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author | David Majnemer <david.majnemer@gmail.com> | 2014-05-01 17:50:17 +0000 |
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committer | David Majnemer <david.majnemer@gmail.com> | 2014-05-01 17:50:17 +0000 |
commit | 781a1d06be959c6d64f33ff12f047cf4d13cb148 (patch) | |
tree | b3a5ed4a0ce973eeef20270380513a9cb06a9a62 /lib/AST/ExprCXX.cpp | |
parent | f138d3564a1912cbc6a5f8433f521bb4922892cb (diff) |
AST: Mangle reference temporaries reliably
Summary:
Previously, we would generate a single name for all reference
temporaries and allow LLVM to rename them for us. Instead, number the
reference temporaries as we build them in Sema.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D3554
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@207776 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AST/ExprCXX.cpp')
-rw-r--r-- | lib/AST/ExprCXX.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp index ee4992590a..0181235bff 100644 --- a/lib/AST/ExprCXX.cpp +++ b/lib/AST/ExprCXX.cpp @@ -1446,6 +1446,25 @@ FunctionParmPackExpr::CreateEmpty(const ASTContext &Context, FunctionParmPackExpr(QualType(), 0, SourceLocation(), 0, 0); } +void MaterializeTemporaryExpr::setExtendingDecl(const ValueDecl *ExtendedBy, + unsigned ManglingNumber) { + // We only need extra state if we have to remember more than just the Stmt. + if (!ExtendedBy) + return; + + // We may need to allocate extra storage for the mangling number and the + // extended-by ValueDecl. + if (!State.is<ExtraState *>()) { + auto ES = new (ExtendedBy->getASTContext()) ExtraState; + ES->Temporary = State.get<Stmt *>(); + State = ES; + } + + auto ES = State.get<ExtraState *>(); + ES->ExtendingDecl = ExtendedBy; + ES->ManglingNumber = ManglingNumber; +} + TypeTraitExpr::TypeTraitExpr(QualType T, SourceLocation Loc, TypeTrait Kind, ArrayRef<TypeSourceInfo *> Args, SourceLocation RParenLoc, |