[clang] 0591297 - [clang][bytecode] Fix initializing primitive fields via initlist (#164789)

[via cfe-commits]

Author: Timm Baeder
Date: 2025-10-23T14:19:13+02:00
New Revision: 0591297c8aa123d9503e4706b5c45617536ec882

URL: https://github.com/llvm/llvm-project/commit/0591297c8aa123d9503e4706b5c45617536ec882
DIFF: https://github.com/llvm/llvm-project/commit/0591297c8aa123d9503e4706b5c45617536ec882.diff

LOG: [clang][bytecode] Fix initializing primitive fields via initlist (#164789)

Fixes https://github.com/llvm/llvm-project/issues/152901

Added: 
    

Modified: 
    clang/lib/AST/ByteCode/Compiler.cpp
    clang/test/AST/ByteCode/records.cpp

Removed: 
    


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diff  --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp
index f15b3c1e5aae4..b484ca8ce038a 100644
--- a/clang/lib/AST/ByteCode/Compiler.cpp
+++ b/clang/lib/AST/ByteCode/Compiler.cpp
@@ -1842,7 +1842,6 @@ bool Compiler<Emitter>::visitInitList(ArrayRef<const Expr *> Inits,
                                   const Expr *Init, PrimType T,
                                   bool Activate = false) -> bool {
       InitStackScope<Emitter> ISS(this, isa<CXXDefaultInitExpr>(Init));
-      InitLinkScope<Emitter> ILS(this, InitLink::Field(FieldToInit->Offset));
       if (!this->visit(Init))
         return false;
 

diff  --git a/clang/test/AST/ByteCode/records.cpp b/clang/test/AST/ByteCode/records.cpp
index 48cf81182c1de..5040b54de3229 100644
--- a/clang/test/AST/ByteCode/records.cpp
+++ b/clang/test/AST/ByteCode/records.cpp
@@ -1840,3 +1840,11 @@ namespace DiamondDowncast {
   constexpr Middle2 &fail = (Middle2&)top1; // both-error {{must be initialized by a constant expression}} \
                                             // both-note {{cannot cast object of dynamic type 'const Bottom' to type 'Middle2'}}
 }
+
+namespace PrimitiveInitializedByInitList {
+  constexpr struct {
+    int a;
+    int b{this->a};
+  } c{ 17 };
+  static_assert(c.b == 17, "");
+}