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from 8e340d1d9d9 Try to fix the assert in Alignment::alignAddr to work on 32-bit new 3400920f530 Reland: Dead Virtual Function Elimination
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Summary of changes: docs/LangRef.rst | 9 ++ docs/TypeMetadata.rst | 64 +++++++++ include/llvm/Analysis/TypeMetadataUtils.h | 2 + include/llvm/IR/FixedMetadataKinds.def | 1 + include/llvm/IR/GlobalObject.h | 16 +++ include/llvm/Transforms/IPO/GlobalDCE.h | 14 ++ lib/Analysis/TypeMetadataUtils.cpp | 32 +++++ lib/IR/Metadata.cpp | 18 +++ lib/LTO/LTO.cpp | 2 + lib/LTO/LTOCodeGenerator.cpp | 2 + lib/Transforms/IPO/GlobalDCE.cpp | 156 ++++++++++++++++++++- lib/Transforms/IPO/WholeProgramDevirt.cpp | 41 +----- test/LTO/ARM/lto-linking-metadata.ll | 19 +++ test/ThinLTO/X86/lazyload_metadata.ll | 4 +- .../GlobalDCE/virtual-functions-base-call.ll | 78 +++++++++++ .../virtual-functions-base-pointer-call.ll | 118 ++++++++++++++++ .../GlobalDCE/virtual-functions-derived-call.ll | 78 +++++++++++ .../virtual-functions-derived-pointer-call.ll | 120 ++++++++++++++++ .../virtual-functions-visibility-post-lto.ll | 95 +++++++++++++ .../virtual-functions-visibility-pre-lto.ll | 94 +++++++++++++ test/Transforms/GlobalDCE/virtual-functions.ll | 55 ++++++++ test/Transforms/GlobalDCE/vtable-rtti.ll | 47 +++++++ test/Transforms/Internalize/vcall-visibility.ll | 64 +++++++++ 23 files changed, 1091 insertions(+), 38 deletions(-) create mode 100644 test/LTO/ARM/lto-linking-metadata.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-base-call.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-base-pointer-call.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-derived-call.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-derived-pointer-call.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-visibility-post-lto.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions-visibility-pre-lto.ll create mode 100644 test/Transforms/GlobalDCE/virtual-functions.ll create mode 100644 test/Transforms/GlobalDCE/vtable-rtti.ll create mode 100644 test/Transforms/Internalize/vcall-visibility.ll