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Introduce DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80620 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -94,6 +94,7 @@ namespace llvm {
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bool isVariable() const;
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bool isSubprogram() const;
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bool isGlobalVariable() const;
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bool isScope() const;
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};
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/// DISubrange - This is used to represent ranges, for array bounds.
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@ -118,6 +119,15 @@ namespace llvm {
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}
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};
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/// DIScope - A base class for various scopes.
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class DIScope : public DIDescriptor {
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public:
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explicit DIScope(MDNode *N = 0) : DIDescriptor (N) {
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if (DbgNode && !isScope())
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DbgNode = 0;
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}
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};
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/// DICompileUnit - A wrapper for a compile unit.
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class DICompileUnit : public DIDescriptor {
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public:
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@ -210,6 +210,22 @@ bool DIDescriptor::isGlobalVariable() const {
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return Tag == dwarf::DW_TAG_variable;
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}
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/// isScope - Return true if the specified tag is one of the scope
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/// related tag.
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bool DIDescriptor::isScope() const {
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assert (!isNull() && "Invalid descriptor!");
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unsigned Tag = getTag();
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switch (Tag) {
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case dwarf::DW_TAG_compile_unit:
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case dwarf::DW_TAG_lexical_block:
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case dwarf::DW_TAG_subprogram:
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return true;
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default:
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break;
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}
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return false;
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}
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//===----------------------------------------------------------------------===//
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// Simple Descriptor Constructors and other Methods
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