#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 */
double exp(double const);
double pow(double const, double);
double sqrt(double);
double HO_2(const double a, const double x) {
  double retval = sqrt(0.2e1) * pow(a, 0.1e1 / 0.4e1) *
                  (0.2e1 * a * x * x - 0.1e1) * exp(-a * x * x / 0.2e1) *
                  pow(0.3141592654e1, -0.1e1 / 0.4e1) / 0.2e1;
  return retval;
}


x86 assembly (clang, -O0):
<HO_2>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movsd  %xmm0,-0x8(%rbp)
movsd  %xmm1,-0x10(%rbp)
movsd  0xeb6(%rip),%xmm0
call   1050 <sqrt@plt>
movsd  %xmm0,-0x30(%rbp)
movsd  -0x8(%rbp),%xmm0
movsd  0xebf(%rip),%xmm1
call   1040 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x30(%rbp),%xmm0
mulsd  %xmm1,%xmm0
movsd  0xe86(%rip),%xmm1
mulsd  -0x8(%rbp),%xmm1
mulsd  -0x10(%rbp),%xmm1
movsd  -0x10(%rbp),%xmm2
mulsd  %xmm2,%xmm1
movsd  0xe83(%rip),%xmm2
addsd  %xmm2,%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x28(%rbp)
movsd  -0x8(%rbp),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
mulsd  -0x10(%rbp),%xmm0
mulsd  -0x10(%rbp),%xmm0
movsd  0xe30(%rip),%xmm1
divsd  %xmm1,%xmm0
call   1030 <exp@plt>
movaps %xmm0,%xmm1
movsd  -0x28(%rbp),%xmm0
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x20(%rbp)
movsd  0xe16(%rip),%xmm0
movsd  0xe16(%rip),%xmm1
call   1040 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x20(%rbp),%xmm0
mulsd  %xmm1,%xmm0
movsd  0xded(%rip),%xmm1
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x18(%rbp)
movsd  -0x18(%rbp),%xmm0
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<HO_2>:
sub    $0x28,%rsp
movsd  %xmm1,(%rsp)
movapd %xmm0,0x10(%rsp)
movsd  0xec9(%rip),%xmm1
call   1040 <pow@plt>
mulsd  0xec4(%rip),%xmm0
movapd 0x10(%rsp),%xmm3
movapd %xmm3,%xmm1
addsd  %xmm3,%xmm1
movsd  (%rsp),%xmm2
mulsd  %xmm2,%xmm1
mulsd  %xmm2,%xmm1
addsd  0xea9(%rip),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,0x8(%rsp)
movapd %xmm3,%xmm0
xorpd  0xeb3(%rip),%xmm0
mulsd  %xmm2,%xmm0
mulsd  %xmm2,%xmm0
mulsd  0xe8b(%rip),%xmm0
call   1030 <exp@plt>
mulsd  0x8(%rsp),%xmm0
mulsd  0xe80(%rip),%xmm0
mulsd  0xe70(%rip),%xmm0
add    $0x28,%rsp
ret

LLVM IR (-O0):
define double @HO_2(double %0, double %1) {
%3 = alloca double
%4 = alloca double
%5 = alloca double
store double %0, double* %3
store double %1, double* %4
%6 = call double @sqrt(double 2.000000e+00)
%7 = load double, double* %3
%8 = call double @pow(double %7, double 2.500000e-01)
%9 = fmul double %6, %8
%10 = load double, double* %3
%11 = fmul double 2.000000e+00, %10
%12 = load double, double* %4
%13 = fmul double %11, %12
%14 = load double, double* %4
%15 = call double @llvm.fmuladd.f64(double %13, double %14, double -1.000000e+00)
%16 = fmul double %9, %15
%17 = load double, double* %3
%18 = fneg double %17
%19 = load double, double* %4
%20 = fmul double %18, %19
%21 = load double, double* %4
%22 = fmul double %20, %21
%23 = fdiv double %22, 2.000000e+00
%24 = call double @exp(double %23)
%25 = fmul double %16, %24
%26 = call double @pow(double 0x400921FB54524550, double -2.500000e-01)
%27 = fmul double %25, %26
%28 = fdiv double %27, 2.000000e+00
store double %28, double* %5
%29 = load double, double* %5
ret double %29
}

LLVM IR (-O2):
define double @HO_2(double %0, double %1) {
%3 = tail call double @pow(double %0, double 2.500000e-01)
%4 = fmul double %3, 0x3FF6A09E667F3BCD
%5 = fmul double %0, 2.000000e+00
%6 = fmul double %5, %1
%7 = tail call double @llvm.fmuladd.f64(double %6, double %1, double -1.000000e+00)
%8 = fmul double %7, %4
%9 = fneg double %0
%10 = fmul double %9, %1
%11 = fmul double %10, %1
%12 = fmul double %11, 5.000000e-01
%13 = tail call double @exp(double %12)
%14 = fmul double %13, %8
%15 = fmul double %14, 0x3FE809387011FA5F
%16 = fmul double %15, 5.000000e-01
ret double %16
}