https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87283
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 44679 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44679&action=edit A testcase ./lto1 -quiet -dumpdir ./ -dumpbase gromacs.ltrans2 -mtune=generic -march=x86-64 -mtune=generic -march=x86-64 -auxbase-strip gromacs.ltrans2.ltrans.o -O2 -O2 -version -fno-openmp -fno-openacc -fno-pie -ffast-math -fwhole-program -fuse-linker-plugin -fltrans /tmp/gromacs.ltrans2.o -o gromacs.ltrans2.s GNU GIMPLE (GCC) version 9.0.0 20180911 (experimental) (x86_64-pc-linux-gnu) compiled by GNU C version 8.2.1 20180726 (Red Hat 8.2.1-1), GMP version 6.1.2, MPFR version 3.1.6-p2, MPC version 1.0.2, isl version isl-0.16.1-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU GIMPLE (GCC) version 9.0.0 20180911 (experimental) (x86_64-pc-linux-gnu) compiled by GNU C version 8.2.1 20180726 (Red Hat 8.2.1-1), GMP version 6.1.2, MPFR version 3.1.6-p2, MPC version 1.0.2, isl version isl-0.16.1-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 during GIMPLE pass: recip sim_util.c: In function ‘do_force.constprop’: sim_util.c:189:6: internal compiler error: in remove, at alloc-pool.h:433 0x9858fb base_pool_allocator<memory_block_pool>::remove(void*) /export/gnu/import/git/sources/gcc/gcc/alloc-pool.h:433 0x120cc1e object_allocator<occurrence>::remove(occurrence*) /export/gnu/import/git/sources/gcc/gcc/alloc-pool.h:521 0x1201b97 free_bb /export/gnu/import/git/sources/gcc/gcc/tree-ssa-math-opts.c:523 0x1202ae9 execute_cse_reciprocals_1 /export/gnu/import/git/sources/gcc/gcc/tree-ssa-math-opts.c:840 0x1202e1d execute /export/gnu/import/git/sources/gcc/gcc/tree-ssa-math-opts.c:923 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.
