#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 pow(double, int);
double CE_pHCO2_P(double pH, double CO2, double K1, double K2, double Kw,
                  double f) {
  double H3O, t0;
  H3O = pow(10, (3 - pH)) / f;
  K1 = K1 / pow(f, 2);
  K2 = K2 / pow(f, 4);
  Kw = Kw / pow(f, 2);
  t0 = -(-K1 * CO2 * K2 + CO2 * H3O * H3O - Kw * H3O + H3O * H3O * H3O) /
       (H3O * H3O);
  return t0;
}


x86 assembly (clang, -O0):
<CE_pHCO2_P>:
push   %rbp
mov    %rsp,%rbp
sub    $0x60,%rsp
movsd  %xmm0,-0x8(%rbp)
movsd  %xmm1,-0x10(%rbp)
movsd  %xmm2,-0x18(%rbp)
movsd  %xmm3,-0x20(%rbp)
movsd  %xmm4,-0x28(%rbp)
movsd  %xmm5,-0x30(%rbp)
movsd  0xeca(%rip),%xmm0
subsd  -0x8(%rbp),%xmm0
cvttsd2si %xmm0,%edi
movsd  0xeb1(%rip),%xmm0
call   1030 <pow@plt>
divsd  -0x30(%rbp),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x18(%rbp),%xmm0
movsd  %xmm0,-0x58(%rbp)
movsd  -0x30(%rbp),%xmm0
mov    $0x2,%edi
call   1030 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x58(%rbp),%xmm0
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x18(%rbp)
movsd  -0x20(%rbp),%xmm0
movsd  %xmm0,-0x50(%rbp)
movsd  -0x30(%rbp),%xmm0
mov    $0x4,%edi
call   1030 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x50(%rbp),%xmm0
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x20(%rbp)
movsd  -0x28(%rbp),%xmm0
movsd  %xmm0,-0x48(%rbp)
movsd  -0x30(%rbp),%xmm0
mov    $0x2,%edi
call   1030 <pow@plt>
movaps %xmm0,%xmm1
movsd  -0x48(%rbp),%xmm0
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x28(%rbp)
movsd  -0x18(%rbp),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
mulsd  -0x10(%rbp),%xmm0
movsd  -0x20(%rbp),%xmm2
movsd  -0x10(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  -0x28(%rbp),%xmm1
movsd  -0x38(%rbp),%xmm2
movq   %xmm1,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm1
mulsd  %xmm2,%xmm1
addsd  %xmm0,%xmm1
movsd  -0x38(%rbp),%xmm0
mulsd  -0x38(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm2
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
movsd  -0x38(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x40(%rbp)
movsd  -0x40(%rbp),%xmm0
add    $0x60,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<CE_pHCO2_P>:
sub    $0x48,%rsp
movsd  %xmm5,(%rsp)
movsd  %xmm4,0x28(%rsp)
movsd  %xmm3,0x8(%rsp)
movsd  %xmm2,0x18(%rsp)
movsd  %xmm1,0x20(%rsp)
movsd  0xec7(%rip),%xmm1
subsd  %xmm0,%xmm1
cvttsd2si %xmm1,%edi
movsd  0xebf(%rip),%xmm0
call   1030 <pow@plt>
movapd %xmm0,%xmm1
movsd  (%rsp),%xmm0
divsd  %xmm0,%xmm1
movapd %xmm1,0x30(%rsp)
mov    $0x2,%edi
call   1030 <pow@plt>
movsd  %xmm0,0x10(%rsp)
movsd  (%rsp),%xmm0
mov    $0x4,%edi
call   1030 <pow@plt>
movsd  0x8(%rsp),%xmm1
divsd  %xmm0,%xmm1
movsd  %xmm1,0x8(%rsp)
movsd  (%rsp),%xmm0
mov    $0x2,%edi
call   1030 <pow@plt>
movsd  0x18(%rsp),%xmm2
divsd  0x10(%rsp),%xmm2
movsd  0x20(%rsp),%xmm1
mulsd  %xmm1,%xmm2
mulsd  0x8(%rsp),%xmm2
movapd 0x30(%rsp),%xmm3
mulsd  %xmm3,%xmm1
mulsd  %xmm3,%xmm1
subsd  %xmm2,%xmm1
movsd  0x28(%rsp),%xmm2
divsd  %xmm0,%xmm2
mulsd  %xmm3,%xmm2
subsd  %xmm2,%xmm1
movapd %xmm3,%xmm0
mulsd  %xmm3,%xmm0
mulsd  %xmm0,%xmm3
addsd  %xmm1,%xmm3
xorpd  0xe19(%rip),%xmm3
divsd  %xmm0,%xmm3
movapd %xmm3,%xmm0
add    $0x48,%rsp
ret

LLVM IR (-O0):
define double @CE_pHCO2_P(double %0, double %1, double %2, double %3, double %4, double %5) {
%7 = alloca double
%8 = alloca double
%9 = alloca double
%10 = alloca double
%11 = alloca double
%12 = alloca double
%13 = alloca double
%14 = alloca double
store double %0, double* %7
store double %1, double* %8
store double %2, double* %9
store double %3, double* %10
store double %4, double* %11
store double %5, double* %12
%15 = load double, double* %7
%16 = fsub double 3.000000e+00, %15
%17 = fptosi double %16 to i32
%18 = call double @pow(double 1.000000e+01, i32 %17)
%19 = load double, double* %12
%20 = fdiv double %18, %19
store double %20, double* %13
%21 = load double, double* %9
%22 = load double, double* %12
%23 = call double @pow(double %22, i32 2)
%24 = fdiv double %21, %23
store double %24, double* %9
%25 = load double, double* %10
%26 = load double, double* %12
%27 = call double @pow(double %26, i32 4)
%28 = fdiv double %25, %27
store double %28, double* %10
%29 = load double, double* %11
%30 = load double, double* %12
%31 = call double @pow(double %30, i32 2)
%32 = fdiv double %29, %31
store double %32, double* %11
%33 = load double, double* %9
%34 = fneg double %33
%35 = load double, double* %8
%36 = fmul double %34, %35
%37 = load double, double* %10
%38 = load double, double* %8
%39 = load double, double* %13
%40 = fmul double %38, %39
%41 = load double, double* %13
%42 = fmul double %40, %41
%43 = call double @llvm.fmuladd.f64(double %36, double %37, double %42)
%44 = load double, double* %11
%45 = load double, double* %13
%46 = fneg double %44
%47 = call double @llvm.fmuladd.f64(double %46, double %45, double %43)
%48 = load double, double* %13
%49 = load double, double* %13
%50 = fmul double %48, %49
%51 = load double, double* %13
%52 = call double @llvm.fmuladd.f64(double %50, double %51, double %47)
%53 = fneg double %52
%54 = load double, double* %13
%55 = load double, double* %13
%56 = fmul double %54, %55
%57 = fdiv double %53, %56
store double %57, double* %14
%58 = load double, double* %14
ret double %58
}

LLVM IR (-O2):
define double @CE_pHCO2_P(double %0, double %1, double %2, double %3, double %4, double %5) {
%7 = fsub double 3.000000e+00, %0
%8 = fptosi double %7 to i32
%9 = tail call double @pow(double 1.000000e+01, i32 %8)
%10 = fdiv double %9, %5
%11 = tail call double @pow(double %5, i32 2)
%12 = tail call double @pow(double %5, i32 4)
%13 = fdiv double %3, %12
%14 = tail call double @pow(double %5, i32 2)
%15 = fneg double %2
%16 = fdiv double %15, %11
%17 = fmul double %16, %1
%18 = fmul double %10, %1
%19 = fmul double %10, %18
%20 = tail call double @llvm.fmuladd.f64(double %17, double %13, double %19)
%21 = fneg double %4
%22 = fdiv double %21, %14
%23 = tail call double @llvm.fmuladd.f64(double %22, double %10, double %20)
%24 = fmul double %10, %10
%25 = tail call double @llvm.fmuladd.f64(double %24, double %10, double %23)
%26 = fneg double %25
%27 = fdiv double %26, %24
ret double %27
}