[Bug ada/15405] New: [3.4/3.5 regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[Bug ada/15405] New: [3.4/3.5 regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[ludovic dot brenta at insalien dot org]

procedure Test_105 is
       x: float;
    begin
       for i in 1..10 loop
          x := float(i);
       end loop;
    exception
       when others => null;
    end Test_105;

$ gcc -c test105.adb -funroll-all-loops -O1

+===========================GNAT BUG DETECTED==============================+
| 3.5.0 20040327 (experimental) (i686-pc-linux-gnu) verify_flow_info failed|
| Error detected at test105.adb:9:5                                        |
| 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).                   |
+==========================================================================+

-- 
           Summary: [3.4/3.5 regression] Bug box, verify_flow_info failed
                    when using -funroll-all-loops -O1
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ludovic dot brenta at insalien dot org
                CC: gcc-bugs at gcc dot gnu dot org
 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=15405

[Bug optimization/15405] [3.4/3.5 regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|ada                         |optimization
           Keywords|                            |ice-on-valid-code
   Target Milestone|---                         |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405

[Bug rtl-optimization/15405] [3.4/3.5 regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-06-12 22:07 -------
Ada PRs are never showstoppers; I've removed the target milestone.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.1                       |---


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405

[Bug rtl-optimization/15405] [3.4/4.0 regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-10-07 09:36 -------
Arnaud,

would you please check if this PR is still actual (and confirm it in case), or 
if it was fixed by recent work on mainline?

Thanks

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |giovannibajo at libero dot
                   |                            |it, charlet at gcc dot gnu
                   |                            |dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405

[Bug rtl-optimization/15405] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.4/4.0 regression] Bug    |Bug box, verify_flow_info
                   |box, verify_flow_info failed|failed when using -funroll-
                   |when using -funroll-all-    |all-loops -O1
                   |loops -O1                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405

[Bug rtl-optimization/15405] [3.3/3.4 Regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-12-09 02:23 -------
3.4 is ACATS free, this *is* a regression.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Bug box, verify_flow_info   |[3.3/3.4 Regression] Bug
                   |failed when using -funroll- |box, verify_flow_info failed
                   |all-loops -O1               |when using -funroll-all-
                   |                            |loops -O1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405

[Bug rtl-optimization/15405] [3.4 Regression] Bug box, verify_flow_info failed when using -funroll-all-loops -O1

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4 Regression] Bug    |[3.4 Regression] Bug box,
                   |box, verify_flow_info failed|verify_flow_info failed when
                   |when using -funroll-all-    |using -funroll-all-loops -O1
                   |loops -O1                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15405