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* [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
@ 2023-08-18 9:37 slyfox at gcc dot gnu.org
2023-08-18 10:03 ` [Bug target/111060] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: slyfox at gcc dot gnu.org @ 2023-08-18 9:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
Bug ID: 111060
Summary: [14 Regression] i686-linux bootstrap failure:
i686-unknown-linux-gnu/libstdc++-v3/include/limits:198
6:1: error: SSE register return with SSE2 disabled
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at gcc dot gnu.org
Target Milestone: ---
Noticed bootstrap failure on r14-3320-g7f8d730a563983 today:
$ ~/dev/git/gcc/configure --build=i686-unknown-linux-gnu
--host=i686-unknown-linux-gnu --target=i686-unknown-linux-gnu && make
...
/tmp/gb/./gcc/xgcc -shared-libgcc -B/tmp/gb/./gcc -nostdinc++
-L/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/src
-L/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-B/usr/local/i686-unknown-linux-gnu/bin/
-B/usr/local/i686-unknown-linux-gnu/lib/ -isystem
/usr/local/i686-unknown-linux-gnu/include -isystem
/usr/local/i686-unknown-linux-gnu/sys-include -fno-checking -x c++-header
-nostdinc++ -g -O2 -D_GNU_SOURCE
-I/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/include/i686-unknown-linux-gnu
-I/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/include
-I/home/slyfox/dev/git/gcc/libstdc++-v3/libsupc++ -O2 -g -std=gnu++0x
/home/slyfox/dev/git/gcc/libstdc++-v3/include/precompiled/stdc++.h \
-o i686-unknown-linux-gnu/bits/stdc++.h.gch/O2ggnu++0x.gch
In file included from
/home/slyfox/dev/git/gcc/libstdc++-v3/include/precompiled/stdc++.h:55:
/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/include/limits: In static member
function 'static constexpr _Float16 std::numeric_limits<_Float16>::min()':
/tmp/gb/i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE
register return with SSE2 disabled
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
@ 2023-08-18 10:03 ` rguenth at gcc dot gnu.org
2023-08-18 11:39 ` redi at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-08-18 10:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
2023-08-18 10:03 ` [Bug target/111060] " rguenth at gcc dot gnu.org
@ 2023-08-18 11:39 ` redi at gcc dot gnu.org
2023-08-18 12:48 ` redi at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2023-08-18 11:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Last reconfirmed| |2023-08-18
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Ah, looks like the 16-bit types still need to be enabled conditionally.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
2023-08-18 10:03 ` [Bug target/111060] " rguenth at gcc dot gnu.org
2023-08-18 11:39 ` redi at gcc dot gnu.org
@ 2023-08-18 12:48 ` redi at gcc dot gnu.org
2023-08-18 14:38 ` slyfox at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2023-08-18 12:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Created attachment 55756
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55756&action=edit
Revert pre-C++23 support for 16-bit float types
I'll test this patch as soon as I can get an i686 system set up.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
` (2 preceding siblings ...)
2023-08-18 12:48 ` redi at gcc dot gnu.org
@ 2023-08-18 14:38 ` slyfox at gcc dot gnu.org
2023-08-18 22:49 ` cvs-commit at gcc dot gnu.org
2023-08-18 22:51 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: slyfox at gcc dot gnu.org @ 2023-08-18 14:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
--- Comment #3 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
The patch fixed gcc buid on i686-linux for me. Thank you!
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
` (3 preceding siblings ...)
2023-08-18 14:38 ` slyfox at gcc dot gnu.org
@ 2023-08-18 22:49 ` cvs-commit at gcc dot gnu.org
2023-08-18 22:51 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-08-18 22:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:
https://gcc.gnu.org/g:27d0cfcb2b33de07351d9cb26f62d04d7416716c
commit r14-3329-g27d0cfcb2b33de07351d9cb26f62d04d7416716c
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Fri Aug 18 13:10:15 2023 +0100
libstdc++: Revert pre-C++23 support for 16-bit float types [PR111060]
In r14-3304-g1a566fddea212a and r14-3305-g6cf214b4fc97f5 I tried to
enable std::format for 16-bit float types before C++23. This causes
errors for targets where the types are defined but can't actually be
used, e.g. i686 without sse2.
Make the std::numeric_limits and std::formatter specializations for
_Float16 and __bfloat16_t depend on the __STDCPP_FLOAT16_T__ and
__STDCPP_BFLOAT16_T__ macros again, so they're only defined for C++23
when the type is fully supported. This is OK because the main point of
my earlier commits was to add better support for _Float32 and _Float64.
It seems fine for the new 16-bit types to only be supported for C++23,
as they were never present before GCC 13 anyway.
libstdc++-v3/ChangeLog:
PR target/111060
* include/std/format (formatter): Only define specializations
for 16-bit floating-point types for C++23.
* include/std/limits (numeric_limits): Likewise.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/111060] [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled
2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
` (4 preceding siblings ...)
2023-08-18 22:49 ` cvs-commit at gcc dot gnu.org
@ 2023-08-18 22:51 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2023-08-18 22:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111060
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed, thanks for the report.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-08-18 22:51 UTC | newest]
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2023-08-18 9:37 [Bug target/111060] New: [14 Regression] i686-linux bootstrap failure: i686-unknown-linux-gnu/libstdc++-v3/include/limits:1986:1: error: SSE register return with SSE2 disabled slyfox at gcc dot gnu.org
2023-08-18 10:03 ` [Bug target/111060] " rguenth at gcc dot gnu.org
2023-08-18 11:39 ` redi at gcc dot gnu.org
2023-08-18 12:48 ` redi at gcc dot gnu.org
2023-08-18 14:38 ` slyfox at gcc dot gnu.org
2023-08-18 22:49 ` cvs-commit at gcc dot gnu.org
2023-08-18 22:51 ` redi at gcc dot gnu.org
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