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* [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
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