Compiler output:
$ gcc -O -g -msse testcase.c  
testcase.c:2:1: internal compiler error: in rtl_for_decl_init, at
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I wasn't able to reproduce this at x86_64-linux-gnu with -m32.

Tested revisions:
r163723 - crash
20100821 - crash
20100814 - crash

----- testcase.c -----
typedef char v16qi __attribute__ ((__vector_size__ (16)));
static const v16qi search = { '\n', '\r', '?', '\\' };
(reduced from libcpp/lex.c)

The crash goes away when I add -msse2 or -msse4 or when I remove -msse.

           Summary: ICE: in rtl_for_decl_init, at dwarf2out.c:16307 with -g
                    -msse and using v16qi
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

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