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Correct tinyness handling in long-double and float y0/y1.

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With help from Joseph Myers.
	* sysdeps/ieee754/flt-32/e_j0f.c (__ieee754_y0f): Adjust tinyness
	cutoff to 2**-13.
	* sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_y1f): Adjust tinyness
	cutoff to 2**-25.
	* sysdeps/ieee754/ldbl-128/e_j0l.c (U0): New constant.
	( __ieee754_y0l): Avoid arithmetic underflow when 'x' is very
	small.
	* sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_y1l): Likewise.
	* math/libm-test.inc (y0_test): New tests.
	(y1_test): New tests.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Update.
	* sysdeps/sparc/fpu/libm-test-ulps: Update.
This commit is contained in:
David S. Miller
2012-11-18 12:33:53 -08:00
parent 786b0b67a3
commit 05b227bdae
9 changed files with 154 additions and 3 deletions
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47
sysdeps/sparc/fpu/libm-test-ulps
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@ -1328,8 +1328,8 @@ Test "Imaginary part of: clog10 (0xf2p-10 + 0x3e3p-10 i) == 2.692124017335111295
double: 1
idouble: 1
Test "Imaginary part of: clog10 (0xfd95243681c055c2632286921092p-113 + 0x1bccabcd29ca2152860ec29e34ef7p-113 i) == 2.8774482675253468630312378575186855052697e-66 + 0.4571561610046221605554903008571429975493 i":
ldouble: 2
ildouble: 2
ldouble: 2
Test "Imaginary part of: clog10 (0xfe961079616p-45 + 0x1bc37e09e6d1p-45 i) == 2.3329549194675052736016290082882121135546e-26 + 0.4561756099441139182878993697611751382976 i":
double: 1
idouble: 1
@ -2861,6 +2861,43 @@ double: 1
idouble: 1
ildouble: 1
ldouble: 1
Test "y0 (0x1p-10) == -4.4865150767109739412411806297168793661098":
double: 1
idouble: 1
ildouble: 1
ldouble: 1
Test "y0 (0x1p-110) == -4.861363632869203777249475899390797503250e+1":
double: 1
idouble: 1
ildouble: 1
ldouble: 1
Test "y0 (0x1p-20) == -8.8992283012125827603076426611387876938160":
float: 1
ifloat: 1
Test "y0 (0x1p-30) == -1.3311940304267782826037118027401817264906e+1":
float: 1
ifloat: 1
ildouble: 2
ldouble: 2
Test "y0 (0x1p-40) == -1.7724652307320814696990854700366226762563e+1":
double: 1
float: 1
idouble: 1
ifloat: 1
Test "y0 (0x1p-50) == -2.2137364310373846564919987139743760738155e+1":
float: 1
ifloat: 1
Test "y0 (0x1p-60) == -2.6550076313426878432849115782108205929120e+1":
ildouble: 1
ldouble: 1
Test "y0 (0x1p-70) == -3.0962788316479910300778244424468159753887e+1":
double: 1
idouble: 1
Test "y0 (0x1p-80) == -3.5375500319532942168707373066828113573541e+1":
double: 1
float: 1
idouble: 1
ifloat: 1
Test "y0 (1.0) == 0.0882569642156769579829267660235151628":
double: 2
float: 1
@ -2897,6 +2934,14 @@ ldouble: 1
Test "y1 (0x1.27e204p+99) == -8.881610148467797208469612080785210013461e-16":
double: 1
idouble: 1
Test "y1 (0x1p-10) == -6.5190099301063115047395187618929589514382e+02":
double: 1
idouble: 1
ildouble: 1
ldouble: 1
Test "y1 (0x1p-30) == -6.8356527557643159612937462812258975438856e+08":
ildouble: 1
ldouble: 1
Test "y1 (1.5) == -0.412308626973911295952829820633445323":
float: 1
ifloat: 1