DrSocalkwe3n/luajit
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Redesign and harden string interning.

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Up to 40% faster on hash-intensive benchmarks.
With some ideas from Sokolov Yura.
This commit is contained in:
Mike Pall
2020-06-23 03:06:45 +02:00
parent a44f53acf5
commit ff34b48ddd
22 changed files with 394 additions and 202 deletions
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2
src/lj_asm_ppc.h
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@@ -721,7 +721,7 @@ static void asm_href(ASMState *as, IRIns *ir, IROp merge)
if (isk) {
/* Nothing to do. */
} else if (irt_isstr(kt)) {
emit_tai(as, PPCI_LWZ, tmp1, key, (int32_t)offsetof(GCstr, hash));
emit_tai(as, PPCI_LWZ, tmp1, key, (int32_t)offsetof(GCstr, sid));
} else { /* Must match with hash*() in lj_tab.c. */
emit_tab(as, PPCI_SUBF, tmp1, tmp2, tmp1);
emit_rotlwi(as, tmp2, tmp2, HASH_ROT3);