#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 const exp(double const);
double const pow(double const, double);
double const sqrt(double);
double HO_1(const double a, const double x) {
  double retval = sqrt(0.2e1) * pow(a, 0.3e1 / 0.4e1) * x *
                  exp(-a * x * x / 0.2e1) * pow(0.3141592654e1, -0.1e1 / 0.4e1);
  return retval;
}


x86 assembly (clang, -O0):
<HO_1>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movsd  %xmm0,-0x8(%rbp)
movsd  %xmm1,-0x10(%rbp)
movsd  0xec6(%rip),%xmm0
call   1050 <sqrt@plt>
movsd  %xmm0,-0x30(%rbp)
movsd  -0x8(%rbp),%xmm0
movsd  0xeb7(%rip),%xmm1
call   1040 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x30(%rbp),%xmm0
mulsd  %xmm1,%xmm0
mulsd  -0x10(%rbp),%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  0xe66(%rip),%xmm1
divsd  %xmm1,%xmm0
call   1030 <exp@plt>
movaps %xmm0,%xmm1
movsd  -0x28(%rbp),%xmm0
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x20(%rbp)
movsd  0xe34(%rip),%xmm0
movsd  0xe34(%rip),%xmm1
call   1040 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x20(%rbp),%xmm0
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x18(%rbp)
movsd  -0x18(%rbp),%xmm0
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<HO_1>:
sub    $0x18,%rsp
movsd  %xmm1,0x8(%rsp)
movsd  %xmm0,(%rsp)
movsd  0xec9(%rip),%xmm1
call   1040 <pow@plt>
mulsd  0xec4(%rip),%xmm0
movsd  0x8(%rsp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,0x10(%rsp)
movsd  (%rsp),%xmm0
mulsd  %xmm1,%xmm0
mulsd  %xmm1,%xmm0
mulsd  0xea7(%rip),%xmm0
call   1030 <exp@plt>
mulsd  0x10(%rsp),%xmm0
mulsd  0xe9c(%rip),%xmm0
add    $0x18,%rsp
ret

LLVM IR (-O0):
define double @HO_1(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 7.500000e-01)
%9 = fmul double %6, %8
%10 = load double, double* %4
%11 = fmul double %9, %10
%12 = load double, double* %3
%13 = fneg double %12
%14 = load double, double* %4
%15 = fmul double %13, %14
%16 = load double, double* %4
%17 = fmul double %15, %16
%18 = fdiv double %17, 2.000000e+00
%19 = call double @exp(double %18)
%20 = fmul double %11, %19
%21 = call double @pow(double 0x400921FB54524550, double -2.500000e-01)
%22 = fmul double %20, %21
store double %22, double* %5
%23 = load double, double* %5
ret double %23
}

LLVM IR (-O2):
define double @HO_1(double %0, double %1) {
%3 = tail call double @pow(double %0, double 7.500000e-01)
%4 = fmul double %3, 0x3FF6A09E667F3BCD
%5 = fmul double %4, %1
%6 = fneg double %0
%7 = fmul double %6, %1
%8 = fmul double %7, %1
%9 = fmul double %8, 5.000000e-01
%10 = tail call double @exp(double %9)
%11 = fmul double %10, %5
%12 = fmul double %11, 0x3FE809387011FA5F
ret double %12
}