https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/67147
>From 54840541b94b5ccc02c1c563678991ea230acbb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbae...@redhat.com>
Date: Fri, 22 Sep 2023 16:27:11 +0200
Subject: [PATCH] [clang][Interp] Handle CXXScalarValueInitExprs
---
clang/lib/AST/Interp/ByteCodeExprGen.cpp | 6 ++++++
clang/lib/AST/Interp/ByteCodeExprGen.h | 1 +
clang/test/AST/Interp/literals.cpp | 27 ++++++++++++++++++++++++
3 files changed, 34 insertions(+)
diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 02b35583636bf13..9bd040a208b3f95 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1531,6 +1531,12 @@ bool ByteCodeExprGen<Emitter>::VisitOffsetOfExpr(const
OffsetOfExpr *E) {
return this->emitOffsetOf(T, E, E);
}
+template <class Emitter>
+bool ByteCodeExprGen<Emitter>::VisitCXXScalarValueInitExpr(
+ const CXXScalarValueInitExpr *E) {
+ return this->visitZeroInitializer(E->getType(), E);
+}
+
template <class Emitter> bool ByteCodeExprGen<Emitter>::discard(const Expr *E)
{
if (E->containsErrors())
return false;
diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.h
b/clang/lib/AST/Interp/ByteCodeExprGen.h
index 47a3f75f13459d0..7cfe4d9251c5f05 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.h
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.h
@@ -106,6 +106,7 @@ class ByteCodeExprGen : public
ConstStmtVisitor<ByteCodeExprGen<Emitter>, bool>,
bool VisitCXXConstructExpr(const CXXConstructExpr *E);
bool VisitSourceLocExpr(const SourceLocExpr *E);
bool VisitOffsetOfExpr(const OffsetOfExpr *E);
+ bool VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *E);
protected:
bool visitExpr(const Expr *E) override;
diff --git a/clang/test/AST/Interp/literals.cpp
b/clang/test/AST/Interp/literals.cpp
index ceda59405ea9105..a83dcd234111587 100644
--- a/clang/test/AST/Interp/literals.cpp
+++ b/clang/test/AST/Interp/literals.cpp
@@ -31,6 +31,33 @@ static_assert(b, "");
constexpr int one = true;
static_assert(one == 1, "");
+constexpr bool b2 = bool();
+static_assert(!b2, "");
+
+namespace ScalarTypes {
+ constexpr int ScalarInitInt = int();
+ static_assert(ScalarInitInt == 0, "");
+ constexpr float ScalarInitFloat = float();
+ static_assert(ScalarInitFloat == 0.0f, "");
+
+ static_assert(decltype(nullptr)() == nullptr, "");
+
+ template<typename T>
+ constexpr T getScalar() { return T(); }
+
+ static_assert(getScalar<const int>() == 0, "");
+ static_assert(getScalar<const double>() == 0.0, "");
+
+ static_assert(getScalar<void*>() == nullptr, "");
+ static_assert(getScalar<void(*)(void)>() == nullptr, "");
+
+ enum E {
+ First = 0,
+ };
+ static_assert(getScalar<E>() == First, "");
+ /// FIXME: Member pointers.
+}
+
namespace IntegralCasts {
constexpr int i = 12;
constexpr unsigned int ui = i;
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