26 lines
849 B
JavaScript
26 lines
849 B
JavaScript
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/* Test undoing addition in overflow paths when under heavy register pressure. */
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function add1(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
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function add2(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
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function add3(x, y, a, b, res) { var nres = res + 0; var z = (x + a) + (y + b); assertEq(z, nres); }
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add1(0x7ffffff0, 100, 0, 0, 2147483732);
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add2(-1000, -0x80000000, 0, 0, -2147484648);
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add3(-0x80000000, -1000, 0, 0, -2147484648);
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function cadd1(x, a, b, res) {
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var nres = res + 0;
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var nb = b + 0;
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var z = (x + a) + 1000;
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assertEq(z, nres + nb);
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}
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cadd1(0x7ffffff0, 0, 0, 2147484632);
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function cadd2(x, a, b, res) {
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var nres = res + 0;
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var nb = b + 0;
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var z = (x + a) + (-0x80000000);
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assertEq(z, nres + nb);
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}
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cadd2(-1000, 0, 0, -2147484648);
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