platform/upstream/llvm.git
6 years ago[clangd] Add ErrorCode enum class.
Haojian Wu [Tue, 7 Nov 2017 10:21:02 +0000 (10:21 +0000)]
[clangd] Add ErrorCode enum class.

Summary: Avoid using magic number in the code everywhere.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D39718

llvm-svn: 317559

6 years ago[docs] Add section 'Half-Precision Floating Point'
Sjoerd Meijer [Tue, 7 Nov 2017 10:09:45 +0000 (10:09 +0000)]
[docs] Add section 'Half-Precision Floating Point'

This documents the differences/interactions between _Float16 and __fp16
and is a companion change for the _Float16 type implementation (r312794).

Differential Revision:  https://reviews.llvm.org/D35295

llvm-svn: 317558

6 years ago[CGP] Disable Select instruction handling in optimizeMemoryInst. NFC
Serguei Katkov [Tue, 7 Nov 2017 09:43:08 +0000 (09:43 +0000)]
[CGP] Disable Select instruction handling in optimizeMemoryInst. NFC

This patch disables the handling of selects in optimization
extensing scope of optimizeMemoryInst.

The optimization itself is disable by default.
The idea here is just to switch optimiztion level step by step.

Specifically, first optimization will be enabled only for Phi nodes,
then select instructions will be added.

In case someone will complain about perfromance it will be easier to
detect what part of optimizations is responsible for that.

Differential Revision: https://reviews.llvm.org/D36073

llvm-svn: 317555

6 years ago[docs][ARM] Add HowTo for cross compiling and testing compiler-rt builtins
Peter Smith [Tue, 7 Nov 2017 09:40:05 +0000 (09:40 +0000)]
[docs][ARM] Add HowTo for cross compiling and testing compiler-rt builtins

This document contains information on how to cross-compile the compiler-rt
builtins library for several flavours of Arm target and how to test the
libraries using qemu.

Differential Revision: https://reviews.llvm.org/D39600

llvm-svn: 317554

6 years ago[clangd] fix MSVC build errors
Sam McCall [Tue, 7 Nov 2017 08:57:54 +0000 (08:57 +0000)]
[clangd] fix MSVC build errors

llvm-svn: 317553

6 years agoAdd new check in google module for Objective-C code to ensure global variables follow...
Haojian Wu [Tue, 7 Nov 2017 08:53:37 +0000 (08:53 +0000)]
Add new check in google module for Objective-C code to ensure global variables follow the naming convention of Google Objective-C Style Guide

Summary:
This is a new checker for objc files in clang-tidy.

The new check finds global variable declarations in Objective-C files that are not follow the pattern of variable names in Google's Objective-C Style Guide.

All the global variables should follow the pattern of "g[A-Z].*" (variables) or "k[A-Z].*" (constants). The check will suggest a variable name that follows the pattern
if it can be inferred from the original name.

Patch by Yan Zhang!

Reviewers: benhamilton, hokein, alexfh

Reviewed By: hokein

Subscribers: Eugene.Zelenko, mgorny

Differential Revision: https://reviews.llvm.org/D39391

llvm-svn: 317552

6 years ago[X86] Don't clobber reserved registers with stack adjustments
Bjorn Steinbrink [Tue, 7 Nov 2017 08:50:21 +0000 (08:50 +0000)]
[X86] Don't clobber reserved registers with stack adjustments

Summary:
Calls using invoke in funclet based functions are assumed to clobber
all registers, which causes the stack adjustment using pops to consider
all registers not defined by the call to be undefined, which can
unfortunately include the base pointer, if one is needed.

To prevent this (and possibly other hazards), skip reserved registers
when looking for candidate registers.

This fixes issue #45034 in the Rust compiler.

Reviewers: mkuper

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39636

llvm-svn: 317551

6 years ago[X86] Add patterns to fold a 64-bit load into the EVEX vcvtph2ps instructions.
Craig Topper [Tue, 7 Nov 2017 07:13:07 +0000 (07:13 +0000)]
[X86] Add patterns to fold a 64-bit load into the EVEX vcvtph2ps instructions.

llvm-svn: 317548

6 years ago[X86] Add patterns for folding a v16i8 with the VEX vcvtph2ps intrinsics.
Craig Topper [Tue, 7 Nov 2017 07:13:06 +0000 (07:13 +0000)]
[X86] Add patterns for folding a v16i8 with the VEX vcvtph2ps intrinsics.

Disable the peephole pass to prove that the pattern is working.

llvm-svn: 317547

6 years ago[X86] Add a test for a 128-bit vector load feeding a cvtph2ps intrinsic.
Craig Topper [Tue, 7 Nov 2017 07:13:05 +0000 (07:13 +0000)]
[X86] Add a test for a 128-bit vector load feeding a cvtph2ps intrinsic.

The instruction only loads 64-bits, but we should be able to fold a wider load and let it be narrowed.

llvm-svn: 317546

6 years ago[X86] Remove alignment from a load in the f16c intrinsic test. The alignment shouldn...
Craig Topper [Tue, 7 Nov 2017 07:13:04 +0000 (07:13 +0000)]
[X86] Remove alignment from a load in the f16c intrinsic test. The alignment shouldn't be required for load folding.

llvm-svn: 317545

6 years ago[X86] Add support for using EVEX instructions for the legacy vcvtph2ps intrinsics.
Craig Topper [Tue, 7 Nov 2017 07:13:03 +0000 (07:13 +0000)]
[X86] Add support for using EVEX instructions for the legacy vcvtph2ps intrinsics.

Looks like there's some missed load folding opportunities for i64 loads.

llvm-svn: 317544

6 years ago[X86] Add AVX512VL command line to f16c intrinsic test to show missed EVEX opportunit...
Craig Topper [Tue, 7 Nov 2017 07:13:01 +0000 (07:13 +0000)]
[X86] Add AVX512VL command line to f16c intrinsic test to show missed EVEX opportunities for the legacy intrinsics.

llvm-svn: 317543

6 years ago[X86] Use IMPLICIT_DEF in VEX/EVEX vcvtss2sd/vcvtsd2ss patterns instead of a COPY_TO_...
Craig Topper [Tue, 7 Nov 2017 04:44:22 +0000 (04:44 +0000)]
[X86] Use IMPLICIT_DEF in VEX/EVEX vcvtss2sd/vcvtsd2ss patterns instead of a COPY_TO_REGCLASS.

ExeDepsFix pass should take care of making the registers match.

llvm-svn: 317542

6 years ago[X86] Remove 'Requires' from instructions with no patterns. NFC
Craig Topper [Tue, 7 Nov 2017 04:44:21 +0000 (04:44 +0000)]
[X86] Remove 'Requires' from instructions with no patterns. NFC

llvm-svn: 317541

6 years agoClangdTests/JSONExprTests.cpp: Appease g++-4.8 to move raw string literal out of...
NAKAMURA Takumi [Tue, 7 Nov 2017 02:18:24 +0000 (02:18 +0000)]
ClangdTests/JSONExprTests.cpp: Appease g++-4.8 to move raw string literal out of macro arg.

llvm-svn: 317538

6 years ago[analyzer] [NFC] Remove unused typedef from SVals.h
George Karpenkov [Tue, 7 Nov 2017 02:02:10 +0000 (02:02 +0000)]
[analyzer] [NFC] Remove unused typedef from SVals.h

Differential Revision: https://reviews.llvm.org/D39620

llvm-svn: 317537

6 years agoUse Path instead of Config->OutputFile. NFC.
Rafael Espindola [Tue, 7 Nov 2017 02:00:51 +0000 (02:00 +0000)]
Use Path instead of Config->OutputFile. NFC.

This function is always called with Config->OutputFile. That is not
obvious from reading the function. It should always use Path or take
no argument and always use Config->OutputFile.

llvm-svn: 317536

6 years ago[Support/UNIX] posix_fallocate() can fail with EINVAL.
Davide Italiano [Tue, 7 Nov 2017 00:47:04 +0000 (00:47 +0000)]
[Support/UNIX] posix_fallocate() can fail with EINVAL.

According to the docs on opegroup.org, the function can return
EINVAL if:

The len argument is less than zero, or the offset argument is less
than zero, or the underlying file system does not support this
operation.

I'd say it's a peculiar choice (when EONOTSUPP is right there), but
let's keep POSIX happy for now. This was independently discovered
by Mark Millard (on FreeBSD/ZFS).

Quickly ack'ed by Rui on IRC.

llvm-svn: 317535

6 years agoMake DIExpression::createFragmentExpression() return an Optional.
Adrian Prantl [Tue, 7 Nov 2017 00:45:34 +0000 (00:45 +0000)]
Make DIExpression::createFragmentExpression() return an Optional.

We can't safely split arithmetic into multiple fragments because we
can't express carry-over between fragments.

llvm-svn: 317534

6 years agoClarify the error message for unsupported aliases on Darwin
Alex Lorenz [Tue, 7 Nov 2017 00:31:19 +0000 (00:31 +0000)]
Clarify the error message for unsupported aliases on Darwin

rdar://35109556

llvm-svn: 317532

6 years ago[XRay] Minimal tool to convert xray traces to Chrome's Trace Event Format.
Keith Wyss [Tue, 7 Nov 2017 00:28:28 +0000 (00:28 +0000)]
[XRay] Minimal tool to convert xray traces to Chrome's Trace Event Format.

Minimal tool to convert xray traces to Chrome's Trace Event Format.

Summary:
Make use of Chrome Trace Event format's Duration events and stack frame dict to
produce Json files that chrome://tracing can visualize from xray function call
traces. Trace Event format is more robust and has several features like
argument logging, function categorization, multi process traces, etc. that we
can add as needed. Duration events cover an important base case.

Part of this change is rearranging the code so that the TrieNode data structure
can be used from multiple tools and can carry parameterized baggage on the
nodes. I put the actual behavior changes in llvm-xray convert exclusively.

Exploring the trace of instrumented llc was pretty nifty if overwhelming.
I can envision this being very useful for analyzing contention scenarios or
tuning parameters like batch sizes in a producer consumer queue. For more
targeted traces likemthis, let's talk about how we want to approach trace
pruning.

Reviewers: dberris, pelikan

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39362

llvm-svn: 317531

6 years agoRemove dead code.
Rui Ueyama [Tue, 7 Nov 2017 00:26:04 +0000 (00:26 +0000)]
Remove dead code.

llvm-svn: 317530

6 years agoDisable tests in lang/c/shared_lib on Windows
Stephane Sezer [Tue, 7 Nov 2017 00:14:40 +0000 (00:14 +0000)]
Disable tests in lang/c/shared_lib on Windows

Summary: These fail because `-fPIC` is not supported on Windows.

Reviewers: zturner, jingham, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D39692

llvm-svn: 317529

6 years agoReport an error if an inferred alignment for a shared symbol is too large.
Rui Ueyama [Tue, 7 Nov 2017 00:12:05 +0000 (00:12 +0000)]
Report an error if an inferred alignment for a shared symbol is too large.

Differential Revision: https://reviews.llvm.org/D39697

llvm-svn: 317528

6 years ago[IPO/LowerTypesTest] Skip blockaddress(es) when replacing uses.
Davide Italiano [Tue, 7 Nov 2017 00:09:25 +0000 (00:09 +0000)]
[IPO/LowerTypesTest] Skip blockaddress(es) when replacing uses.

Blockaddresses refer to the function itself, therefore replacing them
would cause an assertion in doRAUW.

Fixes https://bugs.llvm.org/show_bug.cgi?id=35201

This was found when trying CFI on a proprietary kernel by Dmitry Mikulin.

Differential Revision:  https://reviews.llvm.org/D39695

llvm-svn: 317527

6 years agoAMDGPU: Remove redundant combine
Matt Arsenault [Tue, 7 Nov 2017 00:06:32 +0000 (00:06 +0000)]
AMDGPU: Remove redundant combine

This combine was already done in two places. The
generic combiner already has done this since
r217610, for adds (with a single use).

This one was added in r303641, and added support for handling
or as well. r313251 later added support to the generic
combine for or. It also turns out the isOrEquivalentToAdd
check is not necessary for this combine.

Additionally, we already reproduce this combine in yet
another place in the backend, although in that version
multiple uses of the add are still folded if it will
allow a fold into the addressing mode. That version needs
to be improved to understand ors though, as well as the
correct legal offsets for private.

llvm-svn: 317526

6 years agoMove MIPS-specific code from Symbols.cpp to MIPS.cpp.
Rui Ueyama [Tue, 7 Nov 2017 00:04:22 +0000 (00:04 +0000)]
Move MIPS-specific code from Symbols.cpp to MIPS.cpp.

We have a lot of "if (MIPS)" conditions in lld because the MIPS' ABI
is different at various places than other arch's ABIs at where it
don't have to be different, but we at least want to reduce MIPS-ness
from the regular classes.

llvm-svn: 317525

6 years ago[DebugInfo] Unify logic to merge DILocations. NFC.
Vedant Kumar [Mon, 6 Nov 2017 23:15:21 +0000 (23:15 +0000)]
[DebugInfo] Unify logic to merge DILocations. NFC.

This makes DILocation::getMergedLocation() do what its comment says it
does when merging locations for an Instruction: set the common inlineAt
scope. This simplifies Instruction::applyMergedLocation() a bit.

Testing: check-llvm, check-clang

Differential Revision: https://reviews.llvm.org/D39628

llvm-svn: 317524

6 years ago[Support][Chrono] Use explicit cast of text output of time values.
Simon Dardis [Mon, 6 Nov 2017 23:01:46 +0000 (23:01 +0000)]
[Support][Chrono] Use explicit cast of text output of time values.

rL316419 exposed a platform specific issue where the type of the values
passed to llvm::format could be different to the format string.

Debian unstable for mips uses long long int for std::chrono:duration,
while x86_64 uses long int.

For mips, this resulted in the value being corrupted when rendered to a
string. Address this by explicitly casting the result of the duration_cast
to the type specified in the format string.

Reviewers: sammccall

Differential Revision: https://reviews.llvm.org/D39597

llvm-svn: 317523

6 years agoInstCombine: salvage the debug info of DCE'ed add instructions.
Adrian Prantl [Mon, 6 Nov 2017 22:49:39 +0000 (22:49 +0000)]
InstCombine: salvage the debug info of DCE'ed add instructions.

rdar://problem/31209283

llvm-svn: 317522

6 years ago[X86] Make FeatureAVX512 imply FeatureF16C.
Craig Topper [Mon, 6 Nov 2017 22:49:04 +0000 (22:49 +0000)]
[X86] Make FeatureAVX512 imply FeatureF16C.

The EVEX to VEX pass is already assuming this is true under AVX512VL. We had special patterns to use zmm instructions if VLX and F16C weren't available.

Instead just make AVX512 imply F16C to make the EVEX to VEX behavior explicitly legal and remove the extra patterns.

All known CPUs with AVX512 have F16C so this should safe for now.

llvm-svn: 317521

6 years ago[X86] Make FeatureAVX512 imply FeatureFMA.
Craig Topper [Mon, 6 Nov 2017 22:49:01 +0000 (22:49 +0000)]
[X86] Make FeatureAVX512 imply FeatureFMA.

Previously our VEX patterns were checking Subtarget.hasFMA() which checked FMA || AVX512. So we were behaving as if AVX512 implied it anyway. Which means we'd allow VEX encoded 128/256 FMA when AVX512F was enabled but AVX512VL is off. Regardless of the FMA flag.

EVEX to VEX also transforms scalar EVEX FMA instructions to their VEX versions even without the FMA flag. Similarly for 128/256 under AVX512VL.

So this makes AVX512 imply FeatureFMA to make our current behavior explicit.

All known CPUs that support AVX512 have VEX FMA instructions.

llvm-svn: 317520

6 years ago[ValueTracking] readonly (const) is a requirement for converting sqrt to llvm.sqrt...
Sanjay Patel [Mon, 6 Nov 2017 22:40:09 +0000 (22:40 +0000)]
[ValueTracking] readonly (const) is a requirement for converting sqrt to llvm.sqrt; nnan is not

As discussed in D39204, this is effectively a revert of rL265521 which required nnan
to vectorize sqrt libcalls based on the old LangRef definition of llvm.sqrt. Now that
the definition has been updated so the libcall and intrinsic have the same semantics
apart from potentially setting errno, we can remove the nnan requirement.

We have the right check to know that errno is not set:

if (!ICS.onlyReadsMemory())

...ahead of the switch.

This will solve https://bugs.llvm.org/show_bug.cgi?id=27435 assuming that's being
built for a target with -fno-math-errno.

Differential Revision: https://reviews.llvm.org/D39642

llvm-svn: 317519

6 years agoRevert r317510 "[InstCombine] Pull shifts through a select plus binop with constant"
Hans Wennborg [Mon, 6 Nov 2017 22:28:02 +0000 (22:28 +0000)]
Revert r317510 "[InstCombine] Pull shifts through a select plus binop with constant"

This broke the CodeGen/Hexagon/loop-idiom/pmpy-mod.ll test on a bunch of buildbots.

> This pulls shifts through a select+binop with a constant where the select conditionally executes the binop. We already do this for just the binop, but not with the select.
>
> This can allow us to get the select closer to other selects to enable removing one.
>
> Differential Revision: https://reviews.llvm.org/D39222
>
> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317510 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-svn: 317518

6 years agoRevert r316064 "Fix the incorrect detection of ICONV_LIBRARY_PATH"
Hans Wennborg [Mon, 6 Nov 2017 22:17:23 +0000 (22:17 +0000)]
Revert r316064 "Fix the incorrect detection of ICONV_LIBRARY_PATH"

This broke the use of libxml2 on machines where iconv() is provided by libc.
I'll follow up on the mailing list to discuss how to fix this properly.

> This is introduced in rL308711.
> Check for c library is incorrect here just because libc will be found always
> and it does not mean that iconv is presented.
>
> Thank to Andrew Krasny for narrowing down the root cause.
>
> Reviewers: ecbeckmann
> Reviewed By: ecbeckmann
> Subscribers: mgorny, llvm-commits
> Differential Revision: https://reviews.llvm.org/D38875

llvm-svn: 317517

6 years ago[analyzer] Model correct dispatch_once() 'done' value in BodyFarm
Devin Coughlin [Mon, 6 Nov 2017 22:12:19 +0000 (22:12 +0000)]
[analyzer] Model correct dispatch_once() 'done' value in BodyFarm

The analyzer's BodyFarm models dispatch_once() by comparing the passed-in
predicate against a known 'done' value. If the predicate does not have that
value, the model updates the predicate to have that value and executes the
passed in block.

Unfortunately, the current model uses the wrong 'done' value: 1 instead of ~0.
This interferes with libdispatch's static inline function _dispatch_once(),
which enables a fast path if the block has already been executed. That function
uses __builtin_assume() to tell the compiler that the done flag is set to ~0 on
exit. When r302880 added modeling of __builtin_assume(), this caused the
analyzer to assume 1 == ~0. This in turn caused the analyzer to never explore any code after a call to dispatch_once().

This patch regains the missing coverage by updating BodyFarm to use the correct
'done' value.

rdar://problem/34413048

Differential Revision: https://reviews.llvm.org/D39691

llvm-svn: 317516

6 years ago[OMPT] Fix null pointer in parallel/no_thread_num_clause.c
Jonas Hahnfeld [Mon, 6 Nov 2017 22:06:14 +0000 (22:06 +0000)]
[OMPT] Fix null pointer in parallel/no_thread_num_clause.c

Looks like the implementation of printf on Darwin uses "0x0"
instead of "(nil)" like glibc does.

llvm-svn: 317515

6 years agoFix comment /NFC
Xinliang David Li [Mon, 6 Nov 2017 21:57:51 +0000 (21:57 +0000)]
Fix comment /NFC

llvm-svn: 317514

6 years ago[MIRPrinter] Use %subreg.xxx syntax for subregister index operands
Bjorn Pettersson [Mon, 6 Nov 2017 21:46:06 +0000 (21:46 +0000)]
[MIRPrinter] Use %subreg.xxx syntax for subregister index operands

Summary:
Print %subreg.<subregidxname> instead of just the subregister
index when printing immediate operands corresponding to subreg
indices in INSERT_SUBREG, EXTRACT_SUBREG, SUBREG_TO_REG and
REG_SEQUENCE.

Reviewers: qcolombet, MatzeB

Reviewed By: MatzeB

Subscribers: nhaehnle, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D39696

llvm-svn: 317513

6 years ago[LSan] Detect dynamic loader by its base address.
Alex Shlyapnikov [Mon, 6 Nov 2017 21:27:06 +0000 (21:27 +0000)]
[LSan] Detect dynamic loader by its base address.

Summary:
Relanding D38600, which was reverted due to various PPC bot failures.

If it breaks something again, please provide some pointers to broken
bots, not just revert it, otherwise it's very hard to reason what's
wrong with this commit.

Whenever possible (Linux + glibc 2.16+), detect dynamic loader module by
its base address, not by the module name matching. The current name
matching approach fails on some configurations.

Reviewers: eugenis

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D39275

llvm-svn: 317512

6 years agoVary Windows toolchain selection by -fuse-ld
Dave Lee [Mon, 6 Nov 2017 21:18:05 +0000 (21:18 +0000)]
Vary Windows toolchain selection by -fuse-ld

Summary:
This change allows binutils to be used for linking with MSVC. Currently, when
using an MSVC target and `-fuse-ld=bfd`, the driver produces an invalid linker
invocation.

Reviewers: rnk, compnerd

Reviewed By: compnerd

Subscribers: smeenai, cfe-commits

Differential Revision: https://reviews.llvm.org/D39509

llvm-svn: 317511

6 years ago[InstCombine] Pull shifts through a select plus binop with constant
Craig Topper [Mon, 6 Nov 2017 21:07:22 +0000 (21:07 +0000)]
[InstCombine] Pull shifts through a select plus binop with constant

This pulls shifts through a select+binop with a constant where the select conditionally executes the binop. We already do this for just the binop, but not with the select.

This can allow us to get the select closer to other selects to enable removing one.

Differential Revision: https://reviews.llvm.org/D39222

llvm-svn: 317510

6 years agoupdate_mir_test_checks: Be careful about replacing entire vregs
Justin Bogner [Mon, 6 Nov 2017 21:06:09 +0000 (21:06 +0000)]
update_mir_test_checks: Be careful about replacing entire vregs

Previously, this could end up replacing a vreg like %14 with
[[VREG1]]4, where VREG1 was the match for %1. That's obviously not
correct, though it hasn't actually come up in any tests I've converted
so far.

llvm-svn: 317509

6 years agoFix buildbot breakages from r317503. Add parentheses to assignment when using result...
Graham Yiu [Mon, 6 Nov 2017 21:04:19 +0000 (21:04 +0000)]
Fix buildbot breakages from r317503.  Add parentheses to assignment when using result as a condition.

llvm-svn: 317508

6 years ago[X86] Replace the mask cmpeq/cmple/cmplt/cmpgt/cmpge/cmpneq intrinsics with macros...
Craig Topper [Mon, 6 Nov 2017 21:00:49 +0000 (21:00 +0000)]
[X86] Replace the mask cmpeq/cmple/cmplt/cmpgt/cmpge/cmpneq intrinsics with macros that just pass the right comparison predicate value to the regular cmp intrinsic. Remove mask cmpeq/cmpgt builtins that are now unused.

This shortens the intrinsic headers a little and allows us to get rid of the cmpeq and cmpgt handling from CGBuiltin.cpp.

llvm-svn: 317506

6 years ago[MinGW] Don't autoexport anything from libmsvcrt or libucrtbase
Martin Storsjo [Mon, 6 Nov 2017 20:33:13 +0000 (20:33 +0000)]
[MinGW] Don't autoexport anything from libmsvcrt or libucrtbase

These libraries contain a number of object files with compat wrappers,
in addition to the normal import library entries.

Differential Revision: https://reviews.llvm.org/D39684

llvm-svn: 317505

6 years ago[X86] Add 3dnow and 3dnowa to the list of valid target features
Martin Storsjo [Mon, 6 Nov 2017 20:33:13 +0000 (20:33 +0000)]
[X86] Add 3dnow and 3dnowa to the list of valid target features

These were missed in SVN r316783, which broke compiling mingw-w64 CRT.

Differential Revision: https://reviews.llvm.org/D39631

llvm-svn: 317504

6 years agoAdds code to PPC ISEL lowering to recognize byte inserts from vector_shuffles, and...
Graham Yiu [Mon, 6 Nov 2017 20:18:30 +0000 (20:18 +0000)]
Adds code to PPC ISEL lowering to recognize byte inserts from vector_shuffles, and use P9 shift and vector insert byte instructions instead of vperm. Extends tests from vector insert half-word.

Differential Revision: https://reviews.llvm.org/D34497

llvm-svn: 317503

6 years agoInclude already promoted counts when computing SUM for VP.
Dehao Chen [Mon, 6 Nov 2017 19:52:49 +0000 (19:52 +0000)]
Include already promoted counts when computing SUM for VP.

Summary: When computing the SUM for indirect call promotion, if the callsite is already promoted in the profile, it will be promoted before ICP. In the current implementation, ICP only sees remaining counts in SUM. This may cause extra indirect call targets being promoted. This patch updates the SUM to include the counts already promoted earlier. This way we do not end up promoting too many indirect call targets.

Reviewers: tejohnson

Reviewed By: tejohnson

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D38763

llvm-svn: 317502

6 years agoAdd a dependency from check-lldb on lld
Stephane Sezer [Mon, 6 Nov 2017 19:25:33 +0000 (19:25 +0000)]
Add a dependency from check-lldb on lld

Summary:
This is required when using the in-tree clang for building tests,
because -fuse-ld=lld is used by default.

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D39689

llvm-svn: 317501

6 years ago[cfi-verify] Added a simple check that stops division-by-zero error when no indirect...
Mitch Phillips [Mon, 6 Nov 2017 19:14:09 +0000 (19:14 +0000)]
[cfi-verify] Added a simple check that stops division-by-zero error when no indirect CF instructions are found in the provided file.

llvm-svn: 317500

6 years ago[PPC] Use xxbrd to speed up bswap64
Guozhi Wei [Mon, 6 Nov 2017 19:09:38 +0000 (19:09 +0000)]
[PPC] Use xxbrd to speed up bswap64

Power doesn't have bswap instructions, so llvm generates following code sequence for bswap64.

  rotldi   5, 3, 16
  rotldi   4, 3, 8
  rotldi   9, 3, 24
  rotldi   10, 3, 32
  rotldi   11, 3, 48
  rotldi   12, 3, 56
  rldimi 4, 5, 8, 48
  rldimi 4, 9, 16, 40
  rldimi 4, 10, 24, 32
  rldimi 4, 11, 40, 16
  rldimi 4, 12, 48, 8
  rldimi 4, 3, 56, 0

But Power9 has vector bswap instructions, they can also be used to speed up scalar bswap intrinsic. With this patch, bswap64 can be translated to:

  mtvsrdd 34, 3, 3
  xxbrd 34, 34
  mfvsrld 3, 34

Differential Revision: https://reviews.llvm.org/D39510

llvm-svn: 317499

6 years agoMake MCAsmBackend and MCCodeEmiiter passed by unique_ptr rval
Mitch Phillips [Mon, 6 Nov 2017 18:56:36 +0000 (18:56 +0000)]
Make MCAsmBackend and MCCodeEmiiter passed by unique_ptr rval

Summary: Fixes build breakage of llvm-mc-assemble-fuzzer introduced by rL315531.

Reviewers: lhames

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39268

llvm-svn: 317498

6 years ago[ForwardOpTree] Limit isl operations of known content reload.
Michael Kruse [Mon, 6 Nov 2017 17:48:14 +0000 (17:48 +0000)]
[ForwardOpTree] Limit isl operations of known content reload.

Put the analysis part of reloadKnownContent under an isl
max-operations quota scope, as has already been done for
forwardKnownLoad.

This should fix the aosp timeout of "GrTestUtils.cpp".

llvm-svn: 317495

6 years ago[Sanitizers] Check pthread_setcancel{state|type} interceptor arguments for != nullptr.
Alex Shlyapnikov [Mon, 6 Nov 2017 17:43:28 +0000 (17:43 +0000)]
[Sanitizers] Check pthread_setcancel{state|type} interceptor arguments for != nullptr.

Summary:
According to man, pthread_setcancelstate's oldstate and
pthread_setcanceltype's oldtype parameters can be nullptr.
Check these parameters for != nullptr before attempting to
access their shadow memory.

Reviewers: dvyukov

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D39626

llvm-svn: 317494

6 years ago[Parser] Fix TryParseLambdaIntroducer() error handling
Jan Korous [Mon, 6 Nov 2017 17:42:17 +0000 (17:42 +0000)]
[Parser] Fix TryParseLambdaIntroducer() error handling

rdar://35066196

Differential Revision: https://reviews.llvm.org/D39419

llvm-svn: 317493

6 years agoAMDGPU: Select v_mad_u64_u32 and v_mad_i64_i32
Matt Arsenault [Mon, 6 Nov 2017 17:04:37 +0000 (17:04 +0000)]
AMDGPU: Select v_mad_u64_u32 and v_mad_i64_i32

llvm-svn: 317492

6 years ago[Analysis] update to use new fast-math API - isFast()
Sanjay Patel [Mon, 6 Nov 2017 16:52:31 +0000 (16:52 +0000)]
[Analysis] update to use new fast-math API - isFast()

llvm-svn: 317491

6 years agoCanonicalize spelling of long-form-options in dsymutil.rst
Adrian Prantl [Mon, 6 Nov 2017 16:52:05 +0000 (16:52 +0000)]
Canonicalize spelling of long-form-options in dsymutil.rst

llvm-svn: 317490

6 years ago[CodeGen] match new fast-math-flag method: isFast()
Sanjay Patel [Mon, 6 Nov 2017 16:27:36 +0000 (16:27 +0000)]
[CodeGen] match new fast-math-flag method: isFast()

This corresponds to LLVM commiti r317488:

If that commit is reverted, this commit will also need to be reverted.

llvm-svn: 317489

6 years ago[IR] redefine 'UnsafeAlgebra' / 'reassoc' fast-math-flags and add 'trans' fast-math...
Sanjay Patel [Mon, 6 Nov 2017 16:27:15 +0000 (16:27 +0000)]
[IR] redefine 'UnsafeAlgebra' / 'reassoc' fast-math-flags and add 'trans' fast-math-flag

As discussed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-November/107104.html
and again more recently:
http://lists.llvm.org/pipermail/llvm-dev/2017-October/118118.html

...this is a step in cleaning up our fast-math-flags implementation in IR to better match
the capabilities of both clang's user-visible flags and the backend's flags for SDNode.

As proposed in the above threads, we're replacing the 'UnsafeAlgebra' bit (which had the
'umbrella' meaning that all flags are set) with a new bit that only applies to algebraic
reassociation - 'AllowReassoc'.

We're also adding a bit to allow approximations for library functions called 'ApproxFunc'
(this was initially proposed as 'libm' or similar).

...and we're out of bits. 7 bits ought to be enough for anyone, right? :) FWIW, I did
look at getting this out of SubclassOptionalData via SubclassData (spacious 16-bits),
but that's apparently already used for other purposes. Also, I don't think we can just
add a field to FPMathOperator because Operator is not intended to be instantiated.
We'll defer movement of FMF to another day.

We keep the 'fast' keyword. I thought about removing that, but seeing IR like this:
%f.fast = fadd reassoc nnan ninf nsz arcp contract afn float %op1, %op2
...made me think we want to keep the shortcut synonym.

Finally, this change is binary incompatible with existing IR as seen in the
compatibility tests. This statement:
"Newer releases can ignore features from older releases, but they cannot miscompile
them. For example, if nsw is ever replaced with something else, dropping it would be
a valid way to upgrade the IR."
( http://llvm.org/docs/DeveloperPolicy.html#ir-backwards-compatibility )
...provides the flexibility we want to make this change without requiring a new IR
version. Ie, we're not loosening the FP strictness of existing IR. At worst, we will
fail to optimize some previously 'fast' code because it's no longer recognized as
'fast'. This should get fixed as we audit/squash all of the uses of 'isFast()'.

Note: an inter-dependent clang commit to use the new API name should closely follow
commit.

Differential Revision: https://reviews.llvm.org/D39304

llvm-svn: 317488

6 years ago[clangd] Squash namespace warning
Sam McCall [Mon, 6 Nov 2017 15:50:35 +0000 (15:50 +0000)]
[clangd] Squash namespace warning

llvm-svn: 317487

6 years agoAdds a json::Expr type to represent intermediate JSON expressions.
Sam McCall [Mon, 6 Nov 2017 15:40:30 +0000 (15:40 +0000)]
Adds a json::Expr type to represent intermediate JSON expressions.

Summary:
This form can be created with a nice clang-format-friendly literal syntax,
and gets escaping right. It knows how to call unparse() on our Protocol types.
All the places where we pass around JSON internally now use this type.

Object properties are sorted (stored as std::map) and so serialization is
canonicalized, with optional prettyprinting (triggered by a -pretty flag).
This makes the lit tests much nicer to read and somewhat nicer to debug.
(Unfortunately the completion tests use CHECK-DAG, which only has
line-granularity, so pretty-printing is disabled there. In future we
could make completion ordering deterministic, or switch to unittests).

Compared to the current approach, it has some efficiencies like avoiding copies
of string literals used as object keys, but is probably slower overall.
I think the code/test quality benefits are worth it.

This patch doesn't attempt to do anything about JSON *parsing*.
It takes direction from the proposal in this doc[1], but is limited in scope
and visibility, for now.
I am of half a mind just to use Expr as the target of a parser, and maybe do a
little string deduplication, but not bother with clever memory allocation.
That would be simple, and fast enough for clangd...
[1] https://docs.google.com/document/d/1OEF9IauWwNuSigZzvvbjc1cVS1uGHRyGTXaoy3DjqM4/edit

+cc d0k so he can tell me not to use std::map.

Reviewers: ioeric, malaperle

Subscribers: bkramer, ilya-biryukov, mgorny, klimek

Differential Revision: https://reviews.llvm.org/D39435

llvm-svn: 317486

6 years ago[X86][SSE] Merge combineExtractVectorElt_SSE into combineExtractVectorElt. NFCI.
Simon Pilgrim [Mon, 6 Nov 2017 15:28:25 +0000 (15:28 +0000)]
[X86][SSE] Merge combineExtractVectorElt_SSE into combineExtractVectorElt. NFCI.

We still early-out for X86ISD::PEXTRW/X86ISD::PEXTRB so no actual change in behaviour, but it'll make it easier to add support in a future patch.

llvm-svn: 317485

6 years ago[OMPT] Fix callback.h for tests for changes in TR6
Jonas Hahnfeld [Mon, 6 Nov 2017 15:13:06 +0000 (15:13 +0000)]
[OMPT] Fix callback.h for tests for changes in TR6

This was also lost in the last commit.

llvm-svn: 317484

6 years ago[SLP] Test for PR35047, NFC.
Alexey Bataev [Mon, 6 Nov 2017 14:52:57 +0000 (14:52 +0000)]
[SLP] Test for PR35047, NFC.

llvm-svn: 317482

6 years ago[X86][SSE] Combine EXTRACT_VECTOR_ELT with combineExtractWithShuffle before XFormVExt...
Simon Pilgrim [Mon, 6 Nov 2017 14:34:19 +0000 (14:34 +0000)]
[X86][SSE] Combine EXTRACT_VECTOR_ELT with combineExtractWithShuffle before XFormVExtractWithShuffleIntoLoad

combineExtractWithShuffle can handle more complex shuffles/bitcasts than we can with the equivalent code in XFormVExtractWithShuffleIntoLoad.

Mainly a compile time improvement now (combineExtractWithShuffle combines will have always failed late on inside XFormVExtractWithShuffleIntoLoad), and will let us merge combineExtractVectorElt_SSE in a future commit.

llvm-svn: 317481

6 years ago[OMPT] Improve cast that was lost on commit, NFC.
Jonas Hahnfeld [Mon, 6 Nov 2017 14:33:09 +0000 (14:33 +0000)]
[OMPT] Improve cast that was lost on commit, NFC.

llvm-svn: 317480

6 years ago[AMDGPU] Change alloca addr space of r600 to 5 for amdgiz environment
Yaxun Liu [Mon, 6 Nov 2017 14:32:33 +0000 (14:32 +0000)]
[AMDGPU] Change alloca addr space of r600 to 5 for amdgiz environment

Differential Revision: https://reviews.llvm.org/D39657

llvm-svn: 317479

6 years ago[Polly] Fix using order, as this caused a test failure (NFC)
Florian Hahn [Mon, 6 Nov 2017 14:26:04 +0000 (14:26 +0000)]
[Polly] Fix using order, as this caused a test failure (NFC)

Summary:
Without this patch, clang-format in check-polly fails for me, with current master:

```
FAILED: cd build/tools/polly && build/bin/clang-format -sort-includes -style=llvm llvm/tools/polly/include/polly/ScopPass.h | diff -u llvm/tools/polly/include/polly/ScopPass.h -
--- llvm/tools/polly/include/polly/ScopPass.h 2017-11-06 14:05:49.885345000 +0000
+++ - 2017-11-06 14:07:24.956241758 +0000
@@ -40,12 +40,12 @@
 } // namespace polly

 namespace llvm {
+using polly::SPMUpdater;
 using polly::Scop;
 using polly::ScopAnalysisManager;
 using polly::ScopAnalysisManagerFunctionProxy;
 using polly::ScopInfo;
 using polly::ScopStandardAnalysisResults;
-using polly::SPMUpdater;

 template <>
 class InnerAnalysisManagerProxy<ScopAnalysisManager, Function>::Result {
```

Reviewers: grosser, Meinersbur, bollu

Reviewed By: Meinersbur

Subscribers: llvm-commits, pollydev

Differential Revision: https://reviews.llvm.org/D39683

llvm-svn: 317478

6 years ago[SystemZ] implement hasDivRemOp()
Jonas Paulsson [Mon, 6 Nov 2017 13:10:31 +0000 (13:10 +0000)]
[SystemZ]  implement hasDivRemOp()

SystemZ can do division and remainder in a single instruction for scalar
integer types, which are now reflected by returning true in this hook for
those cases.

Review: Ulrich Weigand
llvm-svn: 317477

6 years ago[AMDGPU] Fix assertion due to assuming pointer in default addr space is 32 bit
Yaxun Liu [Mon, 6 Nov 2017 13:01:33 +0000 (13:01 +0000)]
[AMDGPU] Fix assertion due to assuming pointer in default addr space is 32 bit

The backend assumes pointer in default addr space is 32 bit, which is not
true for the new addr space mapping and causes assertion for unresolved
functions.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D39643

llvm-svn: 317476

6 years ago[mips] Add movep for microMIPS32R6 and fix microMIPS32r3 version
Simon Dardis [Mon, 6 Nov 2017 12:59:53 +0000 (12:59 +0000)]
[mips] Add movep for microMIPS32R6 and fix microMIPS32r3 version

Previously, the 'movep' instruction was defined for microMIPS32r3 and
shared that definition with microMIPS32R6. 'movep' was re-encoded for
microMIPS32r6, so this patch provides the correct encoding.

Secondly, correct the encoding of the 'rs' and 'rt' operands which have
an instruction specific encoding for the registers those operands accept.

Finally, correct the decoding of the 'dst_regs' operand which was extracting
the relevant field from the instruction, but was actually extracting the
field from the alreadly extracted field.

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D39495

llvm-svn: 317475

6 years agoExtend android xfail in TestTopLevelExprs
Pavel Labath [Mon, 6 Nov 2017 12:34:27 +0000 (12:34 +0000)]
Extend android xfail in TestTopLevelExprs

The test fails on API level 19 as well. I'm going to assume that it
fails on every API level below 23.

llvm-svn: 317474

6 years ago[clang-format] Handle unary operator overload with arguments and specifiers
Daniel Jasper [Mon, 6 Nov 2017 12:11:51 +0000 (12:11 +0000)]
[clang-format] Handle unary operator overload with arguments and specifiers

Before:
  int operator++(int)noexcept;

After:
  int operator++(int) noexcept;

Patch by Igor Sugak. Thank you!

llvm-svn: 317473

6 years ago[docs] Update code block for compatibility with Sphinx 1.5.1
Jonas Devlieghere [Mon, 6 Nov 2017 11:47:24 +0000 (11:47 +0000)]
[docs] Update code block for compatibility with Sphinx 1.5.1

It is currently not possible to build the documentation with cmake and
the same version of Sphinx (1.5.1) used to generate the public facing
documentation on llvm.org. When code blocks cannot be parsed by
Pygments, it generates a warning which is treated as an error.

In addition to being annoying and confusing for developers, this
needlessly increases the bar for newcomers that want to get involved.

This patch removes the language specifier from the affected block. The
result is the same as when parsing fails: the block are not highlighted.

llvm-svn: 317472

6 years ago[LV][X86] update the cost of interleaving mem. access of floats
Mohammed Agabaria [Mon, 6 Nov 2017 10:56:20 +0000 (10:56 +0000)]
[LV][X86] update the cost of interleaving mem. access of floats

Recommit:
This patch contains update of the costs of interleaved loads of v8f32 of stride 3 and 8.
fixed the location of the lit test it works with make check-all.

Differential Revision: https://reviews.llvm.org/D39403

llvm-svn: 317471

6 years ago[mips] Fix PR35140
Simon Dardis [Mon, 6 Nov 2017 10:50:04 +0000 (10:50 +0000)]
[mips] Fix PR35140

Mark all symbols involved with TLS relocations as being TLS symbols.

This resolves PR35140.

Thanks to Alex Crichton for reporting the issue!

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D39591

llvm-svn: 317470

6 years ago[ELF] Fix typo in comment for getISDThunkSec [NFC]
Peter Smith [Mon, 6 Nov 2017 10:36:18 +0000 (10:36 +0000)]
[ELF] Fix typo in comment for getISDThunkSec [NFC]

The ISR in the comment should read ISD for InputSectionDescription. The use
of ISR (InputSectionRange) was from the original implementation that did not
use the sections from InputSectionDescription directly.

llvm-svn: 317469

6 years ago[clang-tidy] Support relative paths in run-clang-tidy.py
Gabor Horvath [Mon, 6 Nov 2017 10:36:02 +0000 (10:36 +0000)]
[clang-tidy] Support relative paths in run-clang-tidy.py

Unfortunately, these python scripts are not tested currently. I did the testing
manually on LLVM by editing the CMake generated compilation database to
contain relative paths for some of the files.

Differential Revision: https://reviews.llvm.org/D39603

llvm-svn: 317468

6 years agoFixed dead links in WritingAnLLVMPass.rst
Raphael Isemann [Mon, 6 Nov 2017 09:51:39 +0000 (09:51 +0000)]
Fixed dead links in WritingAnLLVMPass.rst

llvm-svn: 317467

6 years ago[Tooling] Test internal::createExecutorFromCommandLineArgsImpl instead of the wrapper.
Eric Liu [Mon, 6 Nov 2017 09:29:09 +0000 (09:29 +0000)]
[Tooling] Test internal::createExecutorFromCommandLineArgsImpl instead of the wrapper.

llvm-svn: 317466

6 years ago[X86][AVX512] Improve lowering of AVX512 test intrinsics
Uriel Korach [Mon, 6 Nov 2017 09:22:38 +0000 (09:22 +0000)]
[X86][AVX512] Improve lowering of AVX512 test intrinsics

Added TESTM and TESTNM to the list of instructions that already zeroing unused upper bits
and does not need the redundant shift left and shift right instructions afterwards.
Added a pattern for TESTM and TESTNM in iselLowering, so now icmp(neq,and(X,Y), 0) goes folds into TESTM
and icmp(eq,and(X,Y), 0) goes folds into TESTNM
This commit is a preparation for lowering the test and testn X86 intrinsics to IR.

Differential Revision: https://reviews.llvm.org/D38732

llvm-svn: 317465

6 years ago[X86] Replace duplicate function call with variable. NFC
Uriel Korach [Mon, 6 Nov 2017 08:32:45 +0000 (08:32 +0000)]
[X86] Replace duplicate function call with variable. NFC

Change from:
if (N->getOperand(0).getValueType() == MVT::v8i32 ||
    N->getOperand(0).getValueType() == MVT::v8f32)

to:
EVT OpVT = N->getOperand(0).getValueType();
if (OpVT == MVT::v8i32 || OpVT == MVT::v8f32)

Change-Id: I5a105f8710b73a828e6cfcd55fac2eae6153ce25
llvm-svn: 317464

6 years agoX86 ISel: Basic support for variable-index vector permutations
Zvi Rackover [Mon, 6 Nov 2017 08:25:46 +0000 (08:25 +0000)]
X86 ISel: Basic support for variable-index vector permutations

Summary:
Try to lower a BUILD_VECTOR composed of extract-extract chains that can be
reasoned to be a permutation of a vector by indices in a non-constant vector.

We saw this pattern created by ISPC, which resolts to creating it due to the
requirement that shufflevector's mask operand be a *constant* vector.
I didn't check this but we could possibly use this pattern for lowering the X86 permute
C-instrinsics instead of llvm.x86 instrinsics.

This change can be followed by more improvements:
1. Handle vectors with undef elements.
2. Utilize pshufb and zero-mask-blending to support more effiecient
   construction of vectors with constant-0 elements.
3. Use smaller-element vectors of same width, and "interpolate" the indices,
   when no native operation available.

Reviewers: RKSimon, craig.topper

Reviewed By: RKSimon

Subscribers: chandlerc, DavidKreitzer

Differential Revision: https://reviews.llvm.org/D39126

llvm-svn: 317463

6 years agoRevert "adding a pattern for broadcastm"
Jina Nahias [Mon, 6 Nov 2017 07:48:58 +0000 (07:48 +0000)]
Revert "adding a pattern for broadcastm"

This reverts commit r317457.

Change-Id: If07f1fca1e3453d16c1dac906e87768661384e91
llvm-svn: 317462

6 years ago[test] Add test files that were missed from SVN r317459
Martin Storsjo [Mon, 6 Nov 2017 07:36:17 +0000 (07:36 +0000)]
[test] Add test files that were missed from SVN r317459

llvm-svn: 317461

6 years agoUpdate tests for ARMNT/ARM64 reloc names
Martin Storsjo [Mon, 6 Nov 2017 07:22:17 +0000 (07:22 +0000)]
Update tests for ARMNT/ARM64 reloc names

After ObjectYAML learnt the proper enum names for ARMNT/ARM64
relocations, it no longer accepts the numerical values.

This fixes LLD tests after SVN r317459 in LLVM.

llvm-svn: 317460

6 years ago[ObjectYAML] Map relocation types for COFF ARMNT and ARM64
Martin Storsjo [Mon, 6 Nov 2017 07:20:58 +0000 (07:20 +0000)]
[ObjectYAML] Map relocation types for COFF ARMNT and ARM64

Differential Revision: https://reviews.llvm.org/D39668

llvm-svn: 317459

6 years ago[x86][AVX512] Lowering Broadcastm intrinsics to LLVM IR
Jina Nahias [Mon, 6 Nov 2017 07:09:24 +0000 (07:09 +0000)]
[x86][AVX512] Lowering Broadcastm intrinsics to LLVM IR

This patch, together with a matching clang patch (https://reviews.llvm.org/D38683), implements the lowering of X86 broadcastm intrinsics to IR.

Differential Revision: https://reviews.llvm.org/D38684

Change-Id: I709ac0b34641095397e994c8ff7e15d1315b3540
llvm-svn: 317458

6 years agoadding a pattern for broadcastm
Jina Nahias [Mon, 6 Nov 2017 07:09:09 +0000 (07:09 +0000)]
adding a pattern for broadcastm

Change-Id: I6551fb13879e098aed74de410e29815cf37d9ab5
llvm-svn: 317457

6 years agolowering broadcastm
Jina Nahias [Mon, 6 Nov 2017 07:04:12 +0000 (07:04 +0000)]
lowering broadcastm

Change-Id: I0661abea3e3742860e0a03ff9e4fcdc367eff7db
llvm-svn: 317456

6 years ago[COFF] Handle ARM64 in getDefaultType
Martin Storsjo [Mon, 6 Nov 2017 07:02:33 +0000 (07:02 +0000)]
[COFF] Handle ARM64 in getDefaultType

Differential Revision: https://reviews.llvm.org/D39634

llvm-svn: 317455

6 years ago[X86] Use EVEX encoded intrinsics for legacy FMA intrinsics when possible.
Craig Topper [Mon, 6 Nov 2017 05:48:26 +0000 (05:48 +0000)]
[X86] Use EVEX encoded intrinsics for legacy FMA intrinsics when possible.

llvm-svn: 317454

6 years ago[X86] Add scalar FMA ISD nodes without rounding mode. NFC
Craig Topper [Mon, 6 Nov 2017 05:48:25 +0000 (05:48 +0000)]
[X86] Add scalar FMA ISD nodes without rounding mode. NFC

Next step is to use them for the legacy FMA scalar intrinsics as well. This will enable the legacy intrinsics to use EVEX encoded opcodes and the extended registers.

llvm-svn: 317453

6 years ago[X86] Add avx512vl command line to fma-instrinsics-x86.ll
Craig Topper [Mon, 6 Nov 2017 05:48:24 +0000 (05:48 +0000)]
[X86] Add avx512vl command line to fma-instrinsics-x86.ll

Some of these demonstrate a missed EVEX to VEX compression because we aren't prefering EVEX instructions during isel.

llvm-svn: 317452

6 years ago[X86] Simplify command lines on the fma-instrinsics-x86.ll test and add -show-mc...
Craig Topper [Mon, 6 Nov 2017 05:48:23 +0000 (05:48 +0000)]
[X86] Simplify command lines on the fma-instrinsics-x86.ll test and add -show-mc-encoding.

Use feature names instead of CPU names.

A future commit will add avx512vl command lines to demonstrate missed use of EVEX instructions.

llvm-svn: 317451

6 years agoELF: Remove SymbolTable::SymIndex class.
Peter Collingbourne [Mon, 6 Nov 2017 04:58:04 +0000 (04:58 +0000)]
ELF: Remove SymbolTable::SymIndex class.

The Traced flag is unnecessary because we only need to set the index
to -1 to mark a symbol for tracing.

Differential Revision: https://reviews.llvm.org/D39672

llvm-svn: 317450

6 years agoELF: Remove function Symbol::isInCurrentOutput().
Peter Collingbourne [Mon, 6 Nov 2017 04:39:07 +0000 (04:39 +0000)]
ELF: Remove function Symbol::isInCurrentOutput().

This function is now equivalent to isDefined().

llvm-svn: 317449