Differential Revision: https://reviews.llvm.org/D22688

llvm-svn: 276449

Summary:
The llvm.invariant.start and llvm.invariant.end intrinsics currently
support specifying invariant memory objects only in the default address
space.

With this change, these intrinsics are overloaded for any adddress space
for memory objects
and we can use these llvm invariant intrinsics in non-default address
spaces.

Example: llvm.invariant.start.p1i8(i64 4, i8 addrspace(1)* %ptr)

This overloaded intrinsic is needed for representing final or invariant
memory in managed languages.

Reviewers: apilipenko, reames

Subscribers: llvm-commits
llvm-svn: 276447

Hexagon backend uses LoopDataPrefetch pass that is defined in Scalar.

llvm-svn: 276441

The size can exceed s_movk_i32's limit, and we don't
want to use it this early since it inhibits optimizations.

This should probably be merged to the release branch.

llvm-svn: 276438

llvm-svn: 276437

Remove dead code from r600 intrinsic removal.
Remove unset members, rename StackSize to be less ambiguous.

llvm-svn: 276436

R600's i1 fp_to_uint selected but was incorrect according to
what instcombine constant folds to.

llvm-svn: 276435

llvm-svn: 276434

llvm-svn: 276433

An extension of D19978, this patch replaces the default BITREVERSE evaluation of individual bit masks+shifts with block mask+shifts when we have integer elements of power-of-2 bits in size.

After calling BSWAP to reverse the order of the constituent bytes (which typically follows a similar approach), every neighbouring 4-bits, 2-bits and finally 1-bit pairs are masked off and swapped over with shifts.

In doing so we can significantly reduce the number of operations required.

Differential Revision: https://reviews.llvm.org/D21578

llvm-svn: 276432

This allows ErrorAsOutParameter to work better with "optional" errors. For
example, consider a function where for certain input values it is known that
the function can't fail. This can now be written as:

Result foo(Arg X, Error *Err) {
  ErrorAsOutParameter EAO(Err);

  if (<Error Condition>) {
    if (Err)
      *Err = <report error>;
    else
      llvm_unreachable("Unexpected failure!");
  }
}

Rather than having to construct an ErrorAsOutParameter under every conditional
where Err is known to be non-null.

llvm-svn: 276430

- FuncNode::findBlock traverses the function every time. Avoid using it,
  and keep a cache of block addresses in DataFlowGraph instead.
- The operator[] in the map of definition stacks was very slow. Replace
  the map with unordered_map.

llvm-svn: 276429

This facilitates code reuse between the builder classes and the
"frozen" read only versions of the classes used for parsing
existing PDB files.

llvm-svn: 276427

This implements support for writing compiland and compiland source
file info to a binary PDB.  This is tested by adding support for
dumping these fields from an existing PDB to yaml, reading them
back in, and dumping them again and verifying the values are as
expected.

llvm-svn: 276426

llvm-svn: 276422

llvm-svn: 276419

As reported on PR26235, we don't currently make use of the VBROADCASTF128/VBROADCASTI128 instructions (or the AVX512 equivalents) to load+splat a 128-bit vector to both lanes of a 256-bit vector.

This patch enables lowering from subvector insertion/concatenation patterns and auto-upgrades the llvm.x86.avx.vbroadcastf128.pd.256 / llvm.x86.avx.vbroadcastf128.ps.256 intrinsics to match.

We could possibly investigate using VBROADCASTF128/VBROADCASTI128 to load repeated constants as well (similar to how we already do for scalar broadcasts).

Reapplied with fix for PR28657 - removed intrinsic definitions (clang companion patch to be be submitted shortly).

Differential Revision: https://reviews.llvm.org/D22460

llvm-svn: 276416

llvm-svn: 276410

It caused PR28657.

This reverts commit r276281.

llvm-svn: 276405

Summary:

When giving the following command:
% llvm-cov report -instr-profile=default.profraw

llvm-cov will give the following error message:

>llvm-cov report: Not enough positional command line arguments specified!
>Must specify at least 1 positional arguments: See: orbis-llvm-cov report -help

This patch changes the error message from  '1 positional arguments'
to '1 positional argument'.

Differential Revision: https://reviews.llvm.org/D22621

llvm-svn: 276404

functions so that the size computation is available not only in ConstantIslands
but in other passes as well.

Differential Revision: https://reviews.llvm.org/D22640

llvm-svn: 276399

Differential Revision: https://reviews.llvm.org/D19906

llvm-svn: 276397

llvm-svn: 276394

llvm-svn: 276393

llvm-svn: 276392

llvm-svn: 276391

llvm-svn: 276390

Just because we can constant fold the result of an instruction does not
imply that we can delete the instruction.  It may have side effects.

This fixes PR28655.

llvm-svn: 276389

llvm-svn: 276388

This change adds a hasFileAtIndex method. getChildDeclContext can first call this method, and if it returns true it knows it can then lookup the resolved path cache for the given file index. If we hit that cache then we don't even have to call getFileNameByIndex.

Running dsymutil against the swift executable built from github gives a 20% performance improvement without any change in the binary.

Differential Revision: https://reviews.llvm.org/D22655

Reviewed by friss.

llvm-svn: 276380

Summary:
Clang inserts GetElementPtrInst so findAllocaForValue was not
able to find allocas.

PR27453

Reviewers: kcc, eugenis

Differential Revision: https://reviews.llvm.org/D22657

llvm-svn: 276374

If `-irce-skip-profitability-checks` is passed in, IRCE will kick in in
all cases where it is legal for it to kick in.  This flag is intended to
help diagnose and analyse performance issues.

llvm-svn: 276372

llvm-svn: 276368

Use the machinery in MathExtras instead of rolling it by hand.

This fixes PR28624.

llvm-svn: 276366

llvm-svn: 276364

llvm-svn: 276362

Almost all of these folds require changes to allow vector types. 
Splitting up the logic should make that easier to do incrementally.

llvm-svn: 276360

Do not clone stored values unless they are GEPs that are special cased to avoid
hoisting them without hoisting their associated ld/st.

Differential revision: https://reviews.llvm.org/D22652

llvm-svn: 276358

This eliminates unncessary calls and init functions.

Differential Revision: http://reviews.llvm.org/D22613

llvm-svn: 276354

Differential Revision: https://reviews.llvm.org/D22648

llvm-svn: 276349