#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 */
scalar_t__ S_ISFIFO(int /*<<< orphan*/);
scalar_t__ S_ISLNK(int /*<<< orphan*/);
scalar_t__ stat(char *, struct stat *);
int isfifo(char *path) {
  int retval = 0;
  struct stat st;
  if (stat(path, &st) == 0) {
    retval = (S_ISFIFO(st.st_mode) || S_ISLNK(st.st_mode));
  }
  return (retval);
}


x86 assembly (clang, -O0):
<isfifo>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
mov    -0x8(%rbp),%rdi
lea    -0x10(%rbp),%rsi
call   1050 <stat@plt>
cmp    $0x0,%rax
jne    1191 <isfifo+0x61>
mov    -0x10(%rbp),%edi
call   1040 <S_ISFIFO@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x11(%rbp)
jne    1186 <isfifo+0x56>
mov    -0x10(%rbp),%edi
call   1030 <S_ISLNK@plt>
cmp    $0x0,%rax
setne  %al
mov    %al,-0x11(%rbp)
mov    -0x11(%rbp),%al
and    $0x1,%al
movzbl %al,%eax
mov    %eax,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<isfifo>:
push   %rax
mov    %rsp,%rsi
call   1050 <stat@plt>
mov    %rax,%rcx
xor    %eax,%eax
test   %rcx,%rcx
je     1145 <isfifo+0x15>
pop    %rcx
ret
mov    (%rsp),%edi
call   1040 <S_ISFIFO@plt>
mov    %rax,%rcx
mov    $0x1,%eax
test   %rcx,%rcx
jne    1143 <isfifo+0x13>
mov    (%rsp),%edi
call   1030 <S_ISLNK@plt>
mov    %rax,%rcx
xor    %eax,%eax
test   %rcx,%rcx
setne  %al
pop    %rcx
ret

LLVM IR (-O0):
%struct.stat = type { i32 }
define i32 @isfifo(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
%4 = alloca %struct.stat
store i8* %0, i8** %2
store i32 0, i32* %3
%5 = load i8*, i8** %2
%6 = call i64 @stat(i8* %5, %struct.stat* %4)
%7 = icmp eq i64 %6, 0
br i1 %7, label %8, label %21
8: ; preds = %1
%9 = getelementptr inbounds %struct.stat, %struct.stat* %4, i32 0, i32 0
%10 = load i32, i32* %9
%11 = call i64 @S_ISFIFO(i32 %10)
%12 = icmp ne i64 %11, 0
br i1 %12, label %18, label %13
13: ; preds = %8
%14 = getelementptr inbounds %struct.stat, %struct.stat* %4, i32 0, i32 0
%15 = load i32, i32* %14
%16 = call i64 @S_ISLNK(i32 %15)
%17 = icmp ne i64 %16, 0
br label %18
18: ; preds = %13, %8
%19 = phi i1 [ true, %8 ], [ %17, %13 ]
%20 = zext i1 %19 to i32
store i32 %20, i32* %3
br label %21
21: ; preds = %18, %1
%22 = load i32, i32* %3
ret i32 %22
}

LLVM IR (-O2):
%struct.stat = type { i32 }
define i32 @isfifo(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 %6, label %16
6: ; preds = %1
%7 = getelementptr inbounds %struct.stat, %struct.stat* %2, i64 0, i32 0
%8 = load i32, i32* %7
%9 = call i64 @S_ISFIFO(i32 %8)
%10 = icmp eq i64 %9, 0
br i1 %10, label %11, label %16
11: ; preds = %6
%12 = load i32, i32* %7
%13 = call i64 @S_ISLNK(i32 %12)
%14 = icmp ne i64 %13, 0
%15 = zext i1 %14 to i32
br label %16
16: ; preds = %6, %11, %1
%17 = phi i32 [ 0, %1 ], [ 1, %6 ], [ %15, %11 ]
ret i32 %17
}