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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-03-16 01:00:40 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-03-16 01:00:40 +0000 |
| commit | c5d060f4fad38c242f579e42a0f596702b0ccfbd (patch) | |
| tree | 6ef9a52a1756008baeeaca9fa79e3f43a9bd3e88 /lib/Sema/SemaTemplateInstantiateDecl.cpp | |
| parent | b746d24a20dd3dd173c72f2365b1307e9e355436 (diff) | |
PR19152: If a variable template's type involves 'auto', instantiate the
initializer with the variable in order to determine the type.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@204015 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaTemplateInstantiateDecl.cpp')
| -rw-r--r-- | lib/Sema/SemaTemplateInstantiateDecl.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp index 5ea21ff14a..8cfc4149e0 100644 --- a/lib/Sema/SemaTemplateInstantiateDecl.cpp +++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp @@ -3640,8 +3640,11 @@ void Sema::BuildVariableInstantiation( Context.setStaticLocalNumber(NewVar, Context.getStaticLocalNumber(OldVar)); // Delay instantiation of the initializer for variable templates until a - // definition of the variable is needed. - if (!isa<VarTemplateSpecializationDecl>(NewVar) && !InstantiatingVarTemplate) + // definition of the variable is needed. We need it right away if the type + // contains 'auto'. + if ((!isa<VarTemplateSpecializationDecl>(NewVar) && + !InstantiatingVarTemplate) || + NewVar->getType()->isUndeducedType()) InstantiateVariableInitializer(NewVar, OldVar, TemplateArgs); // Diagnose unused local variables with dependent types, where the diagnostic |