#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__ strcasecmp(char const *, char const *);
scalar_t__ strlen(char const *);
int has_ext(const char *name, const char *ext) {
  if (strlen(name) < strlen(ext))
    return 0;
  name += strlen(name) - strlen(ext);
  return strcasecmp(name, ext) ? 0 : 1;
}


x86 assembly (clang, -O0):
<has_ext>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
call   1040 <strlen@plt>
mov    %rax,-0x20(%rbp)
mov    -0x18(%rbp),%rdi
call   1040 <strlen@plt>
mov    %rax,%rcx
mov    -0x20(%rbp),%rax
cmp    %rcx,%rax
jge    1162 <has_ext+0x42>
movl   $0x0,-0x4(%rbp)
jmp    11ab <has_ext+0x8b>
mov    -0x10(%rbp),%rdi
call   1040 <strlen@plt>
mov    %rax,-0x28(%rbp)
mov    -0x18(%rbp),%rdi
call   1040 <strlen@plt>
mov    %rax,%rcx
mov    -0x28(%rbp),%rax
sub    %rcx,%rax
add    -0x10(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
mov    -0x18(%rbp),%rsi
call   1030 <strcasecmp@plt>
mov    %rax,%rdx
mov    $0x1,%eax
xor    %ecx,%ecx
cmp    $0x0,%rdx
cmovne %ecx,%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<has_ext>:
push   %r15
push   %r14
push   %rbx
mov    %rsi,%r14
mov    %rdi,%r15
call   1040 <strlen@plt>
mov    %rax,%rbx
mov    %r14,%rdi
call   1040 <strlen@plt>
mov    %rax,%rcx
xor    %eax,%eax
sub    %rcx,%rbx
jl     115e <has_ext+0x3e>
add    %rbx,%r15
mov    %r15,%rdi
mov    %r14,%rsi
call   1030 <strcasecmp@plt>
mov    %rax,%rcx
xor    %eax,%eax
test   %rcx,%rcx
sete   %al
pop    %rbx
pop    %r14
pop    %r15
ret

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

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