https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87280
Bug ID: 87280 Summary: [9 Regression] ICE in set_ssa_val_to, at tree-ssa-sccvn.c:3647 Product: gcc Version: 9.0 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: --- Created attachment 44677 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44677&action=edit Testcase gcc-9.0.0-alpha20180909 snapshot (r264185) ICEs when compiling the attached snippet w/ -O2 (-Os, -O3, -Ofast) --param rpo-vn-max-loop-depth=5: % gcc-9.0.0-alpha20180909 -O2 --param rpo-vn-max-loop-depth=5 -w -c rilo1emt.c during GIMPLE pass: fre rilo1emt.c: In function 'j8': rilo1emt.c:58:1: internal compiler error: in set_ssa_val_to, at tree-ssa-sccvn.c:3647 58 | } | ^ 0x699fa5 set_ssa_val_to /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:3647 0xe63d78 visit_phi /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:4261 0xe6435f visit_stmt /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:4304 0xe65e89 process_bb /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:5923 0xe671a8 do_rpo_vn /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:6454 0xe67f8c execute /var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180909/work/gcc-9-20180909/gcc/tree-ssa-sccvn.c:6646