#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*/ issd_compute(char *, char *, int /*<<< orphan*/);
int /*<<< orphan*/ issd_compute_destroy();
int /*<<< orphan*/ issd_compute_init();
int /*<<< orphan*/ printf(char *);
int main(int argc, char *argv[]) {
  if (argc <= 2) {
    printf("usage:./issdOp ifname ofname");
    return 0;
  }
  issd_compute_init();
  issd_compute(argv[1], argv[2], 0);
  issd_compute_destroy();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jg     1178 <main+0x38>
lea    0xe99(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
jmp    11a4 <main+0x64>
mov    $0x0,%al
call   1050 <issd_compute_init@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rsi
xor    %edx,%edx
call   1040 <issd_compute@plt>
mov    $0x0,%al
call   1060 <issd_compute_destroy@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jg     1154 <main+0x14>
lea    0xeb3(%rip),%rdi
call   1030 <printf@plt>
jmp    1174 <main+0x34>
mov    %rsi,%rbx
xor    %eax,%eax
call   1050 <issd_compute_init@plt>
mov    0x8(%rbx),%rdi
mov    0x10(%rbx),%rsi
xor    %edx,%edx
call   1040 <issd_compute@plt>
xor    %eax,%eax
call   1060 <issd_compute_destroy@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [29 x i8] c"usage:./issdOp ifname ofname\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp sle i32 %6, 2
br i1 %7, label %8, label %10
8: ; preds = %2
%9 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %3
br label %20
10: ; preds = %2
%11 = call i32 (...) @issd_compute_init()
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 1
%14 = load i8*, i8** %13
%15 = load i8**, i8*** %5
%16 = getelementptr inbounds i8*, i8** %15, i64 2
%17 = load i8*, i8** %16
%18 = call i32 @issd_compute(i8* %14, i8* %17, i32 0)
%19 = call i32 (...) @issd_compute_destroy()
store i32 0, i32* %3
br label %20
20: ; preds = %10, %8
%21 = load i32, i32* %3
ret i32 %21
}

LLVM IR (-O2):
@.str = [29 x i8] c"usage:./issdOp ifname ofname\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 3
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
br label %14
6: ; preds = %2
%7 = tail call i32 (...) @issd_compute_init()
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = getelementptr inbounds i8*, i8** %1, i64 2
%11 = load i8*, i8** %10
%12 = tail call i32 @issd_compute(i8* %9, i8* %11, i32 0)
%13 = tail call i32 (...) @issd_compute_destroy()
br label %14
14: ; preds = %6, %4
ret i32 0
}