test/mjsunit/lithium/MulI.js

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// Flags: --allow-natives-syntax --no-use-osr

function foo_smi(a, b) {
  var result = a * b;
  result += a * 35;
  result += a * -1;
  result += a * 1;
  result += a * 0;
  return result * a;
}

function foo_int(a, b) {
  var result = a * b;
  result += a * 35;
  result += a * -1;
  result += a * 1;
  result += a * 0;
  return result * a;
}

%PrepareFunctionForOptimization(foo_smi);
foo_smi(10, 5);
var r1 = foo_smi(10, 5);
%OptimizeFunctionOnNextCall(foo_smi);
var r2 = foo_smi(10, 5);

assertEquals(r1, r2);

%PrepareFunctionForOptimization(foo_int);
foo_int(10, 21474800);
var r3 = foo_int(10, 21474800);
%OptimizeFunctionOnNextCall(foo_int);
var r4 = foo_int(10, 21474800);

assertEquals(r3, r4);

// Check overflow with -1 constant.
function foo2(value) {
  return value * -1;
}

%PrepareFunctionForOptimization(foo2);
foo2(-2147483600);
foo2(-2147483600);
%OptimizeFunctionOnNextCall(foo2);
assertEquals(2147483648, foo2(-2147483648));