#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 *, ...);
void print_1d_array(int *x, int m) {
  if (x == NULL || m <= 0)
    return;
  for (int i = 0; i < m; ++i)
    printf("%3d", x[i]);
  printf("\n");
}


x86 assembly (clang, -O0):
<print_1d_array>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
cmpq   $0x0,-0x8(%rbp)
je     1134 <print_1d_array+0x24>
cmpl   $0x0,-0xc(%rbp)
jg     1139 <print_1d_array+0x29>
jmp    1181 <print_1d_array+0x71>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1173 <print_1d_array+0x63>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xea2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1140 <print_1d_array+0x30>
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_1d_array>:
test   %rdi,%rdi
je     116c <print_1d_array+0x4c>
test   %esi,%esi
jle    116c <print_1d_array+0x4c>
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rdi,%r15
mov    %esi,%r12d
lea    0xec2(%rip),%r14
xor    %ebx,%ebx
mov    (%r15,%rbx,4),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1140 <print_1d_array+0x20>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%3d\00"
@.str.1 = [2 x i8] c"\0A\00"
define void @print_1d_array(i32* %0, i32 %1) {
%3 = alloca i32*
%4 = alloca i32
%5 = alloca i32
store i32* %0, i32** %3
store i32 %1, i32* %4
%6 = load i32*, i32** %3
%7 = icmp eq i32* %6, null
br i1 %7, label %11, label %8
8: ; preds = %2
%9 = load i32, i32* %4
%10 = icmp sle i32 %9, 0
br i1 %10, label %11, label %12
11: ; preds = %8, %2
br label %29
12: ; preds = %8
store i32 0, i32* %5
br label %13
13: ; preds = %24, %12
%14 = load i32, i32* %5
%15 = load i32, i32* %4
%16 = icmp slt i32 %14, %15
br i1 %16, label %17, label %27
17: ; preds = %13
%18 = load i32*, i32** %3
%19 = load i32, i32* %5
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i32, i32* %18, i64 %20
%22 = load i32, i32* %21
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %22)
br label %24
24: ; preds = %17
%25 = load i32, i32* %5
%26 = add nsw i32 %25, 1
store i32 %26, i32* %5
br label %13
27: ; preds = %13
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %29
29: ; preds = %27, %11
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"%3d\00"
define void @print_1d_array(i32* %0, i32 %1) {
%3 = icmp eq i32* %0, null
%4 = icmp slt i32 %1, 1
%5 = or i1 %3, %4
br i1 %5, label %17, label %6
6: ; preds = %2
%7 = zext i32 %1 to i64
br label %10
8: ; preds = %10
%9 = tail call i32 @putchar(i32 10)
br label %17
10: ; preds = %6, %10
%11 = phi i64 [ 0, %6 ], [ %15, %10 ]
%12 = getelementptr inbounds i32, i32* %0, i64 %11
%13 = load i32, i32* %12
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %13)
%15 = add nuw nsw i64 %11, 1
%16 = icmp eq i64 %15, %7
br i1 %16, label %8, label %10
17: ; preds = %2, %8
ret void
}