docs: update docs/README.txt and make it useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171353 91177308-0d34-0410-b5e6-96231b3b80d8
Merge SSE and AVX instruction definitions for PSHUFD/PSHUFHW/PSHUFLW.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171355 91177308-0d34-0410-b5e6-96231b3b80d8
Merge SSE and AVX instruction definitions for scalar forms of SQRT, RSQRT, and RCP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171356 91177308-0d34-0410-b5e6-96231b3b80d8
Rename VMCore directory to IR.

Aside from moving the actual files, this patch only updates the build
system and the source file comments under lib/... that are relevant.

I'll be updating other docs and other files in smaller subsequnet
commits.

While I've tried to test this, but it is entirely possible that there
will still be some build system fallout.

Also, note that I've not changed the library name itself: libLLVMCore.a
is still the library name. I'd be interested in others' opinions about
whether we should rename this as well (I think we should, just not sure
what it might break)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171359 91177308-0d34-0410-b5e6-96231b3b80d8
Update the configure scripts as well as the makefiles for the move from
VMCore to IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171360 91177308-0d34-0410-b5e6-96231b3b80d8
Update the root Makefile for VMCore -> IR. Missed by my original search
sadly, and is somewhat surprising in general.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171361 91177308-0d34-0410-b5e6-96231b3b80d8
Resort the #include lines in include/... and lib/... with the
utils/sort_includes.py script.

Most of these are updating the new R600 target and fixing up a few
regressions that have creeped in since the last time I sorted the
includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171362 91177308-0d34-0410-b5e6-96231b3b80d8
Sort a few more #include lines in tools/... unittests/... and utils/...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171363 91177308-0d34-0410-b5e6-96231b3b80d8
Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
Update the examples for the new header file locations.

Sorry for the fallout here, I forgot the examples aren't built by
default any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171371 91177308-0d34-0410-b5e6-96231b3b80d8
Actually update the CMake and Makefile builds correctly, and update the
code that includes Intrinsics.gen directly.

This never showed up in my testing because the old Intrinsics.gen was
still kicking around in the make build system and was correct there. =[
Thankfully, some of the bots to clean rebuilds and that caught this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171373 91177308-0d34-0410-b5e6-96231b3b80d8
AVX: Fix a bug in WidenMaskArithmetic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171397 91177308-0d34-0410-b5e6-96231b3b80d8
AVX: Fix a bug in WidenMaskArithmetic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171398 91177308-0d34-0410-b5e6-96231b3b80d8
- Add comment to two functions which might be considered as dead code. 
- Fix a typo


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171399 91177308-0d34-0410-b5e6-96231b3b80d8
Don't #include stuff outside the include guards.

This defeats the include-guard optimization when parsing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171405 91177308-0d34-0410-b5e6-96231b3b80d8
[Support][Endian] Add support for specifying the alignment and native unaligned types.

* Add support for specifying the alignment to use.
* Add the concept of native endianness. Used for unaligned native types.

The native alignment and read/write simplification is based on a patch by Richard Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171406 91177308-0d34-0410-b5e6-96231b3b80d8
Restrict __builtin_assume_aligned to gcc 4.7+

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171408 91177308-0d34-0410-b5e6-96231b3b80d8
Use a bool instead of a bitfield in llvm/ADT/Optional.

Fixes Valgrind failures and removes bitwise operations that don't provide any benefit.
Valgrind failures reported by NAKAMURA Takumi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171413 91177308-0d34-0410-b5e6-96231b3b80d8
Adds missing aliases for fcom and fcomp instructions without arguments.
Patch by Michael M Kuperstein!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171414 91177308-0d34-0410-b5e6-96231b3b80d8
DAGCombiner: Avoid generating illegal vector INT_TO_FP nodes

DAGCombiner::reduceBuildVecConvertToConvertBuildVec() was making two
mistakes:

1. It was checking the legality of scalar INT_TO_FP nodes and then generating
vector nodes.

2. It was passing the result value type to
TargetLoweringInfo::getOperationAction() when it should have been
passing the value type of the first operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171420 91177308-0d34-0410-b5e6-96231b3b80d8