testcase produces internal compiler error: in collapse_rest_of_var, at tree-ssa-structalias.c:3296
Version: trunk rev. 144201. Reproduce: gcc-4.4 -O2 -c tst.c typedef struct { union { int * aaa; } u; } t_a; typedef struct { unsigned bbb : 1; } t_b; typedef struct { int ccc; t_a ddd; t_b eee; int fff; } t_c; typedef struct t_d { t_c f1; t_c f2; } t_d; void foo (void) { t_d ggg; ggg.f1 = ggg.f2; } -- Summary: internal compiler error: in collapse_rest_of_var, at tree-ssa-structalias.c:3296 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: holger dot hopp at sap dot com 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=39202