https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115920
Bug ID: 115920
Summary: ICE: in tree_to_poly_int64, at tree.cc:3319
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: iamanonymous.cs at gmail dot com
Target Milestone: ---
Target: x86_64
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The compiler produces an internal error during tree_to_poly_int64 when
compiling the provided code with the specified options.
The issue can also be reproduced on Compiler Explorer.
*******************************************************************************
OS and Platform:
# uname -a
Linux ubuntu 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
x86_64 x86_64 x86_64 GNU/Linux
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# gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/root/gdbtest/gcc/gcc-15/libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /root/gdbtest/gcc/obj/../gcc/configure
--prefix=/root/gdbtest/gcc/gcc-15 --enable-languages=c,c++,fortran,go
--disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 20240509 (experimental) (GCC)
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Program:
# cat source_code_1.c
struct s {
int i;
char c[];
};
const struct s s = { .c = "0", };
const struct s *const r = &(constexpr struct s) { .c = "1", };
const struct s *const t = &(static struct s) { .c = "2", };
size_t ice(void)
{
return __builtin_object_size(t, 1);
}
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Command Lines:
# gcc source_code_1.c -O2 -Wall -Wextra -pedantic -std=c99 -fstrict-aliasing
-Wshadow -Wconversion -Wsign-conversion -Wcast-align -Wformat=2
-Wnull-dereference -Wstrict-overflow=5 -Wdouble-promotion -Wduplicated-cond
-Wduplicated-branches -Wlogical-op -Wuseless-cast -Wno-gnu-anonymous-struct
-Wno-non-standard-layout -Wno-variadic-macros -o source_code_1.o
source_code_1.c:7:27: warning: initialization of a flexible array member
[-Wpedantic]
7 | const struct s s = { .c = "0", };
| ^~~
source_code_1.c:7:27: note: (near initialization for ‘s.c’)
source_code_1.c:7:14: warning: initialization of a flexible array member
[-Wpedantic]
7 | const struct s s = { .c = "0", };
| ^
source_code_1.c:7:14: note: (near initialization for ‘s’)
source_code_1.c:8:29: error: ‘constexpr’ undeclared here (not in a function)
8 | const struct s *const r = &(constexpr struct s) { .c = "1", };
| ^~~~~~~~~
source_code_1.c:8:38: error: expected ‘)’ before ‘struct’
8 | const struct s *const r = &(constexpr struct s) { .c = "1", };
| ~ ^~~~~~~
| )
source_code_1.c:8:49: error: expected ‘,’ or ‘;’ before ‘{’ token
8 | const struct s *const r = &(constexpr struct s) { .c = "1", };
| ^
source_code_1.c:8:62: warning: ISO C does not allow extra ‘;’ outside of a
function [-Wpedantic]
8 | const struct s *const r = &(constexpr struct s) { .c = "1", };
| ^
source_code_1.c:9:53: warning: initialization of a flexible array member
[-Wpedantic]
9 | const struct s *const t = &(static struct s) { .c = "2", };
| ^~~
source_code_1.c:9:53: note: (near initialization for ‘(anonymous).c’)
source_code_1.c:9:43: warning: initialization of a flexible array member
[-Wpedantic]
9 | const struct s *const t = &(static struct s) { .c = "2", };
| ^
source_code_1.c:9:43: note: (near initialization for ‘(anonymous)’)
source_code_1.c:9:46: warning: ISO C forbids storage class specifiers in
compound literals before C23 [-Wpedantic]
9 | const struct s *const t = &(static struct s) { .c = "2", };
| ^
source_code_1.c:11:1: error: unknown type name ‘size_t’
11 | size_t ice(void)
| ^~~~~~
source_code_1.c:1:1: note: ‘size_t’ is defined in header ‘<stddef.h>’; this is
probably fixable by adding ‘#include <stddef.h>’
+++ |+#include <stddef.h>
1 |
source_code_1.c: In function ‘ice’:
source_code_1.c:13:12: warning: conversion from ‘long unsigned int’ to ‘int’
may change value [-Wconversion]
13 | return __builtin_object_size(t, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
source_code_1.c:13:12: internal compiler error: in tree_to_poly_int64, at
tree.cc:3313
0x8bd846 tree_to_poly_int64(tree_node const*)
/root/gdbtest/gcc/obj/../gcc/gcc/tree.cc:3313
0x8bd846 tree_to_poly_int64(tree_node const*)
/root/gdbtest/gcc/obj/../gcc/gcc/tree.cc:3311
0x13e4767 component_ref_size(tree_node*, special_array_member*)
/root/gdbtest/gcc/obj/../gcc/gcc/tree.cc:13344
0x115ea3d decl_init_size(tree_node*, bool)
/root/gdbtest/gcc/obj/../gcc/gcc/tree-object-size.cc:482
0x115fcb5 addr_object_size
/root/gdbtest/gcc/obj/../gcc/gcc/tree-object-size.cc:557
0xb2b4e4 fold_builtin_object_size
/root/gdbtest/gcc/obj/../gcc/gcc/builtins.cc:11638
0xb2b4e4 fold_builtin_2
/root/gdbtest/gcc/obj/../gcc/gcc/builtins.cc:10667
0xb2b4e4 fold_builtin_n
/root/gdbtest/gcc/obj/../gcc/gcc/builtins.cc:10779
0xd7d736 gimplify_call_expr
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:4099
0xd64036 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:17856
0xd63f4e gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:17990
0xd87e47 gimplify_modify_expr
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:6506
0xd63cb6 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:17887
0xd663a6 gimplify_stmt(tree_node**, gimple**)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:7581
0xd744e0 gimplify_and_add(tree_node*, gimple**)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:515
0xd744e0 gimplify_return_expr
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:1910
0xd6448c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:18149
0xd663a6 gimplify_stmt(tree_node**, gimple**)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:7581
0xd674a6 gimplify_bind_expr
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:1641
0xd64064 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/root/gdbtest/gcc/obj/../gcc/gcc/gimplify.cc:18088
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.
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Also ICE on trunk, compiler explorer:https://godbolt.org/z/dP97Wc9bK
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