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[SYCL] Represent JointMatrixINTEL type as extension type #8343

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Merged
merged 8 commits into from
Apr 13, 2023
Merged

[SYCL] Represent JointMatrixINTEL type as extension type #8343

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b9529a6
[SYCL] Represent JointMatrixINTEL type as extension type
MrSidims Feb 14, 2023
366c3e3
Apply clang-format
MrSidims Mar 31, 2023
5d16304
Fix issue and test
MrSidims Mar 31, 2023
3edb1bd
check for RD
MrSidims Apr 3, 2023
8d29f3c
Typos fixes
MrSidims Apr 6, 2023
055c129
Merge remote-tracking branch 'origin/sycl' into try-matrix-opaque
MrSidims Apr 10, 2023
3e8d12a
Merge remote-tracking branch 'origin/sycl' into try-matrix-opaque
MrSidims Apr 12, 2023
a6e4e23
Merge remote-tracking branch 'origin/sycl' into try-matrix-opaque
MrSidims Apr 12, 2023
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143 changes: 84 additions & 59 deletions clang/lib/CodeGen/CodeGenTypes.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -51,65 +51,6 @@ void CodeGenTypes::addRecordTypeName(const RecordDecl *RD,
StringRef suffix) {
SmallString<256> TypeName;
llvm::raw_svector_ostream OS(TypeName);
// If RD is spirv_JointMatrixINTEL type, mangle differently.
if (CGM.getTriple().isSPIRV() || CGM.getTriple().isSPIR()) {
if (RD->getQualifiedNameAsString() == "__spv::__spirv_JointMatrixINTEL") {
if (auto TemplateDecl = dyn_cast<ClassTemplateSpecializationDecl>(RD)) {
ArrayRef<TemplateArgument> TemplateArgs =
TemplateDecl->getTemplateArgs().asArray();
OS << "spirv.JointMatrixINTEL.";
for (auto &TemplateArg : TemplateArgs) {
OS << "_";
if (TemplateArg.getKind() == TemplateArgument::Type) {
llvm::Type *TTy = ConvertType(TemplateArg.getAsType());
if (TTy->isIntegerTy()) {
switch (TTy->getIntegerBitWidth()) {
case 8:
OS << "char";
break;
case 16:
OS << "short";
break;
case 32:
OS << "int";
break;
case 64:
OS << "long";
break;
default:
OS << "i" << TTy->getIntegerBitWidth();
break;
}
} else if (TTy->isHalfTy()) {
OS << "half";
} else if (TTy->isFloatTy()) {
OS << "float";
} else if (TTy->isDoubleTy()) {
OS << "double";
} else if (TTy->isBFloatTy()) {
OS << "bfloat16";
} else if (TTy->isStructTy()) {
StringRef LlvmTyName = TTy->getStructName();
// Emit half/bfloat16/tf32 for sycl[::*]::{half,bfloat16,tf32}
if (LlvmTyName.startswith("class.sycl::") ||
LlvmTyName.startswith("class.__sycl_internal::"))
LlvmTyName = LlvmTyName.rsplit("::").second;
if (LlvmTyName != "half" && LlvmTyName != "bfloat16" &&
LlvmTyName != "tf32")
llvm_unreachable("Wrong matrix base type!");
OS << LlvmTyName;
} else {
llvm_unreachable("Wrong matrix base type!");
}
} else if (TemplateArg.getKind() == TemplateArgument::Integral) {
OS << TemplateArg.getAsIntegral();
}
}
Ty->setName(OS.str());
return;
}
}
}
OS << RD->getKindName() << '.';

// FIXME: We probably want to make more tweaks to the printing policy. For
Expand Down Expand Up @@ -460,6 +401,78 @@ llvm::Type *CodeGenTypes::ConvertFunctionTypeInternal(QualType QFT) {
return ResultType;
}

template <bool NeedTypeInterpret = false>
llvm::Type *getJointMatrixINTELExtType(llvm::Type *CompTy,
ArrayRef<TemplateArgument> TemplateArgs,
const unsigned Val = 0) {
// TODO: we should actually have exactly 5 template parameters: 1 for
// type and 4 for type parameters. But in previous version of the SPIR-V
// spec we have Layout matrix type parameter, that was later removed.
// Once we update to the newest version of the spec - this should be updated.
assert((TemplateArgs.size() == 5 || TemplateArgs.size() == 6) &&
"Wrong JointMatrixINTEL template parameters number");
// This is required to represent optional 'Component Type Interpretation'
// parameter
using ParamsType =
typename std::conditional<NeedTypeInterpret, SmallVector<unsigned, 6>,
SmallVector<unsigned, 5>>::type;
ParamsType Params;
if constexpr (NeedTypeInterpret)
Params = {0, 0, 0, 0, 0, Val};
else
Params = {0, 0, 0, 0, 0};
for (size_t I = 1; I != TemplateArgs.size(); ++I) {
assert(TemplateArgs[I].getKind() == TemplateArgument::Integral &&
"Wrong JointMatrixINTEL template parameter");
Params[I - 1] = TemplateArgs[I].getAsIntegral().getExtValue();
}
return llvm::TargetExtType::get(CompTy->getContext(),
"spirv.JointMatrixINTEL", {CompTy}, Params);
}

/// ConvertSYCLJointMatrixINTELType - Convert SYCL joint_matrix type
/// which is represented as a pointer to a structure to LLVM extension type
/// with the parameters that follow SPIR-V JointMatrixINTEL type.
/// The expected representation is:
/// target("spirv.JointMatrixINTEL", %element_type, %rows%, %cols%, %scope%,
/// %use%, (optional) %element_type_interpretation%)
llvm::Type *CodeGenTypes::ConvertSYCLJointMatrixINTELType(RecordDecl *RD) {
auto *TemplateDecl = cast<ClassTemplateSpecializationDecl>(RD);
ArrayRef<TemplateArgument> TemplateArgs =
TemplateDecl->getTemplateArgs().asArray();
assert(TemplateArgs[0].getKind() == TemplateArgument::Type &&
"1st JointMatrixINTEL template parameter must be type");
llvm::Type *CompTy = ConvertType(TemplateArgs[0].getAsType());

// Per JointMatrixINTEL spec the type can have an optional
// 'Component Type Interpretation' parameter. We should emit it in case
// if on SYCL level joint matrix accepts 'bfloat16' or 'tf32' objects as
// matrix's components. Yet 'bfloat16' should be represented as 'int16' and
// 'tf32' as 'float' types.
if (CompTy->isStructTy()) {
StringRef LlvmTyName = CompTy->getStructName();
// Emit half/int16/float for sycl[::*]::{half,bfloat16,tf32}
if (LlvmTyName.startswith("class.sycl::") ||
LlvmTyName.startswith("class.__sycl_internal::"))
LlvmTyName = LlvmTyName.rsplit("::").second;
if (LlvmTyName == "half") {
CompTy = llvm::Type::getHalfTy(getLLVMContext());
return getJointMatrixINTELExtType(CompTy, TemplateArgs);
} else if (LlvmTyName == "tf32") {
CompTy = llvm::Type::getFloatTy(getLLVMContext());
// 'tf32' interpretation is mapped to '0'
return getJointMatrixINTELExtType<true>(CompTy, TemplateArgs, 0);
} else if (LlvmTyName == "bfloat16") {
CompTy = llvm::Type::getInt16Ty(getLLVMContext());
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LLVM has a bfloat type, so surely it would make more sense to use that instead of i16? Or is there something about the JointMatrixINTEL spec that I'm missing?

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@MrSidims MrSidims Feb 20, 2023 •
edited
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The thing is that in SPIR-V we don't have bfloat type (yet?). Instead we have conversion instructions and using short value as bfloat16 storage. Same for SYCL - here bfloat16 class is a wrapper around int16 storage. So for the consistency int16 is used here as well, though there is no other reason not to reuse LLVM's bf16 (just because we still will replace it with int16 in SPIR-V). So I lean towards appying this suggestion.

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Actually, lets keep i16 to be aligned with SPIR-V spec. Once we have proper SPIR-V bf16 type we can start generating in by DPC++ compiler either here or elsewhere.

// 'bfloat16' interpretation is mapped to '1'
return getJointMatrixINTELExtType<true>(CompTy, TemplateArgs, 1);
} else {
llvm_unreachable("Wrong matrix base type!");
}
}
return getJointMatrixINTELExtType(CompTy, TemplateArgs);
}

/// ConvertType - Convert the specified type to its LLVM form.
llvm::Type *CodeGenTypes::ConvertType(QualType T) {
T = Context.getCanonicalType(T);
Expand Down Expand Up @@ -745,6 +758,18 @@ llvm::Type *CodeGenTypes::ConvertType(QualType T) {
llvm::Type *PointeeType = ConvertTypeForMem(ETy);
if (PointeeType->isVoidTy())
PointeeType = llvm::Type::getInt8Ty(getLLVMContext());
if (CGM.getTriple().isSPIRV() || CGM.getTriple().isSPIR()) {
const Type *ClangETy = ETy.getTypePtrOrNull();
if (ClangETy && ClangETy->isStructureOrClassType()) {
RecordDecl *RD = ClangETy->getAsCXXRecordDecl();
if (RD &&
RD->getQualifiedNameAsString() == "__spv::__spirv_JointMatrixINTEL") {
ResultType = ConvertSYCLJointMatrixINTELType(RD);
break;
}
}
}

unsigned AS = getTargetAddressSpace(ETy);
ResultType = llvm::PointerType::get(PointeeType, AS);
break;
Expand Down
8 changes: 8 additions & 0 deletions clang/lib/CodeGen/CodeGenTypes.h
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Expand Up @@ -133,6 +133,14 @@ class CodeGenTypes {
/// memory representation is usually i8 or i32, depending on the target.
llvm::Type *ConvertTypeForMem(QualType T, bool ForBitField = false);

/// ConvertSYCLJointMatrixINTELType - Convert SYCL joint_matrix type
/// which is represented as a pointer to a structure to LLVM extension type
/// with the parameters that follow SPIR-V JointMatrixINTEL type.
/// The expected representation is:
/// target("spirv.JointMatrixINTEL", %element_type, %rows%, %cols%, %scope%,
/// %use%, (optional) %element_type_interpretation%)
llvm::Type *ConvertSYCLJointMatrixINTELType(RecordDecl *RD);

/// GetFunctionType - Get the LLVM function type for \arg Info.
llvm::FunctionType *GetFunctionType(const CGFunctionInfo &Info);

Expand Down
34 changes: 17 additions & 17 deletions clang/test/CodeGenSYCL/matrix.cpp
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Expand Up @@ -5,18 +5,18 @@
#include <stdint.h>

namespace __spv {
template <typename T, size_t R, size_t C, uint32_t U, uint32_t S>
template <typename T, size_t R, size_t C, uint32_t L, uint32_t S, uint32_t U>
struct __spirv_JointMatrixINTEL;
}

// CHECK: @_Z2f1{{.*}}(%spirv.JointMatrixINTEL._float_5_10_0_1
void f1(__spv::__spirv_JointMatrixINTEL<float, 5, 10, 0, 1> *matrix) {}
// CHECK: @_Z2f1{{.*}}(target("spirv.JointMatrixINTEL", float, 5, 10, 0, 1, 0)
void f1(__spv::__spirv_JointMatrixINTEL<float, 5, 10, 0, 1, 0> *matrix) {}

// CHECK: @_Z2f2{{.*}}(%spirv.JointMatrixINTEL._long_10_2_0_0
void f2(__spv::__spirv_JointMatrixINTEL<uint64_t, 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f2{{.*}}(target("spirv.JointMatrixINTEL", i64, 10, 2, 0, 0, 0)
void f2(__spv::__spirv_JointMatrixINTEL<uint64_t, 10, 2, 0, 0, 0> *matrix) {}
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@aelovikov-intel here is the test for unsigned. Would you mind if I won't duplicate it in sycl headers?

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Hmm, I'm not sure what's the purpose of the SYCL RT tests then, but yes, no need for unsigned there.

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@MrSidims MrSidims Apr 12, 2023 •
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Well, matrix API is changing overtime, so having several compilation tests using real headers is good to have. One the extension is stable we will remove them (note, the E2E tests were in different repo and require specific hardware)


// CHECK: @_Z2f3{{.*}}(%spirv.JointMatrixINTEL._char_10_2_0_0
void f3(__spv::__spirv_JointMatrixINTEL<char, 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f3{{.*}}(target("spirv.JointMatrixINTEL", i8, 10, 2, 0, 0, 0)
void f3(__spv::__spirv_JointMatrixINTEL<char, 10, 2, 0, 0, 0> *matrix) {}

namespace sycl {
class half {};
Expand All @@ -25,17 +25,17 @@ namespace sycl {
}
typedef sycl::half my_half;

// CHECK: @_Z2f4{{.*}}(%spirv.JointMatrixINTEL._half_10_2_0_0
void f4(__spv::__spirv_JointMatrixINTEL<my_half, 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f4{{.*}}(target("spirv.JointMatrixINTEL", half, 10, 2, 0, 0, 0)
void f4(__spv::__spirv_JointMatrixINTEL<my_half, 10, 2, 0, 0, 0> *matrix) {}

// CHECK: @_Z2f5{{.*}}(%spirv.JointMatrixINTEL._bfloat16_10_2_0_0
void f5(__spv::__spirv_JointMatrixINTEL<sycl::bfloat16, 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f5{{.*}}(target("spirv.JointMatrixINTEL", i16, 10, 2, 0, 0, 0, 1)
void f5(__spv::__spirv_JointMatrixINTEL<sycl::bfloat16, 10, 2, 0, 0, 0> *matrix) {}

// CHECK: @_Z2f6{{.*}}(%spirv.JointMatrixINTEL._i128_10_2_0_0
void f6(__spv::__spirv_JointMatrixINTEL<_BitInt(128), 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f6{{.*}}(target("spirv.JointMatrixINTEL", i128, 10, 2, 0, 0, 0)
void f6(__spv::__spirv_JointMatrixINTEL<_BitInt(128), 10, 2, 0, 0, 0> *matrix) {}

// CHECK: @_Z2f7{{.*}}(%spirv.JointMatrixINTEL._tf32_10_2_0_0
void f7(__spv::__spirv_JointMatrixINTEL<sycl::tf32, 10, 2, 0, 0> *matrix) {}
// CHECK: @_Z2f7{{.*}}(target("spirv.JointMatrixINTEL", float, 10, 2, 0, 0, 0, 0)
void f7(__spv::__spirv_JointMatrixINTEL<sycl::tf32, 10, 2, 0, 0, 0> *matrix) {}

// CHECK: @_Z2f8{{.*}}(%spirv.JointMatrixINTEL._double_5_10_0_1
void f8(__spv::__spirv_JointMatrixINTEL<double, 5, 10, 0, 1> *matrix) {}
// CHECK: @_Z2f8{{.*}}(target("spirv.JointMatrixINTEL", double, 5, 10, 0, 1, 0)
void f8(__spv::__spirv_JointMatrixINTEL<double, 5, 10, 0, 1, 0> *matrix) {}
6 changes: 3 additions & 3 deletions sycl/test/matrix/legacy/matrix-int8-test.cpp
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@@ -1,8 +1,8 @@
// RUN: %clangxx -fsycl -fsycl-device-only -O2 -DSYCL_EXT_ONEAPI_MATRIX_VERSION=1 -S -emit-llvm -o - %s | FileCheck %s

// CHECK-DAG: %spirv.JointMatrixINTEL._char_12_48_0_3 = type opaque
// CHECK-DAG: %spirv.JointMatrixINTEL._int_12_12_0_3 = type opaque
// CHECK-DAG: %spirv.JointMatrixINTEL._char_48_12_3_3 = type opaque
// CHECK-DAG: target("spirv.JointMatrixINTEL", i8, 12, 48, 0, 3, 0)
// CHECK-DAG: target("spirv.JointMatrixINTEL", i32, 12, 12, 0, 3, 0)
// CHECK-DAG: target("spirv.JointMatrixINTEL", i8, 48, 12, 3, 3, 0)

#include <iostream>
#include <sycl/sycl.hpp>
Expand Down
6 changes: 3 additions & 3 deletions sycl/test/matrix/matrix-int8-test.cpp
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
// RUN: %clangxx -fsycl -fsycl-device-only -DSYCL_EXT_ONEAPI_MATRIX_VERSION=4 -O2 -S -emit-llvm -o - %s | FileCheck %s

// CHECK-DAG: %spirv.JointMatrixINTEL._char_12_48_0_3_0 = type opaque
// CHECK-DAG: %spirv.JointMatrixINTEL._int_12_12_3_3_2 = type opaque
// CHECK-DAG: %spirv.JointMatrixINTEL._char_48_12_2_3_1 = type opaque
// CHECK-DAG: target("spirv.JointMatrixINTEL", i8, 12, 48, 0, 3, 0)
// CHECK-DAG: target("spirv.JointMatrixINTEL", i32, 12, 12, 3, 3, 2)
// CHECK-DAG: target("spirv.JointMatrixINTEL", i8, 48, 12, 2, 3, 1)

#include <iostream>
#include <sycl/sycl.hpp>
Expand Down