#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];
    letter &= ~(1 << 5);
    switch (letter) {
    case 'A':
      printf("%d: 'A'\n", i);
      break;
    case 'E':
      printf("%d: 'E'\n", i);
      break;
    case 'I':
      printf("%d: 'I'\n", i);
      break;
    case 'O':
      printf("%d: 'O'\n", i);
      break;
    case 'U':
      printf("%d: 'U'\n", i);
      break;
    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    0xf14(%rip),%rsi
call   1040 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
jmp    1289 <main+0x169>
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     1282 <main+0x162>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,1),%al
mov    %al,-0x15(%rbp)
mov    -0x15(%rbp),%al
and    $0xdf,%al
mov    %al,-0x15(%rbp)
movsbl -0x15(%rbp),%eax
add    $0xffffffbf,%eax
mov    %eax,%ecx
mov    %rcx,-0x20(%rbp)
sub    $0x18,%eax
ja     125a <main+0x13a>
mov    -0x20(%rbp),%rax
lea    0xe3d(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
mov    -0x14(%rbp),%esi
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
mov    -0x14(%rbp),%esi
lea    0xea0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
mov    -0x14(%rbp),%esi
lea    0xe93(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
mov    -0x14(%rbp),%esi
lea    0xe86(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
mov    -0x14(%rbp),%esi
lea    0xe79(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
cmpl   $0x2,-0x14(%rbp)
jle    1255 <main+0x135>
mov    -0x14(%rbp),%esi
lea    0xe62(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    126f <main+0x14f>
mov    -0x14(%rbp),%esi
movsbl -0x15(%rbp),%edx
lea    0xe51(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1274 <main+0x154>
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    11de <main+0xbe>
mov    %rsi,%rbx
mov    0x8(%rsi),%rax
mov    (%rax),%al
test   %al,%al
je     11fa <main+0xda>
lea    0xeb4(%rip),%r12
lea    0xf12(%rip),%r13
lea    0xf14(%rip),%rbp
lea    0xf16(%rip),%r14
xor    %r15d,%r15d
jmp    118c <main+0x6c>
lea    0xee6(%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     11fa <main+0xda>
and    $0xdf,%al
movsbl %al,%edx
lea    -0x41(%rdx),%eax
ror    %eax
cmp    $0xc,%eax
ja     11ad <main+0x8d>
movslq (%r12,%rax,4),%rax
add    %r12,%rax
jmp    *%rax
lea    0xeb1(%rip),%rdi
jmp    1170 <main+0x50>
lea    0xed5(%rip),%rdi
mov    %r15d,%esi
xor    %eax,%eax
call   1030 <printf@plt>
jmp    117a <main+0x5a>
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    0xea4(%rip),%rdi
jmp    1170 <main+0x50>
mov    0x2dfb(%rip),%rax
mov    (%rax),%edi
lea    0xe46(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%eax
jmp    11fc <main+0xdc>
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 %70
13: ; preds = %2
store i32 0, i32* %6
store i32 0, i32* %6
br label %14
14: ; preds = %66, %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 %69
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
%34 = and i32 %33, -33
%35 = trunc i32 %34 to i8
store i8 %35, i8* %7
%36 = load i8, i8* %7
%37 = sext i8 %36 to i32
switch i32 %37, label %60 [
i32 65, label %38
i32 69, label %41
i32 73, label %44
i32 79, label %47
i32 85, label %50
i32 89, label %53
]
38: ; preds = %24
%39 = load i32, i32* %6
%40 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 %39)
br label %65
41: ; preds = %24
%42 = load i32, i32* %6
%43 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i32 %42)
br label %65
44: ; preds = %24
%45 = load i32, i32* %6
%46 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %45)
br label %65
47: ; preds = %24
%48 = load i32, i32* %6
%49 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %48)
br label %65
50: ; preds = %24
%51 = load i32, i32* %6
%52 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0), i32 %51)
br label %65
53: ; preds = %24
%54 = load i32, i32* %6
%55 = icmp sgt i32 %54, 2
br i1 %55, label %56, label %59
56: ; preds = %53
%57 = load i32, i32* %6
%58 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.6, i64 0, i64 0), i32 %57)
br label %59
59: ; preds = %56, %53
br label %65
60: ; preds = %24
%61 = load i32, i32* %6
%62 = load i8, i8* %7
%63 = sext i8 %62 to i32
%64 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.7, i64 0, i64 0), i32 %61, i32 %63)
br label %65
65: ; preds = %60, %59, %50, %47, %44, %41, %38
br label %66
66: ; preds = %65
%67 = load i32, i32* %6
%68 = add nsw i32 %67, 1
store i32 %68, i32* %6
br label %14
69: ; preds = %14
store i32 0, i32* %3
br label %70
70: ; preds = %69, %10
%71 = load i32, i32* %3
ret i32 %71
}

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 %48, 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 %48
12: ; preds = %4, %42
%13 = phi i64 [ %43, %42 ], [ 0, %4 ]
%14 = phi i8 [ %46, %42 ], [ %7, %4 ]
%15 = and i8 %14, -33
%16 = sext i8 %15 to i32
%17 = add nsw i32 %16, -65
%18 = tail call i32 @llvm.fshl.i32(i32 %17, i32 %17, i32 31)
switch i32 %18, label %39 [
i32 0, label %19
i32 2, label %22
i32 4, label %25
i32 7, label %28
i32 10, label %31
i32 12, label %34
]
19: ; preds = %12
%20 = trunc i64 %13 to i32
%21 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 %20)
br label %42
22: ; preds = %12
%23 = trunc i64 %13 to i32
%24 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i32 %23)
br label %42
25: ; preds = %12
%26 = trunc i64 %13 to i32
%27 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %26)
br label %42
28: ; preds = %12
%29 = trunc i64 %13 to i32
%30 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %29)
br label %42
31: ; preds = %12
%32 = trunc i64 %13 to i32
%33 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0), i32 %32)
br label %42
34: ; preds = %12
%35 = icmp ugt i64 %13, 2
br i1 %35, label %36, label %42
36: ; preds = %34
%37 = trunc i64 %13 to i32
%38 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.6, i64 0, i64 0), i32 %37)
br label %42
39: ; preds = %12
%40 = trunc i64 %13 to i32
%41 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.7, i64 0, i64 0), i32 %40, i32 %16)
br label %42
42: ; preds = %34, %36, %39, %31, %28, %25, %22, %19
%43 = add nuw i64 %13, 1
%44 = load i8*, i8** %5
%45 = getelementptr inbounds i8, i8* %44, i64 %43
%46 = load i8, i8* %45
%47 = icmp eq i8 %46, 0
br i1 %47, label %48, label %12
48: ; preds = %42, %4, %9
%49 = phi i32 [ 1, %9 ], [ 0, %4 ], [ 0, %42 ]
ret i32 %49
}