Enable lowering ZERO_EXTEND/ANY_EXTEND to PMOVZX from SSE4.1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166486 91177308-0d34-0410-b5e6-96231b3b80d8
Add custom UINT_TO_FP from v4i8/v4i16/v8i8/v8i16 to v4f32/v8f32

- Replace v4i8/v8i8 -> v8f32 DAG combine with custom lowering to reduce
  DAG combine overhead.
- Extend the support to v4i16/v8i16 as well.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166487 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Add an implementation of the offset operator.  This is a follow
on patch to r166433.
rdar://12470317

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166488 91177308-0d34-0410-b5e6-96231b3b80d8
Ignore unreachable blocks when doing memory dependence analysis on non-local
loads. It's not really profitable and may result in GVN going into an infinite
loop when it hits constructs like this:

     %x = gep %some.type %x, ...

Found via an LTO build of LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166490 91177308-0d34-0410-b5e6-96231b3b80d8

Use the AliasAnalysis isIdentifiedObj because it also understands mallocs and c++ news.

PR14158.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166491 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed bug in SmallDenseMap where it wouldn't leave enough space for an empty bucket if the number of values was exactly equal to the small capacity.  This led to an infinite loop when finding a non-existent element

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166492 91177308-0d34-0410-b5e6-96231b3b80d8
Change DenseMap to use a power of 2 growth if one is given instead of the next power of 2.  This was causing DenseMaps to grow 4x instead of 2x.  I'll keep an eye on the buildbots as this could impact performance

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166493 91177308-0d34-0410-b5e6-96231b3b80d8
Silence -Wsign-compare

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166494 91177308-0d34-0410-b5e6-96231b3b80d8

Make the indirect branch optimization deterministic. No functionality change.

Patch by Daniel Reynaud.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166501 91177308-0d34-0410-b5e6-96231b3b80d8
CMake: Include private headers / tablegen files in generated Xcode projects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166503 91177308-0d34-0410-b5e6-96231b3b80d8
Fix PR14161

- Check index being extracted to be constant 0 before simplfiying.
  Otherwise, retain the original sequence.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166504 91177308-0d34-0410-b5e6-96231b3b80d8
Make branch heavy code for generating marked up disassembly simpler
and easier to read by adding a couple helper functions.  Suggestion by
Chandler Carruth and seconded by Meador Inge!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166515 91177308-0d34-0410-b5e6-96231b3b80d8
[Support/StringSet] Fix memory leak when inserted key already exists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166517 91177308-0d34-0410-b5e6-96231b3b80d8
Clean up code and put transformation on (build_vec (ext x)) into a helper func



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166519 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] When parsing inline assembly we set the base register to a
non-zero value as we don't know the actual value at this point.  This is
necessary to get the matching correct in some cases.  However, the actual value
set as the base register doesn't matter, since we're just matching not emitting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166523 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Clean up comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166525 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Offset operator - the size should be based on the size of a
pointer, not the size of the variable.
Part of rdar://12470317



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166526 91177308-0d34-0410-b5e6-96231b3b80d8
Fix ODR violations: a virtual function must be defined, even if it's never
called. Provide an (asserting) definition of Operator's private destructor.
Remove destructors from all classes derived from Operator. We don't need them
for safety, because their implicit definitions would be ill-formed (they'd call
Operator's private destructor), and we don't need them to avoid emitting
vtables, because we don't do anything with Operator subclasses which would
trigger vtable instantiation.

The Operator hierarchy is still a complete disaster with regard to undefined
behavior, but this at least allows LLVM to link when using Clang's
-fcatch-undefined-behavior with a new vptr-based type checking mechanism.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166530 91177308-0d34-0410-b5e6-96231b3b80d8
Keep coding standard. Don't evaluate getNumOperands() every time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166531 91177308-0d34-0410-b5e6-96231b3b80d8
Change x86_fastcallcc to require inreg markers. This allows it to known
the difference from "int x" (which should go in registers and
"struct y {int x;}" (which should not).

Clang will be updated in the next patches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166536 91177308-0d34-0410-b5e6-96231b3b80d8