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libbpg/emscripten.diff
King_DuckZ 1261ac523b libbpg-0.9.7
2016-09-07 00:56:20 +02:00

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diff --git a/src/fastLong.js b/src/fastLong.js
index 2b70b2f..977c7ec 100644
--- a/src/fastLong.js
+++ b/src/fastLong.js
@@ -12,47 +12,6 @@ function ___muldsi3($a, $b) {
$12 = Math_imul($11, $1) | 0;
return (tempRet0 = (($8 >>> 16) + (Math_imul($11, $6) | 0) | 0) + ((($8 & 65535) + $12 | 0) >>> 16) | 0, 0 | ($8 + $12 << 16 | $3 & 65535)) | 0;
}
-function ___divdi3($a$0, $a$1, $b$0, $b$1) {
- $a$0 = $a$0 | 0;
- $a$1 = $a$1 | 0;
- $b$0 = $b$0 | 0;
- $b$1 = $b$1 | 0;
- var $1$0 = 0, $1$1 = 0, $2$0 = 0, $2$1 = 0, $4$0 = 0, $4$1 = 0, $6$0 = 0, $7$0 = 0, $7$1 = 0, $8$0 = 0, $10$0 = 0;
- $1$0 = $a$1 >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
- $1$1 = (($a$1 | 0) < 0 ? -1 : 0) >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
- $2$0 = $b$1 >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
- $2$1 = (($b$1 | 0) < 0 ? -1 : 0) >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
- $4$0 = _i64Subtract($1$0 ^ $a$0, $1$1 ^ $a$1, $1$0, $1$1) | 0;
- $4$1 = tempRet0;
- $6$0 = _i64Subtract($2$0 ^ $b$0, $2$1 ^ $b$1, $2$0, $2$1) | 0;
- $7$0 = $2$0 ^ $1$0;
- $7$1 = $2$1 ^ $1$1;
- $8$0 = ___udivmoddi4($4$0, $4$1, $6$0, tempRet0, 0) | 0;
- $10$0 = _i64Subtract($8$0 ^ $7$0, tempRet0 ^ $7$1, $7$0, $7$1) | 0;
- return (tempRet0 = tempRet0, $10$0) | 0;
-}
-function ___remdi3($a$0, $a$1, $b$0, $b$1) {
- $a$0 = $a$0 | 0;
- $a$1 = $a$1 | 0;
- $b$0 = $b$0 | 0;
- $b$1 = $b$1 | 0;
- var $rem = 0, $1$0 = 0, $1$1 = 0, $2$0 = 0, $2$1 = 0, $4$0 = 0, $4$1 = 0, $6$0 = 0, $10$0 = 0, $10$1 = 0, __stackBase__ = 0;
- __stackBase__ = STACKTOP;
- STACKTOP = STACKTOP + 8 | 0;
- $rem = __stackBase__ | 0;
- $1$0 = $a$1 >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
- $1$1 = (($a$1 | 0) < 0 ? -1 : 0) >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
- $2$0 = $b$1 >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
- $2$1 = (($b$1 | 0) < 0 ? -1 : 0) >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
- $4$0 = _i64Subtract($1$0 ^ $a$0, $1$1 ^ $a$1, $1$0, $1$1) | 0;
- $4$1 = tempRet0;
- $6$0 = _i64Subtract($2$0 ^ $b$0, $2$1 ^ $b$1, $2$0, $2$1) | 0;
- ___udivmoddi4($4$0, $4$1, $6$0, tempRet0, $rem) | 0;
- $10$0 = _i64Subtract(HEAP32[$rem >> 2] ^ $1$0, HEAP32[$rem + 4 >> 2] ^ $1$1, $1$0, $1$1) | 0;
- $10$1 = tempRet0;
- STACKTOP = __stackBase__;
- return (tempRet0 = $10$1, $10$0) | 0;
-}
function ___muldi3($a$0, $a$1, $b$0, $b$1) {
$a$0 = $a$0 | 0;
$a$1 = $a$1 | 0;
@@ -66,234 +25,5 @@ function ___muldi3($a$0, $a$1, $b$0, $b$1) {
$2 = Math_imul($a$1, $y_sroa_0_0_extract_trunc) | 0;
return (tempRet0 = ((Math_imul($b$1, $x_sroa_0_0_extract_trunc) | 0) + $2 | 0) + $1$1 | $1$1 & 0, 0 | $1$0 & -1) | 0;
}
-function ___udivdi3($a$0, $a$1, $b$0, $b$1) {
- $a$0 = $a$0 | 0;
- $a$1 = $a$1 | 0;
- $b$0 = $b$0 | 0;
- $b$1 = $b$1 | 0;
- var $1$0 = 0;
- $1$0 = ___udivmoddi4($a$0, $a$1, $b$0, $b$1, 0) | 0;
- return (tempRet0 = tempRet0, $1$0) | 0;
-}
-function ___uremdi3($a$0, $a$1, $b$0, $b$1) {
- $a$0 = $a$0 | 0;
- $a$1 = $a$1 | 0;
- $b$0 = $b$0 | 0;
- $b$1 = $b$1 | 0;
- var $rem = 0, __stackBase__ = 0;
- __stackBase__ = STACKTOP;
- STACKTOP = STACKTOP + 8 | 0;
- $rem = __stackBase__ | 0;
- ___udivmoddi4($a$0, $a$1, $b$0, $b$1, $rem) | 0;
- STACKTOP = __stackBase__;
- return (tempRet0 = HEAP32[$rem + 4 >> 2] | 0, HEAP32[$rem >> 2] | 0) | 0;
-}
-function ___udivmoddi4($a$0, $a$1, $b$0, $b$1, $rem) {
- $a$0 = $a$0 | 0;
- $a$1 = $a$1 | 0;
- $b$0 = $b$0 | 0;
- $b$1 = $b$1 | 0;
- $rem = $rem | 0;
- var $n_sroa_0_0_extract_trunc = 0, $n_sroa_1_4_extract_shift$0 = 0, $n_sroa_1_4_extract_trunc = 0, $d_sroa_0_0_extract_trunc = 0, $d_sroa_1_4_extract_shift$0 = 0, $d_sroa_1_4_extract_trunc = 0, $4 = 0, $17 = 0, $37 = 0, $49 = 0, $51 = 0, $57 = 0, $58 = 0, $66 = 0, $78 = 0, $86 = 0, $88 = 0, $89 = 0, $91 = 0, $92 = 0, $95 = 0, $105 = 0, $117 = 0, $119 = 0, $125 = 0, $126 = 0, $130 = 0, $q_sroa_1_1_ph = 0, $q_sroa_0_1_ph = 0, $r_sroa_1_1_ph = 0, $r_sroa_0_1_ph = 0, $sr_1_ph = 0, $d_sroa_0_0_insert_insert99$0 = 0, $d_sroa_0_0_insert_insert99$1 = 0, $137$0 = 0, $137$1 = 0, $carry_0203 = 0, $sr_1202 = 0, $r_sroa_0_1201 = 0, $r_sroa_1_1200 = 0, $q_sroa_0_1199 = 0, $q_sroa_1_1198 = 0, $147 = 0, $149 = 0, $r_sroa_0_0_insert_insert42$0 = 0, $r_sroa_0_0_insert_insert42$1 = 0, $150$1 = 0, $151$0 = 0, $152 = 0, $154$0 = 0, $r_sroa_0_0_extract_trunc = 0, $r_sroa_1_4_extract_trunc = 0, $155 = 0, $carry_0_lcssa$0 = 0, $carry_0_lcssa$1 = 0, $r_sroa_0_1_lcssa = 0, $r_sroa_1_1_lcssa = 0, $q_sroa_0_1_lcssa = 0, $q_sroa_1_1_lcssa = 0, $q_sroa_0_0_insert_ext75$0 = 0, $q_sroa_0_0_insert_ext75$1 = 0, $q_sroa_0_0_insert_insert77$1 = 0, $_0$0 = 0, $_0$1 = 0;
- $n_sroa_0_0_extract_trunc = $a$0;
- $n_sroa_1_4_extract_shift$0 = $a$1;
- $n_sroa_1_4_extract_trunc = $n_sroa_1_4_extract_shift$0;
- $d_sroa_0_0_extract_trunc = $b$0;
- $d_sroa_1_4_extract_shift$0 = $b$1;
- $d_sroa_1_4_extract_trunc = $d_sroa_1_4_extract_shift$0;
- if (($n_sroa_1_4_extract_trunc | 0) == 0) {
- $4 = ($rem | 0) != 0;
- if (($d_sroa_1_4_extract_trunc | 0) == 0) {
- if ($4) {
- HEAP32[$rem >> 2] = ($n_sroa_0_0_extract_trunc >>> 0) % ($d_sroa_0_0_extract_trunc >>> 0);
- HEAP32[$rem + 4 >> 2] = 0;
- }
- $_0$1 = 0;
- $_0$0 = ($n_sroa_0_0_extract_trunc >>> 0) / ($d_sroa_0_0_extract_trunc >>> 0) >>> 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- } else {
- if (!$4) {
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- HEAP32[$rem >> 2] = $a$0 & -1;
- HEAP32[$rem + 4 >> 2] = $a$1 & 0;
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- }
- $17 = ($d_sroa_1_4_extract_trunc | 0) == 0;
- do {
- if (($d_sroa_0_0_extract_trunc | 0) == 0) {
- if ($17) {
- if (($rem | 0) != 0) {
- HEAP32[$rem >> 2] = ($n_sroa_1_4_extract_trunc >>> 0) % ($d_sroa_0_0_extract_trunc >>> 0);
- HEAP32[$rem + 4 >> 2] = 0;
- }
- $_0$1 = 0;
- $_0$0 = ($n_sroa_1_4_extract_trunc >>> 0) / ($d_sroa_0_0_extract_trunc >>> 0) >>> 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- if (($n_sroa_0_0_extract_trunc | 0) == 0) {
- if (($rem | 0) != 0) {
- HEAP32[$rem >> 2] = 0;
- HEAP32[$rem + 4 >> 2] = ($n_sroa_1_4_extract_trunc >>> 0) % ($d_sroa_1_4_extract_trunc >>> 0);
- }
- $_0$1 = 0;
- $_0$0 = ($n_sroa_1_4_extract_trunc >>> 0) / ($d_sroa_1_4_extract_trunc >>> 0) >>> 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- $37 = $d_sroa_1_4_extract_trunc - 1 | 0;
- if (($37 & $d_sroa_1_4_extract_trunc | 0) == 0) {
- if (($rem | 0) != 0) {
- HEAP32[$rem >> 2] = 0 | $a$0 & -1;
- HEAP32[$rem + 4 >> 2] = $37 & $n_sroa_1_4_extract_trunc | $a$1 & 0;
- }
- $_0$1 = 0;
- $_0$0 = $n_sroa_1_4_extract_trunc >>> ((_llvm_cttz_i32($d_sroa_1_4_extract_trunc | 0) | 0) >>> 0);
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- $49 = _llvm_ctlz_i32($d_sroa_1_4_extract_trunc | 0) | 0;
- $51 = $49 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
- if ($51 >>> 0 <= 30) {
- $57 = $51 + 1 | 0;
- $58 = 31 - $51 | 0;
- $sr_1_ph = $57;
- $r_sroa_0_1_ph = $n_sroa_1_4_extract_trunc << $58 | $n_sroa_0_0_extract_trunc >>> ($57 >>> 0);
- $r_sroa_1_1_ph = $n_sroa_1_4_extract_trunc >>> ($57 >>> 0);
- $q_sroa_0_1_ph = 0;
- $q_sroa_1_1_ph = $n_sroa_0_0_extract_trunc << $58;
- break;
- }
- if (($rem | 0) == 0) {
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- HEAP32[$rem >> 2] = 0 | $a$0 & -1;
- HEAP32[$rem + 4 >> 2] = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- } else {
- if (!$17) {
- $117 = _llvm_ctlz_i32($d_sroa_1_4_extract_trunc | 0) | 0;
- $119 = $117 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
- if ($119 >>> 0 <= 31) {
- $125 = $119 + 1 | 0;
- $126 = 31 - $119 | 0;
- $130 = $119 - 31 >> 31;
- $sr_1_ph = $125;
- $r_sroa_0_1_ph = $n_sroa_0_0_extract_trunc >>> ($125 >>> 0) & $130 | $n_sroa_1_4_extract_trunc << $126;
- $r_sroa_1_1_ph = $n_sroa_1_4_extract_trunc >>> ($125 >>> 0) & $130;
- $q_sroa_0_1_ph = 0;
- $q_sroa_1_1_ph = $n_sroa_0_0_extract_trunc << $126;
- break;
- }
- if (($rem | 0) == 0) {
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- HEAP32[$rem >> 2] = 0 | $a$0 & -1;
- HEAP32[$rem + 4 >> 2] = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
- $_0$1 = 0;
- $_0$0 = 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- $66 = $d_sroa_0_0_extract_trunc - 1 | 0;
- if (($66 & $d_sroa_0_0_extract_trunc | 0) != 0) {
- $86 = (_llvm_ctlz_i32($d_sroa_0_0_extract_trunc | 0) | 0) + 33 | 0;
- $88 = $86 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
- $89 = 64 - $88 | 0;
- $91 = 32 - $88 | 0;
- $92 = $91 >> 31;
- $95 = $88 - 32 | 0;
- $105 = $95 >> 31;
- $sr_1_ph = $88;
- $r_sroa_0_1_ph = $91 - 1 >> 31 & $n_sroa_1_4_extract_trunc >>> ($95 >>> 0) | ($n_sroa_1_4_extract_trunc << $91 | $n_sroa_0_0_extract_trunc >>> ($88 >>> 0)) & $105;
- $r_sroa_1_1_ph = $105 & $n_sroa_1_4_extract_trunc >>> ($88 >>> 0);
- $q_sroa_0_1_ph = $n_sroa_0_0_extract_trunc << $89 & $92;
- $q_sroa_1_1_ph = ($n_sroa_1_4_extract_trunc << $89 | $n_sroa_0_0_extract_trunc >>> ($95 >>> 0)) & $92 | $n_sroa_0_0_extract_trunc << $91 & $88 - 33 >> 31;
- break;
- }
- if (($rem | 0) != 0) {
- HEAP32[$rem >> 2] = $66 & $n_sroa_0_0_extract_trunc;
- HEAP32[$rem + 4 >> 2] = 0;
- }
- if (($d_sroa_0_0_extract_trunc | 0) == 1) {
- $_0$1 = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
- $_0$0 = 0 | $a$0 & -1;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- } else {
- $78 = _llvm_cttz_i32($d_sroa_0_0_extract_trunc | 0) | 0;
- $_0$1 = 0 | $n_sroa_1_4_extract_trunc >>> ($78 >>> 0);
- $_0$0 = $n_sroa_1_4_extract_trunc << 32 - $78 | $n_sroa_0_0_extract_trunc >>> ($78 >>> 0) | 0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
- }
- }
- } while (0);
- if (($sr_1_ph | 0) == 0) {
- $q_sroa_1_1_lcssa = $q_sroa_1_1_ph;
- $q_sroa_0_1_lcssa = $q_sroa_0_1_ph;
- $r_sroa_1_1_lcssa = $r_sroa_1_1_ph;
- $r_sroa_0_1_lcssa = $r_sroa_0_1_ph;
- $carry_0_lcssa$1 = 0;
- $carry_0_lcssa$0 = 0;
- } else {
- $d_sroa_0_0_insert_insert99$0 = 0 | $b$0 & -1;
- $d_sroa_0_0_insert_insert99$1 = $d_sroa_1_4_extract_shift$0 | $b$1 & 0;
- $137$0 = _i64Add($d_sroa_0_0_insert_insert99$0, $d_sroa_0_0_insert_insert99$1, -1, -1) | 0;
- $137$1 = tempRet0;
- $q_sroa_1_1198 = $q_sroa_1_1_ph;
- $q_sroa_0_1199 = $q_sroa_0_1_ph;
- $r_sroa_1_1200 = $r_sroa_1_1_ph;
- $r_sroa_0_1201 = $r_sroa_0_1_ph;
- $sr_1202 = $sr_1_ph;
- $carry_0203 = 0;
- while (1) {
- $147 = $q_sroa_0_1199 >>> 31 | $q_sroa_1_1198 << 1;
- $149 = $carry_0203 | $q_sroa_0_1199 << 1;
- $r_sroa_0_0_insert_insert42$0 = 0 | ($r_sroa_0_1201 << 1 | $q_sroa_1_1198 >>> 31);
- $r_sroa_0_0_insert_insert42$1 = $r_sroa_0_1201 >>> 31 | $r_sroa_1_1200 << 1 | 0;
- _i64Subtract($137$0, $137$1, $r_sroa_0_0_insert_insert42$0, $r_sroa_0_0_insert_insert42$1) | 0;
- $150$1 = tempRet0;
- $151$0 = $150$1 >> 31 | (($150$1 | 0) < 0 ? -1 : 0) << 1;
- $152 = $151$0 & 1;
- $154$0 = _i64Subtract($r_sroa_0_0_insert_insert42$0, $r_sroa_0_0_insert_insert42$1, $151$0 & $d_sroa_0_0_insert_insert99$0, ((($150$1 | 0) < 0 ? -1 : 0) >> 31 | (($150$1 | 0) < 0 ? -1 : 0) << 1) & $d_sroa_0_0_insert_insert99$1) | 0;
- $r_sroa_0_0_extract_trunc = $154$0;
- $r_sroa_1_4_extract_trunc = tempRet0;
- $155 = $sr_1202 - 1 | 0;
- if (($155 | 0) == 0) {
- break;
- } else {
- $q_sroa_1_1198 = $147;
- $q_sroa_0_1199 = $149;
- $r_sroa_1_1200 = $r_sroa_1_4_extract_trunc;
- $r_sroa_0_1201 = $r_sroa_0_0_extract_trunc;
- $sr_1202 = $155;
- $carry_0203 = $152;
- }
- }
- $q_sroa_1_1_lcssa = $147;
- $q_sroa_0_1_lcssa = $149;
- $r_sroa_1_1_lcssa = $r_sroa_1_4_extract_trunc;
- $r_sroa_0_1_lcssa = $r_sroa_0_0_extract_trunc;
- $carry_0_lcssa$1 = 0;
- $carry_0_lcssa$0 = $152;
- }
- $q_sroa_0_0_insert_ext75$0 = $q_sroa_0_1_lcssa;
- $q_sroa_0_0_insert_ext75$1 = 0;
- $q_sroa_0_0_insert_insert77$1 = $q_sroa_1_1_lcssa | $q_sroa_0_0_insert_ext75$1;
- if (($rem | 0) != 0) {
- HEAP32[$rem >> 2] = 0 | $r_sroa_0_1_lcssa;
- HEAP32[$rem + 4 >> 2] = $r_sroa_1_1_lcssa | 0;
- }
- $_0$1 = (0 | $q_sroa_0_0_insert_ext75$0) >>> 31 | $q_sroa_0_0_insert_insert77$1 << 1 | ($q_sroa_0_0_insert_ext75$1 << 1 | $q_sroa_0_0_insert_ext75$0 >>> 31) & 0 | $carry_0_lcssa$1;
- $_0$0 = ($q_sroa_0_0_insert_ext75$0 << 1 | 0 >>> 31) & -2 | $carry_0_lcssa$0;
- return (tempRet0 = $_0$1, $_0$0) | 0;
-}
// =======================================================================
diff --git a/src/jsifier.js b/src/jsifier.js
index a717b79..51bab6f 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -1883,8 +1883,14 @@ function JSify(data, functionsOnly) {
}
// these may be duplicated in side modules and the main module without issue
print(read('fastLong.js'));
+ if (!USE_BPG_STRIP)
+ print(read('fastLongDiv.js'));
print('// EMSCRIPTEN_END_FUNCS\n');
- print(read('long.js'));
+ if (PRECISE_I64_MATH == 2) {
+ print('var i64Math = null;');
+ } else {
+ print(read('long.js'));
+ }
} else {
print('// EMSCRIPTEN_END_FUNCS\n');
print('// Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included');
diff --git a/src/postamble.js b/src/postamble.js
index bac17ab..06800ee 100644
--- a/src/postamble.js
+++ b/src/postamble.js
@@ -52,6 +52,7 @@ dependenciesFulfilled = function runCaller() {
if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
}
+#if !USE_BPG_STRIP
Module['callMain'] = Module.callMain = function callMain(args) {
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
@@ -108,6 +109,7 @@ Module['callMain'] = Module.callMain = function callMain(args) {
calledMain = true;
}
}
+#endif
{{GLOBAL_VARS}}
@@ -142,9 +144,11 @@ function run(args) {
Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) + ' ms');
}
+#if !USE_BPG_STRIP
if (Module['_main'] && shouldRunNow) {
Module['callMain'](args);
}
+#endif
postRun();
}
diff --git a/src/preamble.js b/src/preamble.js
index a1bc48e..9a2e36b 100644
--- a/src/preamble.js
+++ b/src/preamble.js
@@ -633,6 +633,8 @@ function allocate(slab, types, allocator, ptr) {
}
Module['allocate'] = allocate;
+#if !USE_BPG_STRIP
+
function Pointer_stringify(ptr, /* optional */ length) {
if (length === 0) return '';
// TODO: use TextDecoder
@@ -924,6 +926,11 @@ function demangle(func) {
function demangleAll(text) {
return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });
}
+#else
+function demangleAll(text) {
+ return text;
+}
+#endif
function jsStackTrace() {
var err = new Error();
diff --git a/src/settings.js b/src/settings.js
index eb34d2d..49a0a11 100644
--- a/src/settings.js
+++ b/src/settings.js
@@ -594,6 +594,8 @@ var USE_SDL = 1; // Specify the SDL version that is being linked against.
// 2 is a port of the SDL C code on emscripten-ports
var USE_SDL_IMAGE = 1; // Specify the SDL_image version that is being linked against. Must match USE_SDL
+// strip unused code by BPG
+var USE_BPG_STRIP = 1;
// Compiler debugging options
var DEBUG_TAGS_SHOWING = [];
diff --git a/src/fastLongDiv.js b/src/fastLongDiv.js
new file mode 100644
index 0000000..d1e5b49
--- /dev/null
+++ b/src/fastLongDiv.js
@@ -0,0 +1,273 @@
+// ======== compiled code from system/lib/compiler-rt , see readme therein
+function ___divdi3($a$0, $a$1, $b$0, $b$1) {
+ $a$0 = $a$0 | 0;
+ $a$1 = $a$1 | 0;
+ $b$0 = $b$0 | 0;
+ $b$1 = $b$1 | 0;
+ var $1$0 = 0, $1$1 = 0, $2$0 = 0, $2$1 = 0, $4$0 = 0, $4$1 = 0, $6$0 = 0, $7$0 = 0, $7$1 = 0, $8$0 = 0, $10$0 = 0;
+ $1$0 = $a$1 >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
+ $1$1 = (($a$1 | 0) < 0 ? -1 : 0) >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
+ $2$0 = $b$1 >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
+ $2$1 = (($b$1 | 0) < 0 ? -1 : 0) >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
+ $4$0 = _i64Subtract($1$0 ^ $a$0, $1$1 ^ $a$1, $1$0, $1$1) | 0;
+ $4$1 = tempRet0;
+ $6$0 = _i64Subtract($2$0 ^ $b$0, $2$1 ^ $b$1, $2$0, $2$1) | 0;
+ $7$0 = $2$0 ^ $1$0;
+ $7$1 = $2$1 ^ $1$1;
+ $8$0 = ___udivmoddi4($4$0, $4$1, $6$0, tempRet0, 0) | 0;
+ $10$0 = _i64Subtract($8$0 ^ $7$0, tempRet0 ^ $7$1, $7$0, $7$1) | 0;
+ return (tempRet0 = tempRet0, $10$0) | 0;
+}
+function ___remdi3($a$0, $a$1, $b$0, $b$1) {
+ $a$0 = $a$0 | 0;
+ $a$1 = $a$1 | 0;
+ $b$0 = $b$0 | 0;
+ $b$1 = $b$1 | 0;
+ var $rem = 0, $1$0 = 0, $1$1 = 0, $2$0 = 0, $2$1 = 0, $4$0 = 0, $4$1 = 0, $6$0 = 0, $10$0 = 0, $10$1 = 0, __stackBase__ = 0;
+ __stackBase__ = STACKTOP;
+ STACKTOP = STACKTOP + 8 | 0;
+ $rem = __stackBase__ | 0;
+ $1$0 = $a$1 >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
+ $1$1 = (($a$1 | 0) < 0 ? -1 : 0) >> 31 | (($a$1 | 0) < 0 ? -1 : 0) << 1;
+ $2$0 = $b$1 >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
+ $2$1 = (($b$1 | 0) < 0 ? -1 : 0) >> 31 | (($b$1 | 0) < 0 ? -1 : 0) << 1;
+ $4$0 = _i64Subtract($1$0 ^ $a$0, $1$1 ^ $a$1, $1$0, $1$1) | 0;
+ $4$1 = tempRet0;
+ $6$0 = _i64Subtract($2$0 ^ $b$0, $2$1 ^ $b$1, $2$0, $2$1) | 0;
+ ___udivmoddi4($4$0, $4$1, $6$0, tempRet0, $rem) | 0;
+ $10$0 = _i64Subtract(HEAP32[$rem >> 2] ^ $1$0, HEAP32[$rem + 4 >> 2] ^ $1$1, $1$0, $1$1) | 0;
+ $10$1 = tempRet0;
+ STACKTOP = __stackBase__;
+ return (tempRet0 = $10$1, $10$0) | 0;
+}
+function ___udivdi3($a$0, $a$1, $b$0, $b$1) {
+ $a$0 = $a$0 | 0;
+ $a$1 = $a$1 | 0;
+ $b$0 = $b$0 | 0;
+ $b$1 = $b$1 | 0;
+ var $1$0 = 0;
+ $1$0 = ___udivmoddi4($a$0, $a$1, $b$0, $b$1, 0) | 0;
+ return (tempRet0 = tempRet0, $1$0) | 0;
+}
+function ___uremdi3($a$0, $a$1, $b$0, $b$1) {
+ $a$0 = $a$0 | 0;
+ $a$1 = $a$1 | 0;
+ $b$0 = $b$0 | 0;
+ $b$1 = $b$1 | 0;
+ var $rem = 0, __stackBase__ = 0;
+ __stackBase__ = STACKTOP;
+ STACKTOP = STACKTOP + 8 | 0;
+ $rem = __stackBase__ | 0;
+ ___udivmoddi4($a$0, $a$1, $b$0, $b$1, $rem) | 0;
+ STACKTOP = __stackBase__;
+ return (tempRet0 = HEAP32[$rem + 4 >> 2] | 0, HEAP32[$rem >> 2] | 0) | 0;
+}
+function ___udivmoddi4($a$0, $a$1, $b$0, $b$1, $rem) {
+ $a$0 = $a$0 | 0;
+ $a$1 = $a$1 | 0;
+ $b$0 = $b$0 | 0;
+ $b$1 = $b$1 | 0;
+ $rem = $rem | 0;
+ var $n_sroa_0_0_extract_trunc = 0, $n_sroa_1_4_extract_shift$0 = 0, $n_sroa_1_4_extract_trunc = 0, $d_sroa_0_0_extract_trunc = 0, $d_sroa_1_4_extract_shift$0 = 0, $d_sroa_1_4_extract_trunc = 0, $4 = 0, $17 = 0, $37 = 0, $49 = 0, $51 = 0, $57 = 0, $58 = 0, $66 = 0, $78 = 0, $86 = 0, $88 = 0, $89 = 0, $91 = 0, $92 = 0, $95 = 0, $105 = 0, $117 = 0, $119 = 0, $125 = 0, $126 = 0, $130 = 0, $q_sroa_1_1_ph = 0, $q_sroa_0_1_ph = 0, $r_sroa_1_1_ph = 0, $r_sroa_0_1_ph = 0, $sr_1_ph = 0, $d_sroa_0_0_insert_insert99$0 = 0, $d_sroa_0_0_insert_insert99$1 = 0, $137$0 = 0, $137$1 = 0, $carry_0203 = 0, $sr_1202 = 0, $r_sroa_0_1201 = 0, $r_sroa_1_1200 = 0, $q_sroa_0_1199 = 0, $q_sroa_1_1198 = 0, $147 = 0, $149 = 0, $r_sroa_0_0_insert_insert42$0 = 0, $r_sroa_0_0_insert_insert42$1 = 0, $150$1 = 0, $151$0 = 0, $152 = 0, $154$0 = 0, $r_sroa_0_0_extract_trunc = 0, $r_sroa_1_4_extract_trunc = 0, $155 = 0, $carry_0_lcssa$0 = 0, $carry_0_lcssa$1 = 0, $r_sroa_0_1_lcssa = 0, $r_sroa_1_1_lcssa = 0, $q_sroa_0_1_lcssa = 0, $q_sroa_1_1_lcssa = 0, $q_sroa_0_0_insert_ext75$0 = 0, $q_sroa_0_0_insert_ext75$1 = 0, $q_sroa_0_0_insert_insert77$1 = 0, $_0$0 = 0, $_0$1 = 0;
+ $n_sroa_0_0_extract_trunc = $a$0;
+ $n_sroa_1_4_extract_shift$0 = $a$1;
+ $n_sroa_1_4_extract_trunc = $n_sroa_1_4_extract_shift$0;
+ $d_sroa_0_0_extract_trunc = $b$0;
+ $d_sroa_1_4_extract_shift$0 = $b$1;
+ $d_sroa_1_4_extract_trunc = $d_sroa_1_4_extract_shift$0;
+ if (($n_sroa_1_4_extract_trunc | 0) == 0) {
+ $4 = ($rem | 0) != 0;
+ if (($d_sroa_1_4_extract_trunc | 0) == 0) {
+ if ($4) {
+ HEAP32[$rem >> 2] = ($n_sroa_0_0_extract_trunc >>> 0) % ($d_sroa_0_0_extract_trunc >>> 0);
+ HEAP32[$rem + 4 >> 2] = 0;
+ }
+ $_0$1 = 0;
+ $_0$0 = ($n_sroa_0_0_extract_trunc >>> 0) / ($d_sroa_0_0_extract_trunc >>> 0) >>> 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ } else {
+ if (!$4) {
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ HEAP32[$rem >> 2] = $a$0 & -1;
+ HEAP32[$rem + 4 >> 2] = $a$1 & 0;
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ }
+ $17 = ($d_sroa_1_4_extract_trunc | 0) == 0;
+ do {
+ if (($d_sroa_0_0_extract_trunc | 0) == 0) {
+ if ($17) {
+ if (($rem | 0) != 0) {
+ HEAP32[$rem >> 2] = ($n_sroa_1_4_extract_trunc >>> 0) % ($d_sroa_0_0_extract_trunc >>> 0);
+ HEAP32[$rem + 4 >> 2] = 0;
+ }
+ $_0$1 = 0;
+ $_0$0 = ($n_sroa_1_4_extract_trunc >>> 0) / ($d_sroa_0_0_extract_trunc >>> 0) >>> 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ if (($n_sroa_0_0_extract_trunc | 0) == 0) {
+ if (($rem | 0) != 0) {
+ HEAP32[$rem >> 2] = 0;
+ HEAP32[$rem + 4 >> 2] = ($n_sroa_1_4_extract_trunc >>> 0) % ($d_sroa_1_4_extract_trunc >>> 0);
+ }
+ $_0$1 = 0;
+ $_0$0 = ($n_sroa_1_4_extract_trunc >>> 0) / ($d_sroa_1_4_extract_trunc >>> 0) >>> 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ $37 = $d_sroa_1_4_extract_trunc - 1 | 0;
+ if (($37 & $d_sroa_1_4_extract_trunc | 0) == 0) {
+ if (($rem | 0) != 0) {
+ HEAP32[$rem >> 2] = 0 | $a$0 & -1;
+ HEAP32[$rem + 4 >> 2] = $37 & $n_sroa_1_4_extract_trunc | $a$1 & 0;
+ }
+ $_0$1 = 0;
+ $_0$0 = $n_sroa_1_4_extract_trunc >>> ((_llvm_cttz_i32($d_sroa_1_4_extract_trunc | 0) | 0) >>> 0);
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ $49 = _llvm_ctlz_i32($d_sroa_1_4_extract_trunc | 0) | 0;
+ $51 = $49 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
+ if ($51 >>> 0 <= 30) {
+ $57 = $51 + 1 | 0;
+ $58 = 31 - $51 | 0;
+ $sr_1_ph = $57;
+ $r_sroa_0_1_ph = $n_sroa_1_4_extract_trunc << $58 | $n_sroa_0_0_extract_trunc >>> ($57 >>> 0);
+ $r_sroa_1_1_ph = $n_sroa_1_4_extract_trunc >>> ($57 >>> 0);
+ $q_sroa_0_1_ph = 0;
+ $q_sroa_1_1_ph = $n_sroa_0_0_extract_trunc << $58;
+ break;
+ }
+ if (($rem | 0) == 0) {
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ HEAP32[$rem >> 2] = 0 | $a$0 & -1;
+ HEAP32[$rem + 4 >> 2] = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ } else {
+ if (!$17) {
+ $117 = _llvm_ctlz_i32($d_sroa_1_4_extract_trunc | 0) | 0;
+ $119 = $117 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
+ if ($119 >>> 0 <= 31) {
+ $125 = $119 + 1 | 0;
+ $126 = 31 - $119 | 0;
+ $130 = $119 - 31 >> 31;
+ $sr_1_ph = $125;
+ $r_sroa_0_1_ph = $n_sroa_0_0_extract_trunc >>> ($125 >>> 0) & $130 | $n_sroa_1_4_extract_trunc << $126;
+ $r_sroa_1_1_ph = $n_sroa_1_4_extract_trunc >>> ($125 >>> 0) & $130;
+ $q_sroa_0_1_ph = 0;
+ $q_sroa_1_1_ph = $n_sroa_0_0_extract_trunc << $126;
+ break;
+ }
+ if (($rem | 0) == 0) {
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ HEAP32[$rem >> 2] = 0 | $a$0 & -1;
+ HEAP32[$rem + 4 >> 2] = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
+ $_0$1 = 0;
+ $_0$0 = 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ $66 = $d_sroa_0_0_extract_trunc - 1 | 0;
+ if (($66 & $d_sroa_0_0_extract_trunc | 0) != 0) {
+ $86 = (_llvm_ctlz_i32($d_sroa_0_0_extract_trunc | 0) | 0) + 33 | 0;
+ $88 = $86 - (_llvm_ctlz_i32($n_sroa_1_4_extract_trunc | 0) | 0) | 0;
+ $89 = 64 - $88 | 0;
+ $91 = 32 - $88 | 0;
+ $92 = $91 >> 31;
+ $95 = $88 - 32 | 0;
+ $105 = $95 >> 31;
+ $sr_1_ph = $88;
+ $r_sroa_0_1_ph = $91 - 1 >> 31 & $n_sroa_1_4_extract_trunc >>> ($95 >>> 0) | ($n_sroa_1_4_extract_trunc << $91 | $n_sroa_0_0_extract_trunc >>> ($88 >>> 0)) & $105;
+ $r_sroa_1_1_ph = $105 & $n_sroa_1_4_extract_trunc >>> ($88 >>> 0);
+ $q_sroa_0_1_ph = $n_sroa_0_0_extract_trunc << $89 & $92;
+ $q_sroa_1_1_ph = ($n_sroa_1_4_extract_trunc << $89 | $n_sroa_0_0_extract_trunc >>> ($95 >>> 0)) & $92 | $n_sroa_0_0_extract_trunc << $91 & $88 - 33 >> 31;
+ break;
+ }
+ if (($rem | 0) != 0) {
+ HEAP32[$rem >> 2] = $66 & $n_sroa_0_0_extract_trunc;
+ HEAP32[$rem + 4 >> 2] = 0;
+ }
+ if (($d_sroa_0_0_extract_trunc | 0) == 1) {
+ $_0$1 = $n_sroa_1_4_extract_shift$0 | $a$1 & 0;
+ $_0$0 = 0 | $a$0 & -1;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ } else {
+ $78 = _llvm_cttz_i32($d_sroa_0_0_extract_trunc | 0) | 0;
+ $_0$1 = 0 | $n_sroa_1_4_extract_trunc >>> ($78 >>> 0);
+ $_0$0 = $n_sroa_1_4_extract_trunc << 32 - $78 | $n_sroa_0_0_extract_trunc >>> ($78 >>> 0) | 0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+ }
+ }
+ } while (0);
+ if (($sr_1_ph | 0) == 0) {
+ $q_sroa_1_1_lcssa = $q_sroa_1_1_ph;
+ $q_sroa_0_1_lcssa = $q_sroa_0_1_ph;
+ $r_sroa_1_1_lcssa = $r_sroa_1_1_ph;
+ $r_sroa_0_1_lcssa = $r_sroa_0_1_ph;
+ $carry_0_lcssa$1 = 0;
+ $carry_0_lcssa$0 = 0;
+ } else {
+ $d_sroa_0_0_insert_insert99$0 = 0 | $b$0 & -1;
+ $d_sroa_0_0_insert_insert99$1 = $d_sroa_1_4_extract_shift$0 | $b$1 & 0;
+ $137$0 = _i64Add($d_sroa_0_0_insert_insert99$0, $d_sroa_0_0_insert_insert99$1, -1, -1) | 0;
+ $137$1 = tempRet0;
+ $q_sroa_1_1198 = $q_sroa_1_1_ph;
+ $q_sroa_0_1199 = $q_sroa_0_1_ph;
+ $r_sroa_1_1200 = $r_sroa_1_1_ph;
+ $r_sroa_0_1201 = $r_sroa_0_1_ph;
+ $sr_1202 = $sr_1_ph;
+ $carry_0203 = 0;
+ while (1) {
+ $147 = $q_sroa_0_1199 >>> 31 | $q_sroa_1_1198 << 1;
+ $149 = $carry_0203 | $q_sroa_0_1199 << 1;
+ $r_sroa_0_0_insert_insert42$0 = 0 | ($r_sroa_0_1201 << 1 | $q_sroa_1_1198 >>> 31);
+ $r_sroa_0_0_insert_insert42$1 = $r_sroa_0_1201 >>> 31 | $r_sroa_1_1200 << 1 | 0;
+ _i64Subtract($137$0, $137$1, $r_sroa_0_0_insert_insert42$0, $r_sroa_0_0_insert_insert42$1) | 0;
+ $150$1 = tempRet0;
+ $151$0 = $150$1 >> 31 | (($150$1 | 0) < 0 ? -1 : 0) << 1;
+ $152 = $151$0 & 1;
+ $154$0 = _i64Subtract($r_sroa_0_0_insert_insert42$0, $r_sroa_0_0_insert_insert42$1, $151$0 & $d_sroa_0_0_insert_insert99$0, ((($150$1 | 0) < 0 ? -1 : 0) >> 31 | (($150$1 | 0) < 0 ? -1 : 0) << 1) & $d_sroa_0_0_insert_insert99$1) | 0;
+ $r_sroa_0_0_extract_trunc = $154$0;
+ $r_sroa_1_4_extract_trunc = tempRet0;
+ $155 = $sr_1202 - 1 | 0;
+ if (($155 | 0) == 0) {
+ break;
+ } else {
+ $q_sroa_1_1198 = $147;
+ $q_sroa_0_1199 = $149;
+ $r_sroa_1_1200 = $r_sroa_1_4_extract_trunc;
+ $r_sroa_0_1201 = $r_sroa_0_0_extract_trunc;
+ $sr_1202 = $155;
+ $carry_0203 = $152;
+ }
+ }
+ $q_sroa_1_1_lcssa = $147;
+ $q_sroa_0_1_lcssa = $149;
+ $r_sroa_1_1_lcssa = $r_sroa_1_4_extract_trunc;
+ $r_sroa_0_1_lcssa = $r_sroa_0_0_extract_trunc;
+ $carry_0_lcssa$1 = 0;
+ $carry_0_lcssa$0 = $152;
+ }
+ $q_sroa_0_0_insert_ext75$0 = $q_sroa_0_1_lcssa;
+ $q_sroa_0_0_insert_ext75$1 = 0;
+ $q_sroa_0_0_insert_insert77$1 = $q_sroa_1_1_lcssa | $q_sroa_0_0_insert_ext75$1;
+ if (($rem | 0) != 0) {
+ HEAP32[$rem >> 2] = 0 | $r_sroa_0_1_lcssa;
+ HEAP32[$rem + 4 >> 2] = $r_sroa_1_1_lcssa | 0;
+ }
+ $_0$1 = (0 | $q_sroa_0_0_insert_ext75$0) >>> 31 | $q_sroa_0_0_insert_insert77$1 << 1 | ($q_sroa_0_0_insert_ext75$1 << 1 | $q_sroa_0_0_insert_ext75$0 >>> 31) & 0 | $carry_0_lcssa$1;
+ $_0$0 = ($q_sroa_0_0_insert_ext75$0 << 1 | 0 >>> 31) & -2 | $carry_0_lcssa$0;
+ return (tempRet0 = $_0$1, $_0$0) | 0;
+}
+// =======================================================================
+
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