[LoopVectorize] Propagate known metadata to vectorized instructions

There are some kinds of metadata that are safe to propagate from the scalar
instructions to the vector instructions (fpmath and tbaa currently).

Regarding TBAA, one might worry about propagating it on if-converted loads and
stores, because the metadata might have had a control dependency on the
condition, and thus actually aliased with some other non-speculated memory
access when the condition was false. However, this would be caught by the
runtime overlap checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213452 91177308-0d34-0410-b5e6-96231b3b80d8
[LoopVectorize] Use CreateAligned(Load|Store)

IRBuilder has CreateAligned(Load|Store) functions; use them and we don't need
to make a second call to setAlignment.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213453 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Implement a few simple TTI queries.

I'm not sure if these have any effect right now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213455 91177308-0d34-0410-b5e6-96231b3b80d8
Templatify RegionInfo so it works on MachineBasicBlocks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213456 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: implement range reduction for sin/cos

These instructions can only take a limited input range, and return
the constant value 1 out of range. We should do range reduction to
be able to process arbitrary values. Use a FRACT instruction after
normalization to achieve this. Also add a test for constant folding
with the lowered code with unsafe-fp-math enabled.

v2: use DAG lowering instead of intrinsic, adapt test
v3: calculate constant, fold pattern into instruction definition
v4: misc style fixes, add sin-fold testcase, cosmetics

Patch by Grigori Goronzy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213458 91177308-0d34-0410-b5e6-96231b3b80d8
XXX - Increase unroll threshold

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213459 91177308-0d34-0410-b5e6-96231b3b80d8
Fix build with GCC.

Seems like a bug in either GCC or clang, but I'm
not sure which is right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213460 91177308-0d34-0410-b5e6-96231b3b80d8
Revert accidentally committed r213459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213461 91177308-0d34-0410-b5e6-96231b3b80d8
MC: permit emitting a symbol value as section relative

This adds an optional parameter to the EmitSymbolValue method in MCStreamer to
permit emitting a symbol value as a section relative value.  This is to cover
the use in MCDwarf which should not really know about how to emit a section
relative value for a given target.

This addresses post-review comments from Eric Christopher in SVN r213275.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213463 91177308-0d34-0410-b5e6-96231b3b80d8
Sure up ownership passing of the PBQPBuilder by passing unique_ptrs by value rather than lvalue reference.

Also removes an unnecessary '.release()' that should've been a std::move
anyway. (I'm on a hunt for '.release()' calls)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213464 91177308-0d34-0410-b5e6-96231b3b80d8
Fix -Asserts build introduced since r213456.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213465 91177308-0d34-0410-b5e6-96231b3b80d8
Fix msc17 build. RegionInfo::RegionInfo::recalculate() doesn't make sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213466 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Remove dead code and add missing tests.

This probably was killed by some generic DAGCombiner
improvements in checking the TargetBooleanContents instead
of just 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213471 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Remove unused function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213472 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add missing test for concat_vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213473 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges.

Summary: This patch introduces two new iterator ranges and updates existing code to use it.  No functional change intended.

Test Plan: All tests (make check-all) still pass.

Reviewers: dblaikie

Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4481

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213474 91177308-0d34-0410-b5e6-96231b3b80d8
Remove braces around single-statement block and rangify outer loop.

This is a follow-up to r213474.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213475 91177308-0d34-0410-b5e6-96231b3b80d8
MachineRegionInfo.cpp: Another fix on MachineRegionInfo::MachineRegionInfo::recalculate() to appease msc17.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213476 91177308-0d34-0410-b5e6-96231b3b80d8
SIISelLowering.cpp: Define _USE_MATH_DEFINES to let M_PI provided on MS <cmath>.

FIXME: Would it be better to move it into configure?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213477 91177308-0d34-0410-b5e6-96231b3b80d8
Namespace cleanup (no functional change)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213478 91177308-0d34-0410-b5e6-96231b3b80d8