https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79755
Bug ID: 79755 Summary: ICE: segfault in cgraph_node::get, at cgraph.h:1261 Product: gcc Version: 7.0.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gerhard.steinmetz.fort...@t-online.de Target Milestone: --- Affects versions down to 4.9 (configured with --enable-checking=yes) : $ cat z1.c void foo () {} #pragma weak foo = _foo int _foo = 0; $ gcc-7-20170226 -c z1.c z1.c:1:6: error: 'foo' defined both normally and as 'alias' attribute void foo () {} ^~~ z1.c:1:6: error: 'foo' alias in between function and variable is not supported z1.c:3:5: warning: '_foo' aliased declaration int _foo = 0; ^~~~ z1.c:1:6: internal compiler error: Segmentation fault void foo () {} ^~~ 0xbf9f9f crash_signal ../../gcc/toplev.c:337 0x7f25e2 cgraph_node::get(tree_node const*) ../../gcc/cgraph.h:1261 0x7f25e2 cgraph_node::analyze() ../../gcc/cgraphunit.c:630 0x7f5d93 analyze_functions ../../gcc/cgraphunit.c:1118 0x7f68da symbol_table::finalize_compilation_unit() ../../gcc/cgraphunit.c:2599