diff options
| -rw-r--r-- | src/tools/wasm2js.cpp | 7 | ||||
| -rw-r--r-- | test/wasm2js/emscripten.2asm.js.opt | 4 |
2 files changed, 3 insertions, 8 deletions
diff --git a/src/tools/wasm2js.cpp b/src/tools/wasm2js.cpp index d64f0b0ab..24e4037e7 100644 --- a/src/tools/wasm2js.cpp +++ b/src/tools/wasm2js.cpp @@ -254,13 +254,8 @@ static void optimizeJS(Ref ast, Wasm2JSBuilder::Flags flags) { return false; }; + // Optimize given that the expression is flowing into a boolean context auto optimizeBoolean = [&](Ref node) { - if (isConstantBinary(node, XOR, 1)) { - // x ^ 1 => !x - node[0]->setString(UNARY_PREFIX); - node[1]->setString(L_NOT); - node[3]->setNull(); - } // TODO: in some cases it may be possible to turn // // if (x | 0) diff --git a/test/wasm2js/emscripten.2asm.js.opt b/test/wasm2js/emscripten.2asm.js.opt index 35f2958e0..2661d3c1d 100644 --- a/test/wasm2js/emscripten.2asm.js.opt +++ b/test/wasm2js/emscripten.2asm.js.opt @@ -155,13 +155,13 @@ function asmFunc(global, env, buffer) { bools(HEAP32[0] & 1); bools(HEAPU8[0] & 2); bools($0 ^ 1); - if (!$0) { + if ($0 ^ 1) { bools(2) } if ($0 ^ 2) { bools(2) } - bools(!!$0); + bools(!($0 ^ 1)); abort(); } |