void fa235(int n) {
  {
    int b[n];
    {
      int c[n];
      0;
    }
    {
      int d[n];
      0;
    };
    int e[n];
    0;
  };
  {
    int f[n];
    {
      int g[n];
      0;
    };
    {
      int h[n];
      0;
    };
    ;
    int i[n];
    goto a;
    0;
  };
a:;
  int j[n];
  0;
}


x86 assembly (clang, -O0):
<fa235>:
push   %rbp
mov    %rsp,%rbp
sub    $0x90,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x10(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x18(%rbp)
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x20(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x28(%rbp)
mov    -0x20(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x30(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x38(%rbp)
mov    -0x30(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x40(%rbp)
mov    -0x10(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x48(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x50(%rbp)
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x58(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x60(%rbp)
mov    -0x58(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x68(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x70(%rbp)
mov    -0x68(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,%rsp
mov    %rax,-0x78(%rbp)
movl   $0x2,-0x7c(%rbp)
mov    -0x48(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x88(%rbp)
mov    %rax,-0x90(%rbp)
mov    -0x88(%rbp),%rax
mov    %rax,%rsp
mov    %rbp,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<fa235>:
ret

LLVM IR (-O0):
define void @fa235(i32 %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i64
%5 = alloca i8*
%6 = alloca i64
%7 = alloca i8*
%8 = alloca i64
%9 = alloca i64
%10 = alloca i8*
%11 = alloca i64
%12 = alloca i8*
%13 = alloca i64
%14 = alloca i8*
%15 = alloca i64
%16 = alloca i64
%17 = alloca i32
%18 = alloca i8*
%19 = alloca i64
store i32 %0, i32* %2
%20 = load i32, i32* %2
%21 = zext i32 %20 to i64
%22 = call i8* @llvm.stacksave()
store i8* %22, i8** %3
%23 = alloca i32, i64 %21
store i64 %21, i64* %4
%24 = load i32, i32* %2
%25 = zext i32 %24 to i64
%26 = call i8* @llvm.stacksave()
store i8* %26, i8** %5
%27 = alloca i32, i64 %25
store i64 %25, i64* %6
%28 = load i8*, i8** %5
%29 = load i32, i32* %2
%30 = zext i32 %29 to i64
%31 = call i8* @llvm.stacksave()
store i8* %31, i8** %7
%32 = alloca i32, i64 %30
store i64 %30, i64* %8
%33 = load i8*, i8** %7
%34 = load i32, i32* %2
%35 = zext i32 %34 to i64
%36 = alloca i32, i64 %35
store i64 %35, i64* %9
%37 = load i8*, i8** %3
%38 = load i32, i32* %2
%39 = zext i32 %38 to i64
%40 = call i8* @llvm.stacksave()
store i8* %40, i8** %10
%41 = alloca i32, i64 %39
store i64 %39, i64* %11
%42 = load i32, i32* %2
%43 = zext i32 %42 to i64
%44 = call i8* @llvm.stacksave()
store i8* %44, i8** %12
%45 = alloca i32, i64 %43
store i64 %43, i64* %13
%46 = load i8*, i8** %12
%47 = load i32, i32* %2
%48 = zext i32 %47 to i64
%49 = call i8* @llvm.stacksave()
store i8* %49, i8** %14
%50 = alloca i32, i64 %48
store i64 %48, i64* %15
%51 = load i8*, i8** %14
%52 = load i32, i32* %2
%53 = zext i32 %52 to i64
%54 = alloca i32, i64 %53
store i64 %53, i64* %16
store i32 2, i32* %17
%55 = load i8*, i8** %10
%56 = load i32, i32* %17
switch i32 %56, label %63 [
i32 2, label %57
]
57: ; preds = %1
%58 = load i32, i32* %2
%59 = zext i32 %58 to i64
%60 = call i8* @llvm.stacksave()
store i8* %60, i8** %18
%61 = alloca i32, i64 %59
store i64 %59, i64* %19
%62 = load i8*, i8** %18
ret void
63: ; preds = %1
unreachable
}

LLVM IR (-O2):
define void @fa235(i32 %0) {
ret void
}