https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94991
Bug ID: 94991
Summary: ICE: Segmentation fault with option
-mgeneral-regs-only
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: felix.yang at huawei dot com
Target Milestone: ---
Target: aarch64
Yet another ICE with -mgeneral-regs-only:
foo.c
struct S { float d; };
void bar (struct S);
void
f0 (int x)
{
struct S s = {.d = 0.0f };
((char *) &s.d)[0] = x;
s.d *= 7.0;
bar (s);
}
$aarch64-linux-gnu-gcc -S -O2 -mgeneral-regs-only foo.c
pr99999.c: In function ‘f0’:
pr99999.c:8:12: error: ‘-mgeneral-regs-only’ is incompatible with the use of
floating-point types
8 | struct S s = {.d = 0.0f };
| ^
pr99999.c:10:7: error: ‘-mgeneral-regs-only’ is incompatible with the use of
floating-point types
10 | s.d *= 7.0;
| ~~~~^~~~~~
pr99999.c:10:7: error: ‘-mgeneral-regs-only’ is incompatible with the use of
floating-point types
pr99999.c:10:7: error: ‘-mgeneral-regs-only’ is incompatible with the use of
floating-point types during RTL pass: expand
pr99999.c:10:7: internal compiler error: Segmentation fault 0x12a7a0b
crash_signal
../../gcc-git/gcc/toplev.c:328
0xb05a70 single_set(rtx_insn const*)
../../gcc-git/gcc/rtl.h:3437
0xd1dd2f emit_move_insn(rtx_def*, rtx_def*)
../../gcc-git/gcc/expr.c:3858
0xb5c837 emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type,
machine_mode, int, std::pair<rtx_def*, machine_mode>*)
../../gcc-git/gcc/calls.c:5597
0xb42dab emit_library_call_value(rtx_def*, rtx_def*, libcall_type,
machine_mode, rtx_def*, machine_mode, rtx_def*, machine_mode)
../../gcc-git/gcc/rtl.h:4257
0x10f0ff3 expand_binop(machine_mode, optab_tag, rtx_def*, rtx_def*, rtx_def*,
int, optab_methods)
../../gcc-git/gcc/optabs.c:1831
0xd05133 expand_mult(machine_mode, rtx_def*, rtx_def*, rtx_def*, int, bool)
../../gcc-git/gcc/expmed.c:3568
0xd3291f expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
../../gcc-git/gcc/expr.c:9046
0xd36c0f expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc-git/gcc/expr.c:10054
0xd2f2e3 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
../../gcc-git/gcc/expr.c:8358
0xd10943 expand_normal
../../gcc-git/gcc/expr.h:288
0xd29ecb store_field
../../gcc-git/gcc/expr.c:7102
0xd2256b expand_assignment(tree_node*, tree_node*, bool)
../../gcc-git/gcc/expr.c:5374
0xb82f1b expand_gimple_stmt_1
../../gcc-git/gcc/cfgexpand.c:3749
0xb83387 expand_gimple_stmt
../../gcc-git/gcc/cfgexpand.c:3847
0xb8ba73 expand_gimple_basic_block
../../gcc-git/gcc/cfgexpand.c:5887
0xb8d8d3 execute
../../gcc-git/gcc/cfgexpand.c:6542
