#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*/ O_RDONLY;
int /*<<< orphan*/ atoi(char *);
int /*<<< orphan*/ atoll(char *);
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int open(char *, int /*<<< orphan*/);
scalar_t__ partx_add_partition(int, int /*<<< orphan*/, int /*<<< orphan*/,
                               int /*<<< orphan*/);
int /*<<< orphan*/ perror(char *);
int /*<<< orphan*/ stderr;
int main(int argc, char **argv) {
  int fd;
  if (argc != 5) {
    fprintf(stderr, "usage: %s diskdevice partitionnr start length\n", argv[0]);
    exit(1);
  }
  if ((fd = open(argv[1], O_RDONLY)) < 0) {
    perror(argv[1]);
    exit(1);
  }
  if (partx_add_partition(fd, atoi(argv[2]), atoll(argv[3]), atoll(argv[4]))) {
    perror("BLKPG");
    exit(1);
  }
  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   $0x5,-0x8(%rbp)
je     11b6 <main+0x46>
mov    0x2e41(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe59(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%edi
call   1090 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
mov    0x2e23(%rip),%rax
mov    (%rax),%esi
call   1060 <open@plt>
mov    %eax,-0x14(%rbp)
cmp    $0x0,%eax
jge    11ef <main+0x7f>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1070 <perror@plt>
mov    $0x1,%edi
call   1090 <exit@plt>
mov    -0x14(%rbp),%eax
mov    %eax,-0x20(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
call   1080 <atoi@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdi
call   1030 <atoll@plt>
mov    %eax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x20(%rax),%rdi
call   1030 <atoll@plt>
mov    -0x20(%rbp),%edi
mov    -0x1c(%rbp),%esi
mov    -0x18(%rbp),%edx
mov    %eax,%ecx
call   1050 <partx_add_partition@plt>
cmp    $0x0,%rax
je     1252 <main+0xe2>
lea    0xdec(%rip),%rdi
call   1070 <perror@plt>
mov    $0x1,%edi
call   1090 <exit@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %rsi,%rbx
cmp    $0x5,%edi
jne    11d9 <main+0x69>
mov    0x8(%rbx),%rdi
mov    0x2e5e(%rip),%rax
mov    (%rax),%esi
call   1060 <open@plt>
test   %eax,%eax
js     11fb <main+0x8b>
mov    %eax,%ebp
mov    0x10(%rbx),%rdi
call   1080 <atoi@plt>
mov    %eax,%r14d
mov    0x18(%rbx),%rdi
call   1030 <atoll@plt>
mov    %eax,%r15d
mov    0x20(%rbx),%rdi
call   1030 <atoll@plt>
mov    %ebp,%edi
mov    %r14d,%esi
mov    %r15d,%edx
mov    %eax,%ecx
call   1050 <partx_add_partition@plt>
test   %rax,%rax
jne    1201 <main+0x91>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret
mov    0x2df8(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%rdx
lea    0xe14(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%edi
call   1090 <exit@plt>
mov    0x8(%rbx),%rdi
jmp    1208 <main+0x98>
lea    0xe27(%rip),%rdi
call   1070 <perror@plt>
mov    $0x1,%edi
call   1090 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [47 x i8] c"usage: %s diskdevice partitionnr start length\0A\00"
@O_RDONLY = global i32 0
@.str.1 = [6 x i8] c"BLKPG\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 ne i32 %7, 5
br i1 %8, label %9, label %16
9: ; preds = %2
%10 = load i32, i32* @stderr
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 0
%13 = load i8*, i8** %12
%14 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i8* %13)
%15 = call i32 @exit(i32 1)
unreachable
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = load i32, i32* @O_RDONLY
%21 = call i32 @open(i8* %19, i32 %20)
store i32 %21, i32* %6
%22 = icmp slt i32 %21, 0
br i1 %22, label %23, label %29
23: ; preds = %16
%24 = load i8**, i8*** %5
%25 = getelementptr inbounds i8*, i8** %24, i64 1
%26 = load i8*, i8** %25
%27 = call i32 @perror(i8* %26)
%28 = call i32 @exit(i32 1)
unreachable
29: ; preds = %16
%30 = load i32, i32* %6
%31 = load i8**, i8*** %5
%32 = getelementptr inbounds i8*, i8** %31, i64 2
%33 = load i8*, i8** %32
%34 = call i32 @atoi(i8* %33)
%35 = load i8**, i8*** %5
%36 = getelementptr inbounds i8*, i8** %35, i64 3
%37 = load i8*, i8** %36
%38 = call i32 @atoll(i8* %37)
%39 = load i8**, i8*** %5
%40 = getelementptr inbounds i8*, i8** %39, i64 4
%41 = load i8*, i8** %40
%42 = call i32 @atoll(i8* %41)
%43 = call i64 @partx_add_partition(i32 %30, i32 %34, i32 %38, i32 %42)
%44 = icmp ne i64 %43, 0
br i1 %44, label %45, label %48
45: ; preds = %29
%46 = call i32 @perror(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0))
%47 = call i32 @exit(i32 1)
unreachable
48: ; preds = %29
ret i32 0
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [47 x i8] c"usage: %s diskdevice partitionnr start length\0A\00"
@O_RDONLY = global i32 0
@.str.1 = [6 x i8] c"BLKPG\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 5
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = load i8*, i8** %1
%7 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i8* %6)
%8 = tail call i32 @exit(i32 1)
unreachable
9: ; preds = %2
%10 = getelementptr inbounds i8*, i8** %1, i64 1
%11 = load i8*, i8** %10
%12 = load i32, i32* @O_RDONLY
%13 = tail call i32 @open(i8* %11, i32 %12)
%14 = icmp slt i32 %13, 0
br i1 %14, label %15, label %19
15: ; preds = %9
%16 = load i8*, i8** %10
%17 = tail call i32 @perror(i8* %16)
%18 = tail call i32 @exit(i32 1)
unreachable
19: ; preds = %9
%20 = getelementptr inbounds i8*, i8** %1, i64 2
%21 = load i8*, i8** %20
%22 = tail call i32 @atoi(i8* %21)
%23 = getelementptr inbounds i8*, i8** %1, i64 3
%24 = load i8*, i8** %23
%25 = tail call i32 @atoll(i8* %24)
%26 = getelementptr inbounds i8*, i8** %1, i64 4
%27 = load i8*, i8** %26
%28 = tail call i32 @atoll(i8* %27)
%29 = tail call i64 @partx_add_partition(i32 %13, i32 %22, i32 %25, i32 %28)
%30 = icmp eq i64 %29, 0
br i1 %30, label %34, label %31
31: ; preds = %19
%32 = tail call i32 @perror(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0))
%33 = tail call i32 @exit(i32 1)
unreachable
34: ; preds = %19
ret i32 0
}