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cf7e846d11
This patch implements PR31013 by introducing a
DIGlobalVariableExpression that holds a pair of DIGlobalVariable and
DIExpression.
Currently, DIGlobalVariables holds a DIExpression. This is not the
best way to model this:
(1) The DIGlobalVariable should describe the source level variable,
not how to get to its location.
(2) It makes it unsafe/hard to update the expressions when we call
replaceExpression on the DIGLobalVariable.
(3) It makes it impossible to represent a global variable that is in
more than one location (e.g., a variable with multiple
DW_OP_LLVM_fragment-s). We also moved away from attaching the
DIExpression to DILocalVariable for the same reasons.
This reapplies r289902 with additional testcase upgrades and a change
to the Bitcode record for DIGlobalVariable, that makes upgrading the
old format unambiguous also for variables without DIExpressions.
<rdar://problem/29250149>
https://llvm.org/bugs/show_bug.cgi?id=31013
Differential Revision: https://reviews.llvm.org/D26769
llvm-svn: 290153
126 lines
4.9 KiB
C++
126 lines
4.9 KiB
C++
//===- llvm/IR/Metadata.def - Metadata definitions --------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Macros for running through all types of metadata.
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//
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//===----------------------------------------------------------------------===//
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#if !(defined HANDLE_METADATA || defined HANDLE_METADATA_LEAF || \
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defined HANDLE_METADATA_BRANCH || defined HANDLE_MDNODE_LEAF || \
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defined HANDLE_MDNODE_LEAF_UNIQUABLE || defined HANDLE_MDNODE_BRANCH || \
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defined HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE || \
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defined HANDLE_SPECIALIZED_MDNODE_LEAF || \
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defined HANDLE_SPECIALIZED_MDNODE_BRANCH)
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#error "Missing macro definition of HANDLE_METADATA*"
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#endif
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// Handler for all types of metadata.
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#ifndef HANDLE_METADATA
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#define HANDLE_METADATA(CLASS)
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#endif
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// Handler for leaf nodes in the class hierarchy.
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#ifndef HANDLE_METADATA_LEAF
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#define HANDLE_METADATA_LEAF(CLASS) HANDLE_METADATA(CLASS)
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#endif
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// Handler for non-leaf nodes in the class hierarchy.
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#ifndef HANDLE_METADATA_BRANCH
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#define HANDLE_METADATA_BRANCH(CLASS) HANDLE_METADATA(CLASS)
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#endif
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// Handler for specialized and uniquable leaf nodes under MDNode. Defers to
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// HANDLE_MDNODE_LEAF_UNIQUABLE if it's defined, otherwise to
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// HANDLE_SPECIALIZED_MDNODE_LEAF.
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#ifndef HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE
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#ifdef HANDLE_MDNODE_LEAF_UNIQUABLE
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#define HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(CLASS) \
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HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)
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#else
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#define HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(CLASS) \
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HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS)
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#endif
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#endif
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// Handler for leaf nodes under MDNode.
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#ifndef HANDLE_MDNODE_LEAF_UNIQUABLE
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#define HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS) HANDLE_MDNODE_LEAF(CLASS)
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#endif
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// Handler for leaf nodes under MDNode.
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#ifndef HANDLE_MDNODE_LEAF
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#define HANDLE_MDNODE_LEAF(CLASS) HANDLE_METADATA_LEAF(CLASS)
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#endif
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// Handler for non-leaf nodes under MDNode.
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#ifndef HANDLE_MDNODE_BRANCH
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#define HANDLE_MDNODE_BRANCH(CLASS) HANDLE_METADATA_BRANCH(CLASS)
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#endif
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// Handler for specialized leaf nodes under MDNode.
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#ifndef HANDLE_SPECIALIZED_MDNODE_LEAF
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#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) HANDLE_MDNODE_LEAF(CLASS)
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#endif
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// Handler for specialized non-leaf nodes under MDNode.
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#ifndef HANDLE_SPECIALIZED_MDNODE_BRANCH
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#define HANDLE_SPECIALIZED_MDNODE_BRANCH(CLASS) HANDLE_MDNODE_BRANCH(CLASS)
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#endif
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HANDLE_METADATA_LEAF(MDString)
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HANDLE_METADATA_BRANCH(ValueAsMetadata)
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HANDLE_METADATA_LEAF(ConstantAsMetadata)
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HANDLE_METADATA_LEAF(LocalAsMetadata)
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HANDLE_METADATA_LEAF(DistinctMDOperandPlaceholder)
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HANDLE_MDNODE_BRANCH(MDNode)
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HANDLE_MDNODE_LEAF_UNIQUABLE(MDTuple)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DILocation)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIExpression)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIGlobalVariableExpression)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DINode)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(GenericDINode)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DISubrange)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIEnumerator)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DIScope)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DIType)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIBasicType)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIDerivedType)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DICompositeType)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DISubroutineType)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIFile)
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HANDLE_SPECIALIZED_MDNODE_LEAF(DICompileUnit)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DILocalScope)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DISubprogram)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DILexicalBlockBase)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DILexicalBlock)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DILexicalBlockFile)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DINamespace)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIModule)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DITemplateParameter)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DITemplateTypeParameter)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DITemplateValueParameter)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DIVariable)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIGlobalVariable)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DILocalVariable)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIObjCProperty)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIImportedEntity)
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HANDLE_SPECIALIZED_MDNODE_BRANCH(DIMacroNode)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIMacro)
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HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE(DIMacroFile)
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#undef HANDLE_METADATA
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#undef HANDLE_METADATA_LEAF
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#undef HANDLE_METADATA_BRANCH
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#undef HANDLE_MDNODE_LEAF
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#undef HANDLE_MDNODE_LEAF_UNIQUABLE
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#undef HANDLE_MDNODE_BRANCH
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#undef HANDLE_SPECIALIZED_MDNODE_LEAF
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#undef HANDLE_SPECIALIZED_MDNODE_LEAF_UNIQUABLE
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#undef HANDLE_SPECIALIZED_MDNODE_BRANCH
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