math: add some special case tests

[libc-test] / src / math / special / exp2.h

diff --git a/src/math/special/exp2.h b/src/math/special/exp2.h
index 488577c..bde4a28 100644 (file)
--- a/src/math/special/exp2.h
+++ b/src/math/special/exp2.h
@@ -14,3 +14,12 @@ T(RN,    0x1.fff3333333333p+9, 0x1.ddb680117aa8ep+1023,   0x1.966dfcp-2, INEXACT
 T(RN,                 0x1p+10,                     inf,          0x0p+0, INEXACT|OVERFLOW)
 T(RN,   0x1.0006666666666p+10,                     inf,          0x0p+0, INEXACT|OVERFLOW)
 T(RN,    0x1.91eb851eb851fp+1,    0x1.1a167423fc31cp+3,   0x1.9287b8p-2, INEXACT)
+T(RN,             -0x1.ff4p+9, 0x1.6a09e667f3bccp-1023,   -0x1.21166p-2, INEXACT|UNDERFLOW)
+T(RN,             -0x1.ff8p+9,               0x1p-1023,          0x0p+0, 0)
+T(RN,             -0x1.ffcp+9, 0x1.6a09e667f3bccp-1024,   -0x1.21166p-3, INEXACT|UNDERFLOW)
+T(RN,                -0x1p+10,               0x1p-1024,          0x0p+0, 0)
+T(RN,            -0x1.004p+10,               0x1p-1025,          0x0p+0, 0)
+T(RN,            -0x1.0c8p+10,               0x1p-1074,          0x0p+0, 0)
+T(RN,            -0x1.0cap+10,               0x1p-1074,   0x1.2bec34p-2, INEXACT|UNDERFLOW)
+T(RN,            -0x1.0ccp+10,                  0x0p+0,         -0x1p-1, INEXACT|UNDERFLOW)
+T(RN,                -0x1p+11,                  0x0p+0,          0x0p+0, INEXACT|UNDERFLOW)