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* [Bug c/54355] New: ICE on invalid code in switch statement
@ 2012-08-23 9:48 jay.foad at gmail dot com
2012-08-23 11:22 ` [Bug c/54355] " jakub at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: jay.foad at gmail dot com @ 2012-08-23 9:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Bug #: 54355
Summary: ICE on invalid code in switch statement
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jay.foad@gmail.com
Created attachment 28067
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28067
test case
On the attached test case I get:
$ cc1 reduced.c
f
reduced.c: In function 'f':
reduced.c:5:1: error: a label can only be part of a statement and a declaration
is not a statement
a b >
^
reduced.c:5:1: error: unknown type name 'a'
reduced.c:5:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before
'>' token
a b >
^
reduced.c:5:5: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
I'm using trunk revision 190616 on x86_64-unknown-linux-gnu.
Credit: test case was reduced by C-Reduce: http://embed.cs.utah.edu/creduce/
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
@ 2012-08-23 11:22 ` jakub at gcc dot gnu.org
2012-08-23 11:24 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-08-23 11:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
CC| |jakub at gcc dot gnu.org
Target Milestone|--- |4.8.0
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
2012-08-23 11:22 ` [Bug c/54355] " jakub at gcc dot gnu.org
@ 2012-08-23 11:24 ` jakub at gcc dot gnu.org
2012-08-23 11:57 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-08-23 11:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2012-08-23
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-23 11:24:36 UTC ---
Created attachment 28068
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28068
gcc48-pr54355.patch
Untested fix.
While for the nested case c_push_function_context/c_pop_function_context around
start_function restores the globals on failure, for the !nested case which
includes extern fn decls (or suspected extern fn decls) nothing restores them.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
2012-08-23 11:22 ` [Bug c/54355] " jakub at gcc dot gnu.org
2012-08-23 11:24 ` jakub at gcc dot gnu.org
@ 2012-08-23 11:57 ` jakub at gcc dot gnu.org
2012-08-24 21:45 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-08-23 11:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #28068|0 |1
is obsolete| |
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-23 11:56:51 UTC ---
Created attachment 28073
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28073
gcc48-pr54355.patch
Actually, it seems the comments added in PR29062 disagree with what is actually
passed, two arguments are swapped. Dunno about the best empty_ok value in that
case, but certainly nested should be true, we are definitely inside of a
function already.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
` (2 preceding siblings ...)
2012-08-23 11:57 ` jakub at gcc dot gnu.org
@ 2012-08-24 21:45 ` jakub at gcc dot gnu.org
2013-03-22 14:43 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-08-24 21:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-24 21:45:28 UTC ---
Author: jakub
Date: Fri Aug 24 21:45:22 2012
New Revision: 190656
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190656
Log:
PR c/54355
* c-decl.c (c_parser_label): Pass true as nested and fix up comments
for nested and empty_ok arguments in the call to
c_parser_declaration_or_fndef.
* gcc.dg/pr54355.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr54355.c
Modified:
trunk/gcc/c/ChangeLog
trunk/gcc/c/c-parser.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
` (3 preceding siblings ...)
2012-08-24 21:45 ` jakub at gcc dot gnu.org
@ 2013-03-22 14:43 ` jakub at gcc dot gnu.org
2013-05-31 10:58 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-03-22 14:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.0 |4.8.1
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-22 14:42:48 UTC ---
GCC 4.8.0 is being released, adjusting target milestone.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
` (4 preceding siblings ...)
2013-03-22 14:43 ` jakub at gcc dot gnu.org
@ 2013-05-31 10:58 ` jakub at gcc dot gnu.org
2013-10-16 9:51 ` jakub at gcc dot gnu.org
2013-10-17 20:17 ` mpolacek at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-05-31 10:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.1 |4.8.2
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.8.1 has been released.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
` (5 preceding siblings ...)
2013-05-31 10:58 ` jakub at gcc dot gnu.org
@ 2013-10-16 9:51 ` jakub at gcc dot gnu.org
2013-10-17 20:17 ` mpolacek at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-10-16 9:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.2 |4.8.3
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.8.2 has been released.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c/54355] ICE on invalid code in switch statement
2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
` (6 preceding siblings ...)
2013-10-16 9:51 ` jakub at gcc dot gnu.org
@ 2013-10-17 20:17 ` mpolacek at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-10-17 20:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54355
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
CC| |mpolacek at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed in 4.8/trunk, I don't think we want to backport it into 4.7.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2012-08-23 9:48 [Bug c/54355] New: ICE on invalid code in switch statement jay.foad at gmail dot com
2012-08-23 11:22 ` [Bug c/54355] " jakub at gcc dot gnu.org
2012-08-23 11:24 ` jakub at gcc dot gnu.org
2012-08-23 11:57 ` jakub at gcc dot gnu.org
2012-08-24 21:45 ` jakub at gcc dot gnu.org
2013-03-22 14:43 ` jakub at gcc dot gnu.org
2013-05-31 10:58 ` jakub at gcc dot gnu.org
2013-10-16 9:51 ` jakub at gcc dot gnu.org
2013-10-17 20:17 ` mpolacek at gcc dot gnu.org
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