From 05b227bdaea9a5f1faf08dad31221d8736f3659d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 18 Nov 2012 12:33:53 -0800 Subject: Correct tinyness handling in long-double and float y0/y1. 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. --- sysdeps/i386/fpu/libm-test-ulps | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'sysdeps/i386') diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index 239da44a79..8da973a2f6 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -3015,6 +3015,28 @@ ldouble: 1 Test "y0 (0x1.ff00000000002p+840) == 1.846591691699331493194965158699937660696e-127": double: 1 idouble: 1 +Test "y0 (0x1p-10) == -4.4865150767109739412411806297168793661098": +ildouble: 1 +ldouble: 1 +Test "y0 (0x1p-30) == -1.3311940304267782826037118027401817264906e+1": +double: 1 +idouble: 1 +ildouble: 1 +ldouble: 1 +Test "y0 (0x1p-40) == -1.7724652307320814696990854700366226762563e+1": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +Test "y0 (0x1p-60) == -2.6550076313426878432849115782108205929120e+1": +double: 1 +idouble: 1 +Test "y0 (0x1p-70) == -3.0962788316479910300778244424468159753887e+1": +double: 1 +idouble: 1 +Test "y0 (0x1p-80) == -3.5375500319532942168707373066828113573541e+1": +double: 1 +idouble: 1 Test "y0 (1.0) == 0.0882569642156769579829267660235151628": double: 2 float: 1 @@ -3056,6 +3078,9 @@ idouble: 1 ifloat: 2 ildouble: 1 ldouble: 1 +Test "y1 (0x1p-10) == -6.5190099301063115047395187618929589514382e+02": +float: 1 +ifloat: 1 Test "y1 (1.0) == -0.781212821300288716547150000047964821": double: 1 idouble: 1 -- cgit 1.4.1