[Bug math/23886] New: Testsuite fails math/test-float64x-float128-mul on sparc*

["glaubitz at physik dot fu-berlin.de" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23886

            Bug ID: 23886
           Summary: Testsuite fails math/test-float64x-float128-mul on
                    sparc*
           Product: glibc
           Version: 2.28
               URL: https://buildd.debian.org/status/fetch.php?pkg=glibc&a
                    rch=sparc64&ver=2.28-0experimental1&stamp=1542070823&r
                    aw=0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: glaubitz at physik dot fu-berlin.de
                CC: adhemerval.zanella at linaro dot org,
                    jose.marchesi at oracle dot com, jrtc27 at jrtc27 dot com,
                    matorola at gmail dot com
  Target Milestone: ---
            Target: sparc64-*-*

Since 2.28, the testsuite for glibc fails on sparc64 with:

FAIL: math/test-float64x-float128-mul
original exit status 1
testing _Float64x (argument _Float128)
Failure: mul_ldouble (0x3.00000000000018p+0, 0x5.5555555555555558p-4):
Exception "Inexact" not set
Failure: mul_ldouble (-0xf.ffffffffffffbffffffffffffcp+1020, -0xf.fffffp+124):
Exception "Inexact" not set
Failure: mul_ldouble (-0xf.ffffffffffffbffffffffffffcp+1020, 0xf.fffffp+124):
Exception "Inexact" not set
Failure: mul_ldouble (-0xf.fffffp+124, -0xf.ffffffffffffbffffffffffffcp+1020):
Exception "Inexact" not set
Failure: mul_ldouble (-0xf.fffffp+124, 0xf.ffffffffffffbffffffffffffcp+1020):
Exception "Inexact" not set
Failure: mul_ldouble (0xf.ffffffffffffbffffffffffffcp+1020, -0xf.fffffp+124):
Exception "Inexact" not set
Failure: mul_ldouble (0xf.ffffffffffffbffffffffffffcp+1020, 0xf.fffffp+124):
Exception "Inexact" not set
Failure: mul_ldouble (0xf.fffffp+124, -0xf.ffffffffffffbffffffffffffcp+1020):
Exception "Inexact" not set
Failure: mul_ldouble (0xf.fffffp+124, 0xf.ffffffffffffbffffffffffffcp+1020):
Exception "Inexact" not set
Failure: mul_ldouble (0x5.000005p+0, 0x3.33333333333333333333333334p-4):
Exception "Inexact" not set
Failure: mul_ldouble (0x5.0000000000000005p+0, 0x3.3333333333334p-4): Exception
"Inexact" not set
Failure: mul_ldouble (0x5.00000000000028p+0, 0x3.3333333333333334p-4):
Exception "Inexact" not set
Failure: mul_ldouble (0x5.0000000000000005p+0, 0x3.3333333333333334p-4):
Exception "Inexact" not set
Failure: mul_downward_ldouble (0x3.00000000000018p+0, 0x5.5555555555555558p-4):
Exception "Inexact" not set
Failure: mul_downward_ldouble (-0xf.ffffffffffffbffffffffffffcp+1020,
-0xf.fffffp+124): Exception "Inexact" not set
Failure: mul_downward_ldouble (-0xf.ffffffffffffbffffffffffffcp+1020,
0xf.fffffp+124): Exception "Inexact" not set
Failure: Test: mul_downward_ldouble (-0xf.ffffffffffffbffffffffffffcp+1020,
0xf.fffffp+124)

Full build log available at:
https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=sparc64&ver=2.28-0experimental1&stamp=1542070823&raw=0

sparc64 porterboxes running Linux and Solaris can be found at the gcc compile
farm: https://cfarm.tetaneutral.net/machines/list/

Please let me know if you need anymore input.

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