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[TableGen] Allow intrinsics to have up to 8 return values.

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Differential Revision: https://reviews.llvm.org/D38633

llvm-svn: 315598
This commit is contained in:
Artem Belevich 2017-10-12 17:40:00 +00:00
parent 02880d247a
commit db5b3a9018
3 changed files with 49 additions and 6 deletions
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15
lib/IR/Function.cpp
View File

@ -649,7 +649,10 @@ enum IIT_Info {
IIT_VEC_OF_ANYPTRS_TO_ELT = 34,
IIT_I128 = 35,
IIT_V512 = 36,
IIT_V1024 = 37
IIT_V1024 = 37,
IIT_STRUCT6 = 38,
IIT_STRUCT7 = 39,
IIT_STRUCT8 = 40
};
static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
@ -798,6 +801,9 @@ static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
case IIT_EMPTYSTRUCT:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct, 0));
return;
case IIT_STRUCT8: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT7: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT6: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT5: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT4: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT3: ++StructElts; LLVM_FALLTHROUGH;
@ -874,11 +880,10 @@ static Type *DecodeFixedType(ArrayRef<Intrinsic::IITDescriptor> &Infos,
return PointerType::get(DecodeFixedType(Infos, Tys, Context),
D.Pointer_AddressSpace);
case IITDescriptor::Struct: {
Type *Elts[5];
assert(D.Struct_NumElements <= 5 && "Can't handle this yet");
SmallVector<Type *, 8> Elts;
for (unsigned i = 0, e = D.Struct_NumElements; i != e; ++i)
Elts[i] = DecodeFixedType(Infos, Tys, Context);
return StructType::get(Context, makeArrayRef(Elts,D.Struct_NumElements));
Elts.push_back(DecodeFixedType(Infos, Tys, Context));
return StructType::get(Context, Elts);
}
case IITDescriptor::Argument:
return Tys[D.getArgumentNumber()];

32
test/TableGen/intrinsic-struct.td Normal file
View File

@ -0,0 +1,32 @@
// RUN: llvm-tblgen -gen-intrinsic %s | FileCheck %s
// XFAIL: vg_leak
class IntrinsicProperty;
class ValueType<int size, int value> {
string Namespace = "MVT";
int Size = size;
int Value = value;
}
class LLVMType<ValueType vt> {
ValueType VT = vt;
}
class Intrinsic<string name, list<LLVMType> ret_types = []> {
string LLVMName = name;
bit isTarget = 0;
string TargetPrefix = "";
list<LLVMType> RetTypes = ret_types;
list<LLVMType> ParamTypes = [];
list<IntrinsicProperty> IntrProperties = [];
}
def iAny : ValueType<0, 253>;
def llvm_anyint_ty : LLVMType<iAny>;
// Make sure we can return up to 8 values
// CHECK: returns_8_results // llvm.returns.8.results
def int_returns_8_results : Intrinsic<"llvm.returns.8.results",
[llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty,
llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty]>;

8
utils/TableGen/IntrinsicEmitter.cpp
View File

@ -214,7 +214,10 @@ enum IIT_Info {
IIT_VEC_OF_ANYPTRS_TO_ELT = 34,
IIT_I128 = 35,
IIT_V512 = 36,
IIT_V1024 = 37
IIT_V1024 = 37,
IIT_STRUCT6 = 38,
IIT_STRUCT7 = 39,
IIT_STRUCT8 = 40
};
static void EncodeFixedValueType(MVT::SimpleValueType VT,
@ -369,6 +372,9 @@ static void ComputeFixedEncoding(const CodeGenIntrinsic &Int,
case 3: TypeSig.push_back(IIT_STRUCT3); break;
case 4: TypeSig.push_back(IIT_STRUCT4); break;
case 5: TypeSig.push_back(IIT_STRUCT5); break;
case 6: TypeSig.push_back(IIT_STRUCT6); break;
case 7: TypeSig.push_back(IIT_STRUCT7); break;
case 8: TypeSig.push_back(IIT_STRUCT8); break;
default: llvm_unreachable("Unhandled case in struct");
}