#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 */
#define Z_DATA_ERROR 132
#define Z_ERRNO 131
#define Z_MEM_ERROR 130
#define Z_STREAM_ERROR 129
#define Z_VERSION_ERROR 128
int /*<<< orphan*/ sprintf(char *, char *, int);
const char *zlib_error2str(int error) {
  static char buf[64];
  switch (error) {
  case Z_ERRNO:
    return "Z_ERRNO";
    break;
  case Z_STREAM_ERROR:
    return "Z_STREAM_ERROR";
    break;
  case Z_DATA_ERROR:
    return "Z_DATA_ERROR";
    break;
  case Z_MEM_ERROR:
    return "Z_MEM_ERROR";
    break;
  case Z_VERSION_ERROR:
    return "Z_VERSION_ERROR";
    break;
  default:
    sprintf(buf, "%d", error);
    return buf;
    break;
  }
}


x86 assembly (clang, -O0):
<zlib_error2str>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffff80,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x4,%eax
ja     1194 <zlib_error2str+0x84>
mov    -0x18(%rbp),%rax
lea    0xec5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xec9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11b5 <zlib_error2str+0xa5>
lea    0xec1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11b5 <zlib_error2str+0xa5>
lea    0xec0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11b5 <zlib_error2str+0xa5>
lea    0xebd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11b5 <zlib_error2str+0xa5>
lea    0xeb9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11b5 <zlib_error2str+0xa5>
mov    -0xc(%rbp),%edx
lea    0x2ea2(%rip),%rdi
lea    0xeaf(%rip),%rsi
call   1030 <sprintf@plt>
lea    0x2e8f(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<zlib_error2str>:
push   %rbx
mov    %edi,%edx
lea    -0x80(%rdx),%eax
cmp    $0x5,%eax
jae    112d <zlib_error2str+0x1d>
cltq
lea    0xf20(%rip),%rcx
movslq (%rcx,%rax,4),%rbx
add    %rcx,%rbx
jmp    1143 <zlib_error2str+0x33>
lea    0x2f0c(%rip),%rbx
lea    0xf05(%rip),%rsi
mov    %rbx,%rdi
call   1030 <sprintf@plt>
mov    %rbx,%rax
pop    %rbx
ret

LLVM IR (-O0):
@zlib_error2str.buf = internal global [64 x i8] zeroinitializer
@.str = [8 x i8] c"Z_ERRNO\00"
@.str.1 = [15 x i8] c"Z_STREAM_ERROR\00"
@.str.2 = [13 x i8] c"Z_DATA_ERROR\00"
@.str.3 = [12 x i8] c"Z_MEM_ERROR\00"
@.str.4 = [16 x i8] c"Z_VERSION_ERROR\00"
@.str.5 = [3 x i8] c"%d\00"
define i8* @zlib_error2str(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %10 [
i32 131, label %5
i32 129, label %6
i32 132, label %7
i32 130, label %8
i32 128, label %9
]
5: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8** %2
br label %13
6: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %13
7: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %13
8: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %13
9: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %13
10: ; preds = %1
%11 = load i32, i32* %3
%12 = call i32 @sprintf(i8* getelementptr inbounds ([64 x i8], [64 x i8]* @zlib_error2str.buf, i64 0, i64 0), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i32 %11)
store i8* getelementptr inbounds ([64 x i8], [64 x i8]* @zlib_error2str.buf, i64 0, i64 0), i8** %2
br label %13
13: ; preds = %10, %9, %8, %7, %6, %5
%14 = load i8*, i8** %2
ret i8* %14
}

LLVM IR (-O2):
@zlib_error2str.buf = internal global [64 x i8] zeroinitializer
@.str = [8 x i8] c"Z_ERRNO\00"
@.str.1 = [15 x i8] c"Z_STREAM_ERROR\00"
@.str.2 = [13 x i8] c"Z_DATA_ERROR\00"
@.str.3 = [12 x i8] c"Z_MEM_ERROR\00"
@.str.4 = [16 x i8] c"Z_VERSION_ERROR\00"
@.str.5 = [3 x i8] c"%d\00"
@reltable.zlib_error2str = [5 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.4 to i64), i64 ptrtoint ([5 x i32]* @reltable.zlib_error2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([15 x i8]* @.str.1 to i64), i64 ptrtoint ([5 x i32]* @reltable.zlib_error2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([12 x i8]* @.str.3 to i64), i64 ptrtoint ([5 x i32]* @reltable.zlib_error2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str to i64), i64 ptrtoint ([5 x i32]* @reltable.zlib_error2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.2 to i64), i64 ptrtoint ([5 x i32]* @reltable.zlib_error2str to i64)) to i32)]
define i8* @zlib_error2str(i32 %0) {
%2 = add i32 %0, -128
%3 = icmp ult i32 %2, 5
br i1 %3, label %6, label %4
4: ; preds = %1
%5 = tail call i32 @sprintf(i8* dereferenceable(1) getelementptr inbounds ([64 x i8], [64 x i8]* @zlib_error2str.buf, i64 0, i64 0), i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i32 %0)
br label %10
6: ; preds = %1
%7 = sext i32 %2 to i64
%8 = shl i64 %7, 2
%9 = call i8* @llvm.load.relative.i64(i8* bitcast ([5 x i32]* @reltable.zlib_error2str to i8*), i64 %8)
br label %10
10: ; preds = %6, %4
%11 = phi i8* [ getelementptr inbounds ([64 x i8], [64 x i8]* @zlib_error2str.buf, i64 0, i64 0), %4 ], [ %9, %6 ]
ret i8* %11
}