#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 atoi(char *);
int /*<<< orphan*/ bose(int);
int /*<<< orphan*/ printf(char *);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("Usage:\n");
    printf("\t bose-nelson <n>\n");
    printf("\t\twhere n is the number of items to sort\n");
    return (-1);
  }
  int n = atoi(argv[1]);
  bose(n);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    1180 <main+0x50>
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
lea    0xea5(%rip),%rdi
call   1030 <printf@plt>
lea    0xeac(%rip),%rdi
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    119f <main+0x6f>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1050 <atoi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%edi
call   1040 <bose@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x1,%edi
jg     1161 <main+0x31>
lea    0xec3(%rip),%rdi
call   1030 <puts@plt>
lea    0xebe(%rip),%rdi
call   1030 <puts@plt>
lea    0xec4(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffff,%eax
pop    %rcx
ret
mov    0x8(%rsi),%rdi
call   1050 <atoi@plt>
mov    %eax,%edi
call   1040 <bose@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [19 x i8] c"\09 bose-nelson <n>\0A\00"
@.str.2 = [42 x i8] c"\09\09where n is the number of items to sort\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp slt i32 %7, 2
br i1 %8, label %9, label %13
9: ; preds = %2
%10 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0))
%12 = call i32 @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.2, i64 0, i64 0))
store i32 -1, i32* %3
br label %20
13: ; preds = %2
%14 = load i8**, i8*** %5
%15 = getelementptr inbounds i8*, i8** %14, i64 1
%16 = load i8*, i8** %15
%17 = call i32 @atoi(i8* %16)
store i32 %17, i32* %6
%18 = load i32, i32* %6
%19 = call i32 @bose(i32 %18)
store i32 0, i32* %3
br label %20
20: ; preds = %13, %9
%21 = load i32, i32* %3
ret i32 %21
}

LLVM IR (-O2):
@str = [7 x i8] c"Usage:\00"
@str.3 = [18 x i8] c"\09 bose-nelson <n>\00"
@str.4 = [41 x i8] c"\09\09where n is the number of items to sort\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %8
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str.3, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str.4, i64 0, i64 0))
br label %13
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 1
%10 = load i8*, i8** %9
%11 = tail call i32 @atoi(i8* %10)
%12 = tail call i32 @bose(i32 %11)
br label %13
13: ; preds = %8, %4
%14 = phi i32 [ -1, %4 ], [ 0, %8 ]
ret i32 %14
}