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* [Bug math/17257] New: erf generates spurious underflow for long-double-128
@ 2014-08-11 22:05 davem at davemloft dot net
2014-08-11 22:31 ` [Bug math/17257] " joseph at codesourcery dot com
2015-09-15 16:23 ` [Bug math/17257] [sparc] " jsm28 at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: davem at davemloft dot net @ 2014-08-11 22:05 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17257
Bug ID: 17257
Summary: erf generates spurious underflow for long-double-128
Product: glibc
Version: 2.20
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: davem at davemloft dot net
On sparc 32-bit and 64-bit, test-ldouble fails as follows:
Failure: erf (0x3.8b7f12369ded5518p-16384): Exception "Underflow" set
Failure: erf_downward (0x3.8b7f12369ded5518p-16384): Exception "Underflow" set
Failure: erf_towardzero (0x3.8b7f12369ded5518p-16384): Exception "Underflow"
set
Failure: erf_upward (0x3.8b7f12369ded5518p-16384): Exception "Underflow" set
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* [Bug math/17257] erf generates spurious underflow for long-double-128
2014-08-11 22:05 [Bug math/17257] New: erf generates spurious underflow for long-double-128 davem at davemloft dot net
@ 2014-08-11 22:31 ` joseph at codesourcery dot com
2015-09-15 16:23 ` [Bug math/17257] [sparc] " jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: joseph at codesourcery dot com @ 2014-08-11 22:31 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17257
--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
I do *not* see these on mips64 (n32), for which I'm currently running
tests (with GCC 4.9, so supporting exceptions for long double). Such
failures were supposed to be fixed by the fix for bug 16516; you may have
some architecture-specific issue here.
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* [Bug math/17257] [sparc] erf generates spurious underflow for long-double-128
2014-08-11 22:05 [Bug math/17257] New: erf generates spurious underflow for long-double-128 davem at davemloft dot net
2014-08-11 22:31 ` [Bug math/17257] " joseph at codesourcery dot com
@ 2015-09-15 16:23 ` jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-09-15 16:23 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17257
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Host| |sparc*-*-*
Summary|erf generates spurious |[sparc] erf generates
|underflow for |spurious underflow for
|long-double-128 |long-double-128
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2014-08-11 22:05 [Bug math/17257] New: erf generates spurious underflow for long-double-128 davem at davemloft dot net
2014-08-11 22:31 ` [Bug math/17257] " joseph at codesourcery dot com
2015-09-15 16:23 ` [Bug math/17257] [sparc] " jsm28 at gcc dot gnu.org
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