#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;
  lower = 0;
  upper = 300;
  step = 20;
  printf("\n");
  printf("+----------------+\n");
  printf("| temp conv tab  |\n");
  printf("+----------------+\n");
  printf("| fhr --| cls ---|\n");
  printf("+----------------+\n");
  fahr = lower;
  while (fahr <= upper) {
    celsius = (5.0 / 9.0) * (fahr - 32.0);
    printf("| %3.0f\t| %6.1f |\n", fahr, celsius);
    fahr = fahr + step;
  }
  printf("+----------------+\n");
  printf("\n");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x10(%rbp)
movss  0xed5(%rip),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  0xec4(%rip),%xmm0
movss  %xmm0,-0x18(%rbp)
lea    0xee2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xea6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm1
movss  -0x14(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jb     1210 <main+0x100>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xe4d(%rip),%xmm0
subsd  %xmm0,%xmm1
movsd  0xe39(%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    0xe5f(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0x8(%rbp),%xmm0
addss  -0x18(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
jmp    119f <main+0x8f>
lea    0xe01(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe05(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xfe4(%rip),%r14
mov    %r14,%rdi
call   1040 <puts@plt>
lea    0xfaf(%rip),%rdi
call   1040 <puts@plt>
mov    %r14,%rdi
call   1040 <puts@plt>
lea    0xfae(%rip),%rdi
call   1040 <puts@plt>
mov    %r14,%rdi
call   1040 <puts@plt>
lea    0xf74(%rip),%rbx
movsd  0xe7c(%rip),%xmm1
xorps  %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe6f(%rip),%xmm0
movsd  0xe6f(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe65(%rip),%xmm0
movsd  0xe65(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe5b(%rip),%xmm0
movsd  0xe5b(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe51(%rip),%xmm0
movsd  0xe51(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe47(%rip),%xmm0
movsd  0xe47(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe3d(%rip),%xmm0
movsd  0xe3d(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe33(%rip),%xmm0
mov    %rbx,%rdi
movsd  0xde8(%rip),%xmm1
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe21(%rip),%xmm0
movsd  0xe21(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe17(%rip),%xmm0
movsd  0xe17(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe0d(%rip),%xmm0
movsd  0xe0d(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xe03(%rip),%xmm0
movsd  0xe03(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xdf9(%rip),%xmm0
movsd  0xdf9(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xdef(%rip),%xmm0
movsd  0xdef(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xde5(%rip),%xmm0
movsd  0xde5(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
movsd  0xddb(%rip),%xmm0
movsd  0xddb(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1050 <printf@plt>
mov    %r14,%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [20 x i8] c"+----------------+\0A\00"
@.str.2 = [20 x i8] c"| temp conv tab |\0A\00"
@.str.3 = [20 x i8] c"| fhr --| cls ---|\0A\00"
@.str.4 = [19 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
store float 0.000000e+00, float* %4
store float 3.000000e+02, float* %5
store float 2.000000e+01, float* %6
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%13 = load float, float* %4
store float %13, float* %2
br label %14
14: ; preds = %18, %0
%15 = load float, float* %2
%16 = load float, float* %5
%17 = fcmp ole float %15, %16
br i1 %17, label %18, label %32
18: ; preds = %14
%19 = load float, float* %2
%20 = fpext float %19 to double
%21 = fsub double %20, 3.200000e+01
%22 = fmul double 0x3FE1C71C71C71C72, %21
%23 = fptrunc double %22 to float
store float %23, float* %3
%24 = load float, float* %2
%25 = fpext float %24 to double
%26 = load float, float* %3
%27 = fpext float %26 to double
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double %25, double %27)
%29 = load float, float* %2
%30 = load float, float* %6
%31 = fadd float %29, %30
store float %31, float* %2
br label %14
32: ; preds = %14
%33 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%34 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%35 = load i32, i32* %1
ret i32 %35
}

LLVM IR (-O2):
@.str.4 = [19 x i8] c"| %3.0f\09| %6.1f |\0A\00"
@str.5 = [19 x i8] c"| temp conv tab |\00"
@str.7 = [19 x i8] c"| fhr --| cls ---|\00"
@str.9 = [19 x i8] c"+----------------+\00"
define i32 @main() {
%1 = tail call i32 @putchar(i32 10)
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.9, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.5, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.9, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.7, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.9, i64 0, i64 0))
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 0.000000e+00, double 0xC031C71C80000000)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.000000e+01, double 0xC01AAAAAA0000000)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 4.000000e+01, double 0x4011C71C80000000)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 6.000000e+01, double 0x402F1C71C0000000)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 8.000000e+01, double 0x403AAAAAA0000000)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 1.000000e+02, double 0x4042E38E40000000)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 1.200000e+02, double 0x404871C720000000)
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 1.400000e+02, double 6.000000e+01)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 1.600000e+02, double 0x4051C71C80000000)
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 1.800000e+02, double 0x40548E38E0000000)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.000000e+02, double 0x4057555560000000)
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.200000e+02, double 0x405A1C71C0000000)
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.400000e+02, double 0x405CE38E40000000)
%20 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.600000e+02, double 0x405FAAAAA0000000)
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 2.800000e+02, double 0x406138E380000000)
%22 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), double 3.000000e+02, double 0x40629C71C0000000)
%23 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.9, i64 0, i64 0))
%24 = tail call i32 @putchar(i32 10)
ret i32 0
}