https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100590
Bug ID: 100590 Summary: ICE: verify_flow_info failed (error: too many outgoing branch edges from bb 2) Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- gcc-12.0.0-alpha20210509 snapshot (g:5e0236d3b0e0d7ad98bcee36128433fa755b5558) and gcc 11.1 ICE when compiling testsuite/gcc.dg/torture/pr100398.c w/ -O1 -fno-dce: % gcc-12.0.0 -O1 -fno-dce -c gcc/testsuite/gcc.dg/torture/pr100398.c gcc/testsuite/gcc.dg/torture/pr100398.c: In function 'test5_limit': gcc/testsuite/gcc.dg/torture/pr100398.c:13:1: error: too many outgoing branch edges from bb 2 13 | } | ^ during RTL pass: cprop_hardreg gcc/testsuite/gcc.dg/torture/pr100398.c:13:1: internal compiler error: verify_flow_info failed 0x9706d3 verify_flow_info() /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210509/work/gcc-12-20210509/gcc/cfghooks.c:269 0xd2d29a execute_function_todo /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210509/work/gcc-12-20210509/gcc/passes.c:2054 0xd2dc8b execute_todo /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210509/work/gcc-12-20210509/gcc/passes.c:2096 It can be a duplicate of PR98619.