Teresa Johnson 7cfde51c4f Improve efficiency of handling unmapped subprogram metadata ... The stripNullSubprograms function is very inefficient because it walks all subprograms in all compile units in the dest module any time a new module is linked in. For LTO in particular this will get increasingly expensive as more modules are linked. This patch improves the efficiency in several ways. The first is that no scanning is necessary when there were no unneeded subprograms identified in the first place. The second is that only the newly-linked module's compile unit metadata should be examined. Fixes PR26346. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259049 91177308-0d34-0410-b5e6-96231b3b80d8		2016-01-28 15:08:09 +00:00
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CMakeLists.txt	Slit lib/Linker in two.	2015-12-10 14:19:35 +00:00
IRMover.cpp	Improve efficiency of handling unmapped subprogram metadata	2016-01-28 15:08:09 +00:00
LinkDiagnosticInfo.h	Slit lib/Linker in two.	2015-12-10 14:19:35 +00:00
LinkModules.cpp	[ThinLTO] Do metadata linking during batch function importing	2016-01-22 00:15:53 +00:00
LLVMBuild.txt