#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 RAND_MAX;
int /*<<< orphan*/ printf(char *, int);
int rand();
int main(void) {
  printf("rand() will return values from 0 up through %d\n", RAND_MAX);
  for (int i = 0; i < 5; i++)
    printf("%d\n", rand());
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2eb2(%rip),%rax
mov    (%rax),%esi
lea    0xec1(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x8(%rbp)
cmpl   $0x5,-0x8(%rbp)
jge    1178 <main+0x58>
mov    $0x0,%al
call   1040 <rand@plt>
mov    %eax,%esi
lea    0xec7(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    114b <main+0x2b>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    0x2ec0(%rip),%rax
mov    (%rax),%esi
lea    0xecf(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <rand@plt>
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [48 x i8] c"rand() will return values from 0 up through %d\0A\00"
@RAND_MAX = global i32 0
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = load i32, i32* @RAND_MAX
%4 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str, i64 0, i64 0), i32 %3)
store i32 0, i32* %2
br label %5
5: ; preds = %11, %0
%6 = load i32, i32* %2
%7 = icmp slt i32 %6, 5
br i1 %7, label %8, label %14
8: ; preds = %5
%9 = call i32 (...) @rand()
%10 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %9)
br label %11
11: ; preds = %8
%12 = load i32, i32* %2
%13 = add nsw i32 %12, 1
store i32 %13, i32* %2
br label %5
14: ; preds = %5
%15 = load i32, i32* %1
ret i32 %15
}

LLVM IR (-O2):
@.str = [48 x i8] c"rand() will return values from 0 up through %d\0A\00"
@RAND_MAX = global i32 0
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = load i32, i32* @RAND_MAX
%2 = tail call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 (...) @rand()
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 (...) @rand()
%6 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = tail call i32 (...) @rand()
%8 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %7)
%9 = tail call i32 (...) @rand()
%10 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %9)
%11 = tail call i32 (...) @rand()
%12 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %11)
ret i32 0
}