[PATCH] D142448: [clang][Interp] Handle TypeTraitExprs
Timm Bäder via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Jan 24 03:14:04 PST 2023
tbaeder created this revision.
tbaeder added reviewers: aaron.ballman, tahonermann, erichkeane, shafik.
Herald added a project: All.
tbaeder requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
Only light testing here, since the value we're emitting is something we get from sema IIUC.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D142448
Files:
clang/lib/AST/Interp/ByteCodeExprGen.cpp
clang/lib/AST/Interp/ByteCodeExprGen.h
clang/test/AST/Interp/literals.cpp
Index: clang/test/AST/Interp/literals.cpp
===================================================================
--- clang/test/AST/Interp/literals.cpp
+++ clang/test/AST/Interp/literals.cpp
@@ -749,3 +749,15 @@
static_assert(get3() == 3, "");
#endif
};
+
+namespace TypeTraits {
+ static_assert(__is_trivial(int), "");
+ static_assert(__is_trivial(float), "");
+ static_assert(__is_trivial(E), "");
+ struct S{};
+ static_assert(__is_trivial(S), "");
+ struct S2 {
+ S2() {}
+ };
+ static_assert(!__is_trivial(S2), "");
+}
Index: clang/lib/AST/Interp/ByteCodeExprGen.h
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.h
+++ clang/lib/AST/Interp/ByteCodeExprGen.h
@@ -91,6 +91,7 @@
bool VisitExprWithCleanups(const ExprWithCleanups *E);
bool VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E);
bool VisitCompoundLiteralExpr(const CompoundLiteralExpr *E);
+ bool VisitTypeTraitExpr(const TypeTraitExpr *E);
protected:
bool visitExpr(const Expr *E) override;
Index: clang/lib/AST/Interp/ByteCodeExprGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -886,6 +886,11 @@
return false;
}
+template <class Emitter>
+bool ByteCodeExprGen<Emitter>::VisitTypeTraitExpr(const TypeTraitExpr *E) {
+ return this->emitConstBool(E->getValue(), E);
+}
+
template <class Emitter> bool ByteCodeExprGen<Emitter>::discard(const Expr *E) {
if (E->containsErrors())
return false;
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