Fix an index array check.

Patch by Marius Wachtler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196561 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a pair of array index checks.

Patch by Marius Wachtler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196560 91177308-0d34-0410-b5e6-96231b3b80d8

Object/COFF: Add export table entry structs.

Differential Revision: http://llvm-reviews.chandlerc.com/D2335

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196556 91177308-0d34-0410-b5e6-96231b3b80d8

[Stackmap] Update stackmap unit test to use AnyRegCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196552 91177308-0d34-0410-b5e6-96231b3b80d8

Delete dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196551 91177308-0d34-0410-b5e6-96231b3b80d8

Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196544 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Further improved error messages.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196542 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Conformed headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196541 91177308-0d34-0410-b5e6-96231b3b80d8

Move test to X86 dir

Test is platform independent, but I don't want to force vector-width, or
that could spoil the pragma test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196539 91177308-0d34-0410-b5e6-96231b3b80d8

Add #pragma vectorize enable/disable to LLVM

The intended behaviour is to force vectorization on the presence
of the flag (either turn on or off), and to continue the behaviour
as expected in its absence. Tests were added to make sure the all
cases are covered in opt. No tests were added in other tools with
the assumption that they should use the PassManagerBuilder in the
same way.

This patch also removes the outdated -late-vectorize flag, which was
on by default and not helping much.

The pragma metadata is being attached to the same place as other loop
metadata, but nothing forbids one from attaching it to a function
(to enable #pragma optimize) or basic blocks (to hint the basic-block
vectorizers), etc. The logic should be the same all around.

Patches to Clang to produce the metadata will be produced after the
initial implementation is agreed upon and committed. Patches to other
vectorizers (such as SLP and BB) will be added once we're happy with
the pass manager changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196537 91177308-0d34-0410-b5e6-96231b3b80d8

Check hint registers for interference only once before evictions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196536 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented vget/vset_lane_f16 intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196533 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Changed extension from .llcov to .gcov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196530 91177308-0d34-0410-b5e6-96231b3b80d8

Revert part of GCC warning fix to fix debug build.

The typedef is used inside the DEBUG(), and apparently can't be moved
inside of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196528 91177308-0d34-0410-b5e6-96231b3b80d8

Fix minor GCC warnings.

Unused typedefs and unused variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196526 91177308-0d34-0410-b5e6-96231b3b80d8

Change std::deque => std::vector. No functionality change.

There is no reason to use std::deque here over std::vector. Thus given the
performance differences inbetween the two it makes sense to change deque to
vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196524 91177308-0d34-0410-b5e6-96231b3b80d8

Document that dllexported symbols are preserved by optimization passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196523 91177308-0d34-0410-b5e6-96231b3b80d8

Fix non-deterministic behavior.

We use CSEBlocks to initialize a worklist:

SmallVector<BasicBlock *, 8> CSEWorkList(CSEBlocks.begin(), CSEBlocks.end());

so it must have a deterministic order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196520 91177308-0d34-0410-b5e6-96231b3b80d8

Rename DwarfUnits to DwarfFile to help avoid some naming confusion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196519 91177308-0d34-0410-b5e6-96231b3b80d8

MI-Sched: Model "reserved" processor resources.

This allows a target to use MI-Sched as an in-order scheduler that
will model strict resource conflicts without defining a processor
itinerary. Instead, the target can now use the new per-operand machine
model and define in-order resources with BufferSize=0. For example,
this would allow restricting the type of operations that can be formed
into a dispatch group. (Normally NumMicroOps is sufficient to enforce
dispatch groups).

If the intent is to model latency in in-order pipeline, as opposed to
resource conflicts, then a resource with BufferSize=1 should be
defined instead.

This feature is only casually tested as there are no in-tree targets
using it yet. However, Hal will be experimenting with POWER7.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196517 91177308-0d34-0410-b5e6-96231b3b80d8

MI-Sched: handle latency of in-order operations with the new machine model.

The per-operand machine model allows the target to define "unbuffered"
processor resources. This change is a quick, cheap way to model stalls
caused by the latency of operations that use such resources. This only
applies when the processor's micro-op buffer size is non-zero
(Out-of-Order). We can't precisely model in-order stalls during
out-of-order execution, but this is an easy and effective
heuristic. It benefits cortex-a9 scheduling when using the new
machine model, which is not yet on by default.

MI-Sched for armv7 was evaluated on Swift (and only not enabled because
of a performance bug related to predication). However, we never
evaluated Cortex-A9 performance on MI-Sched in its current form. This
change adds MI-Sched functionality to reach performance goals on
A9. The only remaining change is to allow MI-Sched to run as a PostRA
pass.

I evaluated performance using a set of options to estimate the performance impact once MI sched is default on armv7:
-mcpu=cortex-a9 -disable-post-ra -misched-bench -scheditins=false

For a simple saxpy loop I see a 1.7x speedup. Here are the llvm-testsuite results:
(min run time over 2 runs, filtering tiny changes)

Speedups:
| Benchmarks/BenchmarkGame/recursive         |  52.39% |
| Benchmarks/VersaBench/beamformer           |  20.80% |
| Benchmarks/Misc/pi                         |  19.97% |
| Benchmarks/Misc/mandel-2                   |  19.95% |
| SPEC/CFP2000/188.ammp                      |  18.72% |
| Benchmarks/McCat/08-main/main              |  18.58% |
| Benchmarks/Misc-C++/Large/sphereflake      |  18.46% |
| Benchmarks/Olden/power                     |  17.11% |
| Benchmarks/Misc-C++/mandel-text            |  16.47% |
| Benchmarks/Misc/oourafft                   |  15.94% |
| Benchmarks/Misc/flops-7                    |  14.99% |
| Benchmarks/FreeBench/distray               |  14.26% |
| SPEC/CFP2006/470.lbm                       |  14.00% |
| mediabench/mpeg2/mpeg2dec/mpeg2decode      |  12.28% |
| Benchmarks/SmallPT/smallpt                 |  10.36% |
| Benchmarks/Misc-C++/Large/ray              |   8.97% |
| Benchmarks/Misc/fp-convert                 |   8.75% |
| Benchmarks/Olden/perimeter                 |   7.10% |
| Benchmarks/Bullet/bullet                   |   7.03% |
| Benchmarks/Misc/mandel                     |   6.75% |
| Benchmarks/Olden/voronoi                   |   6.26% |
| Benchmarks/Misc/flops-8                    |   5.77% |
| Benchmarks/Misc/matmul_f64_4x4             |   5.19% |
| Benchmarks/MiBench/security-rijndael       |   5.15% |
| Benchmarks/Misc/flops-6                    |   5.10% |
| Benchmarks/Olden/tsp                       |   4.46% |
| Benchmarks/MiBench/consumer-lame           |   4.28% |
| Benchmarks/Misc/flops-5                    |   4.27% |
| Benchmarks/mafft/pairlocalalign            |   4.19% |
| Benchmarks/Misc/himenobmtxpa               |   4.07% |
| Benchmarks/Misc/lowercase                  |   4.06% |
| SPEC/CFP2006/433.milc                      |   3.99% |
| Benchmarks/tramp3d-v4                      |   3.79% |
| Benchmarks/FreeBench/pifft                 |   3.66% |
| Benchmarks/Ptrdist/ks                      |   3.21% |
| Benchmarks/Adobe-C++/loop_unroll           |   3.12% |
| SPEC/CINT2000/175.vpr                      |   3.12% |
| Benchmarks/nbench                          |   2.98% |
| SPEC/CFP2000/183.equake                    |   2.91% |
| Benchmarks/Misc/perlin                     |   2.85% |
| Benchmarks/Misc/flops-1                    |   2.82% |
| Benchmarks/Misc-C++-EH/spirit              |   2.80% |
| Benchmarks/Misc/flops-2                    |   2.77% |
| Benchmarks/NPB-serial/is                   |   2.42% |
| Benchmarks/ASC_Sequoia/CrystalMk           |   2.33% |
| Benchmarks/BenchmarkGame/n-body            |   2.28% |
| Benchmarks/SciMark2-C/scimark2             |   2.27% |
| Benchmarks/Olden/bh                        |   2.03% |
| skidmarks10/skidmarks                      |   1.81% |
| Benchmarks/Misc/flops                      |   1.72% |

Slowdowns:
| Benchmarks/llubenchmark/llu                | -14.14% |
| Benchmarks/Polybench/stencils/seidel-2d    |  -5.67% |
| Benchmarks/Adobe-C++/functionobjects       |  -5.25% |
| Benchmarks/Misc-C++/oopack_v1p8            |  -5.00% |
| Benchmarks/Shootout/hash                   |  -2.35% |
| Benchmarks/Prolangs-C++/ocean              |  -2.01% |
| Benchmarks/Polybench/medley/floyd-warshall |  -1.98% |
| Polybench/linear-algebra/kernels/3mm       |  -1.95% |
| Benchmarks/McCat/09-vor/vor                |  -1.68% |

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196516 91177308-0d34-0410-b5e6-96231b3b80d8

Machine model comments. Explain a ProcessorUnit's BufferSize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196515 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the A9 machine model. VTRN writes two registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196514 91177308-0d34-0410-b5e6-96231b3b80d8

comment typo and reformat

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196513 91177308-0d34-0410-b5e6-96231b3b80d8

Add a default constructor to get deterministic behavior.

Should fix the msan and valgrind bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196509 91177308-0d34-0410-b5e6-96231b3b80d8

SLPVectorizer: An in-tree vectorized entry cannot also be a scalar external use

We were creating external uses for scalar values in MustGather entries that also
had a ScalarToTreeEntry (they also are present in a vectorized tuple). This
meant we would keep a value 'alive' as a scalar and vectorized causing havoc.
This is not necessary because when we create a MustGather vector we explicitly
create external uses entries for the insertelement instructions of the
MustGather vector elements.

Fixes PR18129.

radar://15582184

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196508 91177308-0d34-0410-b5e6-96231b3b80d8

[tsan] fix PR18146: sometimes a variable written into vptr could have an integer type (after other optimizations)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196507 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Fix off-by-one error when creating the VT list for an SDNode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196503 91177308-0d34-0410-b5e6-96231b3b80d8

Add forgotten header guards

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196500 91177308-0d34-0410-b5e6-96231b3b80d8

[mips] Small code generation improvement for conditional operator (select)
in case the operands are constants and its difference is |1|.
It should be possible in those cases to rematerialize the result using
MIPS's slt and similar instructions.

The small update to some of the tests in cmov.ll, sel1c.ll and sel2c.ll was needed
otherwise the optimization implemented in this patch would have been triggered
(difference between the operands was 1) and that would have changed the semantic
of the tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196498 91177308-0d34-0410-b5e6-96231b3b80d8

[mips] Add some comments related to the optimization performed in performSELECTCombine.
The structure of the code was slightly modified so that the next patch is easier to read/review.

No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196496 91177308-0d34-0410-b5e6-96231b3b80d8

[mips][msa] Fix issue with immediate fields of LD/ST instructions
not being correctly encoded/decoded.
In more detail, immediate fields of LD/ST instructions should be
divided/multiplied by the size of the data format before encoding and
after decoding, respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196494 91177308-0d34-0410-b5e6-96231b3b80d8

ARM: fix yet another stack-folding bug

We were trying to fold the stack adjustment into the wrong instruction in the
situation where the entire basic-block was epilogue code. Really, it can only
ever be valid to do the folding precisely where the "add sp, ..." would be
placed so there's no need for a separate iterator to track that.

Should fix PR18136.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196493 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfDebug/DwarfUnit: Push abbreviation structures down into DwarfUnits to reduce duplication

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196479 91177308-0d34-0410-b5e6-96231b3b80d8

Use isIntrinsic() instead of checking for "llvm."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196473 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the isImplicitlyPrivate argument of getNameWithPrefix.

getSymbolWithGlobalValueBase use is to create a name of a new symbol based
on the name of an existing GV. Assert that and then remove the last call
to pass true to isImplicitlyPrivate.

This gives the mangler API a 1:1 mapping from GV to names, which is what we
need to drop the mangler dependency on the target (and use an extended
datalayout instead).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196472 91177308-0d34-0410-b5e6-96231b3b80d8

Correct word hyphenations

This patch tries to avoid unrelated changes other than fixing a few
hyphen-related ambiguities and contractions in nearby lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196471 91177308-0d34-0410-b5e6-96231b3b80d8

Hide the stub created for MO_ExternalSymbol too.

given

declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1)
declare void @foo()
define void @bar() {
  call void @foo()
  call void @llvm.memset.p0i8.i32(i8* null, i8 0, i32 188, i32 1, i1 false)
  ret void
}

We used to produce

L_foo$stub:
        .indirect_symbol        _foo
        .ascii  "\364\364\364\364\364"

_memset$stub:
        .indirect_symbol        _memset
        .ascii  "\364\364\364\364\364"

We not produce a private stub for memset too.

Stubs are not needed with recent linkers, but we still produce them for darwin8.

Thanks to David Fang for confirming that gcc used to do this too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196468 91177308-0d34-0410-b5e6-96231b3b80d8

R600/SI: Add comments for number of used registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196467 91177308-0d34-0410-b5e6-96231b3b80d8

Try harder to get a consistent floating point results.

This just extends the existing hack. It should be enough to get a reproducible bootstrap
on 32 bits.

I will open a bug to track getting a real fix for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196462 91177308-0d34-0410-b5e6-96231b3b80d8

Move llvm/test/MC/ELF/thumb-st_other.s to test/MC/ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196457 91177308-0d34-0410-b5e6-96231b3b80d8

For AArch64, add missing register cost calculation for big value types like v4i64 and v8i64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196456 91177308-0d34-0410-b5e6-96231b3b80d8

Add FileCheck statements for r196435.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196449 91177308-0d34-0410-b5e6-96231b3b80d8

Compiler.h: Disable initializer list usage with clang-cl

Most people are using MSVC 2012, which lacks the <initializer_list>
header.  MSVC 2013 shipped with that header, but it has not yet been
tested.  If clang works with the 2013 header, then we can enable this by
checking the value of _MSC_VER.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196448 91177308-0d34-0410-b5e6-96231b3b80d8

Export symbols in tools that support loading plugins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196447 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfDebug: Avoid unnecessary abbreviation lookup when emitting DIEs

DIEs already contain references directly to their DIEAbbrev, use that
instead of looking it up based on index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196446 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfDebug: Remove trivial function wrapper

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196445 91177308-0d34-0410-b5e6-96231b3b80d8

Make these two tests resilient in the face of compile unit size
changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196444 91177308-0d34-0410-b5e6-96231b3b80d8

80-column.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196442 91177308-0d34-0410-b5e6-96231b3b80d8

Remove special handling for DW_AT_ranges support by constructing the
values with the correct behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196441 91177308-0d34-0410-b5e6-96231b3b80d8

[mc] Fix ELF st_other flag.

ELF_Other_Weakref and ELF_Other_ThumbFunc seems to be LLVM
internal ELF symbol flags.  These should not be emitted to
object file.

This commit defines ELF_STO_Shift for the target-defined
flags for st_other, and increase the value of
ELF_Other_Shift to 16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196440 91177308-0d34-0410-b5e6-96231b3b80d8

Use present fast-math flags when applicable in CreateBinOp

We were previously not adding fast-math flags through CreateBinOp()
when it happened to be making a floating point binary operator. This
patch updates it to do so similarly to directly calling CreateF*().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196438 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196437 91177308-0d34-0410-b5e6-96231b3b80d8

Add AVX512 patterns for v16i32 broadcast and v2i64 zero extend load.

Patch by Aleksey Bader.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196435 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196434 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfUnit: Correct comment by generalizing over all units, not just compilation units.

Code review feedback on r196394 by Paul Robinson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196433 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in darwin's 32-bit X86 handling of evaluating fixups.

Where it would use a scattered relocation entry but falls back to a
normal relocation entry because the FixupOffset is more than 24-bits.

The bug is in the X86MachObjectWriter::RecordScatteredRelocation() where
it changes reference parameter FixedValue but then returns false to indicate
it did not create a scattered relocation entry.  The fix is simply to save the
original value of the parameter FixedValue at the start of the method and
restore it if we are returning false in that case.

rdar://15526046

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196432 91177308-0d34-0410-b5e6-96231b3b80d8

Update comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196431 91177308-0d34-0410-b5e6-96231b3b80d8

Update comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196430 91177308-0d34-0410-b5e6-96231b3b80d8

Remove incorrect comment and pointless cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196427 91177308-0d34-0410-b5e6-96231b3b80d8

const on its own line is confusing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196426 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for parsing ARM symbol variants on ELF targets

ARM symbol variants are written with parens instead of @ like this:

  .word __GLOBAL_I_a(target1)

This commit adds support for parsing these symbol variants in
expressions. We introduce a new flag to MCAsmInfo that indicates the
parser should use parens to parse the symbol variant. The expression
parser is modified to look for symbol variants using parens instead
of @ when the corresponding MCAsmInfo flag is true.

The MCAsmInfo parens flag is enabled only for ARM on ELF.

By adding this flag to MCAsmInfo, we are able to get rid of
redundant ARM-specific symbol variants and use the generic variants
instead (e.g. VK_GOT instead of VK_ARM_GOT). We use the new
UseParensForSymbolVariant attribute in MCAsmInfo to correctly print
the symbol variants for arm.

To achive this we need to keep a handle to the MCAsmInfo in the
MCSymbolRefExpr class that we can check when printing the symbol
variant.

Updated Tests:
  Changed case of symbol variant to match the generic kind.
  test/CodeGen/ARM/tls-models.ll
  test/CodeGen/ARM/tls1.ll
  test/CodeGen/ARM/tls2.ll
  test/CodeGen/Thumb2/tls1.ll
  test/CodeGen/Thumb2/tls2.ll

PR18080

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196424 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196422 91177308-0d34-0410-b5e6-96231b3b80d8

Reformat slightly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196421 91177308-0d34-0410-b5e6-96231b3b80d8

Make RangeSpanList take a symbol for the beginning of the range
rather than magically making the names match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196419 91177308-0d34-0410-b5e6-96231b3b80d8

Add a FIXME for making the symbol emission functions const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196418 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfDebug: Unconditionalize trivial asm comments

While we still have a few (~4) non-trivial comments with string
concatenation, etc that should remain conditionalized, these trivial
literal comments can be simplified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196416 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfDebug: Reduce code duplication for sec offset emission

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196414 91177308-0d34-0410-b5e6-96231b3b80d8

Couple of small logical cleanups to use !empty rather than other
checks. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196412 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Replace size() with empty() in bool check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196400 91177308-0d34-0410-b5e6-96231b3b80d8

Use move and stack allocation for RangeSpanLists. As a result make
a few things more const as well because we're now using const
references to refer to iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196398 91177308-0d34-0410-b5e6-96231b3b80d8

DebugInfo: Improve test to use llvm-dwarfdump

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196396 91177308-0d34-0410-b5e6-96231b3b80d8

Test fix for r196394

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196395 91177308-0d34-0410-b5e6-96231b3b80d8

DebugInfo: Remove unused start/end labels for the debug_abbrevs section

Since we always emit only one abbrevation section (shared by all the
compilation units in this module) there's no need for a separate label
at the start of each one (and we weren't using the CU ID anyway, so
there really was only one label). Use the section label instead and drop
the wholely unused debug_abbrev_end label.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196394 91177308-0d34-0410-b5e6-96231b3b80d8

Fix assembly syntax for AVX512 vector blend instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196393 91177308-0d34-0410-b5e6-96231b3b80d8

DebugInfo: Avoid recreating matching labels in disparate places.

Instead, reuse the same MCSymbol - this should make the code easier to
follow by avoiding hard to trace dependencies between different bits of
code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196392 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Check YMM31/ZMM31 as well

- No test case as there's no calling convention preserve YMM31/ZMM31 only

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196391 91177308-0d34-0410-b5e6-96231b3b80d8

Update the UseFusedMAC definition to directly specify its dependence on having
VFP4.
Patch by Daniel Stewart!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196390 91177308-0d34-0410-b5e6-96231b3b80d8

Suppress '(x < y) ? a : 0 -> (x < y) & a' transform on X86 architectures with dedicated mask registers.

Patch by Aleksey Bader.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196386 91177308-0d34-0410-b5e6-96231b3b80d8

[CMake] add_lit_target: Let lit.site.cfg free from "--param build_mode" on single configuration builds, like autoconf build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196377 91177308-0d34-0410-b5e6-96231b3b80d8

Update email address.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196369 91177308-0d34-0410-b5e6-96231b3b80d8

Un-revert r196358: "llvm-cov: Added support for function checksums."

And add the proper fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196367 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r196358: "llvm-cov: Added support for function checksums."

This currently breaks clang/test/CodeGen/code-coverage.c. The root cause
is that the newly introduced access to Funcs[j] is out of bounds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196365 91177308-0d34-0410-b5e6-96231b3b80d8

[AArch64 Neon] Add ACLE intrinsic vceqz_f64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196362 91177308-0d34-0410-b5e6-96231b3b80d8

[AArch64 NEON] Add missing compare intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196360 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Added support for function checksums.

The function checksums are hashed from the concatenation of the function
name and line number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196358 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Added checks for ident, checksum, name.

Added additional checks for the Identifier, CfgChecksum and Name for
each GCOVFunction. Also added function names in error messages.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196356 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Capitalized GCNO and GCDA for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196354 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-cov: Split GCOVFile's read into GCNO and GCDA.

This splits the file-scope read() function into readGCNO() and
readGCDA(). Also broke file format read into functions that first read
the file type, then check the version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196353 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a funny typo.

Thanks for j`ey and Sean Silva for noticing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196344 91177308-0d34-0410-b5e6-96231b3b80d8

[LangRef] Remove (non-normative) paragraph that doesn't make sense.

It appears to be referring to nonexistent entities. This must be a
carry-over from an older version of the document.

Patch by Mikael Lyngvig!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196342 91177308-0d34-0410-b5e6-96231b3b80d8

Produce deterministic coff files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196341 91177308-0d34-0410-b5e6-96231b3b80d8

Add -mcpu=core2 to all llc invocations in this test.

Should fix the atom buildbot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196340 91177308-0d34-0410-b5e6-96231b3b80d8

[Stackmap] Specify the triple and cpu to fix the unit test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196339 91177308-0d34-0410-b5e6-96231b3b80d8

[Stackmap] Emit multi-byte nops for X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196334 91177308-0d34-0410-b5e6-96231b3b80d8

final patch for very long conditional branches for mips16 constant islands.
this completes the basic port of ARM constant islands to Mips16.
More testing, code review, cleanup is in order but basically everything
seems to be working. A bug in gas is preventing some of the runtime
testing but I hope to resolve this soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196331 91177308-0d34-0410-b5e6-96231b3b80d8

check-llvm: Ask llvm-config about assertion mode, instead of llc.

Add --assertion-mode to llvm-config. It emits ON or OFF according to NDEBUG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196329 91177308-0d34-0410-b5e6-96231b3b80d8

utils/llvm-lit: Generate "llvm-lit.py" rather than "llvm-lit" on Win32 hosts to let llvm-lit.py --use-processes work.

llvm-lit needs suffix.py for multiprocess to find a main module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196328 91177308-0d34-0410-b5e6-96231b3b80d8

Update comment grammar and contents.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196323 91177308-0d34-0410-b5e6-96231b3b80d8

Use CHECK-LABEL to make this test more strict.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196321 91177308-0d34-0410-b5e6-96231b3b80d8