#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() {
  float fahr, celsius;
  float lower, upper, step;
  printf("\nTemperature Conversion Table\n\n");
  for (fahr = 300; fahr >= 0; fahr -= 20) {
    celsius = 5.0 / 9.0 * (fahr - 32.0);
    printf("%3.0f\t%6.1f\n", fahr, celsius);
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xef2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  0xecb(%rip),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm0
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jb     11b0 <main+0xa0>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xeb4(%rip),%xmm0
subsd  %xmm0,%xmm1
movsd  0xea0(%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    0xeaa(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0x8(%rbp),%xmm0
movss  0xe62(%rip),%xmm1
subss  %xmm1,%xmm0
movss  %xmm0,-0x8(%rbp)
jmp    113a <main+0x2a>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xfd5(%rip),%rdi
call   1030 <puts@plt>
lea    0xfbc(%rip),%rbx
movsd  0xec4(%rip),%xmm0
movsd  0xec4(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xeba(%rip),%xmm0
movsd  0xeba(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xeb0(%rip),%xmm0
movsd  0xeb0(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xea6(%rip),%xmm0
movsd  0xea6(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe9c(%rip),%xmm0
movsd  0xe9c(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe92(%rip),%xmm0
movsd  0xe92(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe88(%rip),%xmm0
movsd  0xe88(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe7e(%rip),%xmm0
movsd  0xe7e(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe74(%rip),%xmm0
movsd  0xe74(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe6a(%rip),%xmm0
movsd  0xe6a(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe60(%rip),%xmm0
movsd  0xe60(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe56(%rip),%xmm0
movsd  0xe56(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe4c(%rip),%xmm1
mov    %rbx,%rdi
movsd  0xe09(%rip),%xmm0
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe3a(%rip),%xmm0
movsd  0xe3a(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe30(%rip),%xmm0
movsd  0xe30(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
movsd  0xe26(%rip),%xmm1
xorps  %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x2,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [32 x i8] c"\0ATemperature Conversion Table\0A\0A\00"
@.str.1 = [13 x i8] c"%3.0f\09%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
store i32 0, i32* %1
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
store float 3.000000e+02, float* %2
br label %8
8: ; preds = %22, %0
%9 = load float, float* %2
%10 = fcmp oge float %9, 0.000000e+00
br i1 %10, label %11, label %25
11: ; preds = %8
%12 = load float, float* %2
%13 = fpext float %12 to double
%14 = fsub double %13, 3.200000e+01
%15 = fmul double 0x3FE1C71C71C71C72, %14
%16 = fptrunc double %15 to float
store float %16, float* %3
%17 = load float, float* %2
%18 = fpext float %17 to double
%19 = load float, float* %3
%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)
br label %22
22: ; preds = %11
%23 = load float, float* %2
%24 = fsub float %23, 2.000000e+01
store float %24, float* %2
br label %8
25: ; preds = %8
%26 = load i32, i32* %1
ret i32 %26
}

LLVM IR (-O2):
@.str.1 = [13 x i8] c"%3.0f\09%6.1f\0A\00"
@str = [31 x i8] c"\0ATemperature Conversion Table\0A\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 3.000000e+02, double 0x40629C71C0000000)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.800000e+02, double 0x406138E380000000)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.600000e+02, double 0x405FAAAAA0000000)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.400000e+02, double 0x405CE38E40000000)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.200000e+02, double 0x405A1C71C0000000)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.000000e+02, double 0x4057555560000000)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 1.800000e+02, double 0x40548E38E0000000)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, 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.1, i64 0, i64 0), double 1.400000e+02, double 6.000000e+01)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 1.200000e+02, double 0x404871C720000000)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 1.000000e+02, double 0x4042E38E40000000)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 8.000000e+01, double 0x403AAAAAA0000000)
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 6.000000e+01, double 0x402F1C71C0000000)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 4.000000e+01, double 0x4011C71C80000000)
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 2.000000e+01, double 0xC01AAAAAA0000000)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double 0.000000e+00, double 0xC031C71C80000000)
ret i32 0
}