#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);
int /*<<< orphan*/ sleep(int);
void write_memory(void *shared_memory) {
  int i;
  for (i = 0; i < 10; i++) {
    *((int *)shared_memory) = i * i;
    printf("Parent: initial value = %2d\n", i);
    sleep(1);
  }
}


x86 assembly (clang, -O0):
<write_memory>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0xa,-0xc(%rbp)
jge    1171 <write_memory+0x51>
mov    -0xc(%rbp),%ecx
imul   -0xc(%rbp),%ecx
mov    -0x8(%rbp),%rax
mov    %ecx,(%rax)
mov    -0xc(%rbp),%esi
lea    0xeac(%rip),%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1133 <write_memory+0x13>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<write_memory>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
movl   $0x0,(%rdi)
lea    0xecc(%rip),%r14
mov    %r14,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x1,(%rbx)
mov    %r14,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x4,(%rbx)
mov    %r14,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x9,(%rbx)
mov    %r14,%rdi
mov    $0x3,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x10,(%rbx)
mov    %r14,%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x19,(%rbx)
mov    %r14,%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x24,(%rbx)
mov    %r14,%rdi
mov    $0x6,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x31,(%rbx)
mov    %r14,%rdi
mov    $0x7,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x40,(%rbx)
mov    %r14,%rdi
mov    $0x8,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1040 <sleep@plt>
movl   $0x51,(%rbx)
mov    %r14,%rdi
mov    $0x9,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1040 <sleep@plt>

LLVM IR (-O0):
@.str = [29 x i8] c"Parent: initial value = %2d\0A\00"
define void @write_memory(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
store i8* %0, i8** %2
store i32 0, i32* %3
br label %4
4: ; preds = %16, %1
%5 = load i32, i32* %3
%6 = icmp slt i32 %5, 10
br i1 %6, label %7, label %19
7: ; preds = %4
%8 = load i32, i32* %3
%9 = load i32, i32* %3
%10 = mul nsw i32 %8, %9
%11 = load i8*, i8** %2
%12 = bitcast i8* %11 to i32*
store i32 %10, i32* %12
%13 = load i32, i32* %3
%14 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 %13)
%15 = call i32 @sleep(i32 1)
br label %16
16: ; preds = %7
%17 = load i32, i32* %3
%18 = add nsw i32 %17, 1
store i32 %18, i32* %3
br label %4
19: ; preds = %4
ret void
}

LLVM IR (-O2):
@.str = [29 x i8] c"Parent: initial value = %2d\0A\00"
define void @write_memory(i8* nocapture writeonly %0) {
%2 = bitcast i8* %0 to i32*
store i32 0, i32* %2
%3 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 0)
%4 = tail call i32 @sleep(i32 1)
store i32 1, i32* %2
%5 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 1)
%6 = tail call i32 @sleep(i32 1)
store i32 4, i32* %2
%7 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 2)
%8 = tail call i32 @sleep(i32 1)
store i32 9, i32* %2
%9 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 3)
%10 = tail call i32 @sleep(i32 1)
store i32 16, i32* %2
%11 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 4)
%12 = tail call i32 @sleep(i32 1)
store i32 25, i32* %2
%13 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 5)
%14 = tail call i32 @sleep(i32 1)
store i32 36, i32* %2
%15 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 6)
%16 = tail call i32 @sleep(i32 1)
store i32 49, i32* %2
%17 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 7)
%18 = tail call i32 @sleep(i32 1)
store i32 64, i32* %2
%19 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 8)
%20 = tail call i32 @sleep(i32 1)
store i32 81, i32* %2
%21 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 9)
%22 = tail call i32 @sleep(i32 1)
ret void
}