The attached code ICE's with the mainline, but not gcc 4.1.1 or 4.0.3. > gcc -O1 -ftree-vectorize -c a.c a.c: In function o: a.c:4: internal compiler error: tree check: accessed operand 2 of nop_expr with 1 operands in analyze_siv_subscript_cst_affine, at tree-data-ref.c:2335
> gcc -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../gcc420/configure --prefix=/usr/local/gcc420 --enable-languages=c,c++,fortran Thread model: posix gcc version 4.2.0 20060525 (experimental) -- Summary: ICE at tree-data-ref.c:2335 when using -ftree-vectorize Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: p dot vanhoof at oma dot be http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27779