diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
-rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index 19cfffd81c4..814eda4381b 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -4114,15 +4114,13 @@ CodeGenModule::GetAddrOfConstantStringFromLiteral(const StringLiteral *S, StringRef GlobalVariableName; llvm::GlobalValue::LinkageTypes LT; - // Mangle the string literal if the ABI allows for it. However, we cannot - // do this if we are compiling with ASan or -fwritable-strings because they - // rely on strings having normal linkage. - if (!LangOpts.WritableStrings && - !LangOpts.Sanitize.has(SanitizerKind::Address) && - getCXXABI().getMangleContext().shouldMangleStringLiteral(S)) { + // Mangle the string literal if that's how the ABI merges duplicate strings. + // Don't do it if they are writable, since we don't want writes in one TU to + // affect strings in another. + if (getCXXABI().getMangleContext().shouldMangleStringLiteral(S) && + !LangOpts.WritableStrings) { llvm::raw_svector_ostream Out(MangledNameBuffer); getCXXABI().getMangleContext().mangleStringLiteral(S, Out); - LT = llvm::GlobalValue::LinkOnceODRLinkage; GlobalVariableName = MangledNameBuffer; } else { |