TableGen: allow use of uint64_t for available features mask.

ARM in particular is getting dangerously close to exceeding 32 bits worth of
possible subtarget features. When this happens, various parts of MC start to
fail inexplicably as masks get truncated to "unsigned".

Mostly just refactoring at present, and there's probably no way to test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215887 91177308-0d34-0410-b5e6-96231b3b80d8
Silencing an MSVC warning about loop variable conflicting with a variable from an outer scope. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215888 91177308-0d34-0410-b5e6-96231b3b80d8
AVX-512: Fixed a bug in emitting compare for MVT:i1 type.
Added a test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215889 91177308-0d34-0410-b5e6-96231b3b80d8
[ARM,AArch64] Do not tail-call to an externally-defined function with weak linkage

Externally-defined functions with weak linkage should not be
tail-called on ARM or AArch64, as the AAELF spec requires normal calls
to undefined weak functions to be replaced with a NOP or jump to the
next instruction. The behaviour of branch instructions in this
situation (as used for tail calls) is implementation-defined, so we
cannot rely on the linker replacing the tail call with a return.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215890 91177308-0d34-0410-b5e6-96231b3b80d8
Teach the AArch64 backend to handle f16

This allows the AArch64 backend to handle fadd, fsub, fmul and fdiv
operations on f16 (half-precision) types by promoting to f32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215891 91177308-0d34-0410-b5e6-96231b3b80d8
Disabling an MSVC warning ('var' : definition from the for loop is ignored; the definition from the enclosing scope is used) which will trigger false positives more than true positives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215895 91177308-0d34-0410-b5e6-96231b3b80d8
Make use of isAtLeastRelease/Acquire in the ARM/AArch64 backends

Summary:
Make use of isAtLeastRelease/Acquire in the ARM/AArch64 backends
These helper functions are introduced in D4844.
Depends D4844

Test Plan: make check-all passes

Reviewers: jfb

Subscribers: aemerson, llvm-commits, mcrosier, reames

Differential Revision: http://reviews.llvm.org/D4937

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215902 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Move instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215904 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Arithmetic instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215905 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Logic instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215906 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Control transfer instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215907 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: String instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215908 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Synchronization instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215909 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer instructions.
Sub-group: Other instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215910 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Floating Point x87 instructions.
Sub-group: Move instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215911 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Floating Point x87 instructions.
Sub-group: Arithmetic instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215912 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Floating Point x87 instructions.
Sub-group: Math instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215913 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer MMX and XMM instructions.
Sub-group: Move instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215914 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer MMX and XMM instructions.
Sub-group: Arithmetic instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215915 91177308-0d34-0410-b5e6-96231b3b80d8
[X86][Haswell][SchedModel] Add architecture specific scheduling models.
Group: Integer MMX and XMM instructions.
Sub-group: Logic instructions.

<rdar://problem/15607571>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215916 91177308-0d34-0410-b5e6-96231b3b80d8