https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120246
Bug ID: 120246
Summary: ICE: tree check: expected class type, have exceptional
(error_mark) in fold_const_call_1, at
fold-const-call.cc:1569
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: rundongyang22 at m dot fudan.edu.cn
Target Milestone: ---
Created attachment 61410
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61410&action=edit
The preprocessed source(with -save-temp)
# gcc Version & System Type & Configure Option
$ $CC -v
Using built-in specs.
COLLECT_GCC=/home/liuyu/Desktop/gcc-13/bin/gcc
COLLECT_LTO_WRAPPER=/home/liuyu/Desktop/gcc-13/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.1.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --disable-multilib --enable-languages=c,c++
--prefix=/home/liuyu/Desktop/bin
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.1.0 (GCC)
# Compiler Output
$CC -save-temps 2042.c
2042.c:11:1: warning: ‘const’ attribute on function returning ‘void’
[-Wattributes]
11 | __attribute__((const)) void print_args(const char *format, ...) {
| ^~~~~~~~~~~~~
2042.c: In function ‘print_args’:
2042.c:30:28: error: conflicting types for ‘num’; have ‘double’
30 | double num = va_arg(args, double);
| ^~~
2042.c:25:25: note: previous definition of ‘num’ with type ‘int’
25 | int num = va_arg(args, int);
| ^~~
2042.c:26:21: internal compiler error: tree check: expected class ‘type’, have
‘exceptional’ (error_mark) in fold_const_call_1, at fold-const-call.cc:1569
26 | printf("%d", num);
| ^~~~~~~~~~~~~~~~~
0x19dcb2a tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
../../gcc/tree.cc:8931
0xc3ae27 tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
../../gcc/tree.h:3663
0x10da774 fold_const_call_1
../../gcc/fold-const-call.cc:1569
0x10db6f2 fold_const_call(combined_fn, tree_node*, tree_node*, tree_node*)
../../gcc/fold-const-call.cc:1745
0xe55af6 fold_builtin_2
../../gcc/builtins.cc:9785
0xe5616f fold_builtin_n
../../gcc/builtins.cc:9949
0xe56813 fold_call_expr(unsigned int, tree_node*, bool)
../../gcc/builtins.cc:10047
0x1182954 gimplify_call_expr
../../gcc/gimplify.cc:3684
0x11bc932 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16348
0x118fbbc gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7219
0x117d35e gimplify_statement_list
../../gcc/gimplify.cc:2019
0x11be993 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16821
0x118fbbc gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7219
0x117b13a gimplify_bind_expr
../../gcc/gimplify.cc:1430
0x11bd7ec gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16577
0x118fbbc gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7219
0x117d35e gimplify_statement_list
../../gcc/gimplify.cc:2019
0x11be993 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16821
0x118fbbc gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7219
0x117f0c2 gimplify_switch_expr
../../gcc/gimplify.cc:2716
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
