[Bug rtl-optimization/82396] [8 Regression] qsort comparator non-negative on sorted output: 4 in ready_sort_real in haifa scheduler

[sje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82396

Steve Ellcey <sje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #10 from Steve Ellcey <sje at gcc dot gnu.org> ---
I am still seeing a build failure on aarch64.

/home/sellcey/cavium-pr-27386/obj/gcc/aarch64-unknown-linux-gnu/libstdc++-v3/include/bits/deque.tcc:626:7:
error: qsort comparator non-negative on sorted output: 8
       }
       ^
during RTL pass: sched2
/home/sellcey/cavium-pr-27386/obj/gcc/aarch64-unknown-linux-gnu/libstdc++-v3/include/bits/deque.tcc:626:7:
internal compiler error: qsort checking failed
0x5e3aaf qsort_chk_error
        ../../../src/gcc/gcc/vec.c:222
0x14edcb7 qsort_chk(void*, unsigned long, unsigned long, int (*)(void const*,
void const*))
        ../../../src/gcc/gcc/vec.c:274
0x1400727 ready_sort_real
        ../../../src/gcc/gcc/haifa-sched.c:3087
0x1406c03 schedule_block(basic_block_def**, void*)
        ../../../src/gcc/gcc/haifa-sched.c:6749
0xd846eb schedule_region
        ../../../src/gcc/gcc/sched-rgn.c:3174
0xd846eb schedule_insns()
        ../../../src/gcc/gcc/sched-rgn.c:3513
0xd84b6b schedule_insns()
        ../../../src/gcc/gcc/sched-rgn.c:3498
0xd84b6b rest_of_handle_sched2
        ../../../src/gcc/gcc/sched-rgn.c:3737
0xd84b6b execute
        ../../../src/gcc/gcc/sched-rgn.c:3873