#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 */
scalar_t__ strcmp(char const *, char const *);
unsigned int strlen(char const *);
int ends_in(const char *name, const char *ext) {
  unsigned int namelen, extlen;
  namelen = strlen(name);
  extlen = strlen(ext);
  if (namelen < extlen)
    return 0;
  if ((strcmp((name + namelen - extlen), (ext)) == 0))
    return 1;
  return 0;
}


x86 assembly (clang, -O0):
<ends_in>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
call   1030 <strlen@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x18(%rbp),%rdi
call   1030 <strlen@plt>
mov    %eax,-0x20(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x20(%rbp),%eax
jae    1160 <ends_in+0x40>
movl   $0x0,-0x4(%rbp)
jmp    119d <ends_in+0x7d>
mov    -0x10(%rbp),%rdi
mov    -0x1c(%rbp),%eax
add    %rax,%rdi
mov    -0x20(%rbp),%eax
mov    %eax,%ecx
xor    %eax,%eax
sub    %rcx,%rax
add    %rax,%rdi
mov    -0x18(%rbp),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    1196 <ends_in+0x76>
movl   $0x1,-0x4(%rbp)
jmp    119d <ends_in+0x7d>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<ends_in>:
push   %rbp
push   %r14
push   %rbx
mov    %rsi,%r14
mov    %rdi,%rbx
call   1030 <strlen@plt>
mov    %eax,%ebp
mov    %r14,%rdi
call   1030 <strlen@plt>
mov    %eax,%ecx
xor    %eax,%eax
cmp    %ecx,%ebp
jb     1161 <ends_in+0x41>
mov    %ebp,%eax
add    %rax,%rbx
mov    %ecx,%eax
sub    %rax,%rbx
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <strcmp@plt>
mov    %rax,%rcx
xor    %eax,%eax
test   %rcx,%rcx
sete   %al
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
define i32 @ends_in(i8* %0, i8* %1) {
%3 = alloca i32
%4 = alloca i8*
%5 = alloca i8*
%6 = alloca i32
%7 = alloca i32
store i8* %0, i8** %4
store i8* %1, i8** %5
%8 = load i8*, i8** %4
%9 = call i32 @strlen(i8* %8)
store i32 %9, i32* %6
%10 = load i8*, i8** %5
%11 = call i32 @strlen(i8* %10)
store i32 %11, i32* %7
%12 = load i32, i32* %6
%13 = load i32, i32* %7
%14 = icmp ult i32 %12, %13
br i1 %14, label %15, label %16
15: ; preds = %2
store i32 0, i32* %3
br label %30
16: ; preds = %2
%17 = load i8*, i8** %4
%18 = load i32, i32* %6
%19 = zext i32 %18 to i64
%20 = getelementptr inbounds i8, i8* %17, i64 %19
%21 = load i32, i32* %7
%22 = zext i32 %21 to i64
%23 = sub i64 0, %22
%24 = getelementptr inbounds i8, i8* %20, i64 %23
%25 = load i8*, i8** %5
%26 = call i64 @strcmp(i8* %24, i8* %25)
%27 = icmp eq i64 %26, 0
br i1 %27, label %28, label %29
28: ; preds = %16
store i32 1, i32* %3
br label %30
29: ; preds = %16
store i32 0, i32* %3
br label %30
30: ; preds = %29, %28, %15
%31 = load i32, i32* %3
ret i32 %31
}

LLVM IR (-O2):
define i32 @ends_in(i8* %0, i8* %1) {
%3 = tail call i32 @strlen(i8* %0)
%4 = tail call i32 @strlen(i8* %1)
%5 = icmp ult i32 %3, %4
br i1 %5, label %15, label %6
6: ; preds = %2
%7 = zext i32 %3 to i64
%8 = getelementptr inbounds i8, i8* %0, i64 %7
%9 = zext i32 %4 to i64
%10 = sub nsw i64 0, %9
%11 = getelementptr inbounds i8, i8* %8, i64 %10
%12 = tail call i64 @strcmp(i8* %11, i8* %1)
%13 = icmp eq i64 %12, 0
%14 = zext i1 %13 to i32
br label %15
15: ; preds = %6, %2
%16 = phi i32 [ 0, %2 ], [ %14, %6 ]
ret i32 %16
}