https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63384
Bug ID: 63384 Summary: ICE in moveup_expr_chached->sel_bb_head->bb_node with special options Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: andi-gcc at firstfloor dot org Created attachment 33585 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33585&action=edit test case (non minimized) The following combination of options causes an ICE with the attached test case: g++50 matrix.i -o outfile -O2 -fsel-sched-pipelining-outer-loops -fsel-sched-reschedule-pipelined -fvar-tracking-assignments-toggle -ftree-vectorize -fselective-scheduling2 gcc version 4.9.0 20130617 (experimental) (GCC) apps/matrixmultiply.cpp: In function 'T** make_test_matrix() [with T = float]': apps/matrixmultiply.cpp:22:1: internal compiler error: Segmentation fault } ^ 0x8cde37 crash_signal ../../gcc/gcc/toplev.c:333 0x6764e1 bb_note(basic_block_def*) ../../gcc/gcc/cfgrtl.c:647 0x89c1a1 sel_bb_head(basic_block_def*) ../../gcc/gcc/sel-sched-ir.c:4536 0x8a6fa5 moveup_expr_cached ../../gcc/gcc/sel-sched.c:2563 0x8ac506 move_op_ascend ../../gcc/gcc/sel-sched.c:6217 0x8aabc7 code_motion_path_driver ../../gcc/gcc/sel-sched.c:6706 0x8aca54 move_op ../../gcc/gcc/sel-sched.c:6758 0x8aca54 move_exprs_to_boundary ../../gcc/gcc/sel-sched.c:5292 0x8aca54 schedule_expr_on_boundary ../../gcc/gcc/sel-sched.c:5504 0x8af552 fill_insns ../../gcc/gcc/sel-sched.c:5646 0x8af552 schedule_on_fences ../../gcc/gcc/sel-sched.c:7410 0x8af552 sel_sched_region_2 ../../gcc/gcc/sel-sched.c:7544 0x8b14bf sel_sched_region_1 ../../gcc/gcc/sel-sched.c:7583 0x8b14bf sel_sched_region(int) ../../gcc/gcc/sel-sched.c:7684 0x8b1fc1 run_selective_scheduling() ../../gcc/gcc/sel-sched.c:7760 0x895b56 rest_of_handle_sched2 ../../gcc/gcc/sched-rgn.c:3606