Author: Timm Bäder
Date: 2024-02-26T13:16:35+01:00
New Revision: af971396a9c77a57eb66fcb7eac3f671a7084680

URL: 
https://github.com/llvm/llvm-project/commit/af971396a9c77a57eb66fcb7eac3f671a7084680
DIFF: 
https://github.com/llvm/llvm-project/commit/af971396a9c77a57eb66fcb7eac3f671a7084680.diff

LOG: [clang][Interp] Handle missing Lambda field initializer

Added: 
    

Modified: 
    clang/lib/AST/Interp/ByteCodeExprGen.cpp
    clang/test/SemaCXX/cxx1z-lambda-star-this.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp 
b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index b5402ec8caaec6..e96afb1078cc79 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1731,6 +1731,9 @@ bool ByteCodeExprGen<Emitter>::VisitLambdaExpr(const 
LambdaExpr *E) {
     const Expr *Init = *CaptureInitIt;
     ++CaptureInitIt;
 
+    if (!Init)
+      continue;
+
     if (std::optional<PrimType> T = classify(Init)) {
       if (!this->visit(Init))
         return false;

diff  --git a/clang/test/SemaCXX/cxx1z-lambda-star-this.cpp 
b/clang/test/SemaCXX/cxx1z-lambda-star-this.cpp
index 95bc32b603ddf0..45b78139d0b018 100644
--- a/clang/test/SemaCXX/cxx1z-lambda-star-this.cpp
+++ b/clang/test/SemaCXX/cxx1z-lambda-star-this.cpp
@@ -3,6 +3,11 @@
 // RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks -fms-extensions 
%s -DMS_EXTENSIONS
 // RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks 
-fdelayed-template-parsing -fms-extensions %s -DMS_EXTENSIONS 
-DDELAYED_TEMPLATE_PARSING
 
+// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks -emit-llvm-only 
%s -fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks 
-fdelayed-template-parsing %s -DDELAYED_TEMPLATE_PARSING 
-fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks -fms-extensions 
%s -DMS_EXTENSIONS -fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks 
-fdelayed-template-parsing -fms-extensions %s -DMS_EXTENSIONS 
-DDELAYED_TEMPLATE_PARSING -fexperimental-new-constant-interpreter
+
 template <class, class>
 constexpr bool is_same = false;
 template <class T>


        
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