[Bug math/16422] New: math-float, math-double failing llrint tests with "Exception "Inexact" set" on ppc32

["brooks at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16422

            Bug ID: 16422
           Summary: math-float, math-double failing llrint tests with
                    "Exception "Inexact" set" on ppc32
           Product: glibc
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: brooks at gcc dot gnu.org

This is failing with GLIBC trunk as of 10am PST on 2014-01-09.

Configure with "../glibc/configure --prefix=/usr CC='gcc -m32' CXX='g++ -m32'
--target=powerpc32-unknown-linux-gnu --build=powerpc32-unknown-linux-gnu
--host=powerpc32-unknown-linux-gnu" on an IBM Power7; run "make" and "make
check".

I'm seeing failures in both math/test-float and math/test-double, with
essentially identical test-*.out outputs.  The contents of test-float.out are:

This bug report is fr the llrint failures; I'll file the logb_downward failure
separately.

----
testing float (without inline functions)
Failure: Test: logb_downward (1.000e+0)
Result:
 is:         -0.00000000000000000000e+00  -0x0.00000000000000000000p+0
 should be:   0.00000000000000000000e+00   0x0.00000000000000000000p+0
 difference:  0.00000000000000000000e+00   0x0.00000000000000000000p+0
 ulp       :  0.0000
 max.ulp   :  0.0000
Failure: llrint (2097151.0): Exception "Inexact" set
Failure: llrint (8388608.0): Exception "Inexact" set
Failure: llrint (16777216.0): Exception "Inexact" set
Failure: llrint (4503601774854144.0): Exception "Inexact" set
Failure: llrint_tonearest (2097151.0): Exception "Inexact" set
Failure: llrint_tonearest (8388608.0): Exception "Inexact" set
Failure: llrint_tonearest (16777216.0): Exception "Inexact" set
Failure: llrint_tonearest (4503601774854144.0): Exception "Inexact" set
Failure: llrint_towardzero (2097151.0): Exception "Inexact" set
Failure: llrint_towardzero (8388608.0): Exception "Inexact" set
Failure: llrint_towardzero (16777216.0): Exception "Inexact" set
Failure: llrint_towardzero (4503601774854144.0): Exception "Inexact" set
Failure: llrint_downward (2097151.0): Exception "Inexact" set
Failure: llrint_downward (8388608.0): Exception "Inexact" set
Failure: llrint_downward (16777216.0): Exception "Inexact" set
Failure: llrint_downward (4503601774854144.0): Exception "Inexact" set
Failure: llrint_upward (2097151.0): Exception "Inexact" set
Failure: llrint_upward (8388608.0): Exception "Inexact" set
Failure: llrint_upward (16777216.0): Exception "Inexact" set
Failure: llrint_upward (4503601774854144.0): Exception "Inexact" set
Failure: nexttoward (qNaN, 1.1): Exception "Inexact" set

Test suite completed:
  10843 test cases plus 10244 tests for exception flags and
    10244 tests for errno executed.
  22 errors occurred.

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