#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 */
struct addrinfo {
  struct addrinfo *ai_canonname;
  struct addrinfo *ai_addr;
  struct addrinfo *ai_next;
};

/* Variables and functions */
int /*<<< orphan*/ free(struct addrinfo *);
void freeaddrinfo(struct addrinfo *ai) {
  struct addrinfo *next;
  while (ai) {
    next = ai->ai_next;
    if (ai->ai_addr)
      free(ai->ai_addr);
    if (ai->ai_canonname)
      free(ai->ai_canonname);
    free(ai);
    ai = next;
  }
}


x86 assembly (clang, -O0):
<freeaddrinfo>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
cmpq   $0x0,-0x8(%rbp)
je     117f <freeaddrinfo+0x6f>
mov    -0x8(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x10(%rbp)
mov    -0x8(%rbp),%rax
cmpq   $0x0,0x8(%rax)
je     114f <freeaddrinfo+0x3f>
mov    -0x8(%rbp),%rax
mov    0x8(%rax),%rdi
call   1030 <free@plt>
mov    -0x8(%rbp),%rax
cmpq   $0x0,(%rax)
je     1169 <freeaddrinfo+0x59>
mov    -0x8(%rbp),%rax
mov    (%rax),%rdi
call   1030 <free@plt>
mov    -0x8(%rbp),%rdi
call   1030 <free@plt>
mov    -0x10(%rbp),%rax
mov    %rax,-0x8(%rbp)
jmp    111c <freeaddrinfo+0xc>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<freeaddrinfo>:
push   %r14
push   %rbx
push   %rax
test   %rdi,%rdi
je     1151 <freeaddrinfo+0x41>
mov    %rdi,%rbx
jmp    1130 <freeaddrinfo+0x20>
xchg   %ax,%ax
mov    %rbx,%rdi
call   1030 <free@plt>
mov    %r14,%rbx
test   %r14,%r14
je     1151 <freeaddrinfo+0x41>
mov    0x8(%rbx),%rdi
mov    0x10(%rbx),%r14
test   %rdi,%rdi
je     1142 <freeaddrinfo+0x32>
call   1030 <free@plt>
mov    (%rbx),%rdi
test   %rdi,%rdi
je     1120 <freeaddrinfo+0x10>
call   1030 <free@plt>
jmp    1120 <freeaddrinfo+0x10>
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
%struct.addrinfo = type { %struct.addrinfo*, %struct.addrinfo*, %struct.addrinfo* }
define void @freeaddrinfo(%struct.addrinfo* %0) {
%2 = alloca %struct.addrinfo*
%3 = alloca %struct.addrinfo*
store %struct.addrinfo* %0, %struct.addrinfo** %2
br label %4
4: ; preds = %30, %1
%5 = load %struct.addrinfo*, %struct.addrinfo** %2
%6 = icmp ne %struct.addrinfo* %5, null
br i1 %6, label %7, label %34
7: ; preds = %4
%8 = load %struct.addrinfo*, %struct.addrinfo** %2
%9 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %8, i32 0, i32 2
%10 = load %struct.addrinfo*, %struct.addrinfo** %9
store %struct.addrinfo* %10, %struct.addrinfo** %3
%11 = load %struct.addrinfo*, %struct.addrinfo** %2
%12 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %11, i32 0, i32 1
%13 = load %struct.addrinfo*, %struct.addrinfo** %12
%14 = icmp ne %struct.addrinfo* %13, null
br i1 %14, label %15, label %20
15: ; preds = %7
%16 = load %struct.addrinfo*, %struct.addrinfo** %2
%17 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %16, i32 0, i32 1
%18 = load %struct.addrinfo*, %struct.addrinfo** %17
%19 = call i32 @free(%struct.addrinfo* %18)
br label %20
20: ; preds = %15, %7
%21 = load %struct.addrinfo*, %struct.addrinfo** %2
%22 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %21, i32 0, i32 0
%23 = load %struct.addrinfo*, %struct.addrinfo** %22
%24 = icmp ne %struct.addrinfo* %23, null
br i1 %24, label %25, label %30
25: ; preds = %20
%26 = load %struct.addrinfo*, %struct.addrinfo** %2
%27 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %26, i32 0, i32 0
%28 = load %struct.addrinfo*, %struct.addrinfo** %27
%29 = call i32 @free(%struct.addrinfo* %28)
br label %30
30: ; preds = %25, %20
%31 = load %struct.addrinfo*, %struct.addrinfo** %2
%32 = call i32 @free(%struct.addrinfo* %31)
%33 = load %struct.addrinfo*, %struct.addrinfo** %3
store %struct.addrinfo* %33, %struct.addrinfo** %2
br label %4
34: ; preds = %4
ret void
}

LLVM IR (-O2):
%struct.addrinfo = type { %struct.addrinfo*, %struct.addrinfo*, %struct.addrinfo* }
define void @freeaddrinfo(%struct.addrinfo* %0) {
%2 = icmp eq %struct.addrinfo* %0, null
br i1 %2, label %21, label %3
3: ; preds = %1, %18
%4 = phi %struct.addrinfo* [ %6, %18 ], [ %0, %1 ]
%5 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %4, i64 0, i32 2
%6 = load %struct.addrinfo*, %struct.addrinfo** %5
%7 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %4, i64 0, i32 1
%8 = load %struct.addrinfo*, %struct.addrinfo** %7
%9 = icmp eq %struct.addrinfo* %8, null
br i1 %9, label %12, label %10
10: ; preds = %3
%11 = tail call i32 @free(%struct.addrinfo* %8)
br label %12
12: ; preds = %10, %3
%13 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %4, i64 0, i32 0
%14 = load %struct.addrinfo*, %struct.addrinfo** %13
%15 = icmp eq %struct.addrinfo* %14, null
br i1 %15, label %18, label %16
16: ; preds = %12
%17 = tail call i32 @free(%struct.addrinfo* %14)
br label %18
18: ; preds = %16, %12
%19 = tail call i32 @free(%struct.addrinfo* %4)
%20 = icmp eq %struct.addrinfo* %6, null
br i1 %20, label %21, label %3
21: ; preds = %18, %1
ret void
}