Teresa Johnson 3011017ecc Restore "Function bitcode index in Value Symbol Table and lazy reading support" ... This reverts commit r247898 (which reverted r247894). Patch fixed to address two issues exposed by buildbots: - unused variable warning in NDEBUG mode - std::initializer_list lifetime issue causing test failures Original Summary: Support for including the function bitcode indices in the Value Symbol Table. This requires writing the VST after the function blocks, which in turn requires a new VST forward declaration record encoding the offset of the full VST (which is backpatched to contain the offset after the VST is written). This patch also enables the lazy function reader to use the new function indices out of the VST. This support will be used by ThinLTO as well, which will be in a follow on patch. Backwards compatibility with older bitcode files is maintained. A new test is also included. The bitcode format (used for the lazy reader as well as the upcoming ThinLTO patches) came out of discussions with Duncan and others and is described here: https://drive.google.com/file/d/0B036uwnWM6RWdnBLakxmeDdOeXc/view Reviewers: dexonsmith, davidxl, joker.eph Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12536 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247927 91177308-0d34-0410-b5e6-96231b3b80d8		2015-09-17 20:12:00 +00:00
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Reader	Restore "Function bitcode index in Value Symbol Table and lazy reading support"	2015-09-17 20:12:00 +00:00
Writer	Restore "Function bitcode index in Value Symbol Table and lazy reading support"	2015-09-17 20:12:00 +00:00
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