https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97619
Bug ID: 97619 Summary: error: true/false edge after a non-GIMPLE_COND in bb Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 49459 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49459&action=edit C source code For the attached C source code with recent gcc trunk and compiler flag -O3, does this: /home/dcb/gcc/results.20201027/bin/gcc /home/dcb/gcc/results.20201028/bin/gcc resample.c: In function ‘merge_linear_argb_ref’: resample.c:163:1: error: true/false edge after a non-GIMPLE_COND in bb 4 resample.c:163:1: error: true/false edge after a non-GIMPLE_COND in bb 4 during GIMPLE pass: slp resample.c:163:1: internal compiler error: verify_flow_info failed 0xa0a2c0 verify_flow_info() ../../trunk.git/gcc/cfghooks.c:269 0xe1b583 execute_function_todo ../../trunk.git/gcc/passes.c:2004 The bug first appears sometime between 20201027 and 20201028. I won't be able to reduce the code until tomorrow.