David Majnemer [Tue, 5 Jan 2016 02:32:06 +0000 (02:32 +0000)]
Revert "[X86] Use push-pop for materializing small constants under 'minsize'"
The red zone consists of 128 bytes beyond the stack pointer so that the
allocation of objects in leaf functions doesn't require decrementing
rsp. In r255656, we introduced an optimization that would cheaply
materialize certain constants via push/pop. Push decrements the stack
pointer and stores it's result at what is now the top of the stack.
However, this means that using push/pop would encroach on the red zone.
PR26023 gives an example where this corrupts an object in the red zone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256808
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Tom Stellard [Tue, 5 Jan 2016 02:26:37 +0000 (02:26 +0000)]
AMDGPU/SI: Consolidate FLAT patterns
Summary:
We had to sets of identical FLAT patterns one inside the
HasFlatAddressSpace predicate and one inside the useFlatForGloabl
predicate. This patch merges these sets into a single pattern
under the isCIVI predicate.
The reason we can remove the predicates is that when MUBUF instructions
are legal, the instruction selector will prefer selecting those over
FLAT instructions because MUBUF patterns have a higher complexity score.
So, in this case having patterns for FLAT instructions will have no effect.
This change also simplifies the process for forcing global address space
loads to use FLAT instructions, since we no only have to disable the
MUBUF patterns instead of having to disable the MUBUF patterns and
enable the FLAT patterns.
Reviewers: arsenm, cfang
Subscribers: llvm-commits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256807
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Philip Reames [Tue, 5 Jan 2016 00:49:14 +0000 (00:49 +0000)]
[MDA] Don't be quite as conservative for noalias functions
If we encounter a noalias call that alias analysis can't analyse, we can fall down into the generic call handling rather than giving up entirely. I noticed this while reading through the code for another purpose.
I can't seem to write a test case which changes; that sorta makes sense given any test case would have to be an inconsistency in AA. Suggestions welcome.
Differential Revision: http://reviews.llvm.org/D15825
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256802
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Matthias Braun [Tue, 5 Jan 2016 00:48:16 +0000 (00:48 +0000)]
X86: Add a testcase for PR25951
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256801
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Matthias Braun [Tue, 5 Jan 2016 00:45:35 +0000 (00:45 +0000)]
MachineInstrBundle: Fix reversed isSuperRegisterEq() call
Unfortunately this fix had the effect of exposing the
-verify-machineinstrs FIXME of X86InstrInfo.cpp in two testcases for
which I disabled it for now.
Two testcases also have additional pushq/popq where the corrected code
cannot prove that %rax is dead any longer. Looking at the examples, this
could potentially be fixed by improving computeRegisterLiveness() to check
the live-in lists of the successors blocks when reaching the end of a
block.
This fixes http://llvm.org/PR25951.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256799
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Matthias Braun [Tue, 5 Jan 2016 00:45:31 +0000 (00:45 +0000)]
Fix typo in comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256798
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Xinliang David Li [Mon, 4 Jan 2016 23:59:14 +0000 (23:59 +0000)]
Add explicit string checks in test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256796
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Nicolai Haehnle [Mon, 4 Jan 2016 23:35:53 +0000 (23:35 +0000)]
AMDGPU: add +xnack feature
Summary:
Enabling this feature will account for the two SGPRs used by the hardware
to store the XNACK_MASK physically.
The hardware only requires this reservation when the XNACK feature is
explicitly enabled. At some point, HSA will probably want to do that, but
it does increase SGPR register pressure, so leave it disabled by default
for now (but do add a small test).
Reviewers: arsenm, tstellarAMD
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15869
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256794
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Chen Li [Mon, 4 Jan 2016 23:28:57 +0000 (23:28 +0000)]
[InstructionCombining] prepareICWorklistFromFunction halts in infinite loop with instructions of token type
Summary: This patch fixes a bug in prepareICWorklistFromFunction, where the loop becomes infinite with instructions of token type. The patch checks if the instruction is token type, and if so it updates EndInst with the current instruction.
Reviewers: reames, majnemer
Subscribers: llvm-commits, sanjoy
Differential Revision: http://reviews.llvm.org/D15859
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256792
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Eric Christopher [Mon, 4 Jan 2016 23:22:43 +0000 (23:22 +0000)]
Update docs to recommend CMake >= v3.2.
CMake v3.2 or newer is necessary to get interactive output when running
Lit via Ninja. Otherwise Ninja will buffer Lit's output, which makes
for a crummy experience -- you can't tell if your tests are hung!
Patch by Justin Lebar!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256791
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Eric Christopher [Mon, 4 Jan 2016 23:18:58 +0000 (23:18 +0000)]
Clarify that the bypassSlowDivision optimization operates on a single BB [v2]
Update some comments to be more explicit.
Change bypassSlowDivision and the functions it calls so that they take
BasicBlock*s and Instruction*s, rather than Function::iterator&s and
BasicBlock::iterator&s.
Change the APIs so that the caller is responsible for updating the
iterator, rather than the callee. This makes control flow much easier
to follow.
Patch by Justin Lebar!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256789
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David Majnemer [Mon, 4 Jan 2016 23:16:22 +0000 (23:16 +0000)]
[LICM] Fix a small oversight introduced in r256763
r256763 had promoteLoopAccessesToScalars check for the existence of a
catchswitch when the exit blocks were populated but
promoteLoopAccessesToScalars may be called with a prepopulated set of
exit blocks which would also need to be checked.
This fixes PR26019.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256788
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Philip Reames [Mon, 4 Jan 2016 22:49:23 +0000 (22:49 +0000)]
[MemoryBuiltins] Remove isOperatorNewLike by consolidating non-null inference handling
This patch removes the isOperatorNewLike predicate since it was only being used to establish a non-null return value and we have attributes specifically for that purpose with generic handling. To keep approximate the same behaviour for existing frontends, I added the various operator new like (i.e. instances of operator new) to InferFunctionAttrs. It's not really clear to me why this isn't handled in Clang, but I didn't want to break existing code and any subtle assumptions it might have.
Once this patch is in, I'm going to start separating the isAllocLike family of predicates. These appear to be being used for a mixture of things which should be more clearly separated and documented. Today, they're being used to indicate (at least) aliasing facts, CSE-ability, and default values from an allocation site.
Differential Revision: http://reviews.llvm.org/D15820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256787
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Xinliang David Li [Mon, 4 Jan 2016 22:09:26 +0000 (22:09 +0000)]
[PGO] Simplify string parsing
Patch Suggested by Vedant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256785
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Xinliang David Li [Mon, 4 Jan 2016 22:01:02 +0000 (22:01 +0000)]
[PGO] Refactor string writer code
For readability and code sharing.
(Adapted from Suggestions by Vedant).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256784
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Haicheng Wu [Mon, 4 Jan 2016 21:43:14 +0000 (21:43 +0000)]
[LIR] General refactoring to simplify code and the ease future code review
This is a resubmission of r256336 which was reverted in r256361. The issue was the lack of the invariant check of the memset value in processLooMemSet().
The original message:
Move several checks into isLegalStores. Also, delineate between those stores that are memset-able and those that are memcpy-able.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256783
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Simon Pilgrim [Mon, 4 Jan 2016 21:41:11 +0000 (21:41 +0000)]
[X86][SSE] Ensure BLENDPD/BLENDPS/PBLEND inputs are both of the correct input type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256782
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Xinliang David Li [Mon, 4 Jan 2016 21:31:09 +0000 (21:31 +0000)]
[PGO]: Use efficient 'join' API for uncompressed string
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256781
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Xinliang David Li [Mon, 4 Jan 2016 20:26:05 +0000 (20:26 +0000)]
[PGO]: reserve space for string to avoid excessive memory realloc/copy (non linear)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256776
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Tom Stellard [Mon, 4 Jan 2016 20:23:10 +0000 (20:23 +0000)]
AMDGPU/SI: Move VI SMEM pattern back into VIInstructions.td
Summary: This was accidently moved to CIInstructions.td in r256282
Reviewers: cfang, arsenm
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15763
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256775
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Xinliang David Li [Mon, 4 Jan 2016 20:00:47 +0000 (20:00 +0000)]
Update documantation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256774
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Aditya Nandakumar [Mon, 4 Jan 2016 19:48:14 +0000 (19:48 +0000)]
Remove dead instructions before Redoing
Before reevaluating instructions, iterate over all instructions
to be reevaluated and remove trivially dead instructions and if
any of it's operands become trivially dead, mark it for deletion
until all trivially dead instructions have been removed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256773
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Haicheng Wu [Mon, 4 Jan 2016 19:13:29 +0000 (19:13 +0000)]
Revert previous test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256768
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Haicheng Wu [Mon, 4 Jan 2016 19:12:36 +0000 (19:12 +0000)]
This is a test commit to check my commit access works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256767
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Geoff Berry [Mon, 4 Jan 2016 18:55:47 +0000 (18:55 +0000)]
[AArch64] Optimize some simple TBZ/TBNZ cases.
Summary:
Add some AArch64 dag combines to optimize some simple TBZ/TBNZ cases:
(tbz (and x, m), b) -> (tbz x, b)
(tbz (shl x, c), b) -> (tbz x, b-c)
(tbz (shr x, c), b) -> (tbz x, b+c)
(tbz (xor x, -1), b) -> (tbnz x, b)
Reviewers: jmolloy, mcrosier, t.p.northover
Subscribers: aemerson, rengolin, llvm-commits
Differential Revision: http://reviews.llvm.org/D15702
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256765
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Paul Robinson [Mon, 4 Jan 2016 18:49:15 +0000 (18:49 +0000)]
Clang-format my previous change (r256313)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256764
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David Majnemer [Mon, 4 Jan 2016 17:42:19 +0000 (17:42 +0000)]
[LICM] Don't insert instructions after a catchswitch when performing loop promotion
Inserting after a catchswitch results in verifier errors, bail out on
promotion if a catchswitch is a loop exit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256763
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Nick Lewycky [Mon, 4 Jan 2016 16:44:44 +0000 (16:44 +0000)]
Fix comment in typo. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256761
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Joseph Tremoulet [Mon, 4 Jan 2016 16:16:01 +0000 (16:16 +0000)]
[WinEH] Update CoreCLR EH state numbering
Summary:
Fix the CLR state numbering to generate correct tables, and update the lit
test to verify them.
The CLR numbering assigns one state number to each catchpad and
cleanuppad.
It also computes two tree-like relations over states:
1) Each state has a "HandlerParentState", which is the state of the next
outer handler enclosing this state's handler (same as nearest ancestor
per the ParentPad linkage on EH pads, but skipping over catchswitches).
2) Each state has a "TryParentState", which:
a) for a catchpad that's not the last handler on its catchswitch, is
the state of the next catchpad on that catchswitch.
b) for all other pads, is the state of the pad whose try region is the
next outer try region enclosing this state's try region. The "try
regions are not present as such in the IR, but will be inferred
based on the placement of invokes and pads which reach each other
by exceptional exits.
Catchswitches do not get their own states, but each gets mapped to the
state of its first catchpad.
Table generation requires each state's "unwind dest" state to have a lower
state number than the given state.
Since HandlerParentState can be computed as a function of a pad's
ParentPad, and TryParentState can be computed as a function of its unwind
dest and the TryParentStates of its children, the CLR state numbering
algorithm first computes HandlerParentState in a top-down pass, then
computes TryParentState in a bottom-up pass.
Also reword some comments/names in the CLR EH table generation to make the
distinction between the different kinds of "parent" clear.
Reviewers: rnk, andrew.w.kaylor, majnemer
Subscribers: AndyAyers, llvm-commits
Differential Revision: http://reviews.llvm.org/D15325
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256760
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Nicolai Haehnle [Mon, 4 Jan 2016 15:50:01 +0000 (15:50 +0000)]
AMDGPU: Avoid assertions after SGPR spilling failed
Summary:
The comment explains it: emitError does not necessarily exit the compilation
process, and then using NoRegister leads to assertions later on.
This generates incorrect code, of course, but the user should know to not use
the result when an error has been emitted.
It would be nice to have a test-case for this inside the LLVM repository,
but llc exits on error. shader-db tests trigger the underlying issue at least
on Tonga.
Reviewers: arsenm, tstellarAMD, mareko
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15826
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256757
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Michael Zuckerman [Mon, 4 Jan 2016 13:45:45 +0000 (13:45 +0000)]
[AVX512] add PSRAD and PSRAQ Intrinsic
Differential Revision: http://reviews.llvm.org/D15851
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256754
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Michael Zuckerman [Mon, 4 Jan 2016 12:50:36 +0000 (12:50 +0000)]
[AVX512] add PSRAW Intrinsic
Differential Revision: http://reviews.llvm.org/D15850
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256751
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Jeroen Ketema [Mon, 4 Jan 2016 12:22:34 +0000 (12:22 +0000)]
[MC] Fix file name in file header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256749
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Michael Zuckerman [Mon, 4 Jan 2016 11:39:06 +0000 (11:39 +0000)]
[AVX512] add PSRLV Intrinsic
Differential Revision: http://reviews.llvm.org/D15838
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256747
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Chandler Carruth [Mon, 4 Jan 2016 07:23:12 +0000 (07:23 +0000)]
Fix a horrible infloop in value tracking in the face of dead code.
Amazingly, we just never triggered this without:
1) Moving code around for MetadataTracking so that a certain *different*
amount of inlining occurs in the per-TU compile step.
2) Then you LTO opt or clang with a bootstrap, and get inlining, loop
opts, and GVN line up everything *just* right.
I don't really know how we didn't hit this before. We really need to be
fuzz testing stuff, it shouldn't be hard to trigger. I'm working on
crafting a reduced nice test case, and will submit that when I have it,
but I want to get LTO build bots going again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256735
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Craig Topper [Mon, 4 Jan 2016 06:35:08 +0000 (06:35 +0000)]
[TableGen] Fix a typo in r256733.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256734
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Craig Topper [Mon, 4 Jan 2016 06:28:49 +0000 (06:28 +0000)]
[TableGen] Use some free space in Init to store the opcode for UnOpInit/BinOpInit/TernOpInit allowing those types to be a little smaller. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256733
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Craig Topper [Mon, 4 Jan 2016 04:51:51 +0000 (04:51 +0000)]
[TableGen] Call llvm_shutdown on exit so that all the ManagedStatic objects in the support library will be deleted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256732
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David Majnemer [Mon, 4 Jan 2016 04:49:41 +0000 (04:49 +0000)]
[X86] Make hasFP constant time
We need a frame pointer if there is a push/pop sequence after the
prologue in order to unwind the stack. Scanning the instructions to
figure out if this happened made hasFP not constant-time which is a
violation of expectations. Let's compute this up-front and reuse that
computation when we need it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256730
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David Majnemer [Mon, 4 Jan 2016 03:37:39 +0000 (03:37 +0000)]
[LICM] Make instruction sinking funclet-aware
We had two bugs here:
- We might try to sink into a catchswitch, causing verifier failures.
- We will succeed in sinking into a cleanuppad but we didn't update the
funclet operand bundle.
This fixes PR26000.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256728
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Craig Topper [Mon, 4 Jan 2016 03:15:08 +0000 (03:15 +0000)]
[TableGen] Change TGParser::SetValue to take an ArrayRef instead of std::vector reference. Use None in many places where a default constructed vector was being passed. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256726
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Craig Topper [Mon, 4 Jan 2016 03:05:14 +0000 (03:05 +0000)]
[TableGen] Fix a bug that caused the wrong name for a record built from a multiclass containing a defm called NAME that references another multiclass that contains a defm that uses NAME concatenated with other strings.
It would end up doing the concatenations from the second multiclass twice. This occured because SetValue detected a self assignment when trying to set the value of NAME to a VarInit called NAME. NAME is special here and it will get cleaned up later. So add a flag to suppress the self assignment check for this case.
Strangely the self-assignment error was returning false indicating it wasn't an error, but it wasn't doing the right thing. So this also changes it to report an error.
This fixes the names of some AVX512 FMA instructions that showed this double expansion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256725
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NAKAMURA Takumi [Mon, 4 Jan 2016 00:47:33 +0000 (00:47 +0000)]
llvm/include/llvm/ProfileData/InstrProfData.inc: Add c++-mode in the header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256721
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Dimitry Andric [Sun, 3 Jan 2016 22:33:32 +0000 (22:33 +0000)]
Fix one file that I didn't convert properly in r256707.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256720
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Craig Topper [Sun, 3 Jan 2016 19:43:40 +0000 (19:43 +0000)]
Use std::is_sorted and std::none_of instead of manual loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256719
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Xinliang David Li [Sun, 3 Jan 2016 19:38:51 +0000 (19:38 +0000)]
[PGO] Cleanup: remove reduncant calls in lowering
CoverageMapping data's section and alignment is
already set during creation. No need to call it again
during lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256716
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Xinliang David Li [Sun, 3 Jan 2016 19:26:07 +0000 (19:26 +0000)]
[PGO] Cleanup: Use covmap header definition in the template file
This is one last remaining instrumentatation related structure
that needs to be migrate to use the centralized template
definition. With this change, instrumentation code
related to coverage module header will be kept in sync
with the coverage mapping reader. The remaining code
which makes implicit assumption about covmap control
structure layout in the the lowering pass will cleaned
up in a different patch. This patch is not intended to
have no functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256715
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Simon Pilgrim [Sun, 3 Jan 2016 19:17:37 +0000 (19:17 +0000)]
[X86][MMX] Regenerated vector insertion test.
Shows the true horror of what is going on....
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256713
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Xinliang David Li [Sun, 3 Jan 2016 18:57:40 +0000 (18:57 +0000)]
[PGO] Code refactoring to use header struct def /NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256712
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Xinliang David Li [Sun, 3 Jan 2016 18:35:56 +0000 (18:35 +0000)]
[PGO] Introduce coverage map header structure in PGO data template file /NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256710
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Simon Pilgrim [Sun, 3 Jan 2016 18:24:19 +0000 (18:24 +0000)]
[SelectionDAG] Pulled out common code for CONCAT_VECTORS node creation
Pulled out the similar CONCAT_VECTORS creation code from the 2/3 operand getNode() calls (to handle all UNDEF and all BUILD_VECTOR cases). Added a similar handler to the general getNode() call as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256709
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Simon Pilgrim [Sun, 3 Jan 2016 17:33:32 +0000 (17:33 +0000)]
[X86][SSE] Added tests for insertion of zero elements into vectors
Many of these could be much better if we just lowered them all as shuffles - especially for the 256-bit vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256708
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Dimitry Andric [Sun, 3 Jan 2016 17:22:03 +0000 (17:22 +0000)]
Fix several accidental DOS line endings in source files
Summary:
There are a number of files in the tree which have been accidentally checked in with DOS line endings. Convert these to native line endings.
There are also a few files which have DOS line endings on purpose, and I have set the svn:eol-style property to 'CRLF' on those.
Reviewers: joerg, aaron.ballman
Subscribers: aaron.ballman, sanjoy, dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D15848
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256707
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Simon Pilgrim [Sun, 3 Jan 2016 17:14:15 +0000 (17:14 +0000)]
[X86][SSE41] Added test cases for improving insertps shuffles
As mentioned on D14261, an upcoming patch will improve combines of insertps instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256706
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Simon Pilgrim [Sun, 3 Jan 2016 17:02:56 +0000 (17:02 +0000)]
[X86][SSE] Added v4f32 shuffle with zero tests
This is mainly test cases for improvements to insertps matching, but pre-SSE41 shuffles could be improved as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256705
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Craig Topper [Sun, 3 Jan 2016 08:57:41 +0000 (08:57 +0000)]
[TableGen] Simplify some code slightly. No need to check if the arrays are empty before printing. The loop can be made to print the same thing if the loop is empty. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256703
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Craig Topper [Sun, 3 Jan 2016 08:45:36 +0000 (08:45 +0000)]
Use an ArrayRef to simplify repeated calculation of the array end. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256702
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Craig Topper [Sun, 3 Jan 2016 07:33:45 +0000 (07:33 +0000)]
Use std::is_sorted instead of manual loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256701
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Craig Topper [Sun, 3 Jan 2016 07:33:42 +0000 (07:33 +0000)]
Use range-based for loop. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256700
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Craig Topper [Sun, 3 Jan 2016 07:33:39 +0000 (07:33 +0000)]
[TableGen] Replace a logically negated xor of bools with just an equality comparison for readability. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256699
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Craig Topper [Sun, 3 Jan 2016 07:33:36 +0000 (07:33 +0000)]
[TableGen] Use std::find_if and a lambda instead of manual loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256698
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Craig Topper [Sun, 3 Jan 2016 07:33:34 +0000 (07:33 +0000)]
[TableGen] Fix a bug introduced in r256627. If the switch was not emitted we still emitted a closing curly brace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256697
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Craig Topper [Sun, 3 Jan 2016 07:33:30 +0000 (07:33 +0000)]
[TableGen] Use range-based for loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256696
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Xinliang David Li [Sun, 3 Jan 2016 04:38:13 +0000 (04:38 +0000)]
[PGO] simple refactoring (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256695
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NAKAMURA Takumi [Sun, 3 Jan 2016 01:41:00 +0000 (01:41 +0000)]
WinEHPrepare.cpp: Suppress a warning for -Asserts. [-Wunused-variable]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256694
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Joseph Tremoulet [Sat, 2 Jan 2016 15:50:34 +0000 (15:50 +0000)]
[Verifier] Add braces to satisfy buildbots. NFC
Fix build break introduced by r256691.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256692
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Joseph Tremoulet [Sat, 2 Jan 2016 15:25:25 +0000 (15:25 +0000)]
[WinEH] Verify catchswitch handlers
Summary:
The handler list must be nonempty and consist solely of CatchPads.
Reviewers: rnk, andrew.w.kaylor, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15842
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256691
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Joseph Tremoulet [Sat, 2 Jan 2016 15:24:24 +0000 (15:24 +0000)]
[WinEH] Tighten parentPad verifier checks
Summary: A catchswitch cannot be a parent of a cleanuppad or another catchswitch.
Reviewers: rnk, andrew.w.kaylor, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15841
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256690
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Joseph Tremoulet [Sat, 2 Jan 2016 15:22:36 +0000 (15:22 +0000)]
[WinEH] Update catchrets with cloned successors
Summary:
Add a pass to update catchrets when their successors get cloned; the
existing pass doesn't catch these because it walks the funclet whose
blocks are being cloned but the catchret is in a child funclet.
Also update the test for removing incoming PHI values; when the
predecessor is a catchret, the relevant color is the catchret's parentPad,
not its block's color.
Reviewers: andrew.w.kaylor, rnk, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15840
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256689
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Yaron Keren [Sat, 2 Jan 2016 13:40:36 +0000 (13:40 +0000)]
Correct misleading formatting of several ifs followed by two statements without braces.
While the original code would work with or without braces, it makes sense to
set HaveSemi to true only if (!HaveSemi), otherwise it's already true, so I
put the assignment inside the if block. This addresses PR25998.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256688
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David Majnemer [Sat, 2 Jan 2016 09:26:36 +0000 (09:26 +0000)]
[WinEH] Add additional verification
Recolor the IR to make sure our computed colors are not hiding any bugs.
Also, verifyFunction if we are running some post-preparation operations;
some of these operations can hide latent bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256687
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David Majnemer [Fri, 1 Jan 2016 06:50:01 +0000 (06:50 +0000)]
[X86] Add intrinsics for reading and writing to the flags register
LLVM's targets need to know if stack pointer adjustments occur after the
prologue. This is needed to correctly determine if the red-zone is
appropriate to use or if a frame pointer is required.
Normally, LLVM can figure this out very precisely by reasoning about the
contents of the MachineFunction. There is an interesting corner case:
inline assembly.
The vast majority of inline assembly which will perform a push or pop is
done so to pair up with pushf or popf as appropriate. Unfortunately,
this inline assembly doesn't mark the stack pointer as clobbered
because, well, it isn't. The stack pointer is decremented and then
immediately incremented. Because of this, LLVM was changed in r256456
to conservatively assume that inline assembly contain a sequence of
stack operations. This is unfortunate because the vast majority of
inline assembly will not end up manipulating the stack pointer in any
way at all.
Instead, let's provide a more principled solution: an intrinsic.
FWIW, other compilers (MSVC and GCC among them) also provide this
functionality as an intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256685
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Sanjay Patel [Thu, 31 Dec 2015 23:40:59 +0000 (23:40 +0000)]
[LibCallSimplifier] propagate FMF when shrinking binary calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256682
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Craig Topper [Thu, 31 Dec 2015 22:40:48 +0000 (22:40 +0000)]
[X86] Remove a return after llvm_unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256681
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Craig Topper [Thu, 31 Dec 2015 22:40:45 +0000 (22:40 +0000)]
[X86] Move shuffle decoding for constant pool into the X86CodeGen library to remove a layering violation in the Util library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256680
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Sanjay Patel [Thu, 31 Dec 2015 21:52:31 +0000 (21:52 +0000)]
[LibCallSimplifier] propagate FMF when shrinking unary calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256679
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Sanjay Patel [Thu, 31 Dec 2015 21:25:25 +0000 (21:25 +0000)]
change function names to avoid accidentally matching the substring
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256678
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Sanjay Patel [Thu, 31 Dec 2015 21:12:19 +0000 (21:12 +0000)]
add 'fast' attribute to calls to show that the flag isn't being propagated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256677
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Sanjay Patel [Thu, 31 Dec 2015 16:16:58 +0000 (16:16 +0000)]
Variable names start with an upper case letter; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256676
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Sanjay Patel [Thu, 31 Dec 2015 16:10:49 +0000 (16:10 +0000)]
fix formatting; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256675
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Sanjay Patel [Thu, 31 Dec 2015 15:39:34 +0000 (15:39 +0000)]
add FMF for CreateCall variant
The version with OpBundles was missed in:
http://reviews.llvm.org/rL255555
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256674
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Michael Zuckerman [Thu, 31 Dec 2015 15:22:04 +0000 (15:22 +0000)]
[AVX512] add PSRLQ and PSRLD Intrinsic
Differential Revision: http://reviews.llvm.org/D15770
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256673
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Michael Kuperstein [Thu, 31 Dec 2015 09:45:16 +0000 (09:45 +0000)]
[X86] Avoid folding scalar loads into unary sse intrinsics
Not folding these cases tends to avoid partial register updates:
sqrtss (%eax), %xmm0
Has a partial update of %xmm0, while
movss (%eax), %xmm0
sqrtss %xmm0, %xmm0
Has a clobber of the high lanes immediately before the partial update,
avoiding a potential stall.
Given this, we only want to fold when optimizing for size.
This is consistent with the patterns we already have for some of
the fp/int converts, and in X86InstrInfo::foldMemoryOperandImpl()
Differential Revision: http://reviews.llvm.org/D15741
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256671
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Asaf Badouh [Thu, 31 Dec 2015 08:31:13 +0000 (08:31 +0000)]
[X86][PKU] Add {RD,WR}PKRU intrinsics
Differential Revision: http://reviews.llvm.org/D15808
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256670
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Craig Topper [Thu, 31 Dec 2015 08:18:23 +0000 (08:18 +0000)]
[TableGen] Modify the AsmMatcherEmitter to only apply the table growth from r252440 to the Hexagon target.
This restores the previous behavior of not including the mnemonic in the classes table for every target that starts instruction lines with the mnemonic. Not only did the table size increase by 1 entry, but the class enum increased in size which caused every class in the array to increase in size. It also grew the size of the function that parsers tokens into classes by a substantial amount.
This adds a new HasMnemonicFirst flag to all AsmParsers. It's set to 1 by default and Hexagon target overrides it to 0.
For the X86 target alone this recovers 324KB of size on the llvm-mc executable.
I believe the current state is still a bad design choice for the Hexagon target as it causes most of the parsing to do a linear search through the entire match table to comparing operands against every instruction until it finds one that works. At least for the other targets we do a binary search based on mnemonic over which to do the linear scan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256669
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Craig Topper [Thu, 31 Dec 2015 08:18:20 +0000 (08:18 +0000)]
[TableGen] Use range-based for loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256668
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Xinliang David Li [Thu, 31 Dec 2015 07:57:16 +0000 (07:57 +0000)]
[PGO]: Implement Func PGO name string compression
This is part of the effort/prepration to reduce the size
instr-pgo (object, binary, memory footprint, and raw data).
The functionality is currently off by default and not yet
used by any clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256667
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Craig Topper [Thu, 31 Dec 2015 05:01:45 +0000 (05:01 +0000)]
[TableGen] Move determination of IsIsolatedToken into the tokenizer instead of trying to search characters around the token. No functional change intended. Verified for in-tree targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256660
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Chandler Carruth [Wed, 30 Dec 2015 23:37:25 +0000 (23:37 +0000)]
Revert "Revert "[ptr-traits] Implement the base pointer traits using the actual""
This reverts commit r256642 and restores r256620 now that Tobias has
updated Polly.
There are still some potential problems with the code in Polly that I've
sent post-commit review about, but they're unlikely to break anything in
practice, and I'd like to avoid the rest of LLVM and Clang regressing
here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256656
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Sanjay Patel [Wed, 30 Dec 2015 22:40:52 +0000 (22:40 +0000)]
[ValueTracking] fix bug computing isKnownToBeAPowerOfTwo() with arithmetic shift right (PR25900)
This is a fix for:
https://llvm.org/bugs/show_bug.cgi?id=25900
If we think that an arithmetic right shift of a power of two is always a power of two,
an sdiv gets wrongly converted to udiv.
Differential Revision: http://reviews.llvm.org/D15827
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256655
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Teresa Johnson [Wed, 30 Dec 2015 21:13:55 +0000 (21:13 +0000)]
[ThinLTO] Rename variables used in metadata linking (NFC)
As suggested in review for r255909, rename MDMaterialized to AllowTemps,
and identify the name of the boolean flag being set in calls to
saveMetadataList.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256653
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Teresa Johnson [Wed, 30 Dec 2015 19:32:24 +0000 (19:32 +0000)]
Ensure MDNode used as key in metadata linking map cannot be RAUWed
As suggested in review for r255909, add a way to ensure that temporary
MD used as keys in the MetadataToID map during ThinLTO importing are not
RAUWed.
Add support for marking an MDNode as not replaceable. Clear the new
CanReplace flag when adding a temporary MD node to the MetadataToID map
and clear it when destroying the map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256648
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Teresa Johnson [Wed, 30 Dec 2015 19:13:57 +0000 (19:13 +0000)]
[ThinLTO] Check MDNode values saved for metadata linking (NFC)
Add an assert suggested in review for r255909 to ensure that MDNodes
saved in the map used for metadata linking are either temporary or
resolved.
Also add a comment clarifying why we may need to save off non-MDNode
metadata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256646
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Sanjay Patel [Wed, 30 Dec 2015 18:31:30 +0000 (18:31 +0000)]
fix formatting; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256645
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Tobias Grosser [Wed, 30 Dec 2015 14:02:58 +0000 (14:02 +0000)]
Revert "[ptr-traits] Implement the base pointer traits using the actual"
The commit we revert is rather small, but it enables a larger piece of new
infrastructure that allows to detected misuses of pointer-traits at compile
time. Unfortunately, this change breaks with the use of incomplete types (e.g.
in Polly). As I am not aware of a simple fix on the Polly side, I temporarely
revert this commit to clean the bots and sync-up with Chandler how to best
adapt to these recent changes.
This reverts commit https://llvm.org/svn/llvm-project/llvm/trunk@256620.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256642
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Craig Topper [Wed, 30 Dec 2015 06:00:24 +0000 (06:00 +0000)]
[TableGen] Remove unnecessary conversion from StringRef to std::string when outputting to a raw_ostream. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256628
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Craig Topper [Wed, 30 Dec 2015 06:00:22 +0000 (06:00 +0000)]
[TableGen] Remove raw_string_ostream by just emitting the header for the switch the first time we emit a case. If the header was never emitted just print the default at the end. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256627
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Craig Topper [Wed, 30 Dec 2015 06:00:20 +0000 (06:00 +0000)]
[TableGen] Use range-based for loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256626
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Craig Topper [Wed, 30 Dec 2015 06:00:18 +0000 (06:00 +0000)]
[TableGen] Move more things that come from variant into the AsmVariantInfo class so we can reduce some parameters. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256625
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Craig Topper [Wed, 30 Dec 2015 06:00:15 +0000 (06:00 +0000)]
[TableGen] Use 'size_t' instead of 'unsigned' to better match the argument types of addAsmOperand. Simplify some code by using StringRef::find instead of std::find. These were previously done in r247527 and r247528, but another commit seems to have erased them. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256624
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