#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 argc, char *argv[]) {
  float f = 0.0f;
  float c = 0.0f;
  float L = 0.0f;
  float U = 300.0f;
  float dT = 20.0f;
  printf("%3s %6s\n", "F^o", "C^o");
  for (f = U; f >= L; f -= dT) {
    c = (5.0f / 9.0f) * (f - 32.0f);
    printf("%3.0f %6.1f\n", f, c);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x14(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x18(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x1c(%rbp)
movss  0xebe(%rip),%xmm0
movss  %xmm0,-0x20(%rbp)
movss  0xead(%rip),%xmm0
movss  %xmm0,-0x24(%rbp)
lea    0xeb1(%rip),%rdi
lea    0xeb3(%rip),%rsi
lea    0xeb0(%rip),%rdx
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x20(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
ucomiss -0x1c(%rbp),%xmm0
jb     11e7 <main+0xd7>
movss  -0x14(%rbp),%xmm1
movss  0xe72(%rip),%xmm0
subss  %xmm0,%xmm1
movss  0xe62(%rip),%xmm0
mulss  %xmm1,%xmm0
movss  %xmm0,-0x18(%rbp)
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x18(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe59(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0x24(%rbp),%xmm1
movss  -0x14(%rbp),%xmm0
subss  %xmm1,%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    117e <main+0x6e>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xfe0(%rip),%rdi
lea    0xfe2(%rip),%rsi
lea    0xfdf(%rip),%rdx
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xfd5(%rip),%rbx
movsd  0xec4(%rip),%xmm0
movsd  0xec4(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xeba(%rip),%xmm0
movsd  0xeba(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xeb0(%rip),%xmm0
movsd  0xeb0(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xea6(%rip),%xmm0
movsd  0xea6(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe9c(%rip),%xmm0
movsd  0xe9c(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe92(%rip),%xmm0
movsd  0xe92(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe88(%rip),%xmm0
movsd  0xe88(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe7e(%rip),%xmm0
movsd  0xe7e(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe74(%rip),%xmm0
movsd  0xe74(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe6a(%rip),%xmm0
movsd  0xe6a(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe60(%rip),%xmm0
movsd  0xe60(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe56(%rip),%xmm0
movsd  0xe56(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe4c(%rip),%xmm0
movsd  0xe4c(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe42(%rip),%xmm0
movsd  0xe42(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe38(%rip),%xmm0
movsd  0xe38(%rip),%xmm1
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movsd  0xe2e(%rip),%xmm1
xorps  %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [9 x i8] c"%3s %6s\0A\00"
@.str.1 = [4 x i8] c"F^o\00"
@.str.2 = [4 x i8] c"C^o\00"
@.str.3 = [13 x i8] c"%3.0f %6.1f\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca float
%7 = alloca float
%8 = alloca float
%9 = alloca float
%10 = alloca float
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store float 0.000000e+00, float* %6
store float 0.000000e+00, float* %7
store float 0.000000e+00, float* %8
store float 3.000000e+02, float* %9
store float 2.000000e+01, float* %10
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%12 = load float, float* %9
store float %12, float* %6
br label %13
13: ; preds = %26, %2
%14 = load float, float* %6
%15 = load float, float* %8
%16 = fcmp oge float %14, %15
br i1 %16, label %17, label %30
17: ; preds = %13
%18 = load float, float* %6
%19 = fsub float %18, 3.200000e+01
%20 = fmul float 0x3FE1C71C80000000, %19
store float %20, float* %7
%21 = load float, float* %6
%22 = fpext float %21 to double
%23 = load float, float* %7
%24 = fpext float %23 to double
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double %22, double %24)
br label %26
26: ; preds = %17
%27 = load float, float* %10
%28 = load float, float* %6
%29 = fsub float %28, %27
store float %29, float* %6
br label %13
30: ; preds = %13
ret i32 0
}

LLVM IR (-O2):
@.str = [9 x i8] c"%3s %6s\0A\00"
@.str.1 = [4 x i8] c"F^o\00"
@.str.2 = [4 x i8] c"C^o\00"
@.str.3 = [13 x i8] c"%3.0f %6.1f\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 3.000000e+02, double 0x40629C71E0000000)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.800000e+02, double 0x406138E3A0000000)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.600000e+02, double 0x405FAAAAC0000000)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.400000e+02, double 0x405CE38E40000000)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.200000e+02, double 0x405A1C71E0000000)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.000000e+02, double 0x4057555560000000)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 1.800000e+02, double 0x40548E3900000000)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 1.600000e+02, double 0x4051C71C80000000)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 1.400000e+02, double 0x404E000020000000)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 1.200000e+02, double 0x404871C740000000)
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 1.000000e+02, double 0x4042E38E40000000)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 8.000000e+01, double 0x403AAAAAC0000000)
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 6.000000e+01, double 0x402F1C71E0000000)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 4.000000e+01, double 0x4011C71C80000000)
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 2.000000e+01, double 0xC01AAAAAC0000000)
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), double 0.000000e+00, double 0xC031C71C80000000)
ret i32 0
}