v8/test/mjsunit/compiler/regress-1085.js

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// Flags: --allow-natives-syntax

// Test correct checks for negative zero.
// This test relies on specific type feedback for Math.min.
function f(x) { return 1 / Math.min(1, x); }

%PrepareFunctionForOptimization(f);
for (var i = 0; i < 5; ++i) f(1);
%OptimizeFunctionOnNextCall(f);

assertEquals(-Infinity, f(-0));