Mark i64 SETCC as expand so it is turned into a SELECT_CC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182227 91177308-0d34-0410-b5e6-96231b3b80d8
Implement spill and fill of I64Regs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182228 91177308-0d34-0410-b5e6-96231b3b80d8
Also expand 64-bit bitcasts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182229 91177308-0d34-0410-b5e6-96231b3b80d8
Partially revert change in r181200 that tried to simplify JIT unit test #ifdefs.

The export list for this test requires the following symbols to be available:
  JITTest_AvailableExternallyFunction
  JITTest_AvailableExternallyGlobal
The change in r181200 commented them out, which caused the test to fail to
link, at least on Darwin. I have only reverted the change for arm, since I
can't test the other targets and since it sounds like that change was fixing
real problems for those other targets. It should be possible to rearrange the
code to keep those definitions outside the #ifdefs, but that should be done by
someone who can reproduce the problems that r181200 was trying to fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182233 91177308-0d34-0410-b5e6-96231b3b80d8
Disable remote MCJIT on pre-v6 ARM

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182235 91177308-0d34-0410-b5e6-96231b3b80d8
PR15868 fix.

Introduction:
In case when stack alignment is 8 and GPRs parameter part size is not N*8:
we add padding to GPRs part, so part's last byte must be recovered at
address K*8-1.
We need to do it, since remained (stack) part of parameter starts from
address K*8, and we need to "attach" "GPRs head" without gaps to it:

Stack:
|---- 8 bytes block ----| |---- 8 bytes block ----| |---- 8 bytes...
[ [padding] [GPRs head] ] [ ------ Tail passed via stack  ------ ...

FIX:
Note, once we added padding we need to correct *all* Arg offsets that are going
after padded one. That's why we need this fix: Arg offsets were never corrected
before this patch. See new test-cases included in patch.

We also don't need to insert padding for byval parameters that are stored in GPRs
only. We need pad only last byval parameter and only in case it outsides GPRs
and stack alignment = 8.
Though, stack area, allocated for recovered byval params, must satisfy
"Size mod 8 = 0" restriction.

This patch reduces stack usage for some cases:
We can reduce ArgRegsSaveArea since inner N*4 bytes sized byval params my be
"packed" with alignment 4 in some cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182237 91177308-0d34-0410-b5e6-96231b3b80d8
[NVPTX] Fix i1 kernel parameters and global variables.  ABI rules say we need to use .u8 for i1 parameters for kernels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182253 91177308-0d34-0410-b5e6-96231b3b80d8
[NVPTX] Add GenericToNVVM IR converter to better handle idiomatic LLVM IR inputs

This converter currently only handles global variables in address space 0. For
these variables, they are promoted to address space 1 (global memory), and all
uses are updated to point to the result of a cvta.global instruction on the new
variable.

The motivation for this is address space 0 global variables are illegal since we
cannot declare variables in the generic address space.  Instead, we place the
variables in address space 1 and explicitly convert the pointer to address
space 0. This is primarily intended to help new users who expect to be able to
place global variables in the default address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182254 91177308-0d34-0410-b5e6-96231b3b80d8
Enable pod-like optimizations for pred and succ iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182257 91177308-0d34-0410-b5e6-96231b3b80d8
[SystemZ] Add long branch pass

Before this change, the SystemZ backend would use BRCL for all branches
and only consider shortening them to BRC when generating an object file.
E.g. a branch on equal would use the JGE alias of BRCL in assembly output,
but might be shortened to the JE alias of BRC in ELF output.  This was
a useful first step, but it had two problems:

(1) The z assembler isn't traditionally supposed to perform branch shortening
    or branch relaxation.  We followed this rule by not relaxing branches
    in assembler input, but that meant that generating assembly code and
    then assembling it would not produce the same result as going directly
    to object code; the former would give long branches everywhere, whereas
    the latter would use short branches where possible.

(2) Other useful branches, like COMPARE AND BRANCH, do not have long forms.
    We would need to do something else before supporting them.

    (Although COMPARE AND BRANCH does not change the condition codes,
    the plan is to model COMPARE AND BRANCH as a CC-clobbering instruction
    during codegen, so that we can safely lower it to a separate compare
    and long branch where necessary.  This is not a valid transformation
    for the assembler proper to make.)

This patch therefore moves branch relaxation to a pre-emit pass.
For now, calls are still shortened from BRASL to BRAS by the assembler,
although this too is not really the traditional behaviour.

The first test takes about 1.5s to run, and there are likely to be
more tests in this vein once further branch types are added.  The feeling
on IRC was that 1.5s is a bit much for a single test, so I've restricted
it to SystemZ hosts for now.

The patch exposes (and fixes) some typos in the main CodeGen/SystemZ tests.
A later patch will remove the {{g}}s from that directory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182274 91177308-0d34-0410-b5e6-96231b3b80d8
Q registers are encoded in fields of the same length as D registers. As Q registers are half as many, the ARM reference manual mandates the least significant bit to be zeroed out. Failure to do so should result in an undefined instruction. With this change test/MC/Disassembler/ARM/invalid-VQADD-arm.txt is passing (removed XFAIL).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182279 91177308-0d34-0410-b5e6-96231b3b80d8
VSTn instructions have a number of encoding constraints which are not implemented. I have added these using wrapper methods around the original custom decoder (incidentally - this is a huge poorly written method that should be cleaned up. I have left it as is since the changes would be much to hard to review).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182281 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Make fitsRegClass() operands const

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182282 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Use the same names for VOP3 operands and encoding fields

This makes it possible to reorder the operands without breaking the
encoding.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182283 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Add patterns for 64-bit shift operations

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182284 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Swap the legality of rotl and rotr

The hardware supports rotr and not rotl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182285 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Add pattern for rotr

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182286 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Add a pattern for S_LOAD_DWORDX2_* instructions

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182287 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Use a multiclass for MUBUF_Load_Helper

This will simplify the instructions and also the pattern definitions.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182288 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Fix rotr.ll on non-asserts builds

The -debug-only option is only available on asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182291 91177308-0d34-0410-b5e6-96231b3b80d8