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
