Fangrui Song b3b970744d [ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags ... Imported functions and variable get the visibility from the module supplying the definition. However, non-imported definitions do not get the visibility from (ELF) the most constraining visibility among all modules (Mach-O) the visibility of the prevailing definition. This patch * adds visibility bits to GlobalValueSummary::GVFlags * computes the result visibility and propagates it to all definitions Protected/hidden can imply dso_local which can enable some optimizations (this is stronger than GVFlags::DSOLocal because the implied dso_local can be leveraged for ELF -shared while default visibility dso_local has to be cleared for ELF -shared). Note: we don't have summaries for declarations, so for ELF if a declaration has the most constraining visibility, the result visibility may not be that one. Differential Revision: https://reviews.llvm.org/D92900		2021-01-27 10:43:51 -08:00
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Caching.cpp	[NFC] Reduce include files dependency and AA header cleanup (part 2).	2020-12-17 14:04:48 +03:00
CMakeLists.txt	llvmbuildectomy - replace llvm-build by plain cmake	2020-11-13 10:35:24 +01:00
LTO.cpp	[ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags	2021-01-27 10:43:51 -08:00
LTOBackend.cpp	[LTO] Add support for existing Config::Freestanding option.	2021-01-22 13:45:39 +00:00
LTOCodeGenerator.cpp	[LTO] Move DisableVerify setting to LTOCodeGenerator class (NFC).	2021-01-24 14:14:40 +00:00
LTOModule.cpp	[Triple][MachO] Define "arm64e", an AArch64 subarch for Pointer Auth.	2020-12-03 07:53:59 -08:00
SummaryBasedOptimizations.cpp	Add missing includes needed to prune LLVMContext.h include, NFC	2019-11-14 15:23:15 -08:00
ThinLTOCodeGenerator.cpp	[ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags	2021-01-27 10:43:51 -08:00
UpdateCompilerUsed.cpp	TargetLowering.h - remove unnecessary TargetMachine.h include. NFC	2020-05-23 19:49:38 +01:00