(The Ada bindings probably need it too, but all the
obvious places to change say "do not edit this file".)
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is different from what the code now uses in a two ways: NamedMDNodes
were considered Values and included in the numbering, and the
function-local metadata counter wasn't reset between functions.
The later problem breaks lazy deserialization, so instead of trying
to emulate the old numbering, just drop the old metadata. The only
in-tree use case is debug info with LTO, where the QOI loss is
considered acceptable.
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it to be the caller's responsibility to provide a stream in binary
mode. This fixes a layering violation and avoids an outs() call.
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having the bitcode writer materialize mdnodes for all the
debug location tuples when writing out the bc file and
stores the information in a more compact form. For example,
the -O0 -g bc file for combine.c in 176.gcc shrinks from
739392 to 512096 bytes.
This concludes my planned short-term debug info work.
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Modules and ModuleProviders. Because the "ModuleProvider" simply materializes
GlobalValues now, and doesn't provide modules, it's renamed to
"GVMaterializer". Code that used to need a ModuleProvider to materialize
Functions can now materialize the Functions directly. Functions no longer use a
magic linkage to record that they're materializable; they simply ask the
GVMaterializer.
Because the C ABI must never change, we can't remove LLVMModuleProviderRef or
the functions that refer to it. Instead, because Module now exposes the same
functionality ModuleProvider used to, we store a Module* in any
LLVMModuleProviderRef and translate in the wrapper methods. The bindings to
other languages still use the ModuleProvider concept. It would probably be
worth some time to update them to follow the C++ more closely, but I don't
intend to do it.
Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735.
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isPodLike type trait. This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.
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isRawBitcode and isBitcode to allow clients to test whether a given
memory buffer holds a bitcode image.
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not 64, because we read at most 32 bits at a time. OTOH, "Result" must
be 64-bits and insertion into it must be 64-bit clean. Thanks to Ivan
Sorokin for bringing this up.
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of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.
Patches for Clang and LLVM-GCC to follow.
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BLOCKNAME and SETRECORDNAME. This allows a bitcode
file to be self describing with pretty names for
records and blocks in addition to numbers. This
enhances llvm-bcanalyzer to use this to print prettily.
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state out of the BitstreamReader class into a BitstreamCursor class.
Doing this allows the client to have multiple cursors into the same
file, each with potentially different live block stacks and
abbreviation records.
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