#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 /*<<< orphan*/ scanf(char *, int *);
int main(int argc, const char *argv[]) {
  int inicio, fim, soma;
  soma = 0;
  printf("Escreva o primeiro numero:  ");
  scanf("%d", &inicio);
  printf("Escreva o segundo numero:   ");
  scanf("%d", &fim);
  for (inicio++; inicio < fim; inicio++) {
    soma += inicio;
  }
  printf("Soma do intervalo:  %d ", soma);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
movl   $0x0,-0x1c(%rbp)
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecb(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xebe(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xead(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x18(%rbp),%eax
jge    11a5 <main+0x85>
mov    -0x14(%rbp),%eax
add    -0x1c(%rbp),%eax
mov    %eax,-0x1c(%rbp)
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1182 <main+0x62>
mov    -0x1c(%rbp),%esi
lea    0xe8e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee3(%rip),%rbx
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xed2(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    0x8(%rsp),%esi
mov    0xc(%rsp),%eax
lea    0x1(%rsi),%ecx
cmp    %ecx,%eax
cmovle %ecx,%eax
mov    %eax,%edx
sub    %esi,%edx
not    %esi
add    %eax,%esi
add    $0xfffffffe,%edx
imul   %rsi,%rdx
shr    %rdx
imul   %ecx,%esi
add    %edx,%esi
mov    %eax,0x8(%rsp)
lea    0xea9(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [29 x i8] c"Escreva o primeiro numero: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"Escreva o segundo numero: \00"
@.str.3 = [24 x i8] c"Soma do intervalo: %d \00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %8
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %6)
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0))
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%13 = load i32, i32* %6
%14 = add nsw i32 %13, 1
store i32 %14, i32* %6
br label %15
15: ; preds = %23, %2
%16 = load i32, i32* %6
%17 = load i32, i32* %7
%18 = icmp slt i32 %16, %17
br i1 %18, label %19, label %26
19: ; preds = %15
%20 = load i32, i32* %6
%21 = load i32, i32* %8
%22 = add nsw i32 %21, %20
store i32 %22, i32* %8
br label %23
23: ; preds = %19
%24 = load i32, i32* %6
%25 = add nsw i32 %24, 1
store i32 %25, i32* %6
br label %15
26: ; preds = %15
%27 = load i32, i32* %8
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0), i32 %27)
ret i32 0
}

LLVM IR (-O2):
@.str = [29 x i8] c"Escreva o primeiro numero: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"Escreva o segundo numero: \00"
@.str.3 = [24 x i8] c"Soma do intervalo: %d \00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = alloca i32
%5 = bitcast i32* %3 to i8*
%6 = bitcast i32* %4 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %4)
%11 = load i32, i32* %3
%12 = load i32, i32* %4
%13 = add i32 %11, 1
%14 = call i32 @llvm.smax.i32(i32 %12, i32 %13)
%15 = xor i32 %11, -1
%16 = add i32 %14, %15
%17 = zext i32 %16 to i33
%18 = add i32 %14, -2
%19 = sub i32 %18, %11
%20 = zext i32 %19 to i33
%21 = mul i33 %17, %20
%22 = lshr i33 %21, 1
%23 = trunc i33 %22 to i32
%24 = mul i32 %16, %13
%25 = add i32 %24, %23
store i32 %14, i32* %3
%26 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0), i32 %25)
ret i32 0
}