================
@@ -271,26 +271,32 @@ class CFGWalker {
// translateAttrExpr needs it, but that should be moved too.
class CapabilityExpr {
private:
- /// The capability expression and whether it's negated.
- llvm::PointerIntPair<const til::SExpr *, 1, bool> CapExpr;
+ /// The capability expression and flags.
+ llvm::PointerIntPair<const til::SExpr *, 2, unsigned> CapExpr;
/// The kind of capability as specified by @ref CapabilityAttr::getName.
StringRef CapKind;
public:
- CapabilityExpr() : CapExpr(nullptr, false) {}
- CapabilityExpr(const til::SExpr *E, StringRef Kind, bool Neg)
- : CapExpr(E, Neg), CapKind(Kind) {}
+ static constexpr unsigned FlagNegative = 1u << 0;
+ static constexpr unsigned FlagReentrant = 1u << 1;
----------------
aaronpuchert wrote:
I wonder if there is a use case for having both. If the capability can be
acquired an arbitrary number of times, does it make sense to require it not
being held? At least the negative capability should not be required when
acquiring a reentrant mutex.
https://github.com/llvm/llvm-project/pull/137133
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