#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 fahr, celsius;
  int lower, upper, step;
  lower = 0;
  upper = 300;
  step = 20;
  celsius = upper;
  printf("Таблица перевода из fahr в cels\n");
  while (celsius >= lower) {
    fahr = (9.0 / 5.0) * celsius + 32.0;
    printf("cels: %7.3f\tfahr: %7.3f\n", celsius, fahr);
    celsius -= step;
  }
}


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)
movl   $0x0,-0x1c(%rbp)
movl   $0x12c,-0x20(%rbp)
movl   $0x14,-0x24(%rbp)
cvtsi2ssl -0x20(%rbp),%xmm0
movss  %xmm0,-0x18(%rbp)
lea    0xec4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x18(%rbp),%xmm0
cvtsi2ssl -0x1c(%rbp),%xmm1
ucomiss %xmm1,%xmm0
jb     11c8 <main+0xb8>
movss  -0x18(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movsd  0xe89(%rip),%xmm1
mulsd  %xmm1,%xmm0
movsd  0xe85(%rip),%xmm1
addsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x18(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x14(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe9a(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
cvtsi2ssl -0x24(%rbp),%xmm1
movss  -0x18(%rbp),%xmm0
subss  %xmm1,%xmm0
movss  %xmm0,-0x18(%rbp)
jmp    1153 <main+0x43>
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xfe1(%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),%xmm0
mov    %rbx,%rdi
movsd  0xe01(%rip),%xmm1
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 = [51 x i8] c"\D0\A2\D0\B0\D0\B1\D0\BB\D0\B8\D1\86\D0\B0 \D0\BF\D0\B5\D1\80\D0\B5\D0\B2\D0\BE\D0\B4\D0\B0 \D0\B8\D0\B7 fahr \D0\B2 cels\0A\00"
@.str.1 = [25 x i8] c"cels: %7.3f\09fahr: %7.3f\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 i32
%9 = alloca i32
%10 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %8
store i32 300, i32* %9
store i32 20, i32* %10
%11 = load i32, i32* %9
%12 = sitofp i32 %11 to float
store float %12, float* %7
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0))
br label %14
14: ; preds = %19, %2
%15 = load float, float* %7
%16 = load i32, i32* %8
%17 = sitofp i32 %16 to float
%18 = fcmp oge float %15, %17
br i1 %18, label %19, label %33
19: ; preds = %14
%20 = load float, float* %7
%21 = fpext float %20 to double
%22 = call double @llvm.fmuladd.f64(double 1.800000e+00, double %21, double 3.200000e+01)
%23 = fptrunc double %22 to float
store float %23, float* %6
%24 = load float, float* %7
%25 = fpext float %24 to double
%26 = load float, float* %6
%27 = fpext float %26 to double
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double %25, double %27)
%29 = load i32, i32* %10
%30 = sitofp i32 %29 to float
%31 = load float, float* %7
%32 = fsub float %31, %30
store float %32, float* %7
br label %14
33: ; preds = %14
%34 = load i32, i32* %3
ret i32 %34
}

LLVM IR (-O2):
@.str.1 = [25 x i8] c"cels: %7.3f\09fahr: %7.3f\0A\00"
@str = [50 x i8] c"\D0\A2\D0\B0\D0\B1\D0\BB\D0\B8\D1\86\D0\B0 \D0\BF\D0\B5\D1\80\D0\B5\D0\B2\D0\BE\D0\B4\D0\B0 \D0\B8\D0\B7 fahr \D0\B2 cels\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 3.000000e+02, double 5.720000e+02)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.800000e+02, double 5.360000e+02)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.600000e+02, double 5.000000e+02)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.400000e+02, double 4.640000e+02)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.200000e+02, double 4.280000e+02)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.000000e+02, double 3.920000e+02)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 1.800000e+02, double 3.560000e+02)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 1.600000e+02, double 3.200000e+02)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 1.400000e+02, double 2.840000e+02)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 1.200000e+02, double 2.480000e+02)
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 1.000000e+02, double 2.120000e+02)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 8.000000e+01, double 1.760000e+02)
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 6.000000e+01, double 1.400000e+02)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 4.000000e+01, double 1.040000e+02)
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 2.000000e+01, double 6.800000e+01)
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), double 0.000000e+00, double 3.200000e+01)
ret i32 0
}