https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87541
Bug ID: 87541
Summary: ICE using a constant decl as an attribute alloc_size
argument
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
Similar to bug 79984, using a named constant in an alloc_size argument causes
an ICE in C++.
$ cat x.c && gcc -S -Wall x.c
const int r = 1;
__attribute__ ((alloc_size (r))) void* f (int);
void* g (void)
{
void *p = f (1);
__builtin___memset_chk (p, 0, 1, __builtin_object_size (p, 1));
return p;
}
during RTL pass: expand
x.c: In function ‘void* g()’:
x.c:7:15: internal compiler error: tree check: expected integer_cst, have
var_decl in initialize_argument_information, at calls.c:2059
void *p = f (1);
~~^~~
0x15f600e tree_check_failed(tree_node const*, char const*, int, char const*,
...)
/src/gcc/8-branch/gcc/tree.c:9333
0x81ca71 tree_int_cst_elt_check(tree_node*, int, char const*, int, char const*)
/src/gcc/8-branch/gcc/tree.h:3335
0xc03e68 initialize_argument_information
/src/gcc/8-branch/gcc/calls.c:2059
0xc0a4f4 expand_call(tree_node*, rtx_def*, int)
/src/gcc/8-branch/gcc/calls.c:3723
0xdc9f69 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/src/gcc/8-branch/gcc/expr.c:11008
0xdbca98 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
/src/gcc/8-branch/gcc/expr.c:8233
0xdb1e8a store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
/src/gcc/8-branch/gcc/expr.c:5635
0xdb03d4 expand_assignment(tree_node*, tree_node*, bool)
/src/gcc/8-branch/gcc/expr.c:5403
0xc274b7 expand_call_stmt
/src/gcc/8-branch/gcc/cfgexpand.c:2688
0xc2a7a8 expand_gimple_stmt_1
/src/gcc/8-branch/gcc/cfgexpand.c:3624
0xc2ae82 expand_gimple_stmt
/src/gcc/8-branch/gcc/cfgexpand.c:3790
0xc32f95 expand_gimple_basic_block
/src/gcc/8-branch/gcc/cfgexpand.c:5819
0xc348ee execute
/src/gcc/8-branch/gcc/cfgexpand.c:6425
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.
