https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112605
Bug ID: 112605
Summary: ICE: in gen_reg_rtx, at emit-rtl.cc:1176
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: iamanonymous.cs at gmail dot com
Target Milestone: ---
*******************************************************************************
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
*******************************************************************************
gcc version:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/root/gcc_set/202311021000/bin/gcc
COLLECT_LTO_WRAPPER=/root/gcc_set/202311021000/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc/configure --prefix=/root/gcc_set/202311021000
--with-gmp=/root/build_essential --with-mpfr=/root/build_essential
--with-mpc=/root/build_essential --enable-languages=c,c++ --disable-multilib
--with-sanitizer=address,undefined,thread,leak
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20231102 (experimental) (GCC)
git version: d508a94167c186b2baacc679896e2809554c0b99
*******************************************************************************
Program:
$ cat prog.c
int x;
int y;
void __attribute__((noinline)) f1(void)
{
x++;
}
static __attribute__((noinline)) void f3(void)
{
y++;
}
void f2()
{
f1();
f3();
f1();
}
*******************************************************************************
Command Lines:
$ gcc -c -O2 -mforce-indirect-call -fsplit-stack prog.c
during RTL pass: pro_and_epilogue
prog.c: In function ‘f3’:
prog.c:16:1: internal compiler error: in gen_reg_rtx, at emit-rtl.cc:1176
16 | }
| ^
0x7658e3 gen_reg_rtx(machine_mode)
../../gcc/gcc/emit-rtl.cc:1176
0xbcc1ae copy_to_mode_reg(machine_mode, rtx_def*)
../../gcc/gcc/explow.cc:650
0x14c9538 ix86_expand_call(rtx_def*, rtx_def*, rtx_def*, rtx_def*, rtx_def*,
bool)
../../gcc/gcc/config/i386/i386-expand.cc:9707
0x13d7702 ix86_expand_split_stack_prologue()
../../gcc/gcc/config/i386/i386.cc:10486
0x18fe57a gen_split_stack_prologue()
../../gcc/gcc/config/i386/i386.md:18094
0x13bea25 target_gen_split_stack_prologue
../../gcc/gcc/config/i386/i386.md:17849
0xc62e0a make_split_prologue_seq
../../gcc/gcc/function.cc:5785
0xc62e0a make_split_prologue_seq
../../gcc/gcc/function.cc:5778
0xc6301a thread_prologue_and_epilogue_insns()
../../gcc/gcc/function.cc:6039
0xc63752 rest_of_handle_thread_prologue_and_epilogue
../../gcc/gcc/function.cc:6543
0xc63752 execute
../../gcc/gcc/function.cc:6624
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.
