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* [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD @ 2014-04-06 19:44 azanella at linux dot vnet.ibm.com 2014-04-06 19:44 ` [Bug math/16815] " azanella at linux dot vnet.ibm.com ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: azanella at linux dot vnet.ibm.com @ 2014-04-06 19:44 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16815 Bug ID: 16815 Summary: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD Product: glibc Version: 2.20 Status: NEW Severity: normal Priority: P2 Component: math Assignee: unassigned at sourceware dot org Reporter: azanella at linux dot vnet.ibm.com Optimized PowerPC 32-bits nearbyint/nearbyintf show bogus results for FE_DOWNWARD rounding mode, as shown by math failing tests: testing double (without inline functions) Failure: Test: nearbyint_downward (-0.5) Result: is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0 should be: -1.00000000000000000000e+00 -0x1.00000000000000000000p+0 difference: 1.00000000000000000000e+00 0x1.00000000000000000000p+0 ulp : 4503599627370496.0000 max.ulp : 0.0000 Failure: Test: nearbyint_downward (-1.5) Result: is: -1.00000000000000000000e+00 -0x1.00000000000000000000p+0 should be: -2.00000000000000000000e+00 -0x1.00000000000000000000p+1 difference: 1.00000000000000000000e+00 0x1.00000000000000000000p+0 ulp : 2251799813685248.0000 max.ulp : 0.0000 Failure: Test: nearbyint_downward (-2.5) Result: is: -2.00000000000000000000e+00 -0x1.00000000000000000000p+1 should be: -3.00000000000000000000e+00 -0x1.80000000000000000000p+1 difference: 1.00000000000000000000e+00 0x1.00000000000000000000p+0 ulp : 2251799813685248.0000 max.ulp : 0.0000 Failure: Test: nearbyint_downward (-3.5) Result: is: -3.00000000000000000000e+00 -0x1.80000000000000000000p+1 should be: -4.00000000000000000000e+00 -0x1.00000000000000000000p+2 difference: 1.00000000000000000000e+00 0x1.00000000000000000000p+0 ulp : 1125899906842624.0000 max.ulp : 0.0000 Failure: Test: nearbyint_downward (-4.5) Result: is: -4.00000000000000000000e+00 -0x1.00000000000000000000p+2 should be: -5.00000000000000000000e+00 -0x1.40000000000000000000p+2 difference: 1.00000000000000000000e+00 0x1.00000000000000000000p+0 ulp : 1125899906842624.0000 max.ulp : 0.0000 These are not all the failing tests, just an except. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug math/16815] PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD 2014-04-06 19:44 [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD azanella at linux dot vnet.ibm.com @ 2014-04-06 19:44 ` azanella at linux dot vnet.ibm.com 2014-04-06 19:45 ` azanella at linux dot vnet.ibm.com ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: azanella at linux dot vnet.ibm.com @ 2014-04-06 19:44 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16815 --- Comment #1 from Adhemerval Zanella Netto <azanella at linux dot vnet.ibm.com> --- The same optimized implementation for PowerPC64 does not shown any issue in any rounding mode. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug math/16815] PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD 2014-04-06 19:44 [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD azanella at linux dot vnet.ibm.com 2014-04-06 19:44 ` [Bug math/16815] " azanella at linux dot vnet.ibm.com @ 2014-04-06 19:45 ` azanella at linux dot vnet.ibm.com 2014-04-06 20:11 ` azanella at linux dot vnet.ibm.com 2014-06-12 19:46 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: azanella at linux dot vnet.ibm.com @ 2014-04-06 19:45 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16815 Adhemerval Zanella Netto <azanella at linux dot vnet.ibm.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at sourceware dot org |azanella at linux dot vnet.ibm.com Target Milestone|--- |2.20 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug math/16815] PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD 2014-04-06 19:44 [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD azanella at linux dot vnet.ibm.com 2014-04-06 19:44 ` [Bug math/16815] " azanella at linux dot vnet.ibm.com 2014-04-06 19:45 ` azanella at linux dot vnet.ibm.com @ 2014-04-06 20:11 ` azanella at linux dot vnet.ibm.com 2014-06-12 19:46 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: azanella at linux dot vnet.ibm.com @ 2014-04-06 20:11 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16815 Adhemerval Zanella Netto <azanella at linux dot vnet.ibm.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #2 from Adhemerval Zanella Netto <azanella at linux dot vnet.ibm.com> --- Fixed by 8bd70862e11023e7f827f240a5a214f847ae982d. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug math/16815] PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD 2014-04-06 19:44 [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD azanella at linux dot vnet.ibm.com ` (2 preceding siblings ...) 2014-04-06 20:11 ` azanella at linux dot vnet.ibm.com @ 2014-06-12 19:46 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: fweimer at redhat dot com @ 2014-06-12 19:46 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16815 Florian Weimer <fweimer at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |security- -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-06-12 19:46 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-04-06 19:44 [Bug math/16815] New: PowerPC: nearbyint/nearbyintf bogus result for FE_DOWNWARD azanella at linux dot vnet.ibm.com 2014-04-06 19:44 ` [Bug math/16815] " azanella at linux dot vnet.ibm.com 2014-04-06 19:45 ` azanella at linux dot vnet.ibm.com 2014-04-06 20:11 ` azanella at linux dot vnet.ibm.com 2014-06-12 19:46 ` fweimer at redhat dot com
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