#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(void) {
  printf("\nstringtointeger started\n\n");
  int strToInt(const char string[]);
  printf("%i\n", strToInt("245"));
  printf("%i\n", strToInt("100") + 25);
  printf("%i\n", strToInt("13x5"));
  printf("\nstringtointeger ended\n\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xedb(%rip),%rdi
call   1030 <strToInt@plt>
mov    %eax,%esi
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec3(%rip),%rdi
call   1030 <strToInt@plt>
mov    %eax,%esi
add    $0x19,%esi
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xea8(%rip),%rdi
call   1030 <strToInt@plt>
mov    %eax,%esi
lea    0xe8e(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe91(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xed9(%rip),%rdi
call   1030 <puts@plt>
lea    0xec0(%rip),%rdi
call   1040 <strToInt@plt>
lea    0xeb0(%rip),%rbx
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xea5(%rip),%rdi
call   1040 <strToInt@plt>
lea    0x19(%rax),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xe90(%rip),%rdi
call   1040 <strToInt@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xe97(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [27 x i8] c"\0Astringtointeger started\0A\0A\00"
@.str.1 = [4 x i8] c"%i\0A\00"
@.str.2 = [4 x i8] c"245\00"
@.str.3 = [4 x i8] c"100\00"
@.str.4 = [5 x i8] c"13x5\00"
@.str.5 = [25 x i8] c"\0Astringtointeger ended\0A\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @strToInt(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = call i32 @strToInt(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%6 = add nsw i32 %5, 25
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %6)
%8 = call i32 @strToInt(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.5, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%i\0A\00"
@.str.2 = [4 x i8] c"245\00"
@.str.3 = [4 x i8] c"100\00"
@.str.4 = [5 x i8] c"13x5\00"
@str = [26 x i8] c"\0Astringtointeger started\0A\00"
@str.6 = [24 x i8] c"\0Astringtointeger ended\0A\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @strToInt(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %2)
%4 = tail call i32 @strToInt(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%5 = add nsw i32 %4, 25
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = tail call i32 @strToInt(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0))
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %7)
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.6, i64 0, i64 0))
ret i32 0
}