http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57896
--- Comment #5 from Vittorio Zecca <zeccav at gmail dot com> ---
Trying your vastly reduced test case, 152 lines vs 3057 of my original
test case, I am getting
an ICE in convert_move, at expr.c:452.
The following is my backtrace:
<command-line>: In function ‘__get_cpuid_max’:
<command-line>:1:1: internal compiler error: in convert_move, at expr.c:452
0x62ee1b convert_move(rtx_def*, rtx_def*, int)
../../gcc-4.8.1/gcc/expr.c:451
0x62f098 convert_modes(machine_mode, machine_mode, rtx_def*, int)
../../gcc-4.8.1/gcc/expr.c:781
0x9939dd ix86_legitimize_address
../../gcc-4.8.1/gcc/config/i386/i386.c:13276
0x619880 memory_address_addr_space(machine_mode, rtx_def*, unsigned char)
../../gcc-4.8.1/gcc/explow.c:461
0x60b5a4 change_address_1
../../gcc-4.8.1/gcc/emit-rtl.c:2021
0x671808 assign_parm_setup_stack
../../gcc-4.8.1/gcc/function.c:3234
0x671808 assign_parms
../../gcc-4.8.1/gcc/function.c:3416
0x67355f expand_function_start(tree_node*)
../../gcc-4.8.1/gcc/function.c:4824
0x58ac99 gimple_expand_cfg
../../gcc-4.8.1/gcc/cfgexpand.c:4552
Adding option -m32 I get ICE in ix86_expand_prologue, at
config/i386/i386.c:10559
