Author: Timo Stripf
Date: 2023-08-07T23:13:50Z
New Revision: 291eb2589fdc78827af6c2c858bc5e9456e3dc20

URL: 
https://github.com/llvm/llvm-project/commit/291eb2589fdc78827af6c2c858bc5e9456e3dc20
DIFF: 
https://github.com/llvm/llvm-project/commit/291eb2589fdc78827af6c2c858bc5e9456e3dc20.diff

LOG: [clang][DeclPrinter] Fix AST print to suppress output of implicit 
(non-written) constructor initializers

DeclPrinter::PrintConstructorInitializers did output non-written constructor 
initiaizers. In particular, implicit constructor initializers of base classes 
were output.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D156523

Added: 
    

Modified: 
    clang/lib/AST/DeclPrinter.cpp
    clang/test/AST/ast-print-method-decl.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/AST/DeclPrinter.cpp b/clang/lib/AST/DeclPrinter.cpp
index 0608b48f3a880e..034fc874bd882b 100644
--- a/clang/lib/AST/DeclPrinter.cpp
+++ b/clang/lib/AST/DeclPrinter.cpp
@@ -309,6 +309,8 @@ void 
DeclPrinter::PrintConstructorInitializers(CXXConstructorDecl *CDecl,
   for (const auto *BMInitializer : CDecl->inits()) {
     if (BMInitializer->isInClassMemberInitializer())
       continue;
+    if (!BMInitializer->isWritten())
+      continue;
 
     if (!HasInitializerList) {
       Proto += " : ";

diff  --git a/clang/test/AST/ast-print-method-decl.cpp 
b/clang/test/AST/ast-print-method-decl.cpp
index 928687b4b35894..37ddefcb611e18 100644
--- a/clang/test/AST/ast-print-method-decl.cpp
+++ b/clang/test/AST/ast-print-method-decl.cpp
@@ -100,3 +100,26 @@ struct DefMethodsWithoutBody {
 
   // CHECK-NEXT: };
 };
+
+
+// ---- Check that implict (non-written) constructor initializers are not 
output
+
+struct ImplicitCtorInit1 {
+  int a;
+};
+
+// CHECK: struct ImplicitCtorInit2 : ImplicitCtorInit1 {
+struct ImplicitCtorInit2 : ImplicitCtorInit1 {
+
+  // CHECK-NEXT: ImplicitCtorInit2(int *) {
+  ImplicitCtorInit2(int *) {
+  // CHECK-NEXT: }
+  }
+
+  // CHECK-NEXT: ImplicitCtorInit2(int **) : ImplicitCtorInit1() {
+  ImplicitCtorInit2(int **) : ImplicitCtorInit1() {
+  // CHECK-NEXT: }
+  }
+
+  // CHECK-NEXT: };
+};


        
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