#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 */
typedef int /*<<< orphan*/ str;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ strrepstr(char *, int, char *, char *);
int main(int argc, char **argv) {
  char str[256] = "hello 11 world 11 hello china";
  printf("[%s]\n\n", str);
  printf("%s =>", str);
  strrepstr(str, sizeof(str), "11", "#");
  printf(" %s\n", str);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x110,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    -0x110(%rbp),%rdi
lea    0xea9(%rip),%rsi
mov    $0x100,%edx
call   1050 <memcpy@plt>
lea    -0x110(%rbp),%rsi
lea    0xf91(%rip),%rdi
call   1040 <printf@plt>
lea    -0x110(%rbp),%rsi
lea    0xf85(%rip),%rdi
call   1040 <printf@plt>
lea    -0x110(%rbp),%rdi
mov    $0x100,%esi
lea    0xf73(%rip),%rdx
lea    0xf6f(%rip),%rcx
call   1030 <strrepstr@plt>
lea    -0x110(%rbp),%rsi
lea    0xf5e(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x110,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x100,%rsp
lea    0xec1(%rip),%rsi
mov    %rsp,%rbx
mov    $0x100,%edx
mov    %rbx,%rdi
call   1050 <memcpy@plt>
lea    0xfaa(%rip),%rdi
mov    %rbx,%rsi
call   1040 <printf@plt>
lea    0xfa2(%rip),%rdi
mov    %rbx,%rsi
call   1040 <printf@plt>
lea    0xf99(%rip),%rdx
lea    0xf95(%rip),%rcx
mov    %rbx,%rdi
mov    $0x100,%esi
call   1030 <strrepstr@plt>
lea    0xf83(%rip),%rdi
mov    %rbx,%rsi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x100,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.str = [256 x i8] c"hello 11 world 11 hello china\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"
@.str = [7 x i8] c"[%s]\0A\0A\00"
@.str.1 = [6 x i8] c"%s =>\00"
@.str.2 = [3 x i8] c"11\00"
@.str.3 = [2 x i8] c"#\00"
@.str.4 = [5 x i8] c" %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca [256 x i8]
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = bitcast [256 x i8]* %6 to i8*
%8 = getelementptr inbounds [256 x i8], [256 x i8]* %6, i64 0, i64 0
%9 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* %8)
%10 = getelementptr inbounds [256 x i8], [256 x i8]* %6, i64 0, i64 0
%11 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %10)
%12 = getelementptr inbounds [256 x i8], [256 x i8]* %6, i64 0, i64 0
%13 = call i32 @strrepstr(i8* %12, i32 256, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%14 = getelementptr inbounds [256 x i8], [256 x i8]* %6, i64 0, i64 0
%15 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i8* %14)
ret i32 0
}

LLVM IR (-O2):
@__const.main.str = [256 x i8] c"hello 11 world 11 hello china\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"
@.str = [7 x i8] c"[%s]\0A\0A\00"
@.str.1 = [6 x i8] c"%s =>\00"
@.str.2 = [3 x i8] c"11\00"
@.str.3 = [2 x i8] c"#\00"
@.str.4 = [5 x i8] c" %s\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca [256 x i8]
%4 = getelementptr inbounds [256 x i8], [256 x i8]* %3, i64 0, i64 0
%5 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%7 = call i32 @strrepstr(i8* %4, i32 256, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i8* %4)
ret i32 0
}