#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 /*<<< orphan*/ qsort(int *, int /*<<< orphan*/, int);
int main(int argc, char *argv[]) {
  int a[] = {4, 5, 7, 2, 1, 3};
  qsort(a, 0, 5);
  int i;
  printf("in main\n");
  for (i = 0; i < 5; i++) {
    printf("%d\n", a[i]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    0xec3(%rip),%rax
mov    %rax,-0x30(%rbp)
mov    0xec0(%rip),%rax
mov    %rax,-0x28(%rbp)
mov    0xebd(%rip),%rax
mov    %rax,-0x20(%rbp)
lea    -0x30(%rbp),%rdi
xor    %esi,%esi
mov    $0x5,%edx
call   1030 <qsort@plt>
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x34(%rbp)
cmpl   $0x5,-0x34(%rbp)
jge    11aa <main+0x8a>
movslq -0x34(%rbp),%rax
mov    -0x30(%rbp,%rax,4),%esi
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x34(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x34(%rbp)
jmp    117c <main+0x5c>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x20,%rsp
mov    0xed4(%rip),%rax
mov    %rax,0x10(%rsp)
movaps 0xeb8(%rip),%xmm0
movaps %xmm0,(%rsp)
mov    %rsp,%rdi
xor    %esi,%esi
mov    $0x5,%edx
call   1040 <qsort@plt>
lea    0xeba(%rip),%rdi
call   1030 <puts@plt>
mov    (%rsp),%esi
lea    0xea7(%rip),%rbx
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x4(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x8(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0xc(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x10(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbx
ret

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

LLVM IR (-O2):
@__const.main.a = [6 x i32] [i32 4, i32 5, i32 7, i32 2, i32 1, i32 3]
@.str.1 = [4 x i8] c"%d\0A\00"
@str = [8 x i8] c"in main\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca [6 x i32]
%4 = bitcast [6 x i32]* %3 to i8*
%5 = getelementptr inbounds [6 x i32], [6 x i32]* %3, i64 0, i64 0
%6 = call i32 @qsort(i32* %5, i32 0, i32 5)
%7 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @str, i64 0, i64 0))
%8 = load i32, i32* %5
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %8)
%10 = getelementptr inbounds [6 x i32], [6 x i32]* %3, i64 0, i64 1
%11 = load i32, i32* %10
%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 = getelementptr inbounds [6 x i32], [6 x i32]* %3, i64 0, i64 2
%14 = load i32, i32* %13
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %14)
%16 = getelementptr inbounds [6 x i32], [6 x i32]* %3, i64 0, i64 3
%17 = load i32, i32* %16
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %17)
%19 = getelementptr inbounds [6 x i32], [6 x i32]* %3, i64 0, i64 4
%20 = load i32, i32* %19
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %20)
ret i32 0
}