https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94121
Bug ID: 94121
Summary: ICE on aarch64-linux-gnu: in abs_hwi, at hwint.h:324
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: lizekun1 at huawei dot com
Target Milestone: ---
I find an ICE when testing GCC10.0 on aarch64 at -O2 -fpie with POC below:
---
#define DIFF_MAX __PTRDIFF_MAX__
#define DIFF_MIN (-DIFF_MAX - 1)
extern
void foo ();
void test_global_char_array (void)
{
extern char gcar3[1];
char *p = gcar3;
foo (&p[DIFF_MIN]);
}
---
GCC version:
gcc version 10.0.1 20200302 (experimental)
Runcommand:
gcc poc.c -O2 -fpie -fno-diagnostics-show-caret -S -o poc.s
Stack dump:
internal compiler error: in abs_hwi, at hwint.h:324
0xf477f3 abs_hwi(long)
gcc-10.0/gcc/hwint.h:324
0x18078ef aarch64_add_offset_1
gcc-10.0/gcc/config/aarch64/aarch64.c:3716
0x18089bf aarch64_add_offset
gcc-10.0/gcc/config/aarch64/aarch64.c:4002
0x180a7df aarch64_expand_mov_immediate(rtx_def*, rtx_def*)
gcc-10.0/gcc/config/aarch64/aarch64.c:4632
0x1d0f87b gen_movdi(rtx_def*, rtx_def*)
gcc-10.0/gcc/config/aarch64/aarch64.md:1196
0xd9547b insn_gen_fn::operator()(rtx_def*, rtx_def*) const
gcc-10.0/gcc/recog.h:317
0xd6e813 emit_move_insn_1(rtx_def*, rtx_def*)
gcc-10.0/gcc/expr.c:3754
0xd6ee2f emit_move_insn(rtx_def*, rtx_def*)
gcc-10.0/gcc/expr.c:3850
0xba4d9f load_register_parameters
gcc-10.0/gcc/calls.c:3147
0xba8ac3 expand_call(tree_node*, rtx_def*, int)
gcc-10.0/gcc/calls.c:4593
0xd8e0bf expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
gcc-10.0/gcc/expr.c:11130
0xd80d57 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
gcc-10.0/gcc/expr.c:8353
0xbc50d7 expand_expr
gcc-10.0/gcc/expr.h:282
0xbcf023 expand_call_stmt
gcc-10.0/gcc/cfgexpand.c:2703
0xbd2783 expand_gimple_stmt_1
gcc-10.0/gcc/cfgexpand.c:3682
0xbd2ef7 expand_gimple_stmt
gcc-10.0/gcc/cfgexpand.c:3847
0xbd2fff expand_gimple_tailcall
gcc-10.0/gcc/cfgexpand.c:3893
0xbdbb4b expand_gimple_basic_block
gcc-10.0/gcc/cfgexpand.c:5864
0xbddaf7 execute
gcc-10.0/gcc/cfgexpand.c:6542
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.
