#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 longestValidParentheses(char *);
int /*<<< orphan*/ printf(char *, int);
int main(void) {
  char *s1 = "(()";
  char *s2 = ")()())";
  char *s3 = "()(()";
  printf("result of s1 : %d\n", longestValidParentheses(s1));
  printf("result of s2 : %d\n", longestValidParentheses(s2));
  printf("result of s3 : %d\n", longestValidParentheses(s3));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xed3(%rip),%rax
mov    %rax,-0x10(%rbp)
lea    0xebf(%rip),%rax
mov    %rax,-0x18(%rbp)
lea    0xebb(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    -0x10(%rbp),%rdi
call   1040 <longestValidParentheses@plt>
mov    %eax,%esi
lea    0xeab(%rip),%rdi
call   1030 <printf@plt>
mov    -0x18(%rbp),%rdi
call   1040 <longestValidParentheses@plt>
mov    %eax,%esi
lea    0xea7(%rip),%rdi
call   1030 <printf@plt>
mov    -0x20(%rbp),%rdi
call   1040 <longestValidParentheses@plt>
mov    %eax,%esi
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee1(%rip),%rdi
call   1040 <longestValidParentheses@plt>
lea    0xed9(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xebe(%rip),%rdi
call   1040 <longestValidParentheses@plt>
lea    0xed2(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xeab(%rip),%rdi
call   1040 <longestValidParentheses@plt>
lea    0xecb(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"(()\00"
@.str.1 = [7 x i8] c")()())\00"
@.str.2 = [6 x i8] c"()(()\00"
@.str.3 = [19 x i8] c"result of s1 : %d\0A\00"
@.str.4 = [19 x i8] c"result of s2 : %d\0A\00"
@.str.5 = [19 x i8] c"result of s3 : %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8*
%3 = alloca i8*
%4 = alloca i8*
store i32 0, i32* %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8** %2
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8** %3
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8** %4
%5 = load i8*, i8** %2
%6 = call i32 @longestValidParentheses(i8* %5)
%7 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %6)
%8 = load i8*, i8** %3
%9 = call i32 @longestValidParentheses(i8* %8)
%10 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 %9)
%11 = load i8*, i8** %4
%12 = call i32 @longestValidParentheses(i8* %11)
%13 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.5, i64 0, i64 0), i32 %12)
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"(()\00"
@.str.1 = [7 x i8] c")()())\00"
@.str.2 = [6 x i8] c"()(()\00"
@.str.3 = [19 x i8] c"result of s1 : %d\0A\00"
@.str.4 = [19 x i8] c"result of s2 : %d\0A\00"
@.str.5 = [19 x i8] c"result of s3 : %d\0A\00"
define i32 @main() {
%1 = tail call i32 @longestValidParentheses(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %1)
%3 = tail call i32 @longestValidParentheses(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%4 = tail call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 %3)
%5 = tail call i32 @longestValidParentheses(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%6 = tail call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.5, i64 0, i64 0), i32 %5)
ret i32 0
}