https://github.com/joaosaffran updated
https://github.com/llvm/llvm-project/pull/123147
>From 71f6d8b43db9c727e3892ff1e408d86f4150fc4e Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Wed, 15 Jan 2025 17:30:00 +0000
Subject: [PATCH 1/6] adding metadata extraction
---
.../llvm/Analysis/DXILMetadataAnalysis.h | 3 +
.../llvm/MC/DXContainerRootSignature.h | 74 +++++++++++++++
llvm/lib/Analysis/DXILMetadataAnalysis.cpp | 89 +++++++++++++++++++
llvm/lib/MC/CMakeLists.txt | 1 +
llvm/lib/MC/DXContainerRootSignature.cpp | 36 ++++++++
.../lib/Target/DirectX/DXContainerGlobals.cpp | 24 +++++
6 files changed, 227 insertions(+)
create mode 100644 llvm/include/llvm/MC/DXContainerRootSignature.h
create mode 100644 llvm/lib/MC/DXContainerRootSignature.cpp
diff --git a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
index cb535ac14f1c61..f420244ba111a4 100644
--- a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
+++ b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
@@ -11,9 +11,11 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/PassManager.h"
+#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/Pass.h"
#include "llvm/Support/VersionTuple.h"
#include "llvm/TargetParser/Triple.h"
+#include <optional>
namespace llvm {
@@ -37,6 +39,7 @@ struct ModuleMetadataInfo {
Triple::EnvironmentType ShaderProfile{Triple::UnknownEnvironment};
VersionTuple ValidatorVersion{};
SmallVector<EntryProperties> EntryPropertyVec{};
+ std::optional<mcdxbc::RootSignatureDesc> RootSignatureDesc;
void print(raw_ostream &OS) const;
};
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
new file mode 100644
index 00000000000000..e5abbf3009464e
--- /dev/null
+++ b/llvm/include/llvm/MC/DXContainerRootSignature.h
@@ -0,0 +1,74 @@
+//===- DXILRootSignature.h - DXIL Root Signature helper objects
-----------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains helper objects for working with DXIL Root
+/// Signatures.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DIRECTX_HLSLROOTSIGNATURE_H
+#define LLVM_DIRECTX_HLSLROOTSIGNATURE_H
+
+#include "llvm/IR/Metadata.h"
+#include <memory>
+
+namespace llvm {
+namespace mcdxbc {
+
+enum class RootSignatureElementKind {
+ None = 0,
+ RootFlags = 1,
+ RootConstants = 2,
+ RootDescriptor = 3,
+ DescriptorTable = 4,
+ StaticSampler = 5
+};
+
+enum RootSignatureFlags : uint32_t {
+ None = 0,
+ AllowInputAssemblerInputLayout = 0x1,
+ DenyVertexShaderRootAccess = 0x2,
+ DenyHullShaderRootAccess = 0x4,
+ DenyDomainShaderRootAccess = 0x8,
+ DenyGeometryShaderRootAccess = 0x10,
+ DenyPixelShaderRootAccess = 0x20,
+ AllowStreamOutput = 0x40,
+ LocalRootSignature = 0x80,
+ DenyAmplificationShaderRootAccess = 0x100,
+ DenyMeshShaderRootAccess = 0x200,
+ CBVSRVUAVHeapDirectlyIndexed = 0x400,
+ SamplerHeapDirectlyIndexed = 0x800,
+ AllowLowTierReservedHwCbLimit = 0x80000000,
+ ValidFlags = 0x80000fff
+};
+
+struct RootSignatureDesc {
+ uint32_t Version;
+ RootSignatureFlags Flags;
+
+ void swapBytes() {
+ sys::swapByteOrder(Version);
+ sys::swapByteOrder(Flags);
+ }
+};
+
+class RootSignatureDescWriter {
+private:
+ RootSignatureDesc *Desc;
+
+public:
+ RootSignatureDescWriter(RootSignatureDesc *Desc) : Desc(Desc) {}
+
+ void write(raw_ostream &OS,
+ uint32_t Version = std::numeric_limits<uint32_t>::max());
+};
+
+} // namespace mcdxbc
+} // namespace llvm
+
+#endif // LLVM_DIRECTX_HLSLROOTSIGNATURE_H
diff --git a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
index a7f666a3f8b48f..388e3853008eae 100644
--- a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
+++ b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
@@ -15,12 +15,91 @@
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
+#include "llvm/MC/DXContainerRootSignature.h"
+#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
+#include <memory>
#define DEBUG_TYPE "dxil-metadata-analysis"
using namespace llvm;
using namespace dxil;
+using namespace llvm::mcdxbc;
+
+static bool parseRootFlags(MDNode *RootFlagNode, RootSignatureDesc *Desc) {
+
+ assert(RootFlagNode->getNumOperands() == 2 &&
+ "Invalid format for RootFlag Element");
+ auto *Flag = mdconst::extract<ConstantInt>(RootFlagNode->getOperand(1));
+ auto Value = (RootSignatureFlags)Flag->getZExtValue();
+
+ if ((Value & ~RootSignatureFlags::ValidFlags) != RootSignatureFlags::None)
+ return true;
+
+ Desc->Flags = Value;
+ return false;
+}
+
+static bool parseRootSignatureElement(MDNode *Element,
+ RootSignatureDesc *Desc) {
+ MDString *ElementText = cast<MDString>(Element->getOperand(0));
+
+ assert(ElementText != nullptr && "First preoperty of element is not ");
+
+ RootSignatureElementKind ElementKind =
+ StringSwitch<RootSignatureElementKind>(ElementText->getString())
+ .Case("RootFlags", RootSignatureElementKind::RootFlags)
+ .Case("RootConstants", RootSignatureElementKind::RootConstants)
+ .Case("RootCBV", RootSignatureElementKind::RootDescriptor)
+ .Case("RootSRV", RootSignatureElementKind::RootDescriptor)
+ .Case("RootUAV", RootSignatureElementKind::RootDescriptor)
+ .Case("Sampler", RootSignatureElementKind::RootDescriptor)
+ .Case("DescriptorTable", RootSignatureElementKind::DescriptorTable)
+ .Case("StaticSampler", RootSignatureElementKind::StaticSampler)
+ .Default(RootSignatureElementKind::None);
+
+ switch (ElementKind) {
+
+ case RootSignatureElementKind::RootFlags: {
+ return parseRootFlags(Element, Desc);
+ break;
+ }
+
+ case RootSignatureElementKind::RootConstants:
+ case RootSignatureElementKind::RootDescriptor:
+ case RootSignatureElementKind::DescriptorTable:
+ case RootSignatureElementKind::StaticSampler:
+ case RootSignatureElementKind::None:
+ llvm_unreachable("Not Implemented yet");
+ break;
+ }
+
+ return true;
+}
+
+bool parseRootSignature(RootSignatureDesc *Desc, int32_t Version,
+ NamedMDNode *Root) {
+ Desc->Version = Version;
+ bool HasError = false;
+
+ for (unsigned int Sid = 0; Sid < Root->getNumOperands(); Sid++) {
+ // This should be an if, for error handling
+ MDNode *Node = cast<MDNode>(Root->getOperand(Sid));
+
+ // Not sure what use this for...
+ Metadata *Func = Node->getOperand(0).get();
+
+ // This should be an if, for error handling
+ MDNode *Elements = cast<MDNode>(Node->getOperand(1).get());
+
+ for (unsigned int Eid = 0; Eid < Elements->getNumOperands(); Eid++) {
+ MDNode *Element = cast<MDNode>(Elements->getOperand(Eid));
+
+ HasError = HasError || parseRootSignatureElement(Element, Desc);
+ }
+ }
+ return HasError;
+}
static ModuleMetadataInfo collectMetadataInfo(Module &M) {
ModuleMetadataInfo MMDAI;
@@ -28,6 +107,7 @@ static ModuleMetadataInfo collectMetadataInfo(Module &M) {
MMDAI.DXILVersion = TT.getDXILVersion();
MMDAI.ShaderModelVersion = TT.getOSVersion();
MMDAI.ShaderProfile = TT.getEnvironment();
+
NamedMDNode *ValidatorVerNode = M.getNamedMetadata("dx.valver");
if (ValidatorVerNode) {
auto *ValVerMD = cast<MDNode>(ValidatorVerNode->getOperand(0));
@@ -37,6 +117,15 @@ static ModuleMetadataInfo collectMetadataInfo(Module &M) {
VersionTuple(MajorMD->getZExtValue(), MinorMD->getZExtValue());
}
+ NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
+ if (RootSignatureNode) {
+ mcdxbc::RootSignatureDesc Desc;
+
+ parseRootSignature(&Desc, 1, RootSignatureNode);
+
+ MMDAI.RootSignatureDesc = Desc;
+ }
+
// For all HLSL Shader functions
for (auto &F : M.functions()) {
if (!F.hasFnAttribute("hlsl.shader"))
diff --git a/llvm/lib/MC/CMakeLists.txt b/llvm/lib/MC/CMakeLists.txt
index e1d19196c8766a..f49f14c848b902 100644
--- a/llvm/lib/MC/CMakeLists.txt
+++ b/llvm/lib/MC/CMakeLists.txt
@@ -1,6 +1,7 @@
add_llvm_component_library(LLVMMC
ConstantPools.cpp
DXContainerPSVInfo.cpp
+ DXContainerRootSignature.cpp
ELFObjectWriter.cpp
GOFFObjectWriter.cpp
MCAsmBackend.cpp
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
new file mode 100644
index 00000000000000..120f0f63c196f6
--- /dev/null
+++ b/llvm/lib/MC/DXContainerRootSignature.cpp
@@ -0,0 +1,36 @@
+//===- DXContainerRootSignature.cpp - DXIL Root Signature helper objects
+//-----------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains the parsing logic to extract root signature data
+/// from LLVM IR metadata.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/DXContainerRootSignature.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/BinaryFormat/DXContainer.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/SwapByteOrder.h"
+#include <cassert>
+#include <cstdint>
+
+using namespace llvm;
+using namespace llvm::mcdxbc;
+
+void RootSignatureDescWriter::write(raw_ostream &OS, uint32_t Version) {
+ dxbc::RootSignatureDesc Out{Desc->Version, Desc->Flags};
+
+ if (sys::IsBigEndianHost) {
+ Out.swapBytes();
+ }
+
+ OS.write(reinterpret_cast<const char *>(&Out), sizeof(RootSignatureDesc));
+}
diff --git a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
index 7a0bd6a7c88692..7ab11ce757e436 100644
--- a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
+++ b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
@@ -23,9 +23,11 @@
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/DXContainerPSVInfo.h"
+#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/Pass.h"
#include "llvm/Support/MD5.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
+#include <optional>
using namespace llvm;
using namespace llvm::dxil;
@@ -41,6 +43,7 @@ class DXContainerGlobals : public llvm::ModulePass {
GlobalVariable *buildSignature(Module &M, Signature &Sig, StringRef Name,
StringRef SectionName);
void addSignature(Module &M, SmallVector<GlobalValue *> &Globals);
+ void addRootSignature(Module &M, SmallVector<GlobalValue *> &Globals);
void addResourcesForPSV(Module &M, PSVRuntimeInfo &PSV);
void addPipelineStateValidationInfo(Module &M,
SmallVector<GlobalValue *> &Globals);
@@ -73,6 +76,7 @@ bool DXContainerGlobals::runOnModule(Module &M) {
Globals.push_back(getFeatureFlags(M));
Globals.push_back(computeShaderHash(M));
addSignature(M, Globals);
+ addRootSignature(M, Globals);
addPipelineStateValidationInfo(M, Globals);
appendToCompilerUsed(M, Globals);
return true;
@@ -144,6 +148,26 @@ void DXContainerGlobals::addSignature(Module &M,
Globals.emplace_back(buildSignature(M, OutputSig, "dx.osg1", "OSG1"));
}
+void DXContainerGlobals::addRootSignature(Module &M,
+ SmallVector<GlobalValue *> &Globals)
{
+
+ std::optional<RootSignatureDesc> Desc =
+ getAnalysis<DXILMetadataAnalysisWrapperPass>()
+ .getModuleMetadata()
+ .RootSignatureDesc;
+ if (!Desc.has_value())
+ return;
+
+ SmallString<256> Data;
+ raw_svector_ostream OS(Data);
+ RootSignatureDescWriter writer(&Desc.value());
+ writer.write(OS);
+
+ Constant *Constant =
+ ConstantDataArray::getString(M.getContext(), Data, /*AddNull*/ false);
+ Globals.emplace_back(buildContainerGlobal(M, Constant, "dx.rts0", "RTS0"));
+}
+
void DXContainerGlobals::addResourcesForPSV(Module &M, PSVRuntimeInfo &PSV) {
const DXILBindingMap &DBM =
getAnalysis<DXILResourceBindingWrapperPass>().getBindingMap();
>From 4077aaeac856d14fae198da16bd261232668fc6b Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Thu, 16 Jan 2025 00:36:11 +0000
Subject: [PATCH 2/6] moving root signature to it's own pass
---
.../llvm/Analysis/DXILMetadataAnalysis.h | 2 -
.../llvm/MC/DXContainerRootSignature.h | 74 ---------
llvm/lib/Analysis/DXILMetadataAnalysis.cpp | 84 ----------
llvm/lib/MC/CMakeLists.txt | 1 -
llvm/lib/MC/DXContainerRootSignature.cpp | 36 -----
llvm/lib/Target/DirectX/CMakeLists.txt | 2 +-
.../lib/Target/DirectX/DXContainerGlobals.cpp | 15 +-
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 146 ++++++++++++++++++
llvm/lib/Target/DirectX/DXILRootSignature.h | 75 +++++++++
llvm/lib/Target/DirectX/DirectX.h | 3 +
.../Target/DirectX/DirectXTargetMachine.cpp | 1 +
.../ContainerData/RootSignature-Flags.ll | 38 +++++
12 files changed, 271 insertions(+), 206 deletions(-)
delete mode 100644 llvm/include/llvm/MC/DXContainerRootSignature.h
delete mode 100644 llvm/lib/MC/DXContainerRootSignature.cpp
create mode 100644 llvm/lib/Target/DirectX/DXILRootSignature.cpp
create mode 100644 llvm/lib/Target/DirectX/DXILRootSignature.h
create mode 100644
llvm/test/CodeGen/DirectX/ContainerData/RootSignature-Flags.ll
diff --git a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
index f420244ba111a4..dcc3237f57802f 100644
--- a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
+++ b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
@@ -11,7 +11,6 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/PassManager.h"
-#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/Pass.h"
#include "llvm/Support/VersionTuple.h"
#include "llvm/TargetParser/Triple.h"
@@ -39,7 +38,6 @@ struct ModuleMetadataInfo {
Triple::EnvironmentType ShaderProfile{Triple::UnknownEnvironment};
VersionTuple ValidatorVersion{};
SmallVector<EntryProperties> EntryPropertyVec{};
- std::optional<mcdxbc::RootSignatureDesc> RootSignatureDesc;
void print(raw_ostream &OS) const;
};
diff --git a/llvm/include/llvm/MC/DXContainerRootSignature.h
b/llvm/include/llvm/MC/DXContainerRootSignature.h
deleted file mode 100644
index e5abbf3009464e..00000000000000
--- a/llvm/include/llvm/MC/DXContainerRootSignature.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//===- DXILRootSignature.h - DXIL Root Signature helper objects
-----------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file This file contains helper objects for working with DXIL Root
-/// Signatures.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_DIRECTX_HLSLROOTSIGNATURE_H
-#define LLVM_DIRECTX_HLSLROOTSIGNATURE_H
-
-#include "llvm/IR/Metadata.h"
-#include <memory>
-
-namespace llvm {
-namespace mcdxbc {
-
-enum class RootSignatureElementKind {
- None = 0,
- RootFlags = 1,
- RootConstants = 2,
- RootDescriptor = 3,
- DescriptorTable = 4,
- StaticSampler = 5
-};
-
-enum RootSignatureFlags : uint32_t {
- None = 0,
- AllowInputAssemblerInputLayout = 0x1,
- DenyVertexShaderRootAccess = 0x2,
- DenyHullShaderRootAccess = 0x4,
- DenyDomainShaderRootAccess = 0x8,
- DenyGeometryShaderRootAccess = 0x10,
- DenyPixelShaderRootAccess = 0x20,
- AllowStreamOutput = 0x40,
- LocalRootSignature = 0x80,
- DenyAmplificationShaderRootAccess = 0x100,
- DenyMeshShaderRootAccess = 0x200,
- CBVSRVUAVHeapDirectlyIndexed = 0x400,
- SamplerHeapDirectlyIndexed = 0x800,
- AllowLowTierReservedHwCbLimit = 0x80000000,
- ValidFlags = 0x80000fff
-};
-
-struct RootSignatureDesc {
- uint32_t Version;
- RootSignatureFlags Flags;
-
- void swapBytes() {
- sys::swapByteOrder(Version);
- sys::swapByteOrder(Flags);
- }
-};
-
-class RootSignatureDescWriter {
-private:
- RootSignatureDesc *Desc;
-
-public:
- RootSignatureDescWriter(RootSignatureDesc *Desc) : Desc(Desc) {}
-
- void write(raw_ostream &OS,
- uint32_t Version = std::numeric_limits<uint32_t>::max());
-};
-
-} // namespace mcdxbc
-} // namespace llvm
-
-#endif // LLVM_DIRECTX_HLSLROOTSIGNATURE_H
diff --git a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
index 388e3853008eae..15e72bf17515b1 100644
--- a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
+++ b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
@@ -15,7 +15,6 @@
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
-#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include <memory>
@@ -24,82 +23,8 @@
using namespace llvm;
using namespace dxil;
-using namespace llvm::mcdxbc;
-static bool parseRootFlags(MDNode *RootFlagNode, RootSignatureDesc *Desc) {
- assert(RootFlagNode->getNumOperands() == 2 &&
- "Invalid format for RootFlag Element");
- auto *Flag = mdconst::extract<ConstantInt>(RootFlagNode->getOperand(1));
- auto Value = (RootSignatureFlags)Flag->getZExtValue();
-
- if ((Value & ~RootSignatureFlags::ValidFlags) != RootSignatureFlags::None)
- return true;
-
- Desc->Flags = Value;
- return false;
-}
-
-static bool parseRootSignatureElement(MDNode *Element,
- RootSignatureDesc *Desc) {
- MDString *ElementText = cast<MDString>(Element->getOperand(0));
-
- assert(ElementText != nullptr && "First preoperty of element is not ");
-
- RootSignatureElementKind ElementKind =
- StringSwitch<RootSignatureElementKind>(ElementText->getString())
- .Case("RootFlags", RootSignatureElementKind::RootFlags)
- .Case("RootConstants", RootSignatureElementKind::RootConstants)
- .Case("RootCBV", RootSignatureElementKind::RootDescriptor)
- .Case("RootSRV", RootSignatureElementKind::RootDescriptor)
- .Case("RootUAV", RootSignatureElementKind::RootDescriptor)
- .Case("Sampler", RootSignatureElementKind::RootDescriptor)
- .Case("DescriptorTable", RootSignatureElementKind::DescriptorTable)
- .Case("StaticSampler", RootSignatureElementKind::StaticSampler)
- .Default(RootSignatureElementKind::None);
-
- switch (ElementKind) {
-
- case RootSignatureElementKind::RootFlags: {
- return parseRootFlags(Element, Desc);
- break;
- }
-
- case RootSignatureElementKind::RootConstants:
- case RootSignatureElementKind::RootDescriptor:
- case RootSignatureElementKind::DescriptorTable:
- case RootSignatureElementKind::StaticSampler:
- case RootSignatureElementKind::None:
- llvm_unreachable("Not Implemented yet");
- break;
- }
-
- return true;
-}
-
-bool parseRootSignature(RootSignatureDesc *Desc, int32_t Version,
- NamedMDNode *Root) {
- Desc->Version = Version;
- bool HasError = false;
-
- for (unsigned int Sid = 0; Sid < Root->getNumOperands(); Sid++) {
- // This should be an if, for error handling
- MDNode *Node = cast<MDNode>(Root->getOperand(Sid));
-
- // Not sure what use this for...
- Metadata *Func = Node->getOperand(0).get();
-
- // This should be an if, for error handling
- MDNode *Elements = cast<MDNode>(Node->getOperand(1).get());
-
- for (unsigned int Eid = 0; Eid < Elements->getNumOperands(); Eid++) {
- MDNode *Element = cast<MDNode>(Elements->getOperand(Eid));
-
- HasError = HasError || parseRootSignatureElement(Element, Desc);
- }
- }
- return HasError;
-}
static ModuleMetadataInfo collectMetadataInfo(Module &M) {
ModuleMetadataInfo MMDAI;
@@ -117,15 +42,6 @@ static ModuleMetadataInfo collectMetadataInfo(Module &M) {
VersionTuple(MajorMD->getZExtValue(), MinorMD->getZExtValue());
}
- NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
- if (RootSignatureNode) {
- mcdxbc::RootSignatureDesc Desc;
-
- parseRootSignature(&Desc, 1, RootSignatureNode);
-
- MMDAI.RootSignatureDesc = Desc;
- }
-
// For all HLSL Shader functions
for (auto &F : M.functions()) {
if (!F.hasFnAttribute("hlsl.shader"))
diff --git a/llvm/lib/MC/CMakeLists.txt b/llvm/lib/MC/CMakeLists.txt
index f49f14c848b902..e1d19196c8766a 100644
--- a/llvm/lib/MC/CMakeLists.txt
+++ b/llvm/lib/MC/CMakeLists.txt
@@ -1,7 +1,6 @@
add_llvm_component_library(LLVMMC
ConstantPools.cpp
DXContainerPSVInfo.cpp
- DXContainerRootSignature.cpp
ELFObjectWriter.cpp
GOFFObjectWriter.cpp
MCAsmBackend.cpp
diff --git a/llvm/lib/MC/DXContainerRootSignature.cpp
b/llvm/lib/MC/DXContainerRootSignature.cpp
deleted file mode 100644
index 120f0f63c196f6..00000000000000
--- a/llvm/lib/MC/DXContainerRootSignature.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//===- DXContainerRootSignature.cpp - DXIL Root Signature helper objects
-//-----------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file This file contains the parsing logic to extract root signature data
-/// from LLVM IR metadata.
-///
-//===----------------------------------------------------------------------===//
-
-#include "llvm/MC/DXContainerRootSignature.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/BinaryFormat/DXContainer.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Metadata.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/SwapByteOrder.h"
-#include <cassert>
-#include <cstdint>
-
-using namespace llvm;
-using namespace llvm::mcdxbc;
-
-void RootSignatureDescWriter::write(raw_ostream &OS, uint32_t Version) {
- dxbc::RootSignatureDesc Out{Desc->Version, Desc->Flags};
-
- if (sys::IsBigEndianHost) {
- Out.swapBytes();
- }
-
- OS.write(reinterpret_cast<const char *>(&Out), sizeof(RootSignatureDesc));
-}
diff --git a/llvm/lib/Target/DirectX/CMakeLists.txt
b/llvm/lib/Target/DirectX/CMakeLists.txt
index 26315db891b577..89fe494dea71cc 100644
--- a/llvm/lib/Target/DirectX/CMakeLists.txt
+++ b/llvm/lib/Target/DirectX/CMakeLists.txt
@@ -33,7 +33,7 @@ add_llvm_target(DirectXCodeGen
DXILResourceAccess.cpp
DXILShaderFlags.cpp
DXILTranslateMetadata.cpp
-
+ DXILRootSignature.cpp
LINK_COMPONENTS
Analysis
AsmPrinter
diff --git a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
index 7ab11ce757e436..833a22a9b3e81e 100644
--- a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
+++ b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
@@ -11,6 +11,7 @@
//===----------------------------------------------------------------------===//
#include "DXILShaderFlags.h"
+#include "DXILRootSignature.h"
#include "DirectX.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
@@ -23,7 +24,6 @@
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/DXContainerPSVInfo.h"
-#include "llvm/MC/DXContainerRootSignature.h"
#include "llvm/Pass.h"
#include "llvm/Support/MD5.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
@@ -63,6 +63,7 @@ class DXContainerGlobals : public llvm::ModulePass {
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
AU.addRequired<ShaderFlagsAnalysisWrapper>();
+ AU.addRequired<RootSignatureAnalysisWrapper>();
AU.addRequired<DXILMetadataAnalysisWrapperPass>();
AU.addRequired<DXILResourceTypeWrapperPass>();
AU.addRequired<DXILResourceBindingWrapperPass>();
@@ -151,17 +152,15 @@ void DXContainerGlobals::addSignature(Module &M,
void DXContainerGlobals::addRootSignature(Module &M,
SmallVector<GlobalValue *> &Globals)
{
- std::optional<RootSignatureDesc> Desc =
- getAnalysis<DXILMetadataAnalysisWrapperPass>()
- .getModuleMetadata()
- .RootSignatureDesc;
- if (!Desc.has_value())
+ std::optional<ModuleRootSignature> MRS =
+ getAnalysis<RootSignatureAnalysisWrapper>()
+ .getRootSignature();
+ if (!MRS.has_value())
return;
SmallString<256> Data;
raw_svector_ostream OS(Data);
- RootSignatureDescWriter writer(&Desc.value());
- writer.write(OS);
+ MRS->write(OS);
Constant *Constant =
ConstantDataArray::getString(M.getContext(), Data, /*AddNull*/ false);
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
new file mode 100644
index 00000000000000..4a51198d97ac34
--- /dev/null
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -0,0 +1,146 @@
+//===- DXILRootSignature.cpp - DXIL Root Signature helper objects
---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains helper objects and APIs for working with DXIL
+/// Root Signatures.
+///
+//===----------------------------------------------------------------------===//
+#include "DXILRootSignature.h"
+#include "DirectX.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/BinaryFormat/DXContainer.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/Module.h"
+
+using namespace llvm;
+using namespace llvm::dxil;
+
+static bool parseRootFlags(ModuleRootSignature *MRS, MDNode *RootFlagNode) {
+
+ assert(RootFlagNode->getNumOperands() == 2 &&
+ "Invalid format for RootFlag Element");
+ auto *Flag = mdconst::extract<ConstantInt>(RootFlagNode->getOperand(1));
+ auto Value = Flag->getZExtValue();
+
+ // Root Element validation, as specified:
https://github.com/llvm/wg-hlsl/blob/main/proposals/0002-root-signature-in-clang.md#validations-during-dxil-generation
+ if ((Value & ~0x80000fff) != 0)
+ return true;
+
+ MRS->Flags = Value;
+ return false;
+}
+
+static bool parseRootSignatureElement(ModuleRootSignature *MRS, MDNode
*Element) {
+ MDString *ElementText = cast<MDString>(Element->getOperand(0));
+
+ assert(ElementText != nullptr && "First preoperty of element is not ");
+
+ RootSignatureElementKind ElementKind =
+ StringSwitch<RootSignatureElementKind>(ElementText->getString())
+ .Case("RootFlags", RootSignatureElementKind::RootFlags)
+ .Case("RootConstants", RootSignatureElementKind::RootConstants)
+ .Case("RootCBV", RootSignatureElementKind::RootDescriptor)
+ .Case("RootSRV", RootSignatureElementKind::RootDescriptor)
+ .Case("RootUAV", RootSignatureElementKind::RootDescriptor)
+ .Case("Sampler", RootSignatureElementKind::RootDescriptor)
+ .Case("DescriptorTable", RootSignatureElementKind::DescriptorTable)
+ .Case("StaticSampler", RootSignatureElementKind::StaticSampler)
+ .Default(RootSignatureElementKind::None);
+
+ switch (ElementKind) {
+
+ case RootSignatureElementKind::RootFlags: {
+ return parseRootFlags(MRS, Element);
+ break;
+ }
+
+ case RootSignatureElementKind::RootConstants:
+ case RootSignatureElementKind::RootDescriptor:
+ case RootSignatureElementKind::DescriptorTable:
+ case RootSignatureElementKind::StaticSampler:
+ case RootSignatureElementKind::None:
+ llvm_unreachable("Not Implemented yet");
+ break;
+ }
+
+ return true;
+}
+
+bool ModuleRootSignature::parse( int32_t Version,
+ NamedMDNode *Root) {
+ this->Version = Version;
+ bool HasError = false;
+
+ for (unsigned int Sid = 0; Sid < Root->getNumOperands(); Sid++) {
+ // This should be an if, for error handling
+ MDNode *Node = cast<MDNode>(Root->getOperand(Sid));
+
+ // Not sure what use this for...
+ Metadata *Func = Node->getOperand(0).get();
+
+ // This should be an if, for error handling
+ MDNode *Elements = cast<MDNode>(Node->getOperand(1).get());
+
+ for (unsigned int Eid = 0; Eid < Elements->getNumOperands(); Eid++) {
+ MDNode *Element = cast<MDNode>(Elements->getOperand(Eid));
+
+ HasError = HasError || parseRootSignatureElement(this, Element);
+ }
+ }
+ return HasError;
+}
+
+void ModuleRootSignature::write(raw_ostream &OS) {
+ dxbc::RootSignatureDesc Out{this->Version, this->Flags};
+
+ if (sys::IsBigEndianHost) {
+ Out.swapBytes();
+ }
+
+ OS.write(reinterpret_cast<const char *>(&Out),
sizeof(dxbc::RootSignatureDesc));
+}
+
+AnalysisKey RootSignatureAnalysis::Key;
+
+ModuleRootSignature RootSignatureAnalysis::run(Module &M,
+ ModuleAnalysisManager &AM) {
+ ModuleRootSignature MRSI;
+
+ NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
+ if (RootSignatureNode) {
+ MRSI.parse(1, RootSignatureNode);
+ }
+
+ return MRSI;
+
+}
+
+
+//===----------------------------------------------------------------------===//
+bool RootSignatureAnalysisWrapper::runOnModule(Module &M) {
+ ModuleRootSignature MRS;
+
+ NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
+ if (RootSignatureNode) {
+ MRS.parse(1, RootSignatureNode);
+ this->MRS = MRS;
+ }
+
+
+ return false;
+}
+
+void RootSignatureAnalysisWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+}
+
+char RootSignatureAnalysisWrapper::ID = 0;
+
+INITIALIZE_PASS(RootSignatureAnalysisWrapper, "dx-root-signature-analysis",
+ "DXIL Root Signature Analysis", true, true)
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.h
b/llvm/lib/Target/DirectX/DXILRootSignature.h
new file mode 100644
index 00000000000000..fdfd6c41c0af37
--- /dev/null
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.h
@@ -0,0 +1,75 @@
+//===- DXILRootSignature.h - DXIL Root Signature helper objects
---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains helper objects and APIs for working with DXIL
+/// Root Signatures.
+///
+//===----------------------------------------------------------------------===//
+
+
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/PassManager.h"
+#include "llvm/Pass.h"
+#include <optional>
+
+namespace llvm {
+namespace dxil {
+
+
+ enum class RootSignatureElementKind {
+ None = 0,
+ RootFlags = 1,
+ RootConstants = 2,
+ RootDescriptor = 3,
+ DescriptorTable = 4,
+ StaticSampler = 5
+ };
+
+ struct ModuleRootSignature {
+ uint32_t Version;
+ uint32_t Flags;
+
+ ModuleRootSignature() = default;
+
+ bool parse( int32_t Version, NamedMDNode *Root);
+ void write(raw_ostream &OS);
+ };
+
+ class RootSignatureAnalysis : public
AnalysisInfoMixin<RootSignatureAnalysis> {
+ friend AnalysisInfoMixin<RootSignatureAnalysis>;
+ static AnalysisKey Key;
+
+ public:
+ RootSignatureAnalysis() = default;
+
+ using Result = ModuleRootSignature;
+
+ ModuleRootSignature run(Module &M, ModuleAnalysisManager &AM);
+ };
+
+ /// Wrapper pass for the legacy pass manager.
+ ///
+ /// This is required because the passes that will depend on this are
codegen
+ /// passes which run through the legacy pass manager.
+ class RootSignatureAnalysisWrapper : public ModulePass {
+ std::optional<ModuleRootSignature> MRS;
+
+ public:
+ static char ID;
+
+ RootSignatureAnalysisWrapper() : ModulePass(ID) {}
+
+ const std::optional<ModuleRootSignature> &getRootSignature() { return MRS;
}
+
+ bool runOnModule(Module &M) override;
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override;
+ };
+
+} // namespace dxil
+} // namespace llvm
diff --git a/llvm/lib/Target/DirectX/DirectX.h
b/llvm/lib/Target/DirectX/DirectX.h
index add23587de7d58..953ac3eb820987 100644
--- a/llvm/lib/Target/DirectX/DirectX.h
+++ b/llvm/lib/Target/DirectX/DirectX.h
@@ -77,6 +77,9 @@ void initializeDXILPrettyPrinterLegacyPass(PassRegistry &);
/// Initializer for dxil::ShaderFlagsAnalysisWrapper pass.
void initializeShaderFlagsAnalysisWrapperPass(PassRegistry &);
+/// Initializer for dxil::RootSignatureAnalysisWrapper pass.
+void initializeRootSignatureAnalysisWrapperPass(PassRegistry &);
+
/// Initializer for DXContainerGlobals pass.
void initializeDXContainerGlobalsPass(PassRegistry &);
diff --git a/llvm/lib/Target/DirectX/DirectXTargetMachine.cpp
b/llvm/lib/Target/DirectX/DirectXTargetMachine.cpp
index ecb1bf775f8578..93745d7a5cb0d2 100644
--- a/llvm/lib/Target/DirectX/DirectXTargetMachine.cpp
+++ b/llvm/lib/Target/DirectX/DirectXTargetMachine.cpp
@@ -61,6 +61,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void
LLVMInitializeDirectXTarget() {
initializeDXILTranslateMetadataLegacyPass(*PR);
initializeDXILResourceMDWrapperPass(*PR);
initializeShaderFlagsAnalysisWrapperPass(*PR);
+ initializeRootSignatureAnalysisWrapperPass(*PR);
initializeDXILFinalizeLinkageLegacyPass(*PR);
}
diff --git a/llvm/test/CodeGen/DirectX/ContainerData/RootSignature-Flags.ll
b/llvm/test/CodeGen/DirectX/ContainerData/RootSignature-Flags.ll
new file mode 100644
index 00000000000000..ffbf5e9ffd1d32
--- /dev/null
+++ b/llvm/test/CodeGen/DirectX/ContainerData/RootSignature-Flags.ll
@@ -0,0 +1,38 @@
+; RUN: opt %s -dxil-embed -dxil-globals -S -o - | FileCheck %s
+; RUN: llc %s --filetype=obj -o - | obj2yaml | FileCheck %s --check-prefix=DXC
+
+target triple = "dxil-unknown-shadermodel6.0-compute"
+
+; CHECK: @dx.rts0 = private constant [8 x i8] c"{{.*}}", section "RTS0",
align 4
+
+
+define void @main() #0 {
+entry:
+ ret void
+}
+
+attributes #0 = { "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" }
+
+
+!dx.rootsignatures = !{!2} ; list of function/root signature pairs
+!2 = !{ ptr @main, !3 } ; function, root signature
+!3 = !{ !4 } ; list of root signature elements
+!4 = !{ !"RootFlags", i32 1 } ; 1 = allow_input_assembler_input_layout
+
+
+; DXC: - Name: RTS0
+; DXC-NEXT: Size: 8
+; DXC-NEXT: RootSignature:
+; DXC-NEXT: Version: 1
+; DXC-NEXT: AllowInputAssemblerInputLayout: true
+; DXC-NEXT: DenyVertexShaderRootAccess: false
+; DXC-NEXT: DenyHullShaderRootAccess: false
+; DXC-NEXT: DenyDomainShaderRootAccess: false
+; DXC-NEXT: DenyGeometryShaderRootAccess: false
+; DXC-NEXT: DenyPixelShaderRootAccess: false
+; DXC-NEXT: AllowStreamOutput: false
+; DXC-NEXT: LocalRootSignature: false
+; DXC-NEXT: DenyAmplificationShaderRootAccess: false
+; DXC-NEXT: DenyMeshShaderRootAccess: false
+; DXC-NEXT: CBVSRVUAVHeapDirectlyIndexed: false
+; DXC-NEXT: SamplerHeapDirectlyIndexed: false
>From 701a1b27d0964447ef1c323bc4a8d2e5a92abdb8 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Thu, 16 Jan 2025 00:37:14 +0000
Subject: [PATCH 3/6] formating
---
llvm/lib/Analysis/DXILMetadataAnalysis.cpp | 2 -
.../lib/Target/DirectX/DXContainerGlobals.cpp | 5 +-
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 48 ++++++------
llvm/lib/Target/DirectX/DXILRootSignature.h | 77 +++++++++----------
4 files changed, 64 insertions(+), 68 deletions(-)
diff --git a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
index 15e72bf17515b1..197b7e422092c6 100644
--- a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
+++ b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
@@ -24,8 +24,6 @@
using namespace llvm;
using namespace dxil;
-
-
static ModuleMetadataInfo collectMetadataInfo(Module &M) {
ModuleMetadataInfo MMDAI;
Triple TT(Triple(M.getTargetTriple()));
diff --git a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
index 833a22a9b3e81e..ac70bd3771dadf 100644
--- a/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
+++ b/llvm/lib/Target/DirectX/DXContainerGlobals.cpp
@@ -10,8 +10,8 @@
//
//===----------------------------------------------------------------------===//
-#include "DXILShaderFlags.h"
#include "DXILRootSignature.h"
+#include "DXILShaderFlags.h"
#include "DirectX.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
@@ -153,8 +153,7 @@ void DXContainerGlobals::addRootSignature(Module &M,
SmallVector<GlobalValue *> &Globals)
{
std::optional<ModuleRootSignature> MRS =
- getAnalysis<RootSignatureAnalysisWrapper>()
- .getRootSignature();
+ getAnalysis<RootSignatureAnalysisWrapper>().getRootSignature();
if (!MRS.has_value())
return;
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index 4a51198d97ac34..89621868a93368 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -1,4 +1,5 @@
-//===- DXILRootSignature.cpp - DXIL Root Signature helper objects
---------------===//
+//===- DXILRootSignature.cpp - DXIL Root Signature helper objects
+//---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
@@ -28,7 +29,8 @@ static bool parseRootFlags(ModuleRootSignature *MRS, MDNode
*RootFlagNode) {
auto *Flag = mdconst::extract<ConstantInt>(RootFlagNode->getOperand(1));
auto Value = Flag->getZExtValue();
- // Root Element validation, as specified:
https://github.com/llvm/wg-hlsl/blob/main/proposals/0002-root-signature-in-clang.md#validations-during-dxil-generation
+ // Root Element validation, as specified:
+ //
https://github.com/llvm/wg-hlsl/blob/main/proposals/0002-root-signature-in-clang.md#validations-during-dxil-generation
if ((Value & ~0x80000fff) != 0)
return true;
@@ -36,7 +38,8 @@ static bool parseRootFlags(ModuleRootSignature *MRS, MDNode
*RootFlagNode) {
return false;
}
-static bool parseRootSignatureElement(ModuleRootSignature *MRS, MDNode
*Element) {
+static bool parseRootSignatureElement(ModuleRootSignature *MRS,
+ MDNode *Element) {
MDString *ElementText = cast<MDString>(Element->getOperand(0));
assert(ElementText != nullptr && "First preoperty of element is not ");
@@ -72,8 +75,7 @@ static bool parseRootSignatureElement(ModuleRootSignature
*MRS, MDNode *Element)
return true;
}
-bool ModuleRootSignature::parse( int32_t Version,
- NamedMDNode *Root) {
+bool ModuleRootSignature::parse(int32_t Version, NamedMDNode *Root) {
this->Version = Version;
bool HasError = false;
@@ -103,37 +105,35 @@ void ModuleRootSignature::write(raw_ostream &OS) {
Out.swapBytes();
}
- OS.write(reinterpret_cast<const char *>(&Out),
sizeof(dxbc::RootSignatureDesc));
+ OS.write(reinterpret_cast<const char *>(&Out),
+ sizeof(dxbc::RootSignatureDesc));
}
AnalysisKey RootSignatureAnalysis::Key;
ModuleRootSignature RootSignatureAnalysis::run(Module &M,
- ModuleAnalysisManager &AM) {
- ModuleRootSignature MRSI;
+ ModuleAnalysisManager &AM) {
+ ModuleRootSignature MRSI;
- NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
- if (RootSignatureNode) {
- MRSI.parse(1, RootSignatureNode);
- }
-
- return MRSI;
+ NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
+ if (RootSignatureNode) {
+ MRSI.parse(1, RootSignatureNode);
+ }
+ return MRSI;
}
-
//===----------------------------------------------------------------------===//
bool RootSignatureAnalysisWrapper::runOnModule(Module &M) {
ModuleRootSignature MRS;
- NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
- if (RootSignatureNode) {
- MRS.parse(1, RootSignatureNode);
- this->MRS = MRS;
- }
-
+ NamedMDNode *RootSignatureNode = M.getNamedMetadata("dx.rootsignatures");
+ if (RootSignatureNode) {
+ MRS.parse(1, RootSignatureNode);
+ this->MRS = MRS;
+ }
- return false;
+ return false;
}
void RootSignatureAnalysisWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
@@ -142,5 +142,5 @@ void
RootSignatureAnalysisWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
char RootSignatureAnalysisWrapper::ID = 0;
-INITIALIZE_PASS(RootSignatureAnalysisWrapper, "dx-root-signature-analysis",
- "DXIL Root Signature Analysis", true, true)
+INITIALIZE_PASS(RootSignatureAnalysisWrapper, "dx-root-signature-analysis",
+ "DXIL Root Signature Analysis", true, true)
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.h
b/llvm/lib/Target/DirectX/DXILRootSignature.h
index fdfd6c41c0af37..de82afcdc8c467 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.h
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.h
@@ -1,4 +1,5 @@
-//===- DXILRootSignature.h - DXIL Root Signature helper objects
---------------===//
+//===- DXILRootSignature.h - DXIL Root Signature helper objects
+//---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
@@ -11,7 +12,6 @@
///
//===----------------------------------------------------------------------===//
-
#include "llvm/IR/Metadata.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
@@ -20,56 +20,55 @@
namespace llvm {
namespace dxil {
+enum class RootSignatureElementKind {
+ None = 0,
+ RootFlags = 1,
+ RootConstants = 2,
+ RootDescriptor = 3,
+ DescriptorTable = 4,
+ StaticSampler = 5
+};
- enum class RootSignatureElementKind {
- None = 0,
- RootFlags = 1,
- RootConstants = 2,
- RootDescriptor = 3,
- DescriptorTable = 4,
- StaticSampler = 5
- };
-
- struct ModuleRootSignature {
- uint32_t Version;
- uint32_t Flags;
+struct ModuleRootSignature {
+ uint32_t Version;
+ uint32_t Flags;
- ModuleRootSignature() = default;
+ ModuleRootSignature() = default;
- bool parse( int32_t Version, NamedMDNode *Root);
- void write(raw_ostream &OS);
- };
+ bool parse(int32_t Version, NamedMDNode *Root);
+ void write(raw_ostream &OS);
+};
- class RootSignatureAnalysis : public
AnalysisInfoMixin<RootSignatureAnalysis> {
- friend AnalysisInfoMixin<RootSignatureAnalysis>;
- static AnalysisKey Key;
+class RootSignatureAnalysis : public AnalysisInfoMixin<RootSignatureAnalysis> {
+ friend AnalysisInfoMixin<RootSignatureAnalysis>;
+ static AnalysisKey Key;
- public:
- RootSignatureAnalysis() = default;
+public:
+ RootSignatureAnalysis() = default;
- using Result = ModuleRootSignature;
+ using Result = ModuleRootSignature;
- ModuleRootSignature run(Module &M, ModuleAnalysisManager &AM);
- };
+ ModuleRootSignature run(Module &M, ModuleAnalysisManager &AM);
+};
- /// Wrapper pass for the legacy pass manager.
- ///
- /// This is required because the passes that will depend on this are
codegen
- /// passes which run through the legacy pass manager.
- class RootSignatureAnalysisWrapper : public ModulePass {
- std::optional<ModuleRootSignature> MRS;
+/// Wrapper pass for the legacy pass manager.
+///
+/// This is required because the passes that will depend on this are codegen
+/// passes which run through the legacy pass manager.
+class RootSignatureAnalysisWrapper : public ModulePass {
+ std::optional<ModuleRootSignature> MRS;
- public:
- static char ID;
+public:
+ static char ID;
- RootSignatureAnalysisWrapper() : ModulePass(ID) {}
+ RootSignatureAnalysisWrapper() : ModulePass(ID) {}
- const std::optional<ModuleRootSignature> &getRootSignature() { return MRS;
}
+ const std::optional<ModuleRootSignature> &getRootSignature() { return MRS; }
- bool runOnModule(Module &M) override;
+ bool runOnModule(Module &M) override;
- void getAnalysisUsage(AnalysisUsage &AU) const override;
- };
+ void getAnalysisUsage(AnalysisUsage &AU) const override;
+};
} // namespace dxil
} // namespace llvm
>From 273db6ed06446ed323f13debd29142f4b196c72c Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Thu, 16 Jan 2025 00:42:54 +0000
Subject: [PATCH 4/6] removing useless imports
---
llvm/include/llvm/Analysis/DXILMetadataAnalysis.h | 1 -
llvm/lib/Analysis/DXILMetadataAnalysis.cpp | 3 ---
llvm/lib/ObjectYAML/DXContainerYAML.cpp | 1 -
3 files changed, 5 deletions(-)
diff --git a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
index dcc3237f57802f..cb535ac14f1c61 100644
--- a/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
+++ b/llvm/include/llvm/Analysis/DXILMetadataAnalysis.h
@@ -14,7 +14,6 @@
#include "llvm/Pass.h"
#include "llvm/Support/VersionTuple.h"
#include "llvm/TargetParser/Triple.h"
-#include <optional>
namespace llvm {
diff --git a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
index 197b7e422092c6..a7f666a3f8b48f 100644
--- a/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
+++ b/llvm/lib/Analysis/DXILMetadataAnalysis.cpp
@@ -15,9 +15,7 @@
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
-#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
-#include <memory>
#define DEBUG_TYPE "dxil-metadata-analysis"
@@ -30,7 +28,6 @@ static ModuleMetadataInfo collectMetadataInfo(Module &M) {
MMDAI.DXILVersion = TT.getDXILVersion();
MMDAI.ShaderModelVersion = TT.getOSVersion();
MMDAI.ShaderProfile = TT.getEnvironment();
-
NamedMDNode *ValidatorVerNode = M.getNamedMetadata("dx.valver");
if (ValidatorVerNode) {
auto *ValVerMD = cast<MDNode>(ValidatorVerNode->getOperand(0));
diff --git a/llvm/lib/ObjectYAML/DXContainerYAML.cpp
b/llvm/lib/ObjectYAML/DXContainerYAML.cpp
index 80f4587a06ff5e..9618331fcca4ed 100644
--- a/llvm/lib/ObjectYAML/DXContainerYAML.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerYAML.cpp
@@ -15,7 +15,6 @@
#include "llvm/ADT/ScopeExit.h"
#include "llvm/BinaryFormat/DXContainer.h"
#include "llvm/Support/ScopedPrinter.h"
-#include <cstdint>
namespace llvm {
>From 290de3b1c78ba5bd4a1c6484056831f1c0646f61 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Thu, 16 Jan 2025 19:22:31 +0000
Subject: [PATCH 5/6] fixing pr changes
---
llvm/lib/ObjectYAML/DXContainerYAML.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/llvm/lib/ObjectYAML/DXContainerYAML.cpp
b/llvm/lib/ObjectYAML/DXContainerYAML.cpp
index 9618331fcca4ed..80f4587a06ff5e 100644
--- a/llvm/lib/ObjectYAML/DXContainerYAML.cpp
+++ b/llvm/lib/ObjectYAML/DXContainerYAML.cpp
@@ -15,6 +15,7 @@
#include "llvm/ADT/ScopeExit.h"
#include "llvm/BinaryFormat/DXContainer.h"
#include "llvm/Support/ScopedPrinter.h"
+#include <cstdint>
namespace llvm {
>From 4a5b44cd3711795e91c248c9d2c0c0b36953d7c2 Mon Sep 17 00:00:00 2001
From: joaosaffran <joao.saff...@microsoft.com>
Date: Thu, 16 Jan 2025 20:06:13 +0000
Subject: [PATCH 6/6] adding some asserts
---
llvm/lib/Target/DirectX/DXILRootSignature.cpp | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
index 89621868a93368..024743b9f81a6c 100644
--- a/llvm/lib/Target/DirectX/DXILRootSignature.cpp
+++ b/llvm/lib/Target/DirectX/DXILRootSignature.cpp
@@ -18,6 +18,7 @@
#include "llvm/IR/Constants.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
+#include <cassert>
using namespace llvm;
using namespace llvm::dxil;
@@ -31,8 +32,7 @@ static bool parseRootFlags(ModuleRootSignature *MRS, MDNode
*RootFlagNode) {
// Root Element validation, as specified:
//
https://github.com/llvm/wg-hlsl/blob/main/proposals/0002-root-signature-in-clang.md#validations-during-dxil-generation
- if ((Value & ~0x80000fff) != 0)
- return true;
+ assert((Value & ~0x80000fff) != 0 && "Invalid flag for RootFlag Element");
MRS->Flags = Value;
return false;
@@ -41,8 +41,7 @@ static bool parseRootFlags(ModuleRootSignature *MRS, MDNode
*RootFlagNode) {
static bool parseRootSignatureElement(ModuleRootSignature *MRS,
MDNode *Element) {
MDString *ElementText = cast<MDString>(Element->getOperand(0));
-
- assert(ElementText != nullptr && "First preoperty of element is not ");
+ assert(ElementText != nullptr && "First preoperty of element is not a
string");
RootSignatureElementKind ElementKind =
StringSwitch<RootSignatureElementKind>(ElementText->getString())
@@ -84,13 +83,14 @@ bool ModuleRootSignature::parse(int32_t Version,
NamedMDNode *Root) {
MDNode *Node = cast<MDNode>(Root->getOperand(Sid));
// Not sure what use this for...
- Metadata *Func = Node->getOperand(0).get();
+ // Metadata *Func = Node->getOperand(0).get();
- // This should be an if, for error handling
MDNode *Elements = cast<MDNode>(Node->getOperand(1).get());
+ assert(Elements && "Invalid Metadata type on root signature");
for (unsigned int Eid = 0; Eid < Elements->getNumOperands(); Eid++) {
MDNode *Element = cast<MDNode>(Elements->getOperand(Eid));
+ assert(Element && "Invalid Metadata type on root element");
HasError = HasError || parseRootSignatureElement(this, Element);
}
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