#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 *, ...);
main() {
  int lower, upper, step;
  float fahr, cel;
  fahr = lower = 0;
  upper = 300;
  step = 30;
  printf("Celcius to Farenheit  Table\n");
  printf("Celcius Fahr\n");
  while (fahr <= upper) {
    cel = (5 * (fahr - 32)) / 9;
    printf("%3.2f\t%3.2f\n", cel, fahr);
    fahr += step;
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x14(%rbp)
movl   $0x12c,-0xc(%rbp)
movl   $0x1e,-0x10(%rbp)
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x14(%rbp),%xmm1
cvtsi2ssl -0xc(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jb     11cd <main+0xbd>
movss  -0x14(%rbp),%xmm1
movss  0xe90(%rip),%xmm0
subss  %xmm0,%xmm1
movss  0xe80(%rip),%xmm0
mulss  %xmm1,%xmm0
movss  0xe70(%rip),%xmm1
divss  %xmm1,%xmm0
movss  %xmm0,-0x18(%rbp)
movss  -0x18(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x14(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe85(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
cvtsi2ssl -0x10(%rbp),%xmm0
addss  -0x14(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    1158 <main+0x48>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xf8d(%rip),%rdi
call   1030 <puts@plt>
lea    0xf9d(%rip),%rdi
call   1030 <puts@plt>
lea    0xf68(%rip),%rbx
movsd  0xeb8(%rip),%xmm0
xorps  %xmm1,%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xeab(%rip),%xmm0
movsd  0xeab(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xea1(%rip),%xmm0
movsd  0xea1(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe97(%rip),%xmm0
movsd  0xe97(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe8d(%rip),%xmm0
movsd  0xe8d(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe83(%rip),%xmm0
movsd  0xe83(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe79(%rip),%xmm0
movsd  0xe79(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe6f(%rip),%xmm0
movsd  0xe6f(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe65(%rip),%xmm0
movsd  0xe65(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe5b(%rip),%xmm0
movsd  0xe5b(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe51(%rip),%xmm0
movsd  0xe51(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [29 x i8] c"Celcius to Farenheit Table\0A\00"
@.str.1 = [14 x i8] c"Celcius Fahr\0A\00"
@.str.2 = [13 x i8] c"%3.2f\09%3.2f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca float
%6 = alloca float
store i32 0, i32* %1
store i32 0, i32* %2
store float 0.000000e+00, float* %5
store i32 300, i32* %3
store i32 30, i32* %4
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0))
br label %9
9: ; preds = %14, %0
%10 = load float, float* %5
%11 = load i32, i32* %3
%12 = sitofp i32 %11 to float
%13 = fcmp ole float %10, %12
br i1 %13, label %14, label %28
14: ; preds = %9
%15 = load float, float* %5
%16 = fsub float %15, 3.200000e+01
%17 = fmul float 5.000000e+00, %16
%18 = fdiv float %17, 9.000000e+00
store float %18, float* %6
%19 = load float, float* %6
%20 = fpext float %19 to double
%21 = load float, float* %5
%22 = fpext float %21 to double
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double %20, double %22)
%24 = load i32, i32* %4
%25 = sitofp i32 %24 to float
%26 = load float, float* %5
%27 = fadd float %26, %25
store float %27, float* %5
br label %9
28: ; preds = %9
%29 = load i32, i32* %1
ret i32 %29
}

LLVM IR (-O2):
@.str.2 = [13 x i8] c"%3.2f\09%3.2f\0A\00"
@str = [28 x i8] c"Celcius to Farenheit Table\00"
@str.3 = [13 x i8] c"Celcius Fahr\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str.3, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0xC031C71C80000000, double 0.000000e+00)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0xBFF1C71C80000000, double 3.000000e+01)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x402F1C71C0000000, double 6.000000e+01)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x40401C71C0000000, double 9.000000e+01)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x404871C720000000, double 1.200000e+02)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x4050638E40000000, double 1.500000e+02)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x40548E38E0000000, double 1.800000e+02)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x4058B8E380000000, double 2.100000e+02)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x405CE38E40000000, double 2.400000e+02)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x4060871C80000000, double 2.700000e+02)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), double 0x40629C71C0000000, double 3.000000e+02)
ret i32 0
}