#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*/ printf(char *);
int /*<<< orphan*/ test1();
int /*<<< orphan*/ test2();
int /*<<< orphan*/ test3();
int /*<<< orphan*/ test4();
int main(void) {
  printf("\n============== Test 1 ================\n");
  test1();
  printf("\n============== Test 2 ================\n");
  test2();
  printf("\n============== Test 3 ================\n");
  test3();
  printf("\n============== Test 4 ================\n");
  test4();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe9a(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1040 <test1@plt>
lea    0xeb0(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1070 <test2@plt>
lea    0xec6(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1030 <test3@plt>
lea    0xedc(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1060 <test4@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xea8(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
call   1050 <test1@plt>
lea    0xebd(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
call   1070 <test2@plt>
lea    0xed2(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
call   1040 <test3@plt>
lea    0xee7(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
call   1060 <test4@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [41 x i8] c"\0A============== Test 1 ================\0A\00"
@.str.1 = [41 x i8] c"\0A============== Test 2 ================\0A\00"
@.str.2 = [41 x i8] c"\0A============== Test 3 ================\0A\00"
@.str.3 = [41 x i8] c"\0A============== Test 4 ================\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @printf(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str, i64 0, i64 0))
%3 = call i32 (...) @test1()
%4 = call i32 @printf(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 (...) @test2()
%6 = call i32 @printf(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (...) @test3()
%8 = call i32 @printf(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 (...) @test4()
ret i32 0
}

LLVM IR (-O2):
@str = [40 x i8] c"\0A============== Test 1 ================\00"
@str.4 = [40 x i8] c"\0A============== Test 2 ================\00"
@str.5 = [40 x i8] c"\0A============== Test 3 ================\00"
@str.6 = [40 x i8] c"\0A============== Test 4 ================\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 (...) @test1()
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @str.4, i64 0, i64 0))
%4 = tail call i32 (...) @test2()
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @str.5, i64 0, i64 0))
%6 = tail call i32 (...) @test3()
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @str.6, i64 0, i64 0))
%8 = tail call i32 (...) @test4()
ret i32 0
}