#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() {
  int f = 0;
  int c = 0;
  printf("Fahrenheit-Celsius\n");
  for (f; f <= 300; f = f + 20) {
    c = (f - 32) * 5 / 9;
    printf("    %d\t     %d\n", f, c);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xecc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x12c,-0x8(%rbp)
jg     117e <main+0x6e>
mov    -0x8(%rbp),%eax
sub    $0x20,%eax
imul   $0x5,%eax,%eax
mov    $0x9,%ecx
cltd
idiv   %ecx
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
lea    0xeab(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x14,%eax
mov    %eax,-0x8(%rbp)
jmp    113b <main+0x2b>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
lea    0xee4(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffec,%ebx
mov    $0xff60,%r15w
lea    0xebe(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
add    $0x14,%ebx
movswl %r15w,%eax
imul   $0x1c72,%eax,%eax
mov    %eax,%ecx
shr    $0x1f,%ecx
shr    $0x10,%eax
add    %ecx,%eax
movswl %ax,%edx
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x64,%r15d
cmp    $0x119,%ebx
jb     1150 <main+0x30>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Fahrenheit-Celsius\0A\00"
@.str.1 = [16 x i8] c" %d\09 %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%5 = load i32, i32* %2
br label %6
6: ; preds = %17, %0
%7 = load i32, i32* %2
%8 = icmp sle i32 %7, 300
br i1 %8, label %9, label %20
9: ; preds = %6
%10 = load i32, i32* %2
%11 = sub nsw i32 %10, 32
%12 = mul nsw i32 %11, 5
%13 = sdiv i32 %12, 9
store i32 %13, i32* %3
%14 = load i32, i32* %2
%15 = load i32, i32* %3
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %14, i32 %15)
br label %17
17: ; preds = %9
%18 = load i32, i32* %2
%19 = add nsw i32 %18, 20
store i32 %19, i32* %2
br label %6
20: ; preds = %6
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [16 x i8] c" %d\09 %d\0A\00"
@str = [19 x i8] c"Fahrenheit-Celsius\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 [ 0, %0 ], [ %10, %2 ]
%4 = trunc i32 %3 to i16
%5 = mul nuw nsw i16 %4, 5
%6 = add nsw i16 %5, -160
%7 = sdiv i16 %6, 9
%8 = sext i16 %7 to i32
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %3, i32 %8)
%10 = add nuw nsw i32 %3, 20
%11 = icmp ult i32 %3, 281
br i1 %11, label %2, label %12
12: ; preds = %2
ret i32 0
}