#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*/ test_case(char *);
int main(int argc, char **argv) {
  test_case("");
  test_case("aa");
  test_case("aaaaaaaaaaaaaaaaa");
  test_case("ab");
  test_case("abc");
  test_case("aba");
  test_case("abca");
  test_case("abcd abcd abdc");
  test_case("123456789");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xf0d(%rip),%rdi
call   1030 <test_case@plt>
lea    0xed6(%rip),%rdi
call   1030 <test_case@plt>
lea    0xebb(%rip),%rdi
call   1030 <test_case@plt>
lea    0xec1(%rip),%rdi
call   1030 <test_case@plt>
lea    0xeb8(%rip),%rdi
call   1030 <test_case@plt>
lea    0xeb0(%rip),%rdi
call   1030 <test_case@plt>
lea    0xea8(%rip),%rdi
call   1030 <test_case@plt>
lea    0xea1(%rip),%rdi
call   1030 <test_case@plt>
lea    0xea4(%rip),%rdi
call   1030 <test_case@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xf22(%rip),%rdi
call   1030 <test_case@plt>
lea    0xeeb(%rip),%rdi
call   1030 <test_case@plt>
lea    0xed0(%rip),%rdi
call   1030 <test_case@plt>
lea    0xed6(%rip),%rdi
call   1030 <test_case@plt>
lea    0xecd(%rip),%rdi
call   1030 <test_case@plt>
lea    0xec5(%rip),%rdi
call   1030 <test_case@plt>
lea    0xebd(%rip),%rdi
call   1030 <test_case@plt>
lea    0xeb6(%rip),%rdi
call   1030 <test_case@plt>
lea    0xeb9(%rip),%rdi
call   1030 <test_case@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [1 x i8] zeroinitializer
@.str.1 = [3 x i8] c"aa\00"
@.str.2 = [18 x i8] c"aaaaaaaaaaaaaaaaa\00"
@.str.3 = [3 x i8] c"ab\00"
@.str.4 = [4 x i8] c"abc\00"
@.str.5 = [4 x i8] c"aba\00"
@.str.6 = [5 x i8] c"abca\00"
@.str.7 = [15 x i8] c"abcd abcd abdc\00"
@.str.8 = [10 x i8] c"123456789\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = call i32 @test_case(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @test_case(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @test_case(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @test_case(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
%10 = call i32 @test_case(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
%11 = call i32 @test_case(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%12 = call i32 @test_case(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0))
%13 = call i32 @test_case(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.7, i64 0, i64 0))
%14 = call i32 @test_case(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.8, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [1 x i8] zeroinitializer
@.str.1 = [3 x i8] c"aa\00"
@.str.2 = [18 x i8] c"aaaaaaaaaaaaaaaaa\00"
@.str.3 = [3 x i8] c"ab\00"
@.str.4 = [4 x i8] c"abc\00"
@.str.5 = [4 x i8] c"aba\00"
@.str.6 = [5 x i8] c"abca\00"
@.str.7 = [15 x i8] c"abcd abcd abdc\00"
@.str.8 = [10 x i8] c"123456789\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 @test_case(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%4 = tail call i32 @test_case(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%5 = tail call i32 @test_case(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
%6 = tail call i32 @test_case(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
%7 = tail call i32 @test_case(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
%8 = tail call i32 @test_case(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%9 = tail call i32 @test_case(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0))
%10 = tail call i32 @test_case(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.7, i64 0, i64 0))
%11 = tail call i32 @test_case(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.8, i64 0, i64 0))
ret i32 0
}