test/mjsunit/compiler/regress-106351.js

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// Flags: --allow-natives-syntax

// Test Math.round with the input reused in the same expression.
function test(x) {
  var v = Math.round(x) - x;
  assertEquals(0.5, v);
}

for (var i = 0; i < 5; ++i) test(0.5);
%OptimizeFunctionOnNextCall(test);
test(0.5);