DIEHash: Refactor ref attribute hashing into smaller functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193360 91177308-0d34-0410-b5e6-96231b3b80d8
DIEHash: Do not use shallow type hashing for unnamed types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193361 91177308-0d34-0410-b5e6-96231b3b80d8
DIEHash: Const correct and use references where non-null/non-rebound.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193363 91177308-0d34-0410-b5e6-96231b3b80d8
Formatting and whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193370 91177308-0d34-0410-b5e6-96231b3b80d8
Update misleading comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193371 91177308-0d34-0410-b5e6-96231b3b80d8
Grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193372 91177308-0d34-0410-b5e6-96231b3b80d8
Fix name of variable in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193373 91177308-0d34-0410-b5e6-96231b3b80d8
DWARF emission: Remove unnecessary/redundant DIE reference code

The default case at the end of the switch handles this just fine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193374 91177308-0d34-0410-b5e6-96231b3b80d8
lto.h: Use lto_bool_t instead of int to restore the ABI

This reverts commit r193255 and instead creates an lto_bool_t typedef
that points to bool, _Bool, or unsigned char depending on what is
available.  Only recent versions of MSVC provide a stdbool.h header.

Reviewers: rafael.espindola

Differential Revision: http://llvm-reviews.chandlerc.com/D2019

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193377 91177308-0d34-0410-b5e6-96231b3b80d8
MCStreamer: Reimplement the virtual EmitRawText as a protected member, EmitRawTextImpl, to avoid string literal ambiguities

Also improve the implementation of EmitRawText(Twine) so it doesn't
bother using the SmallString buffer if the Twine is a simple StringRef
anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193378 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: Tweak usage of '*vfp' compiler_rt functions.

Only use them if the subtarget has ARM mode, as these routines are implemented
as ARM code.

rdar://15302004

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193381 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: Test r193381 a bit more thoroughly.

Make sure we're predicating right based on CPU even if the triple is 'wrong'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193382 91177308-0d34-0410-b5e6-96231b3b80d8
Support for reading program counts in llvm-cov.

llvm-cov will now be able to read program counts from the GCDA file and
output it in the same format as gcov. The program summary tag was
identified from gcov-io.h as "\0\0\0\a3".

There is currently a bug in GCOVProfiling.cpp which does not generate
the
run- or program-counting IR, so this change was tested manually by
modifying the GCDA file and comparing the gcov and llvm-cov outputs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193389 91177308-0d34-0410-b5e6-96231b3b80d8
llvm-cov dump to dbgs() instead of outs().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193390 91177308-0d34-0410-b5e6-96231b3b80d8
Fix ODR violation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193391 91177308-0d34-0410-b5e6-96231b3b80d8
Optimize concat_vectors(X, undef) -> scalar_to_vector(X).
This optimization is not SSE specific so I am moving it to DAGco.
The new scalar_to_vector dag node exposed a missing pattern in the AArch64 target that I needed to add.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193393 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: tweak test to pass on all platforms

A TableGen indeterminacy means that the reason for the failure can
vary, and Windows gets the other option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193394 91177308-0d34-0410-b5e6-96231b3b80d8
LegalizeDAG: allow libcalls for max/min atomic operations

ARM processors without ldrex/strex need to be able to make libcalls for all
atomic operations, including the newer min/max versions.

The alternative would probably be expanding these operations in terms of
cmpxchg (as x86 does always), but in the configurations where this matters
code-size tends to be paramount so the libcall is more desirable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193398 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: don't expand atomicrmw inline on Cortex-M0

There's a barrier instruction so that should still be used, but most actual
atomic operations are going to need a platform decision on the correct
behaviour (either nop if single-threaded or OS-support otherwise).

rdar://problem/15287210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193399 91177308-0d34-0410-b5e6-96231b3b80d8
The FIXME was indeed fixed in the linker, comment removed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193402 91177308-0d34-0410-b5e6-96231b3b80d8