#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 */
int /*<<< orphan*/ printf(char *, ...);
int main() {
  float fahr, celsius;
  float lower, upper, step;
  lower = 0;
  upper = 300;
  step = 20;
  fahr = lower;
  while (fahr <= upper) {
    celsius = (5.0 / 9.0) * (fahr - 32.0);
    printf("%3.0f %6.1f\n", fahr, celsius);
    fahr = fahr + step;
  }
  printf("\n\n");
  int f;
  for (f = 0; f <= 300; f = f + 20)
    printf("%3d %6.1f\n", f, (5.0 / 9.0) * (f - 32));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x10(%rbp)
movss  0xed5(%rip),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  0xec4(%rip),%xmm0
movss  %xmm0,-0x18(%rbp)
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm1
movss  -0x14(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jb     11bc <main+0xac>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xea1(%rip),%xmm0
subsd  %xmm0,%xmm1
movsd  0xe8d(%rip),%xmm0
mulsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0xc(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe77(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0x8(%rbp),%xmm0
addss  -0x18(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
jmp    114b <main+0x3b>
lea    0xe62(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x1c(%rbp)
cmpl   $0x12c,-0x1c(%rbp)
jg     1213 <main+0x103>
mov    -0x1c(%rbp),%esi
mov    -0x1c(%rbp),%eax
sub    $0x20,%eax
cvtsi2sd %eax,%xmm1
movsd  0xe15(%rip),%xmm0
mulsd  %xmm1,%xmm0
lea    0xe2a(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x1c(%rbp),%eax
add    $0x14,%eax
mov    %eax,-0x1c(%rbp)
jmp    11d1 <main+0xc1>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0x1040(%rip),%rbx
movsd  0xed0(%rip),%xmm1
xorps  %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xec3(%rip),%xmm0
movsd  0xec3(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xeb9(%rip),%xmm0
movsd  0xeb9(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xeaf(%rip),%xmm0
movsd  0xeaf(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xea5(%rip),%xmm0
movsd  0xea5(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe9b(%rip),%xmm0
movsd  0xe9b(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe91(%rip),%xmm0
movsd  0xe91(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe87(%rip),%xmm0
mov    %rbx,%rdi
movsd  0xe3c(%rip),%xmm1
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe75(%rip),%xmm0
movsd  0xe75(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe6b(%rip),%xmm0
movsd  0xe6b(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe61(%rip),%xmm0
movsd  0xe61(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe57(%rip),%xmm0
movsd  0xe57(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe4d(%rip),%xmm0
movsd  0xe4d(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe43(%rip),%xmm0
movsd  0xe43(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe39(%rip),%xmm0
movsd  0xe39(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe2f(%rip),%xmm0
movsd  0xe2f(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
lea    0xeb4(%rip),%rdi
call   1030 <puts@plt>
lea    0xe9f(%rip),%rbx
movsd  0xe12(%rip),%xmm0
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xe06(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x14,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xdf7(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x28,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xde8(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x3c,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xdd9(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x50,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xdca(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x64,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xdbb(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x78,%esi
mov    $0x1,%al
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x8c,%esi
movsd  0xca4(%rip),%xmm0
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd95(%rip),%xmm0
mov    %rbx,%rdi
mov    $0xa0,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd86(%rip),%xmm0
mov    %rbx,%rdi
mov    $0xb4,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd77(%rip),%xmm0
mov    %rbx,%rdi
mov    $0xc8,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd68(%rip),%xmm0
mov    %rbx,%rdi
mov    $0xdc,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd59(%rip),%xmm0
mov    %rbx,%rdi
mov    $0xf0,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd4a(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x104,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd3b(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x118,%esi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0xd2c(%rip),%xmm0
mov    %rbx,%rdi
mov    $0x12c,%esi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [13 x i8] c"%3.0f %6.1f\0A\00"
@.str.1 = [3 x i8] c"\0A\0A\00"
@.str.2 = [11 x i8] c"%3d %6.1f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
%6 = alloca float
%7 = alloca i32
store i32 0, i32* %1
store float 0.000000e+00, float* %4
store float 3.000000e+02, float* %5
store float 2.000000e+01, float* %6
%8 = load float, float* %4
store float %8, float* %2
br label %9
9: ; preds = %13, %0
%10 = load float, float* %2
%11 = load float, float* %5
%12 = fcmp ole float %10, %11
br i1 %12, label %13, label %27
13: ; preds = %9
%14 = load float, float* %2
%15 = fpext float %14 to double
%16 = fsub double %15, 3.200000e+01
%17 = fmul double 0x3FE1C71C71C71C72, %16
%18 = fptrunc double %17 to float
store float %18, float* %3
%19 = load float, float* %2
%20 = fpext float %19 to double
%21 = load float, float* %3
%22 = fpext float %21 to double
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double %20, double %22)
%24 = load float, float* %2
%25 = load float, float* %6
%26 = fadd float %24, %25
store float %26, float* %2
br label %9
27: ; preds = %9
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
store i32 0, i32* %7
br label %29
29: ; preds = %39, %27
%30 = load i32, i32* %7
%31 = icmp sle i32 %30, 300
br i1 %31, label %32, label %42
32: ; preds = %29
%33 = load i32, i32* %7
%34 = load i32, i32* %7
%35 = sub nsw i32 %34, 32
%36 = sitofp i32 %35 to double
%37 = fmul double 0x3FE1C71C71C71C72, %36
%38 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 %33, double %37)
br label %39
39: ; preds = %32
%40 = load i32, i32* %7
%41 = add nsw i32 %40, 20
store i32 %41, i32* %7
br label %29
42: ; preds = %29
ret i32 0
}

LLVM IR (-O2):
@.str = [13 x i8] c"%3.0f %6.1f\0A\00"
@.str.2 = [11 x i8] c"%3d %6.1f\0A\00"
@str = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 0.000000e+00, double 0xC031C71C80000000)
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.000000e+01, double 0xC01AAAAAA0000000)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 4.000000e+01, double 0x4011C71C80000000)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 6.000000e+01, double 0x402F1C71C0000000)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 8.000000e+01, double 0x403AAAAAA0000000)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 1.000000e+02, double 0x4042E38E40000000)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 1.200000e+02, double 0x404871C720000000)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 1.400000e+02, double 6.000000e+01)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 1.600000e+02, double 0x4051C71C80000000)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 1.800000e+02, double 0x40548E38E0000000)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.000000e+02, double 0x4057555560000000)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.200000e+02, double 0x405A1C71C0000000)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.400000e+02, double 0x405CE38E40000000)
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.600000e+02, double 0x405FAAAAA0000000)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 2.800000e+02, double 0x406138E380000000)
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), double 3.000000e+02, double 0x40629C71C0000000)
%17 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 0, double 0xC031C71C71C71C72)
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 20, double 0xC01AAAAAAAAAAAAB)
%20 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 40, double 0x4011C71C71C71C72)
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 60, double 0x402F1C71C71C71C8)
%22 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 80, double 0x403AAAAAAAAAAAAB)
%23 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 100, double 0x4042E38E38E38E39)
%24 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 120, double 0x404871C71C71C71D)
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 140, double 6.000000e+01)
%26 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 160, double 0x4051C71C71C71C72)
%27 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 180, double 0x40548E38E38E38E4)
%28 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 200, double 0x4057555555555556)
%29 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 220, double 0x405A1C71C71C71C7)
%30 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 240, double 0x405CE38E38E38E39)
%31 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 260, double 0x405FAAAAAAAAAAAB)
%32 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 280, double 0x406138E38E38E38E)
%33 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 300, double 0x40629C71C71C71C7)
ret i32 0
}