--- Comment #17 from jakub at gcc dot gnu dot org 2007-12-11 12:35 ---
Can't reproduce any ICE on {x86_64,i686,ppc}-linux with here referenced
testcases at various flags (including e.g. -O3 -fno-strict-aliasing
-fno-tree-vectorize to make it more similar to the old setup).
The #c1
--- Comment #18 from rguenth at gcc dot gnu dot org 2007-12-11 13:20
---
The dups also all work. Let's close this as fixed then.
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #19 from jakub at gcc dot gnu dot org 2007-12-11 13:41 ---
The testcase that was broken longest is #c3, which got fixed by
http://gcc.gnu.org/viewcvs?root=gccview=revrev=130222
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #16 from janis at gcc dot gnu dot org 2007-10-19 22:14 ---
A regression hunt on powerpc-linux using the testcase from comment #3
identified this patch:
http://gcc.gnu.org/viewcvs?view=revrev=119502
r119502 | dberlin | 2006-12-04 19:07:05 + (Mon, 04 Dec 2006)
--- Comment #14 from tbm at gcc dot gnu dot org 2007-08-25 09:37 ---
*** Bug 32607 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #15 from tbm at gcc dot gnu dot org 2007-08-25 09:37 ---
*** Bug 31926 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #13 from reichelt at gcc dot gnu dot org 2007-08-21 19:50
---
Here's an even smaller testcase:
=
int *p;
inline int foo(int *q)
{
if (*q)
*q = 0;
return *q;
}
void bar(int *r, int i)
{
int *s;
while (--i)
*(s = r) = foo(p);
--- Comment #9 from pinskia at gcc dot gnu dot org 2007-08-20 09:18 ---
This testcase needs a rereduction, the two reductions here work now.
Reducing now.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #10 from pinskia at gcc dot gnu dot org 2007-08-20 11:55
---
Here is a new reduced testcase (compile at -O3 -fno-strict-aliasing):
struct rxvt_salloc {
char *firstblock;
unsigned int firstfree;
};
struct line_t {
unsigned int *t;
unsigned int f;
};
struct
--- Comment #11 from pinskia at gcc dot gnu dot org 2007-08-20 11:57
---
Here is a new reduced testcase (compile at -O3 -fno-strict-aliasing):
One more note, this testcase ICEs with the C front-end now :).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #12 from pinskia at gcc dot gnu dot org 2007-08-20 12:00
---
You can also now invoke it just with -O1 -ftree-store-ccp :).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--
mmitchel at gcc dot gnu dot org changed:
What|Removed |Added
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #8 from reichelt at gcc dot gnu dot org 2007-06-07 21:52
---
The following simplified testcase still crashes on mainline when compiled
with -O2:
==
struct A
{
int i, *p;
A* a;
void foo()
{
if (p)
p++;
else
{
if
--- Comment #7 from pinskia at gcc dot gnu dot org 2007-06-07 02:47 ---
This testcase works on the trunk on, it was fixed between 20070513 and
20070531. I will check on the other testcase too.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30840
--- Comment #6 from tbm at gcc dot gnu dot org 2007-05-19 09:07 ---
*** Bug 31926 has been marked as a duplicate of this bug. ***
--
tbm at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #4 from rguenth at gcc dot gnu dot org 2007-02-19 11:31 ---
It seems to be a problem with ssa-edge simulation ordering. We have
# SMT.6_95 = VDEF SMT.6_60
# SMT.8_96 = VDEF SMT.8_70
this_22-firstfree = D.2527_46;
in particular, adding only the first output to simulate
--- Comment #5 from rguenth at gcc dot gnu dot org 2007-02-19 12:56 ---
We can also simply check before the fact like
Index: tree-ssa-ccp.c
===
*** tree-ssa-ccp.c (revision 122127)
--- tree-ssa-ccp.c (working
--- Comment #3 from pinskia at gcc dot gnu dot org 2007-02-19 06:53 ---
Confirmed, reduced testcase as far as I can do it:
typedef struct rxvt_term *rxvt_t;
struct rxvt_salloc {
struct chain {
struct chain *next;
};
chain *firstline;
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