#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*/ STDIN_FILENO;
int /*<<< orphan*/ cat(char *);
int /*<<< orphan*/ docat(char *, int /*<<< orphan*/);
int main(int argc, char *argv[]) {
  if (argc == 1) {
    docat("stdin", STDIN_FILENO);
  } else {
    int i;
    for (i = 1; i < argc; i++) {
      cat(argv[i]);
    }
  }
  return 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)
jne    115a <main+0x3a>
mov    0x2e99(%rip),%rax
mov    (%rax),%esi
lea    0xeb0(%rip),%rdi
call   1030 <docat@plt>
jmp    1191 <main+0x71>
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    118c <main+0x6c>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1040 <cat@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1161 <main+0x41>
jmp    1191 <main+0x71>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
cmp    $0x1,%edi
jne    1141 <main+0x21>
mov    0x2eaf(%rip),%rax
mov    (%rax),%esi
lea    0xec6(%rip),%rdi
call   1030 <docat@plt>
jmp    1162 <main+0x42>
jle    1162 <main+0x42>
mov    %rsi,%r14
mov    %edi,%r15d
mov    $0x1,%ebx
xchg   %ax,%ax
mov    (%r14,%rbx,8),%rdi
call   1040 <cat@plt>
add    $0x1,%rbx
cmp    %rbx,%r15
jne    1150 <main+0x30>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [6 x i8] c"stdin\00"
@STDIN_FILENO = global i32 0
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 eq i32 %7, 1
br i1 %8, label %9, label %12
9: ; preds = %2
%10 = load i32, i32* @STDIN_FILENO
%11 = call i32 @docat(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %10)
br label %28
12: ; preds = %2
store i32 1, i32* %6
br label %13
13: ; preds = %24, %12
%14 = load i32, i32* %6
%15 = load i32, i32* %4
%16 = icmp slt i32 %14, %15
br i1 %16, label %17, label %27
17: ; preds = %13
%18 = load i8**, i8*** %5
%19 = load i32, i32* %6
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8*, i8** %18, i64 %20
%22 = load i8*, i8** %21
%23 = call i32 @cat(i8* %22)
br label %24
24: ; preds = %17
%25 = load i32, i32* %6
%26 = add nsw i32 %25, 1
store i32 %26, i32* %6
br label %13
27: ; preds = %13
br label %28
28: ; preds = %27, %9
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"stdin\00"
@STDIN_FILENO = global i32 0
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 1
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = icmp sgt i32 %0, 1
br i1 %5, label %6, label %18
6: ; preds = %4
%7 = zext i32 %0 to i64
br label %11
8: ; preds = %2
%9 = load i32, i32* @STDIN_FILENO
%10 = tail call i32 @docat(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %9)
br label %18
11: ; preds = %6, %11
%12 = phi i64 [ 1, %6 ], [ %16, %11 ]
%13 = getelementptr inbounds i8*, i8** %1, i64 %12
%14 = load i8*, i8** %13
%15 = tail call i32 @cat(i8* %14)
%16 = add nuw nsw i64 %12, 1
%17 = icmp eq i64 %16, %7
br i1 %17, label %18, label %11
18: ; preds = %11, %4, %8
ret i32 0
}