https://github.com/joaosaffran updated
https://github.com/llvm/llvm-project/pull/137284
>From a38f10b51ac930be4bb5a5718d204d9f2d0c0396 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Fri, 25 Apr 2025 05:09:08 +0000
Subject: [PATCH 1/6] refactoring mcdxbc struct to store root parameters out of
order
---
.../llvm/MC/DXContainerRootSignature.h | 137 +++++++++++++++++-
llvm/lib/MC/DXContainerRootSignature.cpp | 68 ++++-----
llvm/lib/ObjectYAML/DXContainerEmitter.cpp | 26 ++--
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 45 +++---
4 files changed, 201 insertions(+), 75 deletions(-)
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
index 44e26c81eedc1..e1f4abbcebf8f 100644
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -6,21 +6,146 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/ADT/STLForwardCompat.h"
#include "llvm/BinaryFormat/DXContainer.h"
+#include "llvm/Support/ErrorHandling.h"
+#include <cstddef>
#include <cstdint>
-#include <limits>
+#include <variant>
namespace llvm {
class raw_ostream;
namespace mcdxbc {
+struct RootParameterHeader : public dxbc::RootParameterHeader {
+
+ size_t Location;
+
+ RootParameterHeader() = default;
+
+ RootParameterHeader(dxbc::RootParameterHeader H, size_t L)
+ : dxbc::RootParameterHeader(H), Location(L) {}
+};
+
+using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor,
+ dxbc::RST0::v1::RootDescriptor>;
+using ParametersView =
+ std::variant<dxbc::RootConstants, dxbc::RST0::v0::RootDescriptor,
+ dxbc::RST0::v1::RootDescriptor>;
struct RootParameter {
- dxbc::RootParameterHeader Header;
- union {
- dxbc::RootConstants Constants;
- dxbc::RST0::v1::RootDescriptor Descriptor;
+ SmallVector<RootParameterHeader> Headers;
+
+ SmallVector<dxbc::RootConstants> Constants;
+ SmallVector<RootDescriptor> Descriptors;
+
+ void addHeader(dxbc::RootParameterHeader H, size_t L) {
+ Headers.push_back(RootParameterHeader(H, L));
+ }
+
+ void addParameter(dxbc::RootParameterHeader H, dxbc::RootConstants C) {
+ addHeader(H, Constants.size());
+ Constants.push_back(C);
+ }
+
+ void addParameter(dxbc::RootParameterHeader H,
+ dxbc::RST0::v0::RootDescriptor D) {
+ addHeader(H, Descriptors.size());
+ Descriptors.push_back(D);
+ }
+
+ void addParameter(dxbc::RootParameterHeader H,
+ dxbc::RST0::v1::RootDescriptor D) {
+ addHeader(H, Descriptors.size());
+ Descriptors.push_back(D);
+ }
+
+ ParametersView get(const RootParameterHeader &H) const {
+ switch (H.ParameterType) {
+ case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
+ return Constants[H.Location];
+ case llvm::to_underlying(dxbc::RootParameterType::CBV):
+ case llvm::to_underlying(dxbc::RootParameterType::SRV):
+ case llvm::to_underlying(dxbc::RootParameterType::UAV):
+ RootDescriptor VersionedParam = Descriptors[H.Location];
+ if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
+ VersionedParam))
+ return std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
+ return std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
+ }
+
+ llvm_unreachable("Unimplemented parameter type");
+ }
+
+ struct iterator {
+ const RootParameter &Parameters;
+ SmallVector<RootParameterHeader>::const_iterator Current;
+
+ // Changed parameter type to match member variable (removed const)
+ iterator(const RootParameter &P,
+ SmallVector<RootParameterHeader>::const_iterator C)
+ : Parameters(P), Current(C) {}
+ iterator(const iterator &) = default;
+
+ ParametersView operator*() {
+ ParametersView Val;
+ switch (Current->ParameterType) {
+ case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
+ Val = Parameters.Constants[Current->Location];
+ break;
+
+ case llvm::to_underlying(dxbc::RootParameterType::CBV):
+ case llvm::to_underlying(dxbc::RootParameterType::SRV):
+ case llvm::to_underlying(dxbc::RootParameterType::UAV):
+ RootDescriptor VersionedParam =
+ Parameters.Descriptors[Current->Location];
+ if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
+ VersionedParam))
+ Val = std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
+ else
+ Val = std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
+ break;
+ }
+ return Val;
+ }
+
+ iterator operator++() {
+ Current++;
+ return *this;
+ }
+
+ iterator operator++(int) {
+ iterator Tmp = *this;
+ ++*this;
+ return Tmp;
+ }
+
+ iterator operator--() {
+ Current--;
+ return *this;
+ }
+
+ iterator operator--(int) {
+ iterator Tmp = *this;
+ --*this;
+ return Tmp;
+ }
+
+ bool operator==(const iterator I) { return I.Current == Current; }
+ bool operator!=(const iterator I) { return !(*this == I); }
};
+
+ iterator begin() const { return iterator(*this, Headers.begin()); }
+
+ iterator end() const { return iterator(*this, Headers.end()); }
+
+ size_t size() const { return Headers.size(); }
+
+ bool isEmpty() const { return Headers.empty(); }
+
+ llvm::iterator_range<RootParameter::iterator> getAll() const {
+ return llvm::make_range(begin(), end());
+ }
};
struct RootSignatureDesc {
@@ -29,7 +154,7 @@ struct RootSignatureDesc {
uint32_t RootParameterOffset = 0U;
uint32_t StaticSamplersOffset = 0u;
uint32_t NumStaticSamplers = 0u;
- SmallVector<mcdxbc::RootParameter> Parameters;
+ mcdxbc::RootParameter Parameters;
void write(raw_ostream &OS) const;
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
index 2693cb9943d5e..18242ccc1e935 100644
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -8,7 +8,9 @@
#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/BinaryFormat/DXContainer.h"
#include "llvm/Support/EndianStream.h"
+#include <variant>
using namespace llvm;
using namespace llvm::mcdxbc;
@@ -32,22 +34,15 @@ size_t RootSignatureDesc::getSize() const {
size_t Size = sizeof(dxbc::RootSignatureHeader) +
Parameters.size() * sizeof(dxbc::RootParameterHeader);
- for (const mcdxbc::RootParameter &P : Parameters) {
- switch (P.Header.ParameterType) {
- case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- Size += sizeof(dxbc::RootConstants);
- break;
- case llvm::to_underlying(dxbc::RootParameterType::CBV):
- case llvm::to_underlying(dxbc::RootParameterType::SRV):
- case llvm::to_underlying(dxbc::RootParameterType::UAV):
- if (Version == 1)
- Size += sizeof(dxbc::RST0::v0::RootDescriptor);
- else
- Size += sizeof(dxbc::RST0::v1::RootDescriptor);
-
- break;
- }
+ for (const auto &P : Parameters) {
+ std::visit(
+ [&Size](auto &Value) -> void {
+ using T = std::decay_t<decltype(Value)>;
+ Size += sizeof(T);
+ },
+ P);
}
+
return Size;
}
@@ -66,39 +61,40 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
support::endian::write(BOS, Flags, llvm::endianness::little);
SmallVector<uint32_t> ParamsOffsets;
- for (const mcdxbc::RootParameter &P : Parameters) {
- support::endian::write(BOS, P.Header.ParameterType,
- llvm::endianness::little);
- support::endian::write(BOS, P.Header.ShaderVisibility,
- llvm::endianness::little);
+ for (const auto &P : Parameters.Headers) {
+ support::endian::write(BOS, P.ParameterType, llvm::endianness::little);
+ support::endian::write(BOS, P.ShaderVisibility, llvm::endianness::little);
ParamsOffsets.push_back(writePlaceholder(BOS));
}
assert(NumParameters == ParamsOffsets.size());
- for (size_t I = 0; I < NumParameters; ++I) {
+ auto P = Parameters.begin();
+ for (size_t I = 0; I < NumParameters; ++I, P++) {
rewriteOffsetToCurrentByte(BOS, ParamsOffsets[I]);
- const mcdxbc::RootParameter &P = Parameters[I];
- switch (P.Header.ParameterType) {
- case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- support::endian::write(BOS, P.Constants.ShaderRegister,
+ if (std::holds_alternative<dxbc::RootConstants>(*P)) {
+ auto Constants = std::get<dxbc::RootConstants>(*P);
+ support::endian::write(BOS, Constants.ShaderRegister,
llvm::endianness::little);
- support::endian::write(BOS, P.Constants.RegisterSpace,
+ support::endian::write(BOS, Constants.RegisterSpace,
llvm::endianness::little);
- support::endian::write(BOS, P.Constants.Num32BitValues,
+ support::endian::write(BOS, Constants.Num32BitValues,
llvm::endianness::little);
- break;
- case llvm::to_underlying(dxbc::RootParameterType::CBV):
- case llvm::to_underlying(dxbc::RootParameterType::SRV):
- case llvm::to_underlying(dxbc::RootParameterType::UAV):
- support::endian::write(BOS, P.Descriptor.ShaderRegister,
+ } else if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(*P)) {
+ auto Descriptor = std::get<dxbc::RST0::v0::RootDescriptor>(*P);
+ support::endian::write(BOS, Descriptor.ShaderRegister,
+ llvm::endianness::little);
+ support::endian::write(BOS, Descriptor.RegisterSpace,
+ llvm::endianness::little);
+ } else if (std::holds_alternative<dxbc::RST0::v1::RootDescriptor>(*P)) {
+ auto Descriptor = std::get<dxbc::RST0::v1::RootDescriptor>(*P);
+
+ support::endian::write(BOS, Descriptor.ShaderRegister,
llvm::endianness::little);
- support::endian::write(BOS, P.Descriptor.RegisterSpace,
+ support::endian::write(BOS, Descriptor.RegisterSpace,
llvm::endianness::little);
- if (Version > 1)
- support::endian::write(BOS, P.Descriptor.Flags,
- llvm::endianness::little);
+ support::endian::write(BOS, Descriptor.Flags, llvm::endianness::little);
}
}
assert(Storage.size() == getSize());
diff --git a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
index 239ee9e3de9b1..3e58c2cd7497b 100644
--- a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
@@ -274,27 +274,31 @@ void DXContainerWriter::writeParts(raw_ostream &OS) {
RS.StaticSamplersOffset = P.RootSignature->StaticSamplersOffset;
for (const auto &Param : P.RootSignature->Parameters) {
- mcdxbc::RootParameter NewParam;
- NewParam.Header = dxbc::RootParameterHeader{
- Param.Type, Param.Visibility, Param.Offset};
+ auto Header = dxbc::RootParameterHeader{Param.Type, Param.Visibility,
+ Param.Offset};
switch (Param.Type) {
case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- NewParam.Constants.Num32BitValues = Param.Constants.Num32BitValues;
- NewParam.Constants.RegisterSpace = Param.Constants.RegisterSpace;
- NewParam.Constants.ShaderRegister = Param.Constants.ShaderRegister;
+ dxbc::RootConstants Constants;
+ Constants.Num32BitValues = Param.Constants.Num32BitValues;
+ Constants.RegisterSpace = Param.Constants.RegisterSpace;
+ Constants.ShaderRegister = Param.Constants.ShaderRegister;
+ RS.Parameters.addParameter(Header, Constants);
break;
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
case llvm::to_underlying(dxbc::RootParameterType::CBV):
- NewParam.Descriptor.RegisterSpace = Param.Descriptor.RegisterSpace;
- NewParam.Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
+ dxbc::RST0::v1::RootDescriptor Descriptor;
+ Descriptor.RegisterSpace = Param.Descriptor.RegisterSpace;
+ Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
if (P.RootSignature->Version > 1)
- NewParam.Descriptor.Flags = Param.Descriptor.getEncodedFlags();
+ Descriptor.Flags = Param.Descriptor.getEncodedFlags();
+ RS.Parameters.addParameter(Header, Descriptor);
break;
+ default:
+ // Handling invalid parameter type edge case
+ RS.Parameters.addHeader(Header, -1);
}
-
- RS.Parameters.push_back(NewParam);
}
RS.write(OS);
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index ef299c17baf76..a2141aa1364ad 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -30,6 +30,7 @@
#include <cstdint>
#include <optional>
#include <utility>
+#include <variant>
using namespace llvm;
using namespace llvm::dxil;
@@ -75,31 +76,32 @@ static bool parseRootConstants(LLVMContext *Ctx,
mcdxbc::RootSignatureDesc &RSD,
if (RootConstantNode->getNumOperands() != 5)
return reportError(Ctx, "Invalid format for RootConstants Element");
- mcdxbc::RootParameter NewParameter;
- NewParameter.Header.ParameterType =
+ dxbc::RootParameterHeader Header;
+ Header.ParameterType =
llvm::to_underlying(dxbc::RootParameterType::Constants32Bit);
if (std::optional<uint32_t> Val = extractMdIntValue(RootConstantNode, 1))
- NewParameter.Header.ShaderVisibility = *Val;
+ Header.ShaderVisibility = *Val;
else
return reportError(Ctx, "Invalid value for ShaderVisibility");
+ dxbc::RootConstants Constants;
if (std::optional<uint32_t> Val = extractMdIntValue(RootConstantNode, 2))
- NewParameter.Constants.ShaderRegister = *Val;
+ Constants.ShaderRegister = *Val;
else
return reportError(Ctx, "Invalid value for ShaderRegister");
if (std::optional<uint32_t> Val = extractMdIntValue(RootConstantNode, 3))
- NewParameter.Constants.RegisterSpace = *Val;
+ Constants.RegisterSpace = *Val;
else
return reportError(Ctx, "Invalid value for RegisterSpace");
if (std::optional<uint32_t> Val = extractMdIntValue(RootConstantNode, 4))
- NewParameter.Constants.Num32BitValues = *Val;
+ Constants.Num32BitValues = *Val;
else
return reportError(Ctx, "Invalid value for Num32BitValues");
- RSD.Parameters.push_back(NewParameter);
+ RSD.Parameters.addParameter(Header, Constants);
return false;
}
@@ -164,12 +166,11 @@ static bool validate(LLVMContext *Ctx, const
mcdxbc::RootSignatureDesc &RSD) {
return reportValueError(Ctx, "RootFlags", RSD.Flags);
}
- for (const mcdxbc::RootParameter &P : RSD.Parameters) {
- if (!dxbc::isValidShaderVisibility(P.Header.ShaderVisibility))
- return reportValueError(Ctx, "ShaderVisibility",
- P.Header.ShaderVisibility);
+ for (const mcdxbc::RootParameterHeader &Header : RSD.Parameters.Headers) {
+ if (!dxbc::isValidShaderVisibility(Header.ShaderVisibility))
+ return reportValueError(Ctx, "ShaderVisibility",
Header.ShaderVisibility);
- assert(dxbc::isValidParameterType(P.Header.ParameterType) &&
+ assert(dxbc::isValidParameterType(Header.ParameterType) &&
"Invalid value for ParameterType");
}
@@ -289,20 +290,20 @@ PreservedAnalyses
RootSignatureAnalysisPrinter::run(Module &M,
<< "\n";
OS << indent(Space) << "NumParameters: " << RS.Parameters.size() << "\n";
Space++;
- for (auto const &P : RS.Parameters) {
- OS << indent(Space) << "- Parameter Type: " << P.Header.ParameterType
+ for (auto const &Header : RS.Parameters.Headers) {
+ OS << indent(Space) << "- Parameter Type: " << Header.ParameterType
<< "\n";
OS << indent(Space + 2)
- << "Shader Visibility: " << P.Header.ShaderVisibility << "\n";
- switch (P.Header.ParameterType) {
- case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
+ << "Shader Visibility: " << Header.ShaderVisibility << "\n";
+ mcdxbc::ParametersView P = RS.Parameters.get(Header);
+ if (std::holds_alternative<dxbc::RootConstants>(P)) {
+ auto Constants = std::get<dxbc::RootConstants>(P);
+ OS << indent(Space + 2) << "Register Space: " <<
Constants.RegisterSpace
+ << "\n";
OS << indent(Space + 2)
- << "Register Space: " << P.Constants.RegisterSpace << "\n";
+ << "Shader Register: " << Constants.ShaderRegister << "\n";
OS << indent(Space + 2)
- << "Shader Register: " << P.Constants.ShaderRegister << "\n";
- OS << indent(Space + 2)
- << "Num 32 Bit Values: " << P.Constants.Num32BitValues << "\n";
- break;
+ << "Num 32 Bit Values: " << Constants.Num32BitValues << "\n";
}
}
Space--;
>From 9a7c359fd5ce3621647e35f4656b0ae5e46abf2e Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Mon, 28 Apr 2025 18:12:28 +0000
Subject: [PATCH 2/6] changing name
---
.../llvm/MC/DXContainerRootSignature.h | 111 +++++-------------
llvm/lib/MC/DXContainerRootSignature.cpp | 27 +++--
llvm/lib/ObjectYAML/DXContainerEmitter.cpp | 19 +--
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 29 +++--
4 files changed, 74 insertions(+), 112 deletions(-)
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
index e1f4abbcebf8f..2ac79f4c454d8 100644
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -11,6 +11,7 @@
#include "llvm/Support/ErrorHandling.h"
#include <cstddef>
#include <cstdint>
+#include <optional>
#include <variant>
namespace llvm {
@@ -18,14 +19,14 @@ namespace llvm {
class raw_ostream;
namespace mcdxbc {
-struct RootParameterHeader : public dxbc::RootParameterHeader {
-
+struct RootParameterInfo {
+ dxbc::RootParameterHeader Header;
size_t Location;
- RootParameterHeader() = default;
+ RootParameterInfo() = default;
- RootParameterHeader(dxbc::RootParameterHeader H, size_t L)
- : dxbc::RootParameterHeader(H), Location(L) {}
+ RootParameterInfo(dxbc::RootParameterHeader H, size_t L)
+ : Header(H), Location(L) {}
};
using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor,
@@ -33,117 +34,61 @@ using RootDescriptor =
std::variant<dxbc::RST0::v0::RootDescriptor,
using ParametersView =
std::variant<dxbc::RootConstants, dxbc::RST0::v0::RootDescriptor,
dxbc::RST0::v1::RootDescriptor>;
-struct RootParameter {
- SmallVector<RootParameterHeader> Headers;
+struct RootParametersContainer {
+ SmallVector<RootParameterInfo> ParametersInfo;
SmallVector<dxbc::RootConstants> Constants;
SmallVector<RootDescriptor> Descriptors;
- void addHeader(dxbc::RootParameterHeader H, size_t L) {
- Headers.push_back(RootParameterHeader(H, L));
+ void addInfo(dxbc::RootParameterHeader H, size_t L) {
+ ParametersInfo.push_back(RootParameterInfo(H, L));
}
void addParameter(dxbc::RootParameterHeader H, dxbc::RootConstants C) {
- addHeader(H, Constants.size());
+ addInfo(H, Constants.size());
Constants.push_back(C);
}
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v0::RootDescriptor D) {
- addHeader(H, Descriptors.size());
+ addInfo(H, Descriptors.size());
Descriptors.push_back(D);
}
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v1::RootDescriptor D) {
- addHeader(H, Descriptors.size());
+ addInfo(H, Descriptors.size());
Descriptors.push_back(D);
}
- ParametersView get(const RootParameterHeader &H) const {
- switch (H.ParameterType) {
+ std::optional<ParametersView> getParameter(const RootParameterInfo *H) const
{
+ switch (H->Header.ParameterType) {
case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- return Constants[H.Location];
+ return Constants[H->Location];
case llvm::to_underlying(dxbc::RootParameterType::CBV):
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
- RootDescriptor VersionedParam = Descriptors[H.Location];
+ RootDescriptor VersionedParam = Descriptors[H->Location];
if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
VersionedParam))
return std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
return std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
}
- llvm_unreachable("Unimplemented parameter type");
+ return std::nullopt;
}
- struct iterator {
- const RootParameter &Parameters;
- SmallVector<RootParameterHeader>::const_iterator Current;
-
- // Changed parameter type to match member variable (removed const)
- iterator(const RootParameter &P,
- SmallVector<RootParameterHeader>::const_iterator C)
- : Parameters(P), Current(C) {}
- iterator(const iterator &) = default;
-
- ParametersView operator*() {
- ParametersView Val;
- switch (Current->ParameterType) {
- case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- Val = Parameters.Constants[Current->Location];
- break;
-
- case llvm::to_underlying(dxbc::RootParameterType::CBV):
- case llvm::to_underlying(dxbc::RootParameterType::SRV):
- case llvm::to_underlying(dxbc::RootParameterType::UAV):
- RootDescriptor VersionedParam =
- Parameters.Descriptors[Current->Location];
- if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
- VersionedParam))
- Val = std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
- else
- Val = std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
- break;
- }
- return Val;
- }
-
- iterator operator++() {
- Current++;
- return *this;
- }
-
- iterator operator++(int) {
- iterator Tmp = *this;
- ++*this;
- return Tmp;
- }
-
- iterator operator--() {
- Current--;
- return *this;
- }
-
- iterator operator--(int) {
- iterator Tmp = *this;
- --*this;
- return Tmp;
- }
-
- bool operator==(const iterator I) { return I.Current == Current; }
- bool operator!=(const iterator I) { return !(*this == I); }
- };
-
- iterator begin() const { return iterator(*this, Headers.begin()); }
+ size_t size() const { return ParametersInfo.size(); }
- iterator end() const { return iterator(*this, Headers.end()); }
-
- size_t size() const { return Headers.size(); }
-
- bool isEmpty() const { return Headers.empty(); }
+ SmallVector<RootParameterInfo>::const_iterator begin() const {
+ return ParametersInfo.begin();
+ }
+ SmallVector<RootParameterInfo>::const_iterator end() const {
+ return ParametersInfo.end();
+ }
- llvm::iterator_range<RootParameter::iterator> getAll() const {
+ llvm::iterator_range<SmallVector<RootParameterInfo>::const_iterator>
+ getInfo() const {
return llvm::make_range(begin(), end());
}
};
@@ -154,7 +99,7 @@ struct RootSignatureDesc {
uint32_t RootParameterOffset = 0U;
uint32_t StaticSamplersOffset = 0u;
uint32_t NumStaticSamplers = 0u;
- mcdxbc::RootParameter Parameters;
+ mcdxbc::RootParametersContainer ParametersContainer;
void write(raw_ostream &OS) const;
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
index 18242ccc1e935..6cc8a9167bf40 100644
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -32,15 +32,18 @@ static void rewriteOffsetToCurrentByte(raw_svector_ostream
&Stream,
size_t RootSignatureDesc::getSize() const {
size_t Size = sizeof(dxbc::RootSignatureHeader) +
- Parameters.size() * sizeof(dxbc::RootParameterHeader);
+ ParametersContainer.size() * sizeof(dxbc::RootParameterHeader);
- for (const auto &P : Parameters) {
+ for (const auto &I : ParametersContainer) {
+ std::optional<ParametersView> P = ParametersContainer.getParameter(&I);
+ if (!P)
+ continue;
std::visit(
[&Size](auto &Value) -> void {
using T = std::decay_t<decltype(Value)>;
Size += sizeof(T);
},
- P);
+ *P);
}
return Size;
@@ -51,7 +54,7 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
raw_svector_ostream BOS(Storage);
BOS.reserveExtraSpace(getSize());
- const uint32_t NumParameters = Parameters.size();
+ const uint32_t NumParameters = ParametersContainer.size();
support::endian::write(BOS, Version, llvm::endianness::little);
support::endian::write(BOS, NumParameters, llvm::endianness::little);
@@ -61,18 +64,22 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
support::endian::write(BOS, Flags, llvm::endianness::little);
SmallVector<uint32_t> ParamsOffsets;
- for (const auto &P : Parameters.Headers) {
- support::endian::write(BOS, P.ParameterType, llvm::endianness::little);
- support::endian::write(BOS, P.ShaderVisibility, llvm::endianness::little);
+ for (const auto &P : ParametersContainer) {
+ support::endian::write(BOS, P.Header.ParameterType,
+ llvm::endianness::little);
+ support::endian::write(BOS, P.Header.ShaderVisibility,
+ llvm::endianness::little);
ParamsOffsets.push_back(writePlaceholder(BOS));
}
assert(NumParameters == ParamsOffsets.size());
- auto P = Parameters.begin();
- for (size_t I = 0; I < NumParameters; ++I, P++) {
+ const RootParameterInfo *H = ParametersContainer.begin();
+ for (size_t I = 0; I < NumParameters; ++I, H++) {
rewriteOffsetToCurrentByte(BOS, ParamsOffsets[I]);
-
+ auto P = ParametersContainer.getParameter(H);
+ if (!P)
+ continue;
if (std::holds_alternative<dxbc::RootConstants>(*P)) {
auto Constants = std::get<dxbc::RootConstants>(*P);
support::endian::write(BOS, Constants.ShaderRegister,
diff --git a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
index 3e58c2cd7497b..381fe41d8b01c 100644
--- a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
@@ -283,21 +283,26 @@ void DXContainerWriter::writeParts(raw_ostream &OS) {
Constants.Num32BitValues = Param.Constants.Num32BitValues;
Constants.RegisterSpace = Param.Constants.RegisterSpace;
Constants.ShaderRegister = Param.Constants.ShaderRegister;
- RS.Parameters.addParameter(Header, Constants);
+ RS.ParametersContainer.addParameter(Header, Constants);
break;
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
case llvm::to_underlying(dxbc::RootParameterType::CBV):
- dxbc::RST0::v1::RootDescriptor Descriptor;
- Descriptor.RegisterSpace = Param.Descriptor.RegisterSpace;
- Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
- if (P.RootSignature->Version > 1)
+ if (RS.Version == 1) {
+ dxbc::RST0::v0::RootDescriptor Descriptor;
+ Descriptor.RegisterSpace = Param.Descriptor.RegisterSpace;
+ Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
+ RS.ParametersContainer.addParameter(Header, Descriptor);
+ } else {
+ dxbc::RST0::v1::RootDescriptor Descriptor;
+ Descriptor.RegisterSpace = Param.Descriptor.RegisterSpace;
+ Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
Descriptor.Flags = Param.Descriptor.getEncodedFlags();
- RS.Parameters.addParameter(Header, Descriptor);
+ RS.ParametersContainer.addParameter(Header, Descriptor);
break;
default:
// Handling invalid parameter type edge case
- RS.Parameters.addHeader(Header, -1);
+ RS.ParametersContainer.addInfo(Header, -1);
}
}
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index a2141aa1364ad..40dcff3999b8f 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -101,7 +101,7 @@ static bool parseRootConstants(LLVMContext *Ctx,
mcdxbc::RootSignatureDesc &RSD,
else
return reportError(Ctx, "Invalid value for Num32BitValues");
- RSD.Parameters.addParameter(Header, Constants);
+ RSD.ParametersContainer.addParameter(Header, Constants);
return false;
}
@@ -166,11 +166,12 @@ static bool validate(LLVMContext *Ctx, const
mcdxbc::RootSignatureDesc &RSD) {
return reportValueError(Ctx, "RootFlags", RSD.Flags);
}
- for (const mcdxbc::RootParameterHeader &Header : RSD.Parameters.Headers) {
- if (!dxbc::isValidShaderVisibility(Header.ShaderVisibility))
- return reportValueError(Ctx, "ShaderVisibility",
Header.ShaderVisibility);
+ for (const llvm::mcdxbc::RootParameterInfo &Info : RSD.ParametersContainer) {
+ if (!dxbc::isValidShaderVisibility(Info.Header.ShaderVisibility))
+ return reportValueError(Ctx, "ShaderVisibility",
+ Info.Header.ShaderVisibility);
- assert(dxbc::isValidParameterType(Header.ParameterType) &&
+ assert(dxbc::isValidParameterType(Info.Header.ParameterType) &&
"Invalid value for ParameterType");
}
@@ -288,16 +289,20 @@ PreservedAnalyses
RootSignatureAnalysisPrinter::run(Module &M,
OS << indent(Space) << "Version: " << RS.Version << "\n";
OS << indent(Space) << "RootParametersOffset: " << RS.RootParameterOffset
<< "\n";
- OS << indent(Space) << "NumParameters: " << RS.Parameters.size() << "\n";
+ OS << indent(Space) << "NumParameters: " << RS.ParametersContainer.size()
+ << "\n";
Space++;
- for (auto const &Header : RS.Parameters.Headers) {
- OS << indent(Space) << "- Parameter Type: " << Header.ParameterType
+ for (auto const &Info : RS.ParametersContainer) {
+ OS << indent(Space) << "- Parameter Type: " << Info.Header.ParameterType
<< "\n";
OS << indent(Space + 2)
- << "Shader Visibility: " << Header.ShaderVisibility << "\n";
- mcdxbc::ParametersView P = RS.Parameters.get(Header);
- if (std::holds_alternative<dxbc::RootConstants>(P)) {
- auto Constants = std::get<dxbc::RootConstants>(P);
+ << "Shader Visibility: " << Info.Header.ShaderVisibility << "\n";
+ std::optional<mcdxbc::ParametersView> P =
+ RS.ParametersContainer.getParameter(&Info);
+ if (!P)
+ continue;
+ if (std::holds_alternative<dxbc::RootConstants>(*P)) {
+ auto Constants = std::get<dxbc::RootConstants>(*P);
OS << indent(Space + 2) << "Register Space: " <<
Constants.RegisterSpace
<< "\n";
OS << indent(Space + 2)
>From d6c2b5583d3c13dcc96a5d5b36a8ac5741d8f6ce Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Mon, 28 Apr 2025 22:29:53 +0000
Subject: [PATCH 3/6] changing variant to host pointers
---
.../llvm/MC/DXContainerRootSignature.h | 22 +++++++-------
llvm/lib/MC/DXContainerRootSignature.cpp | 30 +++++++++----------
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 10 +++----
3 files changed, 31 insertions(+), 31 deletions(-)
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
index 2ac79f4c454d8..33680c90d595f 100644
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -8,10 +8,10 @@
#include "llvm/ADT/STLForwardCompat.h"
#include "llvm/BinaryFormat/DXContainer.h"
-#include "llvm/Support/ErrorHandling.h"
#include <cstddef>
#include <cstdint>
#include <optional>
+#include <utility>
#include <variant>
namespace llvm {
@@ -29,11 +29,11 @@ struct RootParameterInfo {
: Header(H), Location(L) {}
};
-using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor,
- dxbc::RST0::v1::RootDescriptor>;
+using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor*,
+ dxbc::RST0::v1::RootDescriptor*>;
using ParametersView =
- std::variant<dxbc::RootConstants, dxbc::RST0::v0::RootDescriptor,
- dxbc::RST0::v1::RootDescriptor>;
+ std::variant<const dxbc::RootConstants*, const
dxbc::RST0::v0::RootDescriptor*,
+ const dxbc::RST0::v1::RootDescriptor*>;
struct RootParametersContainer {
SmallVector<RootParameterInfo> ParametersInfo;
@@ -52,27 +52,27 @@ struct RootParametersContainer {
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v0::RootDescriptor D) {
addInfo(H, Descriptors.size());
- Descriptors.push_back(D);
+ Descriptors.push_back(std::move(&D));
}
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v1::RootDescriptor D) {
addInfo(H, Descriptors.size());
- Descriptors.push_back(D);
+ Descriptors.push_back(std::move(&D));
}
std::optional<ParametersView> getParameter(const RootParameterInfo *H) const
{
switch (H->Header.ParameterType) {
case llvm::to_underlying(dxbc::RootParameterType::Constants32Bit):
- return Constants[H->Location];
+ return &Constants[H->Location];
case llvm::to_underlying(dxbc::RootParameterType::CBV):
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
RootDescriptor VersionedParam = Descriptors[H->Location];
- if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
+ if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor*>(
VersionedParam))
- return std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
- return std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
+ return std::get<dxbc::RST0::v0::RootDescriptor*>(VersionedParam);
+ return std::get<dxbc::RST0::v1::RootDescriptor*>(VersionedParam);
}
return std::nullopt;
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
index 6cc8a9167bf40..c3a535592b78f 100644
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -40,7 +40,7 @@ size_t RootSignatureDesc::getSize() const {
continue;
std::visit(
[&Size](auto &Value) -> void {
- using T = std::decay_t<decltype(Value)>;
+ using T = std::decay_t<decltype(*Value)>;
Size += sizeof(T);
},
*P);
@@ -80,28 +80,28 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
auto P = ParametersContainer.getParameter(H);
if (!P)
continue;
- if (std::holds_alternative<dxbc::RootConstants>(*P)) {
- auto Constants = std::get<dxbc::RootConstants>(*P);
- support::endian::write(BOS, Constants.ShaderRegister,
+ if (std::holds_alternative<const dxbc::RootConstants*>(*P)) {
+ auto* Constants = std::get<const dxbc::RootConstants*>(*P);
+ support::endian::write(BOS, Constants->ShaderRegister,
llvm::endianness::little);
- support::endian::write(BOS, Constants.RegisterSpace,
+ support::endian::write(BOS, Constants->RegisterSpace,
llvm::endianness::little);
- support::endian::write(BOS, Constants.Num32BitValues,
+ support::endian::write(BOS, Constants->Num32BitValues,
llvm::endianness::little);
- } else if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(*P)) {
- auto Descriptor = std::get<dxbc::RST0::v0::RootDescriptor>(*P);
- support::endian::write(BOS, Descriptor.ShaderRegister,
+ } else if (std::holds_alternative<const
dxbc::RST0::v0::RootDescriptor*>(*P)) {
+ auto* Descriptor = std::get<const dxbc::RST0::v0::RootDescriptor*>(*P);
+ support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
- support::endian::write(BOS, Descriptor.RegisterSpace,
+ support::endian::write(BOS, Descriptor->RegisterSpace,
llvm::endianness::little);
- } else if (std::holds_alternative<dxbc::RST0::v1::RootDescriptor>(*P)) {
- auto Descriptor = std::get<dxbc::RST0::v1::RootDescriptor>(*P);
+ } else if (std::holds_alternative<const
dxbc::RST0::v1::RootDescriptor*>(*P)) {
+ auto* Descriptor = std::get<const dxbc::RST0::v1::RootDescriptor*>(*P);
- support::endian::write(BOS, Descriptor.ShaderRegister,
+ support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
- support::endian::write(BOS, Descriptor.RegisterSpace,
+ support::endian::write(BOS, Descriptor->RegisterSpace,
llvm::endianness::little);
- support::endian::write(BOS, Descriptor.Flags, llvm::endianness::little);
+ support::endian::write(BOS, Descriptor->Flags, llvm::endianness::little);
}
}
assert(Storage.size() == getSize());
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index 40dcff3999b8f..4e5d44f30e908 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -301,14 +301,14 @@ PreservedAnalyses
RootSignatureAnalysisPrinter::run(Module &M,
RS.ParametersContainer.getParameter(&Info);
if (!P)
continue;
- if (std::holds_alternative<dxbc::RootConstants>(*P)) {
- auto Constants = std::get<dxbc::RootConstants>(*P);
- OS << indent(Space + 2) << "Register Space: " <<
Constants.RegisterSpace
+ if (std::holds_alternative<const dxbc::RootConstants*>(*P)) {
+ auto* Constants = std::get<const dxbc::RootConstants*>(*P);
+ OS << indent(Space + 2) << "Register Space: " <<
Constants->RegisterSpace
<< "\n";
OS << indent(Space + 2)
- << "Shader Register: " << Constants.ShaderRegister << "\n";
+ << "Shader Register: " << Constants->ShaderRegister << "\n";
OS << indent(Space + 2)
- << "Num 32 Bit Values: " << Constants.Num32BitValues << "\n";
+ << "Num 32 Bit Values: " << Constants->Num32BitValues << "\n";
}
}
Space--;
>From 93e4cf299ba6898be9178f1c039eba052a8c9255 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Mon, 28 Apr 2025 22:39:36 +0000
Subject: [PATCH 4/6] clean up
---
.../llvm/MC/DXContainerRootSignature.h | 21 +++++++------------
llvm/lib/MC/DXContainerRootSignature.cpp | 14 +++++++------
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 8 +++----
3 files changed, 20 insertions(+), 23 deletions(-)
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
index 33680c90d595f..507204d5b2ba4 100644
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -29,11 +29,11 @@ struct RootParameterInfo {
: Header(H), Location(L) {}
};
-using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor*,
- dxbc::RST0::v1::RootDescriptor*>;
-using ParametersView =
- std::variant<const dxbc::RootConstants*, const
dxbc::RST0::v0::RootDescriptor*,
- const dxbc::RST0::v1::RootDescriptor*>;
+using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor *,
+ dxbc::RST0::v1::RootDescriptor *>;
+using ParametersView = std::variant<const dxbc::RootConstants *,
+ const dxbc::RST0::v0::RootDescriptor *,
+ const dxbc::RST0::v1::RootDescriptor *>;
struct RootParametersContainer {
SmallVector<RootParameterInfo> ParametersInfo;
@@ -69,10 +69,10 @@ struct RootParametersContainer {
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
RootDescriptor VersionedParam = Descriptors[H->Location];
- if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor*>(
+ if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor *>(
VersionedParam))
- return std::get<dxbc::RST0::v0::RootDescriptor*>(VersionedParam);
- return std::get<dxbc::RST0::v1::RootDescriptor*>(VersionedParam);
+ return std::get<dxbc::RST0::v0::RootDescriptor *>(VersionedParam);
+ return std::get<dxbc::RST0::v1::RootDescriptor *>(VersionedParam);
}
return std::nullopt;
@@ -86,11 +86,6 @@ struct RootParametersContainer {
SmallVector<RootParameterInfo>::const_iterator end() const {
return ParametersInfo.end();
}
-
- llvm::iterator_range<SmallVector<RootParameterInfo>::const_iterator>
- getInfo() const {
- return llvm::make_range(begin(), end());
- }
};
struct RootSignatureDesc {
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
index c3a535592b78f..252f864f6f4bd 100644
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -80,22 +80,24 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
auto P = ParametersContainer.getParameter(H);
if (!P)
continue;
- if (std::holds_alternative<const dxbc::RootConstants*>(*P)) {
- auto* Constants = std::get<const dxbc::RootConstants*>(*P);
+ if (std::holds_alternative<const dxbc::RootConstants *>(*P)) {
+ auto *Constants = std::get<const dxbc::RootConstants *>(*P);
support::endian::write(BOS, Constants->ShaderRegister,
llvm::endianness::little);
support::endian::write(BOS, Constants->RegisterSpace,
llvm::endianness::little);
support::endian::write(BOS, Constants->Num32BitValues,
llvm::endianness::little);
- } else if (std::holds_alternative<const
dxbc::RST0::v0::RootDescriptor*>(*P)) {
- auto* Descriptor = std::get<const dxbc::RST0::v0::RootDescriptor*>(*P);
+ } else if (std::holds_alternative<const dxbc::RST0::v0::RootDescriptor *>(
+ *P)) {
+ auto *Descriptor = std::get<const dxbc::RST0::v0::RootDescriptor *>(*P);
support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
support::endian::write(BOS, Descriptor->RegisterSpace,
llvm::endianness::little);
- } else if (std::holds_alternative<const
dxbc::RST0::v1::RootDescriptor*>(*P)) {
- auto* Descriptor = std::get<const dxbc::RST0::v1::RootDescriptor*>(*P);
+ } else if (std::holds_alternative<const dxbc::RST0::v1::RootDescriptor *>(
+ *P)) {
+ auto *Descriptor = std::get<const dxbc::RST0::v1::RootDescriptor *>(*P);
support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index 4e5d44f30e908..30ca4d8f7c8ed 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -301,10 +301,10 @@ PreservedAnalyses
RootSignatureAnalysisPrinter::run(Module &M,
RS.ParametersContainer.getParameter(&Info);
if (!P)
continue;
- if (std::holds_alternative<const dxbc::RootConstants*>(*P)) {
- auto* Constants = std::get<const dxbc::RootConstants*>(*P);
- OS << indent(Space + 2) << "Register Space: " <<
Constants->RegisterSpace
- << "\n";
+ if (std::holds_alternative<const dxbc::RootConstants *>(*P)) {
+ auto *Constants = std::get<const dxbc::RootConstants *>(*P);
+ OS << indent(Space + 2)
+ << "Register Space: " << Constants->RegisterSpace << "\n";
OS << indent(Space + 2)
<< "Shader Register: " << Constants->ShaderRegister << "\n";
OS << indent(Space + 2)
>From b45b1b611730589a9a378ea5a6b9e411fb959c84 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Mon, 28 Apr 2025 22:49:22 +0000
Subject: [PATCH 5/6] fix
---
llvm/lib/ObjectYAML/DXContainerEmitter.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
index 381fe41d8b01c..5f2e71ac2495e 100644
--- a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
@@ -305,6 +305,7 @@ void DXContainerWriter::writeParts(raw_ostream &OS) {
RS.ParametersContainer.addInfo(Header, -1);
}
}
+ }
RS.write(OS);
break;
>From f804a23d7a3f29149b7b8c88c68fa24bbb1b23a0 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Mon, 28 Apr 2025 23:49:45 +0000
Subject: [PATCH 6/6] fix
---
.../llvm/MC/DXContainerRootSignature.h | 19 ++++++++++---------
llvm/lib/MC/DXContainerRootSignature.cpp | 10 ++++++----
llvm/lib/ObjectYAML/DXContainerEmitter.cpp | 2 +-
3 files changed, 17 insertions(+), 14 deletions(-)
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
index 507204d5b2ba4..c8af613a57094 100644
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -29,8 +29,8 @@ struct RootParameterInfo {
: Header(H), Location(L) {}
};
-using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor *,
- dxbc::RST0::v1::RootDescriptor *>;
+using RootDescriptor = std::variant<dxbc::RST0::v0::RootDescriptor,
+ dxbc::RST0::v1::RootDescriptor>;
using ParametersView = std::variant<const dxbc::RootConstants *,
const dxbc::RST0::v0::RootDescriptor *,
const dxbc::RST0::v1::RootDescriptor *>;
@@ -52,13 +52,13 @@ struct RootParametersContainer {
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v0::RootDescriptor D) {
addInfo(H, Descriptors.size());
- Descriptors.push_back(std::move(&D));
+ Descriptors.push_back(D);
}
void addParameter(dxbc::RootParameterHeader H,
dxbc::RST0::v1::RootDescriptor D) {
addInfo(H, Descriptors.size());
- Descriptors.push_back(std::move(&D));
+ Descriptors.push_back(D);
}
std::optional<ParametersView> getParameter(const RootParameterInfo *H) const
{
@@ -68,11 +68,12 @@ struct RootParametersContainer {
case llvm::to_underlying(dxbc::RootParameterType::CBV):
case llvm::to_underlying(dxbc::RootParameterType::SRV):
case llvm::to_underlying(dxbc::RootParameterType::UAV):
- RootDescriptor VersionedParam = Descriptors[H->Location];
- if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor *>(
- VersionedParam))
- return std::get<dxbc::RST0::v0::RootDescriptor *>(VersionedParam);
- return std::get<dxbc::RST0::v1::RootDescriptor *>(VersionedParam);
+ const RootDescriptor &VersionedParam = Descriptors[H->Location];
+ if (std::holds_alternative<dxbc::RST0::v0::RootDescriptor>(
+ VersionedParam)) {
+ return &std::get<dxbc::RST0::v0::RootDescriptor>(VersionedParam);
+ }
+ return &std::get<dxbc::RST0::v1::RootDescriptor>(VersionedParam);
}
return std::nullopt;
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
index 252f864f6f4bd..641c2f5fa1b1b 100644
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -80,8 +80,8 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
auto P = ParametersContainer.getParameter(H);
if (!P)
continue;
- if (std::holds_alternative<const dxbc::RootConstants *>(*P)) {
- auto *Constants = std::get<const dxbc::RootConstants *>(*P);
+ if (std::holds_alternative<const dxbc::RootConstants *>(P.value())) {
+ auto *Constants = std::get<const dxbc::RootConstants *>(P.value());
support::endian::write(BOS, Constants->ShaderRegister,
llvm::endianness::little);
support::endian::write(BOS, Constants->RegisterSpace,
@@ -90,14 +90,16 @@ void RootSignatureDesc::write(raw_ostream &OS) const {
llvm::endianness::little);
} else if (std::holds_alternative<const dxbc::RST0::v0::RootDescriptor *>(
*P)) {
- auto *Descriptor = std::get<const dxbc::RST0::v0::RootDescriptor *>(*P);
+ auto *Descriptor =
+ std::get<const dxbc::RST0::v0::RootDescriptor *>(P.value());
support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
support::endian::write(BOS, Descriptor->RegisterSpace,
llvm::endianness::little);
} else if (std::holds_alternative<const dxbc::RST0::v1::RootDescriptor *>(
*P)) {
- auto *Descriptor = std::get<const dxbc::RST0::v1::RootDescriptor *>(*P);
+ auto *Descriptor =
+ std::get<const dxbc::RST0::v1::RootDescriptor *>(P.value());
support::endian::write(BOS, Descriptor->ShaderRegister,
llvm::endianness::little);
diff --git a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
index 5f2e71ac2495e..b8ea1b048edfe 100644
--- a/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerEmitter.cpp
@@ -299,13 +299,13 @@ void DXContainerWriter::writeParts(raw_ostream &OS) {
Descriptor.ShaderRegister = Param.Descriptor.ShaderRegister;
Descriptor.Flags = Param.Descriptor.getEncodedFlags();
RS.ParametersContainer.addParameter(Header, Descriptor);
+ }
break;
default:
// Handling invalid parameter type edge case
RS.ParametersContainer.addInfo(Header, -1);
}
}
- }
RS.write(OS);
break;
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