[Bug middle-end/50867] New: [4.7 Regression] LTO bootstrap failed with bootstrap-profiled

[Bug middle-end/50867] New: [4.7 Regression] LTO bootstrap failed with bootstrap-profiled

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50867

             Bug #: 50867
           Summary: [4.7 Regression] LTO bootstrap failed with
                    bootstrap-profiled
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On Linux/x86, revision 180409 failed LTO bootstrap with bootstrap-profiled:

../../src-trunk/gcc/cfgexpand.c: In function 'gimple_expand_cfg':
../../src-trunk/gcc/cfgexpand.c:4150:1: error: definition in block 188 does not
dominate use in block 185
for SSA_NAME: .MEM_2142 in statement:
.MEM_2142 = PHI <.MEM_2288(186), .MEM_2142(185)>
PHI argument
.MEM_2142
for PHI node
.MEM_2142 = PHI <.MEM_2288(186), .MEM_2142(185)>
../../src-trunk/gcc/cfgexpand.c:4150:1: internal compiler error: verify_ssa
failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[7]: *** [/tmp/ccSmFI9I.ltrans2.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/usr/local/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status

Revision 180329 is OK.

[Bug middle-end/50867] [4.7 Regression] LTO bootstrap failed with bootstrap-profiled

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50867

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tom at codesourcery dot com
   Target Milestone|---                         |4.7.0

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-10-25 21:42:14 UTC ---
It is caused by revision 180341:

http://gcc.gnu.org/ml/gcc-cvs/2011-10/msg00937.html

[Bug middle-end/50867] [4.7 Regression] LTO bootstrap failed with bootstrap-profiled

[belyshev at depni dot sinp.msu.ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50867

Serge Belyshev <belyshev at depni dot sinp.msu.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |belyshev at depni dot
                   |                            |sinp.msu.ru
         Resolution|                            |DUPLICATE

--- Comment #2 from Serge Belyshev <belyshev at depni dot sinp.msu.ru> 2011-10-26 00:15:02 UTC ---
Dup of bug 50763, proposed fix:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50763#c12
http://gcc.gnu.org/ml/gcc-patches/2011-10/msg02268.html

*** This bug has been marked as a duplicate of bug 50763 ***