// for complex comparisons, we need both args to be
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// addressable so we can pass them to the runtime.
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orderaddrtemp(&n->left, order);
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orderaddrtemp(&n->right, order);
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}
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break;
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}
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lineno = lno;
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@ -1239,7 +1239,7 @@ static Sym*
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dalgsym(Type *t)
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{
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int ot;
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Sym *s, *hash, *hashfunc, *eq;
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Sym *s, *hash, *hashfunc, *eq, *eqfunc;
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char buf[100];
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// dalgsym is only called for a type that needs an algorithm table,
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@ -1251,15 +1251,18 @@ dalgsym(Type *t)
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eq = typesymprefix(".eq", t);
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geneq(eq, t);
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// make Go func (a closure) for calling the hash function from Go
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// make Go funcs (closures) for calling hash and equal from Go
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hashfunc = typesymprefix(".hashfunc", t);
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dsymptr(hashfunc, 0, hash, 0);
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ggloblsym(hashfunc, widthptr, DUPOK|RODATA);
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eqfunc = typesymprefix(".eqfunc", t);
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dsymptr(eqfunc, 0, eq, 0);
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ggloblsym(eqfunc, widthptr, DUPOK|RODATA);
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// ../../pkg/runtime/runtime.h:/Alg
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ot = 0;
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ot = dsymptr(s, ot, hashfunc, 0);
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ot = dsymptr(s, ot, eq, 0);
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ot = dsymptr(s, ot, eqfunc, 0);
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ot = dsymptr(s, ot, pkglookup("memprint", runtimepkg), 0);
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switch(t->width) {
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default:
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@ -84,8 +84,6 @@ func efaceeq(i1 any, i2 any) (ret bool)
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func ifacethash(i1 any) (ret uint32)
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func efacethash(i1 any) (ret uint32)
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func equal(typ *byte, x1, x2 any) (ret bool)
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// *byte is really *runtime.Type
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func makemap(mapType *byte, hint int64) (hmap map[any]any)
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func mapaccess1(mapType *byte, hmap map[any]any, key *any) (val *any)
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@ -124,12 +122,12 @@ func makeslice(typ *byte, nel int64, cap int64) (ary []any)
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func growslice(typ *byte, old []any, n int64) (ary []any)
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func memmove(to *any, frm *any, length uintptr)
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func memequal(eq *bool, size uintptr, x, y *any)
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func memequal8(eq *bool, size uintptr, x, y *any)
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func memequal16(eq *bool, size uintptr, x, y *any)
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func memequal32(eq *bool, size uintptr, x, y *any)
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func memequal64(eq *bool, size uintptr, x, y *any)
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func memequal128(eq *bool, size uintptr, x, y *any)
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func memequal(x, y *any, size uintptr) bool
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func memequal8(x, y *any, size uintptr) bool
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func memequal16(x, y *any, size uintptr) bool
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func memequal32(x, y *any, size uintptr) bool
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func memequal64(x, y *any, size uintptr) bool
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func memequal128(x, y *any, size uintptr) bool
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// only used on 32-bit
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func int64div(int64, int64) int64
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@ -2856,18 +2856,19 @@ genhash(Sym *sym, Type *t)
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}
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// Return node for
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// if p.field != q.field { *eq = false; return }
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// if p.field != q.field { return false }
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static Node*
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eqfield(Node *p, Node *q, Node *field, Node *eq)
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eqfield(Node *p, Node *q, Node *field)
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{
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Node *nif, *nx, *ny;
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Node *nif, *nx, *ny, *r;
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nx = nod(OXDOT, p, field);
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ny = nod(OXDOT, q, field);
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nif = nod(OIF, N, N);
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nif->ntest = nod(ONE, nx, ny);
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nif->nbody = list(nif->nbody, nod(OAS, nod(OIND, eq, N), nodbool(0)));
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nif->nbody = list(nif->nbody, nod(ORETURN, N, N));
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r = nod(ORETURN, N, N);
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r->list = list(r->list, nodbool(0));
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nif->nbody = list(nif->nbody, r);
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return nif;
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}
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@ -2896,11 +2897,11 @@ eqmemfunc(vlong size, Type *type)
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}
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// Return node for
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// if memequal(size, &p.field, &q.field, eq); !*eq { return }
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// if !memequal(&p.field, &q.field, size) { return false }
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static Node*
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eqmem(Node *p, Node *q, Node *field, vlong size, Node *eq)
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eqmem(Node *p, Node *q, Node *field, vlong size)
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{
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Node *nif, *nx, *ny, *call;
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Node *nif, *nx, *ny, *call, *r;
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nx = nod(OADDR, nod(OXDOT, p, field), N);
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nx->etype = 1; // does not escape
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@ -2910,15 +2911,16 @@ eqmem(Node *p, Node *q, Node *field, vlong size, Node *eq)
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typecheck(&ny, Erv);
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call = nod(OCALL, eqmemfunc(size, nx->type->type), N);
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call->list = list(call->list, eq);
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call->list = list(call->list, nodintconst(size));
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call->list = list(call->list, nx);
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call->list = list(call->list, ny);
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call->list = list(call->list, nodintconst(size));
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nif = nod(OIF, N, N);
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nif->ninit = list(nif->ninit, call);
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nif->ntest = nod(ONOT, nod(OIND, eq, N), N);
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nif->nbody = list(nif->nbody, nod(ORETURN, N, N));
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nif->ntest = nod(ONOT, call, N);
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r = nod(ORETURN, N, N);
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r->list = list(r->list, nodbool(0));
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nif->nbody = list(nif->nbody, r);
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return nif;
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}
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@ -2928,7 +2930,7 @@ eqmem(Node *p, Node *q, Node *field, vlong size, Node *eq)
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void
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geneq(Sym *sym, Type *t)
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{
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Node *n, *fn, *np, *neq, *nq, *tfn, *nif, *ni, *nx, *ny, *nrange;
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Node *n, *fn, *np, *nq, *tfn, *nif, *ni, *nx, *ny, *nrange, *r;
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Type *t1, *first;
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int old_safemode;
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int64 size;
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@ -2941,24 +2943,23 @@ geneq(Sym *sym, Type *t)
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dclcontext = PEXTERN;
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markdcl();
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// func sym(eq *bool, s uintptr, p, q *T)
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// func sym(p, q *T, s uintptr) bool
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fn = nod(ODCLFUNC, N, N);
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fn->nname = newname(sym);
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fn->nname->class = PFUNC;
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tfn = nod(OTFUNC, N, N);
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fn->nname->ntype = tfn;
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n = nod(ODCLFIELD, newname(lookup("eq")), typenod(ptrto(types[TBOOL])));
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tfn->list = list(tfn->list, n);
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neq = n->left;
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n = nod(ODCLFIELD, newname(lookup("s")), typenod(types[TUINTPTR]));
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tfn->list = list(tfn->list, n);
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n = nod(ODCLFIELD, newname(lookup("p")), typenod(ptrto(t)));
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tfn->list = list(tfn->list, n);
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np = n->left;
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n = nod(ODCLFIELD, newname(lookup("q")), typenod(ptrto(t)));
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tfn->list = list(tfn->list, n);
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nq = n->left;
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n = nod(ODCLFIELD, newname(lookup("s")), typenod(types[TUINTPTR]));
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tfn->list = list(tfn->list, n);
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n = nod(ODCLFIELD, N, typenod(types[TBOOL]));
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tfn->rlist = list(tfn->rlist, n);
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funchdr(fn);
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@ -2984,7 +2985,7 @@ geneq(Sym *sym, Type *t)
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colasdefn(nrange->list, nrange);
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ni = nrange->list->n;
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// if p[i] != q[i] { *eq = false; return }
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// if p[i] != q[i] { return false }
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nx = nod(OINDEX, np, ni);
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nx->bounded = 1;
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ny = nod(OINDEX, nq, ni);
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@ -2992,13 +2993,11 @@ geneq(Sym *sym, Type *t)
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nif = nod(OIF, N, N);
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nif->ntest = nod(ONE, nx, ny);
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nif->nbody = list(nif->nbody, nod(OAS, nod(OIND, neq, N), nodbool(0)));
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nif->nbody = list(nif->nbody, nod(ORETURN, N, N));
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r = nod(ORETURN, N, N);
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r->list = list(r->list, nodbool(0));
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nif->nbody = list(nif->nbody, r);
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nrange->nbody = list(nrange->nbody, nif);
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fn->nbody = list(fn->nbody, nrange);
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// *eq = true;
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fn->nbody = list(fn->nbody, nod(OAS, nod(OIND, neq, N), nodbool(1)));
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break;
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case TSTRUCT:
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@ -3023,16 +3022,16 @@ geneq(Sym *sym, Type *t)
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// cross-package unexported fields.
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if(first != T) {
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if(first->down == t1) {
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym), neq));
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym)));
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} else if(first->down->down == t1) {
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym), neq));
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym)));
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first = first->down;
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if(!isblanksym(first->sym))
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym), neq));
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(first->sym)));
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} else {
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// More than two fields: use memequal.
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size = offend - first->width; // first->width is offset
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fn->nbody = list(fn->nbody, eqmem(np, nq, newname(first->sym), size, neq));
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fn->nbody = list(fn->nbody, eqmem(np, nq, newname(first->sym), size));
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}
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first = T;
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}
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@ -3042,14 +3041,17 @@ geneq(Sym *sym, Type *t)
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continue;
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// Check this field, which is not just memory.
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(t1->sym), neq));
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fn->nbody = list(fn->nbody, eqfield(np, nq, newname(t1->sym)));
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}
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// *eq = true;
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fn->nbody = list(fn->nbody, nod(OAS, nod(OIND, neq, N), nodbool(1)));
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break;
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}
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// return true
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r = nod(ORETURN, N, N);
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r->list = list(r->list, nodbool(1));
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fn->nbody = list(fn->nbody, r);
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if(debug['r'])
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dumplist("geneq body", fn->nbody);
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@ -3013,10 +3013,10 @@ eqfor(Type *t)
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n = newname(sym);
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n->class = PFUNC;
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ntype = nod(OTFUNC, N, N);
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(ptrto(types[TBOOL]))));
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(ptrto(t))));
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(ptrto(t))));
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(types[TUINTPTR])));
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(ptrto(t))));
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ntype->list = list(ntype->list, nod(ODCLFIELD, N, typenod(ptrto(t))));
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ntype->rlist = list(ntype->rlist, nod(ODCLFIELD, N, typenod(types[TBOOL])));
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typecheck(&ntype, Etype);
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n->type = ntype->type;
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return n;
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@ -3037,10 +3037,9 @@ countfield(Type *t)
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static void
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walkcompare(Node **np, NodeList **init)
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{
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Node *n, *l, *r, *fn, *call, *a, *li, *ri, *expr;
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Node *n, *l, *r, *call, *a, *li, *ri, *expr;
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int andor, i;
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Type *t, *t1;
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static Node *tempbool;
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n = *np;
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@ -3058,8 +3057,9 @@ walkcompare(Node **np, NodeList **init)
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break;
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}
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if(!islvalue(n->left) || !islvalue(n->right))
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goto hard;
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if(!islvalue(n->left) || !islvalue(n->right)) {
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fatal("arguments of comparison must be lvalues");
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}
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l = temp(ptrto(t));
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a = nod(OAS, l, nod(OADDR, n->left, N));
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@ -3118,57 +3118,16 @@ walkcompare(Node **np, NodeList **init)
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goto ret;
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}
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// Chose not to inline, but still have addresses.
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// Call equality function directly.
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// The equality function requires a bool pointer for
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// storing its address, because it has to be callable
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// from C, and C can't access an ordinary Go return value.
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// To avoid creating many temporaries, cache one per function.
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if(tempbool == N || tempbool->curfn != curfn)
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tempbool = temp(types[TBOOL]);
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// Chose not to inline. Call equality function directly.
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call = nod(OCALL, eqfor(t), N);
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a = nod(OADDR, tempbool, N);
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a->etype = 1; // does not escape
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call->list = list(call->list, a);
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call->list = list(call->list, nodintconst(t->width));
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call->list = list(call->list, l);
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call->list = list(call->list, r);
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typecheck(&call, Etop);
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walkstmt(&call);
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*init = list(*init, call);
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// tempbool cannot be used directly as multiple comparison
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// expressions may exist in the same statement. Create another
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// temporary to hold the value (its address is not taken so it can
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// be optimized away).
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r = temp(types[TBOOL]);
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a = nod(OAS, r, tempbool);
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typecheck(&a, Etop);
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walkstmt(&a);
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*init = list(*init, a);
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|
||||
call->list = list(call->list, nodintconst(t->width));
|
||||
r = call;
|
||||
if(n->op != OEQ)
|
||||
r = nod(ONOT, r, N);
|
||||
goto ret;
|
||||
|
||||
hard:
|
||||
// Cannot take address of one or both of the operands.
|
||||
// Instead, pass directly to runtime helper function.
|
||||
// Easier on the stack than passing the address
|
||||
// of temporary variables, because we are better at reusing
|
||||
// the argument space than temporary variable space.
|
||||
fn = syslook("equal", 1);
|
||||
l = n->left;
|
||||
r = n->right;
|
||||
argtype(fn, n->left->type);
|
||||
argtype(fn, n->left->type);
|
||||
r = mkcall1(fn, n->type, init, typename(n->left->type), l, r);
|
||||
if(n->op == ONE) {
|
||||
r = nod(ONOT, r, N);
|
||||
}
|
||||
goto ret;
|
||||
|
||||
ret:
|
||||
typecheck(&r, Erv);
|
||||
walkexpr(&r, init);
|
||||
|
||||
@ -142,6 +142,106 @@ func nilinterhash(a *eface, s, h uintptr) uintptr {
|
||||
}
|
||||
}
|
||||
|
||||
func memequal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
if p == q {
|
||||
return true
|
||||
}
|
||||
return memeq(p, q, size)
|
||||
}
|
||||
|
||||
func memequal0(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return true
|
||||
}
|
||||
func memequal8(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*int8)(p) == *(*int8)(q)
|
||||
}
|
||||
func memequal16(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*int16)(p) == *(*int16)(q)
|
||||
}
|
||||
func memequal32(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*int32)(p) == *(*int32)(q)
|
||||
}
|
||||
func memequal64(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*int64)(p) == *(*int64)(q)
|
||||
}
|
||||
func memequal128(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*[2]int64)(p) == *(*[2]int64)(q)
|
||||
}
|
||||
func f32equal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*float32)(p) == *(*float32)(q)
|
||||
}
|
||||
func f64equal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*float64)(p) == *(*float64)(q)
|
||||
}
|
||||
func c64equal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*complex64)(p) == *(*complex64)(q)
|
||||
}
|
||||
func c128equal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*complex128)(p) == *(*complex128)(q)
|
||||
}
|
||||
func strequal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return *(*string)(p) == *(*string)(q)
|
||||
}
|
||||
func interequal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return ifaceeq(*(*interface {
|
||||
f()
|
||||
})(p), *(*interface {
|
||||
f()
|
||||
})(q))
|
||||
}
|
||||
func nilinterequal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
return efaceeq(*(*interface{})(p), *(*interface{})(q))
|
||||
}
|
||||
func efaceeq(p, q interface{}) bool {
|
||||
x := (*eface)(unsafe.Pointer(&p))
|
||||
y := (*eface)(unsafe.Pointer(&q))
|
||||
t := x._type
|
||||
if t != y._type {
|
||||
return false
|
||||
}
|
||||
if t == nil {
|
||||
return true
|
||||
}
|
||||
eq := goalg(t.alg).equal
|
||||
if **(**uintptr)(unsafe.Pointer(&eq)) == noequalcode {
|
||||
// calling noequal will panic too,
|
||||
// but we can print a better error.
|
||||
panic(errorString("comparing uncomparable type " + *t._string))
|
||||
}
|
||||
if uintptr(t.size) <= ptrSize {
|
||||
return eq(noescape(unsafe.Pointer(&x.data)), noescape(unsafe.Pointer(&y.data)), uintptr(t.size))
|
||||
}
|
||||
return eq(x.data, y.data, uintptr(t.size))
|
||||
}
|
||||
func ifaceeq(p, q interface {
|
||||
f()
|
||||
}) bool {
|
||||
x := (*iface)(unsafe.Pointer(&p))
|
||||
y := (*iface)(unsafe.Pointer(&q))
|
||||
xtab := x.tab
|
||||
if xtab != y.tab {
|
||||
return false
|
||||
}
|
||||
if xtab == nil {
|
||||
return true
|
||||
}
|
||||
t := xtab._type
|
||||
eq := goalg(t.alg).equal
|
||||
if **(**uintptr)(unsafe.Pointer(&eq)) == noequalcode {
|
||||
// calling noequal will panic too,
|
||||
// but we can print a better error.
|
||||
panic(errorString("comparing uncomparable type " + *t._string))
|
||||
}
|
||||
if uintptr(t.size) <= ptrSize {
|
||||
return eq(noescape(unsafe.Pointer(&x.data)), noescape(unsafe.Pointer(&y.data)), uintptr(t.size))
|
||||
}
|
||||
return eq(x.data, y.data, uintptr(t.size))
|
||||
}
|
||||
|
||||
func noequal(p, q unsafe.Pointer, size uintptr) bool {
|
||||
panic(errorString("comparing uncomparable types"))
|
||||
}
|
||||
|
||||
// Testing adapters for hash quality tests (see hash_test.go)
|
||||
func haveGoodHash() bool {
|
||||
return use_aeshash
|
||||
|
||||
@ -9,16 +9,6 @@ package runtime
|
||||
|
||||
bool runtime·use_aeshash;
|
||||
|
||||
void
|
||||
runtime·memequal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
if(a == b) {
|
||||
*eq = 1;
|
||||
return;
|
||||
}
|
||||
*eq = runtime·memeq(a, b, s);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memprint(uintptr s, void *a)
|
||||
{
|
||||
@ -52,15 +42,6 @@ runtime·memcopy(uintptr s, void *a, void *b)
|
||||
runtime·memmove(a, b, s);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal0(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
USED(a);
|
||||
USED(b);
|
||||
*eq = true;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy0(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -69,13 +50,6 @@ runtime·memcopy0(uintptr s, void *a, void *b)
|
||||
USED(b);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal8(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(uint8*)a == *(uint8*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy8(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -87,13 +61,6 @@ runtime·memcopy8(uintptr s, void *a, void *b)
|
||||
*(uint8*)a = *(uint8*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal16(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(uint16*)a == *(uint16*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy16(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -105,13 +72,6 @@ runtime·memcopy16(uintptr s, void *a, void *b)
|
||||
*(uint16*)a = *(uint16*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal32(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(uint32*)a == *(uint32*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy32(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -123,13 +83,6 @@ runtime·memcopy32(uintptr s, void *a, void *b)
|
||||
*(uint32*)a = *(uint32*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal64(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(uint64*)a == *(uint64*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy64(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -141,13 +94,6 @@ runtime·memcopy64(uintptr s, void *a, void *b)
|
||||
*(uint64*)a = *(uint64*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memequal128(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = ((uint64*)a)[0] == ((uint64*)b)[0] && ((uint64*)a)[1] == ((uint64*)b)[1];
|
||||
}
|
||||
|
||||
void
|
||||
runtime·memcopy128(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -161,42 +107,6 @@ runtime·memcopy128(uintptr s, void *a, void *b)
|
||||
((uint64*)a)[1] = ((uint64*)b)[1];
|
||||
}
|
||||
|
||||
void
|
||||
runtime·f32equal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(float32*)a == *(float32*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·f64equal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = *(float64*)a == *(float64*)b;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·c64equal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
Complex64 *ca, *cb;
|
||||
|
||||
USED(s);
|
||||
ca = a;
|
||||
cb = b;
|
||||
*eq = ca->real == cb->real && ca->imag == cb->imag;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·c128equal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
Complex128 *ca, *cb;
|
||||
|
||||
USED(s);
|
||||
ca = a;
|
||||
cb = b;
|
||||
*eq = ca->real == cb->real && ca->imag == cb->imag;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·algslicecopy(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -212,27 +122,6 @@ runtime·algslicecopy(uintptr s, void *a, void *b)
|
||||
((Slice*)a)->cap = ((Slice*)b)->cap;
|
||||
}
|
||||
|
||||
void
|
||||
runtime·strequal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
intgo alen;
|
||||
byte *s1, *s2;
|
||||
|
||||
USED(s);
|
||||
alen = ((String*)a)->len;
|
||||
if(alen != ((String*)b)->len) {
|
||||
*eq = false;
|
||||
return;
|
||||
}
|
||||
s1 = ((String*)a)->str;
|
||||
s2 = ((String*)b)->str;
|
||||
if(s1 == s2) {
|
||||
*eq = true;
|
||||
return;
|
||||
}
|
||||
*eq = runtime·memeq(s1, s2, alen);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·strprint(uintptr s, void *a)
|
||||
{
|
||||
@ -260,13 +149,6 @@ runtime·interprint(uintptr s, void *a)
|
||||
runtime·printiface_c(*(Iface*)a);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·interequal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = runtime·ifaceeq_c(*(Iface*)a, *(Iface*)b);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·intercopy(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -287,13 +169,6 @@ runtime·nilinterprint(uintptr s, void *a)
|
||||
runtime·printeface_c(*(Eface*)a);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·nilinterequal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
*eq = runtime·efaceeq_c(*(Eface*)a, *(Eface*)b);
|
||||
}
|
||||
|
||||
void
|
||||
runtime·nilintercopy(uintptr s, void *a, void *b)
|
||||
{
|
||||
@ -310,16 +185,6 @@ runtime·nilintercopy(uintptr s, void *a, void *b)
|
||||
extern uintptr runtime·nohashcode;
|
||||
extern uintptr runtime·noequalcode;
|
||||
|
||||
void
|
||||
runtime·noequal(bool *eq, uintptr s, void *a, void *b)
|
||||
{
|
||||
USED(s);
|
||||
USED(a);
|
||||
USED(b);
|
||||
USED(eq);
|
||||
runtime·panicstring("comparing uncomparable types");
|
||||
}
|
||||
|
||||
static FuncVal memhashfunc = {(void*)runtime·memhash};
|
||||
static FuncVal nohashfunc = {(void*)runtime·nohash};
|
||||
static FuncVal strhashfunc = {(void*)runtime·strhash};
|
||||
@ -335,31 +200,48 @@ static FuncVal aeshash32func = {(void*)runtime·aeshash32};
|
||||
static FuncVal aeshash64func = {(void*)runtime·aeshash64};
|
||||
static FuncVal aeshashstrfunc = {(void*)runtime·aeshashstr};
|
||||
|
||||
static FuncVal memequalfunc = {(void*)runtime·memequal};
|
||||
static FuncVal noequalfunc = {(void*)runtime·noequal};
|
||||
static FuncVal strequalfunc = {(void*)runtime·strequal};
|
||||
static FuncVal interequalfunc = {(void*)runtime·interequal};
|
||||
static FuncVal nilinterequalfunc = {(void*)runtime·nilinterequal};
|
||||
static FuncVal f32equalfunc = {(void*)runtime·f32equal};
|
||||
static FuncVal f64equalfunc = {(void*)runtime·f64equal};
|
||||
static FuncVal c64equalfunc = {(void*)runtime·c64equal};
|
||||
static FuncVal c128equalfunc = {(void*)runtime·c128equal};
|
||||
static FuncVal memequal0func = {(void*)runtime·memequal0};
|
||||
static FuncVal memequal8func = {(void*)runtime·memequal8};
|
||||
static FuncVal memequal16func = {(void*)runtime·memequal16};
|
||||
static FuncVal memequal32func = {(void*)runtime·memequal32};
|
||||
static FuncVal memequal64func = {(void*)runtime·memequal64};
|
||||
static FuncVal memequal128func = {(void*)runtime·memequal128};
|
||||
|
||||
|
||||
Alg
|
||||
runtime·algarray[] =
|
||||
{
|
||||
[AMEM] { &memhashfunc, runtime·memequal, runtime·memprint, runtime·memcopy },
|
||||
[ANOEQ] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy },
|
||||
[ASTRING] { &strhashfunc, runtime·strequal, runtime·strprint, runtime·strcopy },
|
||||
[AINTER] { &interhashfunc, runtime·interequal, runtime·interprint, runtime·intercopy },
|
||||
[ANILINTER] { &nilinterhashfunc, runtime·nilinterequal, runtime·nilinterprint, runtime·nilintercopy },
|
||||
[ASLICE] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·algslicecopy },
|
||||
[AFLOAT32] { &f32hashfunc, runtime·f32equal, runtime·memprint, runtime·memcopy },
|
||||
[AFLOAT64] { &f64hashfunc, runtime·f64equal, runtime·memprint, runtime·memcopy },
|
||||
[ACPLX64] { &c64hashfunc, runtime·c64equal, runtime·memprint, runtime·memcopy },
|
||||
[ACPLX128] { &c128hashfunc, runtime·c128equal, runtime·memprint, runtime·memcopy },
|
||||
[AMEM0] { &memhashfunc, runtime·memequal0, runtime·memprint, runtime·memcopy0 },
|
||||
[AMEM8] { &memhashfunc, runtime·memequal8, runtime·memprint, runtime·memcopy8 },
|
||||
[AMEM16] { &memhashfunc, runtime·memequal16, runtime·memprint, runtime·memcopy16 },
|
||||
[AMEM32] { &memhashfunc, runtime·memequal32, runtime·memprint, runtime·memcopy32 },
|
||||
[AMEM64] { &memhashfunc, runtime·memequal64, runtime·memprint, runtime·memcopy64 },
|
||||
[AMEM128] { &memhashfunc, runtime·memequal128, runtime·memprint, runtime·memcopy128 },
|
||||
[ANOEQ0] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy0 },
|
||||
[ANOEQ8] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy8 },
|
||||
[ANOEQ16] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy16 },
|
||||
[ANOEQ32] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy32 },
|
||||
[ANOEQ64] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy64 },
|
||||
[ANOEQ128] { &nohashfunc, runtime·noequal, runtime·memprint, runtime·memcopy128 },
|
||||
[AMEM] { &memhashfunc, &memequalfunc, runtime·memprint, runtime·memcopy },
|
||||
[ANOEQ] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy },
|
||||
[ASTRING] { &strhashfunc, &strequalfunc, runtime·strprint, runtime·strcopy },
|
||||
[AINTER] { &interhashfunc, &interequalfunc, runtime·interprint, runtime·intercopy },
|
||||
[ANILINTER] { &nilinterhashfunc, &nilinterequalfunc, runtime·nilinterprint, runtime·nilintercopy },
|
||||
[ASLICE] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·algslicecopy },
|
||||
[AFLOAT32] { &f32hashfunc, &f32equalfunc, runtime·memprint, runtime·memcopy },
|
||||
[AFLOAT64] { &f64hashfunc, &f64equalfunc, runtime·memprint, runtime·memcopy },
|
||||
[ACPLX64] { &c64hashfunc, &c64equalfunc, runtime·memprint, runtime·memcopy },
|
||||
[ACPLX128] { &c128hashfunc, &c128equalfunc, runtime·memprint, runtime·memcopy },
|
||||
[AMEM0] { &memhashfunc, &memequal0func, runtime·memprint, runtime·memcopy0 },
|
||||
[AMEM8] { &memhashfunc, &memequal8func, runtime·memprint, runtime·memcopy8 },
|
||||
[AMEM16] { &memhashfunc, &memequal16func, runtime·memprint, runtime·memcopy16 },
|
||||
[AMEM32] { &memhashfunc, &memequal32func, runtime·memprint, runtime·memcopy32 },
|
||||
[AMEM64] { &memhashfunc, &memequal64func, runtime·memprint, runtime·memcopy64 },
|
||||
[AMEM128] { &memhashfunc, &memequal128func, runtime·memprint, runtime·memcopy128 },
|
||||
[ANOEQ0] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy0 },
|
||||
[ANOEQ8] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy8 },
|
||||
[ANOEQ16] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy16 },
|
||||
[ANOEQ32] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy32 },
|
||||
[ANOEQ64] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy64 },
|
||||
[ANOEQ128] { &nohashfunc, &noequalfunc, runtime·memprint, runtime·memcopy128 },
|
||||
};
|
||||
|
||||
// Runtime helpers.
|
||||
@ -406,20 +288,6 @@ runtime·hashinit(void)
|
||||
}
|
||||
}
|
||||
|
||||
// func equal(t *Type, x T, y T) (ret bool)
|
||||
#pragma textflag NOSPLIT
|
||||
void
|
||||
runtime·equal(Type *t, ...)
|
||||
{
|
||||
byte *x, *y;
|
||||
bool *ret;
|
||||
|
||||
x = (byte*)ROUND((uintptr)(&t+1), t->align);
|
||||
y = x + t->size;
|
||||
ret = (bool*)ROUND((uintptr)(y+t->size), Structrnd);
|
||||
t->alg->equal(ret, t->size, x, y);
|
||||
}
|
||||
|
||||
// Testing adapter for memclr
|
||||
func memclrBytes(s Slice) {
|
||||
runtime·memclr(s.array, s.len);
|
||||
|
||||
@ -1149,13 +1149,7 @@ DATA shifts<>+0xfc(SB)/4, $0xff0f0e0d
|
||||
|
||||
GLOBL shifts<>(SB),RODATA,$256
|
||||
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-12
|
||||
MOVL a+0(FP), SI
|
||||
MOVL b+4(FP), DI
|
||||
MOVL count+8(FP), BX
|
||||
JMP runtime·memeqbody(SB)
|
||||
|
||||
TEXT runtime·gomemeq(SB),NOSPLIT,$0-13
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-13
|
||||
MOVL a+0(FP), SI
|
||||
MOVL b+4(FP), DI
|
||||
MOVL size+8(FP), BX
|
||||
@ -2266,38 +2260,3 @@ TEXT runtime·fastrand2(SB), NOSPLIT, $0-4
|
||||
MOVL DX, m_fastrand(AX)
|
||||
MOVL DX, ret+0(FP)
|
||||
RET
|
||||
|
||||
// The goeq trampoline is necessary while we have
|
||||
// both Go and C calls to alg functions. Once we move all call
|
||||
// sites to Go, we can redo the eq functions to use the
|
||||
// Go calling convention and remove this.
|
||||
|
||||
// convert call to:
|
||||
// func (alg unsafe.Pointer, p, q unsafe.Pointer, size uintptr) bool
|
||||
// to:
|
||||
// func (eq *bool, size uintptr, p, q unsafe.Pointer)
|
||||
TEXT runtime·goeq(SB), NOSPLIT, $16-17
|
||||
FUNCDATA $FUNCDATA_ArgsPointerMaps,gcargs_goeq<>(SB)
|
||||
FUNCDATA $FUNCDATA_LocalsPointerMaps,gclocals_goeq<>(SB)
|
||||
MOVL alg+0(FP), AX
|
||||
MOVL alg_equal(AX), AX
|
||||
MOVL p+4(FP), CX
|
||||
MOVL q+8(FP), DX
|
||||
MOVL size+12(FP), DI
|
||||
LEAL ret+16(FP), SI
|
||||
MOVL SI, 0(SP)
|
||||
MOVL DI, 4(SP)
|
||||
MOVL CX, 8(SP)
|
||||
MOVL DX, 12(SP)
|
||||
PCDATA $PCDATA_StackMapIndex, $0
|
||||
CALL *AX
|
||||
RET
|
||||
|
||||
DATA gcargs_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gcargs_goeq<>+0x04(SB)/4, $10 // 5 args
|
||||
DATA gcargs_goeq<>+0x08(SB)/4, $(const_BitsPointer+(const_BitsPointer<<2)+(const_BitsPointer<<4))
|
||||
GLOBL gcargs_goeq<>(SB),RODATA,$12
|
||||
|
||||
DATA gclocals_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gclocals_goeq<>+0x04(SB)/4, $0 // 0 locals
|
||||
GLOBL gclocals_goeq<>(SB),RODATA,$8
|
||||
|
||||
@ -1117,13 +1117,7 @@ DATA shifts<>+0xf0(SB)/8, $0x0807060504030201
|
||||
DATA shifts<>+0xf8(SB)/8, $0xff0f0e0d0c0b0a09
|
||||
GLOBL shifts<>(SB),RODATA,$256
|
||||
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-24
|
||||
MOVQ a+0(FP), SI
|
||||
MOVQ b+8(FP), DI
|
||||
MOVQ count+16(FP), BX
|
||||
JMP runtime·memeqbody(SB)
|
||||
|
||||
TEXT runtime·gomemeq(SB),NOSPLIT,$0-25
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-25
|
||||
MOVQ a+0(FP), SI
|
||||
MOVQ b+8(FP), DI
|
||||
MOVQ size+16(FP), BX
|
||||
@ -2305,38 +2299,3 @@ TEXT runtime·fastrand2(SB), NOSPLIT, $0-4
|
||||
MOVL DX, m_fastrand(AX)
|
||||
MOVL DX, ret+0(FP)
|
||||
RET
|
||||
|
||||
// goeq trampoline is necessary while we have
|
||||
// both Go and C calls to alg functions. Once we move all call
|
||||
// sites to Go, we can redo the eq function to use the
|
||||
// Go calling convention and remove this.
|
||||
|
||||
// convert call to:
|
||||
// func (alg unsafe.Pointer, p, q unsafe.Pointer, size uintptr) bool
|
||||
// to:
|
||||
// func (eq *bool, size uintptr, p, q unsafe.Pointer)
|
||||
TEXT runtime·goeq(SB), NOSPLIT, $32-33
|
||||
FUNCDATA $FUNCDATA_ArgsPointerMaps,gcargs_goeq<>(SB)
|
||||
FUNCDATA $FUNCDATA_LocalsPointerMaps,gclocals_goeq<>(SB)
|
||||
MOVQ alg+0(FP), AX
|
||||
MOVQ alg_equal(AX), AX
|
||||
MOVQ p+8(FP), CX
|
||||
MOVQ q+16(FP), DX
|
||||
MOVQ size+24(FP), DI
|
||||
LEAQ ret+32(FP), SI
|
||||
MOVQ SI, 0(SP)
|
||||
MOVQ DI, 8(SP)
|
||||
MOVQ CX, 16(SP)
|
||||
MOVQ DX, 24(SP)
|
||||
PCDATA $PCDATA_StackMapIndex, $0
|
||||
CALL *AX
|
||||
RET
|
||||
|
||||
DATA gcargs_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gcargs_goeq<>+0x04(SB)/4, $10 // 5 args
|
||||
DATA gcargs_goeq<>+0x08(SB)/4, $(const_BitsPointer+(const_BitsPointer<<2)+(const_BitsPointer<<4))
|
||||
GLOBL gcargs_goeq<>(SB),RODATA,$12
|
||||
|
||||
DATA gclocals_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gclocals_goeq<>+0x04(SB)/4, $0 // 0 locals
|
||||
GLOBL gclocals_goeq<>(SB),RODATA,$8
|
||||
|
||||
@ -775,13 +775,7 @@ TEXT runtime·aeshash32(SB),NOSPLIT,$0-24
|
||||
TEXT runtime·aeshash64(SB),NOSPLIT,$0-24
|
||||
RET
|
||||
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-12
|
||||
MOVL a+0(FP), SI
|
||||
MOVL b+4(FP), DI
|
||||
MOVL count+8(FP), BX
|
||||
JMP runtime·memeqbody(SB)
|
||||
|
||||
TEXT runtime·gomemeq(SB),NOSPLIT,$0-17
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$0-17
|
||||
MOVL a+0(FP), SI
|
||||
MOVL b+4(FP), DI
|
||||
MOVL size+8(FP), BX
|
||||
@ -1180,38 +1174,3 @@ TEXT runtime·fastrand2(SB), NOSPLIT, $0-4
|
||||
MOVL DX, m_fastrand(AX)
|
||||
MOVL DX, ret+0(FP)
|
||||
RET
|
||||
|
||||
// The goeq trampoline is necessary while we have
|
||||
// both Go and C calls to alg functions. Once we move all call
|
||||
// sites to Go, we can redo the eq functions to use the
|
||||
// Go calling convention and remove this.
|
||||
|
||||
// convert call to:
|
||||
// func (alg unsafe.Pointer, p, q unsafe.Pointer, size uintptr) bool
|
||||
// to:
|
||||
// func (eq *bool, size uintptr, p, q unsafe.Pointer)
|
||||
TEXT runtime·goeq(SB), NOSPLIT, $16-17
|
||||
FUNCDATA $FUNCDATA_ArgsPointerMaps,gcargs_goeq<>(SB)
|
||||
FUNCDATA $FUNCDATA_LocalsPointerMaps,gclocals_goeq<>(SB)
|
||||
MOVL alg+0(FP), AX
|
||||
MOVL alg_equal(AX), AX
|
||||
MOVL p+4(FP), CX
|
||||
MOVL q+8(FP), DX
|
||||
MOVL size+12(FP), DI
|
||||
LEAL ret+16(FP), SI
|
||||
MOVL SI, 0(SP)
|
||||
MOVL DI, 4(SP)
|
||||
MOVL CX, 8(SP)
|
||||
MOVL DX, 12(SP)
|
||||
PCDATA $PCDATA_StackMapIndex, $0
|
||||
CALL *AX
|
||||
RET
|
||||
|
||||
DATA gcargs_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gcargs_goeq<>+0x04(SB)/4, $10 // 5 args
|
||||
DATA gcargs_goeq<>+0x08(SB)/4, $(const_BitsPointer+(const_BitsPointer<<2)+(const_BitsPointer<<4))
|
||||
GLOBL gcargs_goeq<>(SB),RODATA,$12
|
||||
|
||||
DATA gclocals_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gclocals_goeq<>+0x04(SB)/4, $0 // 0 locals
|
||||
GLOBL gclocals_goeq<>(SB),RODATA,$8
|
||||
|
||||
@ -703,24 +703,7 @@ TEXT runtime·aeshashstr(SB),NOSPLIT,$-4-0
|
||||
MOVW $0, R0
|
||||
MOVW (R0), R1
|
||||
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$-4-12
|
||||
MOVW a+0(FP), R1
|
||||
MOVW b+4(FP), R2
|
||||
MOVW n+8(FP), R3
|
||||
ADD R1, R3, R6
|
||||
MOVW $1, R0
|
||||
_next:
|
||||
CMP R1, R6
|
||||
RET.EQ
|
||||
MOVBU.P 1(R1), R4
|
||||
MOVBU.P 1(R2), R5
|
||||
CMP R4, R5
|
||||
BEQ _next
|
||||
|
||||
MOVW $0, R0
|
||||
RET
|
||||
|
||||
TEXT runtime·gomemeq(SB),NOSPLIT,$-4-13
|
||||
TEXT runtime·memeq(SB),NOSPLIT,$-4-13
|
||||
MOVW a+0(FP), R1
|
||||
MOVW b+4(FP), R2
|
||||
MOVW size+8(FP), R3
|
||||
@ -1268,38 +1251,3 @@ TEXT runtime·fastrand2(SB), NOSPLIT, $-4-4
|
||||
MOVW R0, m_fastrand(R1)
|
||||
MOVW R0, ret+0(FP)
|
||||
RET
|
||||
|
||||
// The goeq trampoline is necessary while we have
|
||||
// both Go and C calls to alg functions. Once we move all call
|
||||
// sites to Go, we can redo the eq functions to use the
|
||||
// Go calling convention and remove this.
|
||||
|
||||
// convert call to:
|
||||
// func (alg unsafe.Pointer, p, q unsafe.Pointer, size uintptr) bool
|
||||
// to:
|
||||
// func (eq *bool, size uintptr, p, q unsafe.Pointer)
|
||||
TEXT runtime·goeq(SB), NOSPLIT, $16-17
|
||||
FUNCDATA $FUNCDATA_ArgsPointerMaps,gcargs_goeq<>(SB)
|
||||
FUNCDATA $FUNCDATA_LocalsPointerMaps,gclocals_goeq<>(SB)
|
||||
MOVW alg+0(FP), R0
|
||||
MOVW alg_equal(R0), R0
|
||||
MOVW p+4(FP), R1
|
||||
MOVW q+8(FP), R2
|
||||
MOVW size+12(FP), R3
|
||||
ADD $40, R13, R4
|
||||
MOVW R4, 4(R13)
|
||||
MOVW R3, 8(R13)
|
||||
MOVW R2, 12(R13)
|
||||
MOVW R1, 16(R13)
|
||||
PCDATA $PCDATA_StackMapIndex, $0
|
||||
BL (R0)
|
||||
RET
|
||||
|
||||
DATA gcargs_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gcargs_goeq<>+0x04(SB)/4, $10 // 5 args
|
||||
DATA gcargs_goeq<>+0x08(SB)/4, $(const_BitsPointer+(const_BitsPointer<<2)+(const_BitsPointer<<4))
|
||||
GLOBL gcargs_goeq<>(SB),RODATA,$12
|
||||
|
||||
DATA gclocals_goeq<>+0x00(SB)/4, $1 // 1 stackmap
|
||||
DATA gclocals_goeq<>+0x04(SB)/4, $0 // 0 locals
|
||||
GLOBL gclocals_goeq<>(SB),RODATA,$8
|
||||
|
||||
@ -243,7 +243,8 @@ func mapaccess1(t *maptype, h *hmap, key unsafe.Pointer) unsafe.Pointer {
|
||||
if h == nil || h.count == 0 {
|
||||
return unsafe.Pointer(t.elem.zero)
|
||||
}
|
||||
hash := goalg(t.key.alg).hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
alg := goalg(t.key.alg)
|
||||
hash := alg.hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
m := uintptr(1)<<h.B - 1
|
||||
b := (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
|
||||
if c := h.oldbuckets; c != nil {
|
||||
@ -265,7 +266,7 @@ func mapaccess1(t *maptype, h *hmap, key unsafe.Pointer) unsafe.Pointer {
|
||||
if t.indirectkey != 0 {
|
||||
k = *((*unsafe.Pointer)(k))
|
||||
}
|
||||
if goeq(t.key.alg, key, k, uintptr(t.key.size)) {
|
||||
if alg.equal(key, k, uintptr(t.key.size)) {
|
||||
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
|
||||
if t.indirectvalue != 0 {
|
||||
v = *((*unsafe.Pointer)(v))
|
||||
@ -291,7 +292,8 @@ func mapaccess2(t *maptype, h *hmap, key unsafe.Pointer) (unsafe.Pointer, bool)
|
||||
if h == nil || h.count == 0 {
|
||||
return unsafe.Pointer(t.elem.zero), false
|
||||
}
|
||||
hash := goalg(t.key.alg).hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
alg := goalg(t.key.alg)
|
||||
hash := alg.hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
m := uintptr(1)<<h.B - 1
|
||||
b := (*bmap)(unsafe.Pointer(uintptr(h.buckets) + (hash&m)*uintptr(t.bucketsize)))
|
||||
if c := h.oldbuckets; c != nil {
|
||||
@ -313,7 +315,7 @@ func mapaccess2(t *maptype, h *hmap, key unsafe.Pointer) (unsafe.Pointer, bool)
|
||||
if t.indirectkey != 0 {
|
||||
k = *((*unsafe.Pointer)(k))
|
||||
}
|
||||
if goeq(t.key.alg, key, k, uintptr(t.key.size)) {
|
||||
if alg.equal(key, k, uintptr(t.key.size)) {
|
||||
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
|
||||
if t.indirectvalue != 0 {
|
||||
v = *((*unsafe.Pointer)(v))
|
||||
@ -333,7 +335,8 @@ func mapaccessK(t *maptype, h *hmap, key unsafe.Pointer) (unsafe.Pointer, unsafe
|
||||
if h == nil || h.count == 0 {
|
||||
return nil, nil
|
||||
}
|
||||
hash := goalg(t.key.alg).hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
alg := goalg(t.key.alg)
|
||||
hash := alg.hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
m := uintptr(1)<<h.B - 1
|
||||
b := (*bmap)(unsafe.Pointer(uintptr(h.buckets) + (hash&m)*uintptr(t.bucketsize)))
|
||||
if c := h.oldbuckets; c != nil {
|
||||
@ -355,7 +358,7 @@ func mapaccessK(t *maptype, h *hmap, key unsafe.Pointer) (unsafe.Pointer, unsafe
|
||||
if t.indirectkey != 0 {
|
||||
k = *((*unsafe.Pointer)(k))
|
||||
}
|
||||
if goeq(t.key.alg, key, k, uintptr(t.key.size)) {
|
||||
if alg.equal(key, k, uintptr(t.key.size)) {
|
||||
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
|
||||
if t.indirectvalue != 0 {
|
||||
v = *((*unsafe.Pointer)(v))
|
||||
@ -383,7 +386,8 @@ func mapassign1(t *maptype, h *hmap, key unsafe.Pointer, val unsafe.Pointer) {
|
||||
raceReadObjectPC(t.elem, val, callerpc, pc)
|
||||
}
|
||||
|
||||
hash := goalg(t.key.alg).hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
alg := goalg(t.key.alg)
|
||||
hash := alg.hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
|
||||
if h.buckets == nil {
|
||||
if checkgc {
|
||||
@ -421,7 +425,7 @@ again:
|
||||
if t.indirectkey != 0 {
|
||||
k2 = *((*unsafe.Pointer)(k2))
|
||||
}
|
||||
if !goeq(t.key.alg, key, k2, uintptr(t.key.size)) {
|
||||
if !alg.equal(key, k2, uintptr(t.key.size)) {
|
||||
continue
|
||||
}
|
||||
// already have a mapping for key. Update it.
|
||||
@ -492,7 +496,8 @@ func mapdelete(t *maptype, h *hmap, key unsafe.Pointer) {
|
||||
if h == nil || h.count == 0 {
|
||||
return
|
||||
}
|
||||
hash := goalg(t.key.alg).hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
alg := goalg(t.key.alg)
|
||||
hash := alg.hash(key, uintptr(t.key.size), uintptr(h.hash0))
|
||||
bucket := hash & (uintptr(1)<<h.B - 1)
|
||||
if h.oldbuckets != nil {
|
||||
growWork(t, h, bucket)
|
||||
@ -512,7 +517,7 @@ func mapdelete(t *maptype, h *hmap, key unsafe.Pointer) {
|
||||
if t.indirectkey != 0 {
|
||||
k2 = *((*unsafe.Pointer)(k2))
|
||||
}
|
||||
if !goeq(t.key.alg, key, k2, uintptr(t.key.size)) {
|
||||
if !alg.equal(key, k2, uintptr(t.key.size)) {
|
||||
continue
|
||||
}
|
||||
memclr(k, uintptr(t.keysize))
|
||||
@ -595,6 +600,7 @@ func mapiternext(it *hiter) {
|
||||
b := it.bptr
|
||||
i := it.i
|
||||
checkBucket := it.checkBucket
|
||||
alg := goalg(t.key.alg)
|
||||
|
||||
next:
|
||||
if b == nil {
|
||||
@ -645,10 +651,10 @@ next:
|
||||
if t.indirectkey != 0 {
|
||||
k2 = *((*unsafe.Pointer)(k2))
|
||||
}
|
||||
if goeq(t.key.alg, k2, k2, uintptr(t.key.size)) {
|
||||
if alg.equal(k2, k2, uintptr(t.key.size)) {
|
||||
// If the item in the oldbucket is not destined for
|
||||
// the current new bucket in the iteration, skip it.
|
||||
hash := goalg(t.key.alg).hash(k2, uintptr(t.key.size), uintptr(h.hash0))
|
||||
hash := alg.hash(k2, uintptr(t.key.size), uintptr(h.hash0))
|
||||
if hash&(uintptr(1)<<it.B-1) != checkBucket {
|
||||
continue
|
||||
}
|
||||
@ -682,7 +688,7 @@ next:
|
||||
if t.indirectkey != 0 {
|
||||
k2 = *((*unsafe.Pointer)(k2))
|
||||
}
|
||||
if goeq(t.key.alg, k2, k2, uintptr(t.key.size)) {
|
||||
if alg.equal(k2, k2, uintptr(t.key.size)) {
|
||||
// Check the current hash table for the data.
|
||||
// This code handles the case where the key
|
||||
// has been deleted, updated, or deleted and reinserted.
|
||||
@ -758,6 +764,7 @@ func growWork(t *maptype, h *hmap, bucket uintptr) {
|
||||
func evacuate(t *maptype, h *hmap, oldbucket uintptr) {
|
||||
b := (*bmap)(add(h.oldbuckets, oldbucket*uintptr(t.bucketsize)))
|
||||
newbit := uintptr(1) << (h.B - 1)
|
||||
alg := goalg(t.key.alg)
|
||||
if !evacuated(b) {
|
||||
// TODO: reuse overflow buckets instead of using new ones, if there
|
||||
// is no iterator using the old buckets. (If !oldIterator.)
|
||||
@ -788,9 +795,9 @@ func evacuate(t *maptype, h *hmap, oldbucket uintptr) {
|
||||
}
|
||||
// Compute hash to make our evacuation decision (whether we need
|
||||
// to send this key/value to bucket x or bucket y).
|
||||
hash := goalg(t.key.alg).hash(k2, uintptr(t.key.size), uintptr(h.hash0))
|
||||
hash := alg.hash(k2, uintptr(t.key.size), uintptr(h.hash0))
|
||||
if h.flags&iterator != 0 {
|
||||
if !goeq(t.key.alg, k2, k2, uintptr(t.key.size)) {
|
||||
if !alg.equal(k2, k2, uintptr(t.key.size)) {
|
||||
// If key != key (NaNs), then the hash could be (and probably
|
||||
// will be) entirely different from the old hash. Moreover,
|
||||
// it isn't reproducible. Reproducibility is required in the
|
||||
|
||||
@ -209,7 +209,7 @@ func mapaccess1_faststr(t *maptype, h *hmap, ky string) unsafe.Pointer {
|
||||
if k.len != key.len {
|
||||
continue
|
||||
}
|
||||
if k.str == key.str || gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if k.str == key.str || memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+i*uintptr(t.valuesize))
|
||||
}
|
||||
}
|
||||
@ -247,7 +247,7 @@ func mapaccess1_faststr(t *maptype, h *hmap, ky string) unsafe.Pointer {
|
||||
}
|
||||
if keymaybe != bucketCnt {
|
||||
k := (*stringStruct)(add(unsafe.Pointer(b), dataOffset+keymaybe*2*ptrSize))
|
||||
if gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+keymaybe*uintptr(t.valuesize))
|
||||
}
|
||||
}
|
||||
@ -277,7 +277,7 @@ dohash:
|
||||
if k.len != key.len {
|
||||
continue
|
||||
}
|
||||
if k.str == key.str || gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if k.str == key.str || memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+i*uintptr(t.valuesize))
|
||||
}
|
||||
}
|
||||
@ -313,7 +313,7 @@ func mapaccess2_faststr(t *maptype, h *hmap, ky string) (unsafe.Pointer, bool) {
|
||||
if k.len != key.len {
|
||||
continue
|
||||
}
|
||||
if k.str == key.str || gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if k.str == key.str || memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+i*uintptr(t.valuesize)), true
|
||||
}
|
||||
}
|
||||
@ -349,7 +349,7 @@ func mapaccess2_faststr(t *maptype, h *hmap, ky string) (unsafe.Pointer, bool) {
|
||||
}
|
||||
if keymaybe != bucketCnt {
|
||||
k := (*stringStruct)(add(unsafe.Pointer(b), dataOffset+keymaybe*2*ptrSize))
|
||||
if gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+keymaybe*uintptr(t.valuesize)), true
|
||||
}
|
||||
}
|
||||
@ -379,7 +379,7 @@ dohash:
|
||||
if k.len != key.len {
|
||||
continue
|
||||
}
|
||||
if k.str == key.str || gomemeq(k.str, key.str, uintptr(key.len)) {
|
||||
if k.str == key.str || memeq(k.str, key.str, uintptr(key.len)) {
|
||||
return add(unsafe.Pointer(b), dataOffset+bucketCnt*2*ptrSize+i*uintptr(t.valuesize)), true
|
||||
}
|
||||
}
|
||||
|
||||
@ -408,48 +408,6 @@ func assertE2E2(inter *interfacetype, e interface{}) (interface{}, bool) {
|
||||
return e, true
|
||||
}
|
||||
|
||||
func efaceeq(e1 interface{}, e2 interface{}) bool {
|
||||
p1 := (*eface)(unsafe.Pointer(&e1))
|
||||
p2 := (*eface)(unsafe.Pointer(&e2))
|
||||
t := p1._type
|
||||
if t != p2._type {
|
||||
return false
|
||||
}
|
||||
if t == nil {
|
||||
return true
|
||||
}
|
||||
|
||||
if *(*uintptr)(unsafe.Pointer(&t.alg.equal)) == noequalcode {
|
||||
panic(errorString("comparing uncomparable type " + *t._string))
|
||||
}
|
||||
size := uintptr(t.size)
|
||||
if size <= ptrSize {
|
||||
return goeq(t.alg, unsafe.Pointer(&p1.data), unsafe.Pointer(&p2.data), size)
|
||||
}
|
||||
return goeq(t.alg, p1.data, p2.data, size)
|
||||
}
|
||||
|
||||
func ifaceeq(i1 fInterface, i2 fInterface) bool {
|
||||
p1 := (*iface)(unsafe.Pointer(&i1))
|
||||
p2 := (*iface)(unsafe.Pointer(&i2))
|
||||
tab := p1.tab
|
||||
if tab != p2.tab {
|
||||
return false
|
||||
}
|
||||
if tab == nil {
|
||||
return true
|
||||
}
|
||||
t := tab._type
|
||||
if *(*uintptr)(unsafe.Pointer(&t.alg.equal)) == noequalcode {
|
||||
panic(errorString("comparing uncomparable type " + *t._string))
|
||||
}
|
||||
size := uintptr(t.size)
|
||||
if size <= ptrSize {
|
||||
return goeq(t.alg, unsafe.Pointer(&p1.data), unsafe.Pointer(&p2.data), size)
|
||||
}
|
||||
return goeq(t.alg, p1.data, p2.data, size)
|
||||
}
|
||||
|
||||
func ifacethash(i fInterface) uint32 {
|
||||
ip := (*iface)(unsafe.Pointer(&i))
|
||||
tab := ip.tab
|
||||
|
||||
@ -153,49 +153,3 @@ runtime·ifaceE2I2(InterfaceType *inter, Eface e, Iface *ret)
|
||||
ret->data = e.data;
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
ifaceeq1(void *data1, void *data2, Type *t)
|
||||
{
|
||||
uintptr size;
|
||||
Alg *alg;
|
||||
Eface err;
|
||||
bool eq;
|
||||
|
||||
alg = t->alg;
|
||||
size = t->size;
|
||||
|
||||
if(alg->equal == runtime·noequal) {
|
||||
// calling noequal will panic too,
|
||||
// but we can print a better error.
|
||||
runtime·newErrorString(runtime·catstring(runtime·gostringnocopy((byte*)"comparing uncomparable type "), *t->string), &err);
|
||||
runtime·panic(err);
|
||||
}
|
||||
|
||||
eq = 0;
|
||||
if(size <= sizeof(data1))
|
||||
alg->equal(&eq, size, &data1, &data2);
|
||||
else
|
||||
alg->equal(&eq, size, data1, data2);
|
||||
return eq;
|
||||
}
|
||||
|
||||
bool
|
||||
runtime·ifaceeq_c(Iface i1, Iface i2)
|
||||
{
|
||||
if(i1.tab != i2.tab)
|
||||
return false;
|
||||
if(i1.tab == nil)
|
||||
return true;
|
||||
return ifaceeq1(i1.data, i2.data, i1.tab->type);
|
||||
}
|
||||
|
||||
bool
|
||||
runtime·efaceeq_c(Eface e1, Eface e2)
|
||||
{
|
||||
if(e1.type != e2.type)
|
||||
return false;
|
||||
if(e1.type == nil)
|
||||
return true;
|
||||
return ifaceeq1(e1.data, e2.data, e1.type);
|
||||
}
|
||||
|
||||
@ -634,7 +634,7 @@ typedef struct Alg Alg;
|
||||
struct Alg
|
||||
{
|
||||
FuncVal* hash;
|
||||
void (*equal)(bool*, uintptr, void*, void*);
|
||||
FuncVal* equal;
|
||||
void (*print)(uintptr, void*);
|
||||
void (*copy)(uintptr, void*, void*);
|
||||
};
|
||||
@ -665,13 +665,21 @@ void runtime·aeshash32(void*, uintptr, uintptr, uintptr);
|
||||
void runtime·aeshash64(void*, uintptr, uintptr, uintptr);
|
||||
void runtime·aeshashstr(void*, uintptr, uintptr, uintptr);
|
||||
|
||||
void runtime·memequal(bool*, uintptr, void*, void*);
|
||||
void runtime·noequal(bool*, uintptr, void*, void*);
|
||||
void runtime·strequal(bool*, uintptr, void*, void*);
|
||||
void runtime·interequal(bool*, uintptr, void*, void*);
|
||||
void runtime·nilinterequal(bool*, uintptr, void*, void*);
|
||||
|
||||
bool runtime·memeq(void*, void*, uintptr);
|
||||
void runtime·memequal(void*, void*, uintptr, bool);
|
||||
void runtime·noequal(void*, void*, uintptr, bool);
|
||||
void runtime·strequal(void*, void*, uintptr, bool);
|
||||
void runtime·interequal(void*, void*, uintptr, bool);
|
||||
void runtime·nilinterequal(void*, void*, uintptr, bool);
|
||||
void runtime·f32equal(void*, void*, uintptr, bool);
|
||||
void runtime·f64equal(void*, void*, uintptr, bool);
|
||||
void runtime·c64equal(void*, void*, uintptr, bool);
|
||||
void runtime·c128equal(void*, void*, uintptr, bool);
|
||||
void runtime·memequal0(void*, void*, uintptr, bool);
|
||||
void runtime·memequal8(void*, void*, uintptr, bool);
|
||||
void runtime·memequal16(void*, void*, uintptr, bool);
|
||||
void runtime·memequal32(void*, void*, uintptr, bool);
|
||||
void runtime·memequal64(void*, void*, uintptr, bool);
|
||||
void runtime·memequal128(void*, void*, uintptr, bool);
|
||||
|
||||
void runtime·memprint(uintptr, void*);
|
||||
void runtime·strprint(uintptr, void*);
|
||||
@ -873,8 +881,6 @@ MCache* runtime·allocmcache(void);
|
||||
void runtime·freemcache(MCache*);
|
||||
void runtime·mallocinit(void);
|
||||
void runtime·chaninit(void);
|
||||
bool runtime·ifaceeq_c(Iface, Iface);
|
||||
bool runtime·efaceeq_c(Eface, Eface);
|
||||
void* runtime·mallocgc(uintptr size, Type* typ, uint32 flag);
|
||||
void runtime·runpanic(Panic*);
|
||||
uintptr runtime·getcallersp(void*);
|
||||
|
||||
@ -111,20 +111,12 @@ func starttheworld()
|
||||
func stoptheworld()
|
||||
func clearpools()
|
||||
|
||||
// in asm_*.s
|
||||
//go:noescape
|
||||
func gohash(a *alg, p unsafe.Pointer, size uintptr, seed uintptr) uintptr
|
||||
|
||||
// in asm_*.s
|
||||
//go:noescape
|
||||
func goeq(alg *alg, p, q unsafe.Pointer, size uintptr) bool
|
||||
|
||||
// exported value for testing
|
||||
var hashLoad = loadFactor
|
||||
|
||||
// in asm_*.s
|
||||
//go:noescape
|
||||
func gomemeq(a, b unsafe.Pointer, size uintptr) bool
|
||||
func memeq(a, b unsafe.Pointer, size uintptr) bool
|
||||
|
||||
// Code pointers for the nohash/noequal algorithms. Used for producing better error messages.
|
||||
var nohashcode uintptr
|
||||
@ -147,6 +139,9 @@ type goalgtype struct {
|
||||
// function for hashing objects of this type
|
||||
// (ptr to object, size, seed) -> hash
|
||||
hash func(unsafe.Pointer, uintptr, uintptr) uintptr
|
||||
// function for comparing objects of this type
|
||||
// (ptr to object A, ptr to object B, size) -> ==?
|
||||
equal func(unsafe.Pointer, unsafe.Pointer, uintptr) bool
|
||||
}
|
||||
|
||||
func goalg(a *alg) *goalgtype {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user