#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 */
typedef int /*<<< orphan*/ m;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, ...);
void use_pointer(int m[]) {
  int *p, i;
  printf("use pointer:\n");
  printf("size of m:%d\n", sizeof(m));
  printf("first value of m:%d\n", *m);
  for (p = m; p < (m + 10); p++) {
    printf("%d ", *p);
  }
  m = m + 3;
  printf("\n%d", *m);
}


x86 assembly (clang, -O0):
<use_pointer>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xedd(%rip),%rdi
mov    $0x8,%esi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rax
mov    (%rax),%esi
lea    0xed2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rax
mov    -0x8(%rbp),%rcx
add    $0x28,%rcx
cmp    %rcx,%rax
jae    1193 <use_pointer+0x83>
mov    -0x10(%rbp),%rax
mov    (%rax),%esi
lea    0xeb6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%rax
add    $0x4,%rax
mov    %rax,-0x10(%rbp)
jmp    1159 <use_pointer+0x49>
mov    -0x8(%rbp),%rax
add    $0xc,%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
mov    (%rax),%esi
lea    0xe89(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<use_pointer>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xefd(%rip),%rdi
call   1030 <puts@plt>
lea    0xec6(%rip),%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    (%rbx),%esi
lea    0xebf(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    (%rbx),%esi
lea    0xec4(%rip),%r14
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x4(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x14(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x18(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x1c(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x20(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x24(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rbx),%esi
lea    0xe3f(%rip),%rdi
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1040 <printf@plt>

LLVM IR (-O0):
@.str = [14 x i8] c"use pointer:\0A\00"
@.str.1 = [14 x i8] c"size of m:%d\0A\00"
@.str.2 = [21 x i8] c"first value of m:%d\0A\00"
@.str.3 = [4 x i8] c"%d \00"
@.str.4 = [4 x i8] c"\0A%d\00"
define void @use_pointer(i32* %0) {
%2 = alloca i32*
%3 = alloca i32*
%4 = alloca i32
store i32* %0, i32** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i64 8)
%7 = load i32*, i32** %2
%8 = load i32, i32* %7
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.2, i64 0, i64 0), i32 %8)
%10 = load i32*, i32** %2
store i32* %10, i32** %3
br label %11
11: ; preds = %20, %1
%12 = load i32*, i32** %3
%13 = load i32*, i32** %2
%14 = getelementptr inbounds i32, i32* %13, i64 10
%15 = icmp ult i32* %12, %14
br i1 %15, label %16, label %23
16: ; preds = %11
%17 = load i32*, i32** %3
%18 = load i32, i32* %17
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %18)
br label %20
20: ; preds = %16
%21 = load i32*, i32** %3
%22 = getelementptr inbounds i32, i32* %21, i32 1
store i32* %22, i32** %3
br label %11
23: ; preds = %11
%24 = load i32*, i32** %2
%25 = getelementptr inbounds i32, i32* %24, i64 3
store i32* %25, i32** %2
%26 = load i32*, i32** %2
%27 = load i32, i32* %26
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i32 %27)
ret void
}

LLVM IR (-O2):
@.str.1 = [14 x i8] c"size of m:%d\0A\00"
@.str.2 = [21 x i8] c"first value of m:%d\0A\00"
@.str.3 = [4 x i8] c"%d \00"
@.str.4 = [4 x i8] c"\0A%d\00"
@str = [13 x i8] c"use pointer:\00"
define void @use_pointer(i32* nocapture %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i64 8)
%4 = load i32, i32* %0
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str.2, i64 0, i64 0), i32 %4)
%6 = load i32, i32* %0
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %6)
%8 = getelementptr inbounds i32, i32* %0, i64 1
%9 = load i32, i32* %8
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %9)
%11 = getelementptr inbounds i32, i32* %0, i64 2
%12 = load i32, i32* %11
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %12)
%14 = getelementptr inbounds i32, i32* %0, i64 3
%15 = load i32, i32* %14
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %15)
%17 = getelementptr inbounds i32, i32* %0, i64 4
%18 = load i32, i32* %17
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %18)
%20 = getelementptr inbounds i32, i32* %0, i64 5
%21 = load i32, i32* %20
%22 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %21)
%23 = getelementptr inbounds i32, i32* %0, i64 6
%24 = load i32, i32* %23
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %24)
%26 = getelementptr inbounds i32, i32* %0, i64 7
%27 = load i32, i32* %26
%28 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %27)
%29 = getelementptr inbounds i32, i32* %0, i64 8
%30 = load i32, i32* %29
%31 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %30)
%32 = getelementptr inbounds i32, i32* %0, i64 9
%33 = load i32, i32* %32
%34 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %33)
%35 = load i32, i32* %14
%36 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i32 %35)
ret void
}