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* [Bug c/44119] New: error: SSA name in freelist but still referenced
@ 2010-05-13 15:22 regehr at cs dot utah dot edu
2010-05-13 15:27 ` [Bug c/44119] [4.6 Regressionerror: " rguenth 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 @ 2010-05-13 15:22 UTC (permalink / raw)
To: gcc-bugs
[regehr@gamow tmp413]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r159348-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r159348-install
--program-prefix=r159348- --enable-languages=c,c++
Thread model: posix
gcc version 4.6.0 20100513 (experimental) (GCC)
[regehr@gamow tmp413]$ current-gcc -O2 -c small.c
small.c: In function 'func_96':
small.c:32:7: warning: overflow in implicit constant conversion [-Woverflow]
small.c:22:1: error: SSA name in freelist but still referenced
pretmp.15_47
small.c:38:13: note: in statement
# .MEM_24 = VDEF <.MEM_21(D)>
*pretmp.8_41 = pretmp.15_47;
small.c:22:1: 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.
[regehr@gamow tmp413]$ cat small.c
typedef signed char int8_t;
typedef short int int16_t;
typedef int int32_t;
typedef unsigned int uint32_t;
static int8_t
safe_mul_func_int16_t_s_s (int16_t si1, int8_t si2)
{
return si1 && si2 && si1 > +si2 || si1 && si2 && si2 < +si1 || si1 && si2
&& si1 < +si2 || si1 && si2 && si1 && si2 < +si1 ? : si1 * si2;
}
struct S0
{
};
int32_t g_72[7][4][1];
int32_t *g_184 = &g_72[1][2][0];
int32_t **g_224 = &g_184;
struct S0 g_244 = {
};
int8_t *
func_96 (int8_t p_97, uint32_t p_98, uint32_t p_99)
{
struct S0 *l_243 = &g_244;
int i;
for (i = 0; i < 1; p_98 = 1)
{
int32_t *l_202[3];
int i;
for (i = 0; i < 1; i++)
l_202[i] = &g_72[2][2][0];
if (safe_mul_func_int16_t_s_s (0xC4CAF0, **g_224))
{
if (p_98 && &l_243)
{
}
else
*g_224 = l_202[0];
for (0;; 1)
{
}
}
}
return 0;
}
--
Summary: error: SSA name in freelist but still referenced
Product: gcc
Version: unknown
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: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44119
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/44119] [4.6 Regressionerror: SSA name in freelist but still referenced
2010-05-13 15:22 [Bug c/44119] New: error: SSA name in freelist but still referenced regehr at cs dot utah dot edu
@ 2010-05-13 15:27 ` rguenth at gcc dot gnu dot org
2010-05-13 15:28 ` [Bug tree-optimization/44119] [4.6 Regression] error: " rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-13 15:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2010-05-13 15:27 -------
Confirmed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-05-13 15:27:39
date| |
Summary|error: SSA name in freelist |[4.6 Regressionerror: SSA
|but still referenced |name in freelist but still
| |referenced
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44119
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/44119] [4.6 Regression] error: SSA name in freelist but still referenced
2010-05-13 15:22 [Bug c/44119] New: error: SSA name in freelist but still referenced regehr at cs dot utah dot edu
2010-05-13 15:27 ` [Bug c/44119] [4.6 Regressionerror: " rguenth at gcc dot gnu dot org
@ 2010-05-13 15:28 ` rguenth at gcc dot gnu dot org
2010-05-14 20:19 ` rguenth at gcc dot gnu dot org
2010-05-14 20:22 ` rguenth at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-13 15:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-05-13 15:27 -------
The PRE change again.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Component|c |tree-optimization
Last reconfirmed|2010-05-13 15:27:39 |2010-05-13 15:27:59
date| |
Summary|[4.6 Regressionerror: SSA |[4.6 Regression] error: SSA
|name in freelist but still |name in freelist but still
|referenced |referenced
Target Milestone|--- |4.6.0
Version|unknown |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44119
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/44119] [4.6 Regression] error: SSA name in freelist but still referenced
2010-05-13 15:22 [Bug c/44119] New: error: SSA name in freelist but still referenced regehr at cs dot utah dot edu
2010-05-13 15:27 ` [Bug c/44119] [4.6 Regressionerror: " rguenth at gcc dot gnu dot org
2010-05-13 15:28 ` [Bug tree-optimization/44119] [4.6 Regression] error: " rguenth at gcc dot gnu dot org
@ 2010-05-14 20:19 ` rguenth at gcc dot gnu dot org
2010-05-14 20:22 ` rguenth at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-14 20:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-05-14 20:18 -------
Subject: Bug 44119
Author: rguenth
Date: Fri May 14 20:18:34 2010
New Revision: 159412
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159412
Log:
2010-05-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/44119
* tree-ssa-pre.c (eliminate): Properly mark replacement of
a PHI node necessary.
* gcc.c-torture/compile/pr44119.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr44119.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44119
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/44119] [4.6 Regression] error: SSA name in freelist but still referenced
2010-05-13 15:22 [Bug c/44119] New: error: SSA name in freelist but still referenced regehr at cs dot utah dot edu
` (2 preceding siblings ...)
2010-05-14 20:19 ` rguenth at gcc dot gnu dot org
@ 2010-05-14 20:22 ` rguenth at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-05-14 20:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-05-14 20:22 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44119
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-05-14 20:22 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2010-05-13 15:22 [Bug c/44119] New: error: SSA name in freelist but still referenced regehr at cs dot utah dot edu
2010-05-13 15:27 ` [Bug c/44119] [4.6 Regressionerror: " rguenth at gcc dot gnu dot org
2010-05-13 15:28 ` [Bug tree-optimization/44119] [4.6 Regression] error: " rguenth at gcc dot gnu dot org
2010-05-14 20:19 ` rguenth at gcc dot gnu dot org
2010-05-14 20:22 ` rguenth at gcc dot gnu dot org
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