[clang] [clang][Interp] Call move function for certain primitive types (PR #104437)

[Timm Baeder via cfe-commits]

https://github.com/tbaederr created https://github.com/llvm/llvm-project/pull/104437

None

>From 36c5f883ede65c2ca245354b1c55ac56edec1683 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder at redhat.com>
Date: Thu, 15 Aug 2024 15:51:22 +0200
Subject: [PATCH] [clang][Interp] Call move function for certain primitive
 types

---
 clang/lib/AST/Interp/Descriptor.cpp | 8 ++++++++
 clang/test/AST/Interp/lifetimes.cpp | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/clang/lib/AST/Interp/Descriptor.cpp b/clang/lib/AST/Interp/Descriptor.cpp
index 1b7d9f03f8ef0d..47b8885c9ae379 100644
--- a/clang/lib/AST/Interp/Descriptor.cpp
+++ b/clang/lib/AST/Interp/Descriptor.cpp
@@ -284,6 +284,14 @@ static BlockDtorFn getDtorPrim(PrimType Type) {
 }
 
 static BlockMoveFn getMovePrim(PrimType Type) {
+  if (Type == PT_Float)
+    return moveTy<PrimConv<PT_Float>::T>;
+  if (Type == PT_IntAP)
+    return moveTy<PrimConv<PT_IntAP>::T>;
+  if (Type == PT_IntAPS)
+    return moveTy<PrimConv<PT_IntAPS>::T>;
+  if (Type == PT_MemberPtr)
+    return moveTy<PrimConv<PT_MemberPtr>::T>;
   COMPOSITE_TYPE_SWITCH(Type, return moveTy<T>, return nullptr);
 }
 
diff --git a/clang/test/AST/Interp/lifetimes.cpp b/clang/test/AST/Interp/lifetimes.cpp
index 9fca54fe11120a..9a99485c4a40bf 100644
--- a/clang/test/AST/Interp/lifetimes.cpp
+++ b/clang/test/AST/Interp/lifetimes.cpp
@@ -60,3 +60,11 @@ namespace MoveFnWorks {
   }
   static_assert(dtor_calls_dtor(), "");
 }
+
+namespace PrimitiveMoveFn {
+  /// This used to crash.
+  void test() {
+    const float y = 100;
+    const float &x = y;
+  }
+}