#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 EXIT_SUCCESS;
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  float celsius, fahr;
  int max, min, step;
  max = 300;
  min = 0;
  step = 20;
  printf("Celsius\tFahrenheit\n");
  for (celsius = max; celsius >= min; celsius -= step) {
    fahr = (9 * celsius / 5) + 32;
    printf("%f\t%f\n", celsius, fahr);
  }
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x12c,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
movl   $0x14,-0x18(%rbp)
lea    0xed1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cvtsi2ssl -0x10(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm0
cvtsi2ssl -0x14(%rbp),%xmm1
ucomiss %xmm1,%xmm0
jb     11c1 <main+0xb1>
movss  0xea1(%rip),%xmm0
mulss  -0x8(%rbp),%xmm0
movss  0xe90(%rip),%xmm1
divss  %xmm1,%xmm0
movss  0xe80(%rip),%xmm1
addss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0xc(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe7e(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
cvtsi2ssl -0x18(%rbp),%xmm1
movss  -0x8(%rbp),%xmm0
subss  %xmm1,%xmm0
movss  %xmm0,-0x8(%rbp)
jmp    114c <main+0x3c>
mov    0x2e18(%rip),%rax
mov    (%rax),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
mov    $0x140,%ebp
lea    0xed1(%rip),%rbx
nopl   0x0(%rax,%rax,1)
add    $0xffffffec,%ebp
xorps  %xmm1,%xmm1
cvtsi2ss %ebp,%xmm1
xorps  %xmm0,%xmm0
cvtss2sd %xmm1,%xmm0
mulss  0xea7(%rip),%xmm1
divss  0xea3(%rip),%xmm1
addss  0xe9f(%rip),%xmm1
cvtss2sd %xmm1,%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
cmp    $0x13,%ebp
ja     1140 <main+0x20>
mov    0x2e5d(%rip),%rax
mov    (%rax),%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Celsius\09Fahrenheit\0A\00"
@.str.1 = [7 x i8] c"%f\09%f\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
store i32 0, i32* %1
store i32 300, i32* %4
store i32 0, i32* %5
store i32 20, i32* %6
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%8 = load i32, i32* %4
%9 = sitofp i32 %8 to float
store float %9, float* %2
br label %10
10: ; preds = %25, %0
%11 = load float, float* %2
%12 = load i32, i32* %5
%13 = sitofp i32 %12 to float
%14 = fcmp oge float %11, %13
br i1 %14, label %15, label %30
15: ; preds = %10
%16 = load float, float* %2
%17 = fmul float 9.000000e+00, %16
%18 = fdiv float %17, 5.000000e+00
%19 = fadd float %18, 3.200000e+01
store float %19, float* %3
%20 = load float, float* %2
%21 = fpext float %20 to double
%22 = load float, float* %3
%23 = fpext float %22 to double
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double %21, double %23)
br label %25
25: ; preds = %15
%26 = load i32, i32* %6
%27 = sitofp i32 %26 to float
%28 = load float, float* %2
%29 = fsub float %28, %27
store float %29, float* %2
br label %10
30: ; preds = %10
%31 = load i32, i32* @EXIT_SUCCESS
ret i32 %31
}

LLVM IR (-O2):
@.str.1 = [7 x i8] c"%f\09%f\0A\00"
@EXIT_SUCCESS = global i32 0
@str = [19 x i8] c"Celsius\09Fahrenheit\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str, i64 0, i64 0))
br label %2
2: ; preds = %0, %2
%3 = phi i32 [ 300, %0 ], [ %11, %2 ]
%4 = sitofp i32 %3 to float
%5 = fmul float %4, 9.000000e+00
%6 = fdiv float %5, 5.000000e+00
%7 = fadd float %6, 3.200000e+01
%8 = fpext float %4 to double
%9 = fpext float %7 to double
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double %8, double %9)
%11 = add nsw i32 %3, -20
%12 = icmp ult i32 %3, 20
br i1 %12, label %13, label %2
13: ; preds = %2
%14 = load i32, i32* @EXIT_SUCCESS
ret i32 %14
}