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Faster long for small values

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This commit is contained in:
Alexey Andreev 2015-03-13 12:52:57 +04:00
parent cc009ff9bd
commit 0572123c0e
1 changed files with 12 additions and 0 deletions
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12
teavm-core/src/main/resources/org/teavm/javascript/runtime.js
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@ -605,6 +605,9 @@ function Long_toNumber(val) {
return 0x100000000 * hi + lo;
}
function Long_add(a, b) {
if (a.hi === a.lo >> 31 && b.hi === b.lo >> 31) {
return Long_fromNumber(a.lo + b.lo);
}
var a_lolo = a.lo & 0xFFFF;
var a_lohi = a.lo >>> 16;
var a_hilo = a.hi & 0xFFFF;
@ -640,6 +643,9 @@ function Long_neg(a) {
return Long_inc(new Long(a.lo ^ 0xFFFFFFFF, a.hi ^ 0xFFFFFFFF));
}
function Long_sub(a, b) {
if (a.hi === 0 && a.lo >> 31 && b.hi === b.lo >> 31) {
return Long_fromNumber(a.lo - b.lo);
}
var a_lolo = a.lo & 0xFFFF;
var a_lohi = a.lo >>> 16;
var a_hilo = a.hi & 0xFFFF;
@ -711,9 +717,15 @@ function Long_mul(a, b) {
return positive ? result : Long_neg(result);
}
function Long_div(a, b) {
if (a.hi === 0 && b.hi === 0) {
return Long_fromNumber(Long_toNumber(a) / Long_toNumber(b));
}
return Long_divRem(a, b)[0];
}
function Long_rem(a, b) {
if (a.hi === 0 && b.hi === 0) {
return Long_fromNumber(Long_toNumber(a) % Long_toNumber(b));
}
return Long_divRem(a, b)[1];
}
function Long_divRem(a, b) {