Author: Steve Merritt Date: 2025-07-30T09:48:06-04:00 New Revision: b47d9d033acd26e492bef9429ee9bce640be0901
URL: https://github.com/llvm/llvm-project/commit/b47d9d033acd26e492bef9429ee9bce640be0901 DIFF: https://github.com/llvm/llvm-project/commit/b47d9d033acd26e492bef9429ee9bce640be0901.diff LOG: [clang][DebugInfo] Don't emit VTable debug symbols for -gline-tables-only. (#151025) The -gline-tables-only option emits minimal debug info for functions, files and line numbers while omitting variables, parameters and most type information. VTable debug symbols are emitted to facilitate a debugger's ability to perform automatic type promotion on variables and parameters. With variables and parameters being omitted, the VTable symbols are unnecessary. Added: Modified: clang/lib/CodeGen/CGDebugInfo.cpp clang/test/CodeGenCXX/debug-info-gline-tables-only.cpp Removed: ################################################################################ diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp index 77fc3a2aee94f..7a69b5d92022b 100644 --- a/clang/lib/CodeGen/CGDebugInfo.cpp +++ b/clang/lib/CodeGen/CGDebugInfo.cpp @@ -2641,6 +2641,8 @@ void CGDebugInfo::emitVTableSymbol(llvm::GlobalVariable *VTable, const CXXRecordDecl *RD) { if (!CGM.getTarget().getCXXABI().isItaniumFamily()) return; + if (DebugKind <= llvm::codegenoptions::DebugLineTablesOnly) + return; ASTContext &Context = CGM.getContext(); StringRef SymbolName = "_vtable$"; diff --git a/clang/test/CodeGenCXX/debug-info-gline-tables-only.cpp b/clang/test/CodeGenCXX/debug-info-gline-tables-only.cpp index 9b86a49d69f5b..192169b0ab798 100644 --- a/clang/test/CodeGenCXX/debug-info-gline-tables-only.cpp +++ b/clang/test/CodeGenCXX/debug-info-gline-tables-only.cpp @@ -14,9 +14,11 @@ class E : public C { // CHECK-NOT: DW_TAG_reference type void x(const D& d); }; +// CHECK-NOT: DW_TAG_structure_type struct F { enum X { }; void func(X); + // CHECK-NOT: DW_TAG_member virtual ~F(); }; F::~F() { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
