https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102359
Bug ID: 102359
Summary: ICE gimplification failed since
r12-3433-ga25e0b5e6ac8a77a
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: qing.zhao at oracle dot com
Target Milestone: ---
The following fails:
$ cat cxx.cpp
struct A {
double a = 111;
auto foo() {
return [*this] { return a; };
}
};
int X = A{}.foo()();
$ g++ cxx.cpp -c -ftrivial-auto-var-init=zero
gimplification failed:
&__closure->__this <addr_expr 0x7ffff77396c0
type <pointer_type 0x7ffff7731000
type <record_type 0x7ffff7718930 A readonly needs-constructing
cxx-odr-p type_5 DF
size <integer_cst 0x7ffff75aff30 constant 64>
unit-size <integer_cst 0x7ffff75aff48 constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7ffff7718930 fields <function_decl 0x7ffff7736000 __dt > context
<translation_unit_decl 0x7ffff75bd168 cxx.cpp>
full-name "const struct A"
needs-constructor X() X(constX&) this=(X&) n_parents=0
use_template=0 interface-unknown
pointer_to_this <pointer_type 0x7ffff7718540> reference_to_this
<reference_type 0x7ffff77312a0>>
readonly sizes-gimplified unsigned DI size <integer_cst 0x7ffff75aff30
64> unit-size <integer_cst 0x7ffff75aff48 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7ffff7731000>
readonly
arg:0 <component_ref 0x7ffff7734690 type <record_type 0x7ffff7718930 A>
readonly
arg:0 <mem_ref 0x7ffff7737910 type <record_type 0x7ffff77185e8
._anon_0>
arg:0 <parm_decl 0x7ffff772c180 __closure>
arg:1 <integer_cst 0x7ffff7725e88 constant 0>
cxx.cpp:4:18 start: cxx.cpp:4:18 finish: cxx.cpp:4:18>
arg:1 <field_decl 0x7ffff75deab0 __this type <record_type
0x7ffff7718b28 A>
used nonlocal decl_7 DF cxx.cpp:4:14 size <integer_cst
0x7ffff75aff30 64> unit-size <integer_cst 0x7ffff75aff48 8>
align:64 warn_if_not_align:0 offset_align 128
offset <integer_cst 0x7ffff75aff60 constant 0>
bit-offset <integer_cst 0x7ffff75affa8 constant 0> context
<record_type 0x7ffff77182a0 ._anon_0> chain <function_decl 0x7ffff771c500
operator()>>
cxx.cpp:4:18 start: cxx.cpp:4:18 finish: cxx.cpp:4:18>>
cxx.cpp: In lambda function:
cxx.cpp:4:18: internal compiler error: gimplification failed
4 | return [*this] { return a; };
| ^
0xf2510a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marxin/Programming/gcc/gcc/gimplify.c:15569
0xf31e2b gimplify_modify_expr
/home/marxin/Programming/gcc/gcc/gimplify.c:5960
0xf2161f gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marxin/Programming/gcc/gcc/gimplify.c:14556
0xf2515c gimplify_stmt(tree_node**, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:7006
0xf25196 gimplify_and_add(tree_node*, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:494
0xf25706 gimplify_assign(tree_node*, tree_node*, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:16148
0xf33fc8 gimple_add_init_for_auto_var
/home/marxin/Programming/gcc/gcc/gimplify.c:1777
0xf33fc8 gimplify_decl_expr
/home/marxin/Programming/gcc/gcc/gimplify.c:1937
0xf21a03 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marxin/Programming/gcc/gcc/gimplify.c:14753
0xf2515c gimplify_stmt(tree_node**, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:7006
0xf22f33 gimplify_statement_list
/home/marxin/Programming/gcc/gcc/gimplify.c:1997
0xf22f33 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marxin/Programming/gcc/gcc/gimplify.c:15001
0xf2515c gimplify_stmt(tree_node**, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:7006
0xf25fd0 gimplify_bind_expr
/home/marxin/Programming/gcc/gcc/gimplify.c:1426
0xf21f1a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marxin/Programming/gcc/gcc/gimplify.c:14757
0xf2515c gimplify_stmt(tree_node**, gimple**)
/home/marxin/Programming/gcc/gcc/gimplify.c:7006
0xf275e3 gimplify_body(tree_node*, bool)
/home/marxin/Programming/gcc/gcc/gimplify.c:15802
0xf27a7c gimplify_function_tree(tree_node*)
/home/marxin/Programming/gcc/gcc/gimplify.c:15956
0xd5c037 cgraph_node::analyze()
/home/marxin/Programming/gcc/gcc/cgraphunit.c:670
0xd5ec77 analyze_functions
/home/marxin/Programming/gcc/gcc/cgraphunit.c:1234
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.
