https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88636
Bug ID: 88636 Summary: [9 Regression] ICE: Segmentation fault (in c_tree_chain_next) Product: gcc Version: 9.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- Target: x86_64-unknown-linux-gnu g++-9.0.0-alpha20181223 snapshot (r267388) ICEs when compiling gcc/testsuite/gcc.target/i386/pr57848.c w/ -fno-exceptions --param ggc-min-heapsize=0 on an Ivy Bridge host: % x86_64-unknown-linux-gnu-g++-9.0.0-alpha20181223 -fno-exceptions --param ggc-min-heapsize=0 -c gcc/testsuite/gcc.target/i386/pr57848.c gcc/testsuite/gcc.target/i386/pr57848.c:5:29: internal compiler error: Segmentation fault 5 | #pragma GCC target("sse4.2") | ^ 0xf2acef crash_signal /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/toplev.c:326 0xa019f7 c_tree_chain_next /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/c-family/c-common.h:1187 0xa019f7 gt_ggc_mx_lang_tree_node(void*) ./gt-cp-tree.h:110 0xc7a2e5 ggc_mark_root_tab /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/ggc-common.c:77 0xc7a4ec ggc_mark_roots() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/ggc-common.c:94 0xaabec6 ggc_collect() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/ggc-page.c:2201 0x8e733d c_parse_final_cleanups() /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181223/work/gcc-9-20181223/gcc/cp/decl2.c:4776