en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp#a45f713c add option to instantiate templates already in the PCHAdd -fpch-instantiate-templates which makes template instantiations beperformed already in the PCH instead of it being done in every singlefile that uses the PCH (but every single file will still do it as wellin order to handle its own instantiations). I can see 20-30% buildtime saved with the few tests I've tried.The change may reorder compiler output and also generated code, butshould be generally safe and produce functionally identical code.There are some rare cases that do not compile with it,such as test/PCH/pch-instantiate-templates-forward-decl.cpp. Iftemplate instantiation bailed out instead of reporting the error,these instantiations could even be postponed, which would make themwork.Enable this by default for clang-cl. MSVC creates PCHs by compilingthem using an empty .cpp file, which means templates are instantiatedwhile building the PCH and so the .h needs to be self-contained,making test/PCH/pch-instantiate-templates-forward-decl.cpp to failwith MSVC anyway. So the option being enabled for clang-cl matches this.Differential Revision: https://reviews.llvm.org/D69585 List of files: /llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp Sun, 19 Apr 2020 15:49:47 +0000 Luboš Luňák <l.lunak@centrum.cz> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp#151c4568 [c++1z] P0195R2: Support pack-expansion of using-declarations.This change introduces UsingPackDecl as a marker for the set of UsingDeclsproduced by pack expansion of a single (unresolved) using declaration. This isnot strictly necessary (we just need to be able to map from the original usingdeclaration to its expansions somehow), but it's useful to maintain theinvariant that each declaration reference instantiates to refer to onedeclaration.This is a re-commit of r290080 (reverted in r290092) with a fix for ause-after-lifetime bug.llvm-svn: 290203 List of files: /llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp Tue, 20 Dec 2016 21:35:28 +0000 Richard Smith <richard-llvm@metafoo.co.uk> http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp#22a250cd [c++1z] P0195R2: Support pack-expansion of using-declarations.This change introduces UsingPackDecl as a marker for the set of UsingDeclsproduced by pack expansion of a single (unresolved) using declaration. This isnot strictly necessary (we just need to be able to map from the original usingdeclaration to its expansions somehow), but it's useful to maintain theinvariant that each declaration reference instantiates to refer to onedeclaration.llvm-svn: 290080 List of files: /llvm-project-15.0.7/clang/test/PCH/cxx1z-using-declaration.cpp Mon, 19 Dec 2016 04:08:53 +0000 Richard Smith <richard-llvm@metafoo.co.uk>