#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 utsname {
  char *nodename;
  char *machine;
  char *sysname;
  char *release;
  char *version;
};

/* Variables and functions */
int /*<<< orphan*/ printf(char *, char *, char *, char *, char *, char *);
scalar_t__ uname(struct utsname *);
int uname_main() {
  struct utsname name;
  if (uname(&name) == 0)
    printf("<p>%s, %s<br>\n%s, %s, %s</p>\n", name.nodename, name.machine,
           name.sysname, name.release, name.version);
  return (0);
}


x86 assembly (clang, -O0):
<uname_main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
lea    -0x28(%rbp),%rdi
call   1040 <uname@plt>
cmp    $0x0,%rax
jne    115b <uname_main+0x3b>
mov    -0x28(%rbp),%rsi
mov    -0x20(%rbp),%rdx
mov    -0x18(%rbp),%rcx
mov    -0x10(%rbp),%r8
mov    -0x8(%rbp),%r9
lea    0xeaa(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<uname_main>:
sub    $0x28,%rsp
mov    %rsp,%rdi
call   1040 <uname@plt>
test   %rax,%rax
jne    1155 <uname_main+0x35>
mov    (%rsp),%rsi
mov    0x8(%rsp),%rdx
mov    0x10(%rsp),%rcx
mov    0x18(%rsp),%r8
mov    0x20(%rsp),%r9
lea    0xeb0(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x28,%rsp
ret

LLVM IR (-O0):
%struct.utsname = type { i8*, i8*, i8*, i8*, i8* }
@.str = [30 x i8] c"<p>%s, %s<br>\0A%s, %s, %s</p>\0A\00"
define i32 @uname_main() {
%1 = alloca %struct.utsname
%2 = call i64 @uname(%struct.utsname* %1)
%3 = icmp eq i64 %2, 0
br i1 %3, label %4, label %16
4: ; preds = %0
%5 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i32 0, i32 0
%6 = load i8*, i8** %5
%7 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i32 0, i32 1
%8 = load i8*, i8** %7
%9 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i32 0, i32 2
%10 = load i8*, i8** %9
%11 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i32 0, i32 3
%12 = load i8*, i8** %11
%13 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i32 0, i32 4
%14 = load i8*, i8** %13
%15 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8* %6, i8* %8, i8* %10, i8* %12, i8* %14)
br label %16
16: ; preds = %4, %0
ret i32 0
}

LLVM IR (-O2):
%struct.utsname = type { i8*, i8*, i8*, i8*, i8* }
@.str = [30 x i8] c"<p>%s, %s<br>\0A%s, %s, %s</p>\0A\00"
define i32 @uname_main() {
%1 = alloca %struct.utsname
%2 = bitcast %struct.utsname* %1 to i8*
%3 = call i64 @uname(%struct.utsname* %1)
%4 = icmp eq i64 %3, 0
br i1 %4, label %5, label %17
5: ; preds = %0
%6 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i64 0, i32 0
%7 = load i8*, i8** %6
%8 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i64 0, i32 1
%9 = load i8*, i8** %8
%10 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i64 0, i32 2
%11 = load i8*, i8** %10
%12 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i64 0, i32 3
%13 = load i8*, i8** %12
%14 = getelementptr inbounds %struct.utsname, %struct.utsname* %1, i64 0, i32 4
%15 = load i8*, i8** %14
%16 = tail call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8* %7, i8* %9, i8* %11, i8* %13, i8* %15)
br label %17
17: ; preds = %5, %0
ret i32 0
}