public inbox for glibc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug math/16503] New: [SH] wrong results on fma
@ 2014-01-25 2:12 kkojima at rr dot iij4u.or.jp
2014-01-25 2:14 ` [Bug math/16503] " kkojima at rr dot iij4u.or.jp
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: kkojima at rr dot iij4u.or.jp @ 2014-01-25 2:12 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16503
Bug ID: 16503
Summary: [SH] wrong results on fma
Product: glibc
Version: 2.19
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: kkojima at rr dot iij4u.or.jp
fma produces wrong results on SH4. Here is the fma part of
libm-test-ulps:
# fma
Test "fma (-0x1.fffffffffffffp-711, 0x1.fffffffffffffp-275,
0x1.fffffe00007ffp-983)":
double: 1
idouble: 1
Test "fma (0x1.0000002p+0, 0x1.ffffffcp-1, -0x1p-300)":
double: 1
idouble: 1
Test "fma (0x1.153d650bb9f06p-907, 0x1.2d01230d48407p-125,
-0x0.b278d5acfc3cp-1022)":
double: 1
idouble: 1
Test "fma (0x1.4000004p-967, 0x1p-106, 0x0.000001p-1022)":
double: 1
idouble: 1
Test "fma (0x1.7ff8p+13, 0x1.000002p+0, 0x1.ffffp-24)":
float: 1
ifloat: 1
Test "fma (0x1.7fffff8p-968, 0x1p-106, 0x0.000001p-1022)":
double: 1
idouble: 1
--
You are receiving this mail because:
You are on the CC list for the bug.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug math/16503] [SH] wrong results on fma 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp @ 2014-01-25 2:14 ` kkojima at rr dot iij4u.or.jp 2014-01-27 0:05 ` [Bug math/16503] [SH] wrong results on fma_towardzero kkojima at rr dot iij4u.or.jp ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: kkojima at rr dot iij4u.or.jp @ 2014-01-25 2:14 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 Kaz Kojima <kkojima at rr dot iij4u.or.jp> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |sh4-linux Priority|P2 |P3 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug math/16503] [SH] wrong results on fma_towardzero 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp 2014-01-25 2:14 ` [Bug math/16503] " kkojima at rr dot iij4u.or.jp @ 2014-01-27 0:05 ` kkojima at rr dot iij4u.or.jp 2014-02-06 18:40 ` [Bug math/16503] [sh] " jsm28 at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: kkojima at rr dot iij4u.or.jp @ 2014-01-27 0:05 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 Kaz Kojima <kkojima at rr dot iij4u.or.jp> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[SH] wrong results on fma |[SH] wrong results on | |fma_towardzero --- Comment #1 from Kaz Kojima <kkojima at rr dot iij4u.or.jp> --- It turned out that these errors are bogus result without -mieee SH gcc option which is required for proper IEEE arithmetic on this target. Although the lines for fma went away with enabling -mieee, there are new fma_towardzero lines: # fma_towardzero Test "fma_towardzero (-0x1.ffffffffffffcp-1022, 0x1.0000000000001p-1, -0x1p-1074)": double: 1 idouble: 1 Test "fma_towardzero (-0x1p-1074, 0x1.1p-1, -0x0.fffffffffffffp-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1.ffffffffffffcp-1022, 0x1.0000000000001p-1, 0x1p-1074)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, -0x1p-1074, 0x0.fffffffffffffp-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, -0x1p-1074, 0x1p-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, -0x1p-1074, 0x1p-1074)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, -0x1p-1074, 0x1p1023)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, 0x1.1p-1, 0x0.fffffffffffffp-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, 0x1p-1074, -0x0.fffffffffffffp-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, 0x1p-1074, -0x1p-1022)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, 0x1p-1074, -0x1p-1074)": double: 1 idouble: 1 Test "fma_towardzero (0x1p-1074, 0x1p-1074, -0x1p1023)": double: 1 idouble: 1 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug math/16503] [sh] wrong results on fma_towardzero 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp 2014-01-25 2:14 ` [Bug math/16503] " kkojima at rr dot iij4u.or.jp 2014-01-27 0:05 ` [Bug math/16503] [SH] wrong results on fma_towardzero kkojima at rr dot iij4u.or.jp @ 2014-02-06 18:40 ` jsm28 at gcc dot gnu.org 2014-06-13 8:51 ` fweimer at redhat dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jsm28 at gcc dot gnu.org @ 2014-02-06 18:40 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 Joseph Myers <jsm28 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Host| |sh4-*-* Summary|[SH] wrong results on |[sh] wrong results on |fma_towardzero |fma_towardzero -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug math/16503] [sh] wrong results on fma_towardzero 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp ` (2 preceding siblings ...) 2014-02-06 18:40 ` [Bug math/16503] [sh] " jsm28 at gcc dot gnu.org @ 2014-06-13 8:51 ` fweimer at redhat dot com 2014-06-20 22:58 ` olegendo at gcc dot gnu.org 2022-05-10 9:21 ` zimmerma+gcc at loria dot fr 5 siblings, 0 replies; 7+ messages in thread From: fweimer at redhat dot com @ 2014-06-13 8:51 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 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] 7+ messages in thread
* [Bug math/16503] [sh] wrong results on fma_towardzero 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp ` (3 preceding siblings ...) 2014-06-13 8:51 ` fweimer at redhat dot com @ 2014-06-20 22:58 ` olegendo at gcc dot gnu.org 2022-05-10 9:21 ` zimmerma+gcc at loria dot fr 5 siblings, 0 replies; 7+ messages in thread From: olegendo at gcc dot gnu.org @ 2014-06-20 22:58 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 Oleg Endo <olegendo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |olegendo at gcc dot gnu.org -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug math/16503] [sh] wrong results on fma_towardzero 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp ` (4 preceding siblings ...) 2014-06-20 22:58 ` olegendo at gcc dot gnu.org @ 2022-05-10 9:21 ` zimmerma+gcc at loria dot fr 5 siblings, 0 replies; 7+ messages in thread From: zimmerma+gcc at loria dot fr @ 2022-05-10 9:21 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=16503 Paul Zimmermann <zimmerma+gcc at loria dot fr> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zimmerma+gcc at loria dot fr --- Comment #2 from Paul Zimmermann <zimmerma+gcc at loria dot fr> --- is that still the case now that #13304 is fixed? -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-05-10 9:21 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-01-25 2:12 [Bug math/16503] New: [SH] wrong results on fma kkojima at rr dot iij4u.or.jp 2014-01-25 2:14 ` [Bug math/16503] " kkojima at rr dot iij4u.or.jp 2014-01-27 0:05 ` [Bug math/16503] [SH] wrong results on fma_towardzero kkojima at rr dot iij4u.or.jp 2014-02-06 18:40 ` [Bug math/16503] [sh] " jsm28 at gcc dot gnu.org 2014-06-13 8:51 ` fweimer at redhat dot com 2014-06-20 22:58 ` olegendo at gcc dot gnu.org 2022-05-10 9:21 ` zimmerma+gcc at loria dot fr
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).