#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 */
char *MDFile(char *);
int /*<<< orphan*/ printf(char *, char *, ...);
int main(int argc, char *argv[]) {
  char *ret;
  if (argc < 2) {
    printf("usage: %s file\n", argv[0]);
    return (1);
  }
  if ((ret = MDFile(argv[1])) != NULL) {
    printf("md5sum(%s) == %s\n", argv[1], ret);
  } else
    return (1);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    1161 <main+0x41>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xeb2(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11a2 <main+0x82>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1030 <MDFile@plt>
mov    %rax,-0x18(%rbp)
cmp    $0x0,%rax
je     119b <main+0x7b>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rsi
mov    -0x18(%rbp),%rdx
lea    0xe81(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
jmp    11a2 <main+0x82>
movl   $0x1,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %rsi,%rbx
cmp    $0x1,%edi
jg     113c <main+0x1c>
mov    (%rbx),%rsi
lea    0xecd(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
jmp    1163 <main+0x43>
mov    0x8(%rbx),%rdi
call   1030 <MDFile@plt>
test   %rax,%rax
je     1163 <main+0x43>
mov    0x8(%rbx),%rsi
lea    0xebb(%rip),%rdi
xor    %ebx,%ebx
mov    %rax,%rdx
xor    %eax,%eax
call   1040 <printf@plt>
jmp    1168 <main+0x48>
mov    $0x1,%ebx
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"usage: %s file\0A\00"
@.str.1 = [18 x i8] c"md5sum(%s) == %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp slt i32 %7, 2
br i1 %8, label %9, label %14
9: ; preds = %2
%10 = load i8**, i8*** %5
%11 = getelementptr inbounds i8*, i8** %10, i64 0
%12 = load i8*, i8** %11
%13 = call i32 (i8*, i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i8* %12)
store i32 1, i32* %3
br label %27
14: ; preds = %2
%15 = load i8**, i8*** %5
%16 = getelementptr inbounds i8*, i8** %15, i64 1
%17 = load i8*, i8** %16
%18 = call i8* @MDFile(i8* %17)
store i8* %18, i8** %6
%19 = icmp ne i8* %18, null
br i1 %19, label %20, label %26
20: ; preds = %14
%21 = load i8**, i8*** %5
%22 = getelementptr inbounds i8*, i8** %21, i64 1
%23 = load i8*, i8** %22
%24 = load i8*, i8** %6
%25 = call i32 (i8*, i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.1, i64 0, i64 0), i8* %23, i8* %24)
br label %27
26: ; preds = %14
store i32 1, i32* %3
br label %27
27: ; preds = %9, %26, %20
%28 = load i32, i32* %3
ret i32 %28
}

LLVM IR (-O2):
@.str = [16 x i8] c"usage: %s file\0A\00"
@.str.1 = [18 x i8] c"md5sum(%s) == %s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %7
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 (i8*, i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i8* %5)
br label %15
7: ; preds = %2
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = tail call i8* @MDFile(i8* %9)
%11 = icmp eq i8* %10, null
br i1 %11, label %15, label %12
12: ; preds = %7
%13 = load i8*, i8** %8
%14 = tail call i32 (i8*, i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.1, i64 0, i64 0), i8* %13, i8* %10)
br label %15
15: ; preds = %7, %12, %4
%16 = phi i32 [ 1, %4 ], [ 0, %12 ], [ 1, %7 ]
ret i32 %16
}