[Bug rtl-optimization/44941] New: [4.6 Regression] ICE: RTL check: expected code 'mem', have 'reg' in emit_block_move_hints, at expr.c:1189

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

Command line:
$ gcc -O[123s] testcase.c

Compiler output:
$ gcc -O testcase.c
testcase.c: In function 'foo':
testcase.c:7:7: internal compiler error: RTL check: expected code 'mem', have
'reg' in emit_block_move_hints, at expr.c:1189

Unreduced testcase crashes with:
$ gcc -O rarpd.i
rarpd.c: In function 'load_if':
rarpd.c:203:41: internal compiler error: in make_decl_rtl, at varasm.c:1346

Reduced testcase without rtl checking crashes with:
$ gcc -O testcase.c
testcase.c: In function 'foo':
testcase.c:7:7: internal compiler error: Segmentation fault

Tested revisions:
r162193 - crash
r162056 - crash
r161659 - crash
r161170 - OK


-- 
           Summary: [4.6 Regression] ICE: RTL check: expected code 'mem',
                    have 'reg' in emit_block_move_hints, at expr.c:1189
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44941