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Intrinsify Array GetArrayDataReference for SZ arrays #87374

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merged 12 commits into from
Jul 17, 2023
Merged

Intrinsify Array GetArrayDataReference for SZ arrays #87374

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70eb1ab
Intrinsify Array GetArrayDataReference for SZ arrays
MichalPetryka Jun 10, 2023
2822c52
Update importercalls.cpp
MichalPetryka Jun 11, 2023
a808e15
Update importercalls.cpp
MichalPetryka Jun 11, 2023
a4a646a
Update MemoryMarshalGetArrayDataReference.cs
MichalPetryka Jun 11, 2023
dafed47
Update importercalls.cpp
MichalPetryka Jun 11, 2023
b71b13f
Update importercalls.cpp
MichalPetryka Jun 11, 2023
7b9fa85
Update importercalls.cpp
MichalPetryka Jun 11, 2023
1ab8de8
Format code
MichalPetryka Jun 11, 2023
1e7d04d
Merge upstream
MichalPetryka Jun 11, 2023
dedef8e
Merge branch 'main' into gadr-md
MichalPetryka Jun 19, 2023
7458d72
Merge branch 'dotnet:main' into gadr-md
MichalPetryka Jun 28, 2023
4821284
Merge branch 'dotnet:main' into gadr-md
MichalPetryka Jun 30, 2023
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1 change: 1 addition & 0 deletions ...oreclr/System.Private.CoreLib/src/System/Runtime/InteropServices/MemoryMarshal.CoreCLR.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@ public static ref T GetArrayDataReference<T>(T[] array) =>
/// This technique does not perform array variance checks. The caller must manually perform any array variance checks
/// if the caller wishes to write to the returned reference.
/// </remarks>
[Intrinsic]
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ref byte GetArrayDataReference(Array array)
{
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33 changes: 26 additions & 7 deletions src/coreclr/jit/importercalls.cpp
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Expand Up @@ -2762,14 +2762,33 @@ GenTree* Compiler::impIntrinsic(GenTree* newobjThis,
case NI_System_Runtime_InteropService_MemoryMarshal_GetArrayDataReference:
{
assert(sig->numArgs == 1);
assert(sig->sigInst.methInstCount == 1);

GenTree* array = impPopStack().val;
CORINFO_CLASS_HANDLE elemHnd = sig->sigInst.methInst[0];
CorInfoType jitType = info.compCompHnd->asCorInfoType(elemHnd);
var_types elemType = JITtype2varType(jitType);
GenTree* array = impStackTop().val;
bool notNull = false;
CORINFO_CLASS_HANDLE elemHnd = NO_CLASS_HANDLE;
CorInfoType jitType;
if (sig->sigInst.methInstCount == 1)
{
elemHnd = sig->sigInst.methInst[0];
jitType = info.compCompHnd->asCorInfoType(elemHnd);
}
else
{
bool isExact = false;
CORINFO_CLASS_HANDLE arrayHnd = gtGetClassHandle(array, &isExact, &notNull);
if ((arrayHnd == NO_CLASS_HANDLE) || !info.compCompHnd->isSDArray(arrayHnd))
{
return nullptr;
}
jitType = info.compCompHnd->getChildType(arrayHnd, &elemHnd);
}

array = impPopStack().val;

assert(jitType != CORINFO_TYPE_UNDEF);
assert((jitType != CORINFO_TYPE_VALUECLASS) || (elemHnd != NO_CLASS_HANDLE));

if (fgAddrCouldBeNull(array))
if (!notNull && fgAddrCouldBeNull(array))
{
GenTree* arrayClone;
array = impCloneExpr(array, &arrayClone, CHECK_SPILL_ALL,
Expand All @@ -2780,7 +2799,7 @@ GenTree* Compiler::impIntrinsic(GenTree* newobjThis,
}

GenTree* index = gtNewIconNode(0, TYP_I_IMPL);
GenTreeIndexAddr* indexAddr = gtNewArrayIndexAddr(array, index, elemType, elemHnd);
GenTreeIndexAddr* indexAddr = gtNewArrayIndexAddr(array, index, JITtype2varType(jitType), elemHnd);
indexAddr->gtFlags &= ~GTF_INX_RNGCHK;
indexAddr->gtFlags |= GTF_INX_ADDR_NONNULL;
retNode = indexAddr;
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1 change: 1 addition & 0 deletions ...eaot/System.Private.CoreLib/src/System/Runtime/InteropServices/MemoryMarshal.NativeAot.cs
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Expand Up @@ -34,6 +34,7 @@ public static ref T GetArrayDataReference<T>(T[] array) =>
/// This technique does not perform array variance checks. The caller must manually perform any array variance checks
/// if the caller wishes to write to the returned reference.
/// </remarks>
[Intrinsic]
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ref byte GetArrayDataReference(Array array)
{
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2 changes: 1 addition & 1 deletion src/coreclr/vm/jitinterface.cpp
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Expand Up @@ -4632,7 +4632,7 @@ CorInfoType CEEInfo::getChildType (
}

/*********************************************************************/
// Check if this is a single dimensional array type
// Check if this is a single dimensional, zero based array type
bool CEEInfo::isSDArray(CORINFO_CLASS_HANDLE cls)
{
CONTRACTL {
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92 changes: 92 additions & 0 deletions src/tests/JIT/Intrinsics/MemoryMarshalGetArrayDataReference.cs
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Expand Up @@ -114,6 +114,98 @@ unsafe static int Main(string[] args)
ThrowsNRE(() => ref ptrByte(NoInline<byte[]>(null)));
ThrowsNRE(() => ref ptrString(NoInline<string[]>(null)));

// use no inline methods to avoid indirect call inlining in the future
[MethodImpl(MethodImplOptions.NoInlining)]
static delegate*<Array, ref byte> GetMdPtr() => &MemoryMarshal.GetArrayDataReference;
delegate*<Array, ref byte> ptrMd = GetMdPtr();

IsTrue(Unsafe.AreSame(ref MemoryMarshal.GetArrayDataReference((Array)testByteArray), ref testByteArray[0]));
IsTrue(Unsafe.AreSame(ref ptrMd(testByteArray), ref testByteArray[0]));

IsTrue(Unsafe.AreSame(ref MemoryMarshal.GetArrayDataReference((Array)NoInline(testByteArray)), ref testByteArray[0]));
IsTrue(Unsafe.AreSame(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(testByteArray)), ref testByteArray[0]));
IsTrue(Unsafe.AreSame(ref ptrMd(NoInline(testByteArray)), ref testByteArray[0]));

IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference((Array)testStringArray)), ref testStringArray[0]));
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref ptrMd(testStringArray)), ref testStringArray[0]));

IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference((Array)NoInline(testStringArray))), ref testStringArray[0]));
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(testStringArray))), ref testStringArray[0]));
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref ptrMd(NoInline(testStringArray))), ref testStringArray[0]));

byte[,] testByteMdArray = new byte[1, 1];
IsTrue(Unsafe.AreSame(ref MemoryMarshal.GetArrayDataReference(testByteMdArray), ref testByteMdArray[0, 0]));
IsTrue(Unsafe.AreSame(ref ptrMd(testByteMdArray), ref testByteMdArray[0, 0]));

IsTrue(Unsafe.AreSame(ref MemoryMarshal.GetArrayDataReference(NoInline(testByteMdArray)), ref testByteMdArray[0, 0]));
IsTrue(Unsafe.AreSame(ref ptrMd(NoInline(testByteMdArray)), ref testByteMdArray[0, 0]));

string[,] testStringMdArray = new string[1, 1];
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference(testStringMdArray)), ref testStringMdArray[0, 0]));
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref ptrMd(testStringMdArray)), ref testStringMdArray[0, 0]));

IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference(NoInline(testStringMdArray))), ref testStringMdArray[0, 0]));
IsTrue(Unsafe.AreSame(ref Unsafe.As<byte, string>(ref ptrMd(NoInline(testStringMdArray))), ref testStringMdArray[0, 0]));

Array nonZeroArray = Array.CreateInstance(typeof(string), new [] { 1 }, new [] { -1 });
string test = "test";
nonZeroArray.SetValue(test, -1);
IsTrue(ReferenceEquals(Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference(nonZeroArray)), test));
IsTrue(ReferenceEquals(Unsafe.As<byte, string>(ref ptrMd(nonZeroArray)), test));

IsTrue(ReferenceEquals(Unsafe.As<byte, string>(ref MemoryMarshal.GetArrayDataReference(NoInline(nonZeroArray))), test));
IsTrue(ReferenceEquals(Unsafe.As<byte, string>(ref ptrMd(NoInline(nonZeroArray))), test));

IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference((Array)new byte[0])));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference((Array)new string[0])));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(new byte[0, 0])));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(new string[0, 0])));

IsFalse(Unsafe.IsNullRef(ref ptrMd(new byte[0])));
IsFalse(Unsafe.IsNullRef(ref ptrMd(new string[0])));
IsFalse(Unsafe.IsNullRef(ref ptrMd(new byte[0, 0])));
IsFalse(Unsafe.IsNullRef(ref ptrMd(new string[0, 0])));

IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference((Array)NoInline(new byte[0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference((Array)NoInline(new string[0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline(new byte[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline(new string[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(new byte[0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(new string[0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(new byte[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(new string[0, 0]))));

IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline(new byte[0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline(new string[0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline(new byte[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline(new string[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline<Array>(new byte[0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline<Array>(new string[0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline<Array>(new byte[0, 0]))));
IsFalse(Unsafe.IsNullRef(ref ptrMd(NoInline<Array>(new string[0, 0]))));

ThrowsNRE(() => { _ = ref MemoryMarshal.GetArrayDataReference((Array)null); });
ThrowsNRE(() => { _ = ref ptrMd(null); });

ThrowsNRE(() => { _ = ref MemoryMarshal.GetArrayDataReference((Array)NoInline<byte[]>(null)); });
ThrowsNRE(() => { _ = ref MemoryMarshal.GetArrayDataReference((Array)NoInline<string[]>(null)); });
ThrowsNRE(() => { _ = ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(null)); });

ThrowsNRE(() => { _ = ref ptrMd(NoInline<byte[]>(null)); });
ThrowsNRE(() => { _ = ref ptrMd(NoInline<string[]>(null)); });
ThrowsNRE(() => { _ = ref ptrMd(NoInline<Array>(null)); });

ThrowsNRE(() => ref MemoryMarshal.GetArrayDataReference((Array)null));
ThrowsNRE(() => ref ptrMd(null));

ThrowsNRE(() => ref MemoryMarshal.GetArrayDataReference((Array)NoInline<byte[]>(null)));
ThrowsNRE(() => ref MemoryMarshal.GetArrayDataReference((Array)NoInline<string[]>(null)));
ThrowsNRE(() => ref MemoryMarshal.GetArrayDataReference(NoInline<Array>(null)));

ThrowsNRE(() => ref ptrMd(NoInline<byte[]>(null)));
ThrowsNRE(() => ref ptrMd(NoInline<string[]>(null)));
ThrowsNRE(() => ref ptrMd(NoInline<Array>(null)));

// from https://github.com/dotnet/runtime/issues/58312#issuecomment-993491291
[MethodImpl(MethodImplOptions.NoInlining)]
static int Problem1(StructWithByte[] a)
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