#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*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ printf(char *, int, ...);
int /*<<< orphan*/ stderr;
int main(int argc, char *argv[]) {
  if (argc != 2) {
    fprintf(stderr, "ERROR: You need one argument.\n");
    return 1;
  }
  int i = 0;
  for (i = 0; argv[1][i] != '\0'; i++) {
    char letter = argv[1][i];
    switch (letter) {
    case 'a':
    case 'A':
      printf("%d: 'A'\n", i);
      break;
    case 'e':
    case 'E':
      printf("%d: 'E'\n", i);
      break;
    case 'i':
    case 'I':
      printf("%d: 'I'\n", i);
      break;
    case 'o':
    case 'O':
      printf("%d: 'O'\n", i);
      break;
    case 'u':
    case 'U':
      printf("%d: 'U'\n", i);
      break;
    case 'y':
    case 'Y':
      if (i > 2) {
        printf("%d: 'Y'\n", i);
      }
      break;
    default:
      printf("%d: %c is not a vowel\n", i, letter);
    }
  }
  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   $0x2,-0x8(%rbp)
je     1161 <main+0x41>
mov    0x2e99(%rip),%rax
mov    (%rax),%edi
lea    0xf94(%rip),%rsi
call   1040 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
jmp    1281 <main+0x161>
movl   $0x0,-0x14(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
movslq -0x14(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
cmp    $0x0,%eax
je     127a <main+0x15a>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,1),%al
mov    %al,-0x15(%rbp)
movsbl -0x15(%rbp),%eax
add    $0xffffffbf,%eax
mov    %eax,%ecx
mov    %rcx,-0x20(%rbp)
sub    $0x38,%eax
ja     1252 <main+0x132>
mov    -0x20(%rbp),%rax
lea    0xe45(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
mov    -0x14(%rbp),%esi
lea    0xf35(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
mov    -0x14(%rbp),%esi
lea    0xf28(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
mov    -0x14(%rbp),%esi
lea    0xf1b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
mov    -0x14(%rbp),%esi
lea    0xf0e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
mov    -0x14(%rbp),%esi
lea    0xf01(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
cmpl   $0x2,-0x14(%rbp)
jle    124d <main+0x12d>
mov    -0x14(%rbp),%esi
lea    0xeea(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1267 <main+0x147>
mov    -0x14(%rbp),%esi
movsbl -0x15(%rbp),%edx
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126c <main+0x14c>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    116f <main+0x4f>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
cmp    $0x2,%edi
jne    11dc <main+0xbc>
mov    %rsi,%rbx
mov    0x8(%rsi),%rax
mov    (%rax),%al
test   %al,%al
je     11f8 <main+0xd8>
lea    0xeb4(%rip),%r12
lea    0xf52(%rip),%r13
lea    0xf54(%rip),%rbp
lea    0xf56(%rip),%r14
xor    %r15d,%r15d
jmp    118c <main+0x6c>
lea    0xf26(%rip),%rdi
nopl   (%rax)
mov    %r15d,%esi
xor    %eax,%eax
call   1030 <printf@plt>
mov    0x8(%rbx),%rax
movzbl 0x1(%rax,%r15,1),%eax
add    $0x1,%r15
test   %al,%al
je     11f8 <main+0xd8>
movsbl %al,%edx
lea    -0x41(%rdx),%eax
ror    %eax
cmp    $0x1c,%eax
ja     11c9 <main+0xa9>
movslq (%r12,%rax,4),%rax
add    %r12,%rax
jmp    *%rax
lea    0xef3(%rip),%rdi
jmp    1170 <main+0x50>
mov    %r13,%rdi
jmp    1170 <main+0x50>
mov    %rbp,%rdi
jmp    1170 <main+0x50>
mov    %r14,%rdi
jmp    1170 <main+0x50>
cmp    $0x3,%r15
jb     117a <main+0x5a>
lea    0xef9(%rip),%rdi
jmp    1170 <main+0x50>
lea    0xef9(%rip),%rdi
mov    %r15d,%esi
xor    %eax,%eax
call   1030 <printf@plt>
jmp    117a <main+0x5a>
mov    0x2dfd(%rip),%rax
mov    (%rax),%edi
lea    0xe88(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%eax
jmp    11fa <main+0xda>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@stderr = global i32 0
@.str = [31 x i8] c"ERROR: You need one argument.\0A\00"
@.str.1 = [9 x i8] c"%d: 'A'\0A\00"
@.str.2 = [9 x i8] c"%d: 'E'\0A\00"
@.str.3 = [9 x i8] c"%d: 'I'\0A\00"
@.str.4 = [9 x i8] c"%d: 'O'\0A\00"
@.str.5 = [9 x i8] c"%d: 'U'\0A\00"
@.str.6 = [9 x i8] c"%d: 'Y'\0A\00"
@.str.7 = [23 x i8] c"%d: %c is not a vowel\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i8
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp ne i32 %8, 2
br i1 %9, label %10, label %13
10: ; preds = %2
%11 = load i32, i32* @stderr
%12 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %66
13: ; preds = %2
store i32 0, i32* %6
store i32 0, i32* %6
br label %14
14: ; preds = %62, %13
%15 = load i8**, i8*** %5
%16 = getelementptr inbounds i8*, i8** %15, i64 1
%17 = load i8*, i8** %16
%18 = load i32, i32* %6
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i8, i8* %17, i64 %19
%21 = load i8, i8* %20
%22 = sext i8 %21 to i32
%23 = icmp ne i32 %22, 0
br i1 %23, label %24, label %65
24: ; preds = %14
%25 = load i8**, i8*** %5
%26 = getelementptr inbounds i8*, i8** %25, i64 1
%27 = load i8*, i8** %26
%28 = load i32, i32* %6
%29 = sext i32 %28 to i64
%30 = getelementptr inbounds i8, i8* %27, i64 %29
%31 = load i8, i8* %30
store i8 %31, i8* %7
%32 = load i8, i8* %7
%33 = sext i8 %32 to i32
switch i32 %33, label %56 [
i32 97, label %34
i32 65, label %34
i32 101, label %37
i32 69, label %37
i32 105, label %40
i32 73, label %40
i32 111, label %43
i32 79, label %43
i32 117, label %46
i32 85, label %46
i32 121, label %49
i32 89, label %49
]
34: ; preds = %24, %24
%35 = load i32, i32* %6
%36 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 %35)
br label %61
37: ; preds = %24, %24
%38 = load i32, i32* %6
%39 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i32 %38)
br label %61
40: ; preds = %24, %24
%41 = load i32, i32* %6
%42 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %41)
br label %61
43: ; preds = %24, %24
%44 = load i32, i32* %6
%45 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %44)
br label %61
46: ; preds = %24, %24
%47 = load i32, i32* %6
%48 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0), i32 %47)
br label %61
49: ; preds = %24, %24
%50 = load i32, i32* %6
%51 = icmp sgt i32 %50, 2
br i1 %51, label %52, label %55
52: ; preds = %49
%53 = load i32, i32* %6
%54 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.6, i64 0, i64 0), i32 %53)
br label %55
55: ; preds = %52, %49
br label %61
56: ; preds = %24
%57 = load i32, i32* %6
%58 = load i8, i8* %7
%59 = sext i8 %58 to i32
%60 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.7, i64 0, i64 0), i32 %57, i32 %59)
br label %61
61: ; preds = %56, %55, %46, %43, %40, %37, %34
br label %62
62: ; preds = %61
%63 = load i32, i32* %6
%64 = add nsw i32 %63, 1
store i32 %64, i32* %6
br label %14
65: ; preds = %14
store i32 0, i32* %3
br label %66
66: ; preds = %65, %10
%67 = load i32, i32* %3
ret i32 %67
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [31 x i8] c"ERROR: You need one argument.\0A\00"
@.str.1 = [9 x i8] c"%d: 'A'\0A\00"
@.str.2 = [9 x i8] c"%d: 'E'\0A\00"
@.str.3 = [9 x i8] c"%d: 'I'\0A\00"
@.str.4 = [9 x i8] c"%d: 'O'\0A\00"
@.str.5 = [9 x i8] c"%d: 'U'\0A\00"
@.str.6 = [9 x i8] c"%d: 'Y'\0A\00"
@.str.7 = [23 x i8] c"%d: %c is not a vowel\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %4, label %9
4: ; preds = %2
%5 = getelementptr inbounds i8*, i8** %1, i64 1
%6 = load i8*, i8** %5
%7 = load i8, i8* %6
%8 = icmp eq i8 %7, 0
br i1 %8, label %47, label %12
9: ; preds = %2
%10 = load i32, i32* @stderr
%11 = tail call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
br label %47
12: ; preds = %4, %41
%13 = phi i64 [ %42, %41 ], [ 0, %4 ]
%14 = phi i8 [ %45, %41 ], [ %7, %4 ]
%15 = sext i8 %14 to i32
%16 = add nsw i32 %15, -65
%17 = tail call i32 @llvm.fshl.i32(i32 %16, i32 %16, i32 31)
switch i32 %17, label %38 [
i32 16, label %18
i32 0, label %18
i32 18, label %21
i32 2, label %21
i32 20, label %24
i32 4, label %24
i32 23, label %27
i32 7, label %27
i32 26, label %30
i32 10, label %30
i32 28, label %33
i32 12, label %33
]
18: ; preds = %12, %12
%19 = trunc i64 %13 to i32
%20 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 %19)
br label %41
21: ; preds = %12, %12
%22 = trunc i64 %13 to i32
%23 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i32 %22)
br label %41
24: ; preds = %12, %12
%25 = trunc i64 %13 to i32
%26 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %25)
br label %41
27: ; preds = %12, %12
%28 = trunc i64 %13 to i32
%29 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %28)
br label %41
30: ; preds = %12, %12
%31 = trunc i64 %13 to i32
%32 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0), i32 %31)
br label %41
33: ; preds = %12, %12
%34 = icmp ugt i64 %13, 2
br i1 %34, label %35, label %41
35: ; preds = %33
%36 = trunc i64 %13 to i32
%37 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.6, i64 0, i64 0), i32 %36)
br label %41
38: ; preds = %12
%39 = trunc i64 %13 to i32
%40 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.7, i64 0, i64 0), i32 %39, i32 %15)
br label %41
41: ; preds = %33, %35, %38, %30, %27, %24, %21, %18
%42 = add nuw i64 %13, 1
%43 = load i8*, i8** %5
%44 = getelementptr inbounds i8, i8* %43, i64 %42
%45 = load i8, i8* %44
%46 = icmp eq i8 %45, 0
br i1 %46, label %47, label %12
47: ; preds = %41, %4, %9
%48 = phi i32 [ 1, %9 ], [ 0, %4 ], [ 0, %41 ]
ret i32 %48
}