#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 */
typedef scalar_t__ pid_t;

/* Variables and functions */
int EXIT_SUCCESS;
int STDIN_FILENO;
int STDOUT_FILENO;
int /*<<< orphan*/ close(int);
int /*<<< orphan*/ dup2(int, int);
int execlp(char *, char *, int /*<<< orphan*/ *);
int /*<<< orphan*/ exit(int);
scalar_t__ fork();
int /*<<< orphan*/ perror(char *);
int pipe(int *);
int /*<<< orphan*/ printf(char *);
int read(int, char *, int);
int strlen(char *);
int /*<<< orphan*/ waitpid(scalar_t__, int /*<<< orphan*/ *,
                           int /*<<< orphan*/);
int /*<<< orphan*/ write(int, char *, int);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("Es wird mindestens ein Argument erwartet.\n");
    return EXIT_SUCCESS;
  }
  int n, A[2], B[2], err;
  pid_t pid;
  char line[4096];
  err = pipe(A);
  if (err < 0) {
    perror("pipe error");
    exit(1);
  }
  err = pipe(B);
  if (err < 0) {
    perror("pipe error");
    exit(1);
  }
  pid = fork();
  if (pid < 0) {
    perror("fork error");
    exit(1);
  } else if (pid > 0) {
    close(A[0]);
    close(B[1]);
    char space[1];
    space[0] = ' ';
    int i;
    for (i = 1; i < argc; i++) {
      char *argument = argv[i];
      write(A[1], argument, strlen(argument));
      write(A[1], space, 1);
    }
    close(A[1]);
    while ((n = read(B[0], line, 4096)) > 0) {
      write(STDOUT_FILENO, line, n);
    }
    close(B[0]);
    printf("\n");
    waitpid(pid, NULL, 0);
  } else {
    close(A[1]);
    close(B[0]);
    dup2(A[0], STDIN_FILENO);
    dup2(B[1], STDOUT_FILENO);
    int err = execlp("./filter", "./filter", NULL);
    if (err == -1) {
      perror("exec filter error");
    }
  }
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x1060,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    1200 <main+0x40>
lea    0xe16(%rip),%rdi
call   1060 <printf@plt>
mov    0x2de2(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    141b <main+0x25b>
lea    -0x1c(%rbp),%rdi
call   1080 <pipe@plt>
mov    %eax,-0x28(%rbp)
cmpl   $0x0,-0x28(%rbp)
jge    122c <main+0x6c>
lea    0xe0e(%rip),%rdi
call   10b0 <perror@plt>
mov    $0x1,%edi
call   10c0 <exit@plt>
lea    -0x24(%rbp),%rdi
call   1080 <pipe@plt>
mov    %eax,-0x28(%rbp)
cmpl   $0x0,-0x28(%rbp)
jge    1258 <main+0x98>
lea    0xde2(%rip),%rdi
call   10b0 <perror@plt>
mov    $0x1,%edi
call   10c0 <exit@plt>
mov    $0x0,%al
call   10e0 <fork@plt>
mov    %rax,-0x30(%rbp)
cmpq   $0x0,-0x30(%rbp)
jge    1284 <main+0xc4>
lea    0xdc1(%rip),%rdi
call   10b0 <perror@plt>
mov    $0x1,%edi
call   10c0 <exit@plt>
cmpq   $0x0,-0x30(%rbp)
jle    13a1 <main+0x1e1>
mov    -0x1c(%rbp),%edi
call   1070 <close@plt>
mov    -0x20(%rbp),%edi
call   1070 <close@plt>
movb   $0x20,-0x1031(%rbp)
movl   $0x1,-0x1038(%rbp)
mov    -0x1038(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    1334 <main+0x174>
mov    -0x10(%rbp),%rax
movslq -0x1038(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
mov    %rax,-0x1040(%rbp)
mov    -0x18(%rbp),%eax
mov    %eax,-0x1054(%rbp)
mov    -0x1040(%rbp),%rax
mov    %rax,-0x1050(%rbp)
mov    -0x1040(%rbp),%rdi
call   1040 <strlen@plt>
mov    -0x1054(%rbp),%edi
mov    -0x1050(%rbp),%rsi
mov    %eax,%edx
call   1030 <write@plt>
mov    -0x18(%rbp),%edi
lea    -0x1031(%rbp),%rsi
mov    $0x1,%edx
call   1030 <write@plt>
mov    -0x1038(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1038(%rbp)
jmp    12b0 <main+0xf0>
mov    -0x18(%rbp),%edi
call   1070 <close@plt>
mov    -0x24(%rbp),%edi
lea    -0x1030(%rbp),%rsi
mov    $0x1000,%edx
call   1090 <read@plt>
mov    %eax,-0x14(%rbp)
cmp    $0x0,%eax
jle    1379 <main+0x1b9>
mov    0x2c8d(%rip),%rax
mov    (%rax),%edi
lea    -0x1030(%rbp),%rsi
mov    -0x14(%rbp),%edx
call   1030 <write@plt>
jmp    133c <main+0x17c>
mov    -0x24(%rbp),%edi
call   1070 <close@plt>
lea    0xca1(%rip),%rdi
call   1060 <printf@plt>
mov    -0x30(%rbp),%rdi
xor    %eax,%eax
mov    %eax,%esi
xor    %edx,%edx
call   10a0 <waitpid@plt>
jmp    140a <main+0x24a>
mov    -0x18(%rbp),%edi
call   1070 <close@plt>
mov    -0x24(%rbp),%edi
call   1070 <close@plt>
mov    -0x1c(%rbp),%edi
mov    0x2c15(%rip),%rax
mov    (%rax),%esi
call   1050 <dup2@plt>
mov    -0x20(%rbp),%edi
mov    0x2c24(%rip),%rax
mov    (%rax),%esi
call   1050 <dup2@plt>
lea    0xc67(%rip),%rsi
xor    %eax,%eax
mov    %eax,%edx
mov    %rsi,%rdi
call   10d0 <execlp@plt>
mov    %eax,-0x1044(%rbp)
cmpl   $0xffffffff,-0x1044(%rbp)
jne    1405 <main+0x245>
lea    0xc4a(%rip),%rdi
call   10b0 <perror@plt>
jmp    140a <main+0x24a>
jmp    140f <main+0x24f>
mov    0x2bc2(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x1060,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x1028,%rsp
cmp    $0x1,%edi
jg     11f7 <main+0x27>
lea    0xe44(%rip),%rdi
call   1040 <puts@plt>
jmp    1361 <main+0x191>
mov    %rsi,%r12
mov    %edi,%ebp
lea    0x10(%rsp),%rdi
call   1090 <pipe@plt>
test   %eax,%eax
js     138a <main+0x1ba>
lea    0x8(%rsp),%rdi
call   1090 <pipe@plt>
test   %eax,%eax
js     138a <main+0x1ba>
xor    %eax,%eax
call   10f0 <fork@plt>
test   %rax,%rax
js     1393 <main+0x1c3>
je     1315 <main+0x145>
mov    %rax,0x18(%rsp)
mov    0x10(%rsp),%edi
call   1080 <close@plt>
mov    0xc(%rsp),%edi
call   1080 <close@plt>
movb   $0x20,0x7(%rsp)
mov    %ebp,%r13d
mov    $0x1,%r14d
lea    0x7(%rsp),%r15
mov    (%r12,%r14,8),%rbp
mov    0x14(%rsp),%ebx
mov    %rbp,%rdi
call   1060 <strlen@plt>
mov    %ebx,%edi
mov    %rbp,%rsi
mov    %eax,%edx
call   1050 <write@plt>
mov    0x14(%rsp),%edi
mov    %r15,%rsi
mov    $0x1,%edx
call   1050 <write@plt>
add    $0x1,%r14
cmp    %r14,%r13
jne    1260 <main+0x90>
mov    0x14(%rsp),%edi
call   1080 <close@plt>
mov    0x8(%rsp),%edi
lea    0x20(%rsp),%rsi
mov    $0x1000,%edx
call   10a0 <read@plt>
test   %eax,%eax
jle    12f2 <main+0x122>
mov    0x2d33(%rip),%rbp
lea    0x20(%rsp),%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    0x0(%rbp),%edi
mov    %rbx,%rsi
mov    %eax,%edx
call   1050 <write@plt>
mov    0x8(%rsp),%edi
mov    %rbx,%rsi
mov    $0x1000,%edx
call   10a0 <read@plt>
test   %eax,%eax
jg     12d0 <main+0x100>
mov    0x8(%rsp),%edi
call   1080 <close@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    0x18(%rsp),%rdi
xor    %esi,%esi
xor    %edx,%edx
call   10b0 <waitpid@plt>
jmp    1361 <main+0x191>
mov    0x14(%rsp),%edi
call   1080 <close@plt>
mov    0x8(%rsp),%edi
call   1080 <close@plt>
mov    0x10(%rsp),%edi
mov    0x2c9e(%rip),%rax
mov    (%rax),%esi
call   1070 <dup2@plt>
mov    0xc(%rsp),%edi
mov    0x2cac(%rip),%rax
mov    (%rax),%esi
call   1070 <dup2@plt>
lea    0xcc4(%rip),%rdi
mov    %rdi,%rsi
xor    %edx,%edx
call   10e0 <execlp@plt>
cmp    $0xffffffff,%eax
je     137c <main+0x1ac>
mov    0x2c70(%rip),%rax
mov    (%rax),%eax
add    $0x1028,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret
lea    0xc9c(%rip),%rdi
call   10c0 <perror@plt>
jmp    1361 <main+0x191>
lea    0xc6f(%rip),%rdi
jmp    139a <main+0x1ca>
lea    0xc71(%rip),%rdi
call   10c0 <perror@plt>
mov    $0x1,%edi
call   10d0 <exit@plt>

LLVM IR (-O0):
@.str = [43 x i8] c"Es wird mindestens ein Argument erwartet.\0A\00"
@EXIT_SUCCESS = global i32 0
@.str.1 = [11 x i8] c"pipe error\00"
@.str.2 = [11 x i8] c"fork error\00"
@STDOUT_FILENO = global i32 0
@.str.3 = [2 x i8] c"\0A\00"
@STDIN_FILENO = global i32 0
@.str.4 = [9 x i8] c"./filter\00"
@.str.5 = [18 x i8] c"exec filter error\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca [2 x i32]
%8 = alloca [2 x i32]
%9 = alloca i32
%10 = alloca i64
%11 = alloca [4096 x i8]
%12 = alloca [1 x i8]
%13 = alloca i32
%14 = alloca i8*
%15 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%16 = load i32, i32* %4
%17 = icmp slt i32 %16, 2
br i1 %17, label %18, label %21
18: ; preds = %2
%19 = call i32 @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str, i64 0, i64 0))
%20 = load i32, i32* @EXIT_SUCCESS
store i32 %20, i32* %3
br label %124
21: ; preds = %2
%22 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 0
%23 = call i32 @pipe(i32* %22)
store i32 %23, i32* %9
%24 = load i32, i32* %9
%25 = icmp slt i32 %24, 0
br i1 %25, label %26, label %29
26: ; preds = %21
%27 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%28 = call i32 @exit(i32 1)
unreachable
29: ; preds = %21
%30 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 0
%31 = call i32 @pipe(i32* %30)
store i32 %31, i32* %9
%32 = load i32, i32* %9
%33 = icmp slt i32 %32, 0
br i1 %33, label %34, label %37
34: ; preds = %29
%35 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%36 = call i32 @exit(i32 1)
unreachable
37: ; preds = %29
%38 = call i64 (...) @fork()
store i64 %38, i64* %10
%39 = load i64, i64* %10
%40 = icmp slt i64 %39, 0
br i1 %40, label %41, label %44
41: ; preds = %37
%42 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0))
%43 = call i32 @exit(i32 1)
unreachable
44: ; preds = %37
%45 = load i64, i64* %10
%46 = icmp sgt i64 %45, 0
br i1 %46, label %47, label %100
47: ; preds = %44
%48 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 0
%49 = load i32, i32* %48
%50 = call i32 @close(i32 %49)
%51 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 1
%52 = load i32, i32* %51
%53 = call i32 @close(i32 %52)
%54 = getelementptr inbounds [1 x i8], [1 x i8]* %12, i64 0, i64 0
store i8 32, i8* %54
store i32 1, i32* %13
br label %55
55: ; preds = %75, %47
%56 = load i32, i32* %13
%57 = load i32, i32* %4
%58 = icmp slt i32 %56, %57
br i1 %58, label %59, label %78
59: ; preds = %55
%60 = load i8**, i8*** %5
%61 = load i32, i32* %13
%62 = sext i32 %61 to i64
%63 = getelementptr inbounds i8*, i8** %60, i64 %62
%64 = load i8*, i8** %63
store i8* %64, i8** %14
%65 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 1
%66 = load i32, i32* %65
%67 = load i8*, i8** %14
%68 = load i8*, i8** %14
%69 = call i32 @strlen(i8* %68)
%70 = call i32 @write(i32 %66, i8* %67, i32 %69)
%71 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 1
%72 = load i32, i32* %71
%73 = getelementptr inbounds [1 x i8], [1 x i8]* %12, i64 0, i64 0
%74 = call i32 @write(i32 %72, i8* %73, i32 1)
br label %75
75: ; preds = %59
%76 = load i32, i32* %13
%77 = add nsw i32 %76, 1
store i32 %77, i32* %13
br label %55
78: ; preds = %55
%79 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 1
%80 = load i32, i32* %79
%81 = call i32 @close(i32 %80)
br label %82
82: ; preds = %88, %78
%83 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 0
%84 = load i32, i32* %83
%85 = getelementptr inbounds [4096 x i8], [4096 x i8]* %11, i64 0, i64 0
%86 = call i32 @read(i32 %84, i8* %85, i32 4096)
store i32 %86, i32* %6
%87 = icmp sgt i32 %86, 0
br i1 %87, label %88, label %93
88: ; preds = %82
%89 = load i32, i32* @STDOUT_FILENO
%90 = getelementptr inbounds [4096 x i8], [4096 x i8]* %11, i64 0, i64 0
%91 = load i32, i32* %6
%92 = call i32 @write(i32 %89, i8* %90, i32 %91)
br label %82
93: ; preds = %82
%94 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 0
%95 = load i32, i32* %94
%96 = call i32 @close(i32 %95)
%97 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%98 = load i64, i64* %10
%99 = call i32 @waitpid(i64 %98, i32* null, i32 0)
br label %121
100: ; preds = %44
%101 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 1
%102 = load i32, i32* %101
%103 = call i32 @close(i32 %102)
%104 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 0
%105 = load i32, i32* %104
%106 = call i32 @close(i32 %105)
%107 = getelementptr inbounds [2 x i32], [2 x i32]* %7, i64 0, i64 0
%108 = load i32, i32* %107
%109 = load i32, i32* @STDIN_FILENO
%110 = call i32 @dup2(i32 %108, i32 %109)
%111 = getelementptr inbounds [2 x i32], [2 x i32]* %8, i64 0, i64 1
%112 = load i32, i32* %111
%113 = load i32, i32* @STDOUT_FILENO
%114 = call i32 @dup2(i32 %112, i32 %113)
%115 = call i32 @execlp(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32* null)
store i32 %115, i32* %15
%116 = load i32, i32* %15
%117 = icmp eq i32 %116, -1
br i1 %117, label %118, label %120
118: ; preds = %100
%119 = call i32 @perror(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.5, i64 0, i64 0))
br label %120
120: ; preds = %118, %100
br label %121
121: ; preds = %120, %93
br label %122
122: ; preds = %121
%123 = load i32, i32* @EXIT_SUCCESS
store i32 %123, i32* %3
br label %124
124: ; preds = %122, %18
%125 = load i32, i32* %3
ret i32 %125
}

LLVM IR (-O2):
@EXIT_SUCCESS = global i32 0
@.str.1 = [11 x i8] c"pipe error\00"
@.str.2 = [11 x i8] c"fork error\00"
@STDOUT_FILENO = global i32 0
@STDIN_FILENO = global i32 0
@.str.4 = [9 x i8] c"./filter\00"
@.str.5 = [18 x i8] c"exec filter error\00"
@str = [42 x i8] c"Es wird mindestens ein Argument erwartet.\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = alloca [2 x i32]
%4 = alloca [2 x i32]
%5 = alloca [4096 x i8]
%6 = alloca [1 x i8]
%7 = icmp slt i32 %0, 2
br i1 %7, label %8, label %11
8: ; preds = %2
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @str, i64 0, i64 0))
%10 = load i32, i32* @EXIT_SUCCESS
br label %94
11: ; preds = %2
%12 = bitcast [2 x i32]* %3 to i8*
%13 = bitcast [2 x i32]* %4 to i8*
%14 = getelementptr inbounds [4096 x i8], [4096 x i8]* %5, i64 0, i64 0
%15 = getelementptr inbounds [2 x i32], [2 x i32]* %3, i64 0, i64 0
%16 = call i32 @pipe(i32* %15)
%17 = icmp slt i32 %16, 0
br i1 %17, label %18, label %21
18: ; preds = %11
%19 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%20 = call i32 @exit(i32 1)
unreachable
21: ; preds = %11
%22 = getelementptr inbounds [2 x i32], [2 x i32]* %4, i64 0, i64 0
%23 = call i32 @pipe(i32* %22)
%24 = icmp slt i32 %23, 0
br i1 %24, label %25, label %28
25: ; preds = %21
%26 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%27 = call i32 @exit(i32 1)
unreachable
28: ; preds = %21
%29 = call i64 (...) @fork()
%30 = icmp slt i64 %29, 0
br i1 %30, label %31, label %34
31: ; preds = %28
%32 = call i32 @perror(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0))
%33 = call i32 @exit(i32 1)
unreachable
34: ; preds = %28
%35 = icmp eq i64 %29, 0
br i1 %35, label %75, label %36
36: ; preds = %34
%37 = load i32, i32* %15
%38 = call i32 @close(i32 %37)
%39 = getelementptr inbounds [2 x i32], [2 x i32]* %4, i64 0, i64 1
%40 = load i32, i32* %39
%41 = call i32 @close(i32 %40)
%42 = getelementptr inbounds [1 x i8], [1 x i8]* %6, i64 0, i64 0
store i8 32, i8* %42
%43 = getelementptr inbounds [2 x i32], [2 x i32]* %3, i64 0, i64 1
%44 = zext i32 %0 to i64
br label %45
45: ; preds = %36, %45
%46 = phi i64 [ 1, %36 ], [ %54, %45 ]
%47 = getelementptr inbounds i8*, i8** %1, i64 %46
%48 = load i8*, i8** %47
%49 = load i32, i32* %43
%50 = call i32 @strlen(i8* %48)
%51 = call i32 @write(i32 %49, i8* %48, i32 %50)
%52 = load i32, i32* %43
%53 = call i32 @write(i32 %52, i8* %42, i32 1)
%54 = add nuw nsw i64 %46, 1
%55 = icmp eq i64 %54, %44
br i1 %55, label %56, label %45
56: ; preds = %45
%57 = getelementptr inbounds [2 x i32], [2 x i32]* %3, i64 0, i64 1
%58 = load i32, i32* %57
%59 = call i32 @close(i32 %58)
%60 = load i32, i32* %22
%61 = call i32 @read(i32 %60, i8* %14, i32 4096)
%62 = icmp sgt i32 %61, 0
br i1 %62, label %63, label %70
63: ; preds = %56, %63
%64 = phi i32 [ %68, %63 ], [ %61, %56 ]
%65 = load i32, i32* @STDOUT_FILENO
%66 = call i32 @write(i32 %65, i8* %14, i32 %64)
%67 = load i32, i32* %22
%68 = call i32 @read(i32 %67, i8* %14, i32 4096)
%69 = icmp sgt i32 %68, 0
br i1 %69, label %63, label %70
70: ; preds = %63, %56
%71 = load i32, i32* %22
%72 = call i32 @close(i32 %71)
%73 = call i32 @putchar(i32 10)
%74 = call i32 @waitpid(i64 %29, i32* null, i32 0)
br label %92
75: ; preds = %34
%76 = getelementptr inbounds [2 x i32], [2 x i32]* %3, i64 0, i64 1
%77 = load i32, i32* %76
%78 = call i32 @close(i32 %77)
%79 = load i32, i32* %22
%80 = call i32 @close(i32 %79)
%81 = load i32, i32* %15
%82 = load i32, i32* @STDIN_FILENO
%83 = call i32 @dup2(i32 %81, i32 %82)
%84 = getelementptr inbounds [2 x i32], [2 x i32]* %4, i64 0, i64 1
%85 = load i32, i32* %84
%86 = load i32, i32* @STDOUT_FILENO
%87 = call i32 @dup2(i32 %85, i32 %86)
%88 = call i32 @execlp(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32* null)
%89 = icmp eq i32 %88, -1
br i1 %89, label %90, label %92
90: ; preds = %75
%91 = call i32 @perror(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.5, i64 0, i64 0))
br label %92
92: ; preds = %75, %90, %70
%93 = load i32, i32* @EXIT_SUCCESS
br label %94
94: ; preds = %92, %8
%95 = phi i32 [ %10, %8 ], [ %93, %92 ]
ret i32 %95
}