https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/102136
... if it can't be expressed as a constant initializer.
>From 741c0bb89bc50a2a1bf270a2ac3717eb5c7f4666 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbae...@redhat.com>
Date: Tue, 6 Aug 2024 15:04:13 +0200
Subject: [PATCH] [clang][Interp] Ignore ObjCBoxedExpr subexpr...
... if it can't be expressed as a constant initializer.
---
clang/lib/AST/Interp/Compiler.cpp | 5 +++--
clang/test/AST/Interp/objc.mm | 25 +++++++++++++++++++++++++
2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/clang/lib/AST/Interp/Compiler.cpp
b/clang/lib/AST/Interp/Compiler.cpp
index 02cbe38f5fb1f..95f4fe9bd0bec 100644
--- a/clang/lib/AST/Interp/Compiler.cpp
+++ b/clang/lib/AST/Interp/Compiler.cpp
@@ -3161,10 +3161,11 @@ bool Compiler<Emitter>::VisitExtVectorElementExpr(
template <class Emitter>
bool Compiler<Emitter>::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
+ const Expr *SubExpr = E->getSubExpr();
if (!E->isExpressibleAsConstantInitializer())
- return this->emitInvalid(E);
+ return this->discard(SubExpr) && this->emitInvalid(E);
- return this->delegate(E->getSubExpr());
+ return this->delegate(SubExpr);
}
template <class Emitter>
diff --git a/clang/test/AST/Interp/objc.mm b/clang/test/AST/Interp/objc.mm
index 6402c8ae098fd..f6c4ba12dc5d1 100644
--- a/clang/test/AST/Interp/objc.mm
+++ b/clang/test/AST/Interp/objc.mm
@@ -11,3 +11,28 @@ @interface NSString
@end
constexpr NSString *t0 = @"abc";
constexpr NSString *t1 = @("abc");
+
+
+#if __LP64__
+typedef unsigned long NSUInteger;
+typedef long NSInteger;
+#else
+typedef unsigned int NSUInteger;
+typedef int NSInteger;
+#endif
+
+
+@class NSNumber;
+
+
+@interface NSObject
++ (NSObject*)nsobject;
+@end
+
+@interface NSNumber : NSObject
++ (NSNumber *)numberWithInt:(int)value;
+@end
+
+int main(void) {
+ NSNumber *bv = @(1391126400 * 1000); // both-warning {{overflow in
expression; result is -443'003'904 with type 'int'}}
+}
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