https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105151
Bug ID: 105151 Summary: [12 Regression] ICE in gimple_range_global, at value-query.cc:424 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started between 20211121 and 20211128 : $ cat z1.c int __GIMPLE () foo () { int _1; return a_1(D); } $ gcc-12-20220403 -c z1.c -fgimple z1.c: In function 'foo': z1.c:4:10: error: anonymous SSA name cannot have default definition 4 | return a_1(D); | ^~~ during GIMPLE pass: walloca z1.c:1:17: internal compiler error: Segmentation fault 1 | int __GIMPLE () foo () | ^~~ 0xe0a17f crash_signal ../../gcc/toplev.cc:322 0x1171d57 gimple_range_global(tree_node*) ../../gcc/value-query.cc:424 0x1bc9f4a ranger_cache::get_global_range(irange&, tree_node*) const ../../gcc/gimple-range-cache.cc:925 0x1bc5118 gimple_ranger::export_global_ranges() ../../gcc/gimple-range.cc:474 0x1c11061 pass_walloca::execute(function*) ../../gcc/gimple-ssa-warn-alloca.cc:381