#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, double);
double to_celsius(int);
int main() {
  for (int f = 300; f >= 0; f -= 20) {
    printf("%3d\t%3.1f\n", f, to_celsius(f));
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x12c,-0x8(%rbp)
cmpl   $0x0,-0x8(%rbp)
jl     116b <main+0x4b>
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edi
call   1040 <to_celsius@plt>
mov    -0xc(%rbp),%esi
lea    0xea8(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
sub    $0x14,%eax
mov    %eax,-0x8(%rbp)
jmp    1136 <main+0x16>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    $0x12c,%edi
call   1040 <to_celsius@plt>
lea    0xece(%rip),%rbx
mov    %rbx,%rdi
mov    $0x12c,%esi
call   1030 <printf@plt>
mov    $0x118,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x118,%esi
call   1030 <printf@plt>
mov    $0x104,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x104,%esi
call   1030 <printf@plt>
mov    $0xf0,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0xf0,%esi
call   1030 <printf@plt>
mov    $0xdc,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0xdc,%esi
call   1030 <printf@plt>
mov    $0xc8,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0xc8,%esi
call   1030 <printf@plt>
mov    $0xb4,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0xb4,%esi
call   1030 <printf@plt>
mov    $0xa0,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0xa0,%esi
call   1030 <printf@plt>
mov    $0x8c,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x8c,%esi
call   1030 <printf@plt>
mov    $0x78,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x78,%esi
call   1030 <printf@plt>
mov    $0x64,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x64,%esi
call   1030 <printf@plt>
mov    $0x50,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x50,%esi
call   1030 <printf@plt>
mov    $0x3c,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x3c,%esi
call   1030 <printf@plt>
mov    $0x28,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x28,%esi
call   1030 <printf@plt>
mov    $0x14,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
mov    $0x14,%esi
call   1030 <printf@plt>
xor    %edi,%edi
call   1040 <to_celsius@plt>
mov    %rbx,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [11 x i8] c"%3d\09%3.1f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 300, i32* %2
br label %3
3: ; preds = %11, %0
%4 = load i32, i32* %2
%5 = icmp sge i32 %4, 0
br i1 %5, label %6, label %14
6: ; preds = %3
%7 = load i32, i32* %2
%8 = load i32, i32* %2
%9 = call double @to_celsius(i32 %8)
%10 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 %7, double %9)
br label %11
11: ; preds = %6
%12 = load i32, i32* %2
%13 = sub nsw i32 %12, 20
store i32 %13, i32* %2
br label %3
14: ; preds = %3
ret i32 0
}

LLVM IR (-O2):
@.str = [11 x i8] c"%3d\09%3.1f\0A\00"
define i32 @main() {
%1 = tail call double @to_celsius(i32 300)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 300, double %1)
%3 = tail call double @to_celsius(i32 280)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 280, double %3)
%5 = tail call double @to_celsius(i32 260)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 260, double %5)
%7 = tail call double @to_celsius(i32 240)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 240, double %7)
%9 = tail call double @to_celsius(i32 220)
%10 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 220, double %9)
%11 = tail call double @to_celsius(i32 200)
%12 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 200, double %11)
%13 = tail call double @to_celsius(i32 180)
%14 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 180, double %13)
%15 = tail call double @to_celsius(i32 160)
%16 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 160, double %15)
%17 = tail call double @to_celsius(i32 140)
%18 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 140, double %17)
%19 = tail call double @to_celsius(i32 120)
%20 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 120, double %19)
%21 = tail call double @to_celsius(i32 100)
%22 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 100, double %21)
%23 = tail call double @to_celsius(i32 80)
%24 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 80, double %23)
%25 = tail call double @to_celsius(i32 60)
%26 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 60, double %25)
%27 = tail call double @to_celsius(i32 40)
%28 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 40, double %27)
%29 = tail call double @to_celsius(i32 20)
%30 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 20, double %29)
%31 = tail call double @to_celsius(i32 0)
%32 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 0, double %31)
ret i32 0
}