#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 */
struct stat {
  int /*<<< orphan*/ st_mode;
};

/* Variables and functions */
int /*<<< orphan*/ S_ISREG(int /*<<< orphan*/);
int /*<<< orphan*/ X_OK;
scalar_t__ access(char const *, int /*<<< orphan*/);
scalar_t__ stat(char const *, struct stat *);
int /*<<< orphan*/ warn(char const *);
int is_executable(const char *path) {
  struct stat stbuf;
  if (stat(path, &stbuf)) {
    warn(path);
    return 0;
  }
  if (!S_ISREG(stbuf.st_mode)) {
    return 0;
  }
  if (access(path, X_OK)) {
    return 0;
  }
  return 1;
}


x86 assembly (clang, -O0):
<is_executable>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <stat@plt>
cmp    $0x0,%rax
je     1178 <is_executable+0x38>
mov    -0x10(%rbp),%rdi
call   1030 <warn@plt>
movl   $0x0,-0x4(%rbp)
jmp    11c4 <is_executable+0x84>
mov    -0x18(%rbp),%edi
call   1050 <S_ISREG@plt>
cmp    $0x0,%eax
jne    1195 <is_executable+0x55>
movl   $0x0,-0x4(%rbp)
jmp    11c4 <is_executable+0x84>
mov    -0x10(%rbp),%rdi
mov    0x2e48(%rip),%rax
mov    (%rax),%esi
call   1060 <access@plt>
cmp    $0x0,%rax
je     11bd <is_executable+0x7d>
movl   $0x0,-0x4(%rbp)
jmp    11c4 <is_executable+0x84>
movl   $0x1,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<is_executable>:
push   %rbx
sub    $0x10,%rsp
mov    %rdi,%rbx
lea    0x8(%rsp),%rsi
call   1040 <stat@plt>
test   %rax,%rax
je     1163 <is_executable+0x23>
mov    %rbx,%rdi
call   1030 <warn@plt>
xor    %eax,%eax
jmp    118c <is_executable+0x4c>
mov    0x8(%rsp),%edi
call   1050 <S_ISREG@plt>
test   %eax,%eax
je     115f <is_executable+0x1f>
mov    0x2e71(%rip),%rax
mov    (%rax),%esi
mov    %rbx,%rdi
call   1060 <access@plt>
mov    %rax,%rcx
xor    %eax,%eax
test   %rcx,%rcx
sete   %al
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
%struct.stat = type { i32 }
@X_OK = global i32 0
define i32 @is_executable(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca %struct.stat
store i8* %0, i8** %3
%5 = load i8*, i8** %3
%6 = call i64 @stat(i8* %5, %struct.stat* %4)
%7 = icmp ne i64 %6, 0
br i1 %7, label %8, label %11
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i32 @warn(i8* %9)
store i32 0, i32* %2
br label %24
11: ; preds = %1
%12 = getelementptr inbounds %struct.stat, %struct.stat* %4, i32 0, i32 0
%13 = load i32, i32* %12
%14 = call i32 @S_ISREG(i32 %13)
%15 = icmp ne i32 %14, 0
br i1 %15, label %17, label %16
16: ; preds = %11
store i32 0, i32* %2
br label %24
17: ; preds = %11
%18 = load i8*, i8** %3
%19 = load i32, i32* @X_OK
%20 = call i64 @access(i8* %18, i32 %19)
%21 = icmp ne i64 %20, 0
br i1 %21, label %22, label %23
22: ; preds = %17
store i32 0, i32* %2
br label %24
23: ; preds = %17
store i32 1, i32* %2
br label %24
24: ; preds = %23, %22, %16, %8
%25 = load i32, i32* %2
ret i32 %25
}

LLVM IR (-O2):
%struct.stat = type { i32 }
@X_OK = global i32 0
define i32 @is_executable(i8* %0) {
%2 = alloca %struct.stat
%3 = bitcast %struct.stat* %2 to i8*
%4 = call i64 @stat(i8* %0, %struct.stat* %2)
%5 = icmp eq i64 %4, 0
br i1 %5, label %8, label %6
6: ; preds = %1
%7 = call i32 @warn(i8* %0)
br label %18
8: ; preds = %1
%9 = getelementptr inbounds %struct.stat, %struct.stat* %2, i64 0, i32 0
%10 = load i32, i32* %9
%11 = call i32 @S_ISREG(i32 %10)
%12 = icmp eq i32 %11, 0
br i1 %12, label %18, label %13
13: ; preds = %8
%14 = load i32, i32* @X_OK
%15 = call i64 @access(i8* %0, i32 %14)
%16 = icmp eq i64 %15, 0
%17 = zext i1 %16 to i32
br label %18
18: ; preds = %13, %8, %6
%19 = phi i32 [ 0, %6 ], [ 0, %8 ], [ %17, %13 ]
ret i32 %19
}