#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*/ close(int);
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int open(char *, int /*<<< orphan*/);
int /*<<< orphan*/ stderr;
int /*<<< orphan*/ wc(int, char *);
int main(int argc, char *argv[]) {
  int fd, i;
  if (argc <= 1) {
    wc(0, "");
    exit(0);
  }
  for (i = 1; i < argc; i++) {
    if ((fd = open(argv[i], 0)) < 0) {
      fprintf(stderr, "wc: cannot open %s\n", argv[i]);
      exit(1);
    }
    wc(fd, argv[i]);
    close(fd);
  }
  exit(0);
}


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   $0x1,-0x8(%rbp)
jg     1185 <main+0x35>
xor    %edi,%edi
lea    0xe9a(%rip),%rsi
call   1040 <wc@plt>
xor    %edi,%edi
call   1070 <exit@plt>
movl   $0x1,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    120c <main+0xbc>
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
xor    %esi,%esi
call   1060 <open@plt>
mov    %eax,-0x14(%rbp)
cmp    $0x0,%eax
jge    11e2 <main+0x92>
mov    0x2e22(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,8),%rdx
lea    0xe2d(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
mov    -0x14(%rbp),%edi
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
call   1040 <wc@plt>
mov    -0x14(%rbp),%edi
call   1030 <close@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    118c <main+0x3c>
xor    %edi,%edi
call   1070 <exit@plt>

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
cmp    $0x2,%edi
jge    1171 <main+0x21>
lea    0xeb0(%rip),%rsi
xor    %edi,%edi
call   1040 <wc@plt>
xor    %edi,%edi
call   1070 <exit@plt>
mov    %rsi,%r14
mov    %edi,%r15d
mov    $0x1,%ebx
nopl   0x0(%rax)
mov    (%r14,%rbx,8),%rdi
xor    %esi,%esi
call   1060 <open@plt>
test   %eax,%eax
js     11b3 <main+0x63>
mov    %eax,%ebp
mov    (%r14,%rbx,8),%rsi
mov    %eax,%edi
call   1040 <wc@plt>
mov    %ebp,%edi
call   1030 <close@plt>
add    $0x1,%rbx
cmp    %rbx,%r15
jne    1180 <main+0x30>
xor    %edi,%edi
call   1070 <exit@plt>
mov    0x2e26(%rip),%rax
mov    (%rax),%edi
mov    (%r14,%rbx,8),%rdx
lea    0xe39(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
@.str = [1 x i8] zeroinitializer
@stderr = global i32 0
@.str.1 = [20 x i8] c"wc: cannot open %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp sle i32 %8, 1
br i1 %9, label %10, label %13
10: ; preds = %2
%11 = call i32 @wc(i32 0, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%12 = call i32 @exit(i32 0)
unreachable
13: ; preds = %2
store i32 1, i32* %7
br label %14
14: ; preds = %45, %13
%15 = load i32, i32* %7
%16 = load i32, i32* %4
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %48
18: ; preds = %14
%19 = load i8**, i8*** %5
%20 = load i32, i32* %7
%21 = sext i32 %20 to i64
%22 = getelementptr inbounds i8*, i8** %19, i64 %21
%23 = load i8*, i8** %22
%24 = call i32 @open(i8* %23, i32 0)
store i32 %24, i32* %6
%25 = icmp slt i32 %24, 0
br i1 %25, label %26, label %35
26: ; preds = %18
%27 = load i32, i32* @stderr
%28 = load i8**, i8*** %5
%29 = load i32, i32* %7
%30 = sext i32 %29 to i64
%31 = getelementptr inbounds i8*, i8** %28, i64 %30
%32 = load i8*, i8** %31
%33 = call i32 @fprintf(i32 %27, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8* %32)
%34 = call i32 @exit(i32 1)
unreachable
35: ; preds = %18
%36 = load i32, i32* %6
%37 = load i8**, i8*** %5
%38 = load i32, i32* %7
%39 = sext i32 %38 to i64
%40 = getelementptr inbounds i8*, i8** %37, i64 %39
%41 = load i8*, i8** %40
%42 = call i32 @wc(i32 %36, i8* %41)
%43 = load i32, i32* %6
%44 = call i32 @close(i32 %43)
br label %45
45: ; preds = %35
%46 = load i32, i32* %7
%47 = add nsw i32 %46, 1
store i32 %47, i32* %7
br label %14
48: ; preds = %14
%49 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str = [1 x i8] zeroinitializer
@stderr = global i32 0
@.str.1 = [20 x i8] c"wc: cannot open %s\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 %9
6: ; preds = %2
%7 = tail call i32 @wc(i32 0, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%8 = tail call i32 @exit(i32 0)
unreachable
9: ; preds = %4, %20
%10 = phi i64 [ 1, %4 ], [ %24, %20 ]
%11 = getelementptr inbounds i8*, i8** %1, i64 %10
%12 = load i8*, i8** %11
%13 = tail call i32 @open(i8* %12, i32 0)
%14 = icmp slt i32 %13, 0
br i1 %14, label %15, label %20
15: ; preds = %9
%16 = load i32, i32* @stderr
%17 = load i8*, i8** %11
%18 = tail call i32 @fprintf(i32 %16, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8* %17)
%19 = tail call i32 @exit(i32 1)
unreachable
20: ; preds = %9
%21 = load i8*, i8** %11
%22 = tail call i32 @wc(i32 %13, i8* %21)
%23 = tail call i32 @close(i32 %13)
%24 = add nuw nsw i64 %10, 1
%25 = icmp eq i64 %24, %5
br i1 %25, label %26, label %9
26: ; preds = %20
%27 = tail call i32 @exit(i32 0)
unreachable
}