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Utilize Binaryen's -O4

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When specifying -O3 or -Oz, asc now automatically increases the optimize level to 4, then including costly non-LLVM optimizations for blocky code, in turn achieving similar results as an LLVM-based generator.
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dcodeIO
2018-06-09 14:05:33 +02:00
parent e9094bbd6f
commit c6ec5e2832
46 changed files with 14240 additions and 16223 deletions
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4
cli/asc.js
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@ -491,6 +491,10 @@ exports.main = function main(argv, options, callback) {
shrinkLevel = 2;
}
// Implicitly run costly non-LLVM optimizations on -O3 or -Oz
// see: https://github.com/WebAssembly/binaryen/pull/1596
if (optimizeLevel >= 3 || shrinkLevel >= 2) optimizeLevel = 4;
module.setOptimizeLevel(optimizeLevel > 0 ? optimizeLevel : 0);
module.setShrinkLevel(shrinkLevel);
module.setDebugInfo(debugInfo);