#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 *, ...);
int strlen(char *);
char *strstr(char *, char *);
int main(int argc, char **argv) {
  if (argc != 3) {
    printf("2 args needed\n");
    return 1;
  }
  printf("strstr(%s,%s) : %s\n", argv[1], argv[2], strstr(argv[1], argv[2]));
  ;
  printf("strlen(%s) : %d\n", argv[1], strlen(argv[1]));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x3,-0x8(%rbp)
je     116a <main+0x3a>
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11e4 <main+0xb4>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x28(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x20(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rsi
call   1050 <strstr@plt>
mov    -0x28(%rbp),%rsi
mov    -0x20(%rbp),%rdx
mov    %rax,%rcx
lea    0xe66(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1030 <strlen@plt>
mov    -0x18(%rbp),%rsi
mov    %eax,%edx
lea    0xe4d(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
cmp    $0x3,%edi
jne    119d <main+0x5d>
mov    %rsi,%rbx
mov    0x8(%rsi),%rbp
mov    0x10(%rsi),%r15
mov    %rbp,%rdi
mov    %r15,%rsi
call   1060 <strstr@plt>
lea    0xe97(%rip),%rdi
xor    %r14d,%r14d
mov    %rbp,%rsi
mov    %r15,%rdx
mov    %rax,%rcx
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x8(%rbx),%rbx
mov    %rbx,%rdi
call   1040 <strlen@plt>
lea    0xe85(%rip),%rdi
mov    %rbx,%rsi
mov    %eax,%edx
xor    %eax,%eax
call   1050 <printf@plt>
jmp    11af <main+0x6f>
lea    0xe81(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%r14d
mov    %r14d,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [15 x i8] c"2 args needed\0A\00"
@.str.1 = [20 x i8] c"strstr(%s,%s) : %s\0A\00"
@.str.2 = [17 x i8] c"strlen(%s) : %d\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 ne i32 %6, 3
br i1 %7, label %8, label %10
8: ; preds = %2
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %33
10: ; preds = %2
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 1
%13 = load i8*, i8** %12
%14 = load i8**, i8*** %5
%15 = getelementptr inbounds i8*, i8** %14, i64 2
%16 = load i8*, i8** %15
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = load i8**, i8*** %5
%21 = getelementptr inbounds i8*, i8** %20, i64 2
%22 = load i8*, i8** %21
%23 = call i8* @strstr(i8* %19, i8* %22)
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8* %13, i8* %16, i8* %23)
%25 = load i8**, i8*** %5
%26 = getelementptr inbounds i8*, i8** %25, i64 1
%27 = load i8*, i8** %26
%28 = load i8**, i8*** %5
%29 = getelementptr inbounds i8*, i8** %28, i64 1
%30 = load i8*, i8** %29
%31 = call i32 @strlen(i8* %30)
%32 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i8* %27, i32 %31)
store i32 0, i32* %3
br label %33
33: ; preds = %10, %8
%34 = load i32, i32* %3
ret i32 %34
}

LLVM IR (-O2):
@.str.1 = [20 x i8] c"strstr(%s,%s) : %s\0A\00"
@.str.2 = [17 x i8] c"strlen(%s) : %d\0A\00"
@str = [14 x i8] c"2 args needed\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 3
br i1 %3, label %6, label %4
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @str, i64 0, i64 0))
br label %16
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* @strstr(i8* dereferenceable(1) %8, i8* dereferenceable(1) %10)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8* %8, i8* %10, i8* %11)
%13 = load i8*, i8** %7
%14 = tail call i32 @strlen(i8* %13)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i8* %13, i32 %14)
br label %16
16: ; preds = %6, %4
%17 = phi i32 [ 1, %4 ], [ 0, %6 ]
ret i32 %17
}