[Bug c/42221] New: ICE from '-Os -fgraphite-identity'

[b3timmons at speedymail dot org]

gcc -v -B. -r -nostdlib -Wall -Wextra -Os -fgraphite-identity md4.i; echo EXIT:
$?
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc/configure --with-mpfr=/usr/local --with-gmp=/usr/local
--with-ppl=/usr/local --with-cloog=/usr/local --with-mpc=/usr/local
--with-libelf=/usr/local --enable-languages=c,c++ --enable-__cxa_atexit
--enable-targets=all
Thread model: posix
gcc version 4.5.0 20091129 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-B.' '-r' '-nostdlib' '-Wall' '-Wextra' '-Os'
'-fgraphite-identity' '-mtune=generic'
 /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/cc1 -fpreprocessed md4.i
-quiet -dumpbase md4.i -mtune=generic -auxbase md4 -Os -Wall -Wextra -version
-fgraphite-identity -o /tmp/ccR7BjWO.s
GNU C (GCC) version 4.5.0 20091129 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.5.0 20091129 (experimental), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.5.0 20091129 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.5.0 20091129 (experimental), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 89b3c82a0e7a4c9be3065ee229d764cd
md4.c: In function ‘md4step’:
md4.c:106:13: error: incorrect sharing of tree nodes
var.35_1139 = &X[D.3485_1099];

&X[D.3485_1099]
md4.c:106:13: error: incorrect sharing of tree nodes
wp_437 = &X[D.3485_1099];

&X[D.3485_1099]
md4.c:106:13: internal compiler error: verify_stmts failed


-- 
           Summary: ICE from '-Os -fgraphite-identity'
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: b3timmons at speedymail dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42221