https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98182
Bug ID: 98182
Summary: [11 Regression] ICE: Segmentation fault (in
gimple_verify_flow_info)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-11.0.0-alpha20201206 snapshot (g:9da33826bb9b7d76f85057c18a0b65d0e14baa3d)
ICEs when compiling gcc/testsuite/c-c++-common/Wmultistatement-macros-3.c w/
-O1 --param case-values-threshold=1:
% gcc-11.0.0 -O1 --param case-values-threshold=1 -c
gcc/testsuite/c-c++-common/Wmultistatement-macros-3.c
during GIMPLE pass: iftoswitch
gcc/testsuite/c-c++-common/Wmultistatement-macros-3.c: In function 'fn':
gcc/testsuite/c-c++-common/Wmultistatement-macros-3.c:12:1: internal compiler
error: Segmentation fault
12 | }
| ^
0xdeec7f crash_signal
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/toplev.c:327
0xe34ca4 gimple_verify_flow_info
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/tree-cfg.c:5701
0x9550ba verify_flow_info()
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/cfghooks.c:267
0xe412e4 checking_verify_flow_info
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/cfghooks.h:212
0xe412e4 cleanup_tree_cfg_noloop
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/tree-cfgcleanup.c:1136
0xe412e4 cleanup_tree_cfg(unsigned int)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/tree-cfgcleanup.c:1187
0xd0dfc4 execute_function_todo
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/passes.c:2008
0xd0e93b execute_todo
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201206/work/gcc-11-20201206/gcc/passes.c:2096
