#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 /*<<< orphan*/ printf(char *, char *);
char *suffixname(char *);
int main(int argc, char **argv) {
  if (argc != 2) {
    printf("Usage: %s path_name\n", argv[0]);
    printf("Usage: %s /tmp/test.log\n", argv[0]);
    return -1;
  }
  printf("%s\n", suffixname(argv[1]));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     1172 <main+0x52>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xeb2(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xeb4(%rip),%rdi
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    1195 <main+0x75>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1040 <suffixname@plt>
mov    %rax,%rsi
lea    0xea5(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %rsi,%rbx
cmp    $0x2,%edi
jne    1145 <main+0x25>
mov    0x8(%rbx),%rdi
call   1040 <suffixname@plt>
lea    0xef5(%rip),%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    (%rbx),%rsi
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
mov    (%rbx),%rsi
lea    0xeb7(%rip),%rdi
call   1030 <printf@plt>
mov    $0xffffffff,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [21 x i8] c"Usage: %s path_name\0A\00"
@.str.1 = [25 x i8] c"Usage: %s /tmp/test.log\0A\00"
@.str.2 = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp ne i32 %6, 2
br i1 %7, label %8, label %17
8: ; preds = %2
%9 = load i8**, i8*** %5
%10 = getelementptr inbounds i8*, i8** %9, i64 0
%11 = load i8*, i8** %10
%12 = call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0), i8* %11)
%13 = load i8**, i8*** %5
%14 = getelementptr inbounds i8*, i8** %13, i64 0
%15 = load i8*, i8** %14
%16 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), i8* %15)
store i32 -1, i32* %3
br label %23
17: ; preds = %2
%18 = load i8**, i8*** %5
%19 = getelementptr inbounds i8*, i8** %18, i64 1
%20 = load i8*, i8** %19
%21 = call i8* @suffixname(i8* %20)
%22 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8* %21)
store i32 0, i32* %3
br label %23
23: ; preds = %17, %8
%24 = load i32, i32* %3
ret i32 %24
}

LLVM IR (-O2):
@.str = [21 x i8] c"Usage: %s path_name\0A\00"
@.str.1 = [25 x i8] c"Usage: %s /tmp/test.log\0A\00"
@.str.2 = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = load i8*, i8** %1
%8 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), i8* %7)
br label %14
9: ; preds = %2
%10 = getelementptr inbounds i8*, i8** %1, i64 1
%11 = load i8*, i8** %10
%12 = tail call i8* @suffixname(i8* %11)
%13 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8* %12)
br label %14
14: ; preds = %9, %4
%15 = phi i32 [ -1, %4 ], [ 0, %9 ]
ret i32 %15
}