https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120709
Bug ID: 120709
Summary: ICE in expand_builtin_crc_table_based with
__builtin_crc8_data8
Product: gcc
Version: 15.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: qingren2hxb at gmail dot com
Target Milestone: ---
Created attachment 61664
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61664&action=edit
bug report by using -freport-bug
Input
===========
#include <stdint.h>
uint8_t crc8_data8(uint8_t crc, uint8_t data, uint8_t polynomial) {
return __builtin_crc8_data8(crc, data, polynomial);
}
int main() {
uint8_t crc8 = crc8_data8(0x00, 0xAA, 0x07);
return 0;
}
===========
Output
===========
$gcc -
during RTL pass: expand
test.c: In function 'crc8_data8':
test.c:4:10: internal compiler error: in expand_builtin_crc_table_based, at
builtins.cc:7803
4 | return __builtin_crc8_data8(crc, data, polynomial);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x2157cc5 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x2167ecf internal_error(char const*, ...)
???:0
0x7e9f61 fancy_abort(char const*, int, char const*)
???:0
0xa82569 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
???:0
0xa8e7fc store_expr(tree_node*, rtx_def*, int, bool, bool)
???:0
0xa90ed3 expand_assignment(tree_node*, tree_node*, bool)
???:0
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.
===========
GCC: gcc version 15.1.0
Target: x86_64-linux-gnu
GCC crashes with an ICE when compiling code where __builtin_crc8_data8 is
wrapped in the crc8_data8 function.
