Revert 153764 and 153761. They broke a --enable-optimized --enable-assertions
--enable-expensive-checks build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153771 91177308-0d34-0410-b5e6-96231b3b80d8
Reapply 153764 and 153761 with a fix.

Use an explicit comparator instead of the default.

The sets are sorted, but not using the default comparator. Hopefully,
this will unbreak the Linux builders.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153772 91177308-0d34-0410-b5e6-96231b3b80d8
Use SequenceToOffsetTable in emitRegisterNameString.

This allows suffix sharing in register names. (AX is a suffix of EAX).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153777 91177308-0d34-0410-b5e6-96231b3b80d8
ARM fix encoding fixup resolution for ldrd and friends.

The 8-bit payload is not contiguous in the opcode. Move the upper nibble
over 4 bits into the correct place.

rdar://11158641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153780 91177308-0d34-0410-b5e6-96231b3b80d8
Rip out emission of the regIsInRegClass function for the asm printer.

It's slow, bloated and completely redundant with MCRegisterClass::contains.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153782 91177308-0d34-0410-b5e6-96231b3b80d8
* Set the scope attributes for the ASM symbol we added to be the value passed
  into the function.
* Reorder some header files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153783 91177308-0d34-0410-b5e6-96231b3b80d8
Add more debugging output to ARMConstantIslandPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153788 91177308-0d34-0410-b5e6-96231b3b80d8
Add a 2 byte safety margin in offset computations.

ARMConstantIslandPass still has bugs where jump table compression can
cause constant pool entries to go out of range.

Add a safety margin of 2 bytes when placing constant islands, but use
the real max displacement for verification.

<rdar://problem/11156595>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153789 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce Register Units: Give each leaf register a number.

First small step toward modeling multi-register multi-pressure. In the
future, register units can also be used to model liveness and
aliasing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153794 91177308-0d34-0410-b5e6-96231b3b80d8
Select static relocation model if it is jitting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153795 91177308-0d34-0410-b5e6-96231b3b80d8
comment typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153796 91177308-0d34-0410-b5e6-96231b3b80d8
Correctly vectorize powi.

The powi intrinsic requires special handling because it always takes a single
integer power regardless of the result type. As a result, we can vectorize
only if the powers are equal. Fixes PR12364.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153797 91177308-0d34-0410-b5e6-96231b3b80d8
I noticed in passing that the Metadata getIfExists method was creating a new
node and returning it if one didn't exist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153798 91177308-0d34-0410-b5e6-96231b3b80d8
FileCheck-ize this test, and generally tidy it up prior to changing
things around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153799 91177308-0d34-0410-b5e6-96231b3b80d8
Clean up the naming in this test. Someone pointed this out in review at
one point, and I forgot to go back and clean it up. Sorry about that. =/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153801 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup whitespace and remove unneeded 'extern' keyword on function definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153802 91177308-0d34-0410-b5e6-96231b3b80d8
Free the codegen options when deleting LTO code generator object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153803 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153804 91177308-0d34-0410-b5e6-96231b3b80d8
These strings aren't 'const char *' but 'char *'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153805 91177308-0d34-0410-b5e6-96231b3b80d8
Internalize: Remove reference of @llvm.noinline, it was replaced with the noinline attribute a long time ago.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153806 91177308-0d34-0410-b5e6-96231b3b80d8