Commit Graph

48026 Commits

Author SHA1 Message Date
Simon Pilgrim 73f143e774 [X86][SSE] Improve shuffling combining with horizontal operations
Recognise cases when we can merge the shuffles with their horizontal (HADD/HSUB/PACK) instruction inputs.

Replaces an older implementation which performed some of this during lowering, expanding an existing target shuffle combine stage instead.

Differential Revision: https://reviews.llvm.org/D38506

llvm-svn: 315150
2017-10-07 12:42:23 +00:00
Jessica Paquette 13593843f6 [MachineOutliner] Disable outlining from LinkOnceODRs by default
Say you have two identical linkonceodr functions, one in M1 and one in M2.
Say that the outliner outlines A,B,C from one function, and D,E,F from another
function (where letters are instructions). Now those functions are not
identical, and cannot be deduped. Locally to M1 and M2, these outlining
choices would be good-- to the whole program, however, this might not be true!

To mitigate this, this commit makes it so that the outliner sees linkonceodr
functions as unsafe to outline from. It also adds a flag,
-enable-linkonceodr-outlining, which allows the user to specify that they
want to outline from such functions when they know what they're doing.

Changing this handles most code size regressions in the test suite caused by
competing with linker dedupe. It also doesn't have a huge impact on the code
size improvements from the outliner. There are 6 tests that regress > 5% from
outlining WITH linkonceodrs to outlining WITHOUT linkonceodrs. Overall, most
tests either improve or are not impacted.

Not outlined vs outlined without linkonceodrs:
https://hastebin.com/raw/qeguxavuda

Not outlined vs outlined with linkonceodrs:
https://hastebin.com/raw/edepoqoqic

Outlined with linkonceodrs vs outlined without linkonceodrs:
https://hastebin.com/raw/awiqifiheb

Numbers generated using compare.py with -m size.__text. Tests run for AArch64
with -Oz -mllvm -enable-machine-outliner -mno-red-zone.

llvm-svn: 315136
2017-10-07 00:16:34 +00:00
Sanjay Patel 72d339abb7 [InstCombine] use correct type when propagating constant condition in simplifyDivRemOfSelectWithZeroOp (PR34856)
llvm-svn: 315130
2017-10-06 23:43:06 +00:00
Cameron McInally 9d64101fe8 [AVX512] Fix TERNLOG when folding broadcast
Patch to fix ternlog instructions with a folded
broadcast. The broadcast decorator, e.g. {1toX}, was missing.

Differential Revision: https://reviews.llvm.org/D38649

llvm-svn: 315122
2017-10-06 22:31:29 +00:00
Jonas Devlieghere f2fa9ebe3f [dwarfdump] Verify that unit type matches root DIE
This patch adds two new verifiers:

  - It checks that the root DIE of a CU is actually a valid unit DIE.
    (based on its tag)
  - For DWARF5 which contains a unit type int he CU header, it checks that
    this matches the type of the unit DIE.

Differential revision: https://reviews.llvm.org/D38453

llvm-svn: 315121
2017-10-06 22:27:31 +00:00
Zachary Turner a92eb33ad5 [llvm-rc] Implement escape sequences in .rc files.
This allows the escape sequences (\a, \n, \r, \t, \\, \x[0-9a-f]*,
\[0-7]*, "") to appear in .rc scripts. These are parsed and output in
the same way as it's done in original MS implementation.

The way these sequences are processed depends on the type of the
resource it resides in, and on whether the user declared the string to
be "wide" or "narrow".

I tried to maintain the maximum compatibility with the original tool
(and fail in some erroneous situations that are accepted by .rc).
However, there are some (extremely rare) cases where Microsoft tool
outputs nonsense. I found it infeasible to detect such casses.

Patch by Marek Sokolowski

Differential Revision: https://reviews.llvm.org/D38426

llvm-svn: 315118
2017-10-06 22:05:15 +00:00
Zachary Turner 9d8b358a49 [llvm-rc] Serialize user-defined resources to .res files.
This allows rc to serialize user-defined resources, as
documented at:

msdn.microsoft.com/en-us/library/windows/desktop/aa381054.aspx

Escape sequences are yet unavailable, and are to be added in one of
child patches.

Patch by: Marek Sokolowski

Differential Revision: https://reviews.llvm.org/D38423

llvm-svn: 315117
2017-10-06 21:52:15 +00:00
Zachary Turner da366693bf [llvm-rc] Serialize STRINGTABLE statements to .res file.
This allows llvm-rc to serialize STRINGTABLE resources.

These are output in an unusual way: we locate them at the end of the
file, and strings are merged into bundles of max 16 strings, depending
on their IDs, language, and characteristics.

Ref: msdn.microsoft.com/en-us/library/windows/desktop/aa381050.aspx

Patch by: Marek Sokolowski
Differential Revision: https://reviews.llvm.org/D38420

llvm-svn: 315112
2017-10-06 21:30:55 +00:00
Zachary Turner 07bc04ff38 [llvm-rc] Serialize VERSIONINFO resources to .res files.
This is now able to dump VERSIONINFO resources.

Ref: msdn.microsoft.com/en-us/library/windows/desktop/aa381058.aspx

Differential Revision: https://reviews.llvm.org/D38410
Patch by: Marek Sokolowski

llvm-svn: 315110
2017-10-06 21:26:06 +00:00
Zachary Turner c3ab013aa1 [llvm-rc] Serialize CURSOR and ICON resources to .res
This is part 6 of llvm-rc serialization.

This adds ability to output cursors and icons as resources.

Unfortunately, we can't just copy .cur or .ico files to output - as each
file might contain multiple images, each of them needs to be unpacked
and stored as a separate resource. This forces us to parse cursor and
icon contents. (Fortunately, these formats are pretty similar and can be
processed by mostly common code).

As test files are binary, here is a short explanation of .cur and .ico
files stored:

cursor.cur, cursor-8.cur, cursor-32.cur are sample correct cursor files,
differing in their bit depth.

icon-old.ico, icon-new.ico are sample correct icon files;

icon-png.ico is a sample correct icon file in PNG format (instead of
usual BMP);

cursor-eof.cur is an incorrect cursor file - this is cursor.cur with
some of its final bytes removed.

cursor-bad-offset.cur is an incorrect cursor file - image header states
that image data begins at offset 0xFFFFFFFF.

Sample correct cursors and icons were created by Nico Weber.

Patch by Marek Sokolowski
Differential Revision: https://reviews.llvm.org/D37878

llvm-svn: 315109
2017-10-06 21:25:44 +00:00
Reid Kleckner b6b210e61f Revert "Roll forward r314928"
This appears to be miscompiling Clang, as shown on two Windows bootstrap
bots:
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/7611
http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/6870

Nothing else is in the blame list. Both emit errors on this valid code
in the Windows ucrt headers:

C:\...\ucrt\malloc.h:95:32: error: invalid operands to binary expression ('char *' and 'int')
            _Ptr = (char*)_Ptr + _ALLOCA_S_MARKER_SIZE;
                   ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~

I am attempting to reproduce this now.

This reverts r315044

llvm-svn: 315108
2017-10-06 21:17:51 +00:00
Zachary Turner 420090af89 [llvm-rc] Add optional serialization support for DIALOG(EX) resources.
This is part 5 of llvm-rc serialization support.

This allows DIALOG and DIALOGEX to serialize if dialog-specific optional
statements are provided. These are (as of now): CAPTION, FONT, and
STYLE.

Notably, FONT statement can take more than two arguments when describing
DIALOGEX resources (as in
msdn.microsoft.com/en-us/library/windows/desktop/aa381013.aspx). I made
some changes to the parser to reflect this fact.

Patch by Marek Sokolowski
Differential Revision: https://reviews.llvm.org/D37864

llvm-svn: 315104
2017-10-06 20:51:20 +00:00
Adrian Prantl 59f30b8874 llvm-dwarfdump: Add an option to collect debug info quality metrics.
At the last LLVM dev meeting we had a debug info for optimized code
BoF session. In that session I presented some graphs that showed how
the quality of the debug info produced by LLVM changed over the last
couple of years. This is a cleaned up version of the patch I used to
collect the this data. It is implemented as an extension of
llvm-dwarfdump, adding a new --statistics option. The intended
use-case is to automatically run this on the debug info produced by,
e.g., our bots, to identify eyebrow-raising changes or regressions
introduced by new transformations that we could act on.

In the current form, two kinds of data are being collected:

- The number of variables that have a debug location versus the number
  of variables in total (this takes into account inlined instances of
  the same function, so if a variable is completely missing form only
  one instance it will be found).

- The PC range covered by variable location descriptions versus the PC
  range of all variables' containing lexical scopes.

The output format is versioned and extensible, so I'm looking forward
to both bug fixes and ideas for other data that would be interesting
to track.

Differential Revision: https://reviews.llvm.org/D36627

llvm-svn: 315101
2017-10-06 20:24:34 +00:00
Amara Emerson ba0f79af92 [GlobalISel] Fix legalizer trying to process a deleted instruction.
In some cases an instruction is deleted from the block during combining,
however it can still exist in the legalizer worklist.

This change modifies the combiner routines to add the given MI to the
dead instruction list rather than trying to remove it from the block
themselves. The responsibility is then on the caller to delete the instruction
from the block and any worklists.

Differential Revision: https://reviews.llvm.org/D38622

llvm-svn: 315092
2017-10-06 19:24:15 +00:00
Francis Ricci 85255eda91 Revert "[dsymutil] Emit valid debug locations when no symbol flags are set"
This reverts commit r315082, which fails on non-darwin buildbots.

llvm-svn: 315088
2017-10-06 18:19:52 +00:00
Saleem Abdulrasool 46a59fdab6 Bitcode: add an auto-upgrade for LTO section name
The bitcode reader looks specifically for `__DATA, __objc_catlist` as a
section name.  However, SVN r304661 removed the spaces (the two names
are functionally equivalent but do not compare equally
lexicographically).  This causes compatibility issues.  Add an
auto-upgrade path for removing the spaces as well as use the new name in
the LTO plugin.

llvm-svn: 315086
2017-10-06 18:06:59 +00:00
Zachary Turner 96b04b68ed [lit] Improve tool substitution in lit.
This addresses two sources of inconsistency in test configuration
files.

1. Substitution boundaries.  Previously you would specify a
   substitution, such as 'lli', and then additionally a set
   of characters that should fail to match before and after
   the tool.  This was used, for example, so that matches that
   are parts of full paths would not be replaced.  But not all
   tools did this, and those that did would often re-invent
   the set of characters themselves, leading to inconsistency.
   Now, every tool substitution defaults to using a sane set
   of reasonable defaults and you have to explicitly opt out
   of it.  This actually fixed a few latent bugs that were
   never being surfaced, but only on accident.

2. There was no standard way for the system to decide how to
   locate a tool.  Sometimes you have an explicit path, sometimes
   we would search for it and build up a path ourselves, and
   sometimes we would build up a full command line.  Furthermore,
   there was no standardized way to handle missing tools.  Do we
   warn, fail, ignore, etc?  All of this is now encapsulated in
   the ToolSubst class.  You either specify an exact command to
   run, or an instance of FindTool('<tool-name>') and everything
   else just works.  Furthermore, you can specify an action to
   take if the tool cannot be resolved.

Differential Revision: https://reviews.llvm.org/D38565

llvm-svn: 315085
2017-10-06 17:54:46 +00:00
Zachary Turner c981448063 Run pyformat on lit code.
llvm-svn: 315084
2017-10-06 17:54:27 +00:00
Diana Picus 57285d7a43 [ARM] GlobalISel: Make tests less strict
These are intended as integration tests, so they shouldn't be too
specific about what they're checking.

llvm-svn: 315083
2017-10-06 17:47:27 +00:00
Francis Ricci b468fd64f9 [dsymutil] Emit valid debug locations when no symbol flags are set
Summary:
swiftc emits symbols without flags set, which led dsymutil to ignore
them when searching for global symbols, causing dwarf location data
to be omitted. Xcode's dsymutil handles this case correctly, and emits
valid location data. Add this functionality to llvm-dsymutil by
allowing parsing of symbols with no flags set.

Reviewers: aprantl, friss, JDevlieghere

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D38587

llvm-svn: 315082
2017-10-06 17:43:37 +00:00
Stanislav Mekhanoshin de42c29a68 [AMDGPU] New 64 bit div/rem expansion
Old expansion was 20 VGPRs, 78 SGPRs and ~380 instructions.
This expansion is 11 VGPRs, 12 SGPRs and ~120 instructions.

Passes OpenCL conformance test_integer_ops quick_[u]long_math

Differential Revision: https://reviews.llvm.org/D38607

llvm-svn: 315081
2017-10-06 17:24:45 +00:00
Dehao Chen 9bd60429e2 Directly return promoted direct call instead of rely on stripPointerCast.
Summary: stripPointerCast is not reliably returning the value that's being type-casted. Instead it may look further at function attributes to further propagate the value. Instead of relying on stripPOintercast, the more reliable solution is to directly use the pointer to the promoted direct call.

Reviewers: tejohnson, davidxl

Reviewed By: tejohnson

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D38603

llvm-svn: 315077
2017-10-06 17:04:55 +00:00
Diana Picus e393bc72ee [ARM] GlobalISel: Select shifts
Unfortunately TableGen doesn't handle this yet:
Unable to deduce gMIR opcode to handle Src (which is a leaf).

Just add some temporary hand-written code to generate the proper MOVsr.

llvm-svn: 315071
2017-10-06 15:39:16 +00:00
Diana Picus a81a4b17e5 [ARM] GlobalISel: Map shift operands to GPRs
llvm-svn: 315067
2017-10-06 14:52:43 +00:00
Francis Ricci 8aedfde298 [llvm-dsymutil] Add support for __swift_ast MachO DWARF section
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.

Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).

Reviewers: aprantl, friss

Subscribers: llvm-commits, JDevlieghere

Differential Revision: https://reviews.llvm.org/D38504

llvm-svn: 315066
2017-10-06 14:49:20 +00:00
Diana Picus 2c95730450 [ARM] GlobalISel: Mark shifts as legal for s32
The new legalize combiner introduces shifts all over the place, so we
should support them sooner rather than later.

llvm-svn: 315064
2017-10-06 14:30:05 +00:00
Jonas Paulsson c63ed222b8 [SystemZ] Enable machine scheduler.
The machine scheduler (before register allocation) is enabled by default for
SystemZ.

The SelectionDAG scheduling preference now becomes source order scheduling
(was regpressure).

Review: Ulrich Weigand
https://reviews.llvm.org/D37977

llvm-svn: 315063
2017-10-06 13:59:28 +00:00
Clement Courbet 028d2eb671 [MergeICmp][NFC] Make test tuple-four-int8.ll more readable.
llvm-svn: 315062
2017-10-06 13:45:16 +00:00
Simon Pilgrim a29dbdf2ca [X86][SSE] Add SKX cpu tests to SSE/AVX scheduling tests (D38443)
llvm-svn: 315061
2017-10-06 13:40:29 +00:00
Clement Courbet d12c189e2e Revert "[MergeICmps] Disable mergeicmps if the target does not want to handle memcmp expansion."
Still a few stability issues on windows.

This reverts commit 67e3db9bc121ba244e20337aabc7cf341a62b545.

llvm-svn: 315058
2017-10-06 13:02:24 +00:00
Clement Courbet 4e1bae8136 Re-land "[MergeICmps] Disable mergeicmps if the target does not want to handle memcmp expansion."
(fixed unit tests by making comparisons stable)

This reverts commit 1b2d359ce256fd6737da4e93833346a0bd6d7583.

llvm-svn: 315056
2017-10-06 12:12:35 +00:00
Xinliang David Li bcd36f7c5a Roll forward r314928
Fixed ThinLTO bootstrap failure : track new
bitcast per incomingVal. Added new tests.

llvm-svn: 315044
2017-10-06 05:15:25 +00:00
Francis Ricci b4e77d98ed Revert "[llvm-dsymutil] Add support for __swift_ast MachO DWARF section"
Breaks aarch64 builders

This reverts commit r315014.

llvm-svn: 315034
2017-10-05 23:09:17 +00:00
Peter Collingbourne 715bcfe0c9 ModuleUtils: Stop using comdat members to generate unique module ids.
It is possible for two modules to define the same set of external
symbols without causing a duplicate symbol error at link time,
as long as each of the symbols is a comdat member. So we cannot
use them as part of a unique id for the module.

Differential Revision: https://reviews.llvm.org/D38602

llvm-svn: 315026
2017-10-05 21:54:53 +00:00
Derek Schuff 885dc59297 [WebAssembly] Add the rest of the atomic loads
Add extending loads and constant offset patterns
A bit more refactoring of the tablegen to make the patterns fairly nice and
uniform between the regular and atomic loads.

Differential Revision: https://reviews.llvm.org/D38523

llvm-svn: 315022
2017-10-05 21:18:42 +00:00
Sanjay Patel 7ac2db6a48 [InstCombine] improve folds for icmp gt/lt (shr X, C1), C2
We can always eliminate the shift in: icmp gt/lt (shr X, C1), C2 --> icmp gt/lt X, C'
This patch was supposed to just be an efficiency improvement because we were doing this 3-step process to fold:

IC: Visiting:   %c = icmp ugt i4 %s, 1
IC: ADD:   %s = lshr i4 %x, 1
IC: ADD:   %1 = udiv i4 %x, 2
IC: Old =   %c = icmp ugt i4 %1, 1
    New =   <badref> = icmp uge i4 %x, 4
IC: ADD:   %c = icmp uge i4 %x, 4
IC: ERASE   %2 = icmp ugt i4 %1, 1
IC: Visiting:   %c = icmp uge i4 %x, 4
IC: Old =   %c = icmp uge i4 %x, 4
    New =   <badref> = icmp ugt i4 %x, 3
IC: ADD:   %c = icmp ugt i4 %x, 3
IC: ERASE   %2 = icmp uge i4 %x, 4
IC: Visiting:   %c = icmp ugt i4 %x, 3
IC: DCE:   %1 = udiv i4 %x, 2
IC: ERASE   %1 = udiv i4 %x, 2
IC: DCE:   %s = lshr i4 %x, 1
IC: ERASE   %s = lshr i4 %x, 1
IC: Visiting:   ret i1 %c

When we could go directly to canonical icmp form:

IC: Visiting:   %c = icmp ugt i4 %s, 1
IC: Old =   %c = icmp ugt i4 %s, 1
    New =   <badref> = icmp ugt i4 %x, 3
IC: ADD:   %c = icmp ugt i4 %x, 3
IC: ERASE   %1 = icmp ugt i4 %s, 1
IC: ADD:   %s = lshr i4 %x, 1
IC: DCE:   %s = lshr i4 %x, 1
IC: ERASE   %s = lshr i4 %x, 1
IC: Visiting:   %c = icmp ugt i4 %x, 3

...but then I noticed that the folds were incomplete too:
https://godbolt.org/g/aB2hLE

Here are attempts to prove the logic with Alive:
https://rise4fun.com/Alive/92o

Name: lshr_ult
Pre: ((C2 << C1) u>> C1) == C2
%sh = lshr i8 %x, C1
%r = icmp ult i8 %sh, C2
  =>
%r = icmp ult i8 %x, (C2 << C1)

Name: ashr_slt
Pre: ((C2 << C1) >> C1) == C2
%sh = ashr i8 %x, C1
%r = icmp slt i8 %sh, C2
  =>
%r = icmp slt i8 %x, (C2 << C1)

Name: lshr_ugt
Pre: (((C2+1) << C1) u>> C1) == (C2+1)
%sh = lshr i8 %x, C1
%r = icmp ugt i8 %sh, C2
  =>
%r = icmp ugt i8 %x, ((C2+1) << C1) - 1

Name: ashr_sgt
Pre: (C2 != 127) && ((C2+1) << C1 != -128) && (((C2+1) << C1) >> C1) == (C2+1)
%sh = ashr i8 %x, C1
%r = icmp sgt i8 %sh, C2
  =>
%r = icmp sgt i8 %x, ((C2+1) << C1) - 1

Name: ashr_exact_sgt
Pre: ((C2 << C1) >> C1) == C2
%sh = ashr exact i8 %x, C1
%r = icmp sgt i8 %sh, C2
  =>
%r = icmp sgt i8 %x, (C2 << C1)

Name: ashr_exact_slt
Pre: ((C2 << C1) >> C1) == C2
%sh = ashr exact i8 %x, C1
%r = icmp slt i8 %sh, C2
  =>
%r = icmp slt i8 %x, (C2 << C1)

Name: lshr_exact_ugt
Pre: ((C2 << C1) u>> C1) == C2
%sh = lshr exact i8 %x, C1
%r = icmp ugt i8 %sh, C2
  =>
%r = icmp ugt i8 %x, (C2 << C1)

Name: lshr_exact_ult
Pre: ((C2 << C1) u>> C1) == C2
%sh = lshr exact i8 %x, C1
%r = icmp ult i8 %sh, C2
  =>
%r = icmp ult i8 %x, (C2 << C1)

We did something similar for 'shl' in D28406.

Differential Revision: https://reviews.llvm.org/D38514

llvm-svn: 315021
2017-10-05 21:11:49 +00:00
Francis Ricci 6ae88262a8 [dsymutil] Fix typo in swift-ast.test
llvm-svn: 315017
2017-10-05 20:16:16 +00:00
Dehao Chen 16f01fb1db Annotate VP prof on indirect call if it is ICPed in the profiled binary.
Summary: In SamplePGO, when an indirect call is promoted in the profiled binary, before profile annotation, it will be promoted and inlined. For the original indirect call, the current implementation will not mark VP profile on it. This is an issue when profile becomes stale. This patch annotates VP prof on indirect calls during annotation.

Reviewers: tejohnson

Reviewed By: tejohnson

Subscribers: sanjoy, llvm-commits

Differential Revision: https://reviews.llvm.org/D38477

llvm-svn: 315016
2017-10-05 20:15:29 +00:00
Francis Ricci 2b513b5c99 [llvm-dsymutil] Add support for __swift_ast MachO DWARF section
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.

Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).

Reviewers: aprantl, friss

Subscribers: llvm-commits, JDevlieghere

Differential Revision: https://reviews.llvm.org/D38504

llvm-svn: 315014
2017-10-05 20:03:01 +00:00
Rafael Espindola 42eb1f2ba9 Added phdr upper bound checks to ElfObject.
Ensure the program_headers call will fail correctly if the program
headers are larger than the underlying buffer.

Patch by Parker Thompson!

llvm-svn: 315012
2017-10-05 20:01:32 +00:00
Francis Ricci 5f689d0db3 Revert "[llvm-dsymutil] Add support for __swift_ast MachO DWARF section"
This reverts commit r315004, because of a failing test on non-apple platforms

llvm-svn: 315009
2017-10-05 19:47:13 +00:00
Francis Ricci 7767277639 [llvm-dsymutil] Add support for __swift_ast MachO DWARF section
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.

Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).

Reviewers: aprantl, friss

Subscribers: llvm-commits, JDevlieghere

Differential Revision: https://reviews.llvm.org/D38504

llvm-svn: 315004
2017-10-05 19:17:28 +00:00
Davide Italiano e070721308 [NewPassManager] Run global dead code elimination after the inliner.
This is the same exact change we did for the current pass manager
in rL314997, but the new pass manager pipeline already happened
to run GlobalOpt after the inliner, so we just insert a run of
GDCE here.

llvm-svn: 315003
2017-10-05 18:36:01 +00:00
Balaram Makam 7c79470c71 [ARM/AARCH64] Make test MachineBranchProb.ll more robust and re-enable for ARM/AArch64
Summary: Make test robust enough to not fail due to CFG changes and re-enable for ARM/AArch64.

Reviewers: rovka, fhahn

Reviewed By: fhahn

Subscribers: fhahn, aemerson, rengolin, mcrosier, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D38590

llvm-svn: 315002
2017-10-05 18:33:34 +00:00
Davide Italiano c8708e59e8 [PassManager] Improve the interaction between -O2 and ThinLTO.
Run GDCE slightly later so that we don't have to repeat it
twice when preparing for Thin. Thanks to Mehdi for the suggestion.

llvm-svn: 314999
2017-10-05 18:23:25 +00:00
Davide Italiano ff829cea8b [PassManager] Run global optimizations after the inliner.
The inliner performs some kind of dead code elimination as it goes,
but there are cases that are not really caught by it. We might
at some point consider teaching the inliner about them, but it
is OK for now to run GlobalOpt + GlobalDCE in tandem as their
benefits generally outweight the cost, making the whole pipeline
faster.

This fixes PR34652.

Differential Revision: https://reviews.llvm.org/D38154

llvm-svn: 314997
2017-10-05 18:06:37 +00:00
Petar Jovanovic 65f10246bb [mips] implement .set dspr2 directive
Implement .set dspr2 directive with appropriate feature bits. This
directive is a counterpart of -mattr=dspr2 command line option with the
exception that it does not influence elf header flags.

Patch by Milos Stojanovic.

Differential Revision: https://reviews.llvm.org/D38537

llvm-svn: 314994
2017-10-05 17:40:32 +00:00
Matt Arsenault 2d3f8f333d AMDGPU: Set v2i32 any_extend to expand
llvm-svn: 314993
2017-10-05 17:38:30 +00:00
Rong Xu 289da65698 [ProfileData] Fix data racing in merging indexed profiles
There is data racing to the static variable RecordIndex in index profile reader
when merging in multiple threads. Make it a member variable in
IndexedInstrProfReader to fix this.

Differential Revision: https://reviews.llvm.org/D38431

llvm-svn: 314990
2017-10-05 17:05:20 +00:00
Artur Pilipenko 7b15254c8f [X86] Fix chains update when lowering BUILD_VECTOR to a vector load
The code which lowers BUILD_VECTOR of consecutive loads into a single vector
load doesn't update chains properly. As a result the vector load can be
reordered with the store to the same location.

The current code in EltsFromConsecutiveLoads only updates the chain following
the first load. The fix is to update the chains following all the loads
comprising the vector.

This is a fix for PR10114.

Reviewed By: niravd

Differential Revision: https://reviews.llvm.org/D38547

llvm-svn: 314988
2017-10-05 16:28:21 +00:00