* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534'
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
@ 2023-10-28 21:03 ` pinskia at gcc dot gnu.org
2023-10-28 21:04 ` pinskia at gcc dot gnu.org
` (15 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-28 21:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534'
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
2023-10-28 21:03 ` [Bug c++/112269] " pinskia at gcc dot gnu.org
@ 2023-10-28 21:04 ` pinskia at gcc dot gnu.org
2023-10-29 8:37 ` schwab@linux-m68k.org
` (14 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-28 21:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect this is excess-precision related.
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534'
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
2023-10-28 21:03 ` [Bug c++/112269] " pinskia at gcc dot gnu.org
2023-10-28 21:04 ` pinskia at gcc dot gnu.org
@ 2023-10-29 8:37 ` schwab@linux-m68k.org
2023-10-29 9:46 ` schwab@linux-m68k.org
` (13 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: schwab@linux-m68k.org @ 2023-10-29 8:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|x86_64 i?86 |x86_64 i?86 m68k-*-*
--- Comment #2 from Andreas Schwab <schwab@linux-m68k.org> ---
Similar failures on m68k.
g++.dg/cpp0x/initlist13.C -std=c++20 (internal compiler error: in tsubst_expr,
at cp/pt.cc:21534)
g++.dg/cpp0x/udlit-general.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/cpp1y/complex_literals1.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/cpp1y/udlit-userdef-string.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-header-5_a.H -std=c++2a (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-header-5_a.H -std=c++2b (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-header_a.H -std=c++2a (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-header_a.H -std=c++2b (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-tr1_a.H -std=c++2a (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/modules/xtreme-tr1_a.H -std=c++2b (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.dg/opt/nrv17.C -std=c++20 (internal compiler error: in tsubst_expr, at
cp/pt.cc:21534)
g++.old-deja/g++.brendan/crash20.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.old-deja/g++.law/ctors6.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.old-deja/g++.law/operators4.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.old-deja/g++.other/headers1.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
g++.old-deja/g++.robertl/eb3.C -std=c++20 (internal compiler error: in
tsubst_expr, at cp/pt.cc:21534)
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534'
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (2 preceding siblings ...)
2023-10-29 8:37 ` schwab@linux-m68k.org
@ 2023-10-29 9:46 ` schwab@linux-m68k.org
2023-10-29 16:33 ` [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7 pinskia at gcc dot gnu.org
` (12 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: schwab@linux-m68k.org @ 2023-10-29 9:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppalka at gcc dot gnu.org
--- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> ---
Bisected to commit 3e3d73ed5e85
Author: Patrick Palka <ppalka@redhat.com>
Date: Fri Oct 20 11:21:54 2023 -0400
c++: merge tsubst_copy into tsubst_copy_and_build
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (3 preceding siblings ...)
2023-10-29 9:46 ` schwab@linux-m68k.org
@ 2023-10-29 16:33 ` pinskia at gcc dot gnu.org
2023-10-30 16:19 ` ppalka at gcc dot gnu.org
` (11 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-29 16:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-10-29
Keywords| |needs-reduction
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #2)
> Similar failures on m68k.
That gives more evidence that is excess-precision related really.
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (4 preceding siblings ...)
2023-10-29 16:33 ` [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7 pinskia at gcc dot gnu.org
@ 2023-10-30 16:19 ` ppalka at gcc dot gnu.org
2023-10-31 8:17 ` tschwinge at gcc dot gnu.org
` (10 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-10-30 16:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
I can't reproduce any of these testsuite failures on trunk with x86_64 -m32...
could you provide a preprocessed source file perhaps?
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (5 preceding siblings ...)
2023-10-30 16:19 ` ppalka at gcc dot gnu.org
@ 2023-10-31 8:17 ` tschwinge at gcc dot gnu.org
2023-10-31 14:58 ` ppalka at gcc dot gnu.org
` (9 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: tschwinge at gcc dot gnu.org @ 2023-10-31 8:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #6 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
Created attachment 56479
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56479&action=edit
'initlist13.ii.xz'
(In reply to Patrick Palka from comment #5)
> I can't reproduce any of these testsuite failures on trunk with x86_64
> -m32... could you provide a preprocessed source file perhaps?
Sure; I'm attaching 'testsuite/g++.dg/cpp0x/initlist13.C' (picked at random;
not yet reduced):
$ build-gcc/gcc/cc1plus -fpreprocessed initlist13.ii -quiet -m32
-mtune=generic -march=x86-64 -pedantic-errors -Wno-long-long -std=c++20 -o
initlist13.s
In file included from
[...]/source-gcc/gcc/testsuite/g++.dg/cpp0x/initlist13.C:4:
[...]/build-gcc/x86_64-pc-linux-gnu/32/libstdc++-v3/include/complex: In
member function ‘constexpr std::complex<float>&
std::complex<float>::operator/=(const std::complex<_Tp>&)’:
[...]/build-gcc/x86_64-pc-linux-gnu/32/libstdc++-v3/include/complex:1493:16:
internal compiler error: in tsubst_expr, at cp/pt.cc:21534
[...]
For avoidance of doubt:
(In reply to Andreas Schwab from comment #2)
> Similar failures on m68k.
>
> g++[...]
..., indeed I'm seeing similar C++ front end testing regressions -- I just had
not yet looked into those test results when I filed this issue.
PASS: g++.dg/cpp0x/initlist13.C -std=c++14 (test for excess errors)
PASS: g++.dg/cpp0x/initlist13.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.dg/cpp0x/initlist13.C -std=c++20 (internal compiler
error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/cpp0x/initlist13.C -std=c++20 (test for excess errors)
UNSUPPORTED: g++.dg/cpp0x/initlist13.C -std=c++98
@@ -330299,8 +332283,9 @@ PASS: g++.dg/cpp0x/udlit-general.C -std=c++14
(test for excess errors)
PASS: g++.dg/cpp0x/udlit-general.C -std=c++14 execution test
PASS: g++.dg/cpp0x/udlit-general.C -std=c++17 (test for excess errors)
PASS: g++.dg/cpp0x/udlit-general.C -std=c++17 execution test
[-PASS:-]{+FAIL: g++.dg/cpp0x/udlit-general.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/cpp0x/udlit-general.C -std=c++20 (test for excess errors)
[-PASS:-]{+UNRESOLVED:+} g++.dg/cpp0x/udlit-general.C -std=c++20
[-execution test-]{+compilation failed to produce executable+}
UNSUPPORTED: g++.dg/cpp0x/udlit-general.C -std=c++98
PASS: g++.dg/cpp1y/complex_literals1.C -std=c++14 (test for excess errors)
PASS: g++.dg/cpp1y/complex_literals1.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.dg/cpp1y/complex_literals1.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/cpp1y/complex_literals1.C -std=c++20 (test for excess
errors)
UNSUPPORTED: g++.dg/cpp1y/complex_literals1.C -std=c++98
PASS: g++.dg/cpp1y/udlit-userdef-string.C -std=c++14 (test for excess
errors)
PASS: g++.dg/cpp1y/udlit-userdef-string.C -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL: g++.dg/cpp1y/udlit-userdef-string.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/cpp1y/udlit-userdef-string.C -std=c++20 (test for excess
errors)
UNSUPPORTED: g++.dg/cpp1y/udlit-userdef-string.C -std=c++98
@@ -379174,8 +381318,9 @@ PASS: g++.dg/opt/nrv17.C -std=c++14 (test for
excess errors)
PASS: g++.dg/opt/nrv17.C -std=c++14 execution test
PASS: g++.dg/opt/nrv17.C -std=c++17 (test for excess errors)
PASS: g++.dg/opt/nrv17.C -std=c++17 execution test
[-PASS:-]{+FAIL: g++.dg/opt/nrv17.C -std=c++20 (internal compiler error:
in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/opt/nrv17.C -std=c++20 (test for excess errors)
[-PASS:-]{+UNRESOLVED:+} g++.dg/opt/nrv17.C -std=c++20 [-execution
test-]{+compilation failed to produce executable+}
PASS: g++.dg/opt/nrv17.C -std=c++98 (test for excess errors)
PASS: g++.dg/opt/nrv17.C -std=c++98 execution test
PASS: g++.dg/modules/xtreme-header-5_a.H -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-header-5_a.H -std=c++2a (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-header-5_a.H -std=c++2a (test for excess
errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-header-5_a.H -std=c++2b (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-header-5_a.H -std=c++2b (test for excess
errors)[-PASS: g++.dg/modules/xtreme-header-5_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header-5_a.H.gcm)-]
[-PASS: g++.dg/modules/xtreme-header-5_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header-5_a.H.gcm)-]
PASS: g++.dg/modules/xtreme-header-5_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header-5_a.H.gcm)
{+FAIL: g++.dg/modules/xtreme-header-5_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header-5_a.H.gcm)+}
{+FAIL: g++.dg/modules/xtreme-header-5_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header-5_a.H.gcm)+}
PASS: g++.dg/modules/xtreme-header-5_b.C -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header-5_b.C -std=c++2a (test for
excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header-5_b.C -std=c++2b (test for
excess errors)
PASS: g++.dg/modules/xtreme-header-5_c.C -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header-5_c.C -std=c++2a (test for
excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header-5_c.C -std=c++2b (test for
excess errors)
PASS: g++.dg/modules/xtreme-header_a.H -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2a (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-header_a.H -std=c++2a (test for excess
errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2b (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-header_a.H -std=c++2b (test for excess
errors)[-PASS: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)-]
[-PASS: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)-]
PASS: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)
{+FAIL: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)+}
{+FAIL: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)+}
PASS: g++.dg/modules/xtreme-header_b.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header_b.C -std=c++2a (test for
excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-header_b.C -std=c++2b (test for
excess errors)
PASS: g++.dg/modules/xtreme-tr1_a.H -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-tr1_a.H -std=c++2a (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-tr1_a.H -std=c++2a (test for excess errors)
[-PASS:-]{+FAIL: g++.dg/modules/xtreme-tr1_a.H -std=c++2b (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.dg/modules/xtreme-tr1_a.H -std=c++2b (test for excess
errors)[-PASS: g++.dg/modules/xtreme-tr1_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-tr1_a.H.gcm)-]
[-PASS: g++.dg/modules/xtreme-tr1_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-tr1_a.H.gcm)-]
PASS: g++.dg/modules/xtreme-tr1_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-tr1_a.H.gcm)
{+FAIL: g++.dg/modules/xtreme-tr1_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-tr1_a.H.gcm)+}
{+FAIL: g++.dg/modules/xtreme-tr1_a.H module-cmi
(gcm.cache/$srcdir/g++.dg/modules/xtreme-tr1_a.H.gcm)+}
PASS: g++.dg/modules/xtreme-tr1_b.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-tr1_b.C -std=c++2a (test for
excess errors)
[-PASS:-]{+FAIL:+} g++.dg/modules/xtreme-tr1_b.C -std=c++2b (test for
excess errors)
PASS: g++.old-deja/g++.brendan/crash20.C -std=c++14 (test for excess
errors)
PASS: g++.old-deja/g++.brendan/crash20.C -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL: g++.old-deja/g++.brendan/crash20.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.old-deja/g++.brendan/crash20.C -std=c++20 (test for excess
errors)
PASS: g++.old-deja/g++.brendan/crash20.C -std=c++98 (test for excess
errors)
PASS: g++.old-deja/g++.law/ctors6.C -std=c++14 (test for excess errors)
PASS: g++.old-deja/g++.law/ctors6.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.old-deja/g++.law/ctors6.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.old-deja/g++.law/ctors6.C -std=c++20 (test for excess
errors)
PASS: g++.old-deja/g++.law/ctors6.C -std=c++98 (test for excess errors)
@@ -499462,8 +502648,9 @@ PASS: g++.old-deja/g++.law/operators4.C
-std=c++14 (test for errors, line 18)
PASS: g++.old-deja/g++.law/operators4.C -std=c++14 (test for excess
errors)
PASS: g++.old-deja/g++.law/operators4.C -std=c++17 (test for errors, line
18)
PASS: g++.old-deja/g++.law/operators4.C -std=c++17 (test for excess
errors)
[-PASS:-]{+FAIL:+} g++.old-deja/g++.law/operators4.C -std=c++20 (test for
errors, line 18)
[-PASS:-]{+FAIL: g++.old-deja/g++.law/operators4.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.old-deja/g++.law/operators4.C -std=c++20 (test for excess
errors)
PASS: g++.old-deja/g++.law/operators4.C -std=c++98 (test for errors, line
18)
PASS: g++.old-deja/g++.law/operators4.C -std=c++98 (test for excess
errors)
@@ -507132,8 +510319,9 @@ PASS: g++.old-deja/g++.other/headers1.C
-std=c++14 (test for excess errors)
PASS: g++.old-deja/g++.other/headers1.C -std=c++14 execution test
PASS: g++.old-deja/g++.other/headers1.C -std=c++17 (test for excess
errors)
PASS: g++.old-deja/g++.other/headers1.C -std=c++17 execution test
[-PASS:-]{+FAIL: g++.old-deja/g++.other/headers1.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.old-deja/g++.other/headers1.C -std=c++20 (test for excess
errors)
[-PASS:-]{+UNRESOLVED:+} g++.old-deja/g++.other/headers1.C -std=c++20
[-execution test-]{+compilation failed to produce executable+}
PASS: g++.old-deja/g++.other/headers1.C -std=c++98 (test for excess
errors)
PASS: g++.old-deja/g++.other/headers1.C -std=c++98 execution test
PASS: g++.old-deja/g++.robertl/eb3.C -std=c++14 (test for excess errors)
PASS: g++.old-deja/g++.robertl/eb3.C -std=c++17 (test for excess errors)
[-PASS:-]{+FAIL: g++.old-deja/g++.robertl/eb3.C -std=c++20 (internal
compiler error: in tsubst_expr, at cp/pt.cc:21534)+}
{+FAIL:+} g++.old-deja/g++.robertl/eb3.C -std=c++20 (test for excess
errors)
PASS: g++.old-deja/g++.robertl/eb3.C -std=c++98 (test for excess errors)
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (6 preceding siblings ...)
2023-10-31 8:17 ` tschwinge at gcc dot gnu.org
@ 2023-10-31 14:58 ` ppalka at gcc dot gnu.org
2023-11-03 7:34 ` pinskia at gcc dot gnu.org
` (8 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-10-31 14:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
--- Comment #7 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Thanks a lot, I can reproduce it now. It turns out this PR and PR111703 can be
partially resolved by the same fix.
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (7 preceding siblings ...)
2023-10-31 14:58 ` ppalka at gcc dot gnu.org
@ 2023-11-03 7:34 ` pinskia at gcc dot gnu.org
2023-11-03 8:30 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-03 7:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112362 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (8 preceding siblings ...)
2023-11-03 7:34 ` pinskia at gcc dot gnu.org
@ 2023-11-03 8:30 ` rguenth at gcc dot gnu.org
2023-11-04 8:28 ` redi at gcc dot gnu.org
` (6 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-11-03 8:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (9 preceding siblings ...)
2023-11-03 8:30 ` rguenth at gcc dot gnu.org
@ 2023-11-04 8:28 ` redi at gcc dot gnu.org
2023-11-04 18:56 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: redi at gcc dot gnu.org @ 2023-11-04 8:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Patrick Palka from comment #5)
> I can't reproduce any of these testsuite failures on trunk with x86_64
> -m32... could you provide a preprocessed source file perhaps?
The libstdc++ testsuite shows lots of failures with -m32 -std=c++20
e.g.
FAIL: 23_containers/vector/48101-2_neg.cc -std=c++20 (test for errors, line )
FAIL: 23_containers/vector/48101-2_neg.cc -std=c++20 (test for excess errors)
Excess errors:
/tmp/build/x86_64-pc-linux-gnu/32/libstdc++-v3/include/complex:1493: internal
compiler error: in tsubst_expr, at cp/pt.cc:21534
0x78b9fb tsubst_expr(tree_node*, tree_node*, int, tree_node*)
/home/test/src/gcc/gcc/cp/pt.cc:21534
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (10 preceding siblings ...)
2023-11-04 8:28 ` redi at gcc dot gnu.org
@ 2023-11-04 18:56 ` pinskia at gcc dot gnu.org
2023-11-07 17:20 ` ppalka at gcc dot gnu.org
` (4 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-04 18:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-reduction |
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase (`-m32 -std=c++20` or `-m32 -fexcess-precision=standard`):
```
template <typename _Tp>
constexpr void fg(__complex__ float &n) {
const __complex__ float __t;
n /= __t;
}
```
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (11 preceding siblings ...)
2023-11-04 18:56 ` pinskia at gcc dot gnu.org
@ 2023-11-07 17:20 ` ppalka at gcc dot gnu.org
2023-11-15 17:03 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-11-07 17:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #11 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Sorry for the breakage... FWIW a patch is on review at
https://gcc.gnu.org/pipermail/gcc-patches/2023-October/634859.html
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (12 preceding siblings ...)
2023-11-07 17:20 ` ppalka at gcc dot gnu.org
@ 2023-11-15 17:03 ` cvs-commit at gcc dot gnu.org
2023-11-15 17:05 ` ppalka at gcc dot gnu.org
` (2 subsequent siblings)
16 siblings, 0 replies; 18+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-11-15 17:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:6665a8572c8f24bd55c6081c91f461442c94dcfb
commit r14-5502-g6665a8572c8f24bd55c6081c91f461442c94dcfb
Author: Patrick Palka <ppalka@redhat.com>
Date: Wed Nov 15 12:03:16 2023 -0500
c++: constantness of local var in constexpr fn [PR111703, PR112269]
potential_constant_expression was incorrectly treating most local
variables from a constexpr function as constant because it wasn't
considering the 'now' parameter. This patch fixes this by relaxing
its var_in_maybe_constexpr_fn checks accordingly, which turns out to
partially fix two recently reported regressions:
PR111703 is a regression caused by r11-550-gf65a3299a521a4 for restricting
constexpr evaluation during warning-dependent folding. The mechanism is
intended to restrict only constant evaluation of the instantiated
non-dependent expression, but it also ends up restricting constant
evaluation occurring during instantiation of the expression, in particular
when instantiating the converted argument 'x' (a VIEW_CONVERT_EXPR) into
a copy constructor call. This seems like a flaw in the mechanism, though
I don't know if we want to fix the mechanism or get rid of it completely
since the original testcases which motivated the mechanism are fixed more
simply by r13-1225-gb00b95198e6720. In any case, this patch partially
fixes this by making us correctly treat 'x' as non-constant which prevents
the problematic warning-dependent folding from occurring at all.
PR112269 is caused by r14-4796-g3e3d73ed5e85e7 for merging tsubst_copy
into tsubst_copy_and_build. tsubst_copy used to exit early when 'args'
was empty, behavior which that commit deliberately didn't preserve.
This early exit masked the fact that COMPLEX_EXPR wasn't handled by
tsubst at all, and is a tree code that apparently we could see during
warning-dependent folding on some targets. A complete fix is to add
handling for this tree code in tsubst_expr, but this patch should fix
the reported testsuite failures since the COMPLEX_EXPRs that crop up
in <complex> are considered non-constant expressions after this patch.
PR c++/111703
PR c++/112269
gcc/cp/ChangeLog:
* constexpr.cc (potential_constant_expression_1) <case VAR_DECL>:
Only consider var_in_maybe_constexpr_fn if 'now' is false.
<case INDIRECT_REF>: Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/cpp2a/concepts-fn8.C: New test.
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (13 preceding siblings ...)
2023-11-15 17:03 ` cvs-commit at gcc dot gnu.org
@ 2023-11-15 17:05 ` ppalka at gcc dot gnu.org
2023-11-24 16:56 ` cvs-commit at gcc dot gnu.org
2023-11-27 22:02 ` cvs-commit at gcc dot gnu.org
16 siblings, 0 replies; 18+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-11-15 17:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #13 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Should be fixed.
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (14 preceding siblings ...)
2023-11-15 17:05 ` ppalka at gcc dot gnu.org
@ 2023-11-24 16:56 ` cvs-commit at gcc dot gnu.org
2023-11-27 22:02 ` cvs-commit at gcc dot gnu.org
16 siblings, 0 replies; 18+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-11-24 16:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:dd57446bd90c3225ce45e8818c5b00f2e86a9607
commit r13-8097-gdd57446bd90c3225ce45e8818c5b00f2e86a9607
Author: Patrick Palka <ppalka@redhat.com>
Date: Wed Nov 15 12:03:16 2023 -0500
c++: constantness of local var in constexpr fn [PR111703, PR112269]
potential_constant_expression was incorrectly treating most local
variables from a constexpr function as constant because it wasn't
considering the 'now' parameter. This patch fixes this by relaxing
its var_in_maybe_constexpr_fn checks accordingly, which turns out to
partially fix two recently reported regressions:
PR111703 is a regression caused by r11-550-gf65a3299a521a4 for restricting
constexpr evaluation during warning-dependent folding. The mechanism is
intended to restrict only constant evaluation of the instantiated
non-dependent expression, but it also ends up restricting constant
evaluation occurring during instantiation of the expression, in particular
when instantiating the converted argument 'x' (a VIEW_CONVERT_EXPR) into
a copy constructor call. This seems like a flaw in the mechanism, though
I don't know if we want to fix the mechanism or get rid of it completely
since the original testcases which motivated the mechanism are fixed more
simply by r13-1225-gb00b95198e6720. In any case, this patch partially
fixes this by making us correctly treat 'x' as non-constant which prevents
the problematic warning-dependent folding from occurring at all.
PR112269 is caused by r14-4796-g3e3d73ed5e85e7 for merging tsubst_copy
into tsubst_copy_and_build. tsubst_copy used to exit early when 'args'
was empty, behavior which that commit deliberately didn't preserve.
This early exit masked the fact that COMPLEX_EXPR wasn't handled by
tsubst at all, and is a tree code that apparently we could see during
warning-dependent folding on some targets. A complete fix is to add
handling for this tree code in tsubst_expr, but this patch should fix
the reported testsuite failures since the COMPLEX_EXPRs that crop up
in <complex> are considered non-constant expressions after this patch.
PR c++/111703
PR c++/112269
gcc/cp/ChangeLog:
* constexpr.cc (potential_constant_expression_1) <case VAR_DECL>:
Only consider var_in_maybe_constexpr_fn if 'now' is false.
<case INDIRECT_REF>: Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/cpp2a/concepts-fn8.C: New test.
(cherry picked from commit 6665a8572c8f24bd55c6081c91f461442c94dcfb)
^ permalink raw reply [flat|nested] 18+ messages in thread* [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
2023-10-28 20:52 [Bug c++/112269] New: [14 Regression] x86_64 GNU/Linux '-m32' multilib 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr, at cp/pt.cc:21534' tschwinge at gcc dot gnu.org
` (15 preceding siblings ...)
2023-11-24 16:56 ` cvs-commit at gcc dot gnu.org
@ 2023-11-27 22:02 ` cvs-commit at gcc dot gnu.org
16 siblings, 0 replies; 18+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-11-27 22:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112269
--- Comment #15 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:6a31302a6c8bec9af3c93f736c2b1a76e9a530e2
commit r12-10016-g6a31302a6c8bec9af3c93f736c2b1a76e9a530e2
Author: Patrick Palka <ppalka@redhat.com>
Date: Wed Nov 15 12:03:16 2023 -0500
c++: constantness of local var in constexpr fn [PR111703, PR112269]
potential_constant_expression was incorrectly treating most local
variables from a constexpr function as constant because it wasn't
considering the 'now' parameter. This patch fixes this by relaxing
its var_in_maybe_constexpr_fn checks accordingly, which turns out to
partially fix two recently reported regressions:
PR111703 is a regression caused by r11-550-gf65a3299a521a4 for restricting
constexpr evaluation during warning-dependent folding. The mechanism is
intended to restrict only constant evaluation of the instantiated
non-dependent expression, but it also ends up restricting constant
evaluation occurring during instantiation of the expression, in particular
when instantiating the converted argument 'x' (a VIEW_CONVERT_EXPR) into
a copy constructor call. This seems like a flaw in the mechanism, though
I don't know if we want to fix the mechanism or get rid of it completely
since the original testcases which motivated the mechanism are fixed more
simply by r13-1225-gb00b95198e6720. In any case, this patch partially
fixes this by making us correctly treat 'x' as non-constant which prevents
the problematic warning-dependent folding from occurring at all.
PR112269 is caused by r14-4796-g3e3d73ed5e85e7 for merging tsubst_copy
into tsubst_copy_and_build. tsubst_copy used to exit early when 'args'
was empty, behavior which that commit deliberately didn't preserve.
This early exit masked the fact that COMPLEX_EXPR wasn't handled by
tsubst at all, and is a tree code that apparently we could see during
warning-dependent folding on some targets. A complete fix is to add
handling for this tree code in tsubst_expr, but this patch should fix
the reported testsuite failures since the COMPLEX_EXPRs that crop up
in <complex> are considered non-constant expressions after this patch.
PR c++/111703
PR c++/112269
gcc/cp/ChangeLog:
* constexpr.cc (potential_constant_expression_1) <case VAR_DECL>:
Only consider var_in_maybe_constexpr_fn if 'now' is false.
<case INDIRECT_REF>: Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/cpp2a/concepts-fn8.C: New test.
(cherry picked from commit 6665a8572c8f24bd55c6081c91f461442c94dcfb)
^ permalink raw reply [flat|nested] 18+ messages in thread