diff options
| author | Alon Zakai <alonzakai@gmail.com> | 2011-09-13 10:20:23 -0700 |
|---|---|---|
| committer | Alon Zakai <alonzakai@gmail.com> | 2011-09-13 10:20:23 -0700 |
| commit | 3dba21acf3bbbdf448bf79ef2794f12eb5c92a97 (patch) | |
| tree | b0e24f66c53bb856632940f7299740a2aae70fcf | |
| parent | ef124013a59d1a9727aa057d48e0e3cbea0d2de9 (diff) | |
do not do some unnecessary signing/unsigning
| -rw-r--r-- | src/parseTools.js | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/parseTools.js b/src/parseTools.js index 350083e6..73d7e647 100644 --- a/src/parseTools.js +++ b/src/parseTools.js @@ -1162,6 +1162,8 @@ function processMathop(item) { with(item) { item['ident'+i] = null; // just so it exists for purposes of reading ident2 etc. later on, and no exception is thrown } } + var originalIdent1 = ident1; + var originalIdent2 = ident2; if (isUnsignedOp(op, variant)) { ident1 = makeSignOp(ident1, paramTypes[0], 'un'); ident2 = makeSignOp(ident2, paramTypes[1], 'un'); @@ -1227,10 +1229,12 @@ function processMathop(item) { with(item) { } case 'ashr': { if (bits > 32) return integerizeBignum(ident1 + '/Math.pow(2,' + ident2 + ')'); + if (bits === 32) return originalIdent1 + ' >> ' + ident2; // No need to reSign in this case return ident1 + ' >> ' + ident2; } case 'lshr': { if (bits > 32) return integerizeBignum(ident1 + '/Math.pow(2,' + ident2 + ')'); + if (bits === 32) return originalIdent1 + ' >>> ' + ident2; // No need to unSign in this case return ident1 + ' >>> ' + ident2; } // basic float ops |