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* [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad
@ 2004-03-01 1:29 hp at gcc dot gnu dot org
2004-03-01 1:30 ` [Bug other/14354] " hp at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-03-01 1:29 UTC (permalink / raw)
To: gcc-bugs
See test-case in patch referenced soon. All hardware (including i387) I have
access to get these numbers "right" (less than 0.5ulp error) on multiplication.
--
Summary: Precision of subnormal single-precision multiplication
in fp-bit.c bad
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: other
AssignedTo: hp at gcc dot gnu dot org
ReportedBy: hp at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: cris-* mn10300-elf sh-elf v850-elf m32r-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug other/14354] Precision of subnormal single-precision multiplication in fp-bit.c bad
2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
@ 2004-03-01 1:30 ` hp at gcc dot gnu dot org
2004-03-01 2:46 ` hp at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-03-01 1:30 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-03-01 01:30:54
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug other/14354] Precision of subnormal single-precision multiplication in fp-bit.c bad
2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
2004-03-01 1:30 ` [Bug other/14354] " hp at gcc dot gnu dot org
@ 2004-03-01 2:46 ` hp at gcc dot gnu dot org
2004-03-05 0:46 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-03-01 2:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From hp at gcc dot gnu dot org 2004-03-01 02:46 -------
Patch and testcase at
<URL:http://gcc.gnu.org/ml/gcc-patches/2004-03/msg00003.html>.
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
Target Milestone|--- |3.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug other/14354] Precision of subnormal single-precision multiplication in fp-bit.c bad
2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
2004-03-01 1:30 ` [Bug other/14354] " hp at gcc dot gnu dot org
2004-03-01 2:46 ` hp at gcc dot gnu dot org
@ 2004-03-05 0:46 ` cvs-commit at gcc dot gnu dot org
2004-03-05 0:49 ` cvs-commit at gcc dot gnu dot org
2004-03-05 0:52 ` hp at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-03-05 0:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-03-05 00:46 -------
Subject: Bug 14354
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: hp@gcc.gnu.org 2004-03-05 00:46:06
Modified files:
gcc/testsuite : ChangeLog
Log message:
Forgot to mark PR for <URL:http://gcc.gnu.org/ml/gcc-cvs/2004-03/msg00238.html>.
PR other/14354
* gcc.c-torture/execute/ieee/mul-subnormal-single-1.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3570&r2=1.3571
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug other/14354] Precision of subnormal single-precision multiplication in fp-bit.c bad
2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
` (2 preceding siblings ...)
2004-03-05 0:46 ` cvs-commit at gcc dot gnu dot org
@ 2004-03-05 0:49 ` cvs-commit at gcc dot gnu dot org
2004-03-05 0:52 ` hp at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-03-05 0:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-03-05 00:49 -------
Subject: Bug 14354
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: hp@gcc.gnu.org 2004-03-05 00:49:22
Modified files:
gcc : ChangeLog
Log message:
Forgot to mark PR for <URL:http://gcc.gnu.org/ml/gcc-cvs/2004-03/msg00237.html>
PR other/14354
* config/fp-bit.c (_fpdiv_parts): Do not round when pack_d would
round the same. When rounding, clear bits that would cause a
second rounding in pack_d.
(_fpmul_parts): Ditto. Remove #if 0:d code.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3051&r2=2.3052
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug other/14354] Precision of subnormal single-precision multiplication in fp-bit.c bad
2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
` (3 preceding siblings ...)
2004-03-05 0:49 ` cvs-commit at gcc dot gnu dot org
@ 2004-03-05 0:52 ` hp at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-03-05 0:52 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From hp at gcc dot gnu dot org 2004-03-05 00:52 -------
Testcase and fix committed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14354
^ permalink raw reply [flat|nested] 6+ messages in thread
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2004-03-01 1:29 [Bug other/14354] New: Precision of subnormal single-precision multiplication in fp-bit.c bad hp at gcc dot gnu dot org
2004-03-01 1:30 ` [Bug other/14354] " hp at gcc dot gnu dot org
2004-03-01 2:46 ` hp at gcc dot gnu dot org
2004-03-05 0:46 ` cvs-commit at gcc dot gnu dot org
2004-03-05 0:49 ` cvs-commit at gcc dot gnu dot org
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