[clang] f0fa2d7 - [llvm] Move AttributeMask to a separate header
Elliot Goodrich via cfe-commits
cfe-commits at lists.llvm.org
Tue Jun 27 07:29:45 PDT 2023
Author: Elliot Goodrich
Date: 2023-06-27T15:26:17+01:00
New Revision: f0fa2d7c292853b79b5bcd16be97940859a800ec
URL: https://github.com/llvm/llvm-project/commit/f0fa2d7c292853b79b5bcd16be97940859a800ec
DIFF: https://github.com/llvm/llvm-project/commit/f0fa2d7c292853b79b5bcd16be97940859a800ec.diff
LOG: [llvm] Move AttributeMask to a separate header
Move `AttributeMask` out of `llvm/IR/Attributes.h` to a new file
`llvm/IR/AttributeMask.h`. After doing this we can remove the
`#include <bitset>` and `#include <set>` directives from `Attributes.h`.
Since there are many headers including `Attributes.h`, but not needing
the definition of `AttributeMask`, this causes unnecessary bloating of
the translation units and slows down compilation.
This commit adds in the include directive for `llvm/IR/AttributeMask.h`
to the handful of source files that need to see the definition.
This reduces the total number of preprocessing tokens across the LLVM
source files in lib from (roughly) 1,917,509,187 to 1,902,982,273 - a
reduction of ~0.76%. This should result in a small improvement in
compilation time.
Differential Revision: https://reviews.llvm.org/D153728
Added:
llvm/include/llvm/IR/AttributeMask.h
Modified:
clang/lib/CodeGen/CGCall.cpp
clang/lib/CodeGen/CodeGenModule.cpp
llvm/include/llvm/IR/Attributes.h
llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
llvm/lib/IR/Attributes.cpp
llvm/lib/IR/AutoUpgrade.cpp
llvm/lib/IR/Instruction.cpp
llvm/lib/IR/Verifier.cpp
llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp
llvm/lib/Target/DirectX/DXILPrepare.cpp
llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
llvm/lib/Transforms/IPO/SCCP.cpp
llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
llvm/lib/Transforms/Utils/CallPromotionUtils.cpp
llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
llvm/tools/llvm-reduce/deltas/ReduceInstructions.cpp
llvm/unittests/IR/AttributesTest.cpp
Removed:
################################################################################
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 6a9be661998fc..50ef440937fd9 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -31,6 +31,7 @@
#include "llvm/ADT/StringExtras.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Assumptions.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 7a4b81a48f727..b404b92bb7638 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -52,6 +52,7 @@
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Frontend/OpenMP/OMPIRBuilder.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Intrinsics.h"
diff --git a/llvm/include/llvm/IR/AttributeMask.h b/llvm/include/llvm/IR/AttributeMask.h
new file mode 100644
index 0000000000000..857761149ff46
--- /dev/null
+++ b/llvm/include/llvm/IR/AttributeMask.h
@@ -0,0 +1,86 @@
+//===- llvm/AttributeMask.h - Mask for Attributes ---------------*- C++ -*-===//
+//
+// 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 declares the AttributeMask class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_ATTRIBUTEMASK_H
+#define LLVM_IR_ATTRIBUTEMASK_H
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/IR/Attributes.h"
+#include <bitset>
+#include <cassert>
+#include <set>
+
+namespace llvm {
+
+//===----------------------------------------------------------------------===//
+/// \class
+/// This class stores enough information to efficiently remove some attributes
+/// from an existing AttrBuilder, AttributeSet or AttributeList.
+class AttributeMask {
+ std::bitset<Attribute::EndAttrKinds> Attrs;
+ std::set<SmallString<32>, std::less<>> TargetDepAttrs;
+
+public:
+ AttributeMask() = default;
+ AttributeMask(const AttributeMask &) = delete;
+ AttributeMask(AttributeMask &&) = default;
+
+ AttributeMask(AttributeSet AS) {
+ for (Attribute A : AS)
+ addAttribute(A);
+ }
+
+ /// Add an attribute to the mask.
+ AttributeMask &addAttribute(Attribute::AttrKind Val) {
+ assert((unsigned)Val < Attribute::EndAttrKinds &&
+ "Attribute out of range!");
+ Attrs[Val] = true;
+ return *this;
+ }
+
+ /// Add the Attribute object to the builder.
+ AttributeMask &addAttribute(Attribute A) {
+ if (A.isStringAttribute())
+ addAttribute(A.getKindAsString());
+ else
+ addAttribute(A.getKindAsEnum());
+ return *this;
+ }
+
+ /// Add the target-dependent attribute to the builder.
+ AttributeMask &addAttribute(StringRef A) {
+ TargetDepAttrs.insert(A);
+ return *this;
+ }
+
+ /// Return true if the builder has the specified attribute.
+ bool contains(Attribute::AttrKind A) const {
+ assert((unsigned)A < Attribute::EndAttrKinds && "Attribute out of range!");
+ return Attrs[A];
+ }
+
+ /// Return true if the builder has the specified target-dependent
+ /// attribute.
+ bool contains(StringRef A) const { return TargetDepAttrs.count(A); }
+
+ /// Return true if the mask contains the specified attribute.
+ bool contains(Attribute A) const {
+ if (A.isStringAttribute())
+ return contains(A.getKindAsString());
+ return contains(A.getKindAsEnum());
+ }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_IR_ATTRIBUTEMASK_H
diff --git a/llvm/include/llvm/IR/Attributes.h b/llvm/include/llvm/IR/Attributes.h
index be536da04c9d7..4982b11ece6fb 100644
--- a/llvm/include/llvm/IR/Attributes.h
+++ b/llvm/include/llvm/IR/Attributes.h
@@ -18,17 +18,14 @@
#include "llvm-c/Types.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/BitmaskEnum.h"
-#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/PointerLikeTypeTraits.h"
-#include <bitset>
#include <cassert>
#include <cstdint>
#include <optional>
-#include <set>
#include <string>
#include <utility>
@@ -984,65 +981,6 @@ template <> struct DenseMapInfo<AttributeList, void> {
}
};
-//===----------------------------------------------------------------------===//
-/// \class
-/// This class stores enough information to efficiently remove some attributes
-/// from an existing AttrBuilder, AttributeSet or AttributeList.
-class AttributeMask {
- std::bitset<Attribute::EndAttrKinds> Attrs;
- std::set<SmallString<32>, std::less<>> TargetDepAttrs;
-
-public:
- AttributeMask() = default;
- AttributeMask(const AttributeMask &) = delete;
- AttributeMask(AttributeMask &&) = default;
-
- AttributeMask(AttributeSet AS) {
- for (Attribute A : AS)
- addAttribute(A);
- }
-
- /// Add an attribute to the mask.
- AttributeMask &addAttribute(Attribute::AttrKind Val) {
- assert((unsigned)Val < Attribute::EndAttrKinds &&
- "Attribute out of range!");
- Attrs[Val] = true;
- return *this;
- }
-
- /// Add the Attribute object to the builder.
- AttributeMask &addAttribute(Attribute A) {
- if (A.isStringAttribute())
- addAttribute(A.getKindAsString());
- else
- addAttribute(A.getKindAsEnum());
- return *this;
- }
-
- /// Add the target-dependent attribute to the builder.
- AttributeMask &addAttribute(StringRef A) {
- TargetDepAttrs.insert(A);
- return *this;
- }
-
- /// Return true if the builder has the specified attribute.
- bool contains(Attribute::AttrKind A) const {
- assert((unsigned)A < Attribute::EndAttrKinds && "Attribute out of range!");
- return Attrs[A];
- }
-
- /// Return true if the builder has the specified target-dependent
- /// attribute.
- bool contains(StringRef A) const { return TargetDepAttrs.count(A); }
-
- /// Return true if the mask contains the specified attribute.
- bool contains(Attribute A) const {
- if (A.isStringAttribute())
- return contains(A.getKindAsString());
- return contains(A.getKindAsEnum());
- }
-};
-
//===----------------------------------------------------------------------===//
/// \class
/// This class is used in conjunction with the Attribute::get method to
diff --git a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
index 6f150082e7200..82b1e3b9eede7 100644
--- a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
+++ b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
@@ -14,6 +14,7 @@
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SCCIterator.h"
+#include "llvm/ADT/SmallString.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Function.h"
#include "llvm/Support/BlockFrequency.h"
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index a1d7044558921..ebc88c85ea744 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -23,6 +23,7 @@
#include "llvm/Bitstream/BitstreamReader.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/AutoUpgrade.h"
#include "llvm/IR/BasicBlock.h"
diff --git a/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp b/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
index e7d745c7c230c..7b3746fde503e 100644
--- a/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
+++ b/llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp
@@ -39,6 +39,7 @@
#include "llvm/Support/ErrorHandling.h"
#include <array>
+#include <bitset>
#include <memory>
using namespace llvm;
diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
index ace23f339ab79..710e29e348a86 100644
--- a/llvm/lib/IR/Attributes.cpp
+++ b/llvm/lib/IR/Attributes.cpp
@@ -23,6 +23,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Config/llvm-config.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Type.h"
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 502e93183d50b..f53f32f749fef 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -16,6 +16,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/BinaryFormat/Dwarf.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DebugInfoMetadata.h"
diff --git a/llvm/lib/IR/Instruction.cpp b/llvm/lib/IR/Instruction.cpp
index 90acdeab44184..0dcf0ac6a78ab 100644
--- a/llvm/lib/IR/Instruction.cpp
+++ b/llvm/lib/IR/Instruction.cpp
@@ -12,6 +12,7 @@
#include "llvm/IR/Instruction.h"
#include "llvm/ADT/DenseSet.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index 27adb0fbddd63..a85a1f6522b22 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -58,6 +58,7 @@
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CFG.h"
diff --git a/llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp b/llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp
index 9205770c8ead0..2fde7afc0c14f 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp
@@ -46,6 +46,7 @@
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/MemoryDependenceAnalysis.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instructions.h"
#include "llvm/InitializePasses.h"
diff --git a/llvm/lib/Target/DirectX/DXILPrepare.cpp b/llvm/lib/Target/DirectX/DXILPrepare.cpp
index 316c93806d869..d339430d455fe 100644
--- a/llvm/lib/Target/DirectX/DXILPrepare.cpp
+++ b/llvm/lib/Target/DirectX/DXILPrepare.cpp
@@ -16,6 +16,7 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Module.h"
diff --git a/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp b/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
index d6dc0f94bfcf0..01834015f3fdd 100644
--- a/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
+++ b/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
@@ -16,9 +16,11 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/Transforms/IPO/DeadArgumentElimination.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constants.h"
@@ -43,7 +45,6 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/IPO.h"
-#include "llvm/Transforms/IPO/DeadArgumentElimination.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include <cassert>
#include <utility>
diff --git a/llvm/lib/Transforms/IPO/SCCP.cpp b/llvm/lib/Transforms/IPO/SCCP.cpp
index 658d596b4bda8..985ae0062b0ec 100644
--- a/llvm/lib/Transforms/IPO/SCCP.cpp
+++ b/llvm/lib/Transforms/IPO/SCCP.cpp
@@ -20,6 +20,7 @@
#include "llvm/Analysis/ValueLattice.h"
#include "llvm/Analysis/ValueLatticeUtils.h"
#include "llvm/Analysis/ValueTracking.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/Support/CommandLine.h"
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
index 7aa4855f22316..3fc29388c8b10 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -27,6 +27,7 @@
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/Analysis/VectorUtils.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constant.h"
diff --git a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
index 3a8a7801c5e2f..808368ca05424 100644
--- a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
@@ -73,6 +73,7 @@
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constant.h"
diff --git a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
index 3341615219185..204b2620dda45 100644
--- a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -160,6 +160,7 @@
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CallingConv.h"
diff --git a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
index a96fea5f5c6cb..c483abf279e48 100644
--- a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
+++ b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
@@ -27,6 +27,7 @@
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/IR/Argument.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CallingConv.h"
diff --git a/llvm/lib/Transforms/Utils/CallPromotionUtils.cpp b/llvm/lib/Transforms/Utils/CallPromotionUtils.cpp
index 4a82f9606d3f0..b488e3bb0cbd1 100644
--- a/llvm/lib/Transforms/Utils/CallPromotionUtils.cpp
+++ b/llvm/lib/Transforms/Utils/CallPromotionUtils.cpp
@@ -14,6 +14,7 @@
#include "llvm/Transforms/Utils/CallPromotionUtils.h"
#include "llvm/Analysis/Loads.h"
#include "llvm/Analysis/TypeMetadataUtils.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instructions.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 6cb94d08dc51f..3ad97613fe7af 100644
--- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -19,6 +19,7 @@
#include "llvm/Analysis/Loads.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ValueTracking.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceInstructions.cpp b/llvm/tools/llvm-reduce/deltas/ReduceInstructions.cpp
index 7dfe028d75132..9917fed000b7a 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceInstructions.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceInstructions.cpp
@@ -14,6 +14,7 @@
#include "ReduceInstructions.h"
#include "Utils.h"
#include "llvm/IR/Constants.h"
+#include <set>
using namespace llvm;
diff --git a/llvm/unittests/IR/AttributesTest.cpp b/llvm/unittests/IR/AttributesTest.cpp
index 608bb79fdb6df..1accdfd3f6a42 100644
--- a/llvm/unittests/IR/AttributesTest.cpp
+++ b/llvm/unittests/IR/AttributesTest.cpp
@@ -8,6 +8,7 @@
#include "llvm/IR/Attributes.h"
#include "llvm/AsmParser/Parser.h"
+#include "llvm/IR/AttributeMask.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/LLVMContext.h"
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