Derive MDNode from MetadataBase instead of Constant. Emit MDNodes into METADATA_BLOCK in bitcode file.

llvm-svn: 76834

Introduce MetadataBase, a base class for MDString and MDNode.
Derive MDString directly from MetadataBase.
Introduce new bitcode block to hold metadata.

llvm-svn: 76759

Assembly and Bitcode support for unsigned/signed overflow flags and
exact sdiv flags.

llvm-svn: 76475

Add plumbing for the `linker_private' linkage type. This type is meant for
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly usefu

Add plumbing for the `linker_private' linkage type. This type is meant for
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385

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Revert yesterday's change by removing the LLVMContext parameter to AllocaInst and MallocInst.

llvm-svn: 75863

Move EVER MORE stuff over to LLVMContext.

llvm-svn: 75703

This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?

llvm-svn: 75200

Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.

llvm-svn: 75025

Remove the vicmp and vfcmp instructions. Because we never had a release with
these instructions, no autoupgrade or backwards compatibility support is
provided.

llvm-svn: 74991

Push LLVMContext through GlobalVariables and IRBuilder.

llvm-svn: 74985

LLVMContext-ify the bitcode reader.

llvm-svn: 74942

!"i" is a valid MDString.

llvm-svn: 74881

Make the use of const with respect to LLVMContext sane. Hopefully this is the last time, for the
moment, that I will need to make far-reaching changes.

llvm-svn: 74655

Hold the LLVMContext by reference rather than by pointer.

llvm-svn: 74640

Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot
of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.

Patches

Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot
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.

llvm-svn: 74614

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Fix PR4336: Iterating over use-def chains doesn't seem to be deterministic.

The problem was that BitcodeReader::materializeModule would read functions
from the bc file in densemap pointer key order

Fix PR4336: Iterating over use-def chains doesn't seem to be deterministic.

The problem was that BitcodeReader::materializeModule would read functions
from the bc file in densemap pointer key order (doubly non-deterministic!),
which would cause the use-def chains to be set up for globals in
non-determinstic order. Non-determinstic use/def chains can cause
nondeterminism in many places down-stream.

Many thanks to Julien Lerouge for putting together the pass in the PR that
shows the issue!

llvm-svn: 73470

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Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve

Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897

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Update the bitcode reader to support reading .bc files where the embedded
metadata references non-Constant values such as instructions.

llvm-svn: 72685

Fix typo in error message.

llvm-svn: 72659

Give embedded metadata its own type instead of relying on EmptyStructTy.

llvm-svn: 72610

Make MDNode use CallbackVH. Also change MDNode to store Value* instead of
Constant* in preperation of a future change to support holding non-Constants
in an MDNode.

llvm-svn: 71407

Make a major API change to BitstreamReader: split all the reading
state out of the BitstreamReader class into a BitstreamCursor class.
Doing this allows the client to have multiple cursors into the s

Make a major API change to BitstreamReader: split all the reading
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.

llvm-svn: 70157

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Add a new "available_externally" linkage type. This is intended
to support C99 inline, GNU extern inline, etc. Related bugzilla's
include PR3517, PR3100, & PR2933. Nothing uses this yet, but it
ap

Add a new "available_externally" linkage type. This is intended
to support C99 inline, GNU extern inline, etc. Related bugzilla's
include PR3517, PR3100, & PR2933. Nothing uses this yet, but it
appears to work.

llvm-svn: 68940

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Teach llvm-bcanalyzer to skip over the header we use on LLVM IR files.

llvm-svn: 68458

Add support for embedded metadata to LLVM. This introduces two new types of
Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a f

Add support for embedded metadata to LLVM. This introduces two new types of
Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a function with the same naming
restriction.

llvm-svn: 68420

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