#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 */
char *my_strconcat(char const *, char const *);
int /*<<< orphan*/ printf(char *, ...);
int main(int argc, char **argv) {
  if (3 > argc) {
    printf("Nombre de parametres insuffisants\n");
    return 1;
  }
  const char *value = argv[1];
  const char *value_2 = argv[2];
  printf("%s ", my_strconcat(value, value_2));
}


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)
mov    $0x3,%eax
cmp    -0x8(%rbp),%eax
jle    115e <main+0x3e>
lea    0xeb5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    1194 <main+0x74>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x20(%rbp)
mov    -0x18(%rbp),%rdi
mov    -0x20(%rbp),%rsi
call   1040 <my_strconcat@plt>
mov    %rax,%rsi
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jg     1149 <main+0x19>
lea    0xec7(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%ebx
jmp    1169 <main+0x39>
mov    0x8(%rsi),%rdi
mov    0x10(%rsi),%rsi
call   1050 <my_strconcat@plt>
lea    0xea3(%rip),%rdi
xor    %ebx,%ebx
mov    %rax,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [35 x i8] c"Nombre de parametres insuffisants\0A\00"
@.str.1 = [4 x i8] c"%s \00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
%7 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp sgt i32 3, %8
br i1 %9, label %10, label %12
10: ; preds = %2
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %23
12: ; preds = %2
%13 = load i8**, i8*** %5
%14 = getelementptr inbounds i8*, i8** %13, i64 1
%15 = load i8*, i8** %14
store i8* %15, i8** %6
%16 = load i8**, i8*** %5
%17 = getelementptr inbounds i8*, i8** %16, i64 2
%18 = load i8*, i8** %17
store i8* %18, i8** %7
%19 = load i8*, i8** %6
%20 = load i8*, i8** %7
%21 = call i8* @my_strconcat(i8* %19, i8* %20)
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %21)
br label %23
23: ; preds = %12, %10
%24 = load i32, i32* %3
ret i32 %24
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%s \00"
@str = [34 x i8] c"Nombre de parametres insuffisants\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 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str, i64 0, i64 0))
br label %13
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = getelementptr inbounds i8*, i8** %1, i64 2
%10 = load i8*, i8** %9
%11 = tail call i8* @my_strconcat(i8* %8, i8* %10)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %11)
br label %13
13: ; preds = %6, %4
%14 = phi i32 [ 1, %4 ], [ 0, %6 ]
ret i32 %14
}