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js: optimize long operations

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This commit is contained in:
Alexey Andreev 2023-09-20 19:28:01 +02:00
parent 154bf7abd9
commit edf2d33f84
1 changed files with 4 additions and 3 deletions
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7
core/src/main/resources/org/teavm/backend/javascript/runtime.js
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@ -852,13 +852,14 @@ if (typeof BigInt !== "function") {
} else { } else {
Long_ZERO = BigInt(0); Long_ZERO = BigInt(0);
Long_create = function(lo, hi) { Long_create = function(lo, hi) {
return BigInt.asIntN(64, BigInt.asUintN(32, BigInt(lo)) | (BigInt(hi) << BigInt(32))); return BigInt.asIntN(64, BigInt.asUintN(64, BigInt(lo))
| BigInt.asUintN(64, (BigInt(hi) << BigInt(32))));
} }
Long_fromInt = function(val) { Long_fromInt = function(val) {
return BigInt(val); return BigInt.asIntN(64, BigInt(val | 0));
} }
Long_fromNumber = function(val) { Long_fromNumber = function(val) {
return BigInt(val >= 0 ? Math.floor(val) : Math.ceil(val)); return BigInt.asIntN(64, BigInt(val >= 0 ? Math.floor(val) : Math.ceil(val)));
} }
Long_toNumber = function(val) { Long_toNumber = function(val) {
return Number(val); return Number(val);