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sparc long double math failures...

From: David Miller <davem at davemloft dot net>
To: libc-alpha at sourceware dot org
Cc: joseph at codesourcery dot com
Date: Sun, 17 Mar 2013 12:38:06 -0400 (EDT)
Subject: sparc long double math failures...

Joseph, this commit:

2013-03-16  Joseph Myers  <joseph@codesourcery.com>

        [BZ #15283]
        * sysdeps/ieee754/ldbl-96/e_j1l.c (__ieee754_y1l): Correct test
        for arguments at most half maximum finite value.
        * math/libm-test.inc (j0_test): Add more tests.
        (j1_test): Likewise.
        (y0_test): Likewise.
        (y1_test): Likewise.
        * sysdeps/i386/fpu/libm-test-ulps: Update.
        * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.

        [BZ #14155]
        * sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_j0l): Do not compute
        1 / x and functions P and Q for arguments above 0x1p256L.
        (__ieee754_y0l): Likewise.
        * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): Likewise.
        (__ieee754_y1l): Likewise.
        * math/libm-test.inc (j0_test): Do not allow spurious underflows.
        (j1_test): Likewise.
        (y0_test): Likewise.
        (y1_test): Likewise.

Introduced the following long double math test failures on sparc:

test-ldouble:

testing long double (without inline functions)
Failure: j0 (0x1p16383) == 9.5859502826270374691362975419147645151233e-2467: Exception "Invalid operation" se\
t
Failure: j0 (0x1p16383) == 9.5859502826270374691362975419147645151233e-2467: Exception "Overflow" set
Failure: j1 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467: Exception "Invalid operation" s\
et
Failure: j1 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467: Exception "Overflow" set
Failure: Test: j1 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467
Result:
 is:          nan   nan
 should be:  -3.88955319557660206486e-2467  -0x1.b26f313524de8c1bb07cp-8194
Failure: y0 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467: Exception "Invalid operation" s\
et
Failure: y0 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467: Exception "Overflow" set
Failure: Test: y0 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467
Result:
 is:         -nan  -nan
 should be:  -3.88955319557660206486e-2467  -0x1.b26f313524de8c1bb07cp-8194
Failure: y1 (0x1p16383) == -9.5859502826270374691362975419147645151233e-2467: Exception "Invalid operation" s\
et
Failure: y1 (0x1p16383) == -9.5859502826270374691362975419147645151233e-2467: Exception "Overflow" set

Test suite completed:
  7016 test cases plus 6011 tests for exception flags executed.
  10 errors occurred.

test-ildoubl:

testing long double (inline functions)
Failure: Test: j1 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467
Result:
 is:          nan   nan
 should be:  -3.88955319557660206486e-2467  -0x1.b26f313524de8c1bb07cp-8194
Failure: Test: y0 (0x1p16383) == -3.8895531955766020648617743624167352352217e-2467
Result:
 is:         -nan  -nan
 should be:  -3.88955319557660206486e-2467  -0x1.b26f313524de8c1bb07cp-8194

Test suite completed:
  6949 test cases plus 5944 tests for exception flags executed.
  2 errors occurred.

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