#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*/ exit(int);
int /*<<< orphan*/ printf(char *, char *);
scalar_t__ unlink(char *);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("Usage : %s <files to be removed>\n", argv[0]);
    exit(1);
  }
  int i;
  for (i = 1; i < argc; i++) {
    if (unlink(argv[i]) != 0) {
      printf("File \"%s\" cannot be removed\n", argv[i]);
    }
  }
}


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   $0x2,-0x8(%rbp)
jge    116d <main+0x3d>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xea2(%rip),%rdi
call   1040 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11c6 <main+0x96>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1030 <unlink@plt>
cmp    $0x0,%rax
je     11b3 <main+0x83>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
lea    0xe74(%rip),%rdi
call   1040 <printf@plt>
jmp    11b8 <main+0x88>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1174 <main+0x44>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r12
cmp    $0x2,%edi
jl     1193 <main+0x63>
mov    %edi,%r15d
mov    $0x1,%ebx
lea    0xed3(%rip),%r14
jmp    1169 <main+0x39>
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
add    $0x1,%rbx
cmp    %rbx,%r15
je     1185 <main+0x55>
mov    (%r12,%rbx,8),%rdi
call   1030 <unlink@plt>
test   %rax,%rax
je     1160 <main+0x30>
mov    (%r12,%rbx,8),%rsi
mov    %r14,%rdi
call   1040 <printf@plt>
jmp    1160 <main+0x30>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret
mov    (%r12),%rsi
lea    0xe62(%rip),%rdi
call   1040 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [34 x i8] c"Usage : %s <files to be removed>\0A\00"
@.str.1 = [29 x i8] c"File \22%s\22 cannot be removed\0A\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 slt i32 %7, 2
br i1 %8, label %9, label %15
9: ; preds = %2
%10 = load i8**, i8*** %5
%11 = getelementptr inbounds i8*, i8** %10, i64 0
%12 = load i8*, i8** %11
%13 = call i32 @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), i8* %12)
%14 = call i32 @exit(i32 1)
unreachable
15: ; preds = %2
store i32 1, i32* %6
br label %16
16: ; preds = %36, %15
%17 = load i32, i32* %6
%18 = load i32, i32* %4
%19 = icmp slt i32 %17, %18
br i1 %19, label %20, label %39
20: ; preds = %16
%21 = load i8**, i8*** %5
%22 = load i32, i32* %6
%23 = sext i32 %22 to i64
%24 = getelementptr inbounds i8*, i8** %21, i64 %23
%25 = load i8*, i8** %24
%26 = call i64 @unlink(i8* %25)
%27 = icmp ne i64 %26, 0
br i1 %27, label %28, label %35
28: ; preds = %20
%29 = load i8**, i8*** %5
%30 = load i32, i32* %6
%31 = sext i32 %30 to i64
%32 = getelementptr inbounds i8*, i8** %29, i64 %31
%33 = load i8*, i8** %32
%34 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.1, i64 0, i64 0), i8* %33)
br label %35
35: ; preds = %28, %20
br label %36
36: ; preds = %35
%37 = load i32, i32* %6
%38 = add nsw i32 %37, 1
store i32 %38, i32* %6
br label %16
39: ; preds = %16
%40 = load i32, i32* %3
ret i32 %40
}

LLVM IR (-O2):
@.str = [34 x i8] c"Usage : %s <files to be removed>\0A\00"
@.str.1 = [29 x i8] c"File \22%s\22 cannot be removed\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %6, label %4
4: ; preds = %2
%5 = zext i32 %0 to i64
br label %10
6: ; preds = %2
%7 = load i8*, i8** %1
%8 = tail call i32 @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), i8* %7)
%9 = tail call i32 @exit(i32 1)
unreachable
10: ; preds = %4, %19
%11 = phi i64 [ 1, %4 ], [ %20, %19 ]
%12 = getelementptr inbounds i8*, i8** %1, i64 %11
%13 = load i8*, i8** %12
%14 = tail call i64 @unlink(i8* %13)
%15 = icmp eq i64 %14, 0
br i1 %15, label %19, label %16
16: ; preds = %10
%17 = load i8*, i8** %12
%18 = tail call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.1, i64 0, i64 0), i8* %17)
br label %19
19: ; preds = %10, %16
%20 = add nuw nsw i64 %11, 1
%21 = icmp eq i64 %20, %5
br i1 %21, label %22, label %10
22: ; preds = %19
ret i32 0
}