Comment 82 for bug 1890435

Ok, 20200507 almost immediately triggered the ICE

/root/qemu-5.0/linux-user/syscall.c: In function ‘do_syscall1’:
/root/qemu-5.0/linux-user/syscall.c:12479:1: internal compiler error: Segmentation fault
12479 | }
      | ^

0x5518cb crash_signal
 ../../gcc/gcc/toplev.c:328
0x542673 avoid_constant_pool_reference(rtx_def*)
 ../../gcc/gcc/simplify-rtx.c:237
0x515cad commutative_operand_precedence(rtx_def*)
 ../../gcc/gcc/rtlanal.c:3482
0x515d6b swap_commutative_operands_p(rtx_def*, rtx_def*)
 ../../gcc/gcc/rtlanal.c:3543
0x53cacb simplify_binary_operation(rtx_code, machine_mode, rtx_def*, rtx_def*)
 ../../gcc/gcc/simplify-rtx.c:2333
0x53cb19 simplify_gen_binary(rtx_code, machine_mode, rtx_def*, rtx_def*)
 ../../gcc/gcc/simplify-rtx.c:189
0x44d033 lra_constraints(bool)
 ../../gcc/gcc/lra-constraints.c:4964
0x440653 lra(_IO_FILE*)
 ../../gcc/gcc/lra.c:2440
0x411f05 do_reload
 ../../gcc/gcc/ira.c:5523
0x411f05 execute
 ../../gcc/gcc/ira.c:5709

This triggered on the first build. While waiting for some builds between r10-6080 and 20200507 I'll rerun this version to get some stats on how early to expect it.