public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c/37183] New: ice in df_ref_chain_change_bb
@ 2008-08-21 2:24 regehr at cs dot utah dot edu
2008-12-27 6:17 ` [Bug rtl-optimization/37183] [4.4 Regression] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: regehr at cs dot utah dot edu @ 2008-08-21 2:24 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2185 bytes --]
This is seen using r139367 on Ubuntu Hardy on ia32. Also see bug 36984.
regehr@john-home:~/volatile/tmp9$ current-gcc -O3 small.c
small.c: In function func_2:
small.c:24: internal compiler error: in df_ref_chain_change_bb, at
df-scan.c:1828
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
regehr@john-home:~/volatile/tmp9$ current-gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --program-prefix=current-
--enable-languages=c,c++ --prefix=/home/regehr : (reconfigured) ../configure
--program-prefix=current- --enable-languages=c,c++ --prefix=/home/regehr :
(reconfigured) ../configure --program-prefix=current- --enable-languages=c,c++
--prefix=/home/regehr
Thread model: posix
gcc version 4.4.0 20080821 (experimental) (GCC)
regehr@john-home:~/volatile/tmp9$ cat small.c
typedef signed char int8_t;
typedef int int32_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;
static inline unsigned long int
div_rhs (long int rhs)
{
if (rhs)
return 1;
return rhs;
}
uint32_t g_65;
int32_t g_122;
int32_t func_64 (uint32_t p_66, uint16_t p_67);
int32_t func_86 (uint16_t p_87);
int32_t func_88 (uint16_t p_89);
int32_t
func_2 (int8_t p_4)
{
int32_t l_450;
for (l_450 = 0; (l_450 < 8); ++l_450)
func_43 (func_60 (func_64 (func_86 (1), 1), 1), 1, 1);
}
int32_t
func_64 (uint32_t p_66, uint16_t p_67)
{
for (g_65 = 0; 0; ++g_65)
{
}
}
int32_t
func_86 (uint16_t p_87)
{
func_88 (g_122);
}
int32_t
func_88 (uint16_t p_89)
{
if (0 / div_rhs (func_91 (1, 1)))
{
}
else if (p_89)
for (g_65 = 1; 1; g_65 -= 1)
return 1;
}
--
Summary: ice in df_ref_chain_change_bb
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: regehr at cs dot utah dot edu
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37183
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/37183] [4.4 Regression] ice in df_ref_chain_change_bb
2008-08-21 2:24 [Bug c/37183] New: ice in df_ref_chain_change_bb regehr at cs dot utah dot edu
@ 2008-12-27 6:17 ` pinskia at gcc dot gnu dot org
2008-12-28 19:49 ` regehr at cs dot utah dot edu
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-12-27 6:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2008-12-27 06:15 -------
Can you reproduce this now?
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Keywords| |ice-on-valid-code
Summary|ice in |[4.4 Regression] ice in
|df_ref_chain_change_bb |df_ref_chain_change_bb
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37183
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/37183] [4.4 Regression] ice in df_ref_chain_change_bb
2008-08-21 2:24 [Bug c/37183] New: ice in df_ref_chain_change_bb regehr at cs dot utah dot edu
2008-12-27 6:17 ` [Bug rtl-optimization/37183] [4.4 Regression] " pinskia at gcc dot gnu dot org
@ 2008-12-28 19:49 ` regehr at cs dot utah dot edu
2008-12-28 20:16 ` jakub at gcc dot gnu dot org
2008-12-28 20:23 ` jakub at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: regehr at cs dot utah dot edu @ 2008-12-28 19:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from regehr at cs dot utah dot edu 2008-12-28 19:47 -------
(In reply to comment #1)
> Can you reproduce this now?
Nope-- looks fixed in r142939.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37183
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/37183] [4.4 Regression] ice in df_ref_chain_change_bb
2008-08-21 2:24 [Bug c/37183] New: ice in df_ref_chain_change_bb regehr at cs dot utah dot edu
2008-12-27 6:17 ` [Bug rtl-optimization/37183] [4.4 Regression] " pinskia at gcc dot gnu dot org
2008-12-28 19:49 ` regehr at cs dot utah dot edu
@ 2008-12-28 20:16 ` jakub at gcc dot gnu dot org
2008-12-28 20:23 ` jakub at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu dot org @ 2008-12-28 20:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jakub at gcc dot gnu dot org 2008-12-28 20:14 -------
Confirmed. The bug went away between r140768 and r142000.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37183
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/37183] [4.4 Regression] ice in df_ref_chain_change_bb
2008-08-21 2:24 [Bug c/37183] New: ice in df_ref_chain_change_bb regehr at cs dot utah dot edu
` (2 preceding siblings ...)
2008-12-28 20:16 ` jakub at gcc dot gnu dot org
@ 2008-12-28 20:23 ` jakub at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu dot org @ 2008-12-28 20:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jakub at gcc dot gnu dot org 2008-12-28 20:22 -------
Guess PR37448 (plus PR37808 follow-up).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37183
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-12-28 20:23 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-08-21 2:24 [Bug c/37183] New: ice in df_ref_chain_change_bb regehr at cs dot utah dot edu
2008-12-27 6:17 ` [Bug rtl-optimization/37183] [4.4 Regression] " pinskia at gcc dot gnu dot org
2008-12-28 19:49 ` regehr at cs dot utah dot edu
2008-12-28 20:16 ` jakub at gcc dot gnu dot org
2008-12-28 20:23 ` jakub at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).