https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88586
Bug ID: 88586 Summary: ICE: Segmentation fault (in free_lang_data_in_decl) Product: gcc Version: 9.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com CC: marxin at gcc dot gnu.org Target Milestone: --- g++-9.0.0-alpha20181223 snapshot (r267388) ICEs when compiling libgomp/testsuite/libgomp.c++/task-reduction-14.C w/ -flto -fopenmp: % g++-9.0.0-alpha20181223 -flto -fopenmp -c libgomp/testsuite/libgomp.c++/task-reduction-14.C during IPA pass: *free_lang_data libgomp/testsuite/libgomp.c++/task-reduction-14.C:72:1: internal compiler error: Segmentation fault 72 | } | ^ 0xf2ad8f crash_signal /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/toplev.c:326 0x11e0350 free_lang_data_in_decl /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/tree.c:5648 0x11e0350 free_lang_data_in_cgraph /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/tree.c:6174 0x11e0350 free_lang_data /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/tree.c:6210 0x11e0350 execute /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/tree.c:6282 I'm not marking it a regression, as the testcase uses OpenMP 5.0 which was not supported in prior versions of gcc and I don't have a better testcase yet.