| // Copyright (C) 1988-1994 Sun Microsystems, Inc. 2550 Garcia Avenue |
| // Mountain View, California 94043 All rights reserved. |
| // |
| // Any person is hereby authorized to download, copy, use, create bug fixes, |
| // and distribute, subject to the following conditions: |
| // |
| // 1. the software may not be redistributed for a fee except as |
| // reasonable to cover media costs; |
| // 2. any copy of the software must include this notice, as well as |
| // any other embedded copyright notices; and |
| // 3. any distribution of this software or derivative works thereof |
| // must comply with all applicable U.S. export control laws. |
| // |
| // THE SOFTWARE IS MADE AVAILABLE "AS IS" AND WITHOUT EXPRESS OR IMPLIED |
| // WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO THE IMPLIED |
| // WARRANTIES OF DESIGN, MERCHANTIBILITY, FITNESS FOR A PARTICULAR |
| // PURPOSE, NON-INFRINGEMENT, PERFORMANCE OR CONFORMANCE TO |
| // SPECIFICATIONS. |
| // |
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| // atan2s(+-0,+anything but nan) is +-0 |
| T(RN, 0x0p+0, 0x0p+0, 0x0p+0, 0x0p+0, 0) |
| T(RN, 0x0p+0, 0x1p-149, 0x0p+0, 0x0p+0, 0) |
| T(RN, 0x0p+0, 0x1p-129, 0x0p+0, 0x0p+0, 0) |
| T(RN, 0x0p+0, 0x1.fffffep+127, 0x0p+0, 0x0p+0, 0) |
| T(RN, 0x0p+0, inf, 0x0p+0, 0x0p+0, 0) |
| T(RN, -0x0p+0, 0x0p+0, -0x0p+0, 0x0p+0, 0) |
| T(RN, -0x0p+0, 0x1p-149, -0x0p+0, 0x0p+0, 0) |
| T(RN, -0x0p+0, 0x1p-129, -0x0p+0, 0x0p+0, 0) |
| T(RN, -0x0p+0, 0x1.fffffep+127, -0x0p+0, 0x0p+0, 0) |
| T(RN, -0x0p+0, inf, -0x0p+0, 0x0p+0, 0) |
| // atan2s(+-0,-anything but nan) is +-pi |
| T(RN, 0x0p+0, -inf, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x0p+0,-0x1.fffffep+127, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x0p+0, -0x1p-129, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x0p+0, -0x1p-149, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x0p+0, -0x0p+0, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, -0x0p+0, -inf, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x0p+0,-0x1.fffffep+127, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x0p+0, -0x1p-129, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x0p+0, -0x1p-149, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x0p+0, -0x0p+0, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| // atan2s(+-anything but 0 and nan, 0) is +- pi/2 |
| T(RN, inf, 0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, inf, -0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1.fffffep+127, 0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1.fffffep+127, -0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1p-126, 0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1p-126, -0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1p-149, 0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1p-149, -0x0p+0, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, 0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, -0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, 0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, -0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-126, 0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-126, -0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-149, 0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-149, -0x0p+0, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| // atan2s(big,small) :=: +-pi/2 |
| T(RN, 0x1.fffffep+127, 0x1p-126, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1.fffffep+127, -0x1p-126, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, 0x1p-126, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, -0x1p-126, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RZ, 0x1.fffffep+127, 0x1p-126, 0x1.921fb4p+0, -0x1.4442d2p-1, INEXACT) |
| T(RZ, 0x1.fffffep+127, -0x1p-126, 0x1.921fb4p+0, -0x1.4442d2p-1, INEXACT) |
| T(RZ,-0x1.fffffep+127, 0x1p-126, -0x1.921fb4p+0, 0x1.4442d2p-1, INEXACT) |
| T(RZ,-0x1.fffffep+127, -0x1p-126, -0x1.921fb4p+0, 0x1.4442d2p-1, INEXACT) |
| T(RU, 0x1.fffffep+127, 0x1p-126, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RU, 0x1.fffffep+127, -0x1p-126, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RU,-0x1.fffffep+127, 0x1p-126, -0x1.921fb4p+0, 0x1.4442d2p-1, INEXACT) |
| T(RU,-0x1.fffffep+127, -0x1p-126, -0x1.921fb4p+0, 0x1.4442d2p-1, INEXACT) |
| T(RD, 0x1.fffffep+127, 0x1p-126, 0x1.921fb4p+0, -0x1.4442d2p-1, INEXACT) |
| T(RD, 0x1.fffffep+127, -0x1p-126, 0x1.921fb4p+0, -0x1.4442d2p-1, INEXACT) |
| T(RD,-0x1.fffffep+127, 0x1p-126, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RD,-0x1.fffffep+127, -0x1p-126, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| // atan2s(small,big) = small/big (big>0) |
| T(RN, 0x1p-126, 0x1.fffffep+127, 0x0p+0,-0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RN, -0x1p-126, 0x1.fffffep+127, -0x0p+0, 0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RN, 0x1p-126,-0x1.fffffep+127, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-126,-0x1.fffffep+127, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RZ, 0x1p-126, 0x1.fffffep+127, 0x0p+0,-0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RZ, -0x1p-126, 0x1.fffffep+127, -0x0p+0, 0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RZ, 0x1p-126,-0x1.fffffep+127, 0x1.921fb4p+1, -0x1.4442d2p-1, INEXACT) |
| T(RZ, -0x1p-126,-0x1.fffffep+127, -0x1.921fb4p+1, 0x1.4442d2p-1, INEXACT) |
| T(RU, 0x1p-126, 0x1.fffffep+127, 0x1p-149, 0x1p+0, INEXACT|UNDERFLOW) |
| T(RU, -0x1p-126, 0x1.fffffep+127, -0x0p+0, 0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RU, 0x1p-126,-0x1.fffffep+127, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RU, -0x1p-126,-0x1.fffffep+127, -0x1.921fb4p+1, 0x1.4442d2p-1, INEXACT) |
| T(RD, 0x1p-126, 0x1.fffffep+127, 0x0p+0,-0x1.000002p-105, INEXACT|UNDERFLOW) |
| T(RD, -0x1p-126, 0x1.fffffep+127, -0x1p-149, -0x1p+0, INEXACT|UNDERFLOW) |
| T(RD, 0x1p-126,-0x1.fffffep+127, 0x1.921fb4p+1, -0x1.4442d2p-1, INEXACT) |
| T(RD, -0x1p-126,-0x1.fffffep+127, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| // atan2s(+-x,+x) = +-pi/4 for normal x |
| T(RN, 0x1p-126, 0x1p-126, 0x1.921fb6p-1, 0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-126, 0x1p-126, -0x1.921fb6p-1, -0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1.fffffep+127, 0x1.fffffep+127, 0x1.921fb6p-1, 0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, 0x1.fffffep+127, -0x1.921fb6p-1, -0x1.777a5cp-2, INEXACT) |
| // atan2s(+-x,-x) = +-3pi/4 for normal x |
| T(RN, 0x1p-126, -0x1p-126, 0x1.2d97c8p+1, 0x1.99bc5cp-6, INEXACT) |
| T(RN, -0x1p-126, -0x1p-126, -0x1.2d97c8p+1, -0x1.99bc5cp-6, INEXACT) |
| T(RN, 0x1p+0, -0x1p+0, 0x1.2d97c8p+1, 0x1.99bc5cp-6, INEXACT) |
| T(RN, -0x1p+0, -0x1p+0, -0x1.2d97c8p+1, -0x1.99bc5cp-6, INEXACT) |
| T(RN, 0x1.fffffep+127,-0x1.fffffep+127, 0x1.2d97c8p+1, 0x1.99bc5cp-6, INEXACT) |
| T(RN,-0x1.fffffep+127,-0x1.fffffep+127, -0x1.2d97c8p+1, -0x1.99bc5cp-6, INEXACT) |
| // random arguments between -2.0 and 2.0 |
| T(RN, -0x1.13284cp-1, 0x1.6ca8ep+0, -0x1.716d2p-2, 0x1.90111p-3, INEXACT) |
| T(RN, 0x1.c2ca6p+0, -0x1.55f12p+0, 0x1.1c206ep+1, 0x1.1ac042p-2, INEXACT) |
| T(RN, -0x1.15679ep-1, -0x1.41e132p-4, -0x1.b6ff44p+0, -0x1.2ecaf4p-4, INEXACT) |
| T(RN, 0x1.281b0ep+0, 0x1.b5ce34p+0, 0x1.30789cp-1, 0x1.17e61ap-3, INEXACT) |
| T(RN, -0x1.583482p-2, -0x1.ea8224p+0, -0x1.7be508p+1, 0x1.e4c608p-3, INEXACT) |
| T(RN, -0x1.aae18p-1, 0x1.7a9da2p-4, -0x1.75db7cp+0, 0x1.483b7cp-6, INEXACT) |
| T(RN, -0x1.845p+0, 0x1.6ca322p+0, -0x1.a237b2p-1, -0x1.e3262p-3, INEXACT) |
| T(RN, -0x1.fe09bep+0, -0x1.ff6c7ep+0, -0x1.2dc43cp+1, 0x1.348c12p-4, INEXACT) |
| T(RN, -0x1.d24c82p-1, 0x1.29b682p+0, -0x1.5428a2p-1, 0x1.e59fe4p-3, INEXACT) |
| T(RN, 0x1.25ea7ep-1, 0x1.f99598p-1, 0x1.0d9c96p-1, -0x1.3ef8ecp-7, INEXACT) |
| // atan2s involve nan |
| T(RN, 0x0p+0, nan, nan, 0x0p+0, 0) |
| T(RN, 0x1p+0, nan, nan, 0x0p+0, 0) |
| T(RN, nan, 0x1p-149, nan, 0x0p+0, 0) |
| T(RN, nan,-0x1.fffffep+127, nan, 0x0p+0, 0) |
| T(RN, nan, nan, nan, 0x0p+0, 0) |
| T(RN, nan, nan, nan, 0x0p+0, 0) |
| T(RZ, 0x0p+0, nan, nan, 0x0p+0, 0) |
| T(RZ, 0x1p+0, nan, nan, 0x0p+0, 0) |
| T(RZ, nan, 0x1p-149, nan, 0x0p+0, 0) |
| T(RZ, nan,-0x1.fffffep+127, nan, 0x0p+0, 0) |
| T(RZ, nan, nan, nan, 0x0p+0, 0) |
| T(RZ, nan, nan, nan, 0x0p+0, 0) |
| T(RU, 0x0p+0, nan, nan, 0x0p+0, 0) |
| T(RU, 0x1p+0, nan, nan, 0x0p+0, 0) |
| T(RU, nan, 0x1p-149, nan, 0x0p+0, 0) |
| T(RU, nan,-0x1.fffffep+127, nan, 0x0p+0, 0) |
| T(RU, nan, nan, nan, 0x0p+0, 0) |
| T(RU, nan, nan, nan, 0x0p+0, 0) |
| T(RD, 0x0p+0, nan, nan, 0x0p+0, 0) |
| T(RD, 0x1p+0, nan, nan, 0x0p+0, 0) |
| T(RD, nan, 0x1p-149, nan, 0x0p+0, 0) |
| T(RD, nan,-0x1.fffffep+127, nan, 0x0p+0, 0) |
| T(RD, nan, nan, nan, 0x0p+0, 0) |
| T(RD, nan, nan, nan, 0x0p+0, 0) |
| // atan2s(+-(anything but inf and nan), +inf) is +-0 |
| T(RN, 0x1p-149, inf, 0x0p+0, 0x0p+0, 0) |
| T(RN, 0x1.fffffep+127, inf, 0x0p+0, 0x0p+0, 0) |
| T(RN, -0x1p-149, inf, -0x0p+0, 0x0p+0, 0) |
| T(RN,-0x1.fffffep+127, inf, -0x0p+0, 0x0p+0, 0) |
| // atan2s(+-(anything but inf and nan), -inf) is +-pi |
| T(RN, 0x1p-149, -inf, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, 0x1.fffffep+127, -inf, 0x1.921fb6p+1, 0x1.777a5cp-2, INEXACT) |
| T(RN, -0x1p-149, -inf, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| T(RN,-0x1.fffffep+127, -inf, -0x1.921fb6p+1, -0x1.777a5cp-2, INEXACT) |
| // atan2s(+-inf,+inf ) is +-pi/4 |
| T(RN, inf, inf, 0x1.921fb6p-1, 0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, inf, -0x1.921fb6p-1, -0x1.777a5cp-2, INEXACT) |
| // atan2s(+-inf,-inf ) is +-3pi/4 |
| T(RN, inf, -inf, 0x1.2d97c8p+1, 0x1.99bc5cp-6, INEXACT) |
| T(RN, -inf, -inf, -0x1.2d97c8p+1, -0x1.99bc5cp-6, INEXACT) |
| // atan2s(+-inf, (anything but,0,nan, and inf)) is +-pi/2 |
| T(RN, inf, 0x1p-149, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, inf, -0x1p-149, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, inf, 0x1.fffffep+127, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, inf,-0x1.fffffep+127, 0x1.921fb6p+0, 0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, 0x1p-149, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, -0x1p-149, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -inf, 0x1.fffffep+127, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |
| T(RN, -inf,-0x1.fffffep+127, -0x1.921fb6p+0, -0x1.777a5cp-2, INEXACT) |