Revert "SelectionDAG: Enable (and (setcc x), (setcc y)) -> (setcc (and x, y)) for vectors"

This reverts commit r210540, adds a testcase for the regression it
caused, and marks the R600 test it was supposed to fix as XFAIL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210792 91177308-0d34-0410-b5e6-96231b3b80d8
Remove pimpl class from PassRegistry.

Since removeRegistrationListener is no longer called during static
destruction, we can get rid of the pimpl in PassRegistry.

This should clean up the code somewhat, increase clarity, and also
allows us to put the Lock as a member of the class, instead of as a
ManagedStatic.

As part of this change, the PassInfo class is moved from
PassSupport.h to its own file, to eliminate the otherwise circular
header dependency between PassRegistry.h and PassSupport.h

Reviewed by: rnk, dblaikie

Differential Revision: http://reviews.llvm.org/D4107

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210793 91177308-0d34-0410-b5e6-96231b3b80d8
adding re-include guards into lib/Support/reg*.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210794 91177308-0d34-0410-b5e6-96231b3b80d8
Remove system_error.h.

This is a minimal change to remove the header. I will remove the occurrences
of "using std::error_code" in a followup patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210803 91177308-0d34-0410-b5e6-96231b3b80d8
Trying to fix the windows build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210805 91177308-0d34-0410-b5e6-96231b3b80d8
X86: stifle GCC warning

lib/Target/X86/X86TargetTransformInfo.cpp: In member function ‘virtual unsigned int {anonymous}::X86TTI::getIntImmCost(unsigned int, unsigned int, const llvm::APInt&, llvm::Type*) const’:
lib/Target/X86/X86TargetTransformInfo.cpp:920:60: warning: enumeral and non-enumeral type in conditional expression [enabled by default]

This seems like an unhelpful warning, but there doesnt seem to be a controlling
flag, so add an explicit cast to silence the warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210806 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r210721 as it causes breakage in internal builds (and possibly GDB).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210807 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing "InitializerConstant" to global variable syntax in LangRef.

The syntax for Global Variables in LangRef is missing the initializer.
This syntax section was added in r199218 along with changes to the
dllexport/dllimport handling, and I guess it was just an oversight to omit the
initializer values. I’ve marked the initializer as optional because this syntax
is used for both declarations and definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210808 91177308-0d34-0410-b5e6-96231b3b80d8
[llvm-symbolizer] Fix parsing DW_AT_ranges in Fission skeleton compile unit DIEs.

Turns out that DW_AT_ranges_base attribute sets the offset for
DW_AT_ranges values specified in the .dwo file, but not for DW_AT_ranges specified
in the skeleton compile unit DIE in the main executable. This is extremely confusing,
and would hopefully be fixed in DWARF-5 when it's finalized. For now this
behavior makes sense, as otherwise Fission would break DWARF consumers who
doesn't know anything about DW_AT_ranges_base.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210809 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "[FastIsel][X86] Add support for lowering the first 8 floating-point arguments."

Reverting it because it breaks several tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210810 91177308-0d34-0410-b5e6-96231b3b80d8
CodeGen: enable mov.w/mov.t pairs with minsize for WoA

Windows on ARM uses COFF/PE which is intrinsically position independent.  For
the case of 32-bit immediates, use a pair-wise relocation as otherwise we may
exceed the range of operators.  This fixes a code generation crash when using
-Oz when targeting Windows on ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210814 91177308-0d34-0410-b5e6-96231b3b80d8
[FastIsel][X86] Add support for lowering the first 8 floating-point arguments.

Recommit with fixed argument attribute checking code, which is required to bail
out of all the cases we don't handle yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210815 91177308-0d34-0410-b5e6-96231b3b80d8
[FastISel][X86] Argument lowering test case

This test case is supposed to xfail, because we do not handle structs or byval
arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210816 91177308-0d34-0410-b5e6-96231b3b80d8
LangRef: clarify that global declarations can have section and alignment info.

I'm not sure what it means to set a section for a declaration in another
translation unit, but there are some tests in the tree that do it so it seems
to be legal now regardless.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210819 91177308-0d34-0410-b5e6-96231b3b80d8
Move PPCFrameLowering into PPCSubtarget from PPCTargetMachine. Use
the initializeSubtargetDependencies code to obtain an initialized
subtarget and migrate a couple of subtarget using functions to the
.cpp file to avoid circular includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210822 91177308-0d34-0410-b5e6-96231b3b80d8
Move DataLayout from the PPCTargetMachine to the subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210824 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Mostly remove remaining AMDIL intrinsics.

Delete all unused ones, and add new AMDGPU named intrinsics for
the ones that are. Handle the old AMDIL names for comptability (although
remove their GCCBuiltin names) and add tests since there weren't any
for these before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210827 91177308-0d34-0410-b5e6-96231b3b80d8
GVN: Enable value forwarding for calloc

Enable value forwarding for loads from `calloc()` without an intervening
store.

This change extends GVN to handle the following case:

    %1 = tail call noalias i8* @calloc(i64 1, i64 4)
    %2 = bitcast i8* %1 to i32*
    ; This load is trivially constant zero
    %3 = load i32* %2, align 4

This is analogous to the handling for `malloc()` in the same places.
`malloc()` returns `undef`; `calloc()` returns a zero value.  Note that
it is correct to return zero even for out of bounds GEPs since the
result of such a GEP would be undefined.

Patch by Philip Reames!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210828 91177308-0d34-0410-b5e6-96231b3b80d8
Update test case to use "not" instead of "XFAIL".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210829 91177308-0d34-0410-b5e6-96231b3b80d8
Delete trailing whitespace.

Hopefully this forces cmake to re-run.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210830 91177308-0d34-0410-b5e6-96231b3b80d8