https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97880
Bug ID: 97880 Summary: [9/10/11 Regression] ICE in emit_library_call_value_1, at calls.c:5298 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- With option -ftrapv at -O0, down to version r7 : $ cat z1.c void f () { #pragma acc parallel loop tile(2, 3) for (int i = 0; i < 8; i++) for (long j = 0; j < 8; j++); } $ gcc-6 -c z1.c -fopenacc -ftrapv -O0 $ $ gcc-11-20201115 -c z1.c -fopenacc $ gcc-11-20201115 -c z1.c -fopenacc -ftrapv -O1 $ $ gcc-11-20201115 -c z1.c -fopenacc -ftrapv -O0 during RTL pass: expand z1.c: In function 'f._omp_fn.0': z1.c:3:11: internal compiler error: in emit_library_call_value_1, at calls.c:5298 3 | #pragma acc parallel loop tile(2, 3) | ^~~ 0x7304a0 emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type, machine_mode, int, std::pair<rtx_def*, machine_mode>*) ../../gcc/calls.c:5296 0xa3b4c8 emit_library_call_value(rtx_def*, rtx_def*, libcall_type, machine_mode, rtx_def*, machine_mode, rtx_def*, machine_mode) ../../gcc/rtl.h:4258 0xa3b4c8 expand_binop(machine_mode, optab_tag, rtx_def*, rtx_def*, rtx_def*, int, optab_methods) ../../gcc/optabs.c:1837 0x83bd01 expand_mult(machine_mode, rtx_def*, rtx_def*, rtx_def*, int, bool) ../../gcc/expmed.c:3571 0x858a04 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) ../../gcc/expr.c:9175 0x74af02 expand_gimple_stmt_1 ../../gcc/cfgexpand.c:3816 0x74af02 expand_gimple_stmt ../../gcc/cfgexpand.c:3877 0x74fb37 expand_gimple_basic_block ../../gcc/cfgexpand.c:5918 0x75219e execute ../../gcc/cfgexpand.c:6602