#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;
  int lower, upper, step;
  lower = -40;
  upper = 160;
  step = 20;
  printf("  Translate C deg. in F deg.\n");
  printf("\t C     F\n");
  celsius = lower;
  while (celsius <= upper) {
    fahr = (9.0 / 5.0 * celsius) + 32.0;
    printf("%10.0f %6.1f\n", celsius, fahr);
    celsius += step;
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0xffffffd8,-0x10(%rbp)
movl   $0xa0,-0x14(%rbp)
movl   $0x14,-0x18(%rbp)
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cvtsi2ssl -0x10(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm1
cvtsi2ssl -0x14(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jb     11cb <main+0xbb>
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movsd  0xe82(%rip),%xmm1
mulsd  %xmm1,%xmm0
movsd  0xe7e(%rip),%xmm1
addsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe89(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
cvtsi2ssl -0x18(%rbp),%xmm0
addss  -0xc(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
jmp    115a <main+0x4a>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xf7e(%rip),%rdi
call   1030 <puts@plt>
lea    0xf8f(%rip),%rdi
call   1030 <puts@plt>
lea    0xf58(%rip),%rbx
movsd  0xeb8(%rip),%xmm0
mov    %rbx,%rdi
movaps %xmm0,%xmm1
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),%xmm1
xorps  %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe94(%rip),%xmm0
movsd  0xe94(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe8a(%rip),%xmm0
movsd  0xe8a(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe80(%rip),%xmm0
movsd  0xe80(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe76(%rip),%xmm0
movsd  0xe76(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe6c(%rip),%xmm0
movsd  0xe6c(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe62(%rip),%xmm0
movsd  0xe62(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe58(%rip),%xmm1
mov    %rbx,%rdi
movsd  0xe15(%rip),%xmm0
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe46(%rip),%xmm0
movsd  0xe46(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [30 x i8] c" Translate C deg. in F deg.\0A\00"
@.str.1 = [11 x i8] c"\09 C F\0A\00"
@.str.2 = [14 x i8] c"%10.0f %6.1f\0A\00"
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 -40, i32* %4
store i32 160, i32* %5
store i32 20, i32* %6
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%9 = load i32, i32* %4
%10 = sitofp i32 %9 to float
store float %10, float* %3
br label %11
11: ; preds = %16, %0
%12 = load float, float* %3
%13 = load i32, i32* %5
%14 = sitofp i32 %13 to float
%15 = fcmp ole float %12, %14
br i1 %15, label %16, label %30
16: ; preds = %11
%17 = load float, float* %3
%18 = fpext float %17 to double
%19 = call double @llvm.fmuladd.f64(double 1.800000e+00, double %18, double 3.200000e+01)
%20 = fptrunc double %19 to float
store float %20, float* %2
%21 = load float, float* %3
%22 = fpext float %21 to double
%23 = load float, float* %2
%24 = fpext float %23 to double
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double %22, double %24)
%26 = load i32, i32* %6
%27 = sitofp i32 %26 to float
%28 = load float, float* %3
%29 = fadd float %28, %27
store float %29, float* %3
br label %11
30: ; preds = %11
%31 = load i32, i32* %1
ret i32 %31
}

LLVM IR (-O2):
@.str.2 = [14 x i8] c"%10.0f %6.1f\0A\00"
@str = [29 x i8] c" Translate C deg. in F deg.\00"
@str.3 = [10 x i8] c"\09 C F\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @str.3, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double -4.000000e+01, double -4.000000e+01)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double -2.000000e+01, double -4.000000e+00)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 0.000000e+00, double 3.200000e+01)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 2.000000e+01, double 6.800000e+01)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 4.000000e+01, double 1.040000e+02)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 6.000000e+01, double 1.400000e+02)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 8.000000e+01, double 1.760000e+02)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 1.000000e+02, double 2.120000e+02)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 1.200000e+02, double 2.480000e+02)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 1.400000e+02, double 2.840000e+02)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), double 1.600000e+02, double 3.200000e+02)
ret i32 0
}