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Zachary Turner [Fri, 10 Mar 2017 17:39:21 +0000 (17:39 +0000)]
Add llvm::sys::fs::real_path.
LLVM already has real_path like functionality, but it is
cumbersome to use and involves clean up after (e.g. you have
to call openFileForRead, then close the resulting FD).
Furthermore, on Windows it doesn't work for directories since
opening a directory and opening a file require slightly
different flags.
So I add a simple function `real_path` which works for all
paths on all platforms and has a simple to use interface.
In doing so, I add the ability to opt in to resolving tilde
expressions (e.g. ~/foo), which are normally handled by
the shell.
Differential Revision: https://reviews.llvm.org/D30668
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297483
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Amaury Sechet [Fri, 10 Mar 2017 17:26:44 +0000 (17:26 +0000)]
[SelectionDAG] Make SelectionDAG aware of the known bits in USUBO and SSUBO and SUBC.
Summary:
Depends on D30379
This improves the state of things for the sub class of operation.
Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30436
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297482
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Simon Pilgrim [Fri, 10 Mar 2017 17:23:55 +0000 (17:23 +0000)]
[X86][MMX] Add tests showing missed opportunities to use MMX sitofp conversions
If we are transferring MMX registers to XMM for conversion we could use the MMX equivalents (CVTPI2PD + CVTPI2PS) without affecting rounding/exceptions etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297481
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Amaury Sechet [Fri, 10 Mar 2017 17:06:52 +0000 (17:06 +0000)]
[SelectionDAG] Make SelectionDAG aware of the known bits in UADDO and SADDO.
Summary: As per title. This is extracted from D29872 and I threw SADDO in.
Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30379
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297479
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Simon Pilgrim [Fri, 10 Mar 2017 16:59:43 +0000 (16:59 +0000)]
[X86][MMX] Add tests showing missed opportunities to use MMX fptosi conversions
If we are transferring XMM conversion results to MMX registers we could use the MMX equivalents (CVTPD2PI/CVTTPD2PI + CVTPS2PI/CVTTPS2PI) with affecting rounding/expections etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297476
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Simon Pilgrim [Fri, 10 Mar 2017 16:18:50 +0000 (16:18 +0000)]
[X86][MMX] Updated bad stack spill shift value test to actually show the problem
Cleaning up the ir had stopped showing the issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297475
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Simon Pilgrim [Fri, 10 Mar 2017 16:07:39 +0000 (16:07 +0000)]
[X86][MMX] Regenerate mmx bitcast tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297474
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Simon Pilgrim [Fri, 10 Mar 2017 15:53:41 +0000 (15:53 +0000)]
[X86][MMX] Add test showing bad stack spill of shift value
i32 is spilled to stack but 64-bit mmx is reloaded - leaving garbage in the other half of the register
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297471
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Simon Pilgrim [Fri, 10 Mar 2017 15:41:05 +0000 (15:41 +0000)]
[X86][MMX] Regenerate mmx load folding tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297470
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Simon Pilgrim [Fri, 10 Mar 2017 14:16:55 +0000 (14:16 +0000)]
Fix signed/unsigned comparison warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297460
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Simon Pilgrim [Fri, 10 Mar 2017 14:01:50 +0000 (14:01 +0000)]
Fix Wdocumentation warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297459
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Simon Pilgrim [Fri, 10 Mar 2017 13:44:32 +0000 (13:44 +0000)]
[APInt] Add APInt::insertBits() method to insert an APInt into a larger APInt
We currently have to insert bits via a temporary variable of the same size as the target with various shift/mask stages, resulting in further temporary variables, all of which require the allocation of memory for large APInts (MaskSizeInBits > 64).
This is another of the compile time issues identified in PR32037 (see also D30265).
This patch adds the APInt::insertBits() helper method which avoids the temporary memory allocation and masks/inserts the raw bits directly into the target.
Differential Revision: https://reviews.llvm.org/D30780
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297458
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Simon Dardis [Fri, 10 Mar 2017 13:27:14 +0000 (13:27 +0000)]
[mips][msa] Accept more values for constant splats
This patches teaches the MIPS backend to accept more values for constant
splats. Previously, only 10 bit signed immediates or values that could be
loaded using an ldi.[bhwd] instruction would be acceptted. This patch relaxes
that constraint so that any constant value that be splatted is accepted.
As a result, the constant pool is used less for vector operations, and the
suite of bit manipulation instructions b(clr|set|neg)i can now be used with
the full range of their immediate operand.
Reviewers: slthakur
Differential Revision: https://reviews.llvm.org/D30640
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297457
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Artyom Skrobov [Fri, 10 Mar 2017 13:21:12 +0000 (13:21 +0000)]
imm_comp_XFORM (defined in ARMInstrThumb.td) duplicates imm_not_XFORM (defined in ARMInstrInfo.td)
Reviewers: grosbach, rengolin, jmolloy
Reviewed By: jmolloy
Subscribers: aemerson, llvm-commits
Differential Revision: https://reviews.llvm.org/D30782
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297456
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Sanne Wouda [Fri, 10 Mar 2017 13:08:20 +0000 (13:08 +0000)]
[Assembler] Add location info to unary expressions.
Summary:
This is a continuation of D28861. Add an SMLoc to MCUnaryExpr such that
a better diagnostic can be given in case of an error in later stages of
assembling.
Reviewers: rengolin, grosbach, javed.absar, olista01
Reviewed By: olista01
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30581
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297454
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Artyom Skrobov [Fri, 10 Mar 2017 12:41:33 +0000 (12:41 +0000)]
Refactor the multiply-accumulate combines to act on
ARMISD::ADD[CE] nodes, instead of the generic ISD::ADD[CE].
Summary:
This allows for some simplification because the combines
are no longer limited to just one go at the node before
it gets legalized into an ARM target-specific one.
Reviewers: jmolloy, rogfer01
Subscribers: aemerson, llvm-commits, rengolin
Differential Revision: https://reviews.llvm.org/D30401
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297453
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George Rimar [Fri, 10 Mar 2017 10:31:56 +0000 (10:31 +0000)]
WholeProgramDevirt: Fixed compilation error under MSVS2015.
It was introduced in:
r296945
WholeProgramDevirt: Implement exporting for single-impl devirtualization.
---------------------
r296939
WholeProgramDevirt: Add any unsuccessful llvm.type.checked.load devirtualizations to the list of llvm.type.test users.
---------------------
Microsoft Visual Studio Community 2015
Version 14.0.23107.0 D14REL
Does not compile that code without additional brackets, showing multiple error like below:
WholeProgramDevirt.cpp(1216): error C2958: the left bracket '[' found at 'c:\access_softek\llvm\lib\transforms\ipo\wholeprogramdevirt.cpp(1216)' was not matched correctly
WholeProgramDevirt.cpp(1216): error C2143: syntax error: missing ']' before '}'
WholeProgramDevirt.cpp(1216): error C2143: syntax error: missing ';' before '}'
WholeProgramDevirt.cpp(1216): error C2059: syntax error: ']'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297451
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Simon Atanasyan [Fri, 10 Mar 2017 08:22:25 +0000 (08:22 +0000)]
[llvm-readobj] Support SHT_MIPS_DWARF section type flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297448
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Simon Atanasyan [Fri, 10 Mar 2017 08:22:20 +0000 (08:22 +0000)]
[MC] Set SHT_MIPS_DWARF section type for all .debug_* sections on MIPS
All MIPS .debug_* sections should be marked with ELF type SHT_MIPS_DWARF
accordingly the specification [1]. Also the same section type is assigned
to these sections by GNU tools.
[1] ftp.software.ibm.com/software/os390/czos/dwarf/mips_extensions.pdf
Differential Revision: https://reviews.llvm.org/D29789
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297447
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Simon Atanasyan [Fri, 10 Mar 2017 08:22:13 +0000 (08:22 +0000)]
[MC] Accept a numeric value as an ELF section header's type
GAS supports specification of section header's type using a numeric
value [1]. This patch brings the same functionality to LLVM. That allows
to setup some target-specific section types belong to the SHT_LOPROC -
SHT_HIPROC range. If we attempt to print unknown section type, MCSectionELF
class shows an error message. It's better than print sole '@' sign
without any section type name.
In case of MIPS, example of such section's type is SHT_MIPS_DWARF.
Without the patch we will have to implement some workarounds
in probably not-MIPS-specific part of code base to convert SHT_MIPS_DWARF
to the @progbits while printing assembly and to assign SHT_MIPS_DWARF for
@progbits sections named .debug_* if we encounter such section in
an input assembly.
[1] https://sourceware.org/binutils/docs/as/Section.html
Differential Revision: https://reviews.llvm.org/D29719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297446
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Artyom Skrobov [Fri, 10 Mar 2017 07:40:27 +0000 (07:40 +0000)]
For Thumb1, lower ADDC/ADDE/SUBC/SUBE via the glueless ARMISD nodes,
same as already done for ARM and Thumb2.
Reviewers: jmolloy, rogfer01, efriedma
Subscribers: aemerson, llvm-commits, rengolin
Differential Revision: https://reviews.llvm.org/D30400
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297443
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Yaron Keren [Fri, 10 Mar 2017 07:09:20 +0000 (07:09 +0000)]
Implement getPassName() for IR printing passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297442
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Matt Arsenault [Fri, 10 Mar 2017 05:25:49 +0000 (05:25 +0000)]
AMDGPU: Fix insertion point when reducing load intrinsics
The insertion point may be later than the next instruction,
so it is necessary to set it when replacing the call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297439
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Daniel Berlin [Fri, 10 Mar 2017 04:54:10 +0000 (04:54 +0000)]
Move memory coercion functions from GVN.cpp to VNCoercion.cpp so they can be shared between GVN and NewGVN.
Summary:
These are the functions used to determine when values of loads can be
extracted from stores, etc, and to perform the necessary insertions to
do this. There are no changes to the functions themselves except
reformatting, and one case where memdep was informed of a removed load
(which was pushed into the caller).
Reviewers: davide
Subscribers: mgorny, llvm-commits, Prazek
Differential Revision: https://reviews.llvm.org/D30478
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297438
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Dehao Chen [Fri, 10 Mar 2017 01:44:37 +0000 (01:44 +0000)]
Do not use branch metadata to check if a basic block is hot.
Summary: We should not use that to check basic block hotness as optimization may mess it up.
Reviewers: eraman
Reviewed By: eraman
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30800
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297437
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Sanjay Patel [Fri, 10 Mar 2017 00:55:29 +0000 (00:55 +0000)]
[x86] add tests for vec div/rem with 0 element in divisor; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297433
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Matt Arsenault [Fri, 10 Mar 2017 00:47:35 +0000 (00:47 +0000)]
PatternMatch; Add m_ZExtOrSExt matcher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297432
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Daniel Berlin [Fri, 10 Mar 2017 00:32:33 +0000 (00:32 +0000)]
NewGVN: Rewrite DCE during elimination so we do it as well as old GVN did.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297428
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Daniel Berlin [Fri, 10 Mar 2017 00:32:26 +0000 (00:32 +0000)]
NewGVN: Rename a few things for clarity
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297427
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Ahmed Bougacha [Fri, 10 Mar 2017 00:25:44 +0000 (00:25 +0000)]
[GlobalISel] Use ImmutableCallSite instead of templates. NFC.
ImmutableCallSite abstracts away CallInst and InvokeInst. Use it!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297426
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Ahmed Bougacha [Fri, 10 Mar 2017 00:25:35 +0000 (00:25 +0000)]
[GlobalISel] Fallback when failing to translate invoke.
We unintentionally stopped falling back in r293670.
While there, change an unusual construct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297425
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Daniel Berlin [Fri, 10 Mar 2017 00:25:26 +0000 (00:25 +0000)]
Add support for DenseMap/DenseSet count and find using const pointers
Summary:
Similar to SmallPtrSet, this makes find and count work with both const
referneces and const pointers.
Reviewers: dblaikie
Subscribers: llvm-commits, mzolotukhin
Differential Revision: https://reviews.llvm.org/D30713
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297424
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Davide Italiano [Thu, 9 Mar 2017 23:48:58 +0000 (23:48 +0000)]
[Unittests] Fix a build failure with clang 3.8. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297423
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Tim Northover [Thu, 9 Mar 2017 23:36:26 +0000 (23:36 +0000)]
GlobalISel: support trivial inlineasm calls.
They're used for nefarious purposes by ObjC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297422
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Eli Friedman [Thu, 9 Mar 2017 23:33:36 +0000 (23:33 +0000)]
Refactor alias check from MISched into common helper. NFC.
Differential Revision: https://reviews.llvm.org/D30598
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297421
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Dan Gohman [Thu, 9 Mar 2017 23:08:21 +0000 (23:08 +0000)]
[WebAssembly] Fix the opcode numbers for floating-point le and gt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297420
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Amaury Sechet [Thu, 9 Mar 2017 22:47:00 +0000 (22:47 +0000)]
[DAGCombiner] Do various combine on uaddo.
Summary: This essentially does the same transform as for ADC.
Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30417
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297416
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Krzysztof Parzyszek [Thu, 9 Mar 2017 22:02:14 +0000 (22:02 +0000)]
[Hexagon] Fixes to the bitsplit generation
- Fix the insertion point, which occasionally could have been incorrect.
- Avoid creating multiple bitsplits with the same operands, if an old one
could be reused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297414
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Tim Northover [Thu, 9 Mar 2017 22:00:39 +0000 (22:00 +0000)]
GlobalISel: inform FrameLowering when we emit a function call.
Amongst other things (I expect) this is necessary to ensure decent backtraces
when an "unreachable" is involved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297413
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Sanjay Patel [Thu, 9 Mar 2017 21:56:03 +0000 (21:56 +0000)]
[InstSimplify] allow folds for bool vector div/rem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297411
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Tim Northover [Thu, 9 Mar 2017 21:12:06 +0000 (21:12 +0000)]
GlobalISel: put debug info for static allocas in the MachineFunction.
The good reason to do this is that static allocas are pretty simple to handle
(especially at -O0) and avoiding tracking DBG_VALUEs throughout the pipeline
should give some kind of performance benefit.
The bad reason is that the debug pipeline is an unholy mess of implicit
contracts, where determining whether "DBG_VALUE %reg, imm" actually implies a
load or not involves the services of at least 3 soothsayers and the sacrifice
of at least one chicken. And it still gets it wrong if the variable is at SP
directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297410
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Sanjay Patel [Thu, 9 Mar 2017 20:42:30 +0000 (20:42 +0000)]
[ConstantFold] vector div/rem with any zero element in divisor is undef
Follow-up for:
https://reviews.llvm.org/D30665
https://reviews.llvm.org/rL297390
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297409
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Matt Arsenault [Thu, 9 Mar 2017 20:34:27 +0000 (20:34 +0000)]
AMDGPU: Support for SimplifyDemandedVectorElts for load intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297408
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Sanjay Patel [Thu, 9 Mar 2017 20:31:20 +0000 (20:31 +0000)]
[InstSimplify] add tests for vector constant folding div/rem-by-0; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297407
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Yaxun Liu [Thu, 9 Mar 2017 20:04:50 +0000 (20:04 +0000)]
AMDGPU: Add GCCBuiltin for ds_permute ds_bpermute
Differential Revision: https://reviews.llvm.org/D30580
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297406
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Amaury Sechet [Thu, 9 Mar 2017 19:28:00 +0000 (19:28 +0000)]
[DAGCombiner] Do various combine on usubo.
Summary: This essentially does the same transform as for SUBC.
Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30437
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297404
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Tom Stellard [Thu, 9 Mar 2017 19:24:07 +0000 (19:24 +0000)]
CMake: Don't install llvm-tblgen twice
Summary:
The add_tablegen macros defines its own install target, and it was also calling
add_llvm_utility which adds another install target.
Configuring with -DLLVM_TOOLS_INSTALL_DIR set to something other than
'bin' along with -DLLVM_INSTALL_UTILS=ON was causing llvm-tablgen
to be installed to two separate directories.
Reviewers: beanz, hans
Reviewed By: beanz
Subscribers: llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D30656
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297403
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Krzysztof Parzyszek [Thu, 9 Mar 2017 19:14:23 +0000 (19:14 +0000)]
[Hexagon] Refactor the DAG preprocessing code, NFC
Extract individual transformations into their own functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297401
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Rong Xu [Thu, 9 Mar 2017 19:08:55 +0000 (19:08 +0000)]
Minor format change. nfc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297400
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Rong Xu [Thu, 9 Mar 2017 19:03:57 +0000 (19:03 +0000)]
[PGO] Refactor profile dumping function for ease of adding other profile kind
Refactor the dumping function so that we can add other value profile kind easily.
Differential Revision: https://reviews.llvm.org/D30752
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297399
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Jan Sjodin [Thu, 9 Mar 2017 18:25:07 +0000 (18:25 +0000)]
Add front() method to SetVector.
Differential Revision: https://reviews.llvm.org/D27262
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297398
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Artem Belevich [Thu, 9 Mar 2017 17:59:04 +0000 (17:59 +0000)]
[FileCheck] Added --enable-var-scope option to enable scope for regex variables.
If `--enable-var-scope` is in effect, variables with names that
start with `$` are considered to be global. All other variables are
local. All local variables get undefined at the beginning of each
CHECK-LABEL block. Global variables are not affected by CHECK-LABEL.
This makes it easier to ensure that individual tests are not affected
by variables set in preceding tests.
Differential Revision: https://reviews.llvm.org/D30749
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297396
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Krzysztof Parzyszek [Thu, 9 Mar 2017 17:05:11 +0000 (17:05 +0000)]
[Hexagon] Add -mhvx option to the Hexagon backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297393
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Krzysztof Parzyszek [Thu, 9 Mar 2017 16:29:30 +0000 (16:29 +0000)]
[Hexagon] Propagate zext of i1 into arithmetic code in selection DAG
(op ... (zext i1 c) ...) -> (select c (op ... 1 ...),
(op ... 0 ...))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297391
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Sanjay Patel [Thu, 9 Mar 2017 16:20:52 +0000 (16:20 +0000)]
[InstSimplify] vector div/rem with any zero element in divisor is undef
This was suggested as a DAG simplification in the review for rL297026 :
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20170306/435253.html
...but let's start with IR since we have actual docs for IR (LangRef).
Differential Revision:
https://reviews.llvm.org/D30665
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297390
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Sam Parker [Thu, 9 Mar 2017 15:14:32 +0000 (15:14 +0000)]
[ARM] Remove t2xtpk feature from tests
I previously removed the T2XtPk feature from the ARM backend, but it
looks like I missed some of the tests that were using the feature.
Differential Revision: https://reviews.llvm.org/D30778
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297386
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Sanjay Patel [Thu, 9 Mar 2017 15:02:25 +0000 (15:02 +0000)]
[DAG] recognize div/rem by 0 as undef before trying constant folding
As discussed in the review thread for rL297026, this is actually 2 changes that
would independently fix all of the test cases in the patch:
1. Return undef in FoldConstantArithmetic for div/rem by 0.
2. Move basic undef simplifications for div/rem (simplifyDivRem()) before
foldBinopIntoSelect() as a matter of efficiency.
I will handle the case of vectors with any zero element as a follow-up. That change
is the DAG sibling for D30665 + adding a check of vector elements to FoldConstantVectorArithmetic().
I'm deleting the test for PR30693 because it does not test for the actual bug any more
(dangers of using bugpoint).
Differential Revision:
https://reviews.llvm.org/D30741
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297384
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Simon Pilgrim [Thu, 9 Mar 2017 14:06:39 +0000 (14:06 +0000)]
[X86][SSE] Speed up constant pool shuffle mask decoding with direct copy (PR32037).
If the constants are already the correct size, we can copy them directly into the shuffle mask.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297381
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Simon Dardis [Thu, 9 Mar 2017 14:03:26 +0000 (14:03 +0000)]
[mips] Revert fixes for PR32020.
The fix introduces segfaults and clobbers the value to be stored when
the atomic sequence loops.
Revert "[Target/MIPS] Kill dead code, no functional change intended."
This reverts commit r296153.
Revert "Recommit "[mips] Fix atomic compare and swap at O0.""
This reverts commit r296134.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297380
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Simon Pilgrim [Thu, 9 Mar 2017 13:57:04 +0000 (13:57 +0000)]
Fixed typos in comments. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297379
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Nuno Lopes [Thu, 9 Mar 2017 13:43:31 +0000 (13:43 +0000)]
fix build on Cygwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297378
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Joey Gouly [Thu, 9 Mar 2017 13:38:06 +0000 (13:38 +0000)]
[SelectionDAG] Make SelectCode return void
SelectCode has been returning nullptr since
182dac0 ("SDAG: Make
SelectCodeCommon return void", 2016-05-10). Make SelectCode also
return void instead, as all callers have been updated.
Patch by Sven van Haastregt.
Review: https://reviews.llvm.org/D30497
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297377
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Sjoerd Meijer [Thu, 9 Mar 2017 13:28:37 +0000 (13:28 +0000)]
[ARM] remove FIXMEs and add vcmp MC test
Minor cleanup in ARMInstrVFP.td: removed some FIXMEs and added a MC test for
vcmp that was actually missing.
Differential Revision: https://reviews.llvm.org/D30745
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297376
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Chandler Carruth [Thu, 9 Mar 2017 11:35:40 +0000 (11:35 +0000)]
[PM/Inliner] Make the new PM's inliner process call edges across an
entire SCC before iterating on newly-introduced call edges resulting
from any inlined function bodies.
This more closely matches the behavior of the old PM's inliner. While it
wasn't really clear to me initially, this behavior is actually essential
to the inliner behaving reasonably in its current design.
Because the inliner is fundamentally a bottom-up inliner and all of its
cost modeling is designed around that it often runs into trouble within
an SCC where we don't have any meaningful bottom-up ordering to use. In
addition to potentially cyclic, infinite inlining that we block with the
inline history mechanism, it can also take seemingly simple call graph
patterns within an SCC and turn them into *insanely* large functions by
accidentally working top-down across the SCC without any of the
threshold limitations that traditional top-down inliners use.
Consider this diabolical monster.cpp file that Richard Smith came up
with to help demonstrate this issue:
```
template <int N> extern const char *str;
void g(const char *);
template <bool K, int N> void f(bool *B, bool *E) {
if (K)
g(str<N>);
if (B == E)
return;
if (*B)
f<true, N + 1>(B + 1, E);
else
f<false, N + 1>(B + 1, E);
}
template <> void f<false, MAX>(bool *B, bool *E) { return f<false, 0>(B, E); }
template <> void f<true, MAX>(bool *B, bool *E) { return f<true, 0>(B, E); }
extern bool *arr, *end;
void test() { f<false, 0>(arr, end); }
```
When compiled with '-DMAX=N' for various values of N, this will create an SCC
with a reasonably large number of functions. Previously, the inliner would try
to exhaust the inlining candidates in a single function before moving on. This,
unfortunately, turns it into a top-down inliner within the SCC. Because our
thresholds were never built for that, we will incrementally decide that it is
always worth inlining and proceed to flatten the entire SCC into that one
function.
What's worse, we'll then proceed to the next function, and do the exact same
thing except we'll skip the first function, and so on. And at each step, we'll
also make some of the constant factors larger, which is awesome.
The fix in this patch is the obvious one which makes the new PM's inliner use
the same technique used by the old PM: consider all the call edges across the
entire SCC before beginning to process call edges introduced by inlining. The
result of this is essentially to distribute the inlining across the SCC so that
every function incrementally grows toward the inline thresholds rather than
allowing the inliner to grow one of the functions vastly beyond the threshold.
The code for this is a bit awkward, but it works out OK.
We could consider in the future doing something more powerful here such as
prioritized order (via lowest cost and/or profile info) and/or a code-growth
budget per SCC. However, both of those would require really substantial work
both to design the system in a way that wouldn't break really useful
abstraction decomposition properties of the current inliner and to be tuned
across a reasonably diverse set of code and workloads. It also seems really
risky in many ways. I have only found a single real-world file that triggers
the bad behavior here and it is generated code that has a pretty pathological
pattern. I'm not worried about the inliner not doing an *awesome* job here as
long as it does *ok*. On the other hand, the cases that will be tricky to get
right in a prioritized scheme with a budget will be more common and idiomatic
for at least some frontends (C++ and Rust at least). So while these approaches
are still really interesting, I'm not in a huge rush to go after them. Staying
even closer to the existing PM's behavior, especially when this easy to do,
seems like the right short to medium term approach.
I don't really have a test case that makes sense yet... I'll try to find a
variant of the IR produced by the monster template metaprogram that is both
small enough to be sane and large enough to clearly show when we get this wrong
in the future. But I'm not confident this exists. And the behavior change here
*should* be unobservable without snooping on debug logging. So there isn't
really much to test.
The test case updates come from two incidental changes:
1) We now visit functions in an SCC in the opposite order. I don't think there
really is a "right" order here, so I just update the test cases.
2) We no longer compute some analyses when an SCC has no call instructions that
we consider for inlining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297374
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Simon Dardis [Thu, 9 Mar 2017 11:19:48 +0000 (11:19 +0000)]
[mips] Fix return lowering
Fix a machine verifier issue where a instruction was using a invalid
register. The return pseudo is expanded and has the return address
register added to it. The return register may have been spuriously
mark as killed earlier.
This partially resolves PR/27458
Thanks to Quentin Colombet for reporting the issue!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297372
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Adam Nemet [Thu, 9 Mar 2017 06:10:27 +0000 (06:10 +0000)]
[SSP] In opt remarks, stream Function directly
With this, it shows up as an attribute in YAML and non-printable characters
are properly removed by GlobalValue::getRealLinkageName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297362
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Adam Nemet [Thu, 9 Mar 2017 05:48:03 +0000 (05:48 +0000)]
[SLP] Mark values in Dot that need to be extracted
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297361
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Matt Arsenault [Thu, 9 Mar 2017 01:36:39 +0000 (01:36 +0000)]
DAG: Check no signed zeros instead of unsafe math attribute
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297354
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Peter Collingbourne [Thu, 9 Mar 2017 01:11:15 +0000 (01:11 +0000)]
WholeProgramDevirt: Implement importing for uniform ret val opt.
Differential Revision: https://reviews.llvm.org/D29854
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297350
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Konstantin Zhuravlyov [Thu, 9 Mar 2017 00:21:36 +0000 (00:21 +0000)]
AMDGPU: add missing lit.local.cfg to test/DebugInfo/AMDGPU
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297334
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Peter Collingbourne [Thu, 9 Mar 2017 00:21:25 +0000 (00:21 +0000)]
WholeProgramDevirt: Implement importing for single-impl devirtualization.
Differential Revision: https://reviews.llvm.org/D29844
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297333
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Teresa Johnson [Thu, 9 Mar 2017 00:19:49 +0000 (00:19 +0000)]
Perform symbol binding for .symver versioned symbols
Summary:
In a .symver assembler directive like:
.symver name, name2@@nodename
"name2@@nodename" should get the same symbol binding as "name".
While the ELF object writer is updating the symbol binding for .symver
aliases before emitting the object file, not doing so when the module
inline assembly is handled by the RecordStreamer is causing the wrong
behavior in *LTO mode.
E.g. when "name" is global, "name2@@nodename" must also be marked as
global. Otherwise, the symbol is skipped when iterating over the LTO
InputFile symbols (InputFile::Symbol::shouldSkip). So, for example,
when performing any *LTO via the gold-plugin, the versioned symbol
definition is not recorded by the plugin and passed back to the
linker. If the object was in an archive, and there were no other symbols
needed from that object, the object would not be included in the final
link and references to the versioned symbol are undefined.
The llvm-lto2 tests added will give an error about an unused symbol
resolution without the fix.
Reviewers: rafael, pcc
Reviewed By: pcc
Subscribers: mehdi_amini, llvm-commits
Differential Revision: https://reviews.llvm.org/D30485
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297332
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Changpeng Fang [Thu, 9 Mar 2017 00:07:00 +0000 (00:07 +0000)]
AMDGPU/SI: Disable unrolling in the loop vectorizer if the loop is not vectorized.
Reviewers:
arsenm
Differential Revision:
http://reviews.llvm.org/D30719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297328
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Evgeniy Stepanov [Thu, 9 Mar 2017 00:03:37 +0000 (00:03 +0000)]
Don't merge global constants with non-dbg metadata.
!type metadata can not be dropped. An alternative to this is adding
!type metadata from the replaced globals to the replacement, but that
may weaken type tests and make them slower at the same time.
The merged global gets !dbg metadata from replaced globals, and can
end up with multiple debug locations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297327
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Konstantin Zhuravlyov [Wed, 8 Mar 2017 23:55:44 +0000 (23:55 +0000)]
[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types
Differential Revision: https://reviews.llvm.org/D29670
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297320
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Jessica Paquette [Wed, 8 Mar 2017 23:55:33 +0000 (23:55 +0000)]
[Outliner] Fix memory leak in suffix tree.
This commit changes the BumpPtrAllocator for suffix tree nodes to a SpecificBumpPtrAllocator.
Before, node construction was leaking memory because of the DenseMap in SuffixTreeNodes.
Changing this to a SpecificBumpPtrAllocator allows this memory to properly be released.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297319
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Javed Absar [Wed, 8 Mar 2017 23:01:50 +0000 (23:01 +0000)]
[ConstantFold] Fix defect in constant folding computation for GEP
When the array indexes are all determined by GVN to be constants,
a call is made to constant-folding to optimize/simplify the address
computation.
The constant-folding, however, makes a mistake in that it sometimes reads
back stale Idxs instead of NewIdxs, that it re-computed in previous iteration.
This leads to incorrect addresses coming out of constant-folding to GEP.
A test case is included. The error is only triggered when indexes have particular
patterns that the stale/new index updates interplay matters.
Reviewers: Daniel Berlin
Differential Revision: https://reviews.llvm.org/D30642
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297317
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Zachary Turner [Wed, 8 Mar 2017 22:49:32 +0000 (22:49 +0000)]
[Support] Add llvm::sys::fs::remove_directories.
We already have a function create_directories() which can create
an entire tree, and remove() which can remove an empty directory,
but we do not have remove_directories() which can remove an entire
tree. This patch adds such a function.
Because removing a directory tree can have dangerous consequences
when the tree contains a directory symlink, the patch here updates
the existing directory_iterator construct to optionally not follow
symlinks (previously it would always follow symlinks). The delete
algorithm uses this flag so that for symlinks, only the links are
removed, and not the targets.
On Windows this is implemented with SHFileOperation, which also
does not recurse into symbolic links or junctions.
Differential Revision: https://reviews.llvm.org/D30676
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297314
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Jordan Rose [Wed, 8 Mar 2017 21:53:12 +0000 (21:53 +0000)]
Add red zones to BumpPtrAllocator under ASan
To help catch buffer overruns, this patch changes BumpPtrAllocator to
insert an extra unused byte between allocations when building with
ASan. SpecificBumpPtrAllocator opts out of this behavior, since it
needs to destroy its items later by walking the allocated memory.
Reviewed by Pete Cooper.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297310
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George Burgess IV [Wed, 8 Mar 2017 21:28:19 +0000 (21:28 +0000)]
[MemCpyOpt] clang-format + trim the legacy pass. NFC.
None of the declarations below `// Helper functions` seem to have
definitions anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297309
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Tim Northover [Wed, 8 Mar 2017 18:49:54 +0000 (18:49 +0000)]
GlobalISel: correctly handle trivial fcmp predicates.
It makes sense to only do them once in IRTranslator rather than making everyone
deal with them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297304
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Adam Nemet [Wed, 8 Mar 2017 18:47:50 +0000 (18:47 +0000)]
[SLP] Visualize SLP trees with -view-slp-tree
Analyzing larger trees is extremely difficult with the current debug output so
this adds GraphTraits and DOTGraphTraits on top of the VectorizableTree data
structure. We can now display the SLP trees with Graphviz as in
https://reviews.llvm.org/
F3132765.
I decorated the graph where a value needs to be gathered for one reason or
another. These are the red nodes.
There are other improvement I am planning to make as I work through my case
here. For example, I would also like to mark nodes that need to be extracted.
Differential Revision: https://reviews.llvm.org/D30731
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297303
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Matthew Simpson [Wed, 8 Mar 2017 18:18:20 +0000 (18:18 +0000)]
[LV] Select legal insert point when fixing first-order recurrences
Because IRBuilder performs constant-folding, it's not guaranteed that an
instruction in the original loop map to an instruction in the vector loop. It
could map to a constant vector instead. The handling of first-order recurrences
was incorrectly making this assumption when setting the IRBuilder's insert
point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297302
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Volkan Keles [Wed, 8 Mar 2017 18:09:14 +0000 (18:09 +0000)]
[GlobalISel] Add default action for G_FNEG
Summary: rL297171 introduced G_FNEG for floating-point negation instruction and IRTranslator started to translate `FSUB -0.0, X` to `FNEG X`. This patch adds a default action for G_FNEG to avoid breaking existing targets.
Reviewers: qcolombet, ab, kristof.beyls, t.p.northover, aditya_nandakumar, dsanders
Reviewed By: qcolombet
Subscribers: dberris, rovka, llvm-commits
Differential Revision: https://reviews.llvm.org/D30721
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297301
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Zachary Turner [Wed, 8 Mar 2017 17:56:08 +0000 (17:56 +0000)]
Resubmit FileSystem changes.
This was originall reverted due to some test failures in
ModuleCache and TestCompDirSymlink. These issues have all
been resolved and the code now passes all tests.
Differential Revision: https://reviews.llvm.org/D30698
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297300
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Sanjay Patel [Wed, 8 Mar 2017 17:19:56 +0000 (17:19 +0000)]
[x86] regenerate checks; NFC
This test could be reduced? The check fails for a seemingly unrelated change,
so I'm adding full checks to see what is happening.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297296
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Matthew Simpson [Wed, 8 Mar 2017 17:03:38 +0000 (17:03 +0000)]
[LV] Make the test case for PR30183 less fragile
This patch also renames the PR number the test points to. The previous
reference was PR29559, but that bug was somehow deleted and recreated under
PR30183.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297295
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Matthew Simpson [Wed, 8 Mar 2017 16:55:34 +0000 (16:55 +0000)]
[LV] Add missing check labels to tests and reformat
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297294
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Krzysztof Parzyszek [Wed, 8 Mar 2017 15:46:28 +0000 (15:46 +0000)]
[Hexagon] Use correct offset when extracting from the high word
When extracting a bitfield from the high register in a register pair,
the final offset should be relative to the high register (for 32-bit
extracts).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297288
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Daniel Cederman [Wed, 8 Mar 2017 15:23:10 +0000 (15:23 +0000)]
[Sparc] Check register use with isPhysRegUsed() instead of reg_nodbg_empty()
Summary: By using reg_nodbg_empty() to determine if a function can be
treated as a leaf function or not, we miss the case when the register
pair L0_L1 is used but not L0 by itself. This has the effect that
use_all_i32_regs(), a test in reserved-regs.ll which tries to use all
registers, gets treated as a leaf function.
Reviewers: jyknight, venkatra
Reviewed By: jyknight
Subscribers: davide, RKSimon, sepavloff, llvm-commits
Differential Revision: https://reviews.llvm.org/D27089
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297285
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Jun Bum Lim [Wed, 8 Mar 2017 15:22:30 +0000 (15:22 +0000)]
[JumpThread] Use AA in SimplifyPartiallyRedundantLoad()
Summary: Use AA when scanning to find an available load value.
Reviewers: rengolin, mcrosier, hfinkel, trentxintong, dberlin
Reviewed By: rengolin, dberlin
Subscribers: aemerson, dberlin, llvm-commits
Differential Revision: https://reviews.llvm.org/D30352
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297284
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Sanjay Patel [Wed, 8 Mar 2017 15:02:23 +0000 (15:02 +0000)]
[InstCombine] avoid crashing on shuffle shrinkage when input type is not same as result type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297280
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John Brawn [Wed, 8 Mar 2017 12:49:18 +0000 (12:49 +0000)]
[ARM] Split up lsl-zero test into two tests
On Windows stderr and stdout happen to get interleaved in a way that causes the
test to fail, so split it up into a test that checks for errors and a test that
doesn't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297273
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Sam Parker [Wed, 8 Mar 2017 09:56:22 +0000 (09:56 +0000)]
[LoopRotate] Propagate dbg.value intrinsics
Recommitting patch which was previously reverted in r297159. These
changes should address the casting issues.
The original patch enables dbg.value intrinsics to be attached to
newly inserted PHI nodes.
Differential Review: https://reviews.llvm.org/D30701
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297269
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Simon Pilgrim [Wed, 8 Mar 2017 09:36:39 +0000 (09:36 +0000)]
[X86][SSE] combineX86ShufflesRecursively can handle shuffle masks up to 64 elements wide
By defining the mask types as SmallVector<int, 16> we were causing a lot of unnecessary heap usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297267
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Jonas Hahnfeld [Wed, 8 Mar 2017 08:36:21 +0000 (08:36 +0000)]
[Support] Remove unit test for fs::is_local
rL295768 introduced this test that fails if LLVM is built and tested on
an NFS share. Delete the test as discussed on the corresponing commit
thread. The only feasible solution would have been to introduce
environment variables and to en/disable the test conditionally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297260
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Amjad Aboud [Wed, 8 Mar 2017 05:09:10 +0000 (05:09 +0000)]
[SLP] Fixed non-deterministic behavior in Loop Vectorizer.
Differential Revision: https://reviews.llvm.org/D30638
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297257
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Tim Shen [Wed, 8 Mar 2017 02:41:35 +0000 (02:41 +0000)]
Revert "Revert "[PowerPC][ELFv2ABI] Allocate parameter area on-demand to reduce stack frame size""
After inspection, it's an UB in our code base. Someone cast a var-arg
function pointer to a non-var-arg one. :/
Re-commit r296771 to continue testing on the patch.
Sorry for the trouble!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297256
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Zachary Turner [Wed, 8 Mar 2017 01:57:40 +0000 (01:57 +0000)]
Work around an ICE on MSVC 2017.
MSVC 2017 was released today, and I found one bug in the
compiler which prevents a successful build of LLVM. This
patch works around the bug in a fairly benign way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297255
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Sebastian Pop [Wed, 8 Mar 2017 01:54:50 +0000 (01:54 +0000)]
Handle UnreachableInst in isGuaranteedToTransferExecutionToSuccessor
A block with an UnreachableInst does not transfer execution to a successor.
The problem was exposed by GVN-hoist. This patch fixes bug 32153.
Patch by Aditya Kumar.
Differential Revision: https://reviews.llvm.org/D30667
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297254
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