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6 years ago[ADCE][Dominators] Reapply: Teach ADCE to preserve dominators
Jakub Kuderski [Tue, 22 Aug 2017 16:30:21 +0000 (16:30 +0000)]
[ADCE][Dominators] Reapply: Teach ADCE to preserve dominators

Summary:
This patch teaches ADCE to preserve both DominatorTrees and PostDominatorTrees.

This is reapplies the original patch r311057 that was reverted in r311381.
The previous version wasn't using the batch update api for updating dominators,
which in vary rare cases caused assertion failures.

This also fixes PR34258.

Reviewers: dberlin, chandlerc, sanjoy, davide, grosser, brzycki

Reviewed By: davide

Subscribers: grandinj, zhendongsu, llvm-commits, david2050

Differential Revision: https://reviews.llvm.org/D35869

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311467 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Debug info] Add new DbgValues after looping over DAG
Jonas Devlieghere [Tue, 22 Aug 2017 16:28:07 +0000 (16:28 +0000)]
[Debug info] Add new DbgValues after looping over DAG

I was contacted by Jesper Antonsson from Ericsson who ran into problems
with r311181 in their test suites with for an out-of-tree target.
Because of the latter I don't have a reproducer, but we definitely don't
want to modify the data structure on which we are iterating inside the
loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311466 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] auto-generate full checks; NFC
Sanjay Patel [Tue, 22 Aug 2017 16:27:00 +0000 (16:27 +0000)]
[x86] auto-generate full checks; NFC

I don't see anything Darwin-specific here, so I made the target generic x86-64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311465 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] simplify runs and auto-generate full checks
Sanjay Patel [Tue, 22 Aug 2017 16:21:45 +0000 (16:21 +0000)]
[x86] simplify runs and auto-generate full checks

I've replaced the two OS-specific runs with a generic run because
there's no functional difference in the resulting output that
we're checking. Also, the script still doesn't work with a Win
target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311463 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoEmit section information for extern variables
Erich Keane [Tue, 22 Aug 2017 15:30:43 +0000 (15:30 +0000)]
Emit section information for extern variables

Update IR generated to retain section information for external declarations.
This is related to https://reviews.llvm.org/D36487

Patch By: eandrews
Differential Revision: https://reviews.llvm.org/D36712

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311459 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM][AArch64] Add Armv8.3-a unittests
Sam Parker [Tue, 22 Aug 2017 12:46:33 +0000 (12:46 +0000)]
[ARM][AArch64] Add Armv8.3-a unittests

Add Armv8.3-A to the architecture to the TargetParser unittests.

Differential Revision: https://reviews.llvm.org/D36748

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311450 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM][AArch64] v8.3-A Javascript Conversion
Sam Parker [Tue, 22 Aug 2017 11:08:21 +0000 (11:08 +0000)]
[ARM][AArch64] v8.3-A Javascript Conversion

Armv8.3-A adds instructions that convert a double-precision floating
point number to a signed 32-bit integer with round towards zero,
designed for improving Javascript performance.

Differential Revision: https://reviews.llvm.org/D36785

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311448 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Avoid creating duplicate ANDs in SelectionDAG
Renato Golin [Tue, 22 Aug 2017 11:02:45 +0000 (11:02 +0000)]
[ARM] Avoid creating duplicate ANDs in SelectionDAG

When expanding a BRCOND into a BR_CC, do not create an AND 1
if one already exists.

Review: D36705

Patch by Joel Galenson <jgalenson@google.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311447 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Call setBooleanContents(ZeroOrOneBooleanContent)
Renato Golin [Tue, 22 Aug 2017 11:02:37 +0000 (11:02 +0000)]
[ARM] Call setBooleanContents(ZeroOrOneBooleanContent)

The ARM backend should call setBooleanContents so that it can
use known bits to make some optimizations.

Review: D35821

Patch by Joel Galenson <jgalenson@google.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311446 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAG] Add getNode debug messages
Sjoerd Meijer [Tue, 22 Aug 2017 10:43:51 +0000 (10:43 +0000)]
[SelectionDAG] Add getNode debug messages

This adds debug messages to various functions that create new SDValue nodes.
This is e.g. useful to have during legalization, as otherwise it can prints
legalization info of nodes that did not appear in the dumps before.

Differential Revision: https://reviews.llvm.org/D36984

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311444 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Cleanup of HasFullFP16 argument. NFC.
Sjoerd Meijer [Tue, 22 Aug 2017 09:21:08 +0000 (09:21 +0000)]
[AArch64] Cleanup of HasFullFP16 argument. NFC.

This is a clean up of commit r311154; it's not necessary to pass HasFullFP16 as
an argument, instead just query the DAG.

Differential Revision: https://reviews.llvm.org/D36978

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311438 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix a typo in r311435.
Chandler Carruth [Tue, 22 Aug 2017 09:20:52 +0000 (09:20 +0000)]
Fix a typo in r311435.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311437 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse report_fatal_error for unsupported calling conventions
Alex Bradbury [Tue, 22 Aug 2017 09:11:41 +0000 (09:11 +0000)]
Use report_fatal_error for unsupported calling conventions

The calling convention can be specified by the user in IR. Failing to support
a particular calling convention isn't a programming error, and so relying on
llvm_unreachable to catch and report an unsupported calling convention is not
appropriate.

Differential Revision: https://reviews.llvm.org/D36830

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311435 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[lib/Analysis] - Mark personality functions as live.
George Rimar [Tue, 22 Aug 2017 08:50:56 +0000 (08:50 +0000)]
[lib/Analysis] - Mark personality functions as live.

This is PR33245.

Case I am fixing is next:
Imagine we have 2 BC files, one defines and uses personality routine,
second has only declaration and also uses it.

Previously algorithm computing dead symbols (llvm::computeDeadSymbols) did
not know about personality routines and leaved them dead even if function that
has routine was live.

As a result thinLTOInternalizeAndPromoteGUID() method changed binding for
such symbol to local. Later when LLD tried to link these objects it failed
because one object had undefined global symbol for routine and second
object contained local definition instead of global.

Patch set the live root flag on the corresponding FunctionSummary
for personality routines when we build the per-module summaries
during the compile step.

Differential revision: https://reviews.llvm.org/D36834

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311432 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Prevent several calls to ISD::isConstantSplatVector from returning a narrower...
Craig Topper [Tue, 22 Aug 2017 05:40:17 +0000 (05:40 +0000)]
[X86] Prevent several calls to ISD::isConstantSplatVector from returning a narrower APInt than the original scalar type

ISD::isConstantSplatVector can shrink to the smallest splat width. But we don't check the size of the resulting APInt at all. This can cause us to misinterpret the results.

This patch just adds a flag to prevent the APInt from changing width.

Fixes PR34271.

Differential Revision: https://reviews.llvm.org/D36996

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311429 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIntegrate manifest merging library into LLD.
Eric Beckmann [Tue, 22 Aug 2017 03:15:28 +0000 (03:15 +0000)]
Integrate manifest merging library into LLD.

Summary: Now that the llvm-mt manifest merging libraries are complete, we may use them to merge manifests instead of needing to shell out to mt.exe.

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D36255

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311424 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agodsymutil: don't copy compile units without children from PCM files
Adrian Prantl [Tue, 22 Aug 2017 01:10:48 +0000 (01:10 +0000)]
dsymutil: don't copy compile units without children from PCM files

rdar://problem/33830532

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311416 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMoving libFuzzer from LLVM to compiler-rt.
George Karpenkov [Mon, 21 Aug 2017 23:25:12 +0000 (23:25 +0000)]
Moving libFuzzer from LLVM to compiler-rt.

This change only removes libFuzzer tests and CMake machinery,
the source copy temporarily remains at the old location.

Differential Revision: https://reviews.llvm.org/D36980

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311405 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRe-apply "Introduce FuzzMutate library"
Justin Bogner [Mon, 21 Aug 2017 22:57:06 +0000 (22:57 +0000)]
Re-apply "Introduce FuzzMutate library"

Same as r311392 with some fixes for library dependencies. Thanks to
Chapuni for helping work those out!

Original commit message:

This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my EuroLLVM 2017 talk. Most of
the basic mutators to inject and delete IR are provided, with support
for most basic operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311402 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RegAlloc] Make sure live-ranges reflect the state of the IR when removing them
Quentin Colombet [Mon, 21 Aug 2017 22:56:18 +0000 (22:56 +0000)]
[RegAlloc] Make sure live-ranges reflect the state of the IR when removing them

When removing a live-range we used to not touch them making debug
prints harder to read because the IR was not matching what the
live-ranges information was saying.

This only affects debug printing and allows to put stronger asserts in
the code (see r308906 for instance).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311401 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ValueTracking] Add assertions that the starting Depth in isKnownToBeAPowerOfTwo...
Craig Topper [Mon, 21 Aug 2017 22:56:12 +0000 (22:56 +0000)]
[ValueTracking] Add assertions that the starting Depth in isKnownToBeAPowerOfTwo and ComputeNumSignBitsImpl is not above MaxDepth

The function does an equality check later to terminate the recursion, but that won't work if its starts out too high. Similar assert already exists in computeKnownBits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311400 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] add udiv/urem tests with constant numerator; NFC
Sanjay Patel [Mon, 21 Aug 2017 22:40:02 +0000 (22:40 +0000)]
[InstCombine] add udiv/urem tests with constant numerator; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311396 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Re-apply "Introduce FuzzMutate library""
Justin Bogner [Mon, 21 Aug 2017 22:28:47 +0000 (22:28 +0000)]
Revert "Re-apply "Introduce FuzzMutate library""

The dependencies for the new library seem to be misconfigured on some
linux configs:

  http://bb.pgr.jp/builders/llvm-i686-linux-RA/builds/5435/steps/build_all/logs/stdio

This reverts r311392.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311393 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRe-apply "Introduce FuzzMutate library"
Justin Bogner [Mon, 21 Aug 2017 22:25:04 +0000 (22:25 +0000)]
Re-apply "Introduce FuzzMutate library"

Redo r311356 with a fix to avoid std::uniform_int_distribution<bool>.
The bool specialization is undefined according to the standard, even
though libc++ seems to have it.

Original commit message:

This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my [EuroLLVM 2017 talk][1]. Most
of the basic mutators to inject and delete IR are provided, with
support for most basic operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311392 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] add more tests for udiv/urem narrowing; NFC
Sanjay Patel [Mon, 21 Aug 2017 21:57:52 +0000 (21:57 +0000)]
[InstCombine] add more tests for udiv/urem narrowing; NFC

We don't currently limit these folds with hasOneUse() or shouldChangeType().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311390 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Restore the test of conditional branch fusion
Evandro Menezes [Mon, 21 Aug 2017 21:57:43 +0000 (21:57 +0000)]
[AArch64] Restore the test of conditional branch fusion

Restore the functionality of this test that was broken by
https://reviews.llvm.org/rL306144.

Differential revision: https://reviews.llvm.org/D36807

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311389 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoGlobalISel (AArch64): fix ABI at border between GPRs and SP.
Tim Northover [Mon, 21 Aug 2017 21:56:11 +0000 (21:56 +0000)]
GlobalISel (AArch64): fix ABI at border between GPRs and SP.

If a struct would end up half in GPRs and half on SP the ABI says it should
actually go entirely on the stack. We were getting this wrong in GlobalISel
before, causing compatibility issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311388 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[IR] AutoUpgrade ModuleFlagBehavior for PIC and PIE level
Steven Wu [Mon, 21 Aug 2017 21:49:13 +0000 (21:49 +0000)]
[IR] AutoUpgrade ModuleFlagBehavior for PIC and PIE level

Summary:
From r303590, ModuleFlagBehavior for PIC and PIE level is changed from
Error to Max. This will cause bitcode compatibility issue when linking
against a bitcode static archive built with old compiler.
Add an auto-ugprade path to upgrade the the ModuleFlagBehavior in the
old bitcode to match the new one so IRLinker can link them.

Reviewers: tejohnson, mehdi_amini, dexonsmith

Reviewed By: dexonsmith

Subscribers: hans, llvm-commits

Differential Revision: https://reviews.llvm.org/D36556

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311387 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Move the checks for pointer types in getMaskedTypeForICmpPair earlier...
Craig Topper [Mon, 21 Aug 2017 21:00:45 +0000 (21:00 +0000)]
[InstCombine] Move the checks for pointer types in getMaskedTypeForICmpPair earlier in the function

I don't think there's any reason to have them scattered about and on all 4 operands. We already have an early check that both compares must be the same type. And within a given compare the LHS and RHS must have the same type. Beyond that I don't think there's anyway this function returns anything valid for pointer types. So let's just return early and be done with it.

Differential Revision: https://reviews.llvm.org/D36561

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311383 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Support, Windows] Handle long paths with unix separators
Pirama Arumuga Nainar [Mon, 21 Aug 2017 20:49:44 +0000 (20:49 +0000)]
[Support, Windows] Handle long paths with unix separators

Summary:
The function widenPath() for Windows also normalizes long path names by
iterating over the path's components and calling append().  The
assumption during the iteration that separators are not returned by the
iterator doesn't hold because the iterators do return a separator when
the path has a drive name.  Handle this case by ignoring separators
during iteration.

Reviewers: rnk

Subscribers: danalbert, srhines

Differential Revision: https://reviews.llvm.org/D36752

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311382 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Reapply: [ADCE][Dominators] Teach ADCE to preserve dominators"
Sanjoy Das [Mon, 21 Aug 2017 20:39:18 +0000 (20:39 +0000)]
Revert "Reapply: [ADCE][Dominators] Teach ADCE to preserve dominators"

Summary: This partially reverts commit r311057 since it breaks ADCE.  See PR34258.

Reviewers: kuhar

Subscribers: mcrosier, david2050, llvm-commits

Differential Revision: https://reviews.llvm.org/D36979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311381 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORE] Remove Old Optimization Remark API
Sam Elliott [Mon, 21 Aug 2017 20:30:44 +0000 (20:30 +0000)]
[ORE] Remove Old Optimization Remark API

Summary: https://bugs.llvm.org/show_bug.cgi?id=33789

Reviewers: anemet

Reviewed By: anemet

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36972

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311380 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PDB] Serialize records into a stack-allocated buffer.
Zachary Turner [Mon, 21 Aug 2017 20:17:19 +0000 (20:17 +0000)]
[PDB] Serialize records into a stack-allocated buffer.

We were using a std::vector<> and resizing to MaxRecordLength,
which is ~64KB.  We would then do this repeatedly often many
times in a tight loop, which was causing measurable performance
impact when linking PDBs.

Patch by Alex Telishev
Differential Revision: https://reviews.llvm.org/D36940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311375 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAlways compile libFuzzer with no coverage
George Karpenkov [Mon, 21 Aug 2017 20:12:58 +0000 (20:12 +0000)]
Always compile libFuzzer with no coverage

Do not compile libFuzzer itself with coverage, regardless of LLVM variables

Differential Revision: https://reviews.llvm.org/D36887

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311374 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[lld/pdb] Speed up construction of publics & globals addr map.
Zachary Turner [Mon, 21 Aug 2017 20:08:40 +0000 (20:08 +0000)]
[lld/pdb] Speed up construction of publics & globals addr map.

computeAddrMap function calls std::stable_sort with a comparison
function that computes deserialized symbols every time its called.
In the result deserializeAs<PublicSym32> is called 20-30 times per
symbol. It's much faster to calculate it beforehand and pass a
pointer to it to the comparison function.

Patch by Alex Telishev
Differential Revision: https://reviews.llvm.org/D36941

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311373 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InlineCost] Add cl::opt to allow full inline cost to be computed for debugging purposes.
Haicheng Wu [Mon, 21 Aug 2017 20:00:09 +0000 (20:00 +0000)]
[InlineCost] Add cl::opt to allow full inline cost to be computed for debugging purposes.

Currently, the inline cost model will bail once the inline cost exceeds the
inline threshold in order to avoid unnecessary compile-time. However, when
debugging it is useful to compute the full cost, so this command line option
is added to override the default behavior.

I took over this work from Chad Rosier (mcrosier@codeaurora.org).

Differential Revision: https://reviews.llvm.org/D35850

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311371 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InlineCost] Add more debug during inline cost computation.
Chad Rosier [Mon, 21 Aug 2017 19:56:46 +0000 (19:56 +0000)]
[InlineCost] Add more debug during inline cost computation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311370 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[BinaryStream] Defaultify copy and move constructors.
Zachary Turner [Mon, 21 Aug 2017 19:46:46 +0000 (19:46 +0000)]
[BinaryStream] Defaultify copy and move constructors.

The various BinaryStream classes had explicit copy constructors
which resulted in deleted move constructors.  This was causing
the internal std::shared_ptr to get copied rather than moved
very frequently, since these classes are often used as return
values.

Patch by Alex Telishev
Differential Revision: https://reviews.llvm.org/D36942

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311368 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LibCallSimplifier] try harder to fold memcmp with constant arguments (2nd try)
Sanjay Patel [Mon, 21 Aug 2017 19:13:14 +0000 (19:13 +0000)]
[LibCallSimplifier] try harder to fold memcmp with constant arguments (2nd try)

The 1st try was reverted because it could inf-loop by creating a dead instruction.
Fixed that to not happen and added a test case to verify.

Original commit message:

Try to fold:
memcmp(X, C, ConstantLength) == 0 --> load X == *C

Without this change, we're unnecessarily checking the alignment of the constant data,
so we miss the transform in the first 2 tests in the patch.

I noted this shortcoming of LibCallSimpifier in one of the recent CGP memcmp expansion
patches. This doesn't help the example in:
https://bugs.llvm.org/show_bug.cgi?id=34032#c13
...directly, but it's worth short-circuiting more of these simple cases since we're
already trying to do that.

The benefit of transforming to load+cmp is that existing IR analysis/transforms may
further simplify that code. For example, if the load of the variable is common to
multiple memcmp calls, CSE can remove the duplicate instructions.

Differential Revision: https://reviews.llvm.org/D36922

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311366 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Teach foldSelectICmpAnd to recognize a (icmp slt X, 0) and (icmp sgt...
Craig Topper [Mon, 21 Aug 2017 19:02:06 +0000 (19:02 +0000)]
[InstCombine] Teach foldSelectICmpAnd to recognize a (icmp slt X, 0) and (icmp sgt X, -1) as equivalent to an and with the sign bit of the truncated type

This is similar to what was already done in foldSelectICmpAndOr. Ultimately I'd like to see if we can call foldSelectICmpAnd from foldSelectIntoOp if we detect a power of 2 constant. This would allow us to remove foldSelectICmpAndOr entirely.

Differential Revision: https://reviews.llvm.org/D36498

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311362 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Introduce FuzzMutate library"
Justin Bogner [Mon, 21 Aug 2017 17:57:12 +0000 (17:57 +0000)]
Revert "Introduce FuzzMutate library"

Looks like this fails to build with libstdc++.

This reverts r311356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311358 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIntroduce FuzzMutate library
Justin Bogner [Mon, 21 Aug 2017 17:44:36 +0000 (17:44 +0000)]
Introduce FuzzMutate library

This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my [EuroLLVM 2017 talk][1]. Most
of the basic mutators to inject and delete IR are provided, with
support for most basic operations.

I will follow up with the instruction selection fuzzer, which is
implemented in terms of this library.

[1]: http://llvm.org/devmtg/2017-03//2017/02/20/accepted-sessions.html#2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311356 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PPC] Refine checks for emiting TOC restore nop and tail-call eligibility.
Sean Fertile [Mon, 21 Aug 2017 17:35:32 +0000 (17:35 +0000)]
[PPC] Refine checks for emiting TOC restore nop and tail-call eligibility.

For the medium and large code models we only need to check if a call crosses
dso-boundaries when considering tail-call elgibility.

Differential Revision: https://reviews.llvm.org/D34245

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311353 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMigrate WholeProgramDevirt to new Optimization Remark API
Sam Elliott [Mon, 21 Aug 2017 16:57:21 +0000 (16:57 +0000)]
Migrate WholeProgramDevirt to new Optimization Remark API

Summary:
This is an attempt to move WholeProgramDevirt to the new remark API.

https://bugs.llvm.org/show_bug.cgi?id=33793

Reviewers: anemet

Reviewed By: anemet

Subscribers: fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D36943

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311352 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[APFloat] Fix IsInteger() for DoubleAPFloat.
Davide Italiano [Mon, 21 Aug 2017 16:51:54 +0000 (16:51 +0000)]
[APFloat] Fix IsInteger() for DoubleAPFloat.

Previously, we would just assert instead.

Differential Revision:  https://reviews.llvm.org/D36961

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311351 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] add tests for memcmp with constant; NFC
Sanjay Patel [Mon, 21 Aug 2017 16:47:12 +0000 (16:47 +0000)]
[InstCombine] add tests for memcmp with constant; NFC

This is the baseline (current) version of the tests that would
have been added with the transform in r311333 (reverted at
r311340 due to inf-looping).

Adding these now to aid in testing and minimize the patch if/when
it is reinstated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311350 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoEmit only A Single Opt Remark When Inlining
Sam Elliott [Mon, 21 Aug 2017 16:45:47 +0000 (16:45 +0000)]
Emit only A Single Opt Remark When Inlining

Summary:
This updates the Inliner to only add a single Optimization
Remark when Inlining, rather than an Analysis Remark and an
Optimization Remark.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33786

Reviewers: anemet, davidxl, chandlerc

Reviewed By: anemet

Subscribers: haicheng, fhahn, mehdi_amini, dblaikie, llvm-commits, eraman

Differential Revision: https://reviews.llvm.org/D36054

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311349 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Fix a weakness in canEvaluateZExtd around 'and' instructions
Craig Topper [Mon, 21 Aug 2017 16:04:11 +0000 (16:04 +0000)]
[InstCombine] Fix a weakness in canEvaluateZExtd around 'and' instructions

Summary:
If the bitsToClear from the LHS of an 'and' comes back non-zero, but all of those bits are known zero on the RHS, we can reset bitsToClear.

Without this, the 'or' in the modified test case blocks the transform because it has non-zero bits in its RHS in those bits.

Reviewers: spatel, majnemer, davide

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36944

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311343 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] When selecting sse_load_f32/f64 pattern, make sure there's only one use of...
Craig Topper [Mon, 21 Aug 2017 16:04:04 +0000 (16:04 +0000)]
[X86] When selecting sse_load_f32/f64 pattern, make sure there's only one use of every node all the way back to the root of the match

Summary: With masked operations, its possible for the operation node like fadd, fsub, etc. to be used by multiple different vselects. Since the pattern matching will start at the vselect, we need to make sure the operation node itself is only used once before we can fold a load. Otherwise we'll end up folding the same load into multiple instructions.

Reviewers: RKSimon, spatel, zvi, igorb

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36938

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311342 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert 311208, 311209
Xinliang David Li [Mon, 21 Aug 2017 16:00:38 +0000 (16:00 +0000)]
Revert 311208, 311209

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311341 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agorevert r311333: [LibCallSimplifier] try harder to fold memcmp with constant arguments
Sanjay Patel [Mon, 21 Aug 2017 15:16:25 +0000 (15:16 +0000)]
revert r311333: [LibCallSimplifier] try harder to fold memcmp with constant arguments

We're getting lots of compile-timeout bot failures like:
http://lab.llvm.org:8011/builders/clang-native-arm-lnt/builds/7119
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-avx2-linux

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311340 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] add vector tests; NFC
Sanjay Patel [Mon, 21 Aug 2017 15:11:39 +0000 (15:11 +0000)]
[InstCombine] add vector tests; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311339 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-pdbutil] Add support for dumping detailed module stats.
Zachary Turner [Mon, 21 Aug 2017 14:53:25 +0000 (14:53 +0000)]
[llvm-pdbutil] Add support for dumping detailed module stats.

This adds support for dumping a summary of module symbols
and CodeView debug chunks.  This option prints a table for
each module of all of the symbols that occurred in the module
and the number of times it occurred and total byte size.  Then
at the end it prints the totals for the entire file.

Additionally, this patch adds the -jmc (just my code) option,
which suppresses modules which are from external libraries or
linker imports, so that you can focus only on the object files
and libraries that originate from your own source code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311338 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] regenerate test checks; NFC
Sanjay Patel [Mon, 21 Aug 2017 14:34:06 +0000 (14:34 +0000)]
[InstCombine] regenerate test checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311337 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LibCallSimplifier] try harder to fold memcmp with constant arguments
Sanjay Patel [Mon, 21 Aug 2017 13:55:49 +0000 (13:55 +0000)]
[LibCallSimplifier] try harder to fold memcmp with constant arguments

Try to fold:
memcmp(X, C, ConstantLength) == 0 --> load X == *C

Without this change, we're unnecessarily checking the alignment of the constant data,
so we miss the transform in the first 2 tests in the patch.

I noted this shortcoming of LibCallSimpifier in one of the recent CGP memcmp expansion
patches. This doesn't help the example in:
https://bugs.llvm.org/show_bug.cgi?id=34032#c13
...directly, but it's worth short-circuiting more of these simple cases since we're
already trying to do that.

The benefit of transforming to load+cmp is that existing IR analysis/transforms may
further simplify that code. For example, if the load of the variable is common to
multiple memcmp calls, CSE can remove the duplicate instructions.

Differential Revision: https://reviews.llvm.org/D36922

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311333 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] Check if the pre-increment PHI Node already exists
Stefan Pintilie [Mon, 21 Aug 2017 13:36:18 +0000 (13:36 +0000)]
[PowerPC] Check if the pre-increment PHI Node already exists

Preparations to use the per-increment are sometimes done in the target
independent pass Loop Strength Reduction. We try to detect them in the PowerPC
specific pass so that they are not done twice and so that we do not add PHIs
that are not required.

Differential Revision: https://reviews.llvm.org/D36736

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311332 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] Support G_BRCOND operation.
Igor Breger [Mon, 21 Aug 2017 10:51:54 +0000 (10:51 +0000)]
[GlobalISel][X86] Support G_BRCOND operation.

Summary: Support G_BRCOND operation. For now don't try to fold cmp/trunc instructions.

Reviewers: zvi, guyblank

Reviewed By: guyblank

Subscribers: rovka, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D34754

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311327 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AsmParser] Recommit: Hash is not a comment on some targets
Oliver Stannard [Mon, 21 Aug 2017 09:58:37 +0000 (09:58 +0000)]
[AsmParser] Recommit: Hash is not a comment on some targets

Re-committing after r311325 fixed an unintentional use of '#' comments in
clang.

The '#' token is not a comment for all targets (on ARM and AArch64 it marks an
immediate operand), so we shouldn't treat it as such.

Comments are already converted to AsmToken::EndOfStatement by
AsmLexer::LexLineComment, so this check was unnecessary.

Differential Revision: https://reviews.llvm.org/D36405

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311326 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] InstructionSelector, for now use fallback path for LOAD_STACK_GUARD...
Igor Breger [Mon, 21 Aug 2017 09:17:28 +0000 (09:17 +0000)]
[GlobalISel][X86] InstructionSelector, for now use fallback path for LOAD_STACK_GUARD and PHI nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311323 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] LowerCall, for now don't handel ByValue function arguments.
Igor Breger [Mon, 21 Aug 2017 08:59:59 +0000 (08:59 +0000)]
[GlobalISel][X86] LowerCall, for now don't handel ByValue function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311321 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InterLeaved] Adding lit test for future work interleaved load strid 3
Michael Zuckerman [Mon, 21 Aug 2017 08:56:39 +0000 (08:56 +0000)]
[InterLeaved] Adding lit test for future work interleaved load strid 3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311320 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] Teach the "generic" x86 CPU to avoid patterns that are slow on
Chandler Carruth [Mon, 21 Aug 2017 08:45:22 +0000 (08:45 +0000)]
[x86] Teach the "generic" x86 CPU to avoid patterns that are slow on
widely used processors.

This occured to me when I saw that we were generating 'inc' and 'dec'
when for Haswell and newer we shouldn't. However, there were a few "X is
slow" things that we should probably just set.

I've avoided any of the "X is fast" features because most of those would
be pretty serious regressions on processors where X isn't actually fast.
The slow things are likely to be negligible costs on processors where
these aren't slow and a significant win when they are slow.

In retrospect this seems somewhat obvious. Not sure why we didn't do
this a long time ago.

Differential Revision: https://reviews.llvm.org/D36947

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311318 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] Handle more cases where we can re-use an atomic operation's flags
Chandler Carruth [Mon, 21 Aug 2017 08:45:19 +0000 (08:45 +0000)]
[x86] Handle more cases where we can re-use an atomic operation's flags
rather than doing a separate comparison.

This both saves an explicit comparision and avoids the use of `xadd`
which introduces register constraints and other challenges to the
generated code.

The motivating case is from atomic reference counts where `1` is the
sentinel rather than `0` for whatever reason. This can and should be
lowered efficiently on x86 by just using a different flag, however the
x86 code only handled the `0` case.

There remains some further opportunities here that are currently hidden
due to canonicalization. I've included test cases that show these and
FIXMEs. However, I don't at the moment have any production use cases and
they seem substantially harder to address.

Differential Revision: https://reviews.llvm.org/D36945

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311317 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM][AArch64] Cortex-A75 and Cortex-A55 support
Sam Parker [Mon, 21 Aug 2017 08:43:06 +0000 (08:43 +0000)]
[ARM][AArch64] Cortex-A75 and Cortex-A55 support

This patch introduces support for Cortex-A75 and Cortex-A55, Arm's
latest big.LITTLE A-class cores. They implement the ARMv8.2-A
architecture, including the cryptography and RAS extensions, plus
the optional dot product extension. They also implement the RCpc
AArch64 extension from ARMv8.3-A.

Cortex-A75:
https://developer.arm.com/products/processors/cortex-a/cortex-a75

Cortex-A55:
https://developer.arm.com/products/processors/cortex-a/cortex-a55

Differential Revision: https://reviews.llvm.org/D36667

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311316 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Support/Parallel] - Do not use a task group for a very small task.
George Rimar [Mon, 21 Aug 2017 08:00:54 +0000 (08:00 +0000)]
[Support/Parallel] - Do not use a task group for a very small task.

parallel_for_each_n splits a given task into small pieces of tasks and then
passes them to background threads managed by a thread pool to process them
in parallel. TaskGroup then waits for all tasks to be done, which is done by
TaskGroup's destructor.

In the previous code, all tasks were passed to background threads, and the
main thread just waited for them to finish their jobs. This patch changes
the logic so that the main thread processes a task just like other
worker threads instead of just waiting for workers.

This patch improves the performance of parallel_for_each_n for a task which
is too small that we do not split it into multiple tasks. Previously, such task
was submitted to another thread and the main thread waited for its completion.
That involves multiple inter-thread synchronization which is not cheap for
small tasks. Now, such task is processed by the main thread, so no inter-thread
communication is necessary.

Differential revision: https://reviews.llvm.org/D36607

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311312 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Allow xacquire/xrelease prefixes
Coby Tayree [Mon, 21 Aug 2017 07:50:15 +0000 (07:50 +0000)]
[X86] Allow xacquire/xrelease prefixes

Allow those prefixes on assembly code
Differential Revision: https://reviews.llvm.org/D36845

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311309 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AVX-512] Don't change which instructions we use for unmasked subvector broadcasts...
Craig Topper [Mon, 21 Aug 2017 05:29:02 +0000 (05:29 +0000)]
[AVX-512] Don't change which instructions we use for unmasked subvector broadcasts when AVX512DQ is enabled.

There's no functional difference between the AVX512DQ instructions if we're not masking.

This change unifies test checks and removes extra isel entries. Similar was done for subvector insert and extracts recently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311308 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AVX512] Add 128->256 vbroadcastf64x2/vbroadcasti64x2 instructions to the EVEX->VEX...
Craig Topper [Mon, 21 Aug 2017 05:03:28 +0000 (05:03 +0000)]
[AVX512] Add 128->256 vbroadcastf64x2/vbroadcasti64x2 instructions to the EVEX->VEX table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311307 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[XRay][tools] Support new kinds of instrumentation map entries
Dean Michael Berris [Mon, 21 Aug 2017 00:14:06 +0000 (00:14 +0000)]
[XRay][tools] Support new kinds of instrumentation map entries

Summary:
When extracting the instrumentation map from a binary, we should be able
to recognize the new kinds of instrumentation sleds we've been emitting
with the compiler using -fxray-instrument. This change adds a test for
all the kinds of sleds we currently support (sans the tail-call sled,
which is a bit harder to force in a simple prebuilt input).

Reviewers: kpw, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36819

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311305 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r311077: [LV] Using VPlan ...
Chandler Carruth [Sun, 20 Aug 2017 23:17:11 +0000 (23:17 +0000)]
Revert r311077: [LV] Using VPlan ...

This causes LLVM to assert fail on PPC64 and crash / infloop in other
cases. Filed http://llvm.org/PR34248 with reproducer attached.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311304 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Add a test case for a weakness in canEvaluateZExtd. NFC
Craig Topper [Sun, 20 Aug 2017 21:38:28 +0000 (21:38 +0000)]
[InstCombine] Add a test case for a weakness in canEvaluateZExtd. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311303 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AVX512] Add a test to check what happens when a load is referenced by two different...
Craig Topper [Sun, 20 Aug 2017 19:47:00 +0000 (19:47 +0000)]
[AVX512] Add a test to check what happens when a load is referenced by two different masked scalar intrinsics with the same op inputs, but different masking node.

We're missing some single use checks in the sse_load_f32/f64 handling that cause us to replicate the load.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311300 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix archive-update.test after r311296.
Kuba Mracek [Sun, 20 Aug 2017 18:31:30 +0000 (18:31 +0000)]
Fix archive-update.test after r311296.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311299 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AVX-512] Use a scalar load pattern for FPCLASSSS/FPCLASSSD patterns.
Craig Topper [Sun, 20 Aug 2017 18:30:24 +0000 (18:30 +0000)]
[AVX-512] Use a scalar load pattern for FPCLASSSS/FPCLASSSD patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311297 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove uses of "%T" from test/Object/archive-* tests.
Kuba Mracek [Sun, 20 Aug 2017 18:18:44 +0000 (18:18 +0000)]
Remove uses of "%T" from test/Object/archive-* tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311296 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NVPTX] Reduce copypasta.
Benjamin Kramer [Sun, 20 Aug 2017 17:30:32 +0000 (17:30 +0000)]
[NVPTX] Reduce copypasta.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311295 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoGet rid of even more "%T" expansions, see <https://reviews.llvm.org/D35396>.
Kuba Mracek [Sun, 20 Aug 2017 17:05:22 +0000 (17:05 +0000)]
Get rid of even more "%T" expansions, see <https://reviews.llvm.org/D35396>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311294 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoGet rid of some more "%T" expansions, see <https://reviews.llvm.org/D35396>.
Kuba Mracek [Sun, 20 Aug 2017 17:00:08 +0000 (17:00 +0000)]
Get rid of some more "%T" expansions, see <https://reviews.llvm.org/D35396>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311293 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MachO] Use Twines more efficiently.
Benjamin Kramer [Sun, 20 Aug 2017 15:13:39 +0000 (15:13 +0000)]
[MachO] Use Twines more efficiently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311291 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Mem2Reg] Modernize code a bit.
Benjamin Kramer [Sun, 20 Aug 2017 14:34:44 +0000 (14:34 +0000)]
[Mem2Reg] Modernize code a bit.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311290 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMove helper classes into anonymous namespaces.
Benjamin Kramer [Sun, 20 Aug 2017 13:03:48 +0000 (13:03 +0000)]
Move helper classes into anonymous namespaces.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311288 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dlltool] Make memory buffer ownership less weird.
Benjamin Kramer [Sun, 20 Aug 2017 13:03:32 +0000 (13:03 +0000)]
[dlltool] Make memory buffer ownership less weird.

There's no reason to destroy them in a global destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311287 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoChanged basic cost of store operation on X86
Elena Demikhovsky [Sun, 20 Aug 2017 12:34:29 +0000 (12:34 +0000)]
Changed basic cost of store operation on X86

Store operation takes 2 UOps on X86 processors. The exact cost calculation affects several optimization passes including loop unroling.
This change compensates performance degradation caused by https://reviews.llvm.org/D34458 and shows improvements on some benchmarks.

Differential Revision: https://reviews.llvm.org/D35888

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311285 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Loop Vectorize] Added a separate metadata
Aditya Kumar [Sun, 20 Aug 2017 10:32:41 +0000 (10:32 +0000)]
[Loop Vectorize] Added a separate metadata

Added a separate metadata to indicate when the loop
has already been vectorized instead of setting width and count to 1.

Patch written by Divya Shanmughan and Aditya Kumar

Differential Revision: https://reviews.llvm.org/D36220

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311281 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] Support call ABI.
Igor Breger [Sun, 20 Aug 2017 09:25:22 +0000 (09:25 +0000)]
[GlobalISel][X86] Support call ABI.

Summary: Support call ABI. For now only Linux C and X86_64_SysV calling conventions supported. Variadic function not supported.

Reviewers: zvi, guyblank, oren_ben_simhon

Reviewed By: oren_ben_simhon

Subscribers: rovka, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34602

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311279 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] Support asimetric copy from/to GPR physical register.
Igor Breger [Sun, 20 Aug 2017 07:14:40 +0000 (07:14 +0000)]
[GlobalISel][X86] Support asimetric copy from/to GPR physical register.

Usually this case generated by ABI lowering, it requare to performe trancate/anyext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311278 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RISCV] Trivial whitespace fix in RISCVInstPrinter
Alex Bradbury [Sun, 20 Aug 2017 06:58:43 +0000 (06:58 +0000)]
[RISCV] Trivial whitespace fix in RISCVInstPrinter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311277 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RISCV] Fix two abuses of llvm_unreachable
Alex Bradbury [Sun, 20 Aug 2017 06:57:27 +0000 (06:57 +0000)]
[RISCV] Fix two abuses of llvm_unreachable

Replace with report_fatal_error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311276 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RISCV] Set HasRelocationAddend for RISCVELFObjectWriter
Alex Bradbury [Sun, 20 Aug 2017 06:55:14 +0000 (06:55 +0000)]
[RISCV] Set HasRelocationAddend for RISCVELFObjectWriter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311275 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Emit only A Single Opt Remark When Inlining"
Sam Elliott [Sun, 20 Aug 2017 06:55:10 +0000 (06:55 +0000)]
Revert "Emit only A Single Opt Remark When Inlining"

Reverting due to clang build failure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311274 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoEmit only A Single Opt Remark When Inlining
Sam Elliott [Sun, 20 Aug 2017 06:43:34 +0000 (06:43 +0000)]
Emit only A Single Opt Remark When Inlining

Summary:
This updates the Inliner to only add a single Optimization
Remark when Inlining, rather than an Analysis Remark and an
Optimization Remark.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33786

Reviewers: anemet, davidxl, chandlerc

Reviewed By: anemet

Subscribers: haicheng, fhahn, mehdi_amini, dblaikie, llvm-commits, eraman

Differential Revision: https://reviews.llvm.org/D36054

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311273 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalIsel] Fix undefined behavior if Action not set (release), it aslo crashing...
Igor Breger [Sun, 20 Aug 2017 06:26:22 +0000 (06:26 +0000)]
[GlobalIsel] Fix undefined behavior if Action not set (release), it aslo crashing in debug mode.

Differential Revision: https://reviews.llvm.org/D34978

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311272 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoKeep Optimization Remark Yaml in NewPM
Sam Elliott [Sun, 20 Aug 2017 01:30:45 +0000 (01:30 +0000)]
Keep Optimization Remark Yaml in NewPM

Summary:
The New Pass Manager infrastructure was forgetting to keep around the optimization remark yaml file that the compiler might have been producing. This meant setting the option to '-' for stdout worked, but setting it to a filename didn't give file output (presumably it was deleted because compilation didn't explicitly keep it). This change just ensures that the file is kept if compilation succeeds.

So far I have updated one of the optimization remark output tests to add a version with the new pass manager. It is my intention for this patch to also include changes to all tests that use `-opt-remark-output=` but I wanted to get the code patch ready for review while I was making all those changes.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33951

Reviewers: anemet, chandlerc

Reviewed By: anemet, chandlerc

Subscribers: javed.absar, chandlerc, fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D36906

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311271 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] Fix an even stranger corner case where we have multiple levels of
Chandler Carruth [Sat, 19 Aug 2017 23:35:50 +0000 (23:35 +0000)]
[x86] Fix an even stranger corner case where we have multiple levels of
cmov self-refrencing.

Pointed out by Amjad Aboud in code review, test case minorly simplified
from the one he posted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311267 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Merge all of the vecload and alignedload predicates into single predicates.
Craig Topper [Sat, 19 Aug 2017 23:21:22 +0000 (23:21 +0000)]
[X86] Merge all of the vecload and alignedload predicates into single predicates.

We can load the memory VT and check for natural alignment. This also adds a new preferNonTemporalLoad helper that checks the correct subtarget feature based on the load size.

This shrinks the isel table by at least 5000 bytes by allowing more reordering and combining to occur.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311266 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Converge alignedstore/alignedstore256/alignedstore512 to a single predicate.
Craig Topper [Sat, 19 Aug 2017 23:21:21 +0000 (23:21 +0000)]
[X86] Converge alignedstore/alignedstore256/alignedstore512 to a single predicate.

We can read the memoryVT and get its store size directly from the SDNode to check its alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311265 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AVX512] Use alignedstore256 in a pattern that's emitting a 256-bit movaps from an...
Craig Topper [Sat, 19 Aug 2017 22:02:02 +0000 (22:02 +0000)]
[AVX512] Use alignedstore256 in a pattern that's emitting a 256-bit movaps from an extract subvector operation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311263 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSet init value for ScalarEvolution::BackedgeTakenInfo::MaxOrZero
Victor Leschuk [Sat, 19 Aug 2017 21:05:08 +0000 (21:05 +0000)]
Set init value for ScalarEvolution::BackedgeTakenInfo::MaxOrZero

Otherwise it can be used uninitialized in move ctor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311262 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Factorize the calculation of WhichResult in isV*Mask. NFC.
Martin Storsjo [Sat, 19 Aug 2017 20:26:51 +0000 (20:26 +0000)]
[ARM] Factorize the calculation of WhichResult in isV*Mask. NFC.

Differential Revision: https://reviews.llvm.org/D36930

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311260 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Check the right order for halves of VZIP/VUZP if both parts are used
Martin Storsjo [Sat, 19 Aug 2017 19:47:48 +0000 (19:47 +0000)]
[ARM] Check the right order for halves of VZIP/VUZP if both parts are used

This is the exact same fix as in SVN r247254. In that commit, the fix was
applied only for isVTRNMask and isVTRN_v_undef_Mask, but the same issue
is present for VZIP/VUZP as well.

This fixes PR33921.

Differential Revision: https://reviews.llvm.org/D36899

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311258 91177308-0d34-0410-b5e6-96231b3b80d8