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34 changes: 31 additions & 3 deletions src/coreclr/jit/hwintrinsiccodegenarm64.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -490,6 +490,18 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
{
assert(!instrIsRMW);

insScalableOpts soptEmb = INS_SCALABLE_OPTS_NONE;
switch (intrinEmbMask.id)
{
case NI_Sve_ExtractAfterLastVector:
case NI_Sve_ExtractLastVector:
soptEmb = INS_SCALABLE_OPTS_WITH_SIMD_SCALAR;
break;

default:
break;
}

if (targetReg != falseReg)
{
// If targetReg is not the same as `falseReg` then need to move
Expand All @@ -511,7 +523,7 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
// If falseValue is zero, just zero out those lanes of targetReg using `movprfx`
// and /Z
GetEmitter()->emitIns_R_R_R(INS_sve_movprfx, emitSize, targetReg, maskReg, targetReg,
opt);
opt, soptEmb);
}
}
else if (emitter::isVectorRegister(embMaskOp1Reg) && (targetReg == embMaskOp1Reg))
Expand All @@ -522,7 +534,8 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)

// We cannot use use `movprfx` here to move falseReg to targetReg because that will
// overwrite the value of embMaskOp1Reg which is present in targetReg.
GetEmitter()->emitIns_R_R_R(insEmbMask, emitSize, targetReg, maskReg, embMaskOp1Reg, opt);
GetEmitter()->emitIns_R_R_R(insEmbMask, emitSize, targetReg, maskReg, embMaskOp1Reg, opt,
soptEmb);

GetEmitter()->emitIns_R_R_R_R(INS_sve_sel, emitSize, targetReg, maskReg, targetReg,
falseReg, opt);
Expand All @@ -536,7 +549,7 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
}
}

GetEmitter()->emitIns_R_R_R(insEmbMask, emitSize, targetReg, maskReg, embMaskOp1Reg, opt);
GetEmitter()->emitIns_R_R_R(insEmbMask, emitSize, targetReg, maskReg, embMaskOp1Reg, opt, soptEmb);
break;
}

Expand Down Expand Up @@ -2097,6 +2110,21 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
break;
}

case NI_Sve_ExtractAfterLastScalar:
case NI_Sve_ExtractLastScalar:
assert(op1Reg != REG_NA); // this is the embedded mask
assert(op2Reg != REG_NA);

if (varTypeIsFloating(node))
{
GetEmitter()->emitIns_R_R_R(ins, EA_SCALABLE, targetReg, /* mask */ op1Reg, op2Reg, opt, INS_SCALABLE_OPTS_WITH_SIMD_SCALAR);
}
else
{
GetEmitter()->emitIns_R_R_R(ins, emitTypeSize(node), targetReg, /* mask */ op1Reg, op2Reg, opt);
}
break;

case NI_Sve_InsertIntoShiftedVector:
{
assert(isRMW);
Expand Down
4 changes: 4 additions & 0 deletions src/coreclr/jit/hwintrinsiclistarm64sve.h
Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,10 @@ HARDWARE_INTRINSIC(Sve, CreateWhileLessThanOrEqualMask8Bit,
HARDWARE_INTRINSIC(Sve, Divide, -1, 2, true, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_sdiv, INS_sve_udiv, INS_sve_sdiv, INS_sve_udiv, INS_sve_fdiv, INS_sve_fdiv}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation)
HARDWARE_INTRINSIC(Sve, DotProduct, -1, 3, true, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_sdot, INS_sve_udot, INS_sve_sdot, INS_sve_udot, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_HasRMWSemantics)
HARDWARE_INTRINSIC(Sve, DotProductBySelectedScalar, -1, 4, true, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_sdot, INS_sve_udot, INS_sve_sdot, INS_sve_udot, INS_invalid, INS_invalid}, HW_Category_SIMDByIndexedElement, HW_Flag_Scalable|HW_Flag_BaseTypeFromFirstArg|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics|HW_Flag_LowVectorOperation)
HARDWARE_INTRINSIC(Sve, ExtractAfterLastScalar, -1, -1, false, {INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_LowMaskedOperation|HW_Flag_BaseTypeFromFirstArg|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Sve, ExtractAfterLastVector, -1, -1, false, {INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta, INS_sve_lasta}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_LowMaskedOperation)
HARDWARE_INTRINSIC(Sve, ExtractLastScalar, -1, -1, false, {INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_LowMaskedOperation|HW_Flag_BaseTypeFromFirstArg|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Sve, ExtractLastVector, -1, -1, false, {INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb, INS_sve_lastb}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_LowMaskedOperation)
HARDWARE_INTRINSIC(Sve, FusedMultiplyAdd, -1, -1, false, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fmla, INS_sve_fmla}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation|HW_Flag_FmaIntrinsic|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Sve, FusedMultiplyAddBySelectedScalar, -1, 4, true, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fmla, INS_sve_fmla}, HW_Category_SIMDByIndexedElement, HW_Flag_Scalable|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics|HW_Flag_FmaIntrinsic|HW_Flag_LowVectorOperation)
HARDWARE_INTRINSIC(Sve, FusedMultiplyAddNegated, -1, -1, false, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fnmla, INS_sve_fnmla}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation|HW_Flag_FmaIntrinsic|HW_Flag_SpecialCodeGen)
Expand Down
44 changes: 35 additions & 9 deletions src/coreclr/jit/lowerarmarch.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -1309,17 +1309,43 @@ GenTree* Lowering::LowerHWIntrinsic(GenTreeHWIntrinsic* node)
unsigned simdSize = node->GetSimdSize();
var_types simdType = Compiler::getSIMDTypeForSize(simdSize);
GenTree* trueMask = comp->gtNewSimdAllTrueMaskNode(simdBaseJitType, simdSize);
GenTree* trueVal = node;
GenTree* falseVal = comp->gtNewZeroConNode(simdType);

GenTreeHWIntrinsic* condSelNode =
comp->gtNewSimdHWIntrinsicNode(simdType, trueMask, trueVal, falseVal, NI_Sve_ConditionalSelect,
simdBaseJitType, simdSize);
switch (intrinsicId)
{
// These are special cases where we need to handle the embedded mask differently
// because ConditionalSelect expects a vector, but these APIs return a scalar.
case NI_Sve_ExtractLastScalar:
case NI_Sve_ExtractAfterLastScalar:
{
// Create the same node with an additional operand to pass the mask.
GenTreeHWIntrinsic* newNode =
comp->gtNewSimdHWIntrinsicNode(node->TypeGet(), trueMask, node->Op(1), intrinsicId,
simdBaseJitType, simdSize);

BlockRange().InsertAfter(node->Op(1), trueMask);
BlockRange().InsertAfter(trueMask, newNode);
BlockRange().Remove(node);
use.ReplaceWith(newNode);

node = newNode;
}
break;

BlockRange().InsertBefore(node, trueMask);
BlockRange().InsertBefore(node, falseVal);
BlockRange().InsertAfter(node, condSelNode);
use.ReplaceWith(condSelNode);
default:
{
GenTree* trueVal = node;
GenTree* falseVal = comp->gtNewZeroConNode(simdType);
GenTreeHWIntrinsic* condSelNode =
comp->gtNewSimdHWIntrinsicNode(simdType, trueMask, trueVal, falseVal,
NI_Sve_ConditionalSelect, simdBaseJitType, simdSize);

BlockRange().InsertBefore(node, trueMask);
BlockRange().InsertBefore(node, falseVal);
BlockRange().InsertAfter(node, condSelNode);
use.ReplaceWith(condSelNode);
}
break;
}
}
}
}
Expand Down
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