http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46172
Summary: ICE: in expand_widen_pattern_expr, at optabs.c:522 with -ftree-vectorize -fno-tree-dce Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz Created attachment 22152 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22152 reduced testcase Output - 4.6 (trunk): $ gcc -ftree-vectorize -O -fno-tree-dce pr46172.c pr46172.c: In function 'foo': pr46172.c:3:5: internal compiler error: in expand_widen_pattern_expr, at optabs.c:522 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Output - 4.5: $ gcc -ftree-vectorize -O -fno-tree-dce pr46172.c pr46172.c: In function 'foo': pr46172.c:3:5: internal compiler error: in expand_expr_real_2, at expr.c:8275 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Output - 4.4: $ gcc -ftree-vectorize -O -fno-tree-dce pr46172.c pr46172.c: In function 'foo': pr46172.c:3: internal compiler error: in c_expand_expr, at c-common.c:5015 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Tested revisions: r165915 - crash 4.5 r165781 - crash 4.4 r165781 - crash 4.4 r149995 - crash