Remove unused stdio.h includes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188626 91177308-0d34-0410-b5e6-96231b3b80d8
docs: command guide: cleanups, no text changes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188627 91177308-0d34-0410-b5e6-96231b3b80d8
Make more of the lowering helpers static. Also use MVT instead of EVT in a couple places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188629 91177308-0d34-0410-b5e6-96231b3b80d8
AVX-512: Added VMOVD, VMOVQ, VMOVSS, VMOVSD instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188637 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: make sure we keep inline asm operands tied.

When patching inlineasm nodes to use GPRPair for 64-bit values, we
were dropping the information that two operands were tied, which
effectively broke the live-interval of vregs affected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188643 91177308-0d34-0410-b5e6-96231b3b80d8
Remove SpecialCaseList::findCategory.

It turned out that I didn't need this for DFSan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188646 91177308-0d34-0410-b5e6-96231b3b80d8
DebugInfo: don't emit zero-length names for parameters

We check this in many/all other cases, just missed this one it seems.
Perhaps it'd be worth unifying this so we never emit zero-length
DW_AT_names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188649 91177308-0d34-0410-b5e6-96231b3b80d8
llvm-dwarfdump: Do not include address offsets for attributes, only for tags

This reduces the noise in diffs making it more likely that, at least for
LLVM revision-over-revision, diffs will actually yield usable results.

This is consistent with objdump's DWARF dumping behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188650 91177308-0d34-0410-b5e6-96231b3b80d8
Add the PPC fcpsgn instruction

Modern PPC cores support a floating-point copysign instruction, and we can use
this to lower the FCOPYSIGN node (which is created from calls to the libm
copysign function). A couple of extra patterns are necessary because the
operand types of FCOPYSIGN need not agree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188653 91177308-0d34-0410-b5e6-96231b3b80d8
AVX-512: compiler intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188654 91177308-0d34-0410-b5e6-96231b3b80d8
Add ExpandFloatOp_FCOPYSIGN to handle ppcf128-related expansions

We had previously been asserting when faced with a FCOPYSIGN f64, ppcf128 node
because there was no way to expand the FCOPYSIGN node. Because ppcf128 is the
sum of two doubles, and the first double must have the larger magnitude, we
can take the sign from the first double. As a result, in addition to fixing the
crash, this is also an optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188655 91177308-0d34-0410-b5e6-96231b3b80d8
Adds missing TLI check for library simplification of
* pow(x, 0.5) -> fabs(sqrt(x)) 
* pow(2.0, x) -> exp2(x)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188656 91177308-0d34-0410-b5e6-96231b3b80d8
[SystemZ] Add support for sibling calls

This first cut is pretty conservative.  The final argument register (R6)
is call-saved, so we would need to make sure that the R6 argument to a
sibling call is the same as the R6 argument to the calling function,
which seems worth keeping as a separate patch.

Saying that integer truncations are free means that we no longer
use the extending instructions LGF and LLGF for spills in int-conv-09.ll
and int-conv-10.ll.  Instead we treat the registers as 64 bits wide and
truncate them to 32-bits where necessary.  I think it's unlikely we'd
use LGF and LLGF for spills in other situations for the same reason,
so I'm removing the tests rather than replacing them.  The associated
code is generic and applies to many more instructions than just
LGF and LLGF, so there is no corresponding code removal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188669 91177308-0d34-0410-b5e6-96231b3b80d8
[SystemZ] Add integer absolute (load positive)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188670 91177308-0d34-0410-b5e6-96231b3b80d8
[SystemZ] Add negative integer absolute (load negative)

For now this matches the equivalent of (neg (abs ...)), which did hit a few
times in projects/test-suite.  We should probably also match cases where
absolute-like selects are used with reversed arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188671 91177308-0d34-0410-b5e6-96231b3b80d8
AVX-512: added arithmetic and logical operations.
ADD, SUB, MUL integer and FP types. OR, AND, XOR.
Added embeded broadcast form for these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188673 91177308-0d34-0410-b5e6-96231b3b80d8
Thumb2 add immediate alias for SP

The Thumb2 add immediate is in fact defined for SP. The manual is misleading as it points to a different section for add immediate with SP, however the encoding is the same as for add immediate with register only with the SP operand hard coded. As such add immediate with SP and add immediate with register can safely be treated as the same instruction.

All the patch does is adjust a register constraint on an instruction alias.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188676 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce SpecialCaseList::isIn overload for GlobalAliases.

Differential Revision: http://llvm-reviews.chandlerc.com/D1437

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188688 91177308-0d34-0410-b5e6-96231b3b80d8
Add definition of __warn_unused_result__ attribute. It will be used in the
futher commits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188689 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Fix instruction definitions that were incorrectly marked as code-gen-only.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188690 91177308-0d34-0410-b5e6-96231b3b80d8