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5 years agoPython compat - iterator protocol
Serge Guelton [Thu, 3 Jan 2019 15:43:14 +0000 (15:43 +0000)]
Python compat - iterator protocol

In Python2 next() is used wile it's __next__ in Python3.

Differential Revision: https://reviews.llvm.org/D56250

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350326 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[CostModel][X86] Add truncate cost tests to cover all legal destination types
Simon Pilgrim [Thu, 3 Jan 2019 14:49:39 +0000 (14:49 +0000)]
[CostModel][X86] Add truncate cost tests to cover all legal destination types

We were only testing costs for legal source vector element counts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350323 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MCA] Improve code comment and reuse an helper function in ResourceManager. NFCI
Andrea Di Biagio [Thu, 3 Jan 2019 14:47:46 +0000 (14:47 +0000)]
[MCA] Improve code comment and reuse an helper function in ResourceManager. NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350322 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[RISCV][MC] Accept %lo and %pcrel_lo on operands to li
Alex Bradbury [Thu, 3 Jan 2019 14:41:41 +0000 (14:41 +0000)]
[RISCV][MC] Accept %lo and %pcrel_lo on operands to li

This matches GNU assembler behaviour.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350321 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - decode/encode string
Serge Guelton [Thu, 3 Jan 2019 14:40:34 +0000 (14:40 +0000)]
Python compat - decode/encode string

Differential Revision: https://reviews.llvm.org/D56258

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350320 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - test if type is integral
Serge Guelton [Thu, 3 Jan 2019 14:12:50 +0000 (14:12 +0000)]
Python compat - test if type is integral

Rely on numbers.Integral instead of int/long

Differential Revision: https://reviews.llvm.org/D56262

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350316 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - urllib
Serge Guelton [Thu, 3 Jan 2019 14:12:44 +0000 (14:12 +0000)]
Python compat - urllib

Differential Revision: https://reviews.llvm.org/D56261

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350315 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - has_key vs. in operator
Serge Guelton [Thu, 3 Jan 2019 14:12:37 +0000 (14:12 +0000)]
Python compat - has_key vs. in operator

Use portable `in` operator instead of `has_key(...)` method.

Differential Revision: https://reviews.llvm.org/D56260

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350314 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - map/filter
Serge Guelton [Thu, 3 Jan 2019 14:12:30 +0000 (14:12 +0000)]
Python compat - map/filter

Differential Revision: https://reviews.llvm.org/D56259

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350313 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - iteritems() vs. items()
Serge Guelton [Thu, 3 Jan 2019 14:12:23 +0000 (14:12 +0000)]
Python compat - iteritems() vs. items()

Always use `items()` and introduce extra `list(...)` call when needed.

Differential Revision: https://reviews.llvm.org/D56257

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350312 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - portable way of raising exceptions
Serge Guelton [Thu, 3 Jan 2019 14:12:13 +0000 (14:12 +0000)]
Python compat - portable way of raising exceptions

Differential Revision: https://reviews.llvm.org/D56256

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350311 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC] Remove unused Python import
Serge Guelton [Thu, 3 Jan 2019 14:12:07 +0000 (14:12 +0000)]
[NFC] Remove unused Python import

Differential Revision: https://reviews.llvm.org/D56254

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350310 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPythran compat - range vs. xrange
Serge Guelton [Thu, 3 Jan 2019 14:11:58 +0000 (14:11 +0000)]
Pythran compat - range vs. xrange

Use range instead of xrange whenever possible. The extra list creation in Python2
is generally not a performance bottleneck.

Differential Revision: https://reviews.llvm.org/D56253

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350309 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - assertRaisesRegex
Serge Guelton [Thu, 3 Jan 2019 14:11:41 +0000 (14:11 +0000)]
Python compat - assertRaisesRegex

Python3 uses assertRaisesRegex instad of assertRaisesRegexp.

Differential Revision: https://reviews.llvm.org/D56251

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350308 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoPython compat - print statement
Serge Guelton [Thu, 3 Jan 2019 14:11:33 +0000 (14:11 +0000)]
Python compat - print statement

Make sure all print statements are compatible with Python 2 and Python3 using
the `from __future__ import print_function` statement.

Differential Revision: https://reviews.llvm.org/D56249

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350307 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NewPM] Port Msan
Philip Pfaffe [Thu, 3 Jan 2019 13:42:44 +0000 (13:42 +0000)]
[NewPM] Port Msan

Summary:
Keeping msan a function pass requires replacing the module level initialization:
That means, don't define a ctor function which calls __msan_init, instead just
declare the init function at the first access, and add that to the global ctors
list.

Changes:
- Pull the actual sanitizer and the wrapper pass apart.
- Add a newpm msan pass. The function pass inserts calls to runtime
  library functions, for which it inserts declarations as necessary.
- Update tests.

Caveats:
- There is one test that I dropped, because it specifically tested the
  definition of the ctor.

Reviewers: chandlerc, fedor.sergeev, leonardchan, vitalybuka

Subscribers: sdardis, nemanjai, javed.absar, hiraditya, kbarton, bollu, atanasyan, jsji

Differential Revision: https://reviews.llvm.org/D55647

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350305 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC] Fix missing testfile change of rL350299
Diogo N. Sampaio [Thu, 3 Jan 2019 12:48:06 +0000 (12:48 +0000)]
[NFC] Fix missing testfile change of rL350299

This file was missing on the patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350302 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Cleanup saturated add/sub tests
Simon Pilgrim [Thu, 3 Jan 2019 12:31:13 +0000 (12:31 +0000)]
[X86] Cleanup saturated add/sub tests
Use X86/X64 check prefixes
Use nounwind to reduce cfi noise

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350301 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SLPVectorizer] Flag ADD/SUB SSAT/USAT intrinsics trivially vectorizable (PR40123)
Simon Pilgrim [Thu, 3 Jan 2019 12:18:23 +0000 (12:18 +0000)]
[SLPVectorizer] Flag ADD/SUB SSAT/USAT intrinsics trivially vectorizable (PR40123)

Enables SLP vectorization for the SSE2 PADDS/PADDUS/PSUBS/PSUBUS style intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350300 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM] Add command-line option for SB
Diogo N. Sampaio [Thu, 3 Jan 2019 12:09:12 +0000 (12:09 +0000)]
[ARM] Add command-line option for SB

SB (Speculative Barrier) is only mandatory from 8.5
onwards but is optional from Armv8.0-A. This patch adds a command
line option to enable SB, as it was previously only possible to
enable by selecting -march=armv8.5-a.

This patch also renames FeatureSpecRestrict to FeatureSB.

Reviewed By: olista01, LukeCheeseman

Differential Revision: https://reviews.llvm.org/D55990

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350299 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SLPVectorizer][X86] Add ADD/SUB SSAT/USAT tests (PR40123)
Simon Pilgrim [Thu, 3 Jan 2019 12:02:14 +0000 (12:02 +0000)]
[SLPVectorizer][X86] Add ADD/SUB SSAT/USAT tests (PR40123)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350297 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachinePipeliner] Add missing header file to MachinePipeliner.h
Lama Saba [Thu, 3 Jan 2019 11:56:27 +0000 (11:56 +0000)]
[MachinePipeliner] Add missing header file to MachinePipeliner.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350296 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add ADD/SUB SSAT/USAT vector costs (PR40123)
Simon Pilgrim [Thu, 3 Jan 2019 11:38:42 +0000 (11:38 +0000)]
[X86] Add ADD/SUB SSAT/USAT vector costs (PR40123)

Costs for real SSE2 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350295 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add ADD/SUB SSAT/USAT cost tests (PR40123)
Simon Pilgrim [Thu, 3 Jan 2019 11:29:24 +0000 (11:29 +0000)]
[X86] Add ADD/SUB SSAT/USAT cost tests (PR40123)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350293 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AMDGPU] Change section name with metadata access
Piotr Sobczak [Thu, 3 Jan 2019 11:22:58 +0000 (11:22 +0000)]
[AMDGPU] Change section name with metadata access

Summary:
The commit rL348922 introduced a means to set Metadata
section kind for a global variable, if its explicit section
name was prefixed with ".AMDGPU.metadata.".

This patch changes that prefix to ".AMDGPU.comment.",
as "metadata" in the section name might lead to
ambiguity with metadata used by AMD PAL runtime.

Change-Id: Idd4748800d6fe801441d91595fc21e5a4171e668

Reviewers: kzhuravl

Reviewed By: kzhuravl

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

Differential Revision: https://reviews.llvm.org/D56197

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350292 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoResubmit rL345008 "Split MachinePipeliner code into header and cpp files"
Lama Saba [Thu, 3 Jan 2019 10:03:54 +0000 (10:03 +0000)]
Resubmit rL345008 "Split MachinePipeliner code into header and cpp files"

The commit caused unclear failures in http://green.lab.llvm.org/green//job/lldb-cmake/
will revert if the error reappears

Differential Revision: https://reviews.llvm.org/D56084

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350290 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[CodeGen] Skip over dbg-instr in twoaddr pass
Markus Lavin [Thu, 3 Jan 2019 08:36:06 +0000 (08:36 +0000)]
[CodeGen] Skip over dbg-instr in twoaddr pass

A DBG_VALUE between a two-address instruction and a following COPY
would prevent rescheduleMIBelowKill optimization inside
TwoAddressInstructionPass.

Differential Revision: https://reviews.llvm.org/D55987

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350289 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-readobj] [COFF] Print the symbol index for relocations
Martin Storsjo [Thu, 3 Jan 2019 08:08:23 +0000 (08:08 +0000)]
[llvm-readobj] [COFF] Print the symbol index for relocations

There can be multiple local symbols with the same name (for e.g.
comdat sections), and thus the symbol name itself isn't enough
to disambiguate symbols.

Differential Revision: https://reviews.llvm.org/D56140

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350288 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add test cases for opportunities to use KTEST when check if the result of ANDin...
Craig Topper [Thu, 3 Jan 2019 07:12:54 +0000 (07:12 +0000)]
[X86] Add test cases for opportunities to use KTEST when check if the result of ANDing two mask registers is zero.

The test cases are constructed to avoid folding the AND into a masked compare operation.

Currently we emit a KAND and a KORTEST for these cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350287 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoDon't go over 80 chars in MCStreamer.cpp. NFC.
Kristina Brooks [Thu, 3 Jan 2019 06:06:38 +0000 (06:06 +0000)]
Don't go over 80 chars in MCStreamer.cpp. NFC.

Fixing up style issues around the area to prepare for
a larger differential.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350286 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[Power9] Enable the Out-of-Order scheduling model for P9 hw
QingShan Zhang [Thu, 3 Jan 2019 05:04:18 +0000 (05:04 +0000)]
[Power9] Enable the Out-of-Order scheduling model for P9 hw

When switched to the MI scheduler for P9, the hardware is modeled as out of order.
However, inside the MI Scheduler algorithm, we still use the in-order scheduling model
as the MicroOpBufferSize isn't set. The MI scheduler take it as the hw cannot buffer
the op. So, only when all the available instructions issued, the pending instruction
could be scheduled. That is not true for our P9 hw in fact.

This patch is trying to enable the Out-of-Order scheduling model. The buffer size 44 is
picked from the P9 hw spec, and the perf test indicate that, its value won't hurt the cpu2017.

With this patch, there are 3 specs improved over 3% and 1 spec deg over 3%. The detail is as follows:

x264_r: +6.95%
cactuBSSN_r: +6.94%
lbm_r: +4.11%
xz_r: -3.85%

And the GEOMEAN for all the C/C++ spec in spec2017 is about 0.18% improved.

Reviewer: Nemanjai
Differential Revision: https://reviews.llvm.org/D55810

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350285 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoTeach ObjCARC optimizer about equivalent PHIs when eliminating autoreleaseRV/retainRV...
Pete Cooper [Thu, 3 Jan 2019 01:38:08 +0000 (01:38 +0000)]
Teach ObjCARC optimizer about equivalent PHIs when eliminating autoreleaseRV/retainRV pairs

OptimizeAutoreleaseRVCall skips optimizing llvm.objc.autoreleaseReturnValue if it
sees a user which is llvm.objc.retainAutoreleasedReturnValue, and if they have
equivalent arguments (either identical or equivalent PHIs). It then assumes that
ObjCARCOpt::OptimizeRetainRVCall will optimize the pair instead.

Trouble is, ObjCARCOpt::OptimizeRetainRVCall doesn't know about equivalent PHIs
so optimizes in a different way and we are left with an unoptimized llvm.objc.autoreleaseReturnValue.

This teaches ObjCARCOpt::OptimizeRetainRVCall to also understand PHI equivalence.

rdar://problem/47005143

Reviewed By: ahatanak

Differential Revision: https://reviews.llvm.org/D56235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350284 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix MSVC visualizer for PointerUnion4
Mike Spertus [Thu, 3 Jan 2019 00:52:54 +0000 (00:52 +0000)]
Fix MSVC visualizer for PointerUnion4

Calculate which item is being held and then display it with the appropriate type. We also
optimize the display of PointerUnion3 to take advantage of our knowing that the IntMask is
always 1 in PointerUnion types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350280 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LLVM-C] Expand LLVMRelocMode
Robert Widmann [Thu, 3 Jan 2019 00:33:44 +0000 (00:33 +0000)]
[LLVM-C] Expand LLVMRelocMode

Summary: Add read[only|write] PIC relocation models to the C API and teach the TargetMachine API about it.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56187

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350279 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[tblgen][disasm] Emit record names again when decoder conflicts occur.
Daniel Sanders [Thu, 3 Jan 2019 00:14:33 +0000 (00:14 +0000)]
[tblgen][disasm] Emit record names again when decoder conflicts occur.

And add a test for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350277 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gold] emit assembly listing from gold plugin on LTO stage
Teresa Johnson [Wed, 2 Jan 2019 23:48:00 +0000 (23:48 +0000)]
[gold] emit assembly listing from gold plugin on LTO stage

Summary:
Sometimes it's useful to emit assembly after LTO stage to modify it manually. Emitting precodegen bitcode file (via save-temps plugin option) and then feeding it to llc doesn't always give the same binary as original.
This patch is simpler alternative to https://reviews.llvm.org/D24020.

Patch by Denis Bakhvalov.

Reviewers: mehdi_amini, tejohnson

Reviewed By: tejohnson

Subscribers: MaskRay, inglorion, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D56114

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350276 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoMSVC Visualizer for PointerUnion3
Mike Spertus [Wed, 2 Jan 2019 23:46:59 +0000 (23:46 +0000)]
MSVC Visualizer for PointerUnion3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350275 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add load folding support to the custom isel we do for X86ISD::UMUL/SMUL.
Craig Topper [Wed, 2 Jan 2019 23:24:08 +0000 (23:24 +0000)]
[X86] Add load folding support to the custom isel we do for X86ISD::UMUL/SMUL.

The peephole pass isn't always able to fold the load because it can't commute the implicit usage of AL/AX/EAX/RAX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350272 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add test cases to show that we fail to fold loads into i8 smulo and i8/i16...
Craig Topper [Wed, 2 Jan 2019 23:24:03 +0000 (23:24 +0000)]
[X86] Add test cases to show that we fail to fold loads into i8 smulo and i8/i16/i32/i64 umulo lowering without the assistance of the peephole pass. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350271 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] made assembler parse block_type
Wouter van Oortmerssen [Wed, 2 Jan 2019 23:23:51 +0000 (23:23 +0000)]
[WebAssembly] made assembler parse block_type

Summary:
This was previously ignored and an incorrect value generated.

Also fixed Disassembler's handling of block_type.

Reviewers: dschuff, aheejin

Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D56092

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350270 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ThinLTO] Scan all variants of vague symbol for reachability.
Xin Tong [Wed, 2 Jan 2019 23:18:20 +0000 (23:18 +0000)]
[ThinLTO] Scan all variants of vague symbol for reachability.

Summary:
Alias can make one (but not all) live, we still need to scan all others if this symbol is reachable
from somewhere else.

Reviewers: tejohnson, grimar

Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D56117

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350269 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BDCE] Fix typo in test; NFC
Nikita Popov [Wed, 2 Jan 2019 22:34:32 +0000 (22:34 +0000)]
[BDCE] Fix typo in test; NFC

shl by 32 is undefined. This was intended to be a shl by 31 as part
of a rotate sequence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350265 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix assert in ObjCARC optimizer when deleting retainBlock of null or undef.
Pete Cooper [Wed, 2 Jan 2019 21:00:02 +0000 (21:00 +0000)]
Fix assert in ObjCARC optimizer when deleting retainBlock of null or undef.

The caller to EraseInstruction had this conditional:

    // ARC calls with null are no-ops. Delete them.
    if (IsNullOrUndef(Arg))

but the assert inside EraseInstruction only allowed ConstantPointerNull and not
undef or bitcasts.

This adds support for both of these cases.

rdar://problem/47003805

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350261 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly][NFC] Elaborate on simd-noopt test comment
Thomas Lively [Wed, 2 Jan 2019 20:43:08 +0000 (20:43 +0000)]
[WebAssembly][NFC] Elaborate on simd-noopt test comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350260 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BDCE] Remove instructions without demanded bits
Nikita Popov [Wed, 2 Jan 2019 20:02:14 +0000 (20:02 +0000)]
[BDCE] Remove instructions without demanded bits

If an instruction has no demanded bits, remove it directly during BDCE,
instead of leaving it for something else to clean up.

Differential Revision: https://reviews.llvm.org/D56185

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350257 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoGit ignore CLion project configuration files. NFC
Pawel Bylica [Wed, 2 Jan 2019 19:58:07 +0000 (19:58 +0000)]
Git ignore CLion project configuration files. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350256 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFormat AggresiveInstCombine.cpp. NFC
Pawel Bylica [Wed, 2 Jan 2019 19:51:46 +0000 (19:51 +0000)]
Format AggresiveInstCombine.cpp. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350255 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix MSVC PointerUnion visualizer
Mike Spertus [Wed, 2 Jan 2019 19:26:50 +0000 (19:26 +0000)]
Fix MSVC PointerUnion visualizer

Differential Revision: https://reviews.llvm.org/D56186

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350250 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove X86ISD::INC/DEC. Just select them from X86ISD::ADD/SUB at isel time
Craig Topper [Wed, 2 Jan 2019 19:01:05 +0000 (19:01 +0000)]
[X86] Remove X86ISD::INC/DEC. Just select them from X86ISD::ADD/SUB at isel time

INC/DEC are pretty much the same as ADD/SUB except that they don't update the C flag.

This patch removes the special nodes and just pattern matches from ADD/SUB during isel if the C flag isn't being used.

I had to avoid selecting DEC is the result isn't used. This will become a SUB immediate which will turned into a CMP later by optimizeCompareInstr. This lead to the one test change where we use a CMP instead of a DEC for an overflow intrinsic since we only checked the flag.

This also exposed a hole in our RMW flag matching use of hasNoCarryFlagUses. Our root node for the match is a store and there's no guarantee that all the flag users have been selected yet. So hasNoCarryFlagUses needs to check copyToReg and machine opcodes, but it also needs to check for the pre-match SETCC, SETCC_CARRY, BRCOND, and CMOV opcodes.

Differential Revision: https://reviews.llvm.org/D55975

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350245 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MS Demangler] Add a flag for dumping types without tag specifier.
Zachary Turner [Wed, 2 Jan 2019 18:33:12 +0000 (18:33 +0000)]
[MS Demangler] Add a flag for dumping types without tag specifier.

Sometimes it's useful to be able to output demangled names without
tag specifiers like "struct", "class", etc.  This patch adds a
flag enabling this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350241 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DAGCombiner] After performing the division by constant optimization for a DIV or...
Craig Topper [Wed, 2 Jan 2019 18:19:07 +0000 (18:19 +0000)]
[DAGCombiner] After performing the division by constant optimization for a DIV or REM node, replace the users of the corresponding REM or DIV node if it exists.

Currently we expand the two nodes separately. This gives DAG combiner an opportunity to optimize the expanded sequence taking into account only one set of users. When we expand the other node we'll create the expansion again, but might not be able to optimize it the same way. So the nodes won't CSE and we'll have two similarish sequences in the same basic block. By expanding both nodes at the same time we'll avoid prematurely optimizing the expansion until both the division and remainder have been replaced.

Improves the test case from PR38217. There may be additional opportunities after this.

Differential Revision: https://reviews.llvm.org/D56145

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350239 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add fuzzers in llvm/tools that are needed for check-llvm
Nico Weber [Wed, 2 Jan 2019 18:13:14 +0000 (18:13 +0000)]
[gn build] Add fuzzers in llvm/tools that are needed for check-llvm

Also add a fuzzer() template for defining fuzzers that's similar to
add_llvm_fuzzer in the CMake build, and a build file for dependency
llvm/lib/FuzzMutate.

Also make `assert(defined(...` error strings a bit more self-consistent.

Differential Revision: https://reviews.llvm.org/D56194

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350238 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Adding full coverage of MC encoding for the XOP and LWP ISAs.
Craig Topper [Wed, 2 Jan 2019 18:09:41 +0000 (18:09 +0000)]
[X86] Adding full coverage of MC encoding for the XOP and LWP ISAs.

Adding MC regressions tests to cover the XOP isa set.
This patch is part of a larger task to cover MC encoding of all X86 isa sets started in revision: https://reviews.llvm.org/D39952

Differential Revision: https://reviews.llvm.org/D41392

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350237 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LegalizeIntegerTypes] When promoting the result of an extract_vector_elt also promot...
Craig Topper [Wed, 2 Jan 2019 17:58:30 +0000 (17:58 +0000)]
[LegalizeIntegerTypes] When promoting the result of an extract_vector_elt also promote the input type if necessary

By also promoting the input type we get a better idea for what scalar type to use. This can provide better results if the result of the extract is sign extended. What was previously happening is that the extract result would be legalized, sometime later the input of the sign extend would be legalized using the result of the extract. Then later the extract input would be legalized forcing a truncate into the input of the sign extend using a replace all uses. This requires DAG combine to combine out the sext/truncate pair. But sometimes we visited the truncate first and messed things up before the sext could be combined.

By creating the extract with the correct scalar type when we create legalize the result type, the truncate will be added right away. Then when the sign_extend input is legalized it will create an any_extend of the truncate which can be optimized by getNode to maybe remove the truncate. And then a sign_extend_inreg. Now DAG combine doesn't have to worry about getting rid of the extend.

This fixes the regression on X86 in D56156.

Differential Revision: https://reviews.llvm.org/D56176

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350236 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DAGCombiner][X86][PowerPC] Teach visitSIGN_EXTEND_INREG to fold (sext_in_reg (aext...
Craig Topper [Wed, 2 Jan 2019 17:58:27 +0000 (17:58 +0000)]
[DAGCombiner][X86][PowerPC] Teach visitSIGN_EXTEND_INREG to fold (sext_in_reg (aext/sext x)) -> (sext x) when x has more than 1 sign bit and the sext_inreg is from one of them.

If x has multiple sign bits than it doesn't matter which one we extend from so we can sext from x's msb instead.

The X86 setcc-combine.ll changes are a little weird. It appears we ended up with a (sext_inreg (aext (trunc (extractelt)))) after type legalization. The sext_inreg+aext now gets optimized by this combine to leave (sext (trunc (extractelt))). Then we visit the trunc before we visit the sext. This ends up changing the truncate to an extractvectorelt from a bitcasted vector. I have a follow up patch to fix this.

Differential Revision: https://reviews.llvm.org/D56156

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350235 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add build files for bugpoint-passes and LLVMHello plugins
Nico Weber [Wed, 2 Jan 2019 17:38:22 +0000 (17:38 +0000)]
[gn build] Add build files for bugpoint-passes and LLVMHello plugins

These two plugins are loaded into a host process that contains all LLVM
symbols, so they don't link against anything. This required minor readjustments
to the tablegen() setup of IR.

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56204

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350234 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: lli, lli-child-target
Nico Weber [Wed, 2 Jan 2019 17:36:41 +0000 (17:36 +0000)]
[gn build] Add some llvm/tools: lli, lli-child-target

Also add build files for dependencies llvm/lib/ExecutionEngine/{Interpreter,Orc}

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56193

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350226 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PowerPC] Remove SeenUse check when optimizing conditional branch in
Wei Mi [Wed, 2 Jan 2019 17:07:23 +0000 (17:07 +0000)]
[PowerPC] Remove SeenUse check when optimizing conditional branch in
PPCPreEmitPeephole pass.

PPCPreEmitPeephole will convert a BC to B when the conditional branch is
based on a constant CR by CRSET or CRUNSET. This is added in
https://reviews.llvm.org/rL343100.

When the conditional branch is known to be always taken, all branches will
be removed and a new unconditional branch will be inserted. However, when
SeenUse is false the original patch will not remove the branches, but still
insert the new unconditional branch, update the successors and create
inconsistent IR. Compiling the synthetic testcase included can show the
problem we run into.

The patch simply removes the SeenUse condition when adding branches into
InstrsToErase set.

Differential Revision: https://reviews.llvm.org/D56041

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350223 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Support SHLD/SHRD masked shift-counts (PR34641)
Simon Pilgrim [Wed, 2 Jan 2019 17:05:37 +0000 (17:05 +0000)]
[X86] Support SHLD/SHRD masked shift-counts (PR34641)

Peek through shift modulo masks while matching double shift patterns.

I was hoping to delay this until I could remove the X86 code with generic funnel shift matching (PR40081) but this will do for now.

Differential Revision: https://reviews.llvm.org/D56199

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350222 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[x86] add more tests for potential horizontal ops; NFC
Sanjay Patel [Wed, 2 Jan 2019 16:36:04 +0000 (16:36 +0000)]
[x86] add more tests for potential horizontal ops; NFC

As discussed in D56011 - add runs for AVX512 and tests with extra uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350221 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BasicAA] Support arbitrary pointer sizes (and fix an overflow bug)
Hal Finkel [Wed, 2 Jan 2019 16:28:09 +0000 (16:28 +0000)]
[BasicAA] Support arbitrary pointer sizes (and fix an overflow bug)

Motivated by the discussion in D38499, this patch updates BasicAA to support
arbitrary pointer sizes by switching most remaining non-APInt calculations to
use APInt. The size of these APInts is set to the maximum pointer size (maximum
over all address spaces described by the data layout string).

Most of this translation is straightforward, but this patch contains a fix for
a bug that revealed itself during this translation process. In order for
test/Analysis/BasicAA/gep-and-alias.ll to pass, which is run with 32-bit
pointers, the intermediate calculations must be performed using 64-bit
integers. This is because, as noted in the patch, when GetLinearExpression
decomposes an expression into C1*V+C2, and we then multiply this by Scale, and
distribute, to get (C1*Scale)*V + C2*Scale, it can be the case that, even
through C1*V+C2 does not overflow for relevant values of V, (C2*Scale) can
overflow. If this happens, later logic will draw invalid conclusions from the
(base) offset value. Thus, when initially applying the APInt conversion,
because the maximum pointer size in this test is 32 bits, it started failing.
Suspicious, I created a 64-bit version of this test (included here), and that
failed (miscompiled) on trunk for a similar reason (the multiplication can
overflow).

After fixing this overflow bug, the first test case (at least) in
Analysis/BasicAA/q.bad.ll started failing. This is also a 32-bit test, and was
relying on having 64-bit intermediate values to have BasicAA return an accurate
result. In order to fix this problem, and because I believe that it is not
uncommon to use i64 indexing expressions in 32-bit code (especially portable
code using int64_t), it seems reasonable to always use at least 64-bit
integers. In this way, we won't regress our analysis capabilities (and there's
a command-line option added, so experimenting with this should be easy).

As pointed out by Eli during the review, there are other potential overflow
conditions that this patch does not address. Fixing those is left to follow-up
work.

Patch by me with contributions from Michael Ferguson (mferguson@cray.com).

Differential Revision: https://reviews.llvm.org/D38662

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350220 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoExtend Module::getOrInsertGlobal to control the construction of the
Philip Pfaffe [Wed, 2 Jan 2019 15:41:47 +0000 (15:41 +0000)]
Extend Module::getOrInsertGlobal to control the construction of the
GlobalVariable

Summary:
Extend Module::getOrInsertGlobal to accept a callback for creating a new
GlobalVariable if necessary instead of calling the GV constructor
directly using default arguments. Additionally overload
getOrInsertGlobal for the previous default behavior.

Reviewers: chandlerc

Subscribers: hiraditya, llvm-commits, bollu

Differential Revision: https://reviews.llvm.org/D56130

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350219 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MCA] Minor refactoring of method DefaultResourceStrategy::select. NFCI
Andrea Di Biagio [Wed, 2 Jan 2019 15:40:52 +0000 (15:40 +0000)]
[MCA] Minor refactoring of method DefaultResourceStrategy::select. NFCI

Common code used by the default resource strategy to select pipeline resources
has been moved to an helper function.

The new selection logic has been slightly rewritten to get rid of a redundant
zero check on the `ReadyMask` value. Before this patch, method select internally
called function `PowerOf2Floor` to compute the next ready pipeline resource.
However, `PowerOf2Floor` forces an implicit (redundant) zero check on the input
value. By construction, `ReadyMask` can never be zero. This patch replaces the
call to `PowerOf2Floor` with an equivalent block of code which avoids the
redundant zero check. This gives a minor 3-3.5% speedup on a release build.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350218 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: bugpoint, dsymutil, llvm-opt-report
Nico Weber [Wed, 2 Jan 2019 12:43:56 +0000 (12:43 +0000)]
[gn build] Add some llvm/tools: bugpoint, dsymutil, llvm-opt-report

Also add build file for dependency llvm/lib/OptRemarks.

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56192

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350217 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-c-test, llvm-cfi-verify, llvm-cov, llvm-cvtres
Nico Weber [Wed, 2 Jan 2019 12:42:39 +0000 (12:42 +0000)]
[gn build] Add some llvm/tools: llvm-c-test, llvm-cfi-verify, llvm-cov, llvm-cvtres

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56191

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350216 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-cxxdump, llvm-cxxfilt, llvm-cxxmap
Nico Weber [Wed, 2 Jan 2019 12:40:04 +0000 (12:40 +0000)]
[gn build] Add some llvm/tools: llvm-cxxdump, llvm-cxxfilt, llvm-cxxmap

Needed for check-llvm.

This is the last target reading llvm_install_binutils_symlinks.

Differential Revision: https://reviews.llvm.org/D56190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350215 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-diff, llvm-dwp
Nico Weber [Wed, 2 Jan 2019 12:39:05 +0000 (12:39 +0000)]
[gn build] Add some llvm/tools: llvm-diff, llvm-dwp

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56189

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350214 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-mca, llvm-mt
Nico Weber [Wed, 2 Jan 2019 12:37:52 +0000 (12:37 +0000)]
[gn build] Add some llvm/tools: llvm-mca, llvm-mt

Also add build file for dependency llvm/lib/MCA.

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56166

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350213 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-size, llvm-split, llvm-strings
Nico Weber [Wed, 2 Jan 2019 12:34:57 +0000 (12:34 +0000)]
[gn build] Add some llvm/tools: llvm-size, llvm-split, llvm-strings

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56164

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350212 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-xray, sancov, sanstats, verify-uselistorder...
Nico Weber [Wed, 2 Jan 2019 12:32:49 +0000 (12:32 +0000)]
[gn build] Add some llvm/tools: llvm-xray, sancov, sanstats, verify-uselistorder, yaml-bench

Also add build file for dependency llvm/lib/XRay.

Needed for check-llvm.

(yaml-bench is an llvm/util, not an llvm/tool.)

Differential Revision: https://reviews.llvm.org/D56163

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350211 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AMDGPU] Handle OR as operand of raw load/store
Piotr Sobczak [Wed, 2 Jan 2019 09:47:41 +0000 (09:47 +0000)]
[AMDGPU] Handle OR as operand of raw load/store

Summary:
Use isBaseWithConstantOffset() which handles OR as an operand
to llvm.amdgcn.raw.buffer.load and llvm.amdgcn.raw.buffer.store.

Change-Id: Ifefb9dc5ded8710d333df07ab1900b230e33539a

Reviewers: nhaehnle, mareko, arsenm

Reviewed By: arsenm

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

Differential Revision: https://reviews.llvm.org/D55999

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350208 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert rL350035 "[llvm-exegesis] Clustering: don't enqueue a point multiple times"
Clement Courbet [Wed, 2 Jan 2019 09:21:00 +0000 (09:21 +0000)]
Revert rL350035 "[llvm-exegesis] Clustering: don't enqueue a point multiple times"

Let's discuss this on the review thread before submitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350207 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove the separate SMUL8/UMUL8 X86ISD opcodes by merging with SMUL/UMUL. Remov...
Craig Topper [Wed, 2 Jan 2019 06:40:11 +0000 (06:40 +0000)]
[X86] Remove the separate SMUL8/UMUL8 X86ISD opcodes by merging with SMUL/UMUL. Remove the second result from X86ISD::UMUL.

All of these use custom isel so we can pretty easily detect the differences in the custom code in X86ISelDAGToDAG. The ISD opcodes just need to express the desired semantics not the details of how they would be selected by isel. So unifying them lets us remove the special casing from lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350206 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Allow LowerSELECT and LowerBRCOND to directly lower i8 UMULO/SMULO.
Craig Topper [Wed, 2 Jan 2019 05:46:03 +0000 (05:46 +0000)]
[X86] Allow LowerSELECT and LowerBRCOND to directly lower i8 UMULO/SMULO.

These require a different X86ISD node to be created than i16/i32/i64. I guess no one wanted to add the special code for that except in LowerXALUO. But now LowerXALUO, LowerSELECT, and LowerBRCOND all use a common helper function so they all share the special code.

Unfortunately, there are no test changes because we seem to correct the miss in a DAG combine later. I did verify it manually using test cases from xmulo.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350205 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add i8/i16 smulo/umulo test cases where the overflow indication is used by...
Craig Topper [Wed, 2 Jan 2019 05:46:02 +0000 (05:46 +0000)]
[X86] Add i8/i16 smulo/umulo test cases where the overflow indication is used by a mask.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350204 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove KNL specific check prefix from xmulo.ll test. NFC
Craig Topper [Wed, 2 Jan 2019 05:46:00 +0000 (05:46 +0000)]
[X86] Remove KNL specific check prefix from xmulo.ll test. NFC

This was added at a time when i1 was a legal type with avx512f and there was a bug. i1 is no longer considered a legal type with avx512f so there should be no codegen difference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350203 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] canonicalize raw IR rotate patterns to funnel shift
Sanjay Patel [Tue, 1 Jan 2019 21:51:39 +0000 (21:51 +0000)]
[InstCombine] canonicalize raw IR rotate patterns to funnel shift

The final piece of IR-level analysis to allow this was committed with:
rL350188

Using the intrinsics should improve transforms based on cost models
like vectorization and inlining.

The backend should be prepared too, so we can now canonicalize more
sequences of shift/logic to the intrinsics and know that the end
result should be equal or better to the original code even if the
target does not have an actual rotate instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350199 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Factor the core code out of LowerXALUO into a helper function. Use it in LowerB...
Craig Topper [Tue, 1 Jan 2019 19:34:11 +0000 (19:34 +0000)]
[X86] Factor the core code out of LowerXALUO into a helper function. Use it in LowerBRCOND and LowerSELECT to avoid some duplicated code.

This makes it easier to keep the LowerBRCOND and LowerSELECT code in sync with LowerXALUO so they always pick the same operation for overflowing instructions.

This is inspired by the helper functions used by ARM and AArch64 for the same purpose.

The test change is because LowerSELECT was not in sync with LowerXALUO with regard to INC/DEC for SADDO/SSUBO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350198 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LLVM-C] bool -> LLVMBool
Robert Widmann [Tue, 1 Jan 2019 19:03:37 +0000 (19:03 +0000)]
[LLVM-C] bool -> LLVMBool

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350197 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LLVM-C] Add Accessors for Discarding Value Names in the IR
Robert Widmann [Tue, 1 Jan 2019 18:56:51 +0000 (18:56 +0000)]
[LLVM-C] Add Accessors for Discarding Value Names in the IR

Summary: Add accessors so the performance improvement from this setting is accessible to third parties.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56179

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350196 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove KNL specific check prefix from xaluo.ll test. NFC
Craig Topper [Tue, 1 Jan 2019 18:44:44 +0000 (18:44 +0000)]
[X86] Remove KNL specific check prefix from xaluo.ll test. NFC

This was added at a time when i1 was a legal type with avx512f and there was a bug. i1 is no longer considered a legal type with avx512f so there should be no codegen difference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350195 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add test cases to show where LowerSELECT doesn't select SADDO/SSUBO to INC...
Craig Topper [Tue, 1 Jan 2019 18:44:42 +0000 (18:44 +0000)]
[X86] Add test cases to show where LowerSELECT doesn't select SADDO/SSUBO to INC/DEC, but LowerXALUOOp does. Leading to duplicate code.

When SADDO/SSUBO is used as a part of a condition, the X86 backend has to lower the instruction twice. One for the flags use and then once for the data use. These two selections should be kept in sync so they end up with one node providing the data and the flags. This doesn't seem to be happening for INC/DEC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350194 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[x86] move/rename helper for horizontal op codegen; NFC
Sanjay Patel [Tue, 1 Jan 2019 16:08:36 +0000 (16:08 +0000)]
[x86] move/rename helper for horizontal op codegen; NFC

Preliminary commit as suggested in D56011.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350193 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BDCE] Regenerate test checks; NFC
Nikita Popov [Tue, 1 Jan 2019 12:27:23 +0000 (12:27 +0000)]
[BDCE] Regenerate test checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350190 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BDCE] Remove -instsimplify from BDCE test; NFC
Nikita Popov [Tue, 1 Jan 2019 10:17:35 +0000 (10:17 +0000)]
[BDCE] Remove -instsimplify from BDCE test; NFC

To make it more obvious which part of the transformation is carried
out by BDCE. Also drop the CHECK-IO lines which only run -instsimplify
as they don't really seem meaningful if the main check doesn't run
-instsimplify either.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350189 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoReapply "[BDCE][DemandedBits] Detect dead uses of undead instructions"
Nikita Popov [Tue, 1 Jan 2019 10:05:26 +0000 (10:05 +0000)]
Reapply "[BDCE][DemandedBits] Detect dead uses of undead instructions"

This (mostly) fixes https://bugs.llvm.org/show_bug.cgi?id=39771.

BDCE currently detects instructions that don't have any demanded bits
and replaces their uses with zero. However, if an instruction has
multiple uses, then some of the uses may be dead (have no demanded bits)
even though the instruction itself is still live. This patch extends
DemandedBits/BDCE to detect such uses and replace them with zero.
While this will not immediately render any instructions dead, it may
lead to simplifications (in the motivating case, by converting a rotate
into a simple shift), break dependencies, etc.

The implementation tries to strike a balance between analysis power and
complexity/memory usage. Originally I wanted to track demanded bits on
a per-use level, but ultimately we're only really interested in whether
a use is entirely dead or not. I'm using an extra set to track which uses
are dead. However, as initially all uses are dead, I'm not storing uses
those user is also dead. This case is checked separately instead.

The previous attempt to land this lead to miscompiles, because cases
where uses were initially dead but were later found to be live during
further analysis were not always correctly removed from the DeadUses
set. This is fixed now and the added test case demanstrates such an
instance.

Differential Revision: https://reviews.llvm.org/D55563

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350188 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoReversing the commit in revision 350186. Revision causes regression in 4
Ayonam Ray [Tue, 1 Jan 2019 07:28:55 +0000 (07:28 +0000)]
Reversing the commit in revision 350186.  Revision causes regression in 4
tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350187 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoOmit range checks from jump tables when lowering switches with unreachable
Ayonam Ray [Tue, 1 Jan 2019 06:37:50 +0000 (06:37 +0000)]
Omit range checks from jump tables when lowering switches with unreachable
default

During the lowering of a switch that would result in the generation of a jump
table, a range check is performed before indexing into the jump table, for the
switch value being outside the jump table range and a conditional branch is
inserted to jump to the default block. In case the default block is
unreachable, this conditional jump can be omitted. This patch implements
omitting this conditional branch for unreachable defaults.

Review Reference: D52002

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350186 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] canonicalize MUL with NEG operand
Chen Zheng [Tue, 1 Jan 2019 01:09:20 +0000 (01:09 +0000)]
[InstCombine] canonicalize MUL with NEG operand

-X * Y --> -(X * Y)
X * -Y --> -(X * Y)

Differential Revision: https://reviews.llvm.org/D55961

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350185 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-exegesis, llvm-extract, llvm-link
Nico Weber [Mon, 31 Dec 2018 23:48:22 +0000 (23:48 +0000)]
[gn build] Add some llvm/tools: llvm-exegesis, llvm-extract, llvm-link

Also add build file for dependency llvm/lib/ExecutionEngine/MCJIT.

The exegesis stuff is pretty hairy and knows a lot about Target internals (in
general, not specifically in the GN build). I put the llvm-tblgen -gen-exegesis
call in llvm/tools/llvm-exegesis/lib/X86, instead of in llvm/lib/Target/X86
where it is in CMake land, and asked on D52932 why it's in that place in the
CMake build.

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56167

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350184 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add some llvm/tools: llvm-rc, llvm-rtdyld
Nico Weber [Mon, 31 Dec 2018 23:32:15 +0000 (23:32 +0000)]
[gn build] Add some llvm/tools: llvm-rc, llvm-rtdyld

Also add build file for dependencies llvm/lib/ExecutionEngine,
llvm/lib/ExecutionEngine/RuntimeDyld.

Needed for check-llvm.

Differential Revision: https://reviews.llvm.org/D56165

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350183 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add PR34641 masked shld/shrd test cases
Simon Pilgrim [Mon, 31 Dec 2018 19:46:18 +0000 (19:46 +0000)]
[X86] Add PR34641 masked shld/shrd test cases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350181 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add additional RUN lines to prepare for D56156. NFC
Craig Topper [Mon, 31 Dec 2018 19:09:32 +0000 (19:09 +0000)]
[X86] Add additional RUN lines to prepare for D56156. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350180 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SelectionDAG] Add SIGN_EXTEND_VECTOR_INREG support to computeKnownBits.
Craig Topper [Mon, 31 Dec 2018 19:09:30 +0000 (19:09 +0000)]
[SelectionDAG] Add SIGN_EXTEND_VECTOR_INREG support to computeKnownBits.

Differential Revision: https://reviews.llvm.org/D56168

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350179 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add X86ISD::VSRAI to computeKnownBitsForTargetNode.
Craig Topper [Mon, 31 Dec 2018 19:09:27 +0000 (19:09 +0000)]
[X86] Add X86ISD::VSRAI to computeKnownBitsForTargetNode.

Differential Revision: https://reviews.llvm.org/D56169

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350178 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoKeep tablegen commands in alphabetical order. NFCI.
Simon Pilgrim [Mon, 31 Dec 2018 14:51:53 +0000 (14:51 +0000)]
Keep tablegen commands in alphabetical order. NFCI.

Mentioned on D56167.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350176 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[test] Fix propagating HOME envvar to unittests
Michal Gorny [Mon, 31 Dec 2018 13:48:12 +0000 (13:48 +0000)]
[test] Fix propagating HOME envvar to unittests

Propagate HOME environment variable to unittests.  This is necessary
to fix test failures resulting from pw_home pointing to a non-existing
directory while being overriden with HOME.  Apparently Gentoo users
hit this sometimes when they override build directory for Portage.

Original bug report: https://bugs.gentoo.org/674088

Differential Revision: https://reviews.llvm.org/D56162

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350175 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AArch64] Accept "sve" as arch feature in assembler
Martin Storsjo [Mon, 31 Dec 2018 10:22:04 +0000 (10:22 +0000)]
[AArch64] Accept "sve" as arch feature in assembler

Differential Revision: https://reviews.llvm.org/D56128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350174 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MSan] Handle llvm.is.constant intrinsic
Alexander Potapenko [Mon, 31 Dec 2018 09:42:23 +0000 (09:42 +0000)]
[MSan] Handle llvm.is.constant intrinsic

MSan used to report false positives in the case the argument of
llvm.is.constant intrinsic was uninitialized.
In fact checking this argument is unnecessary, as the intrinsic is only
used at compile time, and its value doesn't depend on the value of the
argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350173 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DAGCombiner] Add missing one use check on the shuffle in the bitcast(shuffle(bitcast...
Craig Topper [Mon, 31 Dec 2018 05:40:46 +0000 (05:40 +0000)]
[DAGCombiner] Add missing one use check on the shuffle in the bitcast(shuffle(bitcast(s0),bitcast(s1))) -> shuffle(s0,s1) transform.

Found while trying out some other changes so I don't really have a test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350172 91177308-0d34-0410-b5e6-96231b3b80d8