Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Target Milestone: ---
Hello !
I'm using a freshly built version of GCC (gcc version 8.0.0 20170812) :
$ cat tested.c
int a, b, *c;
void d(void)
{
int **e
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67191
Antoine Balestrat antoine.balestrat at gmail dot com changed:
What|Removed |Added
CC
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Target Milestone: ---
Hello ! Please consider the following testcase which makes a freshly built GCC
6.0 ICE at -O2.
$ cat
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Target Milestone: ---
Hello !
The following testcase appears to make a freshly built GCC fail at -O3.
$ xgcc --version
gcc (GCC) 6.0.0 20150721 (experimental)
$ cat
: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Target Milestone: ---
Hello !
This very pathological testcase seems to trigger an ICE with a freshly built
gcc.
$ xgcc --version
gcc (GCC) 6.0.0 20150720 (experimental)
$ cat
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
The following testcase makes GCC 4.9.0 as of 20131224 segfault at -O1.
$ cat seg.c
long a, b;
void f(void)
{
if(0)
{
int c, d;
lbl1:
for(c = 0; c
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hi !
I'm using GCC 4.9 20131207.
$ cat deter.c
int a, b, d;
short c;
void f(void)
{
if(b)
{
int *e;
if(d
: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
The following testcase makes GCC 4.9.0 as of 20131201 crash.
$ cat seg.c
int a, b;
void f()
{
int c = 0;
for(; b; b++)
{
for(a = 0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59020
Antoine Balestrat antoine.balestrat at gmail dot com changed:
What|Removed |Added
CC
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello ! The following testcase makes GCC 4.9.0 as of 20130921 crash.
$ cat vfi.c
void f(int p, short q)
{
f(0, 0);
}
$ xgcc -O3 -fipa-pta vfi.c
vfi.c: In function ‘f’:
vfi.c:1:6: error
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
With GCC 4.9.0 as of 20130728 :
$ cat max.c
int a, b, c, d, e;
void f(void)
{
if(c)
goto lbl;
for(; 0; c
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
Using GCC 4.9.0 as of 20130728 :
$ cat vect.c
short a, b, c, d;
void f(void)
{
short e;
for(; e; e++)
for(; b; b
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Using GCC 4.9.0 as of 20130728 :
$ cat seg.c
int a, b;
void f(unsigned p)
{
unsigned *pp = p;
if(!a)
p = 0;
for(b = 0; b 1; b++)
if(3 * p + 5 * *pp)
a = 0
: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
I'm using GCC 4.9.0 as of 20130726 :
$ cat dom.c
int a, b, c, d;
char e;
unsigned g;
void f(void)
{
int h
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
Using GCC 4.9.0 as of 20130623 :
$ cat inf.c
unsigned f(void)
{
unsigned a;
int b, c, d, e;
for(c = 27; c 40; c++)
b |= d |= b;
if(b)
a = e
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57497
--- Comment #3 from Antoine Balestrat antoine.balestrat at gmail dot com ---
This bug looks unreproducible with the current trunk.
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Using GCC 4.9.0 as of 20130622 :
$ cat lra.c
int a, b, c;
void f(p1)
{
for(;;)
{
if(p1 ? : (c /= 0))
{
int
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
The following testcase makes GCC 4.9.0 as of 20130601 ICE at -O3.
$ cat lra.c
int a, b;
void f(void)
{
for(;; a++)
if(0
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
Using GCC 4.9.0 as of 20130528 (on a x86_64 box) :
$ cat reassoc.c
short a;
unsigned b;
long c;
int d;
void f(void)
{
b = a ? : (a = b) - c + (d - (b + b
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
I'm using GCC 4.9.0 as of 20130524.
$ cat ssa.c
int a;
void f(void)
{
int b;
for(a = 0; a 23; a++)
b |= a 0
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Using GCC 4.9.0 as of 20130518 :
$ cat seg.c
int a;
void f(void)
{
char b;
for (;; a++)
{
char *p = b, *q;
*q = b 0 !!*p;
}
}
$ xgcc -w -O1 seg.c
seg.c
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: antoine.balestrat at gmail dot com
Hello !
Using GCC 4.9.0 as of 20130511 :
$ cat optab.c
short a, b;
int f()
{
long long i = 2;
a ? f() ? : 0 : b--;
b = i *= a |= 0;
}
$ xgcc -O2 -ftracer -m32 optab.c
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57185
Bug #: 57185
Summary: ICE: Segmentation fault in add_field_for_reduction
with -ftree-parallelize-loops=2 -fipa-pta
Classification: Unclassified
Product: gcc
Version: 4.9.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57122
Bug #: 57122
Summary: ICE in verify_loop_structure, at cfgloop.c:1647 (loop
n’s latch does not have an edge to its header !)
Classification: Unclassified
Product: gcc
Version:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57081
Bug #: 57081
Summary: Segmentation fault in simple_iv
(tree-scalar-evolution.c:3151)
Classification: Unclassified
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56756
Bug #: 56756
Summary: ICE: verify_ssa failed (definition in block n follows
the use !)
Classification: Unclassified
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56695
Bug #: 56695
Summary: ICE in expand_vec_cond_expr, at optabs.c:6751
Classification: Unclassified
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56417
Antoine Balestrat antoine.balestrat at gmail dot com changed:
What|Removed |Added
CC
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56571
Bug #: 56571
Summary: ICE in copyprop_hardreg_forward_1, at regcprop.c (insn
does not satisfy its constraints !)
Classification: Unclassified
Product: gcc
Version: 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56494
Bug #: 56494
Summary: ICE in simplify_truncation, at simplify-rtx.c:619
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56466
Bug #: 56466
Summary: ICE in verify_loop_structure, at cfgloop.c:1629 (loop
with header n not in loop tree !)
Classification: Unclassified
Product: gcc
Version: 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56426
Bug #: 56426
Summary: Segmentation fault in find_var_scev_info, at
tree-scalar-evolution.c:358
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56384
Bug #: 56384
Summary: ICE in fold_binary_loc, at fold-const.c:10422
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56366
Bug #: 56366
Summary: ICE: verify_gimple failed (incompatible types in PHI
argument)
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56349
Bug #: 56349
Summary: ICE in create_preheader at cfgloopmanip.c:1525
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56350
Bug #: 56350
Summary: ICE in vectorizable_reduction, at
tree-vect-loop.c:4731
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56264
Bug #: 56264
Summary: ICE in check_loop_closed_ssa_use, at
tree-ssa-loop-manip.c:557
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56195
Bug #: 56195
Summary: Error: incorrect register `%rdi' used with `l' suffix
(at -O2)
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56181
Bug #: 56181
Summary: ICE in verify_loop_structure, at cfgloop.c:1581 with
-ftracer
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55270
--- Comment #2 from Antoine Balestrat antoine.balestrat at gmail dot com
2013-01-26 14:10:57 UTC ---
Still reproducible as of 4.8.0 20130125.
Started with http://gcc.gnu.org/viewcvs?view=revisionrevision=185913
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56034
Bug #: 56034
Summary: ICE: verify_gimple failed (invalid PHI argument) with
-ftree-loop-distribution
Classification: Unclassified
Product: gcc
Version: 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56035
Bug #: 56035
Summary: ICE in verify_loop_structure, at cfgloop.c:1581 (loop
n’s header does not belong directly to it !)
Classification: Unclassified
Product: gcc
Version:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55964
Bug #: 55964
Summary: Segmentation fault with -O -ftree-loop-distribution
-funswitch-loops
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55955
Bug #: 55955
Summary: ICE in optab_for_tree_code, at optabs.c:402
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55862
Bug #: 55862
Summary: ICE in compute_antic, at tree-ssa-pre.c:2495
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55838
Bug #: 55838
Summary: ICE in extract_insn (unrecognizable insn) with -O
-funroll-loops
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48443
Antoine Balestrat antoine.balestrat at gmail dot com changed:
What|Removed |Added
CC
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55831
Bug #: 55831
Summary: ICE: verify_flow_info failed
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48443
--- Comment #3 from Antoine Balestrat antoine.balestrat at gmail dot com
2012-12-31 13:51:19 UTC ---
(In reply to comment #2)
(In reply to comment #1)
I was not able to reproduce the bug with this testcase (using GCC 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55832
Bug #: 55832
Summary: ICE in fold_convert_loc, at fold-const.c:1967
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55833
Bug #: 55833
Summary: ICE in verify_loop_structure, at cfgloop.c:1582 (BB
should be marked irreducible !)
Classification: Unclassified
Product: gcc
Version: 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55277
Antoine Balestrat antoine.balestrat at gmail dot com changed:
What|Removed |Added
CC
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55270
Bug #: 55270
Summary: ICE in get_loop_body, at cfgloop.c:823
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55191
Bug #: 55191
Summary: ICE in compute_antic at tree-ssa-pre.c:2511
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122
Bug #: 55122
Summary: ICE: maximum number of LRA constraint passes is
achieved (15)
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55124
Bug #: 55124
Summary: ICE in find_or_generate_expression, at
tree-ssa-pre.c:2803
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55107
Bug #: 55107
Summary: GCC in an infinite loop at -O2
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55110
Bug #: 55110
Summary: Internal compiler error in vectorizable_reduction, at
tree-vect-loop.c:4633
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55111
Bug #: 55111
Summary: ICE: tree check: expected ssa_name, have integer_cst
in live_on_edge, at tree-vrp.c:89
Classification: Unclassified
Product: gcc
Version: 4.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55011
Bug #: 55011
Summary: GCC in an infinite loop at -O2
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
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