public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c/96253] New: decimal floating point missing on ARM
@ 2020-07-20 20:23 tydeman at tybor dot com
2020-07-20 21:12 ` [Bug c/96253] " joseph at codesourcery dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: tydeman at tybor dot com @ 2020-07-20 20:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
Bug ID: 96253
Summary: decimal floating point missing on ARM
Product: gcc
Version: 9.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: tydeman at tybor dot com
Target Milestone: ---
Based on the output of "gcc $CFLAGS -E -dM hello.c", I see that most of the
_Decimal32/64/128 related values are defined for ARM -std=gnu2x
-mcpu=cortex-a72 when I use gcc 9.3.0 on an ARM based computer. Yet, when I
try to use _Decimal32/64/128 as a floating-point type, I get the error:
decimal floating point not supported for this target. Assuming decimal
floating point is supported for some version of ARM, what command line options
(or other things) do I need to get it? It would be nice if the online gcc
documentation said which targets do support decimal floating point.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/96253] decimal floating point missing on ARM
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
@ 2020-07-20 21:12 ` joseph at codesourcery dot com
2020-07-21 6:59 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: joseph at codesourcery dot com @ 2020-07-20 21:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
DFP is not supported for either AArch32 or AArch64; nor do the respective
ABI documents say what the ABI would be for it (though a GCC patch for the
AArch64 case was submitted in
<https://gcc.gnu.org/legacy-ml/gcc-patches/2017-07/msg00788.html>). GCC
supports DFP for x86_64 / x86, powerpc and S/390 (x86_64 / x86 using BID
format, the others using DPD).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/96253] decimal floating point missing on ARM
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
2020-07-20 21:12 ` [Bug c/96253] " joseph at codesourcery dot com
@ 2020-07-21 6:59 ` rguenth at gcc dot gnu.org
2021-06-18 16:48 ` [Bug target/96253] " pinskia at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-07-21 6:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Target| |aarch64, arm
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/96253] decimal floating point missing on ARM
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
2020-07-20 21:12 ` [Bug c/96253] " joseph at codesourcery dot com
2020-07-21 6:59 ` rguenth at gcc dot gnu.org
@ 2021-06-18 16:48 ` pinskia at gcc dot gnu.org
2021-06-18 16:48 ` pinskia at gcc dot gnu.org
2023-11-19 4:37 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-06-18 16:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |caparson at uwaterloo dot ca
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 101128 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/96253] decimal floating point missing on ARM
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
` (2 preceding siblings ...)
2021-06-18 16:48 ` [Bug target/96253] " pinskia at gcc dot gnu.org
@ 2021-06-18 16:48 ` pinskia at gcc dot gnu.org
2023-11-19 4:37 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-06-18 16:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-06-18
Ever confirmed|0 |1
Keywords| |ABI
Status|UNCONFIRMED |NEW
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/96253] decimal floating point missing on ARM
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
` (3 preceding siblings ...)
2021-06-18 16:48 ` pinskia at gcc dot gnu.org
@ 2023-11-19 4:37 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-19 4:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96253
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|aarch64, arm |arm
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
aarch64 support was added in GCC 13 (via r13-679-gafd82c104b1038 and a few
others) .
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-11-19 4:37 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-20 20:23 [Bug c/96253] New: decimal floating point missing on ARM tydeman at tybor dot com
2020-07-20 21:12 ` [Bug c/96253] " joseph at codesourcery dot com
2020-07-21 6:59 ` rguenth at gcc dot gnu.org
2021-06-18 16:48 ` [Bug target/96253] " pinskia at gcc dot gnu.org
2021-06-18 16:48 ` pinskia at gcc dot gnu.org
2023-11-19 4:37 ` pinskia at gcc dot gnu.org
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).