[NVPTX] Clean up nested !strconcat calls.

!strconcat is a variadic function; it will concatenate an arbitrary
number of strings.  There's no need to nest it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292305 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Implement min/max in tablegen, rather than with custom DAGComine logic.

Summary:
This change also lets us use max.{s,u}16.  There's a vague warning in a
test about this maybe being less efficient, but I could not come up with
a case where the resulting SASS (sm_35 or sm_60) was different with or
without max.{s,u}16.  It's true that nvcc seems to emit only
max.{s,u}32, but even ptxas 7.0 seems to have no problem generating
efficient SASS from max.{s,u}16 (the casts up to i32 and back down to
i16 seem to be implicit and nops, happening via register aliasing).

In the absence of evidence, better to have fewer special cases, emit
more straightforward code, etc.  In particular, if a new GPU has 16-bit
min/max instructions, we want to be able to use them.

Reviewers: tra

Subscribers: jholewinski, llvm-commits

Differential Revision: https://reviews.llvm.org/D28732

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292304 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Lower integer absolute value idiom to abs instruction.

Summary: Previously we lowered it literally, to shifts and xors.

Reviewers: tra

Subscribers: jholewinski, llvm-commits

Differential Revision: https://reviews.llvm.org/D28722

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292303 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Improve lowering of llvm.ctpop.

Summary:
Avoid an unnecessary conversion operation when using the result of
ctpop.i32 or ctpop.i16 as an i32, as in both cases the ptx instruction
we run returns an i32.

(Previously if we used the value as an i32, we'd do an unnecessary
zext+trunc.)

Reviewers: tra

Subscribers: jholewinski, llvm-commits

Differential Revision: https://reviews.llvm.org/D28721

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292302 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Add lowering for llvm.bitreverse.

Reviewers: tra

Subscribers: llvm-commits, jholewinski

Differential Revision: https://reviews.llvm.org/D28720

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292301 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Fix function names in ctlz.ll test.  Test-only change.

Looks like a copy/paste mistake, all the functions in ctlz.ll were named
"ctpop".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292300 91177308-0d34-0410-b5e6-96231b3b80d8

[NVPTX] Improve lowering of llvm.ctlz.

Summary:
* Disable "ctlz speculation", which inserts a branch on every ctlz(x) which
  has defined behavior on x == 0 to check whether x is, in fact zero.

* Add DAG patterns that avoid re-truncating or re-expanding the result
  of the 16- and 64-bit ctz instructions.

Reviewers: tra

Subscribers: llvm-commits, jholewinski

Differential Revision: https://reviews.llvm.org/D28719

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292299 91177308-0d34-0410-b5e6-96231b3b80d8

[IR] Grammar police: "intact" is one word.  NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292298 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] add tests to show missed shrinkage; NFC

A patch to partially solve this:
https://reviews.llvm.org/D28625

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292296 91177308-0d34-0410-b5e6-96231b3b80d8

[libFuzzer] add ATTRIBUTE_NO_SANITIZE_MEMORY to sanitizer hooks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292295 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce -unroll-partial-threshold to separate PartialThreshold from Threshold in loop unorller.

Summary: Partial unrolling should have separate threshold with full unrolling.

Reviewers: efriedma, mzolotukhin

Reviewed By: efriedma, mzolotukhin

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D28831

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292293 91177308-0d34-0410-b5e6-96231b3b80d8

[RegisterCoalescing] Remove partial redundent copy.

The patch is to solve the performance problem described in PR27827.
Register coalescing sometimes cannot remove a copy because of interference.
But if we can find a reverse copy in one of the predecessor block of the copy,
the copy is partially redundent and we may remove the copy partially by moving
it to the predecessor block without the reverse copy.

Differential Revision: https://reviews.llvm.org/D28585

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292292 91177308-0d34-0410-b5e6-96231b3b80d8

Fix GettingStarted doc so that the example build command for cmake LLVM_ENABLE_PROJECTS works on linux

I tested the previous one on macOS, however building libc++ on Linux
requires libcxxabi as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292290 91177308-0d34-0410-b5e6-96231b3b80d8

[libfuzzer] fixing collected pc addresses for coverage

Summary: The causes google/ossfuzz#84

Reviewers: kcc

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D28827

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292289 91177308-0d34-0410-b5e6-96231b3b80d8

[ADT] Add SparseBitVector::find_last().

Differential Revision: https://reviews.llvm.org/D28817

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292288 91177308-0d34-0410-b5e6-96231b3b80d8

[libFuzzer] use table of recent compares for memcmp/strcmp (to unify the code between cmp and memcmp handling)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292287 91177308-0d34-0410-b5e6-96231b3b80d8

[libFuzzer] copy the options inside MutationDispatcher to avoid use-after-scope in mutator tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292286 91177308-0d34-0410-b5e6-96231b3b80d8

GlobalISel: fix comparison order for G_FCMP

As with G_ICMP we'd written the CSET instructions backwards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292285 91177308-0d34-0410-b5e6-96231b3b80d8

GlobalISel: add callseq instructions to record stack usage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292284 91177308-0d34-0410-b5e6-96231b3b80d8

GlobalISel: correctly handle varargs

Some platforms (notably iOS) use a different calling convention for unnamed vs
named parameters in varargs functions, so we need to keep track of this
information when translating calls.

Since not many platforms are involved, the guts of the special handling is in
the ValueHandler class (with a generic implementation that should work for most
targets).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292283 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopDeletion] (cleanup, NFC) Use the dedicated helper to get a single
unique exit block if available rather than rolling it ourselves.

This is a little disappointing because that helper doesn't do anything
clever to short-circuit the (surprisingly expensive) computation of all
exit blocks. What's worse is that the way we compute this is hopelessly,
hilariously inefficient. We're literally computing the same information
two different ways and multiple times each way:
- hasDedicatedExits computes the exit block set and then looks at the
  predecessors of each
- getExitingBlocks computes the set of loop blocks which have exiting
  successors
- getUniqueExitBlock(s) computes the set of non-loop blocks reached from
  loop blocks (sound familiar?)

Anyways, at some point we should clean all of this up in the LoopInfo
API, but for now just simplifying the user I'm about to touch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292282 91177308-0d34-0410-b5e6-96231b3b80d8

[LV] Add requires asserts to test case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292280 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopDeletion] (cleanup, NFC) Fix another variable name to match LLVM
conventions, missed this one in a previous cleanup patch (sorry).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292279 91177308-0d34-0410-b5e6-96231b3b80d8

[GlobalISel] track predecessor mapping during switch lowering.

Correctly populating Machine PHIs relies on knowing exactly how the IR level
CFG was lowered to MachineIR. This needs to be tracked by any translation
phases that meddle (currently only SwitchInst handling).

This reapplies r291973 which was reverted because of testing failures. Fixes:

 + Don't return an ArrayRef to a local temporary.
 + Incorporate Kristof's suggested comment improvements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292278 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE] Split UMIN and UMAX known bits tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292277 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopDeletion] (cleanup, NFC) Remove a pointless comment.

I hope that for any code, it is changed only with good reason and only
when the author knows what they are doing...

There is of course good reason to comment here about the subtlety of the
process, and I've left that comment in tact.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292275 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopDeletion] (cleanup, NFC) Make simple helper functions static
instead of members.

No state was being provided by the object so this seems strictly
simpler.

I've also tried to improve the name and comments for the functions to
more thoroughly document what they are doing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292274 91177308-0d34-0410-b5e6-96231b3b80d8

[LoopDeletion] (cleanup, NFC) Stop passing around reference to a vector
that we know has exactly one element when all we are going to do is get
that one element out of it.

Instead, pass around that one element.

There are more simplifications to come in this code...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292273 91177308-0d34-0410-b5e6-96231b3b80d8

[PM] Clean up variable and parameter names to match modern LLVM naming
conventions more conistently before hacking on this code to integrate
nicely with new PM's loop pass infrastructure. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292272 91177308-0d34-0410-b5e6-96231b3b80d8

Silence some Sphinx diagnostics in an attempt to get the documentation builder back to green (lab.llvm.org:8011/builders/llvm-sphinx-docs/builds/1895).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292271 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for LICM when promoting locals that may be read after the throw within the loop. NFCI.

Summary: Add a test case for LICM when promoting locals that may be read after the throw within the loop.

Reviewers: eli.friedman, hfinkel, sanjoy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D28822

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292261 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] refactor foldICmpShlConstant(); NFCI

This reduces the size of and increases the symmetry with the planned functional change in:
https://reviews.llvm.org/D28406

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292260 91177308-0d34-0410-b5e6-96231b3b80d8

[bpf] fix stack-use-after-scope

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292258 91177308-0d34-0410-b5e6-96231b3b80d8

Enabled -fsanitize-address-use-after-scope for -DLLVM_USE_SANITIZER=Address

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D28823

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292256 91177308-0d34-0410-b5e6-96231b3b80d8

[cmake] Update SOVERSION for the new versioning scheme

Update SOVERSION to use just the major version number rather than
major+minor, to match the new versioning scheme where only major is used
to indicate API/ABI version.

Since two-digit SOVERSIONs were introduced post 3.9 branching, this
change does not risk any SOVERSION collisions. In the past,
two-component X.Y SOVERSIONs were shortly used but those will not
interfere with the new ones since the new versions start at 4.

Differential Revision: https://reviews.llvm.org/D28730

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292255 91177308-0d34-0410-b5e6-96231b3b80d8

[LV] Mark non-consecutive-like pointers non-uniform

If a memory instruction will be vectorized, but it's pointer operand is
non-consecutive-like, the instruction is a gather or scatter operation. Its
pointer operand will be non-uniform. This should fix PR31671.

Reference: https://llvm.org/bugs/show_bug.cgi?id=31671
Differential Revision: https://reviews.llvm.org/D28819

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292254 91177308-0d34-0410-b5e6-96231b3b80d8

[WebAssembly] Add triple support for the new wasm object format

Differential Revision: https://reviews.llvm.org/D26701

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292252 91177308-0d34-0410-b5e6-96231b3b80d8

Rename scalar_promote.ll to scalar-promote.ll and scalar_promote-unwind.ll to scalar-promote-unwind.ll. NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292251 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor out LoopInfo computation so that it can be used by
other test cases.

Summary: Refactor out LoopInfo computation so that it can be
used by other test cases.

So i am changing this test proactively for later commit, which will use
this function.

Reviewers: sanjoy, hfinkel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D28778

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292250 91177308-0d34-0410-b5e6-96231b3b80d8

[EarlyCSE] Don't DSE across readnone functions that may throw

Summary: Depends on D28740

Reviewers: dberlin, chandlerc, hfinkel, majnemer

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D28741

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292249 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] add tests for shl nsw + icmp sle; NFC

We want to handle these cases similarly to icmp sgt, so add the tests for it.
See: https://reviews.llvm.org/D28406

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292248 91177308-0d34-0410-b5e6-96231b3b80d8

[TLI] Appease spurious MSVC warning using llvm_unreachable. NFC.

r292188 confused MSVC because of the combined lack of a default
case and return statement.

Move the unreachable outside of the NumLibFuncs case, to make it
obvious that all cases should be handled.

llvm_unreachable is __declspec(noreturn), so I'm assuming this
does appease MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292246 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an overeager assert from r288844.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292244 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r291640 change to fold X86 comparison with atomic_load_add.

Even with the fix from r291630, this still causes problems. I get
widespread assertion failures in the Swift runtime's WeakRefCount::increment()
function. I sent a reduced testcase in reply to the commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292242 91177308-0d34-0410-b5e6-96231b3b80d8

[PM] Teach the LoopPassManager to automatically canonicalize loops by
runnig LCSSA over them prior to running the loop pipeline.

This also teaches the loop PM to verify that LCSSA form is preserved
throughout the pipeline's run across the loop nest.

Most of the test updates just leverage this new functionality. One has to be
relaxed with the new PM as IVUsers is less powerful when it sees LCSSA input.

Differential Revision: https://reviews.llvm.org/D28743

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292241 91177308-0d34-0410-b5e6-96231b3b80d8

[ValueTracking] recognize a 'not' of an assumed condition as false

Also, add the corresponding match to the AssumptionCache's 'Affected Values' list.

Differential Revision: https://reviews.llvm.org/D28485

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292239 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Fold ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2)

This further extends r292179 to support additional binary operators
beyond subtraction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292238 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r292231.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292237 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][AVX512] Add all_of/any_of avx512vl tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292235 91177308-0d34-0410-b5e6-96231b3b80d8

[ValueTracking] Extend known bits to understand @llvm.bitreverse.

Differential Revision: https://reviews.llvm.org/D28780

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292233 91177308-0d34-0410-b5e6-96231b3b80d8

[lit] Limit parallelism of sanitizer tests on Darwin [llvm part]

Running lit tests and unit tests of ASan and TSan on macOS has very bad performance when running with a high number of threads. This is caused by xnu (the macOS kernel), which currently doesn't handle mapping and unmapping of sanitizer shadow regions (reserved VM which are several terabytes large) very well. The situation is so bad that increasing the number of threads actually makes the total testing time larger. The macOS buildbots are affected by this. Note that we can't easily limit the number of sanitizer testing threads without affecting the rest of the tests.

This patch adds a special "group" into lit, and limits the number of concurrently running tests in this group. This helps solve the contention problem, while still allowing other tests to run in full, that means running lit with -j8 will still with 8 threads, and parallelism is only limited in sanitizer tests.

Differential Revision: https://reviews.llvm.org/D28420

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292231 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] reduce indent; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292230 91177308-0d34-0410-b5e6-96231b3b80d8

Recommit r292214 "[Support/Compression] - Change zlib API to return Error instead of custom status"

No any changes, will follow up with D28807 commit containing APLi change for clang
to fix build issues happened.

Original commit message:
[Support/Compression] - Change zlib API to return Error instead of custom status.

Previously API returned custom enum values.
Patch changes it to return Error with string description.
That should help users to report errors in universal way.

Differential revision: https://reviews.llvm.org/D28684

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292226 91177308-0d34-0410-b5e6-96231b3b80d8

[AMDGPU] Assembler: fix v_mac_f16 immediates

Reviewers: vpykhtin, artem.tamazov, tstellarAMD

Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, tony-tye

Differential Revision: https://reviews.llvm.org/D28802

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292224 91177308-0d34-0410-b5e6-96231b3b80d8

[X86][SSE] Tests showing horizontal all_of/any_of of vector comparison results

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292223 91177308-0d34-0410-b5e6-96231b3b80d8

[llvm-objdump tests] Copy the inputs of tests closer to tests.

Summary:
Tests under tools/llvm-objdump should not use inputs from Object. Copied the
required inputs and aligned the new tests to be more consistent with the existing
tests in this respect.

Reviewers: ioeric

Reviewed By: ioeric

Subscribers: davide, djasper, cfe-commits

Differential Revision: https://reviews.llvm.org/D28799

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292222 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r292214 "[Support/Compression] - Change zlib API to return Error instead of custom status."

It broked clang:
http://lab.llvm.org:8080/green//job/clang-stage1-cmake-RA-incremental_build/34218/consoleFull#46141505449ba4694-19c4-4d7e-bec5-911270d8a58c

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292217 91177308-0d34-0410-b5e6-96231b3b80d8

BrainF example: fixing output buffering issue
Differential Revision: https://reviews.llvm.org/D27824

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292216 91177308-0d34-0410-b5e6-96231b3b80d8

[Support/Compression] - Change zlib API to return Error instead of custom status.

Previously API returned custom enum values.
Patch changes it to return Error with string description.
That should help users to report errors in universal way.

Differential revision: https://reviews.llvm.org/D28684

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292214 91177308-0d34-0410-b5e6-96231b3b80d8

[XRay][Arm] Repair XRay table emission on Arm32 and add tests to identify such problem earlier

Summary:
Emission of XRay table was occasionally disabled for Arm32, but this bug was not then detected because earlier (also by mistake) testing of XRay was occasionally disabled on 32-bit Arm targets. This patch should fix that problem and detect such problems in the future.
This patch is one of a series, see also
- https://reviews.llvm.org/D28623

Reviewers: rengolin, dberris

Reviewed By: dberris

Subscribers: llvm-commits, aemerson, rengolin, dberris, iid_iunknown

Differential Revision: https://reviews.llvm.org/D28624

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292210 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine][X86][AVX] Add DemandedElts support for VPERMILPD/VPERMILPS instructions

Simplify a vpermilvar shuffle mask based on the elements of the mask that are actually demanded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292209 91177308-0d34-0410-b5e6-96231b3b80d8

Update the release tester for MIPS. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292208 91177308-0d34-0410-b5e6-96231b3b80d8

Remove pid_t usage from llvm-xray

This type is not available on windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292206 91177308-0d34-0410-b5e6-96231b3b80d8

AMDGPU: Add replacement export intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292205 91177308-0d34-0410-b5e6-96231b3b80d8

[bpf] error when unknown bpf helper is called

Emit error when BPF backend sees a call to a global function or to an external symbol.
The kernel verifier only allows calls to predefined helpers from bpf.h
which are defined in 'enum bpf_func_id'. Such calls in assembler must
look like 'call [1-9]+' where number matches bpf_func_id.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292204 91177308-0d34-0410-b5e6-96231b3b80d8

[utils] Add libc++ and libc++abi config to llvm-lit

This allows us to use bin/llvm-lit to run individual libc++ and
libc++abi tests without having to explicitly specify the site config
paths, similar to other projects.

Differential Revision: https://reviews.llvm.org/D28733

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292203 91177308-0d34-0410-b5e6-96231b3b80d8

[AVX-512] Add support for taking a bitcast between a SUBV_BROADCAST and VSELECT and moving it to the input of the SUBV_BROADCAST if it will help with using a masked operation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292201 91177308-0d34-0410-b5e6-96231b3b80d8

[AVX-512] Add test cases showing missed opportunities to fold subvector broadcasts with a mask operation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292200 91177308-0d34-0410-b5e6-96231b3b80d8

llc: Update link components

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292198 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Don't DSE across readnone functions that may throw

Summary: Depends on D28740

Reviewers: dberlin, chandlerc, hfinkel, majnemer

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D28742

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292197 91177308-0d34-0410-b5e6-96231b3b80d8

llc: Update LLVMBuild

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292196 91177308-0d34-0410-b5e6-96231b3b80d8

llc: Initialize more passes

Targets can add these. Initialize them so -print-before/-print-after
etc. work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292195 91177308-0d34-0410-b5e6-96231b3b80d8

[Orc][RPC] Return unsupported rpc function errors from the non-retry cases in
negotiateFunction.

These cases were accidentally left out of r292055, resulting in a less
descriptive ECError being returned on these paths.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292193 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "[TLI] Robustize SDAG proto checking by merging it into TLI."

This reverts commit r292189, as it causes issues on SystemZ bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292191 91177308-0d34-0410-b5e6-96231b3b80d8

[TLI] Robustize SDAG proto checking by merging it into TLI.

SelectionDAGBuilder recognizes libfuncs using some homegrown
parameter type-checking.

Use TLI instead, removing another heap of redundant code.

This isn't strictly NFC, as the SDAG code was too lax.
Concretely, this means changes are required to two tests:
- calling a non-variadic function via a variadic prototype isn't OK;
  it just happens to work on x86_64 (but not on, e.g., aarch64).
- mempcpy has a size_t parameter;  the SDAG code accepts any integer
  type, which meant using i32 on x86_64 worked.

I don't think it's worth supporting either of these (IMO) broken
testcases.  Instead, fix them to be more correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292189 91177308-0d34-0410-b5e6-96231b3b80d8

[TLI] Add prototype checking for all remaining LibFuncs.

This is another step towards unifying all LibFunc prototype checks.
This work started in r267758 (D19469);  add the remaining checks.

Also add a unittest that checks each libfunc declared with a known-valid
and known-invalid prototype.  New libfuncs added in the future are
required to have prototype checking in place; the known-valid test will
fail otherwise.

Differential Revision: https://reviews.llvm.org/D28030

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292188 91177308-0d34-0410-b5e6-96231b3b80d8

[TLI] Alphabetize some of the prototype check switch. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292187 91177308-0d34-0410-b5e6-96231b3b80d8

[unittests] Alphabetize cmake file list. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292186 91177308-0d34-0410-b5e6-96231b3b80d8

[bpf] error when BPF stack size exceeds 512 bytes

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292180 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] Fold ((C1-zext(X)) & C2) -> zext((C1-X) & C2)

This is valid if C2 fits within the bitwidth of X thanks to two's
complement modulo arithmetic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292179 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment to test file I forgot to save

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292178 91177308-0d34-0410-b5e6-96231b3b80d8

SimplifyLibCalls: Remove checks for fabs

Use the intrinsic instead of emitting the libcall which
will be replaced by the intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292176 91177308-0d34-0410-b5e6-96231b3b80d8

AMDGPU: Remove dead pattern

This is the unsafe conversion pattern, but not guarded by
an unsafe math check. It is also already done in LegalizeDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292173 91177308-0d34-0410-b5e6-96231b3b80d8

SimplifyLibCalls: Replace fabs libcalls with intrinsics

Add missing fabs(fpext) optimzation that worked with the call,
and also fixes it creating a second fpext when there were multiple
uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292172 91177308-0d34-0410-b5e6-96231b3b80d8

[Object] Fixup permissions of input files.

They just need to be read/dumped, so no need to set the exec
bit on any of them. NFCI, I guess.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292171 91177308-0d34-0410-b5e6-96231b3b80d8

[llvm-objdump] Dump PT_NOTE as part of -p.

PR: 31641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292170 91177308-0d34-0410-b5e6-96231b3b80d8

[llvm-objdump] Dump PT_GNU_RELRO as part of -p.

PR: 31641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292169 91177308-0d34-0410-b5e6-96231b3b80d8

[llvm-objdump] Dump PT_OPENBSD_{BOOTDATA,RANDOMIZE,WXNEEDED}.

PR: 31641

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292167 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing header to see if that clears up the build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292166 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine][AVX] Tests showing missed opportunities to pass demanded elts through a permilpd/permilps shuffle mask

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292165 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] use m_APInt instead of faking it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292164 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to fix the MSVC build by using llvm::errc instead of std::errc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292163 91177308-0d34-0410-b5e6-96231b3b80d8

ADMGPU/EG,CM: Implement _noret global atomics

_RTN versions will be a lot more complicated

Differential Revision: https://reviews.llvm.org/D28067

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292162 91177308-0d34-0410-b5e6-96231b3b80d8

[XRay] Implement the `llvm-xray graph` subcommand

Here we define the `graph` subcommand which generates a graph from the function
call information and uses it to present the call information graphically with
additional annotations.

Reviewers: dblaikie, dberris

Differential Revision: https://reviews.llvm.org/D27243

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292156 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to workaround MSVC build issue where I suspect an enum class constant 0 is considered a possible null pointer

I can't reproduce this so far with web compilers, so throwing this at
the bots to see if it sticks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292155 91177308-0d34-0410-b5e6-96231b3b80d8

[PowerPC] Expand ISEL instruction into if-then-else sequence.

Generally, the ISEL is expanded into if-then-else sequence, in some
cases (like when the destination register is the same with the true
or false value register), it may just be expanded into just the if
or else sequence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292154 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] fix names in canEvaluateShiftedShift(); NFC

It's not clear what 'First' and 'Second' mean, so use 'Inner' and 'Outer'
to match foldShiftedShift() and add comments with formulas, so it's easier
to see what's going on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292153 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] use m_APInt to allow shift-shift folds for vectors with splat constants

Some existing 'FIXME' tests are still not folded because of splat holes in value tracking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292151 91177308-0d34-0410-b5e6-96231b3b80d8

[InstCombine] add tests to show missed vector folds; NFC

The shift-shift possibilities became easier to see after:
https://reviews.llvm.org/rL292145

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292150 91177308-0d34-0410-b5e6-96231b3b80d8

PR31650: Refer to enum constant when initializing llvm::None constant

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292149 91177308-0d34-0410-b5e6-96231b3b80d8