******************************************************************************* OS and Platform: CentOS Linux release 7.9.2009 (Core), x86_64 GNU/Linux ******************************************************************************* gcc -v Using built-in specs. COLLECT_GCC=/home/gcc-releases/gcc-13-0701/bin/gcc COLLECT_LTO_WRAPPER=/home/gcc-releases/gcc-13-0701/libexec/gcc/x86_64-pc-linux-gnu/13.1.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ./configure --prefix=/home/gcc-releases/gcc-13-0701/ --disable-multilib --enable-languages=c,c++ Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.1.1 20230701 (GCC) ******************************************************************************* Command Lines: /home/gcc-releases/gcc-13-0701/bin/gcc -I /home/csmith_record/include/csmith-2.3.0/ -O3 -fno-aggressive-loop-optimizations -fno-align-functions -fno-align-jumps -fno-align-labels -fno-align-loops -fno-allocation-dce -fno-asynchronous-unwind-tables -fno-auto-inc-dec -fno-bit-tests -fno-branch-count-reg -fno-caller-saves -fno-code-hoisting -fno-combine-stack-adjustments -fno-compare-elim -fno-cprop-registers -fno-crossjumping -fno-cse-follow-jumps -fno-dce -fno-defer-pop -fno-devirtualize -fno-devirtualize-speculatively -fno-dse -fno-early-inlining -fno-expensive-optimizations -fno-forward-propagate -fno-fp-int-builtin-inexact -fno-function-cse -fno-gcse -fno-gcse-after-reload -fno-gcse-lm -fno-guess-branch-probability -fno-hoist-adjacent-loads -fno-if-conversion -fno-if-conversion2 -fno-indirect-inlining -fno-inline -fno-inline-atomics -fno-inline-functions -fno-inline-functions-called-once -fno-inline-small-functions -fno-ipa-bit-cp -fno-ipa-cp -fno-ipa-cp-clone -fno-ipa-icf -fno-ipa-icf-functions -fno-ipa-icf-variables -fno-ipa-modref -fno-ipa-profile -fno-ipa-pure-const -fno-ipa-ra -fno-ipa-reference -fno-ipa-reference-addressable -fno-ipa-sra -fno-ipa-stack-alignment -fno-ipa-strict-aliasing -fno-ipa-vrp -fno-ira-hoist-pressure -fno-ira-share-save-slots -fno-ira-share-spill-slots -fno-isolate-erroneous-paths-dereference -fno-ivopts -fno-jump-tables -fno-lifetime-dse -fno-loop-interchange -fno-loop-unroll-and-jam -fno-lra-remat -fno-math-errno -fno-move-loop-invariants -fno-move-loop-stores -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-optimize-strlen -fno-partial-inlining -fno-peel-loops -fno-peephole -fno-peephole2 -fno-plt -fno-predictive-commoning -fno-printf-return-value -fno-ree -fno-reg-struct-return -fno-reorder-blocks -fno-reorder-blocks-and-partition -fno-reorder-functions -fno-rerun-cse-after-loop -fno-sched-critical-path-heuristic -fno-sched-dep-count-heuristic -fno-sched-group-heuristic -fno-sched-interblock -fno-sched-last-insn-heuristic -fno-sched-rank-heuristic -fno-sched-spec -fno-sched-spec-insn-heuristic -fno-sched-stalled-insns-dep -fno-schedule-fusion -fno-schedule-insns2 -fno-semantic-interposition -fno-short-enums -fno-shrink-wrap -fno-shrink-wrap-separate -fno-signed-zeros -fno-split-ivs-in-unroller -fno-split-loops -fno-split-paths -fno-split-wide-types -fno-ssa-backprop -fno-ssa-phiopt -fno-stdarg-opt -fno-store-merging -fno-strict-aliasing -fno-thread-jumps -fno-toplevel-reorder -fno-trapping-math -fno-tree-bit-ccp -fno-tree-builtin-call-dce -fno-tree-ccp -fno-tree-ch -fno-tree-coalesce-vars -fno-tree-copy-prop -fno-tree-dce -fno-tree-dominator-opts -fno-tree-dse -fno-tree-forwprop -fno-tree-fre -fno-tree-loop-distribute-patterns -fno-tree-loop-distribution -fno-tree-loop-im -fno-tree-loop-ivcanon -fno-tree-loop-optimize -fno-tree-loop-vectorize -fno-tree-partial-pre -fno-tree-phiprop -fno-tree-pre -fno-tree-pta -fno-tree-reassoc -fno-tree-scev-cprop -fno-tree-sink -fno-tree-slp-vectorize -fno-tree-slsr -fno-tree-sra -fno-tree-switch-conversion -fno-tree-tail-merge -fno-tree-ter -fno-tree-vrp -fno-unroll-completely-grow-size -fno-unroll-loops -fno-unswitch-loops -fno-unwind-tables -fno-version-loops-for-strides -fno-allow-store-data-races -fno-associative-math -fno-branch-probabilities -fno-conserve-stack -fno-cx-fortran-rules -fno-cx-limited-range -fno-delayed-branch -fno-delete-dead-exceptions -fno-finite-loops -fno-finite-math-only -fno-float-store -fno-gcse-las -fno-gcse-sm -fno-graphite -fno-graphite-identity -fno-harden-compares -fno-harden-conditional-branches -fno-ipa-pta -fno-ira-loop-pressure -fno-isolate-erroneous-paths-attribute -fno-keep-gc-roots-live -fno-limit-function-alignment -fno-live-range-shrinkage -fno-loop-nest-optimize -fno-loop-parallelize-all -fno-modulo-sched -fno-modulo-sched-allow-regmoves -fno-non-call-exceptions -fno-opt-info -fno-pack-struct -fno-profile-partial-training -fno-profile-reorder-functions -fno-reciprocal-math -fno-rename-registers -fno-reschedule-modulo-scheduled-loops -fno-rounding-math -fno-save-optimization-record -fno-sched-pressure -fno-sched-spec-load -fno-sched-spec-load-dangerous -fno-sched-stalled-insns -fno-sched2-use-superblocks -fno-schedule-insns -fno-section-anchors -fno-sel-sched-pipelining -fno-sel-sched-pipelining-outer-loops -fno-sel-sched-reschedule-pipelined -fno-selective-scheduling -fno-selective-scheduling2 -fno-short-wchar -fno-signaling-nans -fno-single-precision-constant -fno-split-wide-types-early -fno-stack-clash-protection -fno-tracer -fno-trapv -fno-tree-cselim -fno-tree-lrs -fno-tree-vectorize -fno-unconstrained-commons -fno-unreachable-traps -fno-unroll-all-loops -fno-unsafe-math-optimizations -fno-var-tracking -fno-var-tracking-assignments -fno-var-tracking-assignments-toggle -fno-var-tracking-uninit -fno-variable-expansion-in-unroller -fno-vpt -fno-web -fno-wrapv -fno-wrapv-pointer -gno-statement-frontiers -finline -finline-functions-called-once -fmove-loop-invariants -fsched-interblock -fshrink-wrap-separate -fno-signed-zeros -fsplit-ivs-in-unroller -fsplit-loops -fno-split-paths -fsplit-wide-types -fssa-backprop -fno-ssa-phiopt -fno-stdarg-opt -fno-store-merging -fstrict-aliasing -fno-thread-jumps -ftoplevel-reorder -ftrapping-math -fno-tree-bit-ccp -fno-tree-builtin-call-dce -fno-tree-ccp -ftree-ch -ftree-coalesce-vars -fno-tree-copy-prop -ftree-dce -fno-tree-dominator-opts -ftree-dse -fno-tree-forwprop -fno-tree-fre -ftree-loop-distribute-patterns -fno-tree-loop-distribution -fno-tree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize -ftree-loop-vectorize -fno-tree-partial-pre -ftree-phiprop -fno-tree-pre -fno-tree-pta -fno-tree-reassoc -ftree-scev-cprop -fno-tree-sink -fno-tree-slp-vectorize -fno-tree-slsr -ftree-sra -ftree-switch-conversion -ftree-tail-merge -fno-tree-ter -fno-tree-vrp -funroll-completely-grow-size -funroll-loops -funswitch-loops -funwind-tables -fno-version-loops-for-strides -fallow-store-data-races -fno-associative-math -fno-branch-probabilities -fno-conserve-stack -fcx-fortran-rules -fno-cx-limited-range -fno-delayed-branch -fdelete-dead-exceptions -fno-finite-loops -ffinite-math-only -ffloat-store -fgcse-las -fno-gcse-sm -fno-graphite -fgraphite-identity -fharden-compares -fno-harden-conditional-branches -fipa-pta -fira-loop-pressure -fno-isolate-erroneous-paths-attribute -fkeep-gc-roots-live -flimit-function-alignment -fno-live-range-shrinkage -fno-loop-nest-optimize -fno-loop-parallelize-all -fno-modulo-sched -fmodulo-sched-allow-regmoves -fnon-call-exceptions -fopt-info -fpack-struct -fno-profile-partial-training -fno-profile-reorder-functions -fno-reciprocal-math -frename-registers -fno-reschedule-modulo-scheduled-loops -frounding-math -fno-save-optimization-record -fno-sched-pressure -fno-sched-spec-load -fno-sched-spec-load-dangerous -fsched-stalled-insns -fno-sched2-use-superblocks -fschedule-insns -fno-section-anchors -fsel-sched-pipelining -fno-sel-sched-pipelining-outer-loops -fsel-sched-reschedule-pipelined -fselective-scheduling -fno-selective-scheduling2 -fno-short-wchar -fno-signaling-nans -fsingle-precision-constant -fsplit-wide-types-early -fno-stack-clash-protection -fno-tracer -fno-trapv -fno-tree-cselim -ftree-lrs -ftree-vectorize -fno-unconstrained-commons -funreachable-traps -funroll-all-loops -fno-unsafe-math-optimizations -fvar-tracking -fno-var-tracking-assignments -fvar-tracking-assignments-toggle -fno-var-tracking-uninit -fno-variable-expansion-in-unroller -fno-vpt -fweb -fwrapv -fno-wrapv-pointer -gstatement-frontiers ./big.c ******************************************************************************* Error Messages: internal compiler error: Segmentation fault 466 | } | ^ 0xcbeddf crash_signal ../.././gcc/toplev.cc:314 0xc88564 moving_insn_creates_bookkeeping_block_p ../.././gcc/sel-sched.cc:2031 0xc88564 moveup_expr ../.././gcc/sel-sched.cc:2199 0xc88564 moveup_expr_cached ../.././gcc/sel-sched.cc:2544 0xc8d55e move_op_ascend ../.././gcc/sel-sched.cc:6149 0xc8a9bf code_motion_path_driver ../.././gcc/sel-sched.cc:6648 0xc8ae56 code_motion_process_successors ../.././gcc/sel-sched.cc:6342 0xc8ae56 code_motion_path_driver ../.././gcc/sel-sched.cc:6608 0xc8d7a9 move_op ../.././gcc/sel-sched.cc:6702 0xc8d7a9 move_exprs_to_boundary ../.././gcc/sel-sched.cc:5223 0xc8d7a9 schedule_expr_on_boundary ../.././gcc/sel-sched.cc:5436 0xc8ec69 fill_insns ../.././gcc/sel-sched.cc:5578 0xc8ec69 schedule_on_fences ../.././gcc/sel-sched.cc:7353 0xc8ec69 sel_sched_region_2 ../.././gcc/sel-sched.cc:7491 0xc9085b sel_sched_region_1 ../.././gcc/sel-sched.cc:7533 0xc921f7 sel_sched_region(int) ../.././gcc/sel-sched.cc:7634 0xc921f7 sel_sched_region(int) ../.././gcc/sel-sched.cc:7619 0xc929b9 run_selective_scheduling() ../.././gcc/sel-sched.cc:7720 0xc7709c rest_of_handle_sched ../.././gcc/sched-rgn.cc:3729 0xc7709c execute ../.././gcc/sched-rgn.cc:3841 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.
Created attachment 55458 [details] The preprocessed file
Created attachment 55459 [details] The compiler output
Thanks for these bug reports, they are very useful. I will note -fselective-scheduling is one of the less tested parts of GCC as it is not default for any target except for ia64 (and ia64 is one of the least tested targets really). So don't be shocked that most of these -fselective-scheduling issues are not fixed any time soon and don't be shocked when these issues are closed as won't fix when -fselective-scheduling support is removed .