With gcc 4.6:
gfortran  -c -o diis.fppized.o -O3 -fno-tree-pre -march=amdfam10 -m64
diis.fppized.f90

diis.fppized.f90: In function 'extrapolate':
diis.fppized.f90:882:0: internal compiler error: vector VEC(vec_void_p,base)
index domain error, in vinfo_for_stmt at tree-vectorizer.h:595
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions

This is invoked in "vect_recog_dot_prod_pattern":
stmt_vinfo = vinfo_for_stmt (stmt);

Where "stmt" is not inside the loop, and thus stmt_vinfo was not set up.


-- 
           Summary: CPU2006 465.tonto ICE in the vectorizer with -fno-tree-
                    pre
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: changpeng dot fang at amd dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45239

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