#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*/ abstract_declarator();
int /*<<< orphan*/ declaration_specifiers();
int /*<<< orphan*/ declarator();
int yyselect();
parameter_declaration() {
  switch (yyselect()) {
  case 32: {
    declaration_specifiers();
    switch (yyselect()) {
    case 128: {
      declarator();
    } break;
    case 129: {
      abstract_declarator();
    } break;
    default:;
    }
  } break;
  }
}


x86 assembly (clang, -O0):
<parameter_declaration>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
xor    %eax,%eax
call   1030 <yyselect@plt>
sub    $0x20,%eax
jne    11b9 <parameter_declaration+0x79>
jmp    115d <parameter_declaration+0x1d>
xor    %eax,%eax
mov    %al,-0x9(%rbp)
call   1050 <declaration_specifiers@plt>
mov    -0x9(%rbp),%al
call   1030 <yyselect@plt>
mov    %eax,%ecx
mov    %ecx,-0x8(%rbp)
sub    $0x80,%eax
je     1197 <parameter_declaration+0x57>
jmp    1184 <parameter_declaration+0x44>
mov    -0x8(%rbp),%eax
sub    $0x81,%eax
je     11a3 <parameter_declaration+0x63>
jmp    11af <parameter_declaration+0x6f>
mov    $0x0,%al
call   1040 <declarator@plt>
jmp    11b4 <parameter_declaration+0x74>
mov    $0x0,%al
call   1060 <abstract_declarator@plt>
jmp    11b4 <parameter_declaration+0x74>
jmp    11b4 <parameter_declaration+0x74>
jmp    11b9 <parameter_declaration+0x79>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<parameter_declaration>:
push   %rax
xor    %eax,%eax
call   1030 <yyselect@plt>
cmp    $0x20,%eax
jne    1179 <parameter_declaration+0x39>
xor    %eax,%eax
call   1050 <declaration_specifiers@plt>
xor    %eax,%eax
call   1030 <yyselect@plt>
cmp    $0x81,%eax
je     1172 <parameter_declaration+0x32>
cmp    $0x80,%eax
jne    1179 <parameter_declaration+0x39>
xor    %eax,%eax
call   1040 <declarator@plt>
pop    %rcx
ret
xor    %eax,%eax
call   1060 <abstract_declarator@plt>
pop    %rcx
ret

LLVM IR (-O0):
define i32 @parameter_declaration() {
%1 = alloca i32
%2 = call i32 (...) @yyselect()
switch i32 %2, label %12 [
i32 32, label %3
]
3: ; preds = %0
%4 = call i32 (...) @declaration_specifiers()
%5 = call i32 (...) @yyselect()
switch i32 %5, label %10 [
i32 128, label %6
i32 129, label %8
]
6: ; preds = %3
%7 = call i32 (...) @declarator()
br label %11
8: ; preds = %3
%9 = call i32 (...) @abstract_declarator()
br label %11
10: ; preds = %3
br label %11
11: ; preds = %10, %8, %6
br label %12
12: ; preds = %0, %11
%13 = load i32, i32* %1
ret i32 %13
}

LLVM IR (-O2):
define i32 @parameter_declaration() {
%1 = tail call i32 (...) @yyselect()
%2 = icmp eq i32 %1, 32
br i1 %2, label %3, label %10
3: ; preds = %0
%4 = tail call i32 (...) @declaration_specifiers()
%5 = tail call i32 (...) @yyselect()
switch i32 %5, label %10 [
i32 128, label %6
i32 129, label %8
]
6: ; preds = %3
%7 = tail call i32 (...) @declarator()
br label %10
8: ; preds = %3
%9 = tail call i32 (...) @abstract_declarator()
br label %10
10: ; preds = %6, %8, %3, %0
ret i32 undef
}