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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/55329] New: [4.8 Regression] ICE: internal compiler error: in operator[], at vec.h:487 with -O -fno-guess-branch-probability -fnon-call-exceptions --param=early-inlining-insns=111
Date: Wed, 14 Nov 2012 20:51:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55329

             Bug #: 55329
           Summary: [4.8 Regression] ICE: internal compiler error: in
                    operator[], at vec.h:487 with -O
                    -fno-guess-branch-probability -fnon-call-exceptions
                    --param=early-inlining-insns=111
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28689
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28689
preprocessed source; can't be significantly reduced

Compiler output:
$ gcc -O -fno-guess-branch-probability -fnon-call-exceptions
--param=early-inlining-insns=111
/mnt/svn/gcc-trunk/gcc/testsuite/g++.dg/torture/pr48271.C -save-temps
/mnt/svn/gcc-trunk/gcc/testsuite/g++.dg/torture/pr48271.C: In function 'void
stCheckReverseTrain()':                                                 
/mnt/svn/gcc-trunk/gcc/testsuite/g++.dg/torture/pr48271.C:116:6: internal
compiler error: in operator[], at vec.h:487                                
 void stCheckReverseTrain ()                                                    
      ^                                                                         
0xc8fecb vec_t<basic_block_def*>::operator[](unsigned int)                      
        /mnt/svn/gcc-trunk/gcc/vec.h:487                                        
0xc8fecb tree_ssa_dominator_optimize
        /mnt/svn/gcc-trunk/gcc/tree-ssa-dom.c:807
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r193495 - crash
4.7 r191640 - OK