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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-07-31 06:31:19 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-07-31 06:31:19 +0000 |
| commit | 77be48ac4744554b08b9a6587a4ade8601c9cc90 (patch) | |
| tree | c1087a1b801effbd2418a6b09d1e749410ea6590 /clang/lib/AST/ExprConstant.cpp | |
| parent | c537bd2da4c07c56dfa49a8bc593e4e61a84c5d2 (diff) | |
| download | bcm5719-llvm-77be48ac4744554b08b9a6587a4ade8601c9cc90.tar.gz bcm5719-llvm-77be48ac4744554b08b9a6587a4ade8601c9cc90.zip | |
PR18097: Support initializing an _Atomic(T) from an object of C++ class type T
or a class derived from T. We already supported this when initializing
_Atomic(T) from T for most (and maybe all) other reasonable values of T.
llvm-svn: 214390
Diffstat (limited to 'clang/lib/AST/ExprConstant.cpp')
| -rw-r--r-- | clang/lib/AST/ExprConstant.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp index 9bd630a272f..538fc57672f 100644 --- a/clang/lib/AST/ExprConstant.cpp +++ b/clang/lib/AST/ExprConstant.cpp @@ -1353,6 +1353,11 @@ static bool CheckConstantExpression(EvalInfo &Info, SourceLocation DiagLoc, return false; } + // We allow _Atomic(T) to be initialized from anything that T can be + // initialized from. + if (const AtomicType *AT = Type->getAs<AtomicType>()) + Type = AT->getValueType(); + // Core issue 1454: For a literal constant expression of array or class type, // each subobject of its value shall have been initialized by a constant // expression. |
