| // |reftest| skip-if(!this.hasOwnProperty("SIMD")) |
| |
| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ |
| */ |
| |
| // Check that NaN normalization is applied when extracting the x lane |
| // out, after bit conversion has occurred. |
| |
| var Int32x4 = SIMD.Int32x4; |
| var a = Int32x4((4294967295), 200, 300, 400); |
| var c = SIMD.Float32x4.fromInt32x4Bits(a); |
| |
| // NaN canonicalization occurs when extracting out x lane: |
| assertEq(SIMD.Float32x4.extractLane(c, 0), NaN); |
| |
| // but underlying bits are faithfully transmitted |
| // (though reinterpreted as a signed integer): |
| var d = SIMD.Int32x4.fromFloat32x4Bits(c); |
| assertEq(SIMD.Int32x4.extractLane(d, 0), -1); |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
