#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 rand();
int /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ srand(int);
int main(void) {
  int i, seed;
  printf("This program displays the first five values of "
         "rand.\n");
  for (;;) {
    for (i = 0; i < 5; i++)
      printf("%d ", rand());
    printf("\n\n");
    printf("Enter new seed value (0 to terminate): ");
    scanf("%d", &seed);
    if (seed == 0)
      break;
    srand(seed);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x8(%rbp)
cmpl   $0x5,-0x8(%rbp)
jge    1193 <main+0x53>
mov    $0x0,%al
call   1060 <rand@plt>
mov    %eax,%esi
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1164 <main+0x24>
lea    0xea0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe95(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeaf(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
cmpl   $0x0,-0xc(%rbp)
jne    11ce <main+0x8e>
jmp    11db <main+0x9b>
mov    -0xc(%rbp),%edi
call   1040 <srand@plt>
jmp    115d <main+0x1d>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xecb(%rip),%rdi
call   1030 <puts@plt>
lea    0xe90(%rip),%rbx
lea    0xeed(%rip),%r14
lea    0xe86(%rip),%r15
lea    0xea7(%rip),%r12
lea    0xc(%rsp),%r13
nopw   0x0(%rax,%rax,1)
xor    %eax,%eax
call   1070 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
call   1070 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
call   1070 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
call   1070 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
call   1070 <rand@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %r14,%rdi
call   1030 <puts@plt>
mov    %r15,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %r12,%rdi
mov    %r13,%rsi
call   1060 <scanf@plt>
mov    0xc(%rsp),%edi
test   %edi,%edi
je     121e <main+0xce>
call   1050 <srand@plt>
jmp    1190 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [54 x i8] c"This program displays the first five values of rand.\0A\00"
@.str.1 = [4 x i8] c"%d \00"
@.str.2 = [3 x i8] c"\0A\0A\00"
@.str.3 = [40 x i8] c"Enter new seed value (0 to terminate): \00"
@.str.4 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str, i64 0, i64 0))
br label %5
5: ; preds = %22, %0
store i32 0, i32* %2
br label %6
6: ; preds = %12, %5
%7 = load i32, i32* %2
%8 = icmp slt i32 %7, 5
br i1 %8, label %9, label %15
9: ; preds = %6
%10 = call i32 (...) @rand()
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %10)
br label %12
12: ; preds = %9
%13 = load i32, i32* %2
%14 = add nsw i32 %13, 1
store i32 %14, i32* %2
br label %6
15: ; preds = %6
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.3, i64 0, i64 0))
%18 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %3)
%19 = load i32, i32* %3
%20 = icmp eq i32 %19, 0
br i1 %20, label %21, label %22
21: ; preds = %15
br label %25
22: ; preds = %15
%23 = load i32, i32* %3
%24 = call i32 @srand(i32 %23)
br label %5
25: ; preds = %21
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%d \00"
@.str.3 = [40 x i8] c"Enter new seed value (0 to terminate): \00"
@.str.4 = [3 x i8] c"%d\00"
@str = [53 x i8] c"This program displays the first five values of rand.\00"
@str.5 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([53 x i8], [53 x i8]* @str, i64 0, i64 0))
br label %4
4: ; preds = %20, %0
%5 = call i32 (...) @rand()
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = call i32 (...) @rand()
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %7)
%9 = call i32 (...) @rand()
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %9)
%11 = call i32 (...) @rand()
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %11)
%13 = call i32 (...) @rand()
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str.5, i64 0, i64 0))
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @.str.3, i64 0, i64 0))
%17 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %1)
%18 = load i32, i32* %1
%19 = icmp eq i32 %18, 0
br i1 %19, label %22, label %20
20: ; preds = %4
%21 = call i32 @srand(i32 %18)
br label %4
22: ; preds = %4
ret i32 0
}