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Fix fma (a, b, c) for small a * b (bugs 14784, 14785).
This commit is contained in:
Joseph Myers
parent
4078da3d4e
commit
473611b22d
13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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2012-11-01 Joseph Myers <joseph@codesourcery.com>
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[BZ #14784]
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[BZ #14785]
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* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Handle cases with small
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x * y using scaling, not as x * y + z.
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* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Likewise.
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* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Likewise.
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* math/libm-test.inc (fma_test): Add more tests.
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(fma_test_towardzero): Likewise.
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(fma_test_downward): Likewise.
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(fma_test_upward): Likewise.
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2012-11-01 Thomas Schwinge <thomas@codesourcery.com>
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* sysdeps/mach/hurd/bits/param.h: Remove stray #endif.
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2
NEWS
2
NEWS
@ -17,7 +17,7 @@ Version 2.17
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14459, 14476, 14477, 14505, 14510, 14516, 14518, 14519, 14530, 14532,
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14538, 14543, 14544, 14545, 14557, 14562, 14568, 14576, 14579, 14583,
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14587, 14595, 14602, 14610, 14621, 14638, 14645, 14648, 14652, 14660,
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14661, 14683, 14694, 14716, 14743, 14767, 14783.
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14661, 14683, 14694, 14716, 14743, 14767, 14783, 14784, 14785.
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* Support for STT_GNU_IFUNC symbols added for s390 and s390x.
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Optimized versions of memcpy, memset, and memcmp added for System z10 and
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@ -4633,6 +4633,22 @@ fma_test (void)
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TEST_fff_f (fma, -0x1p-149, 0x1p-1, -0x0.fffffep-126, -0x1p-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1.1p-1, 0x0.fffffep-126, 0x1p-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-149, 0x1.1p-1, -0x0.fffffep-126, -0x1p-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p127, 0x1p127);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p127, 0x1p127);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p127, -0x1p127);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p127, -0x1p127);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-126, 0x1p-126);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-126, 0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-126, -0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-126, -0x1p-126);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-149, 0x1p-149, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-149, 0x1p-149, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-149, -0x1p-149, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-149, -0x1p-149, UNDERFLOW_EXCEPTION);
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#endif
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#if defined (TEST_DOUBLE) && DBL_MANT_DIG == 53
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TEST_fff_f (fma, 0x1.7fp+13, 0x1.0000000000001p+0, 0x1.ffep-48, 0x1.7f00000000001p+13);
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@ -4663,6 +4679,22 @@ fma_test (void)
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TEST_fff_f (fma, -0x1p-1074, 0x1p-1, -0x0.fffffffffffffp-1022, -0x1p-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1.1p-1, 0x0.fffffffffffffp-1022, 0x1p-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-1074, 0x1.1p-1, -0x0.fffffffffffffp-1022, -0x1p-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p1023, 0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p1023, 0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p1023, -0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p1023, -0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1022, 0x1p-1022);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1022, 0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1022, -0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1022, -0x1p-1022);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1074, 0x1p-1074, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1074, 0x1p-1074, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1074, -0x1p-1074, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1074, -0x1p-1074, UNDERFLOW_EXCEPTION);
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#endif
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#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 64
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TEST_fff_f (fma, -0x8.03fcp+3696L, 0xf.fffffffffffffffp-6140L, 0x8.3ffffffffffffffp-2450L, -0x8.01ecp-2440L);
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@ -4679,6 +4711,22 @@ fma_test (void)
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TEST_fff_f (fma, -0x1p-16445L, 0x1p-1L, -0x0.fffffffffffffffep-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, 0x1.1p-1L, 0x0.fffffffffffffffep-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-16445L, 0x1.1p-1L, -0x0.fffffffffffffffep-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p16383L, 0x1p16383L);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p16383L, 0x1p16383L);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p16383L, -0x1p16383L);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p16383L, -0x1p16383L);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16382L, 0x1p-16382L);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16382L, -0x1p-16382L);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16445L, 0x1p-16445L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, -0x1p-16445L, UNDERFLOW_EXCEPTION);
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#endif
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#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 113
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TEST_fff_f (fma, 0x1.bb2de33e02ccbbfa6e245a7c1f71p-2584L, -0x1.6b500daf0580d987f1bc0cadfcddp-13777L, 0x1.613cd91d9fed34b33820e5ab9d8dp-16378L, -0x1.3a79fb50eb9ce887cffa0f09bd9fp-16360L);
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@ -4702,6 +4750,22 @@ fma_test (void)
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TEST_fff_f (fma, -0x1p-16494L, 0x1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, 0x1.1p-1L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-16494L, 0x1.1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p16383L, 0x1p16383L);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p16383L, 0x1p16383L);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p16383L, -0x1p16383L);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p16383L, -0x1p16383L);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16382L, 0x1p-16382L);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16382L, -0x1p-16382L);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16494L, 0x1p-16494L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, -0x1p-16494L, UNDERFLOW_EXCEPTION);
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#endif
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END (fma);
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@ -4766,6 +4830,22 @@ fma_test_towardzero (void)
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TEST_fff_f (fma, -0x1p-149, 0x1p-1, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1.1p-1, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-149, 0x1.1p-1, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p127, 0x1p127);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p127, 0x0.ffffffp127);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p127, -0x0.ffffffp127);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p127, -0x1p127);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-126, 0x1p-126);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-126, -0x1p-126);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x0.fffffep-126, 0x0.fffffcp-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x0.fffffep-126, -0x0.fffffcp-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-149, 0x1p-149, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-149, plus_zero, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-149, minus_zero, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-149, -0x1p-149, UNDERFLOW_EXCEPTION);
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#endif
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#if defined (TEST_DOUBLE) && DBL_MANT_DIG == 53
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TEST_fff_f (fma, 0x1.4p-1022, 0x1.0000000000002p-1, 0x1p-1024, 0x1.c000000000002p-1023, UNDERFLOW_EXCEPTION);
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@ -4776,6 +4856,22 @@ fma_test_towardzero (void)
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TEST_fff_f (fma, -0x1p-1074, 0x1p-1, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1.1p-1, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, -0x1p-1074, 0x1.1p-1, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p1023, 0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p1023, 0x0.fffffffffffff8p1023);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p1023, -0x0.fffffffffffff8p1023);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p1023, -0x1p1023);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1022, 0x1p-1022);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1022, -0x1p-1022);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.ffffffffffffep-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.ffffffffffffep-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1074, 0x1p-1074, UNDERFLOW_EXCEPTION);
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TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1074, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1074, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1074, -0x1p-1074, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 64
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000004p-1L, 0x1p-16384L, 0x1.c000000000000004p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4786,6 +4882,22 @@ fma_test_towardzero (void)
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1p-1L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1.1p-1L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1.1p-1L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p16383L, 0x0.ffffffffffffffffp16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p16383L, -0x0.ffffffffffffffffp16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16382L, 0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16382L, -0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffcp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffcp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16445L, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16445L, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, -0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 113
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000000000000000002p-1L, 0x1p-16384L, 0x1.c000000000000000000000000002p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4796,6 +4908,22 @@ fma_test_towardzero (void)
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1.1p-1L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1.1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p16383L, 0x0.ffffffffffffffffffffffffffff8p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p16383L, -0x0.ffffffffffffffffffffffffffff8p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16382L, 0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16382L, -0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.fffffffffffffffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.fffffffffffffffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16494L, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16494L, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, -0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
}
|
||||
|
||||
@ -4863,6 +4991,22 @@ fma_test_downward (void)
|
||||
TEST_fff_f (fma, -0x1p-149, 0x1p-1, -0x0.fffffep-126, -0x1p-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1.1p-1, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-149, 0x1.1p-1, -0x0.fffffep-126, -0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p127, 0x1p127);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p127, 0x0.ffffffp127);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p127, -0x1p127);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p127, -0x1.000002p127);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-126, 0x1p-126);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-126, -0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-126, -0x1.000002p-126);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x0.fffffep-126, 0x0.fffffcp-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x0.fffffep-126, -0x1p-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-149, 0x1p-149, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-149, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-149, -0x1p-149, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-149, -0x1p-148, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_DOUBLE) && DBL_MANT_DIG == 53
|
||||
TEST_fff_f (fma, 0x1.4p-1022, 0x1.0000000000002p-1, 0x1p-1024, 0x1.c000000000002p-1023, UNDERFLOW_EXCEPTION);
|
||||
@ -4873,6 +5017,22 @@ fma_test_downward (void)
|
||||
TEST_fff_f (fma, -0x1p-1074, 0x1p-1, -0x0.fffffffffffffp-1022, -0x1p-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1.1p-1, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-1074, 0x1.1p-1, -0x0.fffffffffffffp-1022, -0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p1023, 0x1p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p1023, 0x0.fffffffffffff8p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p1023, -0x1p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p1023, -0x1.0000000000001p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1022, 0x1p-1022);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1022, -0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1022, -0x1.0000000000001p-1022);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.ffffffffffffep-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x0.fffffffffffffp-1022, -0x1p-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1074, 0x1p-1074, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1074, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1074, -0x1p-1074, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1074, -0x1p-1073, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 64
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000004p-1L, 0x1p-16384L, 0x1.c000000000000004p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4883,6 +5043,22 @@ fma_test_downward (void)
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1p-1L, -0x0.fffffffffffffffep-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1.1p-1L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1.1p-1L, -0x0.fffffffffffffffep-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p16383L, 0x0.ffffffffffffffffp16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p16383L, -0x1.0000000000000002p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16382L, 0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16382L, -0x1.0000000000000002p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffcp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16445L, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, -0x1p-16444L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 113
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000000000000000002p-1L, 0x1p-16384L, 0x1.c000000000000000000000000002p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4893,6 +5069,22 @@ fma_test_downward (void)
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1.1p-1L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1.1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p16383L, 0x0.ffffffffffffffffffffffffffff8p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p16383L, -0x1.0000000000000000000000000001p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16382L, 0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16382L, -0x1.0000000000000000000000000001p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.fffffffffffffffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16494L, plus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, -0x1p-16493L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
}
|
||||
|
||||
@ -4960,6 +5152,22 @@ fma_test_upward (void)
|
||||
TEST_fff_f (fma, -0x1p-149, 0x1p-1, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1.1p-1, 0x0.fffffep-126, 0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, -0x1p-149, 0x1.1p-1, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p127, 0x1.000002p127);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p127, 0x1p127);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p127, -0x0.ffffffp127);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p127, -0x1p127);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-126, 0x1.000002p-126);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-126, 0x1p-126, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-126, -0x1p-126);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x0.fffffep-126, 0x1p-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x0.fffffep-126, 0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x0.fffffep-126, -0x0.fffffcp-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x0.fffffep-126, -0x0.fffffep-126, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, 0x1p-149, 0x1p-148, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, 0x1p-149, 0x1p-149, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, 0x1p-149, -0x1p-149, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-149, -0x1p-149, -0x1p-149, -0x1p-149, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_DOUBLE) && DBL_MANT_DIG == 53
|
||||
TEST_fff_f (fma, 0x1.4p-1022, 0x1.0000000000002p-1, 0x1p-1024, 0x1.c000000000004p-1023, UNDERFLOW_EXCEPTION);
|
||||
@ -4970,6 +5178,22 @@ fma_test_upward (void)
|
||||
TEST_fff_f (fma, -0x1p-1074, 0x1p-1, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1.1p-1, 0x0.fffffffffffffp-1022, 0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, -0x1p-1074, 0x1.1p-1, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p1023, 0x1.0000000000001p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p1023, 0x1p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p1023, -0x0.fffffffffffff8p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p1023, -0x1p1023);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1022, 0x1.0000000000001p-1022);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1022, 0x1p-1022, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1022, -0x1p-1022);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x0.fffffffffffffp-1022, 0x1p-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.ffffffffffffep-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x0.fffffffffffffp-1022, -0x0.fffffffffffffp-1022, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, 0x1p-1074, 0x1p-1073, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, 0x1p-1074, 0x1p-1074, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, 0x1p-1074, -0x1p-1074, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-1074, -0x1p-1074, -0x1p-1074, -0x1p-1074, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 64
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000004p-1L, 0x1p-16384L, 0x1.c000000000000008p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4980,6 +5204,22 @@ fma_test_upward (void)
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1p-1L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1.1p-1L, 0x0.fffffffffffffffep-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, -0x1p-16445L, 0x1.1p-1L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p16383L, 0x1.0000000000000002p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p16383L, -0x0.ffffffffffffffffp16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16382L, 0x1.0000000000000002p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16382L, -0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x0.fffffffffffffffep-16382L, 0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffcp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x0.fffffffffffffffep-16382L, -0x0.fffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, 0x1p-16445L, 0x1p-16444L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, 0x1p-16445L, 0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, 0x1p-16445L, -0x1p-16445L, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16445L, -0x1p-16445L, -0x1p-16445L, -0x1p-16445L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
#if defined (TEST_LDOUBLE) && LDBL_MANT_DIG == 113
|
||||
TEST_fff_f (fma, 0x1.4p-16382L, 0x1.0000000000000000000000000002p-1L, 0x1p-16384L, 0x1.c000000000000000000000000004p-16383L, UNDERFLOW_EXCEPTION);
|
||||
@ -4990,6 +5230,22 @@ fma_test_upward (void)
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1.1p-1L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, -0x1p-16494L, 0x1.1p-1L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p16383L, 0x1.0000000000000000000000000001p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p16383L, 0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p16383L, -0x0.ffffffffffffffffffffffffffff8p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p16383L, -0x1p16383L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16382L, 0x1.0000000000000000000000000001p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION_BEFORE_ROUNDING);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16382L, -0x1p-16382L);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x1p-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x0.ffffffffffffffffffffffffffffp-16382L, 0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.fffffffffffffffffffffffffffep-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x0.ffffffffffffffffffffffffffffp-16382L, -0x0.ffffffffffffffffffffffffffffp-16382L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, 0x1p-16494L, 0x1p-16493L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, 0x1p-16494L, 0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, 0x1p-16494L, -0x1p-16494L, minus_zero, UNDERFLOW_EXCEPTION);
|
||||
TEST_fff_f (fma, 0x1p-16494L, -0x1p-16494L, -0x1p-16494L, -0x1p-16494L, UNDERFLOW_EXCEPTION);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
@ -56,16 +56,44 @@ __fma (double x, double y, double z)
|
||||
if (z == 0 && x != 0 && y != 0)
|
||||
return x * y;
|
||||
/* If x or y or z is Inf/NaN, or if fma will certainly overflow,
|
||||
or if x * y is less than half of DBL_DENORM_MIN,
|
||||
compute as x * y + z. */
|
||||
or if x * y is zero, compute as x * y + z. */
|
||||
if (u.ieee.exponent == 0x7ff
|
||||
|| v.ieee.exponent == 0x7ff
|
||||
|| w.ieee.exponent == 0x7ff
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
> 0x7ff + IEEE754_DOUBLE_BIAS
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE754_DOUBLE_BIAS - DBL_MANT_DIG - 2)
|
||||
|| x == 0
|
||||
|| y == 0)
|
||||
return x * y + z;
|
||||
/* If x * y is less than 1/4 of DBL_DENORM_MIN, neither the
|
||||
result nor whether there is underflow depends on its exact
|
||||
value, only on its sign. */
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE754_DOUBLE_BIAS - DBL_MANT_DIG - 2)
|
||||
{
|
||||
int neg = u.ieee.negative ^ v.ieee.negative;
|
||||
double tiny = neg ? -0x1p-1074 : 0x1p-1074;
|
||||
if (w.ieee.exponent >= 3)
|
||||
return tiny + z;
|
||||
/* Scaling up, adding TINY and scaling down produces the
|
||||
correct result, because in round-to-nearest mode adding
|
||||
TINY has no effect and in other modes double rounding is
|
||||
harmless. But it may not produce required underflow
|
||||
exceptions. */
|
||||
v.d = z * 0x1p54 + tiny;
|
||||
if (TININESS_AFTER_ROUNDING
|
||||
? v.ieee.exponent < 55
|
||||
: (w.ieee.exponent == 0
|
||||
|| (w.ieee.exponent == 1
|
||||
&& w.ieee.negative != neg
|
||||
&& w.ieee.mantissa1 == 0
|
||||
&& w.ieee.mantissa0 == 0)))
|
||||
{
|
||||
volatile double force_underflow = x * y;
|
||||
(void) force_underflow;
|
||||
}
|
||||
return v.d * 0x1p-54;
|
||||
}
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
>= 0x7ff + IEEE754_DOUBLE_BIAS - DBL_MANT_DIG)
|
||||
{
|
||||
|
||||
@ -57,16 +57,46 @@ __fmal (long double x, long double y, long double z)
|
||||
if (z == 0 && x != 0 && y != 0)
|
||||
return x * y;
|
||||
/* If x or y or z is Inf/NaN, or if fma will certainly overflow,
|
||||
or if x * y is less than half of LDBL_DENORM_MIN,
|
||||
compute as x * y + z. */
|
||||
or if x * y is zero, compute as x * y + z. */
|
||||
if (u.ieee.exponent == 0x7fff
|
||||
|| v.ieee.exponent == 0x7fff
|
||||
|| w.ieee.exponent == 0x7fff
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
> 0x7fff + IEEE854_LONG_DOUBLE_BIAS
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG - 2)
|
||||
|| x == 0
|
||||
|| y == 0)
|
||||
return x * y + z;
|
||||
/* If x * y is less than 1/4 of LDBL_DENORM_MIN, neither the
|
||||
result nor whether there is underflow depends on its exact
|
||||
value, only on its sign. */
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG - 2)
|
||||
{
|
||||
int neg = u.ieee.negative ^ v.ieee.negative;
|
||||
long double tiny = neg ? -0x1p-16494L : 0x1p-16494L;
|
||||
if (w.ieee.exponent >= 3)
|
||||
return tiny + z;
|
||||
/* Scaling up, adding TINY and scaling down produces the
|
||||
correct result, because in round-to-nearest mode adding
|
||||
TINY has no effect and in other modes double rounding is
|
||||
harmless. But it may not produce required underflow
|
||||
exceptions. */
|
||||
v.d = z * 0x1p114L + tiny;
|
||||
if (TININESS_AFTER_ROUNDING
|
||||
? v.ieee.exponent < 115
|
||||
: (w.ieee.exponent == 0
|
||||
|| (w.ieee.exponent == 1
|
||||
&& w.ieee.negative != neg
|
||||
&& w.ieee.mantissa3 == 0
|
||||
&& w.ieee.mantissa2 == 0
|
||||
&& w.ieee.mantissa1 == 0
|
||||
&& w.ieee.mantissa0 == 0)))
|
||||
{
|
||||
volatile long double force_underflow = x * y;
|
||||
(void) force_underflow;
|
||||
}
|
||||
return v.d * 0x1p-114L;
|
||||
}
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
>= 0x7fff + IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG)
|
||||
{
|
||||
|
||||
@ -57,16 +57,44 @@ __fmal (long double x, long double y, long double z)
|
||||
if (z == 0 && x != 0 && y != 0)
|
||||
return x * y;
|
||||
/* If x or y or z is Inf/NaN, or if fma will certainly overflow,
|
||||
or if x * y is less than half of LDBL_DENORM_MIN,
|
||||
compute as x * y + z. */
|
||||
or if x * y is zero, compute as x * y + z. */
|
||||
if (u.ieee.exponent == 0x7fff
|
||||
|| v.ieee.exponent == 0x7fff
|
||||
|| w.ieee.exponent == 0x7fff
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
> 0x7fff + IEEE854_LONG_DOUBLE_BIAS
|
||||
|| u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG - 2)
|
||||
|| x == 0
|
||||
|| y == 0)
|
||||
return x * y + z;
|
||||
/* If x * y is less than 1/4 of LDBL_DENORM_MIN, neither the
|
||||
result nor whether there is underflow depends on its exact
|
||||
value, only on its sign. */
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
< IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG - 2)
|
||||
{
|
||||
int neg = u.ieee.negative ^ v.ieee.negative;
|
||||
long double tiny = neg ? -0x1p-16445L : 0x1p-16445L;
|
||||
if (w.ieee.exponent >= 3)
|
||||
return tiny + z;
|
||||
/* Scaling up, adding TINY and scaling down produces the
|
||||
correct result, because in round-to-nearest mode adding
|
||||
TINY has no effect and in other modes double rounding is
|
||||
harmless. But it may not produce required underflow
|
||||
exceptions. */
|
||||
v.d = z * 0x1p65L + tiny;
|
||||
if (TININESS_AFTER_ROUNDING
|
||||
? v.ieee.exponent < 66
|
||||
: (w.ieee.exponent == 0
|
||||
|| (w.ieee.exponent == 1
|
||||
&& w.ieee.negative != neg
|
||||
&& w.ieee.mantissa1 == 0
|
||||
&& w.ieee.mantissa0 == 0x80000000)))
|
||||
{
|
||||
volatile long double force_underflow = x * y;
|
||||
(void) force_underflow;
|
||||
}
|
||||
return v.d * 0x1p-65L;
|
||||
}
|
||||
if (u.ieee.exponent + v.ieee.exponent
|
||||
>= 0x7fff + IEEE854_LONG_DOUBLE_BIAS - LDBL_MANT_DIG)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user