https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108792
Bug ID: 108792 Summary: [10/11/12/13 Regression] ICE in reset_sched_cycles_in_current_ebb, at sel-sched.cc:7147 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started with r10 between 20191110 and 20191117 (one week before pr97972), at -O2+ and with special option -march=amdfam10 : Testcase was derived from llvm-project-llvmorg-14.0.6/openmp/libomptarget/test/mapping/declare_mapper_nested_default_mappers_complex_structure.cpp $ cat z1.cc class A { public: A() { a = 1; b = 2; } void show() { __builtin_printf ("\n"); __builtin_printf ("%d %d\n", a, b); } int a; int b; }; class B { public: B() { arr = new A[2]; len = 2; } void show() { for (int i = 0; i < len; i++) arr[i].show(); } A *arr; int len; }; void foo (void) { B *x = new B[2]; for (int i = 0; i < 2; i++) x[i].show(); return; } $ gcc-13-20230212 -c z1.cc -O2 -fnon-call-exceptions -fprofile-generate -fsel-sched-pipelining -fselective-scheduling2 $ $ gcc-13-20230212 -c z1.cc -O2 -fnon-call-exceptions -fprofile-generate -fsel-sched-pipelining -fselective-scheduling2 -march=amdfam10 during RTL pass: sched2 z1.cc: In member function 'void B::show()': z1.cc:23:3: internal compiler error: in reset_sched_cycles_in_current_ebb, at sel-sched.cc:7147 23 | } | ^ 0x11f60c5 reset_sched_cycles_in_current_ebb ../../gcc/sel-sched.cc:7147 0x11f60c5 sel_region_target_finish ../../gcc/sel-sched.cc:7220 0x11f60c5 sel_region_finish ../../gcc/sel-sched.cc:7276 0x11f60c5 sel_sched_region(int) ../../gcc/sel-sched.cc:7645 0x11f62f9 run_selective_scheduling() ../../gcc/sel-sched.cc:7720 0x11d2475 rest_of_handle_sched2 ../../gcc/sched-rgn.cc:3743 0x11d2475 execute ../../gcc/sched-rgn.cc:3890