llvm-svn: 342272

Change by Tony Tye

llvm-svn: 342270

Summary:
The multiprocess module uses pickling to transfer
information between processes and does not know how to pickle
the class created in the lit.cfg file and thus the example
fails.

Implement ManyTests in a separate file and import for the
example test passes

Patch by Nathan Lanza <nathan@lanza.io>

Differential Revision: https://reviews.llvm.org/D51328

llvm-svn: 342269

Remove trailing spaces

llvm-svn: 342268

Revert r342183 "[DAGCombine] Fix crash when store merging created an extract_subvector with invalid index."

Causes 'isVector() && "Invalid vector type!"' assertion when building
Skia in Chrome.

llvm-svn: 342265

This patch fixes the debug info handling for SelectionDAG legalization
of DAG nodes with two results. When an replaced SDNode has more than
one result, transferDbgValues was always copying the SDDbgValue from
the first result and attaching them to all members. In reality
SelectionDAG::ReplaceAllUsesWith() is given an array of SDNodes
(though the type signature doesn't make this obvious (cf. the call
site code in ReplaceNode()).

rdar://problem/44162227

Differential Revision: https://reviews.llvm.org/D52112

llvm-svn: 342264

Summary:
During threaded thinLTO, it is possible that the entry for current
module doesn't exist in StringMaps (like ExportLists, ResolvedODR,
etc.). Using operator[] might trigger a rehash for the StringMap, which
might happen on multiple threads at the same time.

rdar://problem/43846199

Reviewers: tejohnson, mehdi_amini, kromanova, pcc

Reviewed By: tejohnson

Subscribers: dang, inglorion, eraman, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D52049

llvm-svn: 342263

It causes assertion failures while building Skia for Android in
Chromium:
https://ci.chromium.org/buildbot/chromium.clang/ToTAndroid/4550

Reduction forthcoming.

llvm-svn: 342260

llvm-svn: 342258

Attempt to lower a shuffle as an unpack of elements from two inputs followed by a single-input (wider) permutation.

As long as the permutation is wider this is a win - there may be some circumstances where same size permutations would also be useful but I've left that for future work.

Differential Revision: https://reviews.llvm.org/D52043

llvm-svn: 342257

The regular expression used for stack accesses is different today.

llvm-svn: 342256

The folds are not limited to zext, and the real goal is width
reduction of a math op. D52075 is proposing to extend this to
subtracts.

llvm-svn: 342254

These are universal folds.

llvm-svn: 342253

llvm-svn: 342251

llvm-svn: 342250

There was a bug in a check line regex that could cause the test to fail
with a naming difference. The auto-gen script seems to work as expected now.

llvm-svn: 342249

Introduce explicit add_unittest_with_input_files target for tests that use llvm::getInputFileDirectory()

Using llvm::getInputFileDirectory() in unit tests is discouraged, so require an explicit opt-in.
This way, cmake also writes ~60 fewer unused files to disk.

Differential Revision: https://reviews.llvm.org/D52095

llvm-svn: 342248

llvm-svn: 342247

llvm-svn: 342245

This caused LLD test failures, which I've been unable to reproduce.

Reverting to allow for further investigation next week.

llvm-svn: 342244

llvm-svn: 342241

llvm-svn: 342237

These have the same behaviour as tzcnt on btver2 - confirmed with AMD 16h SOG, Agner and instlatx64.

llvm-svn: 342235

llvm-svn: 342234

Also added a C-interface function for large values, and updated
llvm-lto's --thinlto-cache-max-size-bytes switch to take a type larger
than int.

The maximum cache size in terms of bytes is a 64-bit number. However,
the methods to set it only took unsigned previously, which meant that
the maximum cache size could not be specified above 4GB. That's quite
small compared to the output of some projects, so it makes sense to
provide the ability to set larger values in that field.

We also needed a C-interface function that provides a greater range
than the existing thinlto_codegen_set_cache_size_bytes, which also only
takes an unsigned, so this change also adds
hinlto_codegen_set_cache_size_megabytes.

Reviewed by: mehdi_amini, tejohnson, steven_wu

Differential Revision: https://reviews.llvm.org/D52023

llvm-svn: 342233

Summary:
GFX9 and above support sin/cos instructions with a greater range and thus don't
require a fract instruction prior to invocation.

Added a subtarget feature to reflect this and added code to take advantage of
expanded range on GFX9+

Also updated the tests to check correct behaviour

Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D51933

Change-Id: I1c1f1d3726a5ae32116646ca5cfa1ab4ef69e5b0
llvm-svn: 342222

errors.
Adjusted 2 test cases for ARM and darwin and fixed a bug with the original
change in dsymutil.

llvm-svn: 342218

On failing to find sequences that can be converted into dual macs,
try to find sequential 16-bit loads that are used by muls which we
can then use smultb, smulbt, smultt with a wide load.

Differential Revision: https://reviews.llvm.org/D51983

llvm-svn: 342210

As preparation for LoopInterchange becoming a loop pass, it needs to
preserve ScalarEvolution. Even though interchanging should not change
the trip count of the loop, it modifies loop entry, latch and exit
blocks.

I added -verify-scev to some loop interchange tests, but the verification does
not catch problems caused by missing invalidation of SE in loop interchange, as
the trip counts themselves do not change. So there might be potential to
make the SE verification covering more stuff in the future.

Reviewers: mkazantsev, efriedma, karthikthecool

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D52026

llvm-svn: 342209

After recent improvements which makes better use of LOC instead of IPM, the
TTI cost functions also needs to be updated to reflect this.

This involves sext, zext and xor of i1.

The tests were updated so that for z13 the new costs are expected, while the
old costs are still checked for on zEC12.

Review: Ulrich Weigand
https://reviews.llvm.org/D51339

llvm-svn: 342207

When reading directives from a .drectve section, the directives are
tokenized as a normal windows command line. However in these cases,
link.exe allows the directives to be separated by null bytes, not only by
spaces.

A test case for this change will be added in the lld repo.

Differential Revision: https://reviews.llvm.org/D52014

llvm-svn: 342204

[InstCombine] Add some test cases for (add (sext x), (sext y)) --> (sext (add int x, y)) and (mul (sext x), (sext y)) --> (sext (mul x, y)). NFC

llvm-svn: 342203

llvm-svn: 342202

Fix for the buildbot failure http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/23635
from the commit (r342197) of https://reviews.llvm.org/D50820.

llvm-svn: 342201

Summary:
[VPlan] Implement vector code generation support for simple outer loops.

Context: Patch Series #1 for outer loop vectorization support in LV  using VPlan. (RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-December/119523.html).
                                                          
This patch introduces vector code generation support for simple outer loops that are currently supported in the VPlanNativePath. Changes here essentially do the following:

  - force vector code generation using explicit vectorize_width

  - add conservative early returns in cost model and other places for VPlanNativePath

  - add code for setting up outer loop inductions 

  - support for widening non-induction PHIs that can result from inner loops and uniform conditional branches

  - support for generating uniform inner branches

We plan to add a handful C outer loop executable tests once the initial code generation support is committed. This patch is expected to be NFC for the inner loop vectorizer path. Since we are moving in the direction of supporting outer loop vectorization in LV, it may also be time to rename classes such as InnerLoopVectorizer. 

Reviewers: fhahn, rengolin, hsaito, dcaballe, mkuper, hfinkel, Ayal

Reviewed By: fhahn, hsaito

Subscribers: dmgreen, bollu, tschuett, rkruppe, rogfer01, llvm-commits

Differential Revision: https://reviews.llvm.org/D50820

llvm-svn: 342197

Fixes missing `llvm::LLVMContext::~LLVMContext()` symbols w/
`BUILD_SHARED_LIBS`.

llvm-svn: 342193

Summary:
I accidentally left this behind in D50306, and it causes a build warning
when I build with gcc7.

Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D52022

Change-Id: I30f7a47047e9d9d841f652da66d2fea19e74842c
llvm-svn: 342189

Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 342186

The last, non-canonical variant:
https://godbolt.org/z/aCMsPk
https://rise4fun.com/Alive/I6f

It can only happen due to the extra use on the inner shift.
But here it is ok.

https://bugs.llvm.org/show_bug.cgi?id=38708

llvm-svn: 342184

Differential Revision: https://reviews.llvm.org/D51831

llvm-svn: 342183