AArch64: correct CodeGen of MOVZ/MOVK combinations.

According to the AArch64 ELF specification (4.6.8), it's the
assembler's responsibility to make sure the shift amount is correct in
relocated MOVZ/MOVK instructions.

This wasn't being obeyed by either the MCJIT CodeGen or RuntimeDyldELF
(which happened to work out well for JIT tests). This commit should
make us compliant in this area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185360 91177308-0d34-0410-b5e6-96231b3b80d8
Don't form PPC CTR loops for over-sized exit counts

Although you can't generate this from C on PPC64, if you have a loop using a
64-bit counter on PPC32 then you can't form a CTR-based loop for it. This had
been cauing the PPCCTRLoops pass to assert.

Thanks to Joerg Sonnenberger for providing a test case!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185361 91177308-0d34-0410-b5e6-96231b3b80d8
Fix PR16508.

When phis get lowered, destination copies are inserted using an iterator that is
determined once for all phis in the block, which BuildMI interprets as a request
to insert an instruction directly before the iterator. In the case of a cyclic
phi, source copies may also be inserted directly before this iterator, which can
cause source copies to be inserted before destination copies. The fix is to keep
an iterator to the last phi and then advance it while lowering each phi in order
to insert destination copies directly after the phis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185363 91177308-0d34-0410-b5e6-96231b3b80d8
Add jump tables handling for MSP430.
Patch by Job Noorman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185364 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the build after r185363. Use llvm::next instead of raw next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185367 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the test which relies on uncommitted change


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185368 91177308-0d34-0410-b5e6-96231b3b80d8
Really fix the test. Sorry for the breakage...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185369 91177308-0d34-0410-b5e6-96231b3b80d8