#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ SIGCHLD;
int /*<<< orphan*/ SIGINT;
int /*<<< orphan*/ SIGQUIT;
int /*<<< orphan*/ SIGTERM;
int /*<<< orphan*/ SIGTSTP;
int /*<<< orphan*/ SIG_DFL;
int /*<<< orphan*/ signal(int /*<<< orphan*/, int /*<<< orphan*/);
void sig_dfl(void) {
  signal(SIGINT, SIG_DFL);
  signal(SIGQUIT, SIG_DFL);
  signal(SIGTSTP, SIG_DFL);
  if (!0)
    signal(SIGTERM, SIG_DFL);
  signal(SIGCHLD, SIG_DFL);
}


x86 assembly (clang, -O0):
<sig_dfl>:
push   %rbp
mov    %rsp,%rbp
mov    0x2ecd(%rip),%rax
mov    (%rax),%edi
mov    0x2e94(%rip),%rax
mov    (%rax),%esi
call   1030 <signal@plt>
mov    0x2ea6(%rip),%rax
mov    (%rax),%edi
mov    0x2e7d(%rip),%rax
mov    (%rax),%esi
call   1030 <signal@plt>
mov    0x2e7f(%rip),%rax
mov    (%rax),%edi
mov    0x2e66(%rip),%rax
mov    (%rax),%esi
call   1030 <signal@plt>
mov    0x2e80(%rip),%rax
mov    (%rax),%edi
mov    0x2e4f(%rip),%rax
mov    (%rax),%esi
call   1030 <signal@plt>
mov    0x2e59(%rip),%rax
mov    (%rax),%edi
mov    0x2e38(%rip),%rax
mov    (%rax),%esi
call   1030 <signal@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<sig_dfl>:
push   %rbx
mov    0x2ed0(%rip),%rax
mov    (%rax),%edi
mov    0x2e97(%rip),%rbx
mov    (%rbx),%esi
call   1030 <signal@plt>
mov    0x2ea9(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%esi
call   1030 <signal@plt>
mov    0x2e89(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%esi
call   1030 <signal@plt>
mov    0x2e91(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%esi
call   1030 <signal@plt>
mov    0x2e71(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%esi
pop    %rbx
jmp    1030 <signal@plt>

LLVM IR (-O0):
@SIGINT = global i32 0
@SIG_DFL = global i32 0
@SIGQUIT = global i32 0
@SIGTSTP = global i32 0
@SIGTERM = global i32 0
@SIGCHLD = global i32 0
define void @sig_dfl() {
%1 = load i32, i32* @SIGINT
%2 = load i32, i32* @SIG_DFL
%3 = call i32 @signal(i32 %1, i32 %2)
%4 = load i32, i32* @SIGQUIT
%5 = load i32, i32* @SIG_DFL
%6 = call i32 @signal(i32 %4, i32 %5)
%7 = load i32, i32* @SIGTSTP
%8 = load i32, i32* @SIG_DFL
%9 = call i32 @signal(i32 %7, i32 %8)
%10 = load i32, i32* @SIGTERM
%11 = load i32, i32* @SIG_DFL
%12 = call i32 @signal(i32 %10, i32 %11)
%13 = load i32, i32* @SIGCHLD
%14 = load i32, i32* @SIG_DFL
%15 = call i32 @signal(i32 %13, i32 %14)
ret void
}

LLVM IR (-O2):
@SIGINT = global i32 0
@SIG_DFL = global i32 0
@SIGQUIT = global i32 0
@SIGTSTP = global i32 0
@SIGTERM = global i32 0
@SIGCHLD = global i32 0
define void @sig_dfl() {
%1 = load i32, i32* @SIGINT
%2 = load i32, i32* @SIG_DFL
%3 = tail call i32 @signal(i32 %1, i32 %2)
%4 = load i32, i32* @SIGQUIT
%5 = load i32, i32* @SIG_DFL
%6 = tail call i32 @signal(i32 %4, i32 %5)
%7 = load i32, i32* @SIGTSTP
%8 = load i32, i32* @SIG_DFL
%9 = tail call i32 @signal(i32 %7, i32 %8)
%10 = load i32, i32* @SIGTERM
%11 = load i32, i32* @SIG_DFL
%12 = tail call i32 @signal(i32 %10, i32 %11)
%13 = load i32, i32* @SIGCHLD
%14 = load i32, i32* @SIG_DFL
%15 = tail call i32 @signal(i32 %13, i32 %14)
ret void
}