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* [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076
@ 2022-09-07 17:20 gscfq@t-online.de
2022-09-07 19:42 ` [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e marxin at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: gscfq@t-online.de @ 2022-09-07 17:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Bug ID: 106877
Summary: [12/13 Regression] ICE in move_for_stack_reg, at
reg-stack.cc:1076
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Started with r12 before 20210502, at -O or -O1,
with file g++.dg/ext/pr84683.C or pr84828.C :
$ g++-13-20220904 -c pr84683.C -O1 -m16 -mtune=sandybridge
-flive-range-shrinkage -fno-dce
pr84683.C: In function 'void foo(float, double)':
pr84683.C:10:7: error: output constraint 0 must specify a single register
10 | asm volatile ("" : "+f" (c)); // { dg-error "must specify a
single register" }
| ^~~
during RTL pass: stack
pr84683.C:13:1: internal compiler error: in move_for_stack_reg, at
reg-stack.cc:1076
13 | }
| ^
0x11163b0 move_for_stack_reg
../../gcc/reg-stack.cc:1076
0x1117aca subst_stack_regs
../../gcc/reg-stack.cc:2457
0x1117c78 convert_regs_1
../../gcc/reg-stack.cc:3091
0x1117c78 convert_regs_2
../../gcc/reg-stack.cc:3225
0x1119b88 convert_regs
../../gcc/reg-stack.cc:3260
0x1119b88 reg_to_stack
../../gcc/reg-stack.cc:3385
0x1119b88 rest_of_handle_stack_regs
../../gcc/reg-stack.cc:3441
0x1119b88 execute
../../gcc/reg-stack.cc:3473
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
@ 2022-09-07 19:42 ` marxin at gcc dot gnu.org
2022-09-08 1:27 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-09-07 19:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Summary|[12/13 Regression] ICE in |[12/13 Regression] ICE in
|move_for_stack_reg, at |move_for_stack_reg, at
|reg-stack.cc:1076 |reg-stack.cc:1076 since
| |r12-248-gb58dc0b803057c0e
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-09-07
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r12-248-gb58dc0b803057c0e.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
2022-09-07 19:42 ` [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e marxin at gcc dot gnu.org
@ 2022-09-08 1:27 ` pinskia at gcc dot gnu.org
2022-09-08 9:33 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-09-08 1:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #1)
> Started with r12-248-gb58dc0b803057c0e.
Obvious this just exposed the issue ...
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
2022-09-07 19:42 ` [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e marxin at gcc dot gnu.org
2022-09-08 1:27 ` pinskia at gcc dot gnu.org
@ 2022-09-08 9:33 ` rguenth at gcc dot gnu.org
2022-09-13 10:05 ` roger at nextmovesoftware dot com
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-08 9:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.3
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
` (2 preceding siblings ...)
2022-09-08 9:33 ` rguenth at gcc dot gnu.org
@ 2022-09-13 10:05 ` roger at nextmovesoftware dot com
2022-09-13 18:50 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: roger at nextmovesoftware dot com @ 2022-09-13 10:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |roger at nextmovesoftware dot com
Assignee|unassigned at gcc dot gnu.org |roger at nextmovesoftware dot com
--- Comment #3 from Roger Sayle <roger at nextmovesoftware dot com> ---
Patch proposed
https://gcc.gnu.org/pipermail/gcc-patches/2022-September/601526.html
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
` (3 preceding siblings ...)
2022-09-13 10:05 ` roger at nextmovesoftware dot com
@ 2022-09-13 18:50 ` cvs-commit at gcc dot gnu.org
2022-10-19 5:56 ` [Bug target/106877] [12 " rguenth at gcc dot gnu.org
2022-12-23 17:19 ` roger at nextmovesoftware dot com
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-09-13 18:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Roger Sayle <sayle@gcc.gnu.org>:
https://gcc.gnu.org/g:ff85f0afc7d5684378944f88a9bc9b931034788b
commit r13-2653-gff85f0afc7d5684378944f88a9bc9b931034788b
Author: Roger Sayle <roger@nextmovesoftware.com>
Date: Tue Sep 13 19:49:20 2022 +0100
PR target/106877: Robustify reg-stack to malformed asm.
This patch resolves PR target/106877 an ICE-on-invalid inline-asm
regression. An innocent upstream change means that the test case
from PR inline-asm/84683 now hits a different assert in reg-stack.cc's
move_for_stack_reg. Fixed by duplicating Jakub's solution to PR 84683
https://gcc.gnu.org/pipermail/gcc-patches/2018-March/495193.html at
this second (similar) gcc_assert.
2022-09-13 Roger Sayle <roger@nextmovesoftware.com>
gcc/ChangeLog
PR target/106877
* reg-stack.cc (move_for_stack_reg): Check for any_malformed_asm
in gcc_assert.
gcc/testsuite/ChangeLog
PR target/106877
* g++.dg/ext/pr106877.C: New test case.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
` (4 preceding siblings ...)
2022-09-13 18:50 ` cvs-commit at gcc dot gnu.org
@ 2022-10-19 5:56 ` rguenth at gcc dot gnu.org
2022-12-23 17:19 ` roger at nextmovesoftware dot com
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-10-19 5:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[12/13 Regression] ICE in |[12 Regression] ICE in
|move_for_stack_reg, at |move_for_stack_reg, at
|reg-stack.cc:1076 since |reg-stack.cc:1076 since
|r12-248-gb58dc0b803057c0e |r12-248-gb58dc0b803057c0e
Priority|P3 |P4
Known to work| |13.0
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk sofar.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/106877] [12 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e
2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
` (5 preceding siblings ...)
2022-10-19 5:56 ` [Bug target/106877] [12 " rguenth at gcc dot gnu.org
@ 2022-12-23 17:19 ` roger at nextmovesoftware dot com
6 siblings, 0 replies; 8+ messages in thread
From: roger at nextmovesoftware dot com @ 2022-12-23 17:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106877
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|12.3 |13.0
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #6 from Roger Sayle <roger at nextmovesoftware dot com> ---
Please let me know if you'd like this backported to the gcc-12 release branch,
but I'm assuming that a low priority ICE-on-invalid means we can now consider
this closed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2022-09-07 17:20 [Bug c++/106877] New: [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 gscfq@t-online.de
2022-09-07 19:42 ` [Bug target/106877] [12/13 Regression] ICE in move_for_stack_reg, at reg-stack.cc:1076 since r12-248-gb58dc0b803057c0e marxin at gcc dot gnu.org
2022-09-08 1:27 ` pinskia at gcc dot gnu.org
2022-09-08 9:33 ` rguenth at gcc dot gnu.org
2022-09-13 10:05 ` roger at nextmovesoftware dot com
2022-09-13 18:50 ` cvs-commit at gcc dot gnu.org
2022-10-19 5:56 ` [Bug target/106877] [12 " rguenth at gcc dot gnu.org
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