XFAIL on windows too and document the XFAILs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186354 91177308-0d34-0410-b5e6-96231b3b80d8
Further simplify test case from r186119/r186035.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186356 91177308-0d34-0410-b5e6-96231b3b80d8
PPC: Refactoring to support subtarget feature changing

This change mirrors the changes that were made to the X86 and ARM targets to
support subtarget feature changing. As indicated in r182899, the mechanism is
still undergoing revision, and so as with the X86 and ARM targets, there is no
test case yet (there is no effective functionality change).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186357 91177308-0d34-0410-b5e6-96231b3b80d8
PR16628: Fix a bug in the code that merges compares.
Compares return i1 but they compare different types.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186359 91177308-0d34-0410-b5e6-96231b3b80d8
PEI: Support for non-zero SPAdj at beginning of a basic block.

We can have a FrameSetup in one basic block and the matching FrameDestroy
in a different basic block when we have struct byval. In that case, SPAdj
is not zero at beginning of the basic block.

Modify PEI to correctly set SPAdj at beginning of each basic block using
DFS traversal. We used to assume SPAdj is 0 at beginning of each basic block.

PEI had an assert SPAdjCount || SPAdj == 0.
If we have a Destroy <n> followed by a Setup <m>, PEI will assert failure.
We can add an extra condition to make sure the pairs are matched:
  The pairs start with a FrameSetup.
But since we are doing a much better job in the verifier, this patch removes
the check in PEI.

PR16393


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186364 91177308-0d34-0410-b5e6-96231b3b80d8
Add mingw32 to the XFAIL. I forgot about it when adding win32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186365 91177308-0d34-0410-b5e6-96231b3b80d8
Add 'const' qualifiers to static const char* variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186371 91177308-0d34-0410-b5e6-96231b3b80d8
Rename Support.TimeValue to TimeValue.time_t in unittests/Support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186372 91177308-0d34-0410-b5e6-96231b3b80d8
Fix TimeValue::toWin32Time() to be symmetric to fromWin32Time() and compatible to Win32's FILETIME.

llvm-ar is the only user of toWin32Time() (via setLastModificationAndAccessTime), and r186298 can be reverted.
It had been buggy since the initial commit.

FIXME: Could we rename {from|to}Win32Time as {from|to}Win32FILETIME in TimeValue?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186374 91177308-0d34-0410-b5e6-96231b3b80d8
unittests/Support: Add TimeValue.Win32FILETIME, corresponding to r186374.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186375 91177308-0d34-0410-b5e6-96231b3b80d8
Instead friending status, provide windows and posix constructors to file_status.

This opens the way of having static helpers in the .inc files that can
construct a file_status.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186376 91177308-0d34-0410-b5e6-96231b3b80d8
COFF: Add constants for optional data directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186377 91177308-0d34-0410-b5e6-96231b3b80d8
Add a version of sys::fs::status that uses fstat.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186378 91177308-0d34-0410-b5e6-96231b3b80d8
[Object/COFF] Add import_directory_table_entry.

Summary: Add import_directory_table_entry to use for .idata section.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1059

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186379 91177308-0d34-0410-b5e6-96231b3b80d8
Remember that we have a null terminated string.

This is a micro optimization. Instead of going char*->StringRef->Twine->char*,
go char*->Twine->char* and avoid having to copy the filename on the stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186380 91177308-0d34-0410-b5e6-96231b3b80d8
Use open+fstat instead of stat+open.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186381 91177308-0d34-0410-b5e6-96231b3b80d8
llvm/test/Object/directory.ll: Mark it as XFAIL:cygwin. Directories can be opened on cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186387 91177308-0d34-0410-b5e6-96231b3b80d8
This patch allows targets to define weather the instruction mnemonics in asm matcher tables will contain '.' character.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186388 91177308-0d34-0410-b5e6-96231b3b80d8
ARM EABI divmod support

This patch enables calls to __aeabi_idivmod when in EABI mode,
by using the remainder value returned on registers (R1),
enabled by the ARM triple "none-eabi". Note that Darwin and
GNUEABI triples will continue lowering on GNU style, that is,
using the stack for the remainder.

Still need to add SREM/UREM support fix for 64-bit lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186390 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: implement ldrex, strex and clrex intrinsics

Intrinsics already existed for the 64-bit variants, so these support operations
of size at most 32-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186392 91177308-0d34-0410-b5e6-96231b3b80d8