#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*/ abort();
int /*<<< orphan*/ acc_copyin(unsigned char *, int const);
int /*<<< orphan*/ acc_copyout(unsigned char *, int const);
int /*<<< orphan*/ free(unsigned char *);
scalar_t__ malloc(int const);
int /*<<< orphan*/ memset(unsigned char *, int /*<<< orphan*/, int const);
int main(int argc, char **argv) {
  const int N = 256;
  int i;
  unsigned char *h;
  h = (unsigned char *)malloc(N);
  for (i = 0; i < N; i++) {
    h[i] = i;
  }
  (void)acc_copyin(h, N);
  memset(h, 0, N);
  acc_copyout(h, N);
  for (i = 0; i < N; i++) {
    if (h[i] != i)
      abort();
  }
  free(h);
  return 0;
}


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)
movl   $0x100,-0x14(%rbp)
mov    $0x100,%edi
call   1070 <malloc@plt>
mov    %rax,-0x20(%rbp)
movl   $0x0,-0x18(%rbp)
cmpl   $0x100,-0x18(%rbp)
jge    11bd <main+0x5d>
mov    -0x18(%rbp),%eax
mov    %al,%dl
mov    -0x20(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    %dl,(%rax,%rcx,1)
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    1192 <main+0x32>
mov    -0x20(%rbp),%rdi
mov    $0x100,%esi
call   1050 <acc_copyin@plt>
mov    -0x20(%rbp),%rdi
xor    %esi,%esi
mov    $0x100,%edx
call   1060 <memset@plt>
mov    -0x20(%rbp),%rdi
mov    $0x100,%esi
call   1080 <acc_copyout@plt>
movl   $0x0,-0x18(%rbp)
cmpl   $0x100,-0x18(%rbp)
jge    122c <main+0xcc>
mov    -0x20(%rbp),%rax
movslq -0x18(%rbp),%rcx
movzbl (%rax,%rcx,1),%eax
cmp    -0x18(%rbp),%eax
je     1219 <main+0xb9>
mov    $0x0,%al
call   1040 <abort@plt>
jmp    121e <main+0xbe>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    11f0 <main+0x90>
mov    -0x20(%rbp),%rdi
call   1030 <free@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
mov    $0x100,%edi
call   1070 <malloc@plt>
mov    %rax,%r14
movaps 0xe88(%rip),%xmm0
movups %xmm0,(%rax)
movaps 0xe8e(%rip),%xmm0
movups %xmm0,0x10(%rax)
movaps 0xe93(%rip),%xmm0
movups %xmm0,0x20(%rax)
movaps 0xe98(%rip),%xmm0
movups %xmm0,0x30(%rax)
movaps 0xe9d(%rip),%xmm0
movups %xmm0,0x40(%rax)
movaps 0xea2(%rip),%xmm0
movups %xmm0,0x50(%rax)
movaps 0xea7(%rip),%xmm0
movups %xmm0,0x60(%rax)
movaps 0xeac(%rip),%xmm0
movups %xmm0,0x70(%rax)
movaps 0xeb1(%rip),%xmm0
movups %xmm0,0x80(%rax)
movaps 0xeb3(%rip),%xmm0
movups %xmm0,0x90(%rax)
movaps 0xeb5(%rip),%xmm0
movups %xmm0,0xa0(%rax)
movaps 0xeb7(%rip),%xmm0
movups %xmm0,0xb0(%rax)
movaps 0xeb9(%rip),%xmm0
movups %xmm0,0xc0(%rax)
movaps 0xebb(%rip),%xmm0
movups %xmm0,0xd0(%rax)
movaps 0xebd(%rip),%xmm0
movups %xmm0,0xe0(%rax)
movaps 0xebf(%rip),%xmm0
movups %xmm0,0xf0(%rax)
mov    %rax,%rdi
mov    $0x100,%esi
call   1050 <acc_copyin@plt>
xor    %ebx,%ebx
mov    %r14,%rdi
xor    %esi,%esi
mov    $0x100,%edx
call   1060 <memset@plt>
mov    %r14,%rdi
mov    $0x100,%esi
call   1080 <acc_copyout@plt>
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
movzbl (%r14,%rbx,1),%eax
cmp    %rax,%rbx
jne    12c8 <main+0x168>
movzbl 0x1(%r14,%rbx,1),%ecx
lea    0x1(%rbx),%rax
cmp    %rcx,%rax
jne    12c8 <main+0x168>
movzbl 0x2(%r14,%rbx,1),%ecx
add    $0x1,%rax
cmp    %rcx,%rax
jne    12c8 <main+0x168>
movzbl 0x3(%r14,%rbx,1),%ecx
add    $0x1,%rax
cmp    %rcx,%rax
jne    12c8 <main+0x168>
add    $0x1,%rax
mov    %rax,%rbx
cmp    $0x100,%rax
jne    1270 <main+0x110>
mov    %r14,%rdi
call   1030 <free@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret
xor    %eax,%eax
call   1040 <abort@plt>

LLVM IR (-O0):
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 256, i32* %6
%9 = call i64 @malloc(i32 256)
%10 = inttoptr i64 %9 to i8*
store i8* %10, i8** %8
store i32 0, i32* %7
br label %11
11: ; preds = %21, %2
%12 = load i32, i32* %7
%13 = icmp slt i32 %12, 256
br i1 %13, label %14, label %24
14: ; preds = %11
%15 = load i32, i32* %7
%16 = trunc i32 %15 to i8
%17 = load i8*, i8** %8
%18 = load i32, i32* %7
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i8, i8* %17, i64 %19
store i8 %16, i8* %20
br label %21
21: ; preds = %14
%22 = load i32, i32* %7
%23 = add nsw i32 %22, 1
store i32 %23, i32* %7
br label %11
24: ; preds = %11
%25 = load i8*, i8** %8
%26 = call i32 @acc_copyin(i8* %25, i32 256)
%27 = load i8*, i8** %8
%28 = call i32 @memset(i8* %27, i32 0, i32 256)
%29 = load i8*, i8** %8
%30 = call i32 @acc_copyout(i8* %29, i32 256)
store i32 0, i32* %7
br label %31
31: ; preds = %46, %24
%32 = load i32, i32* %7
%33 = icmp slt i32 %32, 256
br i1 %33, label %34, label %49
34: ; preds = %31
%35 = load i8*, i8** %8
%36 = load i32, i32* %7
%37 = sext i32 %36 to i64
%38 = getelementptr inbounds i8, i8* %35, i64 %37
%39 = load i8, i8* %38
%40 = zext i8 %39 to i32
%41 = load i32, i32* %7
%42 = icmp ne i32 %40, %41
br i1 %42, label %43, label %45
43: ; preds = %34
%44 = call i32 (...) @abort()
unreachable
45: ; preds = %34
br label %46
46: ; preds = %45
%47 = load i32, i32* %7
%48 = add nsw i32 %47, 1
store i32 %48, i32* %7
br label %31
49: ; preds = %31
%50 = load i8*, i8** %8
%51 = call i32 @free(i8* %50)
ret i32 0
}

LLVM IR (-O2):
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i64 @malloc(i32 256)
%4 = inttoptr i64 %3 to i8*
%5 = inttoptr i64 %3 to <16 x i8>*
store <16 x i8> <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15>, <16 x i8>* %5
%6 = getelementptr inbounds i8, i8* %4, i64 16
%7 = bitcast i8* %6 to <16 x i8>*
store <16 x i8> <i8 16, i8 17, i8 18, i8 19, i8 20, i8 21, i8 22, i8 23, i8 24, i8 25, i8 26, i8 27, i8 28, i8 29, i8 30, i8 31>, <16 x i8>* %7
%8 = getelementptr inbounds i8, i8* %4, i64 32
%9 = bitcast i8* %8 to <16 x i8>*
store <16 x i8> <i8 32, i8 33, i8 34, i8 35, i8 36, i8 37, i8 38, i8 39, i8 40, i8 41, i8 42, i8 43, i8 44, i8 45, i8 46, i8 47>, <16 x i8>* %9
%10 = getelementptr inbounds i8, i8* %4, i64 48
%11 = bitcast i8* %10 to <16 x i8>*
store <16 x i8> <i8 48, i8 49, i8 50, i8 51, i8 52, i8 53, i8 54, i8 55, i8 56, i8 57, i8 58, i8 59, i8 60, i8 61, i8 62, i8 63>, <16 x i8>* %11
%12 = getelementptr inbounds i8, i8* %4, i64 64
%13 = bitcast i8* %12 to <16 x i8>*
store <16 x i8> <i8 64, i8 65, i8 66, i8 67, i8 68, i8 69, i8 70, i8 71, i8 72, i8 73, i8 74, i8 75, i8 76, i8 77, i8 78, i8 79>, <16 x i8>* %13
%14 = getelementptr inbounds i8, i8* %4, i64 80
%15 = bitcast i8* %14 to <16 x i8>*
store <16 x i8> <i8 80, i8 81, i8 82, i8 83, i8 84, i8 85, i8 86, i8 87, i8 88, i8 89, i8 90, i8 91, i8 92, i8 93, i8 94, i8 95>, <16 x i8>* %15
%16 = getelementptr inbounds i8, i8* %4, i64 96
%17 = bitcast i8* %16 to <16 x i8>*
store <16 x i8> <i8 96, i8 97, i8 98, i8 99, i8 100, i8 101, i8 102, i8 103, i8 104, i8 105, i8 106, i8 107, i8 108, i8 109, i8 110, i8 111>, <16 x i8>* %17
%18 = getelementptr inbounds i8, i8* %4, i64 112
%19 = bitcast i8* %18 to <16 x i8>*
store <16 x i8> <i8 112, i8 113, i8 114, i8 115, i8 116, i8 117, i8 118, i8 119, i8 120, i8 121, i8 122, i8 123, i8 124, i8 125, i8 126, i8 127>, <16 x i8>* %19
%20 = getelementptr inbounds i8, i8* %4, i64 128
%21 = bitcast i8* %20 to <16 x i8>*
store <16 x i8> <i8 -128, i8 -127, i8 -126, i8 -125, i8 -124, i8 -123, i8 -122, i8 -121, i8 -120, i8 -119, i8 -118, i8 -117, i8 -116, i8 -115, i8 -114, i8 -113>, <16 x i8>* %21
%22 = getelementptr inbounds i8, i8* %4, i64 144
%23 = bitcast i8* %22 to <16 x i8>*
store <16 x i8> <i8 -112, i8 -111, i8 -110, i8 -109, i8 -108, i8 -107, i8 -106, i8 -105, i8 -104, i8 -103, i8 -102, i8 -101, i8 -100, i8 -99, i8 -98, i8 -97>, <16 x i8>* %23
%24 = getelementptr inbounds i8, i8* %4, i64 160
%25 = bitcast i8* %24 to <16 x i8>*
store <16 x i8> <i8 -96, i8 -95, i8 -94, i8 -93, i8 -92, i8 -91, i8 -90, i8 -89, i8 -88, i8 -87, i8 -86, i8 -85, i8 -84, i8 -83, i8 -82, i8 -81>, <16 x i8>* %25
%26 = getelementptr inbounds i8, i8* %4, i64 176
%27 = bitcast i8* %26 to <16 x i8>*
store <16 x i8> <i8 -80, i8 -79, i8 -78, i8 -77, i8 -76, i8 -75, i8 -74, i8 -73, i8 -72, i8 -71, i8 -70, i8 -69, i8 -68, i8 -67, i8 -66, i8 -65>, <16 x i8>* %27
%28 = getelementptr inbounds i8, i8* %4, i64 192
%29 = bitcast i8* %28 to <16 x i8>*
store <16 x i8> <i8 -64, i8 -63, i8 -62, i8 -61, i8 -60, i8 -59, i8 -58, i8 -57, i8 -56, i8 -55, i8 -54, i8 -53, i8 -52, i8 -51, i8 -50, i8 -49>, <16 x i8>* %29
%30 = getelementptr inbounds i8, i8* %4, i64 208
%31 = bitcast i8* %30 to <16 x i8>*
store <16 x i8> <i8 -48, i8 -47, i8 -46, i8 -45, i8 -44, i8 -43, i8 -42, i8 -41, i8 -40, i8 -39, i8 -38, i8 -37, i8 -36, i8 -35, i8 -34, i8 -33>, <16 x i8>* %31
%32 = getelementptr inbounds i8, i8* %4, i64 224
%33 = bitcast i8* %32 to <16 x i8>*
store <16 x i8> <i8 -32, i8 -31, i8 -30, i8 -29, i8 -28, i8 -27, i8 -26, i8 -25, i8 -24, i8 -23, i8 -22, i8 -21, i8 -20, i8 -19, i8 -18, i8 -17>, <16 x i8>* %33
%34 = getelementptr inbounds i8, i8* %4, i64 240
%35 = bitcast i8* %34 to <16 x i8>*
store <16 x i8> <i8 -16, i8 -15, i8 -14, i8 -13, i8 -12, i8 -11, i8 -10, i8 -9, i8 -8, i8 -7, i8 -6, i8 -5, i8 -4, i8 -3, i8 -2, i8 -1>, <16 x i8>* %35
%36 = tail call i32 @acc_copyin(i8* %4, i32 256)
%37 = tail call i32 @memset(i8* %4, i32 0, i32 256)
%38 = tail call i32 @acc_copyout(i8* %4, i32 256)
br label %60
39: ; preds = %60
%40 = or i64 %61, 1
%41 = getelementptr inbounds i8, i8* %4, i64 %40
%42 = load i8, i8* %41
%43 = zext i8 %42 to i64
%44 = icmp eq i64 %40, %43
br i1 %44, label %45, label %66
45: ; preds = %39
%46 = or i64 %61, 2
%47 = getelementptr inbounds i8, i8* %4, i64 %46
%48 = load i8, i8* %47
%49 = zext i8 %48 to i64
%50 = icmp eq i64 %46, %49
br i1 %50, label %51, label %66
51: ; preds = %45
%52 = or i64 %61, 3
%53 = getelementptr inbounds i8, i8* %4, i64 %52
%54 = load i8, i8* %53
%55 = zext i8 %54 to i64
%56 = icmp eq i64 %52, %55
br i1 %56, label %57, label %66
57: ; preds = %51
%58 = add nuw nsw i64 %61, 4
%59 = icmp eq i64 %58, 256
br i1 %59, label %68, label %60
60: ; preds = %57, %2
%61 = phi i64 [ 0, %2 ], [ %58, %57 ]
%62 = getelementptr inbounds i8, i8* %4, i64 %61
%63 = load i8, i8* %62
%64 = zext i8 %63 to i64
%65 = icmp eq i64 %61, %64
br i1 %65, label %39, label %66
66: ; preds = %51, %45, %39, %60
%67 = tail call i32 (...) @abort()
unreachable
68: ; preds = %57
%69 = tail call i32 @free(i8* %4)
ret i32 0
}