The ICE looks similiar to PR43221, but it may be different issue - this one needs only one file to crash.
Command line: $ gcc -O1 -flto -fstrict-aliasing -fgraphite-identity testcase.c Compiler output: $ gcc -O1 -flto -fstrict-aliasing -fgraphite-identity testcase.c -m32 testcase.c: In function 'foo': testcase.c:2:6: internal compiler error: in get_alias_set, at alias.c:716 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. -- Summary: ICE: in get_alias_set, at alias.c:716 with -flto - fstrict-aliasing -fgraphite-identity Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: zsojka at seznam dot cz GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44562
