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| author | David Majnemer <david.majnemer@gmail.com> | 2015-03-18 03:56:27 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-03-18 03:56:27 +0000 |
| commit | 4deaac780c9e84aeb46fa9d4ce75870d95f6e436 (patch) | |
| tree | 7a167da148cef1270caa027fa48b844c0a114a82 /clang/lib/AST/MicrosoftMangle.cpp | |
| parent | 2ae0a1eafc1133b00580656f107cc976d3cb422a (diff) | |
| download | bcm5719-llvm-4deaac780c9e84aeb46fa9d4ce75870d95f6e436.tar.gz bcm5719-llvm-4deaac780c9e84aeb46fa9d4ce75870d95f6e436.zip | |
MS ABI: Empty pack expansions had their mangling changed in 2013->2015
We used to support the 2013 mangling and changed it to the more
reasonable 2015 mangling. Let's make the mangling conditional on what
version of MSVC is targeted.
This fixes PR21888.
llvm-svn: 232609
Diffstat (limited to 'clang/lib/AST/MicrosoftMangle.cpp')
| -rw-r--r-- | clang/lib/AST/MicrosoftMangle.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp index b8dd72f5e3d..563ea7ffc86 100644 --- a/clang/lib/AST/MicrosoftMangle.cpp +++ b/clang/lib/AST/MicrosoftMangle.cpp @@ -1203,7 +1203,11 @@ void MicrosoftCXXNameMangler::mangleTemplateArg(const TemplateDecl *TD, if (TemplateArgs.empty()) { if (isa<TemplateTypeParmDecl>(Parm) || isa<TemplateTemplateParmDecl>(Parm)) - Out << "$$V"; + // MSVC 2015 changed the mangling for empty expanded template packs, + // use the old mangling for link compatibility for old versions. + Out << (Context.getASTContext().getLangOpts().isCompatibleWithMSVC(19) + ? "$$V" + : "$$$V"); else if (isa<NonTypeTemplateParmDecl>(Parm)) Out << "$S"; else |
