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* [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
@ 2004-01-24 22:15 laurent at guerby dot net
2004-01-24 22:17 ` [Bug ada/13849] " laurent at guerby dot net
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: laurent at guerby dot net @ 2004-01-24 22:15 UTC (permalink / raw)
To: gcc-bugs
The problem does not occur
$ gcc -c -O3 -funroll-all-loops cxa5011.adb
cxa5011.adb: In function `CXA5011':
cxa5011.adb:3: error: verify_flow_info: REG_BR_PROB does not match cfg 29 0
cxa5011.adb:3: error: verify_flow_info: REG_BR_PROB does not match cfg 29 0
cxa5011.adb:3: error: verify_flow_info: REG_BR_PROB does not match cfg 29 0
cxa5011.adb:3: error: verify_flow_info: REG_BR_PROB does not match cfg 29 0
+===========================GNAT BUG DETECTED==============================+
| 3.5.0 20040123 (experimental) (i686-pc-linux-gnu) verify_flow_info failed|
| Error detected at cxa5011.adb:25:5 |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html. |
| Include the entire contents of this bug box in the report. |
| Include the exact gcc or gnatmake command that you entered. |
| Also include sources listed below in gnatchop format |
| (concatenated together with no headers between files). |
+==========================================================================+
Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
cxa5011.adb
compilation abandoned
$ gcc -v
Reading specs from
/home/guerby/work/gcc/install/install-20040123T214648/lib/gcc/i686-pc-linux-gnu/3.5.0/specs
Configured with: /home/guerby/work/gcc/gcc/configure
--prefix=/home/guerby/work/gcc/install/install-20040123T214648
--enable-languages=ada,c --enable-threads --disable-nls
Thread model: posix
gcc version 3.5.0 20040123 (experimental)
The source is reduced from the ACATS test:
$ cat cxa5011.adb
with Ada.Numerics.Discrete_Random;
procedure CXA5011 is
type Discrete_Range is mod 2**(Integer'Size-1);
package Discrete_Package is new Ada.Numerics.Discrete_Random(Discrete_Range);
TC_Max_Loop_Count : constant Natural := 1000;
procedure Toto (X : String) is
begin
null;
end Toto;
Gen_1, Gen_2 : Discrete_Package.Generator;
Check_Failed : Boolean := False;
begin
for i in 1..TC_Max_Loop_Count loop
if Discrete_Package.Random(Gen_1) /=
Discrete_Package.Random(Gen_2)
then
Check_Failed := True;
exit;
end if;
end loop;
Toto (Integer'Image (0));
end CXA5011;
--
Summary: backend ICE (verify_flow_info) on ACATS test cxa5011
when using -O3 -funroll-all-loops
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P2
Component: ada
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: laurent at guerby dot net
CC: gcc-bugs at gcc dot gnu dot org,laurent at guerby dot
net
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=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ada/13849] backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
@ 2004-01-24 22:17 ` laurent at guerby dot net
2004-01-24 22:22 ` [Bug optimization/13849] " charlet at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: laurent at guerby dot net @ 2004-01-24 22:17 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From laurent at guerby dot net 2004-01-24 22:17 -------
The following ACATS tests also have the same ICE with -O3 -funroll-all-loops:
cxg2003 cxg2011 cxg2014
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-01-24 22:17:39
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/13849] backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
2004-01-24 22:17 ` [Bug ada/13849] " laurent at guerby dot net
@ 2004-01-24 22:22 ` charlet at gcc dot gnu dot org
2004-01-24 22:39 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: charlet at gcc dot gnu dot org @ 2004-01-24 22:22 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From charlet at gcc dot gnu dot org 2004-01-24 22:22 -------
If it's a back-end ICE, it's unlikely to be an Ada bug.
More likely to be an optimization bug, although this is just a
guess of course.
Arno
--
What |Removed |Added
----------------------------------------------------------------------------
Component|ada |optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/13849] backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
2004-01-24 22:17 ` [Bug ada/13849] " laurent at guerby dot net
2004-01-24 22:22 ` [Bug optimization/13849] " charlet at gcc dot gnu dot org
@ 2004-01-24 22:39 ` pinskia at gcc dot gnu dot org
2004-11-06 18:15 ` [Bug rtl-optimization/13849] " pinskia at gcc dot gnu dot org
2005-06-20 19:05 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-01-24 22:39 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-01-24 22:39 -------
Please do not confirm your own bug.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/13849] backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
` (2 preceding siblings ...)
2004-01-24 22:39 ` pinskia at gcc dot gnu dot org
@ 2004-11-06 18:15 ` pinskia at gcc dot gnu dot org
2005-06-20 19:05 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-06 18:15 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-06 18:15 -------
Does this still happen?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/13849] backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops
2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
` (3 preceding siblings ...)
2004-11-06 18:15 ` [Bug rtl-optimization/13849] " pinskia at gcc dot gnu dot org
@ 2005-06-20 19:05 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-20 19:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-20 19:05 -------
This works for me on powerpc-darwin.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13849
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-06-20 19:05 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2004-01-24 22:15 [Bug ada/13849] New: backend ICE (verify_flow_info) on ACATS test cxa5011 when using -O3 -funroll-all-loops laurent at guerby dot net
2004-01-24 22:17 ` [Bug ada/13849] " laurent at guerby dot net
2004-01-24 22:22 ` [Bug optimization/13849] " charlet at gcc dot gnu dot org
2004-01-24 22:39 ` pinskia at gcc dot gnu dot org
2004-11-06 18:15 ` [Bug rtl-optimization/13849] " pinskia at gcc dot gnu dot org
2005-06-20 19:05 ` pinskia at gcc dot gnu dot org
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