#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 *, char *);
int /*<<< orphan*/ serial_terminal(char *, int, int /*<<< orphan*/,
                                   int /*<<< orphan*/, int);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("usage: %s <serial device> [115200|9600...]\n", argv[0]);
    return -1;
  }
  printf("-->%s<--\n", argv[1]);
  serial_terminal(argv[1], 115200, 0, 0, 1);
  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)
jge    115f <main+0x3f>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xeb2(%rip),%rdi
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    1196 <main+0x76>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rsi
lea    0xebe(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
mov    $0x1c200,%esi
xor    %ecx,%ecx
mov    $0x1,%r8d
mov    %ecx,%edx
call   1040 <serial_terminal@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %rsi,%rbx
cmp    $0x1,%edi
jg     113f <main+0x1f>
mov    (%rbx),%rsi
lea    0xecd(%rip),%rdi
call   1030 <printf@plt>
mov    $0xffffffff,%ebx
jmp    1169 <main+0x49>
mov    0x8(%rbx),%rsi
lea    0xee2(%rip),%rdi
call   1030 <printf@plt>
mov    0x8(%rbx),%rdi
xor    %ebx,%ebx
mov    $0x1c200,%esi
xor    %edx,%edx
xor    %ecx,%ecx
mov    $0x1,%r8d
call   1040 <serial_terminal@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [44 x i8] c"usage: %s <serial device> [115200|9600...]\0A\00"
@.str.1 = [10 x i8] c"-->%s<--\0A\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 slt i32 %6, 2
br i1 %7, label %8, label %13
8: ; preds = %2
%9 = load i8**, i8*** %5
%10 = getelementptr inbounds i8*, i8** %9, i64 0
%11 = load i8*, i8** %10
%12 = call i32 @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i8* %11)
store i32 -1, i32* %3
br label %22
13: ; preds = %2
%14 = load i8**, i8*** %5
%15 = getelementptr inbounds i8*, i8** %14, i64 1
%16 = load i8*, i8** %15
%17 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i8* %16)
%18 = load i8**, i8*** %5
%19 = getelementptr inbounds i8*, i8** %18, i64 1
%20 = load i8*, i8** %19
%21 = call i32 @serial_terminal(i8* %20, i32 115200, i32 0, i32 0, i32 1)
store i32 0, i32* %3
br label %22
22: ; preds = %13, %8
%23 = load i32, i32* %3
ret i32 %23
}

LLVM IR (-O2):
@.str = [44 x i8] c"usage: %s <serial device> [115200|9600...]\0A\00"
@.str.1 = [10 x i8] c"-->%s<--\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %7
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i8* %5)
br label %13
7: ; preds = %2
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i8* %9)
%11 = load i8*, i8** %8
%12 = tail call i32 @serial_terminal(i8* %11, i32 115200, i32 0, i32 0, i32 1)
br label %13
13: ; preds = %7, %4
%14 = phi i32 [ -1, %4 ], [ 0, %7 ]
ret i32 %14
}