#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*/ Parser_DisplayTagInfo(unsigned int, unsigned char);
int /*<<< orphan*/ Parser_TsPacketLog(unsigned int, char *, ...);
int x44_Tag_DescriptorParser(unsigned int type, unsigned char *buff) {
  if (NULL == buff) {
    return -1;
  }
  Parser_DisplayTagInfo(type, buff[0]);
  Parser_TsPacketLog(type, "Descriptor_length = 0x%x\n", buff[1]);
  Parser_TsPacketLog(type, "frequency = %x\n",
                     ((buff[2] & 0xFF) << 24) | ((buff[3] & 0xFF) << 16) |
                         ((buff[4] & 0xFF) << 8) | (buff[5] & 0xFF));
  Parser_TsPacketLog(type, "FEC_outer = 0x%x\n", buff[7] & 0x0F);
  Parser_TsPacketLog(type, "modulation = 0x%x\n", buff[8]);
  Parser_TsPacketLog(type, "symbol_rate = %x\n",
                     ((buff[9] & 0xFF) << 20) | ((buff[10] & 0xFF) << 12) |
                         ((buff[11] & 0xFF) << 4) | ((buff[12] & 0xF0) >> 4));
  Parser_TsPacketLog(type, "FEC_inner = 0x%x\n", buff[12] & 0x0F);
  Parser_TsPacketLog(type, "******END******\n");
  return buff[1];
}


x86 assembly (clang, -O0):
<x44_Tag_DescriptorParser>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
xor    %eax,%eax
cmp    -0x10(%rbp),%rax
jne    1147 <x44_Tag_DescriptorParser+0x27>
movl   $0xffffffff,-0x4(%rbp)
jmp    1289 <x44_Tag_DescriptorParser+0x169>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl (%rax),%esi
call   1040 <Parser_DisplayTagInfo@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0x1(%rax),%edx
lea    0xe98(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0x2(%rax),%edx
and    $0xff,%edx
shl    $0x18,%edx
mov    -0x10(%rbp),%rax
movzbl 0x3(%rax),%eax
and    $0xff,%eax
shl    $0x10,%eax
or     %eax,%edx
mov    -0x10(%rbp),%rax
movzbl 0x4(%rax),%eax
and    $0xff,%eax
shl    $0x8,%eax
or     %eax,%edx
mov    -0x10(%rbp),%rax
movzbl 0x5(%rax),%eax
and    $0xff,%eax
or     %eax,%edx
lea    0xe5d(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0x7(%rax),%edx
and    $0xf,%edx
lea    0xe51(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0x8(%rax),%edx
lea    0xe4a(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0x9(%rax),%edx
and    $0xff,%edx
shl    $0x14,%edx
mov    -0x10(%rbp),%rax
movzbl 0xa(%rax),%eax
and    $0xff,%eax
shl    $0xc,%eax
or     %eax,%edx
mov    -0x10(%rbp),%rax
movzbl 0xb(%rax),%eax
and    $0xff,%eax
shl    $0x4,%eax
or     %eax,%edx
mov    -0x10(%rbp),%rax
movzbl 0xc(%rax),%eax
and    $0xf0,%eax
sar    $0x4,%eax
or     %eax,%edx
lea    0xe05(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rax
movzbl 0xc(%rax),%edx
and    $0xf,%edx
lea    0xdfb(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x8(%rbp),%edi
lea    0xdfc(%rip),%rsi
mov    $0x0,%al
call   1030 <Parser_TsPacketLog@plt>
mov    -0x10(%rbp),%rax
movzbl 0x1(%rax),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<x44_Tag_DescriptorParser>:
test   %rsi,%rsi
je     11f1 <x44_Tag_DescriptorParser+0xd1>
push   %rbp
push   %rbx
push   %rax
mov    %rsi,%rbx
mov    %edi,%ebp
movzbl (%rsi),%esi
call   1040 <Parser_DisplayTagInfo@plt>
movzbl 0x1(%rbx),%edx
lea    0xebc(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
mov    0x2(%rbx),%edx
bswap  %edx
lea    0xec1(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
movzbl 0x7(%rbx),%edx
and    $0xf,%edx
lea    0xeba(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
movzbl 0x8(%rbx),%edx
lea    0xeb8(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
movzbl 0x9(%rbx),%eax
shl    $0x14,%eax
movzbl 0xa(%rbx),%ecx
shl    $0xc,%ecx
or     %eax,%ecx
movzbl 0xb(%rbx),%eax
shl    $0x4,%eax
or     %ecx,%eax
movzbl 0xc(%rbx),%edx
shr    $0x4,%edx
or     %eax,%edx
lea    0xe99(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
movzbl 0xc(%rbx),%edx
and    $0xf,%edx
lea    0xe94(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
lea    0xe96(%rip),%rsi
mov    %ebp,%edi
xor    %eax,%eax
call   1030 <Parser_TsPacketLog@plt>
movzbl 0x1(%rbx),%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret
mov    $0xffffffff,%eax
ret

LLVM IR (-O0):
@.str = [26 x i8] c"Descriptor_length = 0x%x\0A\00"
@.str.1 = [16 x i8] c"frequency = %x\0A\00"
@.str.2 = [18 x i8] c"FEC_outer = 0x%x\0A\00"
@.str.3 = [19 x i8] c"modulation = 0x%x\0A\00"
@.str.4 = [18 x i8] c"symbol_rate = %x\0A\00"
@.str.5 = [18 x i8] c"FEC_inner = 0x%x\0A\00"
@.str.6 = [17 x i8] c"******END******\0A\00"
define i32 @x44_Tag_DescriptorParser(i32 %0, i8* %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8*
store i32 %0, i32* %4
store i8* %1, i8** %5
%6 = load i8*, i8** %5
%7 = icmp eq i8* null, %6
br i1 %7, label %8, label %9
8: ; preds = %2
store i32 -1, i32* %3
br label %104
9: ; preds = %2
%10 = load i32, i32* %4
%11 = load i8*, i8** %5
%12 = getelementptr inbounds i8, i8* %11, i64 0
%13 = load i8, i8* %12
%14 = call i32 @Parser_DisplayTagInfo(i32 %10, i8 zeroext %13)
%15 = load i32, i32* %4
%16 = load i8*, i8** %5
%17 = getelementptr inbounds i8, i8* %16, i64 1
%18 = load i8, i8* %17
%19 = zext i8 %18 to i32
%20 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %15, i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0), i32 %19)
%21 = load i32, i32* %4
%22 = load i8*, i8** %5
%23 = getelementptr inbounds i8, i8* %22, i64 2
%24 = load i8, i8* %23
%25 = zext i8 %24 to i32
%26 = and i32 %25, 255
%27 = shl i32 %26, 24
%28 = load i8*, i8** %5
%29 = getelementptr inbounds i8, i8* %28, i64 3
%30 = load i8, i8* %29
%31 = zext i8 %30 to i32
%32 = and i32 %31, 255
%33 = shl i32 %32, 16
%34 = or i32 %27, %33
%35 = load i8*, i8** %5
%36 = getelementptr inbounds i8, i8* %35, i64 4
%37 = load i8, i8* %36
%38 = zext i8 %37 to i32
%39 = and i32 %38, 255
%40 = shl i32 %39, 8
%41 = or i32 %34, %40
%42 = load i8*, i8** %5
%43 = getelementptr inbounds i8, i8* %42, i64 5
%44 = load i8, i8* %43
%45 = zext i8 %44 to i32
%46 = and i32 %45, 255
%47 = or i32 %41, %46
%48 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %21, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %47)
%49 = load i32, i32* %4
%50 = load i8*, i8** %5
%51 = getelementptr inbounds i8, i8* %50, i64 7
%52 = load i8, i8* %51
%53 = zext i8 %52 to i32
%54 = and i32 %53, 15
%55 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %49, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 %54)
%56 = load i32, i32* %4
%57 = load i8*, i8** %5
%58 = getelementptr inbounds i8, i8* %57, i64 8
%59 = load i8, i8* %58
%60 = zext i8 %59 to i32
%61 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %56, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %60)
%62 = load i32, i32* %4
%63 = load i8*, i8** %5
%64 = getelementptr inbounds i8, i8* %63, i64 9
%65 = load i8, i8* %64
%66 = zext i8 %65 to i32
%67 = and i32 %66, 255
%68 = shl i32 %67, 20
%69 = load i8*, i8** %5
%70 = getelementptr inbounds i8, i8* %69, i64 10
%71 = load i8, i8* %70
%72 = zext i8 %71 to i32
%73 = and i32 %72, 255
%74 = shl i32 %73, 12
%75 = or i32 %68, %74
%76 = load i8*, i8** %5
%77 = getelementptr inbounds i8, i8* %76, i64 11
%78 = load i8, i8* %77
%79 = zext i8 %78 to i32
%80 = and i32 %79, 255
%81 = shl i32 %80, 4
%82 = or i32 %75, %81
%83 = load i8*, i8** %5
%84 = getelementptr inbounds i8, i8* %83, i64 12
%85 = load i8, i8* %84
%86 = zext i8 %85 to i32
%87 = and i32 %86, 240
%88 = ashr i32 %87, 4
%89 = or i32 %82, %88
%90 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %62, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %89)
%91 = load i32, i32* %4
%92 = load i8*, i8** %5
%93 = getelementptr inbounds i8, i8* %92, i64 12
%94 = load i8, i8* %93
%95 = zext i8 %94 to i32
%96 = and i32 %95, 15
%97 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %91, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.5, i64 0, i64 0), i32 %96)
%98 = load i32, i32* %4
%99 = call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %98, i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0))
%100 = load i8*, i8** %5
%101 = getelementptr inbounds i8, i8* %100, i64 1
%102 = load i8, i8* %101
%103 = zext i8 %102 to i32
store i32 %103, i32* %3
br label %104
104: ; preds = %9, %8
%105 = load i32, i32* %3
ret i32 %105
}

LLVM IR (-O2):
@.str = [26 x i8] c"Descriptor_length = 0x%x\0A\00"
@.str.1 = [16 x i8] c"frequency = %x\0A\00"
@.str.2 = [18 x i8] c"FEC_outer = 0x%x\0A\00"
@.str.3 = [19 x i8] c"modulation = 0x%x\0A\00"
@.str.4 = [18 x i8] c"symbol_rate = %x\0A\00"
@.str.5 = [18 x i8] c"FEC_inner = 0x%x\0A\00"
@.str.6 = [17 x i8] c"******END******\0A\00"
define i32 @x44_Tag_DescriptorParser(i32 %0, i8* %1) {
%3 = icmp eq i8* %1, null
br i1 %3, label %66, label %4
4: ; preds = %2
%5 = load i8, i8* %1
%6 = tail call i32 @Parser_DisplayTagInfo(i32 %0, i8 zeroext %5)
%7 = getelementptr inbounds i8, i8* %1, i64 1
%8 = load i8, i8* %7
%9 = zext i8 %8 to i32
%10 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0), i32 %9)
%11 = getelementptr inbounds i8, i8* %1, i64 2
%12 = load i8, i8* %11
%13 = zext i8 %12 to i32
%14 = shl nuw i32 %13, 24
%15 = getelementptr inbounds i8, i8* %1, i64 3
%16 = load i8, i8* %15
%17 = zext i8 %16 to i32
%18 = shl nuw nsw i32 %17, 16
%19 = or i32 %18, %14
%20 = getelementptr inbounds i8, i8* %1, i64 4
%21 = load i8, i8* %20
%22 = zext i8 %21 to i32
%23 = shl nuw nsw i32 %22, 8
%24 = or i32 %19, %23
%25 = getelementptr inbounds i8, i8* %1, i64 5
%26 = load i8, i8* %25
%27 = zext i8 %26 to i32
%28 = or i32 %24, %27
%29 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %28)
%30 = getelementptr inbounds i8, i8* %1, i64 7
%31 = load i8, i8* %30
%32 = and i8 %31, 15
%33 = zext i8 %32 to i32
%34 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 %33)
%35 = getelementptr inbounds i8, i8* %1, i64 8
%36 = load i8, i8* %35
%37 = zext i8 %36 to i32
%38 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %37)
%39 = getelementptr inbounds i8, i8* %1, i64 9
%40 = load i8, i8* %39
%41 = zext i8 %40 to i32
%42 = shl nuw nsw i32 %41, 20
%43 = getelementptr inbounds i8, i8* %1, i64 10
%44 = load i8, i8* %43
%45 = zext i8 %44 to i32
%46 = shl nuw nsw i32 %45, 12
%47 = or i32 %46, %42
%48 = getelementptr inbounds i8, i8* %1, i64 11
%49 = load i8, i8* %48
%50 = zext i8 %49 to i32
%51 = shl nuw nsw i32 %50, 4
%52 = or i32 %47, %51
%53 = getelementptr inbounds i8, i8* %1, i64 12
%54 = load i8, i8* %53
%55 = lshr i8 %54, 4
%56 = zext i8 %55 to i32
%57 = or i32 %52, %56
%58 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %57)
%59 = load i8, i8* %53
%60 = and i8 %59, 15
%61 = zext i8 %60 to i32
%62 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.5, i64 0, i64 0), i32 %61)
%63 = tail call i32 (i32, i8*, ...) @Parser_TsPacketLog(i32 %0, i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0))
%64 = load i8, i8* %7
%65 = zext i8 %64 to i32
br label %66
66: ; preds = %2, %4
%67 = phi i32 [ %65, %4 ], [ -1, %2 ]
ret i32 %67
}