test/mjsunit/compiler/inline-compare.js

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// Test that we can inline a function that returns the result of
// a compare operation.
function TestInlineCompare(o) {
  // Effect context.
  o.f();
  // Value context.
  var x = o.f();
  assertFalse(x);
  assertFalse(o.f());
  // Test context.
  if (o.f()) {
    assertTrue(false);  // Should not happen.
  }
}

var o = {};
o.f = function() { return 0 === 1; };
for (var i = 0; i < 10000000; i++) TestInlineCompare(o);
TestInlineCompare({f: o.f});