platform/upstream/llvm.git
4 years ago[X86] Use isScalarFPTypeInSSEReg to simplify code in LowerSELECT. NFC
Craig Topper [Tue, 18 Feb 2020 03:43:26 +0000 (19:43 -0800)]
[X86] Use isScalarFPTypeInSSEReg to simplify code in LowerSELECT. NFC

4 years ago[lldb/Plugins] Remove PLUGIN from libraries that aren't really plugins.
Jonas Devlieghere [Tue, 18 Feb 2020 03:18:37 +0000 (19:18 -0800)]
[lldb/Plugins] Remove PLUGIN from libraries that aren't really plugins.

Although their name and location suggests otherwise, these libraries are
not really plugins but rather support the real plugins.

4 years ago[lldb/Plugins] Rename lldbPluginDisassemblerLLVM (NFC)
Jonas Devlieghere [Tue, 18 Feb 2020 03:14:01 +0000 (19:14 -0800)]
[lldb/Plugins] Rename lldbPluginDisassemblerLLVM (NFC)

4 years agoRevert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
Jonas Devlieghere [Tue, 18 Feb 2020 03:02:25 +0000 (19:02 -0800)]
Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"

This is still failing spectacularly on the Windows bot and I still have
no clue what's going on.

4 years ago[NFC] Remove trailing space
Jim Lin [Tue, 18 Feb 2020 02:48:38 +0000 (10:48 +0800)]
[NFC] Remove trailing space

sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h,td}

4 years ago[XCore][NFC] Remove trailing space
Jim Lin [Tue, 18 Feb 2020 02:32:58 +0000 (10:32 +0800)]
[XCore][NFC] Remove trailing space

4 years ago[X86] Add one use check to '0-x == y --> x+y == 0' in EmitCmp.
Craig Topper [Mon, 17 Feb 2020 22:49:17 +0000 (14:49 -0800)]
[X86] Add one use check to '0-x == y --> x+y == 0' in EmitCmp.

I failed to copy it when I moved this in
b62de210cf50ccb6822260e4075dd93333adb23e

4 years ago[lldb/Plugin] Unconditionally build Darwin-Kernel
Jonas Devlieghere [Tue, 18 Feb 2020 02:14:24 +0000 (18:14 -0800)]
[lldb/Plugin] Unconditionally build Darwin-Kernel

4 years ago[lldb/Plugin] Fix some issues on Windows
Jonas Devlieghere [Tue, 18 Feb 2020 01:20:47 +0000 (17:20 -0800)]
[lldb/Plugin] Fix some issues on Windows

 - Don't initialize NativePDB.
 - Initialize ProcessWindows after any Process*Core plugins.
 - Don't initialize DynamicLoaderDarwinKernel on non-Darwin platforms.

4 years ago[HotColdSplit] Mark entire function cold when entry block is cold
Vedant Kumar [Mon, 17 Feb 2020 23:56:12 +0000 (15:56 -0800)]
[HotColdSplit] Mark entire function cold when entry block is cold

rdar://58855712

4 years ago[TBLGEN] Inhibit generation of unneeded psets
Stanislav Mekhanoshin [Mon, 17 Feb 2020 18:29:06 +0000 (10:29 -0800)]
[TBLGEN] Inhibit generation of unneeded psets

Differential Revision: https://reviews.llvm.org/D74744

4 years agoLowerMatrixIntrinsics: Avoid use of deprecated CreateCall methods
Nicolai Hähnle [Sat, 15 Feb 2020 20:18:25 +0000 (21:18 +0100)]
LowerMatrixIntrinsics: Avoid use of deprecated CreateCall methods

Reviewers: t.p.northover

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74675

4 years agoCoroutines: avoid use of deprecated CreateLoad and CreateCall methods
Tim Northover [Tue, 17 Dec 2019 10:07:03 +0000 (10:07 +0000)]
Coroutines: avoid use of deprecated CreateLoad and CreateCall methods

Summary: Patch originally by Tim Northover

Reviewers: t.p.northover

Subscribers: EricWF, hiraditya, modocache, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74674

4 years agoCGBuiltin: Remove uses of deprecated CreateCall overloads
Nicolai Hähnle [Wed, 27 Nov 2019 03:58:14 +0000 (04:58 +0100)]
CGBuiltin: Remove uses of deprecated CreateCall overloads

Reviewers: t.p.northover

Subscribers: cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74673

4 years agoRe-land "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
Jonas Devlieghere [Mon, 17 Feb 2020 22:03:14 +0000 (14:03 -0800)]
Re-land "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"

This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

The previously landed patch got reverted because it was lacking:

 (1) A plugin definition for the Objective-C language runtime,
 (2) The dependency between the Static and WASM dynamic loader,
 (3) Explicit initialization of ScriptInterpreterNone for lldb-test.

All issues have been addressed in this patch.

Differential revision: https://reviews.llvm.org/D73067

4 years ago[dsymutil] Explicitly link against libatomic when necessary
Gokturk Yuksek [Mon, 17 Feb 2020 22:26:59 +0000 (22:26 +0000)]
[dsymutil] Explicitly link against libatomic when necessary

In some systems, such as RISC-V, atomic support requires explicit linking
against '-latomic' (see https://github.com/riscv/riscv-gcc/issues/12).

Reviewers: davezarzycki, hhb, beanz, jfb, JDevlieghere
Reviewed By: beanz, JDevlieghere
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69003

4 years ago[LiveDebugValues] Visit open var locs just once in transferRegisterDef, NFC
Vedant Kumar [Mon, 17 Feb 2020 21:53:59 +0000 (13:53 -0800)]
[LiveDebugValues] Visit open var locs just once in transferRegisterDef, NFC

For a file in WebKit, this brings the time spent in LiveDebugValues down
from 16 minutes to 2 minutes. The reduction comes from iterating the set
of open variable locations just once in transferRegisterDef. Post-patch,
the most expensive item inside of transferRegisterDef is a call to
VarLoc::isDescribedByReg, which we have to do.

Testing: I built LNT using the Os-g cmake cache with & without this
patch, then diffed the object files to verify there was no binary diff.

rdar://59446577

Differential Revision: https://reviews.llvm.org/D74633

4 years agoRe-land "Add LazyCallGraph API to add function to RefSCC"
Brian Gesiak [Mon, 17 Feb 2020 21:46:33 +0000 (16:46 -0500)]
Re-land "Add LazyCallGraph API to add function to RefSCC"

This re-commits https://reviews.llvm.org/D70927, which I reverted in
https://reviews.llvm.org/rG28213680b2a7d1fdeea16aa3f3a368879472c72a due
to a buildbot error:
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-avx2-linux/builds/13251

I no longer include a test case that appears to crash when built with the
buildbot's compiler, GCC 5.4.0.

4 years ago[Polly] Run polly-update-format after commit 55cfb1. NFC.
Michael Kruse [Mon, 17 Feb 2020 21:55:09 +0000 (15:55 -0600)]
[Polly] Run polly-update-format after commit 55cfb1. NFC.

4 years ago[mlir] Fix multiple titles
Jacques Pienaar [Mon, 17 Feb 2020 21:38:25 +0000 (13:38 -0800)]
[mlir] Fix multiple titles

We have one title in every doc which corresponds to `#`, in the some
there are multiple and it is expected to be h1 headers (visual elements
rather than organizational). Indent every nesting by one in all of the
docs with multiple titles.

Also fixing trailing whitespace.

4 years ago[lldb/Plugin] Update ProcessWindows plugin for revert
Jonas Devlieghere [Mon, 17 Feb 2020 21:53:07 +0000 (13:53 -0800)]
[lldb/Plugin] Update ProcessWindows plugin for revert

4 years ago[X86] Add missing isel pattern for BLCFILL producing flags.
Craig Topper [Mon, 17 Feb 2020 21:08:39 +0000 (13:08 -0800)]
[X86] Add missing isel pattern for BLCFILL producing flags.

4 years agoRevert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
Jonas Devlieghere [Mon, 17 Feb 2020 20:32:53 +0000 (12:32 -0800)]
Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"

This temporarily reverts commit 7d6da329dee1eda1761430d9097d1323f32c4c0c
because it's causing test failures on the bots.

4 years agoAMDGPU/GlobalISel: Fix RegBankSelect for G_SHUFFLE_VECTOR
Matt Arsenault [Sun, 16 Feb 2020 04:22:00 +0000 (23:22 -0500)]
AMDGPU/GlobalISel: Fix RegBankSelect for G_SHUFFLE_VECTOR

4 years agoAMDGPU/GlobalISel: Custom lower 32-bit G_SDIV/G_SREM
Matt Arsenault [Wed, 12 Feb 2020 01:48:45 +0000 (20:48 -0500)]
AMDGPU/GlobalISel: Custom lower 32-bit G_SDIV/G_SREM

4 years ago[gn build] (manually) merge e9849d519
Nico Weber [Mon, 17 Feb 2020 19:37:43 +0000 (14:37 -0500)]
[gn build] (manually) merge e9849d519

4 years agoAMDGPU/GlobalISel: Allow arbitrary global values
Matt Arsenault [Sun, 16 Feb 2020 03:34:37 +0000 (22:34 -0500)]
AMDGPU/GlobalISel: Allow arbitrary global values

Treat unknown address spaces as global

4 years ago[X86] Change how the alignment for the stack object is created in LowerFLT_ROUNDS_.
Craig Topper [Mon, 17 Feb 2020 19:20:36 +0000 (11:20 -0800)]
[X86] Change how the alignment for the stack object is created in LowerFLT_ROUNDS_.

We don't need FrameInfo's concept of the stack alignment. We just
need to tell it the desired alignment. Which in this case is 2.

4 years ago[X86] Move '0-x == y --> x+y == 0' and similar combines to EmitCmp.
Craig Topper [Mon, 17 Feb 2020 06:13:11 +0000 (22:13 -0800)]
[X86] Move '0-x == y --> x+y == 0' and similar combines to EmitCmp.

AArch64 handles this pattern in their lowering code. By emitting
CMN. ARM handles it as an isel pattern.

4 years agoRevert "Add LazyCallGraph API to add function to RefSCC"
Brian Gesiak [Mon, 17 Feb 2020 19:25:10 +0000 (14:25 -0500)]
Revert "Add LazyCallGraph API to add function to RefSCC"

This reverts commit https://reviews.llvm.org/rG449a13509190b1c57e5fcf5cd7e8f0f647f564b4,
due to buildbot failures such as
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-avx2-linux/builds/13251.

4 years agoGlobalISel: Allow running localizer earlier
Matt Arsenault [Mon, 10 Feb 2020 01:38:37 +0000 (20:38 -0500)]
GlobalISel: Allow running localizer earlier

This required legal and regbankselected MIR for seemingly no
reason. For AMDGPU this wouldn't see legalized G_GLOBAL_VALUEs.

4 years agoFix modules build after https://reviews.llvm.org/D73835 (IRBuilder virtualization...
Vedant Kumar [Mon, 17 Feb 2020 19:21:32 +0000 (11:21 -0800)]
Fix modules build after https://reviews.llvm.org/D73835 (IRBuilder virtualization change)

I readily admit that I don't know why this fixes the modules build, but
it seems to get things building again. Previously I saw the error
message:

http://lab.llvm.org:8080/green/view/LLDB/job/lldb-cmake/9404/consoleFull#-361314398a1ca8a51-895e-46c6-af87-ce24fa4cd561

```
/Users/buildslave/jenkins/workspace/lldb-cmake/llvm-project/llvm/include/llvm/IR/IRBuilderFolder.h:18:10: fatal error: cyclic dependency in module 'LLVM_intrinsic_gen': LLVM_intrinsic_gen -> LLVM_IR -> LLVM_intrinsic_gen

         ^
While building module 'LLVM_intrinsic_gen' imported from /Users/buildslave/jenkins/workspace/lldb-cmake/llvm-project/llvm/lib/IR/IRBuilder.cpp:14:
In file included from <module-includes>:1:
/Users/buildslave/jenkins/workspace/lldb-cmake/llvm-project/llvm/include/llvm/IR/Argument.h:19:10: fatal error: could not build module 'LLVM_IR'
 ~~~~~~~~^~~~~~~~~~~~~~~~~
/Users/buildslave/jenkins/workspace/lldb-cmake/llvm-project/llvm/lib/IR/IRBuilder.cpp:14:10: fatal error: could not build module 'LLVM_intrinsic_gen'
```

And reproduced with:

cmake -G Ninja /Users/vsk/src/llvm-backup-master/llvm -DCLANG_ENABLE_ARCMT=Off -DCLANG_ENABLE_STATIC_ANALYZER=Off -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra;lld;libcxx;libcxxabi;compiler-rt;libunwind;lldb' -DLLDB_USE_SYSTEM_DEBUGSERVER=On -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_ENABLE_ASSERTIONS=On -DLLVM_ENABLE_MODULES=On

4 years ago[lldb/Plugin] Remove PLUGIN from Process POSIX & Linux
Jonas Devlieghere [Mon, 17 Feb 2020 19:20:17 +0000 (11:20 -0800)]
[lldb/Plugin] Remove PLUGIN from Process POSIX & Linux

ProcessPOSIX and ProcessLinux are not real plugins and should not be
marked as such. This should fix the Linux bots.

4 years agoAMDGPU/GlobalISel: Custom lower 32-bit G_UDIV/G_UREM
Matt Arsenault [Wed, 12 Feb 2020 01:51:02 +0000 (20:51 -0500)]
AMDGPU/GlobalISel: Custom lower 32-bit G_UDIV/G_UREM

AMDGPUCodeGenPrepare expands this most of the time, but not always. We
will always at least need a fallback option here. This is the 3rd
implementation of the same expansion in the backend. Eventually I
would like to eliminate the IR expansion (and the DAG version
obviously).

Currently the new legalizer path produces a better result, since the
IR expansion results in extra operations which need to be combined
out. Notably, the IR expansion results in multiplies by 0.

4 years ago[CMake] CheckAtomic.cmake: catch false positives in RISC-V
Gokturk Yuksek [Mon, 17 Feb 2020 18:36:18 +0000 (18:36 +0000)]
[CMake] CheckAtomic.cmake: catch false positives in RISC-V

The check for 'HAVE_CXX_ATOMICS_WITHOUT_LIB' may create false
positives in RISC-V. This is reproducible when compiling LLVM natively
using GCC on a rv64gc (rv64imafdgc) host. Due to the 'A' (atomic)
extension, g++ replaces calls to libatomic operations on the
std::atomic<int> type with the native hardware instructions. As a
result, the compilation succeeds and the build system thinks it
doesn't need to pass '-latomic'.

Improve the reliability of the 'HAVE_CXX_ATOMICS_WITHOUT_LIB' test in
two steps:

1. Force a pre-increment on x (++x), which should force a call to a
libatomic function;

2. Because step 1 would resolve the increment to 'amoadd.w.aq' under
the 'A' extension, force the same operation on sub-word types, for
which there is no hardware support.

Reviewers: jfb, hintonda, smeenai, mgorny, JDevlieghere, jyknight
Reviewed By: jfb
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68964

4 years agoGlobalISel: Extend narrowing to G_ASHR
Matt Arsenault [Sun, 9 Feb 2020 20:48:31 +0000 (15:48 -0500)]
GlobalISel: Extend narrowing to G_ASHR

4 years ago[Coroutines][1/6] New pass manager: coro-early
Brian Gesiak [Thu, 26 Dec 2019 13:00:00 +0000 (08:00 -0500)]
[Coroutines][1/6] New pass manager: coro-early

Summary:
The first in a series of patches that ports the LLVM coroutines passes
to the new pass manager infrastructure. This patch implements
'coro-early'.

NB: All coroutines passes begin by checking that coroutine intrinsics are
declared within the LLVM IR module they're operating on. To do so, they call
`coro::declaresIntrinsics`. The next 3 patches in this series, which add new
pass manager implementations of the 'coro-split', 'coro-elide', and
'coro-cleanup' passes, use a similar pattern as the one used here: a static
function is shared across both old and new passes to detect if relevant
coroutine intrinsics are delcared. To make this pattern easier to read, this
patch adds `const` keywords to the parameters of `coro::declaresIntrinsics`.

Reviewers: GorNishanov, lewissbaker, junparser, chandlerc, deadalnix, wenlei

Reviewed By: wenlei

Subscribers: ychen, wenlei, EricWF, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D71898

4 years ago[lldb/Plugin] Fix plugin definition for ProcessWindows
Jonas Devlieghere [Mon, 17 Feb 2020 18:23:43 +0000 (10:23 -0800)]
[lldb/Plugin] Fix plugin definition for ProcessWindows

This should fix the unresolved external symbol error.

4 years ago[FPEnv][ARM] Don't call mutateStrictFPToFP when lowering
John Brawn [Mon, 17 Feb 2020 16:55:32 +0000 (16:55 +0000)]
[FPEnv][ARM] Don't call mutateStrictFPToFP when lowering

mutateStrictFPToFP can delete the node and replace it with another with the same
value which can later cause problems, and returning the result of
mutateStrictFPToFP doesn't work because SelectionDAGLegalize expects that the
returned value has the same number of results as the original. Instead handle
things by doing the mutation manually.

Differential Revision: https://reviews.llvm.org/D74726

4 years agoReapply "[IRBuilder] Virtualize IRBuilder"
Nikita Popov [Sun, 16 Feb 2020 16:10:09 +0000 (17:10 +0100)]
Reapply "[IRBuilder] Virtualize IRBuilder"

Relative to the original commit, this fixes some warnings,
and is based on the deletion of the IRBuilder copy constructor
in D74693. The automatic copy constructor would no longer be
safe.

-----

Related llvm-dev thread:
http://lists.llvm.org/pipermail/llvm-dev/2020-February/138951.html

This patch moves the IRBuilder from templating over the constant
folder and inserter towards making both of these virtual.
There are a couple of motivations for this:

1. It's not possible to share code between use-sites that use
different IRBuilder folders/inserters (short of templating the code
and moving it into headers).
2. Methods currently defined on IRBuilderBase (which is not templated)
do not use the custom inserter, resulting in subtle bugs (e.g.
incorrect InstCombine worklist management). It would be possible to
move those into the templated IRBuilder, but...
3. The vast majority of the IRBuilder implementation has to live
in the header, because it depends on the template arguments.
4. We have many unnecessary dependencies on IRBuilder.h,
because it is not easy to forward-declare. (Significant parts of
the backend depend on it via TargetLowering.h, for example.)

This patch addresses the issue by making the following changes:

* IRBuilderDefaultInserter::InsertHelper becomes virtual.
  IRBuilderBase accepts a reference to it.
* IRBuilderFolder is introduced as a virtual base class. It is
 implemented by ConstantFolder (default), NoFolder and TargetFolder.
  IRBuilderBase has a reference to this as well.
* All the logic is moved from IRBuilder to IRBuilderBase. This means
  that methods can in the future replace their IRBuilder<> & uses
  (or other specific IRBuilder types) with IRBuilderBase & and thus
  be usable with different IRBuilders.
* The IRBuilder class is now a thin wrapper around IRBuilderBase.
  Essentially it only stores the folder and inserter and takes care
  of constructing the base builder.

What this patch doesn't do, but should be simple followups after this change:

* Fixing use of the inserter for creation methods originally defined
  on IRBuilderBase.
* Replacing IRBuilder<> uses in arguments with IRBuilderBase, where useful.
* Moving code from the IRBuilder header to the source file.

From the user perspective, these changes should be mostly transparent:
The only thing that consumers using a custom inserted may need to do is
inherit from IRBuilderDefaultInserter publicly and mark their InsertHelper
as public.

Differential Revision: https://reviews.llvm.org/D73835

4 years ago[Polly] Fix build after IRBuilder changes
Nikita Popov [Mon, 17 Feb 2020 18:01:18 +0000 (19:01 +0100)]
[Polly] Fix build after IRBuilder changes

Simply dropping the createPollyIRBuilder() function here, because
it doesn't do much. Also directly initialize Expander in
ScopExpander instead of going through the copy-constructor.

4 years agoAdd LazyCallGraph API to add function to RefSCC
Brian Gesiak [Tue, 4 Feb 2020 03:50:39 +0000 (22:50 -0500)]
Add LazyCallGraph API to add function to RefSCC

Summary:
Depends on https://reviews.llvm.org/D70927.

`LazyCallGraph::addNewFunctionIntoSCC` allows users to insert a new
function node into a call graph, into a specific, existing SCC.

Extend this interface such that functions can be added even when they do
not belong in any existing SCC, but instead in a new SCC within an
existing RefSCC.

The ability to insert new functions as part of a RefSCC is necessary for
outlined functions that do not form a strongly connected cycle with the
function they are outlined from. An example of such a function would be the
coroutine funclets 'f.resume', etc., which are outlined from a coroutine 'f'.
Coroutine 'f' only references the funclets' addresses, it does not call
them directly.

Reviewers: jdoerfert, chandlerc, wenlei, hfinkel

Reviewed By: jdoerfert

Subscribers: hfinkel, JonChesterfield, mehdi_amini, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72226

4 years ago[ARM,MVE] Add vector-scalar intrinsics
Mikhail Maltsev [Mon, 17 Feb 2020 17:47:05 +0000 (17:47 +0000)]
[ARM,MVE] Add vector-scalar intrinsics

Summary:
This patch adds vector-scalar variants to the following families of
MVE intrinsics:
* vaddq
* vsubq
* vmulq
* vqaddq
* vqsubq
* vhaddq
* vhsubq
* vqdmulhq
* vqrdmulhq

The vector-scalar variants perform a splat operation on the scalar
operand and then perform the same operations as their vector-vector
counterparts. Code generation is done accordingly (using LLVM IR 'insert'
and 'shuffle' operations which are later converted into an ARMvdup
SDNode).

Reviewers: simon_tatham, dmgreen, MarkMurrayARM, ostannard

Reviewed By: dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74620

4 years agoGlobalISel: Fix missing const
Matt Arsenault [Mon, 17 Feb 2020 17:08:39 +0000 (12:08 -0500)]
GlobalISel: Fix missing const

4 years ago[IRBuilder] Delete copy constructor
Nikita Popov [Sun, 16 Feb 2020 16:46:26 +0000 (17:46 +0100)]
[IRBuilder] Delete copy constructor

D73835 will make IRBuilder no longer trivially copyable. This patch
deletes the copy constructor in advance, to separate out the breakage.

Currently, the IRBuilder copy constructor is usually used by accident,
not by intention.  In rG7c362b25d7a9 I've fixed a number of cases where
functions accepted IRBuilder rather than IRBuilder &, thus performing
an unnecessary copy. In rG5f7b92b1b4d6 I've fixed cases where an
IRBuilder was copied, while an InsertPointGuard should have been used
instead.

The only non-trivial use of the copy constructor is the
getIRBForDbgInsertion() helper, for which I separated construction and
setting of the insertion point in this patch.

Differential Revision: https://reviews.llvm.org/D74693

4 years ago[IRBuilder] Avoid passing IRBuilder by value; NFC
Nikita Popov [Mon, 17 Feb 2020 16:15:06 +0000 (17:15 +0100)]
[IRBuilder] Avoid passing IRBuilder by value; NFC

I've fixed most of these before, but missed some occurrences
in targets I don't usually build.

4 years agoGlobalISel: Extend shift narrowing to G_SHL
Matt Arsenault [Sun, 9 Feb 2020 16:24:39 +0000 (11:24 -0500)]
GlobalISel: Extend shift narrowing to G_SHL

4 years ago[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin
Jonas Devlieghere [Mon, 17 Feb 2020 17:02:29 +0000 (09:02 -0800)]
[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin

This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

Differential revision: https://reviews.llvm.org/D73067

4 years ago[lldb] Fix Windows bot.
Jonas Devlieghere [Mon, 17 Feb 2020 17:06:18 +0000 (09:06 -0800)]
[lldb] Fix Windows bot.

Should fix error C2039: 'toupper': is not a member of 'std'.

4 years agoRevert "[libc++] Move abs and div into stdlib.h to fix header cycle."
Raphael Isemann [Mon, 17 Feb 2020 16:59:08 +0000 (17:59 +0100)]
Revert "[libc++] Move abs and div into stdlib.h to fix header cycle."

This reverts commit 82b47b2978405f802a33b00d046e6f18ef6a47be.

This broke Clang and LLDB module builds without -fmodules-local-submodule-visbility.
I'll revert this for now until we have a fix and reland once Clang
can properly handle this code.

See also the discussion in https://reviews.llvm.org/rG82b47b2978405f802a33b00d046e6f18ef6a47be

4 years agoHide implementation details. NFC>
Benjamin Kramer [Mon, 17 Feb 2020 16:55:03 +0000 (17:55 +0100)]
Hide implementation details. NFC>

4 years agoReland "[clang-tools-extra] fix the check for if '-latomic' is necessary""
Gokturk Yuksek [Mon, 17 Feb 2020 16:38:59 +0000 (16:38 +0000)]
Reland "[clang-tools-extra] fix the check for if '-latomic' is necessary""

The buildbot failures on MSVC should have been fixed by f128f442a3d.

4 years agoAMDGPU/GlobalISel: Skip DAG hack passes on selected functions
Matt Arsenault [Mon, 23 Dec 2019 22:34:59 +0000 (17:34 -0500)]
AMDGPU/GlobalISel: Skip DAG hack passes on selected functions

The way fallback to SelectionDAG works is somewhat surprising to
me. When the fallback path is enabled, the entire set of SelectionDAG
selector passes is added to the pass pipeline, and each one needs to
check if the function was selected. This results in the surprising
behavior of running SIFixSGPRCopies for example, but only if
-global-isel-abort=2 is used.

SIAddIMGInitPass is also added in addInstSelector, but I'm not sure
why we have this pass or if it should be added somewhere else for
GlobalISel.

4 years ago[SelectionDAG] Expose the "getValidShiftAmount" helpers available. NFCI.
Simon Pilgrim [Mon, 17 Feb 2020 13:38:20 +0000 (13:38 +0000)]
[SelectionDAG] Expose the "getValidShiftAmount" helpers available. NFCI.

These are going to be useful in TargetLowering::SimplifyDemandedBits, so expose these helpers outside of SelectionDAG.cpp

Also add an getValidShiftAmountConstant early-out to getValidMinimumShiftAmountConstant/getValidMaximumShiftAmountConstant so we can use them for scalar cases as well.

4 years agoGlobalISel: Add combine to narrow G_LSHR
Matt Arsenault [Sun, 9 Feb 2020 05:18:04 +0000 (00:18 -0500)]
GlobalISel: Add combine to narrow G_LSHR

Produce an unmerge to a narrower type and introduce a narrower shift
if needed. I wasn't sure if there was a better way to parameterize the
target's preferred shift type for the GICombineRule, so manually call
the combine helper.

4 years agoAMDGPU/GlobalISel: Select llvm.amdgcn.s.buffer.load
Matt Arsenault [Thu, 30 Jan 2020 01:34:32 +0000 (20:34 -0500)]
AMDGPU/GlobalISel: Select llvm.amdgcn.s.buffer.load

Doesn't try to fail on the dlc bit pre-gfx10 like the DAG lowering
does.

4 years ago[clang][Index] Visit the default parameter arguements in libindex.
Haojian Wu [Wed, 12 Feb 2020 13:42:18 +0000 (14:42 +0100)]
[clang][Index] Visit the default parameter arguements in libindex.

Summary:
We are missing the default parmeter arguments when IndexFunctionLocals
is true.

Fixes https://github.com/clangd/clangd/issues/285.

Reviewers: kadircet

Subscribers: kristof.beyls, ilya-biryukov, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74610

4 years ago[ARM] Add initial support for Custom Datapath Extension (CDE)
Mikhail Maltsev [Mon, 17 Feb 2020 15:37:49 +0000 (15:37 +0000)]
[ARM] Add initial support for Custom Datapath Extension (CDE)

Summary:
This patch adds assembly-level support for a new Arm M-profile
architecture extension, Custom Datapath Extension (CDE).

A brief description of the extension is available at
https://developer.arm.com/architectures/instruction-sets/custom-instructions

The latest specification for CDE is currently a beta release and is
available at
https://static.docs.arm.com/ddi0607/aa/DDI0607A_a_armv8m_arm_supplement_cde.pdf

CDE allows chip vendors to add custom CPU instructions.  The CDE
instructions re-use the same encoding space as existing coprocessor
instructions (such as MRC, MCR, CDP etc.). Each coprocessor in range
cp0-cp7 can be configured as either general purpose (GCP) or custom
datapath (CDEv1).  This configuration is defined by the CPU vendor and
is provided to LLVM using 8 subtarget features: cdecp0 ... cdecp7.

The semantics of CDE instructions are implementation-defined, but the
instructions are guaranteed to be pure (that is, they are stateless,
they do not access memory or any registers except their explicit
inputs/outputs).

CDE requires the CPU to support at least Armv8.0-M mainline
architecture. CDE includes 3 sets of instructions:
* Instructions that operate on general purpose registers and NZCV
  flags
* Instructions that operate on the S or D register file (require
  either FP or MVE extension)
* Instructions that operate on the Q register file, require MVE

The user-facing names that can be specified on the command line are
the same as the 8 subtarget feature names. For example:

    $ clang -target arm-none-none-eabi -march=armv8m.main+cdecp0+cdecp3

tells the compiler that the coprocessors 0 and 3 are configured as
CDEv1 and the remaining coprocessors are configured as GCP (which is
the default).

Reviewers: simon_tatham, ostannard, dmgreen, eli.friedman

Reviewed By: simon_tatham

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74044

4 years agoAMDGPU/GlobalISel: Run the localizer pass
Matt Arsenault [Mon, 10 Feb 2020 00:42:57 +0000 (19:42 -0500)]
AMDGPU/GlobalISel: Run the localizer pass

While looking at the output on real sized programs, there is a lot of
extra SGPR spilling compared to the DAG path. This seems to largely be
from all constants being SGPRs in the entry block.

4 years agoSeparate DIERef vs. user_id_t: m_function_scope_qualified_name_map
Jan Kratochvil [Mon, 17 Feb 2020 15:31:25 +0000 (16:31 +0100)]
Separate DIERef vs. user_id_t: m_function_scope_qualified_name_map

As discussed in https://reviews.llvm.org/D73206#1871895 there is both
`DIERef` and `user_id_t` and sometimes (for DWZ) we need to encode Main
CU into them and sometimes we cannot as it is unavailable at that point
and at the same time not even needed.

I have also noticed `DIERef` and `user_id_t` in fact contain the same
information which can be seen in SymbolFileDWARF::GetUID.

SB* API/ABI is already using `user_id_t` and it needs to encode Main CU
for DWZ. Therefore what about making `DIERef` the identifier not
containing Main CU and `user_id_t` the identifier containing Main CU?

It is sort of a revert of D63322.

I find this patch as a NFC cleanup to the codebase - to satisfy a new
premise `user_id_t` is used as little as possible and thus only for
external interfaces which must not deal with MainCU in any way.

Its larger goal is to satisfy a plan to implement DWZ support.

Differential Revision: https://reviews.llvm.org/D74637

4 years ago[CMake] Fix setting result of libatomic check for MSVC
Luís Marques [Mon, 17 Feb 2020 15:21:41 +0000 (15:21 +0000)]
[CMake] Fix setting result of libatomic check for MSVC

We were skipping the libatomic requirement check for MSVC, but not setting
the corresponding variable, HAVE_CXX_ATOMICS_WITHOUT_LIB. D69869 seems to
have to failed to build on ARM MSVC because of that, and was reverted. This
should probably fix the issue. The plan is to check the result of the build
bots and then submit a more thoroughly refactored version for review.

4 years ago[AArch64] Implement passing SVE vectors by ref for AAPCS.
Sander de Smalen [Mon, 17 Feb 2020 14:27:27 +0000 (14:27 +0000)]
[AArch64] Implement passing SVE vectors by ref for AAPCS.

Summary:
This patch implements the part of the calling convention
where SVE Vectors are passed by reference. This means the
caller must allocate stack space for these objects and
pass the address to the callee.

Reviewers: efriedma, rovka, cameron.mcinally, c-rhodes, rengolin

Reviewed By: efriedma

Subscribers: tschuett, kristof.beyls, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D71216

4 years ago[mlir] Linalg: Extend promotion to non f32 buffers.
Pierre Oechsel [Mon, 17 Feb 2020 14:56:08 +0000 (15:56 +0100)]
[mlir] Linalg: Extend promotion to non f32 buffers.

Summary:
Linalg's promotion pass was only supporting f32 buffers due to how the
zero value was build for the `fill` operation.

Moreover, `promoteSubViewOperands` was returning a vector with one entry
per float subview while omitting integer subviews. For a program
with only integer subviews the return vector would be of size 0.
However, `promoteSubViewsOperands` would try to access a non zero
number of entries of this vector, resulting in a sefgault.

Reviewers: nicolasvasilache, ftynse

Reviewed By: ftynse

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, liufengdb, Joonsoo, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74532

4 years ago[DAGCombine] Combine pattern for REV16
Sjoerd Meijer [Mon, 17 Feb 2020 14:49:58 +0000 (14:49 +0000)]
[DAGCombine] Combine pattern for REV16

This adds another pattern to the combiner for a case that we were not handling
to generate the REV16 instruction for ARM/Thumb2 and a bswap+ror on X86.

Differential Revision: https://reviews.llvm.org/D74032

4 years ago[wasm] Unbreak after 5fc5c7db38672c8962879b6fdce68393181c5e08. NFCI.
Benjamin Kramer [Mon, 17 Feb 2020 14:49:49 +0000 (15:49 +0100)]
[wasm] Unbreak after 5fc5c7db38672c8962879b6fdce68393181c5e08. NFCI.

4 years agoStrength reduce vectors into arrays. NFCI.
Benjamin Kramer [Mon, 17 Feb 2020 14:37:12 +0000 (15:37 +0100)]
Strength reduce vectors into arrays. NFCI.

4 years ago[libc++] Add availability markup for std::to_chars on Apple platforms
Louis Dionne [Fri, 14 Feb 2020 14:19:47 +0000 (15:19 +0100)]
[libc++] Add availability markup for std::to_chars on Apple platforms

Summary:
Otherwise, one gets link errors when trying to back-deploy to older platforms.

rdar://problem/57854364

Reviewers: lichray, EricWF

Subscribers: christof, jkorous, dexonsmith, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D74626

4 years agoAMDGPU/GlobalISel: Select v2s32->v2s16 G_TRUNC
Matt Arsenault [Sun, 16 Feb 2020 00:18:47 +0000 (19:18 -0500)]
AMDGPU/GlobalISel: Select v2s32->v2s16 G_TRUNC

It would be nice if there was a way to avoid the tied operand, but as
far as I can tell there isn't a way to use or with op_sel to achieve
this

4 years agoAMDGPU/GlobalISel: Handle sbfe/ubfe intrinsic
Matt Arsenault [Mon, 10 Feb 2020 23:06:17 +0000 (18:06 -0500)]
AMDGPU/GlobalISel: Handle sbfe/ubfe intrinsic

Try to handle arbitrary scalar BFEs by packing the operands. The DAG
gives up on non-constant arguments. We're still missing any constant
folding, so we end up with pretty ugly code most of the time. Also
handle the 64-bit scalar case, which the DAG doesn't try to do.

4 years agoGlobalISel: Add matcher for G_LSHR
Matt Arsenault [Sat, 15 Feb 2020 21:46:04 +0000 (16:46 -0500)]
GlobalISel: Add matcher for G_LSHR

4 years ago[AMDGPU] Fix some tests that did not specify -mcpu
Tim Renouf [Thu, 13 Feb 2020 11:44:52 +0000 (11:44 +0000)]
[AMDGPU] Fix some tests that did not specify -mcpu

Summary:
This fixes some tests that did not specify -mcpu. Doing that disables
all subtarget features, which gives behavior that (a) does not
necessarily correspond to any actual target, and (b) can change as we
add new subtarget features.

Also added gfx1010 to memtime test.

Differential Revision: https://reviews.llvm.org/D74594

Change-Id: I8c0fe4fa03e9a93ef8bb722cd42d22e064526309

4 years ago[ADT] Use inherited ctors to forward to base. NFCI.
Benjamin Kramer [Mon, 17 Feb 2020 13:38:11 +0000 (14:38 +0100)]
[ADT] Use inherited ctors to forward to base. NFCI.

4 years ago[ASTImporter] Added visibility check for scoped enums.
Balázs Kéri [Mon, 17 Feb 2020 13:25:16 +0000 (14:25 +0100)]
[ASTImporter] Added visibility check for scoped enums.

Summary:
ASTImporter makes now difference between C++11 scoped enums with same
name in different translation units if these are not visible outside.
Enum declarations are linked into decl chain correctly.

Reviewers: martong, a.sidorin, shafik, a_sidorin, teemperor

Reviewed By: shafik, a_sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, teemperor, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74554

4 years ago[lldb] Fix build error from 07355c1c08b
Pavel Labath [Mon, 17 Feb 2020 13:12:29 +0000 (14:12 +0100)]
[lldb] Fix build error from 07355c1c08b

The error is: no matching function for call to 'transform(std::string&, std::__cxx11::basic_string<char>::iterator, <unresolved overloaded function type>)'

The fix: replace llvm::transform with an equally simple hand-rolled
loop.

4 years ago[lldb/DWARF] Re-enable basic dwp support
Pavel Labath [Wed, 29 Jan 2020 11:00:29 +0000 (12:00 +0100)]
[lldb/DWARF] Re-enable basic dwp support

Summary:
This patch removes the bitrotted SymbolFileDWARF(Dwo)Dwp classes, and
replaces them with dwp support implemented directly inside
SymbolFileDWARFDwo, in a manner mirroring the implementation in llvm.
This patch does:
- add support for the .debug_cu_index section to our DWARFContext
- adds a llvm::DWARFUnitIndex argument to the DWARFUnit constructors.
  This argument is used to look up the offsets of the debug_info and
  debug_abbrev contributions in the sections of the dwp file.
- makes sure the creation of the DebugInfo object as well as the initial
  discovery of DWARFUnits is thread-safe, as we can now call this
  concurrently when doing parallel indexing.

This patch does not:
- use the DWARFUnitIndex to search for other kinds of contributions
  (debug_loc, debug_ranges, etc.). This means that units which reference
  these sections will not work correctly. These will be handled by
  follow-up patches, but even the present level of support is sufficient
  to enable basic functionality.
- Make the llvm::DWARFContext thread-safe. Right now, it just avoids this
  problem by ensuring everything is initialized ahead of time. However,
  this is something we will run into more often as we try to use more of
  llvm, and so I plan to start looking into our options here.

Reviewers: JDevlieghere, aprantl, clayborg

Subscribers: mgorny, mgrang, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D73783

4 years agoRevert "[CMake] Explicitly specify paths to libc++abi in CrossWinToARMLinux.cmake"
Sergej Jaskiewicz [Mon, 17 Feb 2020 13:06:30 +0000 (16:06 +0300)]
Revert "[CMake] Explicitly specify paths to libc++abi in CrossWinToARMLinux.cmake"

This reverts commit 801627ee490e1106380184256503dbd520c5f802.

4 years ago[lldb] Delete register info definitions in the x86_64 ABI classes
Pavel Labath [Mon, 3 Feb 2020 16:58:37 +0000 (17:58 +0100)]
[lldb] Delete register info definitions in the x86_64 ABI classes

Summary:
These definitions are used to "augment" information received from the remote
target with eh/debug frame and "generic" register numbers.

Besides being verbose, this information was also incomplete (new registers like
xmm16-31 were missing) and sometimes even downright wrong (ymm register
numbers).

Most of this information is available via llvm's MCRegisterInfo. This patch
creates a new class, MCBasedABI, which retrieves the eh and debug frame register
numbers this way. The tricky part here is that the llvm class uses all-caps
register names, whereas lldb register are lowercase, and sometimes called
slightly differently. Therefore this class introduces some hooks to allow a
subclass to customize the MC lookup. The subclass also needs to suply the
"generic" register numbers, as this is an lldb invention.

This patch ports the x86_64 ABI classes to use the new register info mechanism.
It also creates a new "ABIx86_64" class which can be used to house code common
to x86_64 both ABIs. Right now, this just consists of a single function, but
there are plenty of other things that could be moved here too.

Reviewers: JDevlieghere, jasonmolenda

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D74244

4 years ago[CMake] Explicitly specify paths to libc++abi in CrossWinToARMLinux.cmake
Sergej Jaskiewicz [Mon, 17 Feb 2020 12:22:18 +0000 (15:22 +0300)]
[CMake] Explicitly specify paths to libc++abi in CrossWinToARMLinux.cmake

Summary:
D69169, which was necessary for running libc++ tests on remote host, got reverted. I couldn't think of a less invasive way to achieve this behavior but specify libc++abi paths in our cache file.

Reviewers: vvereschaka, aorlov, andreil99, EricWF

Reviewed By: vvereschaka

Subscribers: mgorny, kristof.beyls, ldionne, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74347

4 years ago[LLDB] Fix GCC warnings about extra semicolons. NFC.
Martin Storsjö [Mon, 17 Feb 2020 12:15:53 +0000 (14:15 +0200)]
[LLDB] Fix GCC warnings about extra semicolons. NFC.

4 years ago[lldb] Add @skipIfXmlSupportMissing to TestWasm.py
Pavel Labath [Mon, 17 Feb 2020 12:09:47 +0000 (13:09 +0100)]
[lldb] Add @skipIfXmlSupportMissing to TestWasm.py

These tests rely on being able to parse qXfer:libraries:read packet
(which is in xml).

4 years ago[ARM] MVE vector reduce MLA tests. NFC.
David Green [Mon, 17 Feb 2020 11:41:16 +0000 (11:41 +0000)]
[ARM] MVE vector reduce MLA tests. NFC.

4 years ago[LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging
Paolo Severini [Mon, 17 Feb 2020 11:42:23 +0000 (12:42 +0100)]
[LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging

Add a dynamic loader plug-in class for WebAssembly modules.

Differential Revision: https://reviews.llvm.org/D72751

4 years ago[lldb/lldb-server] Add target.xml support for qXfer request.
Levon Ter-Grigoryan [Mon, 17 Feb 2020 10:55:55 +0000 (11:55 +0100)]
[lldb/lldb-server] Add target.xml support for qXfer request.

Summary:
Synthesize target.xml in lldb-server to avoid a long chain of
qRegisterInfo packets, which can be slow over low-latency links.

Reviewers: jarin, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D74217

4 years ago[AArch64][SVE] Add SVE index intrinsic
Kerry McLaughlin [Mon, 17 Feb 2020 10:11:42 +0000 (10:11 +0000)]
[AArch64][SVE] Add SVE index intrinsic

Summary:
Implements the @llvm.aarch64.sve.index intrinsic, which
takes a scalar base and step value.

This patch also adds the printSImm function to AArch64InstPrinter
to ensure that immediates of type i8 & i16 are printed correctly.

Reviewers: sdesmalen, andwar, efriedma, dancgr, cameron.mcinally, rengolin

Reviewed By: cameron.mcinally

Subscribers: tatyana-krasnukha, tschuett, kristof.beyls, hiraditya, rkruppe, arphaman, psnobl, cfe-commits, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74550

4 years ago[AArch64] Fix small typos in the target description. NFC.
Sjoerd Meijer [Mon, 17 Feb 2020 10:13:47 +0000 (10:13 +0000)]
[AArch64] Fix small typos in the target description. NFC.

Patch by Tamas Petz.

Differential Revision: https://reviews.llvm.org/D74603

4 years ago[TableGen] Don't elide bitconverts in PatFrag fragments.
Simon Tatham [Mon, 17 Feb 2020 09:11:35 +0000 (09:11 +0000)]
[TableGen] Don't elide bitconverts in PatFrag fragments.

Summary:
In the DAG pattern backend, `SimplifyTree` simplifies a pattern by
removing bitconverts between two identical types. But that function is
also run on the fragments list in instances of `PatFrags`, in which
the types haven't been specified yet. So the input and output of the
bitconvert always evaluate to the empty set of types, which makes them
compare equal. So the test always passes, and bitconverts are
unconditionally removed from the PatFrag RHS.

Fixed by spotting the empty type set and using it to inhibit the
optimization.

Reviewers: nhaehnle, hfinkel

Reviewed By: nhaehnle

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74627

4 years ago[lldb] [nfc] Simplify user_id_t -> size_t
Jan Kratochvil [Mon, 17 Feb 2020 09:24:19 +0000 (10:24 +0100)]
[lldb] [nfc] Simplify user_id_t -> size_t

As discussed in https://reviews.llvm.org/D73206#1871895> simplifying
usage of `user_id_t`.

There is even written:
  // The compile unit ID is the index of the DWARF unit.
  DWARFUnit *dwarf_cu = info->GetUnitAtIndex(comp_unit->GetID());

Differential Revision: https://reviews.llvm.org/D74670

4 years ago[NFCI][DebugInfo]: Corrected a Typo.
Sourabh Singh Tomar [Mon, 17 Feb 2020 09:18:25 +0000 (14:48 +0530)]
[NFCI][DebugInfo]: Corrected a Typo.

4 years ago[X86] New test to check rev16 patterns, prep step for D74032. NFC.
Sjoerd Meijer [Mon, 17 Feb 2020 09:13:21 +0000 (09:13 +0000)]
[X86] New test to check rev16 patterns, prep step for D74032. NFC.

4 years agoclang analyzer: Fix the webpage rendering
Sylvestre Ledru [Mon, 17 Feb 2020 09:02:11 +0000 (10:02 +0100)]
clang analyzer: Fix the webpage rendering

4 years ago[lldb] Fix some tests failing with gmodules after change to stdlib.h
Raphael Isemann [Mon, 17 Feb 2020 08:39:06 +0000 (09:39 +0100)]
[lldb] Fix some tests failing with gmodules after change to stdlib.h

Commit 82b47b2978405f802a33b00d046e6f18ef6a47be changes the way the stdlib.h
header is structured which seems to cause strange lookup failures in the modules
build. This updates a few failing tests so that they pass with the new
behavior of stdlib.h.

See the discussion in https://reviews.llvm.org/rG82b47b2978405f802a33b00d046e6f18ef6a47be

4 years ago[NFC][PowerPC] Update the test case scalar-equal.ll
Kang Zhang [Mon, 17 Feb 2020 08:34:56 +0000 (08:34 +0000)]
[NFC][PowerPC] Update the test case scalar-equal.ll

    Modify the command option to add --enable-no-nans-fp-math

4 years ago[MC] Delete two unused MCCodePadder functions missed by D71106
Fangrui Song [Mon, 17 Feb 2020 06:34:42 +0000 (22:34 -0800)]
[MC] Delete two unused MCCodePadder functions missed by D71106

4 years ago[PowerPC] Add the missing InstrAliasing for 64-bit rotate instructions
QingShan Zhang [Mon, 17 Feb 2020 05:42:49 +0000 (05:42 +0000)]
[PowerPC] Add the missing InstrAliasing for 64-bit rotate instructions

We have the InstAlias rules for 32-bit rotate but missing the 64-bit one.
Rotate left immediate rotlwi ra,rs,n rlwinm ra,rs,n,0,31
Rotate left rotlw ra,rs,rb rlwnm ra,rs,rb,0,31

Differential Revision: https://reviews.llvm.org/D72676

4 years ago[NFC][PowerPC] Add a new test case scalar-equal.ll
Kang Zhang [Mon, 17 Feb 2020 05:27:36 +0000 (05:27 +0000)]
[NFC][PowerPC] Add a new test case scalar-equal.ll

4 years agoFix `-Wpedantic` warning. NFC.
Michael Liao [Mon, 17 Feb 2020 05:18:01 +0000 (00:18 -0500)]
Fix `-Wpedantic` warning. NFC.

4 years ago[mlir] Address post commit feedback of D73590 for SymbolsAndSymbolTables.md
River Riddle [Mon, 17 Feb 2020 05:06:56 +0000 (21:06 -0800)]
[mlir] Address post commit feedback of D73590 for SymbolsAndSymbolTables.md

4 years ago[X86] Disable load folding for X86ISD::ADD with 128 as an immediate.
Craig Topper [Mon, 17 Feb 2020 04:52:18 +0000 (20:52 -0800)]
[X86] Disable load folding for X86ISD::ADD with 128 as an immediate.

It can be turned into a sub with -128 instead as long as the
carry flag isn't used.

4 years ago[CUDA][HIP][OpenMP] Add lib/Sema/UsedDeclVisitor.h after D70172
Fangrui Song [Mon, 17 Feb 2020 04:33:07 +0000 (20:33 -0800)]
[CUDA][HIP][OpenMP] Add lib/Sema/UsedDeclVisitor.h after D70172

4 years ago[X86] Remove unnecessary check for null SDValue. NFC
Craig Topper [Mon, 17 Feb 2020 04:24:20 +0000 (20:24 -0800)]
[X86] Remove unnecessary check for null SDValue. NFC