https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90108
Bug ID: 90108 Summary: ICE: Segmentation fault (in c_tree_chain_next) Product: gcc Version: 9.0 Status: UNCONFIRMED Keywords: GC Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- g++-9.0.0-alpha20190414 snapshot (r270355), 8.3, 7.4, 6.3, 5.5 all ICE when compiling gcc/testsuite/c-c++-common/pr89933.c w/ --param ggc-min-heapsize=0: % g++-9.0.0-alpha20190414 --param ggc-min-heapsize=0 -c gcc/testsuite/c-c++-common/pr89933.c gcc/testsuite/c-c++-common/pr89933.c:5:71: internal compiler error: Segmentation fault 5 | typedef unsigned int a __attribute__ ((__aligned__(8), __may_alias__)); | ^ 0xf780df crash_signal /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/toplev.c:326 0xa3c507 c_tree_chain_next /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/c-family/c-common.h:1197 0xa3c507 gt_ggc_mx_lang_tree_node(void*) ./gt-cp-tree.h:110 0xa3d7a2 gt_ggc_mx_lang_tree_node(void*) ./gt-cp-tree.h:441 0xa3d6e9 gt_ggc_mx_lang_tree_node(void*) ./gt-cp-tree.h:420 0xa3d47a gt_ggc_mx_lang_tree_node(void*) ./gt-cp-tree.h:336 0xcbaf04 ggc_mark_root_tab /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/ggc-common.c:77 0xcbb10c ggc_mark_roots() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/ggc-common.c:94 0xae542f ggc_collect() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/ggc-page.c:2201 0x91e775 c_parse_final_cleanups() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190414/work/gcc-9-20190414/gcc/cp/decl2.c:4819