Rationalize what is public in RuntimeDyldMachO and RuntimeDyldELF.

The implemented RuntimeDyldImpl interface is public. Everything else is private.
Since these classes are not inherited from (yet), there is no need to have
protected members.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180733 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Fix encoding of CF_END_{EG, R600} instructions

The EOP bit was not being encoded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180734 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Use correct CF_END instruction on Northern Island GPUs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180735 91177308-0d34-0410-b5e6-96231b3b80d8
Add getSymbolAlignment to the ObjectFile interface.

For regular object files this is only meaningful for common symbols. An object
file format with direct support for atoms should be able to provide alignment
information for all symbols.

This replaces getCommonSymbolAlignment and fixes
test-common-symbols-alignment.ll on darwin. This also includes a fix to
MachOObjectFile::getSymbolFlags. It was marking undefined symbols as common
(already tested by existing mcjit tests now that it is used).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180736 91177308-0d34-0410-b5e6-96231b3b80d8
Emit the TLS initialization function pointers into the correct section.

The `llvm.tls_init_funcs' (created by the front-end) holds pointers to the TLS
initialization functions. These need to be placed into the correct section so
that they are run before `main()'.

<rdar://problem/13733006>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180737 91177308-0d34-0410-b5e6-96231b3b80d8
Improve documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180738 91177308-0d34-0410-b5e6-96231b3b80d8
Rewrite some tests with FileCHeck in X86 codegen

- Revise previous patches of the same purpose by fixing
  *) grep <PA> | not grep <PB> semantically is not the same as
     CHECK: <PA>{{^<PB>.*$}} as the former will check all occurrences of <PA>
     while the later only check the first match. As the result, CHECK needs
     putting in all place where <PA> occurs.
  *) grep <PA> | count <N> needs a final CHECK-NOT of the same pattern.
     (As 'CHECK-<N>' is proposed for discussion, converting 'grep | count <N>'
      where N > 1 is postponed.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180742 91177308-0d34-0410-b5e6-96231b3b80d8
TBAA: remove !tbaa from testing cases if not used.

This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180743 91177308-0d34-0410-b5e6-96231b3b80d8
Duplicate a testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180744 91177308-0d34-0410-b5e6-96231b3b80d8
TBAA: remove !tbaa from testing cases if not used.

This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180745 91177308-0d34-0410-b5e6-96231b3b80d8