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From: "cmetcalf at ezchip dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug math/18699] New: tilegx cproj() for various complex infinities does not yield infinity
Date: Mon, 20 Jul 2015 21:45:00 -0000	[thread overview]
Message-ID: <bug-18699-131@http.sourceware.org/bugzilla/> (raw)

https://sourceware.org/bugzilla/show_bug.cgi?id=18699

            Bug ID: 18699
           Summary: tilegx cproj() for various complex infinities does not
                    yield infinity
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: cmetcalf at ezchip dot com
  Target Milestone: ---

The float and ifloat tests both fail with the appended output: cproj()
of various complex infinities should be yielding infinity, but instead
yields a very tiny positive number.

This is for glibc 2.22 (almost, as it hasn't fully frozen yet).

testing float (without inline functions)
Failure: Test: Real part of: cproj (inf + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf + +0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf - 0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf + +0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf - 0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (+0 + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (+0 - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-0 + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-0 - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf + 1.0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf - 1.0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf + 1.0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf - 1.0 i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (1.0 + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (1.0 - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-1.0 + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-1.0 - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf + qNaN i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (inf - qNaN i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf + qNaN i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-inf - qNaN i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (qNaN + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (qNaN - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-qNaN + inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf
Failure: Test: Real part of: cproj (-qNaN - inf i)
Result:
 is:          3.57331108402828353086e-43   0x1.fe000000000000000000p-142
 should be:   inf   inf

Test suite completed:
  9998 test cases plus 9169 tests for exception flags and
    9169 tests for errno executed.
  28 errors occurred.

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             reply	other threads:[~2015-07-20 21:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 21:45 cmetcalf at ezchip dot com [this message]
2015-07-22 16:13 ` [Bug math/18699] " cmetcalf at ezchip dot com
2015-10-22 17:30 ` cmetcalf at ezchip dot com
2015-10-22 17:44 ` cvs-commit at gcc dot gnu.org
2015-10-29 16:37 ` jsm28 at gcc dot gnu.org

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