[PATCH] D132831: [clang][Interp] Handle SubstNonTypeTemplateParmExprs
Timm Bäder via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Aug 29 01:24:49 PDT 2022
tbaeder created this revision.
tbaeder added reviewers: aaron.ballman, shafik, erichkeane, tahonermann.
Herald added a subscriber: kristof.beyls.
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tbaeder requested review of this revision.
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These are also easy to add and used in a unit test that I'd like to get working with the new interpreter.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D132831
Files:
clang/lib/AST/Interp/ByteCodeExprGen.cpp
clang/lib/AST/Interp/ByteCodeExprGen.h
clang/test/AST/Interp/functions.cpp
Index: clang/test/AST/Interp/functions.cpp
===================================================================
--- clang/test/AST/Interp/functions.cpp
+++ clang/test/AST/Interp/functions.cpp
@@ -65,3 +65,11 @@
return recursion(i);
}
static_assert(recursion(10) == 0, "");
+
+
+template<int N>
+constexpr decltype(N) getNum() {
+ return N;
+}
+static_assert(getNum<-2>() == -2, "");
+static_assert(getNum<10>() == 10, "");
Index: clang/lib/AST/Interp/ByteCodeExprGen.h
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.h
+++ clang/lib/AST/Interp/ByteCodeExprGen.h
@@ -68,6 +68,7 @@
bool VisitArraySubscriptExpr(const ArraySubscriptExpr *E);
bool VisitInitListExpr(const InitListExpr *E);
bool VisitImplicitValueInitExpr(const ImplicitValueInitExpr *E);
+ bool VisitSubstNonTypeTemplateParmExpr(const SubstNonTypeTemplateParmExpr *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
@@ -267,6 +267,12 @@
return false;
}
+template <class Emitter>
+bool ByteCodeExprGen<Emitter>::VisitSubstNonTypeTemplateParmExpr(
+ const SubstNonTypeTemplateParmExpr *E) {
+ return this->visit(E->getReplacement());
+}
+
template <class Emitter>
bool ByteCodeExprGen<Emitter>::discard(const Expr *E) {
OptionScope<Emitter> Scope(this, /*NewDiscardResult=*/true);
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