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CGDebugInfo: Use DIImportedEntity default constructor, NFC 

Use the newly minted `DIImportedEntity` default constructor (r230609)
rather than explicitly specifying `nullptr`.  The latter will become
ambiguous when the new debug info hierarchy is committed, since we'll
have both of the following:

    explicit DIImportedEntity(const MDNode *);
    DIImportedEntity(const MDImportedEntity *);

(Currently we just have the former.)

A default constructor is just as clear.

llvm-svn: 230610
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-26 04:44:27 +00:00
parent c316bbb912
commit a346e03084
1 changed files with 2 additions and 2 deletions
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4
clang/lib/CodeGen/CGDebugInfo.cpp
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@ -3321,11 +3321,11 @@ void CGDebugInfo::EmitUsingDecl(const UsingDecl &UD) {
llvm::DIImportedEntity
CGDebugInfo::EmitNamespaceAlias(const NamespaceAliasDecl &NA) {
if (CGM.getCodeGenOpts().getDebugInfo() < CodeGenOptions::LimitedDebugInfo)
return llvm::DIImportedEntity(nullptr);
return llvm::DIImportedEntity();
auto &VH = NamespaceAliasCache[&NA];
if (VH)
return llvm::DIImportedEntity(cast<llvm::MDNode>(VH));
llvm::DIImportedEntity R(nullptr);
llvm::DIImportedEntity R;
if (const NamespaceAliasDecl *Underlying =
dyn_cast<NamespaceAliasDecl>(NA.getAliasedNamespace()))
// This could cache & dedup here rather than relying on metadata deduping.