#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 *, char const *);
int main() {
  const char c = 'a';
  char const c2 = 'a';
  char *const str = "hello";
  printf("%s\n", str);
  char const *str2 = "hello";
  str2++;
  printf("%s\n", str2);
  const char *str3 = "hello";
  str3++;
  printf("%s\n", str3);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movb   $0x61,-0x5(%rbp)
movb   $0x61,-0x6(%rbp)
lea    0xed2(%rip),%rax
mov    %rax,-0x10(%rbp)
lea    0xecd(%rip),%rdi
lea    0xec0(%rip),%rsi
call   1030 <printf@plt>
lea    0xeb4(%rip),%rax
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rsi
lea    0xe9f(%rip),%rdi
call   1030 <printf@plt>
lea    0xe8d(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rsi
lea    0xe78(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xeeb(%rip),%rbx
lea    0xede(%rip),%rsi
mov    %rbx,%rdi
call   1030 <printf@plt>
lea    0xed0(%rip),%r14
mov    %rbx,%rdi
mov    %r14,%rsi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [6 x i8] c"hello\00"
@.str.1 = [4 x i8] c"%s\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8
%3 = alloca i8
%4 = alloca i8*
%5 = alloca i8*
%6 = alloca i8*
store i32 0, i32* %1
store i8 97, i8* %2
store i8 97, i8* %3
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %4
%7 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i32 0, i32 0))
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %5
%8 = load i8*, i8** %5
%9 = getelementptr inbounds i8, i8* %8, i32 1
store i8* %9, i8** %5
%10 = load i8*, i8** %5
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %10)
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %6
%12 = load i8*, i8** %6
%13 = getelementptr inbounds i8, i8* %12, i32 1
store i8* %13, i8** %6
%14 = load i8*, i8** %6
%15 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %14)
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"hello\00"
@.str.1 = [4 x i8] c"%s\0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 1))
%3 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 1))
ret i32 0
}