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math: Fix the expected atanf (inf) results

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The M_PI_2 (lit_pi_2_d) constant is not the expected value for atanf
on non-default rounding modes.  Instead use the autogenerated value.
This commit is contained in:
Adhemerval Zanella 2024-11-20 14:21:56 -03:00
parent aa3e67ced6
commit 517c213377
3 changed files with 52 additions and 2 deletions
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2
math/auto-libm-test-in
View File

@ -515,6 +515,8 @@ asinpi -min
asinpi min_subnorm
asinpi -min_subnorm
atan inf
atan -inf
atan 0
atan -0
atan max

50
math/auto-libm-test-out-atan
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@ -1,3 +1,53 @@
atan inf
= atan downward binary32 plus_infty : 0x1.921fb4p+0 : inexact-ok
= atan tonearest binary32 plus_infty : 0x1.921fb6p+0 : inexact-ok
= atan towardzero binary32 plus_infty : 0x1.921fb4p+0 : inexact-ok
= atan upward binary32 plus_infty : 0x1.921fb6p+0 : inexact-ok
= atan downward binary64 plus_infty : 0x1.921fb54442d18p+0 : inexact-ok
= atan tonearest binary64 plus_infty : 0x1.921fb54442d18p+0 : inexact-ok
= atan towardzero binary64 plus_infty : 0x1.921fb54442d18p+0 : inexact-ok
= atan upward binary64 plus_infty : 0x1.921fb54442d19p+0 : inexact-ok
= atan downward intel96 plus_infty : 0x1.921fb54442d18468p+0 : inexact-ok
= atan tonearest intel96 plus_infty : 0x1.921fb54442d1846ap+0 : inexact-ok
= atan towardzero intel96 plus_infty : 0x1.921fb54442d18468p+0 : inexact-ok
= atan upward intel96 plus_infty : 0x1.921fb54442d1846ap+0 : inexact-ok
= atan downward m68k96 plus_infty : 0x1.921fb54442d18468p+0 : inexact-ok
= atan tonearest m68k96 plus_infty : 0x1.921fb54442d1846ap+0 : inexact-ok
= atan towardzero m68k96 plus_infty : 0x1.921fb54442d18468p+0 : inexact-ok
= atan upward m68k96 plus_infty : 0x1.921fb54442d1846ap+0 : inexact-ok
= atan downward binary128 plus_infty : 0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan tonearest binary128 plus_infty : 0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan towardzero binary128 plus_infty : 0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan upward binary128 plus_infty : 0x1.921fb54442d18469898cc51701b9p+0 : inexact-ok
= atan downward ibm128 plus_infty : 0x1.921fb54442d18469898cc517018p+0 : inexact-ok
= atan tonearest ibm128 plus_infty : 0x1.921fb54442d18469898cc517018p+0 : inexact-ok
= atan towardzero ibm128 plus_infty : 0x1.921fb54442d18469898cc517018p+0 : inexact-ok
= atan upward ibm128 plus_infty : 0x1.921fb54442d18469898cc51702p+0 : inexact-ok
atan -inf
= atan downward binary32 minus_infty : -0x1.921fb6p+0 : inexact-ok
= atan tonearest binary32 minus_infty : -0x1.921fb6p+0 : inexact-ok
= atan towardzero binary32 minus_infty : -0x1.921fb4p+0 : inexact-ok
= atan upward binary32 minus_infty : -0x1.921fb4p+0 : inexact-ok
= atan downward binary64 minus_infty : -0x1.921fb54442d19p+0 : inexact-ok
= atan tonearest binary64 minus_infty : -0x1.921fb54442d18p+0 : inexact-ok
= atan towardzero binary64 minus_infty : -0x1.921fb54442d18p+0 : inexact-ok
= atan upward binary64 minus_infty : -0x1.921fb54442d18p+0 : inexact-ok
= atan downward intel96 minus_infty : -0x1.921fb54442d1846ap+0 : inexact-ok
= atan tonearest intel96 minus_infty : -0x1.921fb54442d1846ap+0 : inexact-ok
= atan towardzero intel96 minus_infty : -0x1.921fb54442d18468p+0 : inexact-ok
= atan upward intel96 minus_infty : -0x1.921fb54442d18468p+0 : inexact-ok
= atan downward m68k96 minus_infty : -0x1.921fb54442d1846ap+0 : inexact-ok
= atan tonearest m68k96 minus_infty : -0x1.921fb54442d1846ap+0 : inexact-ok
= atan towardzero m68k96 minus_infty : -0x1.921fb54442d18468p+0 : inexact-ok
= atan upward m68k96 minus_infty : -0x1.921fb54442d18468p+0 : inexact-ok
= atan downward binary128 minus_infty : -0x1.921fb54442d18469898cc51701b9p+0 : inexact-ok
= atan tonearest binary128 minus_infty : -0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan towardzero binary128 minus_infty : -0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan upward binary128 minus_infty : -0x1.921fb54442d18469898cc51701b8p+0 : inexact-ok
= atan downward ibm128 minus_infty : -0x1.921fb54442d18469898cc51702p+0 : inexact-ok
= atan tonearest ibm128 minus_infty : -0x1.921fb54442d18469898cc517018p+0 : inexact-ok
= atan towardzero ibm128 minus_infty : -0x1.921fb54442d18469898cc517018p+0 : inexact-ok
= atan upward ibm128 minus_infty : -0x1.921fb54442d18469898cc517018p+0 : inexact-ok
atan 0
= atan downward binary32 0x0p+0 : 0x0p+0 : inexact-ok
= atan tonearest binary32 0x0p+0 : 0x0p+0 : inexact-ok

2
math/libm-test-atan.inc
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@ -20,8 +20,6 @@
static const struct test_f_f_data atan_test_data[] =
{
TEST_f_f (atan, plus_infty, lit_pi_2_d, ERRNO_UNCHANGED),
TEST_f_f (atan, minus_infty, -lit_pi_2_d, ERRNO_UNCHANGED),
TEST_f_f (atan, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (atan, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (atan, snan_value, qnan_value, INVALID_EXCEPTION),