https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83521
Bug ID: 83521 Summary: [8 Regression] ICE: verify_gimple failed (error: invalid operand in unary operation) Product: gcc Version: 8.0 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-8.0.0-alpha20171217 snapshot (r255766) ICEs when compiling the following snippet w/ -O1 -fno-tree-forwprop: int tq (unsigned int ls, int gj) { int *iz = (int *)&ls; return (gj == 0) ? gj : *iz; } % gcc-8.0.0-alpha20171217 -O1 -fno-tree-forwprop -c wslnmfya.c wslnmfya.c: In function 'tq': wslnmfya.c:2:1: error: invalid operand in unary operation tq (unsigned int ls, int gj) ^~ iftmp.0_1 = (int) (int) _6; during GIMPLE pass: phiopt wslnmfya.c:2:1: internal compiler error: verify_gimple failed 0xd71686 verify_gimple_in_cfg(function*, bool) /var/tmp/portage/sys-devel/gcc-8.0.0_alpha20171217/work/gcc-8-20171217/gcc/tree-cfg.c:5537 0xc6625f execute_function_todo /var/tmp/portage/sys-devel/gcc-8.0.0_alpha20171217/work/gcc-8-20171217/gcc/passes.c:1994 0xc66cae execute_todo /var/tmp/portage/sys-devel/gcc-8.0.0_alpha20171217/work/gcc-8-20171217/gcc/passes.c:2048