#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 */
typedef struct TYPE_4__ TYPE_2__;
typedef struct TYPE_3__ TYPE_1__;

/* Type definitions */
struct TYPE_4__ {
  int /*<<< orphan*/ tv_usec;
  int /*<<< orphan*/ tv_sec;
};
struct TYPE_3__ {
  int /*<<< orphan*/ tv_usec;
  int /*<<< orphan*/ tv_sec;
};
struct rusage {
  TYPE_2__ ru_stime;
  TYPE_1__ ru_utime;
};

/* Variables and functions */
int /*<<< orphan*/ RUSAGE_SELF;
int /*<<< orphan*/ getrusage(int /*<<< orphan*/, struct rusage *);
int /*<<< orphan*/ printf(char *, int /*<<< orphan*/, int /*<<< orphan*/,
                          int /*<<< orphan*/, int /*<<< orphan*/);
void print_cpu_time() {
  struct rusage usage;
  getrusage(RUSAGE_SELF, &usage);
  printf("CPU time: %ld.%06ld sec user, %ld.%06ld sec system\n",
         usage.ru_utime.tv_sec, usage.ru_utime.tv_usec, usage.ru_stime.tv_sec,
         usage.ru_stime.tv_usec);
}


x86 assembly (clang, -O0):
<print_cpu_time>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    0x2eb1(%rip),%rax
mov    (%rax),%edi
lea    -0x10(%rbp),%rsi
call   1040 <getrusage@plt>
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
mov    -0xc(%rbp),%ecx
mov    -0x10(%rbp),%r8d
lea    0xeb2(%rip),%rdi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_cpu_time>:
sub    $0x18,%rsp
mov    0x2eb5(%rip),%rax
mov    (%rax),%edi
lea    0x8(%rsp),%rsi
call   1040 <getrusage@plt>
mov    0x14(%rsp),%esi
mov    0x10(%rsp),%edx
mov    0x8(%rsp),%r8d
mov    0xc(%rsp),%ecx
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
add    $0x18,%rsp
ret

LLVM IR (-O0):
%struct.rusage = type { %struct.TYPE_4__, %struct.TYPE_3__ }
%struct.TYPE_4__ = type { i32, i32 }
%struct.TYPE_3__ = type { i32, i32 }
@RUSAGE_SELF = global i32 0
@.str = [52 x i8] c"CPU time: %ld.%06ld sec user, %ld.%06ld sec system\0A\00"
define void @print_cpu_time() {
%1 = alloca %struct.rusage
%2 = load i32, i32* @RUSAGE_SELF
%3 = call i32 @getrusage(i32 %2, %struct.rusage* %1)
%4 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i32 0, i32 1
%5 = getelementptr inbounds %struct.TYPE_3__, %struct.TYPE_3__* %4, i32 0, i32 1
%6 = load i32, i32* %5
%7 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i32 0, i32 1
%8 = getelementptr inbounds %struct.TYPE_3__, %struct.TYPE_3__* %7, i32 0, i32 0
%9 = load i32, i32* %8
%10 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i32 0, i32 0
%11 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %10, i32 0, i32 1
%12 = load i32, i32* %11
%13 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i32 0, i32 0
%14 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %13, i32 0, i32 0
%15 = load i32, i32* %14
%16 = call i32 @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str, i64 0, i64 0), i32 %6, i32 %9, i32 %12, i32 %15)
ret void
}

LLVM IR (-O2):
%struct.rusage = type { %struct.TYPE_4__, %struct.TYPE_3__ }
%struct.TYPE_4__ = type { i32, i32 }
%struct.TYPE_3__ = type { i32, i32 }
@RUSAGE_SELF = global i32 0
@.str = [52 x i8] c"CPU time: %ld.%06ld sec user, %ld.%06ld sec system\0A\00"
define void @print_cpu_time() {
%1 = alloca %struct.rusage
%2 = bitcast %struct.rusage* %1 to i8*
%3 = load i32, i32* @RUSAGE_SELF
%4 = call i32 @getrusage(i32 %3, %struct.rusage* %1)
%5 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i64 0, i32 1, i32 1
%6 = load i32, i32* %5
%7 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i64 0, i32 1, i32 0
%8 = load i32, i32* %7
%9 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i64 0, i32 0, i32 1
%10 = load i32, i32* %9
%11 = getelementptr inbounds %struct.rusage, %struct.rusage* %1, i64 0, i32 0, i32 0
%12 = load i32, i32* %11
%13 = call i32 @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str, i64 0, i64 0), i32 %6, i32 %8, i32 %10, i32 %12)
ret void
}