#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(void) {
  float fahr, celsius;
  float lower, upper, step;
  lower = 0;
  upper = 300;
  step = 20;
  printf("Celsius-Fahrenheit table\n");
  celsius = lower;
  while (celsius <= upper) {
    fahr = ((celsius / 5) * 9) + 32;
    printf("%3.0f %3.0f\n", celsius, fahr);
    celsius = celsius + step;
  }
  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)
lea    0xecc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm1
movss  -0x14(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jb     11ce <main+0xbe>
movss  -0xc(%rbp),%xmm0
movss  0xe97(%rip),%xmm1
divss  %xmm1,%xmm0
movss  0xe83(%rip),%xmm1
mulss  %xmm1,%xmm0
movss  0xe7b(%rip),%xmm1
addss  %xmm1,%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe7b(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0xc(%rbp),%xmm0
addss  -0x18(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
jmp    1159 <main+0x49>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
lea    0xeef(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffec,%ebp
lea    0xed1(%rip),%rbx
nopl   0x0(%rax,%rax,1)
add    $0x14,%ebp
xorps  %xmm1,%xmm1
cvtsi2ss %ebp,%xmm1
xorps  %xmm0,%xmm0
cvtss2sd %xmm1,%xmm0
divss  0xea7(%rip),%xmm1
mulss  0xea3(%rip),%xmm1
addss  0xe9f(%rip),%xmm1
cvtss2sd %xmm1,%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
cmp    $0x119,%ebp
jb     1140 <main+0x20>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [26 x i8] c"Celsius-Fahrenheit table\0A\00"
@.str.1 = [13 x i8] c"%3.0f %3.0f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
%6 = alloca float
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
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%8 = load float, float* %4
store float %8, float* %3
br label %9
9: ; preds = %13, %0
%10 = load float, float* %3
%11 = load float, float* %5
%12 = fcmp ole float %10, %11
br i1 %12, label %13, label %25
13: ; preds = %9
%14 = load float, float* %3
%15 = fdiv float %14, 5.000000e+00
%16 = call float @llvm.fmuladd.f32(float %15, float 9.000000e+00, float 3.200000e+01)
store float %16, float* %2
%17 = load float, float* %3
%18 = fpext float %17 to double
%19 = load float, float* %2
%20 = fpext float %19 to double
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double %18, double %20)
%22 = load float, float* %3
%23 = load float, float* %6
%24 = fadd float %22, %23
store float %24, float* %3
br label %9
25: ; preds = %9
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [13 x i8] c"%3.0f %3.0f\0A\00"
@str = [25 x i8] c"Celsius-Fahrenheit table\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str, i64 0, i64 0))
br label %2
2: ; preds = %0, %2
%3 = phi i32 [ 0, %0 ], [ %10, %2 ]
%4 = sitofp i32 %3 to float
%5 = fdiv float %4, 5.000000e+00
%6 = tail call float @llvm.fmuladd.f32(float %5, float 9.000000e+00, float 3.200000e+01)
%7 = fpext float %4 to double
%8 = fpext float %6 to double
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double %7, double %8)
%10 = add nuw nsw i32 %3, 20
%11 = icmp ugt i32 %3, 280
br i1 %11, label %12, label %2
12: ; preds = %2
ret i32 0
}