Commit Graph

299359 Commits

Author SHA1 Message Date
Sanjay Patel 83a1b66c43 [x86] add test with optsize attribute for scalar->vector transform; NFC
llvm-svn: 342755
2018-09-21 18:03:49 +00:00
Rui Ueyama c41985a50e Update release notes.
llvm-svn: 342754
2018-09-21 17:48:45 +00:00
Wouter van Oortmerssen 7beaa30e4e [WebAssembly] Made assembler only use stack instruction tablegen defs
Summary:
This ensures we have the non-register version of the instruction.

The stack version of call_indirect now wants a type index argument,
so that has been added in the existing tests.

Tested:
llvm-lit -v `find test -name WebAssembly`

Reviewers: dschuff

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

Differential Revision: https://reviews.llvm.org/D51662

llvm-svn: 342753
2018-09-21 17:47:58 +00:00
Artem Belevich 2eeb048905 [CUDA] Fixed parsing of optional template-argument-list.
We need to consider all tokens that start with '>' when
we're checking for the end of an empty template argument list.

Differential Revision: https://reviews.llvm.org/D52321

llvm-svn: 342752
2018-09-21 17:46:28 +00:00
Krzysztof Parzyszek 5805def9c8 [Hexagon] Avoid functions with exception handling in HexagonConstExtenders
The constant-extender optimization does a form of code motion, which is
complicated in the presence of exception handling.

llvm-svn: 342751
2018-09-21 17:40:35 +00:00
JF Bastien 72c475276e [NFC] remove unused variable
It was causing a warning.

llvm-svn: 342750
2018-09-21 17:38:41 +00:00
Artem Belevich 78929efb4d [CUDA] Ignore uncallable functions when we check for usual deallocators.
Previously clang considered function variants from both sides of
compilation and that resulted in picking up wrong deallocation function.

Differential Revision: https://reviews.llvm.org/D51808

llvm-svn: 342749
2018-09-21 17:29:33 +00:00
Rui Ueyama a3d0f40964 Update release notes.
llvm-svn: 342748
2018-09-21 17:13:55 +00:00
Kostya Kortchinsky 7bdb0b9493 [sanitizer] Move __sanitizer_set_death_callback to a more appropriate file
Summary:
`__sanitizer_set_death_callback` is a public interface function wrapping
`SetUserDieCallback`. Said function is defined in `sanitizer_termination.cc`,
which is not included in all the RT. Moving the interface function to that
file allows to not have a spurious public fuinction in RT that don't use it.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: kubamracek, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D52363

llvm-svn: 342747
2018-09-21 17:05:56 +00:00
Dimitry Andric c9de3b4d26 Align AArch64 and i386 image base to superpage
Summary:

As for x86_64, the default image base for AArch64 and i386 should be
aligned to a superpage appropriate for the architecture.

On AArch64, this is 2 MiB, on i386 it is 4 MiB.

Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard

Reviewed By: ruiu, peter.smith

Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D50297

llvm-svn: 342746
2018-09-21 16:58:13 +00:00
Dean Michael Berris 0cb22386e0 [XRay][compiler-rt] Update use of internal_mmap
Summary:
The implementation of `internal_mmap(...)` deviates from the contract of
`mmap(...)` -- i.e. error returns are actually the equivalent of `errno`
results. We update how XRay uses `internal_mmap(...)` to better handle
these error conditions.

In the process, we change the default pointers we're using from `char*`
to `uint8_t*` to prevent potential usage of the pointers in the string
library functions that expect to operate on `char*`.

We also take the chance to "promote" sizes of individual `internal_mmap`
requests to at least page size bytes, consistent with the expectations
of calls to `mmap`.

Reviewers: cryptoad, mboerger

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D52361

llvm-svn: 342745
2018-09-21 16:34:42 +00:00
Daniel Sanders f8ecb22dcb [tblgen] Fix undefined behaviour when assigning integers to large bits<n>'s
This code:
  bits<96> X = 0;
was triggering undefined behaviour since it iterates over bits 0..95 and tests
them against the IntInit using 1LL << I.

This patch resolves the undefined behaviour by continuing to treat the IntInit
as a 64-bit value and simply causing all bit tests in excess of 64-bits to report
false. As a result,
  bits<96> X = -1;
will be equivalent to:
  bits<96> X;
  let X{0-63} = -1;
  let X{64-95} = 0;

llvm-svn: 342744
2018-09-21 16:32:49 +00:00
Sameer Sahasrabuddhe 0807e94951 revert changes from r342722
"[AMDGPU] lower-switch in preISel as a workaround for legacy DA"

This broke regression tests. The first breakage was noticed here:
http://lab.llvm.org:8011/builders/lld-x86_64-freebsd/builds/23549

llvm-svn: 342743
2018-09-21 16:31:51 +00:00
Matthias Braun c0ef786004 AArch64FastISel: Abort if we failed to select operand of intrinsic
rdar://44642447

Differential Revision: https://reviews.llvm.org/D52335

llvm-svn: 342742
2018-09-21 15:47:41 +00:00
Alexey Bataev f898d1de4a [OPENMP] Disable emission of the class with vptr if they are not used in
target constructs.

Prevent compilation of the classes with the virtual tables when
compiling for the device.

llvm-svn: 342741
2018-09-21 14:55:26 +00:00
Sanjay Patel 72d627e5ec [InstCombine] add tests for extractelement; NFC
There are folds under visitExtractElementInst() that don't appear
to have any test coverage, so adding a few basic cases here.

llvm-svn: 342740
2018-09-21 14:43:49 +00:00
JF Bastien 19262fc596 [ADT] restrict bit_cast to trivially-constructible To
Summary: As discussed in r341853 by blaikie, the reinterpret_cast was technically an aliasing violation. Restrict our bit_cast implementation to To which are trivially-constructible (and note the existing restriction to constexpr). Once we move to C++17 we can use a version of bit_cast without these restrictions, or if we care we can SFINAE a different implementation when To isn't trivially-constructible.

Originally landed in r342710 and reverted in r342711 because is_trivially_copyable is only in GCC 5.1 and later.

Reviewers: dblaikie, rsmith

Subscribers: dexonsmith, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D52332

llvm-svn: 342739
2018-09-21 14:31:25 +00:00
Alexey Bataev 2adecff1aa [OPENMP][NVPTX] Enable support for lastprivates in SPMD constructs.
Previously we could not use lastprivates in SPMD constructs, patch
allows supporting lastprivates in SPMD with uninitialized runtime.

llvm-svn: 342738
2018-09-21 14:22:53 +00:00
Alexey Bataev 022bf16b41 [OPENMP][NVPTX] Add support for lastprivates/reductions handling in SPMD constructs with lightweight runtime.
Summary:
We need the support for per-team shared variables to support codegen for
lastprivates/reductions. Patch adds this support by using shared memory
if the total size of the reductions/lastprivates is <= 128 bytes,
then  pre-allocated buffer in global memory if size is <= 4K bytes,or
uses malloc/free, otherwise.

Reviewers: gtbercea, kkwli0, grokos

Subscribers: guansong, openmp-commits

Differential Revision: https://reviews.llvm.org/D51875

llvm-svn: 342737
2018-09-21 14:11:41 +00:00
Clement Courbet 8171bd8e0f [X86][Sched] Add zero idiom sched data to the SNB model.
Summary:
On SNB, renamer-based zeroing does not work for:
 - 16 and 8-bit GPRs[1].
 - MMX [2].
 - ANDN variants [3]

[1] echo 'sub %ax, %ax' | /tmp/llvm-exegesis -mode=uops -snippets-file=-
[2] echo 'pxor %mm0, %mm0' | /tmp/llvm-exegesis -mode=uops -snippets-file=-
[3] echo 'andnps %xmm0, %xmm0' | /tmp/llvm-exegesis -mode=uops -snippets-file=-

Reviewers: RKSimon, andreadb

Subscribers: gbedwell, craig.topper, llvm-commits

Differential Revision: https://reviews.llvm.org/D52358

llvm-svn: 342736
2018-09-21 14:07:20 +00:00
Bruno Ricci e12c7e6421 [AST][NFC] DeclarationName.h : add missing parentheses to silence warnings
Some bots are complaining about missing parentheses in assertions added in
r342729: [AST] Various optimizations + refactoring in DeclarationName(Table)

llvm-svn: 342735
2018-09-21 14:03:32 +00:00
JF Bastien 2f0582fcc7 NFC: deduplicate isRepeatedBytePattern from clang to LLVM's isBytewiseValue
Summary:
This code was in CGDecl.cpp and really belongs in LLVM. It happened to have isBytewiseValue which served a very similar purpose but wasn't as powerful as clang's version. Remove the clang version, and augment isBytewiseValue to be as powerful so that clang does the same thing it used to.

LLVM part of this patch: D51751

Subscribers: dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D51752

llvm-svn: 342734
2018-09-21 13:54:09 +00:00
Tatyana Krasnukha af2c73e13d Add dependency on llc required by find-variable-dwo test
llvm-svn: 342733
2018-09-21 13:40:22 +00:00
Tatyana Krasnukha ec9a6a2701 Skip test if gcc version is less than 7.1 since it doesn't support -gcolumn-info option
llvm-svn: 342732
2018-09-21 13:20:26 +00:00
Bruno Ricci 5c649d3a91 [AST][NFC] Remove a superfluous enum in ObjCMethodDeclBitfields added in r338641
I originally added this enum to avoid including Basic/IdentifierTable.h
in AST/DeclBase.h. However I did not realise it is already included
transitively by AST/DeclarationName.h. Therefore remove this enum and
explicitly include Basic/IdentifierTable.h

llvm-svn: 342731
2018-09-21 13:11:39 +00:00
Eric Liu c275fb2a5d [clangd] Remember to serialize symbol origin in YAML.
llvm-svn: 342730
2018-09-21 13:04:57 +00:00
Bruno Ricci 366ba73018 [AST] Various optimizations + refactoring in DeclarationName(Table)
Introduce the following optimizations in DeclarationName(Table):

 1. Store common kinds inline in DeclarationName instead of
    DeclarationNameExtra. Currently the kind of C++ constructor, destructor,
    conversion function and overloaded operator names is stored in
    DeclarationNameExtra. Instead store it inline in DeclarationName.
    To do this align IdentifierInfo, CXXSpecialName, DeclarationNameExtra
    and CXXOperatorIdName to 8 bytes so that we can use the lower 3 bits of
    DeclarationName::Ptr. This is already the case on 64 bits archs anyway.
    This also allow us to remove DeclarationNameExtra from CXXSpecialName
    and CXXOperatorIdName, which shave off a pointer from CXXSpecialName. 

 2. Synchronize the enumerations DeclarationName::NameKind,
    DeclarationName::StoredNameKind and Selector::IdentifierInfoFlag.
    This makes DeclarationName::getNameKind much more efficient since we can
    replace the switch table by a single comparison and an addition.

 3. Put the overloaded operator names inline in DeclarationNameTable to remove
    an indirection. This increase the size of DeclarationNameTable a little
    bit but this is not important since it is only used in ASTContext, and
    never copied nor moved from. This also get rid of the last dynamic
    allocation in DeclarationNameTable.

Altogether these optimizations cut the run time of parsing all of Boost by
about 0.8%. While we are at it, do the following NFC modifications:

 1. Put the internal classes CXXSpecialName, CXXDeductionGuideNameExtra,
    CXXOperatorIdName, CXXLiteralOperatorIdName and DeclarationNameExtra
    in a namespace detail since these classes are only meant to be used by
    DeclarationName and DeclarationNameTable. Make this more explicit by making
    the members of these classes private and friending DeclarationName(Table).

 2. Make DeclarationName::getFETokenInfo a non-template since every users are
    using it to get a void *. It was supposed to be used with a type to avoid
    a subsequent static_cast.

 3. Change the internal functions DeclarationName::getAs* to castAs* since when
    we use them we already know the correct kind. This has no external impact
    since all of these are private.

Reviewed By: erichkeane, rjmccall

Differential Revision: https://reviews.llvm.org/D52267

llvm-svn: 342729
2018-09-21 12:53:22 +00:00
Andrea Di Biagio 4cd5cf9fc8 [X86][BtVer2] Fix latency and resource cycles of AVX 256-bit zero-idioms.
This patch introduces a SchedWriteVariant to describe zero-idiom VXORP(S|D)Yrr
and VANDNP(S|D)Yrr.

This is a follow-up of r342555.

On Jaguar, a VXORPSYrr is 2 macro opcodes. Only one opcode is eliminated at
register-renaming stage. The other opcode has to be executed to set the upper
half of the destination YMM.
Same for VANDNP(S|D)Yrr.

Differential Revision: https://reviews.llvm.org/D52347

llvm-svn: 342728
2018-09-21 12:43:07 +00:00
Jonas Devlieghere 7cf529c11f [test] Fix Assembler/debug-info.ll
Update Assembler/debug-info.ll to contain discriminator.

llvm-svn: 342727
2018-09-21 12:28:44 +00:00
Andrea Di Biagio eebfecee4f [X86] Add scheduling tests for AVX1 256-bit zero-idioms. NFC
llvm-svn: 342726
2018-09-21 12:22:14 +00:00
Jonas Devlieghere a0c9cb1913 Ensure that variant part discriminator is read by MetadataLoader
https://reviews.llvm.org/D42082 introduced variant parts to debug info
in LLVM. Subsequent work on the Rust compiler has found a bug in that
patch; namely, there is a path in MetadataLoader that fails to restore
the discriminator.

This patch fixes the bug.

Patch by: Tom Tromey

Differential revision: https://reviews.llvm.org/D52340

llvm-svn: 342725
2018-09-21 12:03:14 +00:00
Jonas Devlieghere 907ed15f99 [dsymutil] Suppress CoreFoundation leaks in tests.
This suppresses CoreFoundation originated leaks in the dsymutil tests.
I'm not sure if this is a false positive or not, but either way we don't
have control over it and shouldn't keep the bot red.

http://lab.llvm.org:8080/green/job/clang-stage2-cmake-RgSan/

llvm-svn: 342724
2018-09-21 11:55:17 +00:00
Benjamin Kramer 2fc787930e [ADT] Hack around GCC 5.4 miscompiling Optional of enum.
I'm still not 100% sure that this is not UB lingering (Optional has UB
and should use std::launder, but we don't have std::launder)

llvm-svn: 342723
2018-09-21 11:38:35 +00:00
Sameer Sahasrabuddhe 2de7653fd5 [AMDGPU] lower-switch in preISel as a workaround for legacy DA
Summary:
The default target of the switch instruction may sometimes be an
"unreachable" block, when it is guaranteed that one of the cases is
always taken. The dominator tree concludes that such a switch
instruction does not have an immediate post dominator. This confuses
divergence analysis, which is unable to propagate sync dependence to
the targets of the switch instruction.

As a workaround, the AMDGPU target now invokes lower-switch as a
preISel pass. LowerSwitch is designed to handle the unreachable
default target correctly, allowing the divergence analysis to locate
the correct immediate dominator of the now-lowered switch.

Reviewers: arsenm, nhaehnle

Reviewed By: nhaehnle

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

Differential Revision: https://reviews.llvm.org/D52221

llvm-svn: 342722
2018-09-21 11:26:55 +00:00
Ivan Donchevskii 60a16ef04b [CodeComplete] Generate completion fix-its for C code as well
Current completion fix-its approach does not provide OtherOpBase for C code.
But we can easily proceed in this case taking the original Base type.

Differential Revision: https://reviews.llvm.org/D52261

llvm-svn: 342721
2018-09-21 11:23:22 +00:00
Jeremy Morse b52bd9eed6 [libfuzzer] Fix a test's run line
r342698 removed the 'UNSUPPORTED: windows' flags from a number of fuzzer
tests, however too many lines were removed from 'fuzzer-flags.test',
including the run-line that generates the test binary, which breaks that
test for me (and the clang-x64-ninja-win7 buildbot). This patch just
re-adds that line.

llvm-svn: 342720
2018-09-21 10:50:15 +00:00
Alexander Timofeev 36617f0160 [AMDGPU] Divergence driven instruction selection. Part 1.
Summary: This change is the first part of the AMDGPU target description
    change. The aim of it is the effective splitting the vector and scalar
    flows at the selection stage. Selection uses predicate functions based
    on the framework implemented earlier - https://reviews.llvm.org/D35267

    Differential revision: https://reviews.llvm.org/D52019

    Reviewers: rampitec

llvm-svn: 342719
2018-09-21 10:31:22 +00:00
Calixte Denizet 8f7aab5c61 [profile] Fix the tests for patch in https://reviews.llvm.org/D49916.
Summary:
The goal of D49916 is to remove some hit counters from lines like '}'.
So as a consequence, the tests must be fixed.
FYI, after holidays, I'll add more tests.

Reviewers: marco-c, davidxl

Reviewed By: marco-c

Subscribers: delcypher, llvm-commits, #sanitizers, sylvestre.ledru

Differential Revision: https://reviews.llvm.org/D49917

llvm-svn: 342718
2018-09-21 09:17:14 +00:00
Calixte Denizet 5713db4c4a [CodeGen] Add to emitted DebugLoc information about coverage when it's required
Summary:
Some lines have a hit counter where they should not have one.
Cleanup stuff is located to the last line of the body which is most of the time a '}'.
And Exception stuff is added at the beginning of a function and at the end (represented by '{' and '}').
So in such cases, the DebugLoc used in GCOVProfiling.cpp must be marked as not covered.
This patch is a followup of https://reviews.llvm.org/D49915.
Tests in projects/compiler_rt are fixed by: https://reviews.llvm.org/D49917

Reviewers: marco-c, davidxl

Reviewed By: marco-c

Subscribers: dblaikie, cfe-commits, sylvestre.ledru

Differential Revision: https://reviews.llvm.org/D49916

llvm-svn: 342717
2018-09-21 09:17:06 +00:00
Sylvestre Ledru eaf601ab7a fix the scan-build urls
llvm-svn: 342716
2018-09-21 09:07:58 +00:00
Dean Michael Berris 5082e25196 [XRay][clang] Propagate -fxray-instrumentation-bundle to -cc1
Summary:
Add a test and ensure that we propagate the
-fxray-instrumentation-bundle flag from the driver invocation to the
-cc1 options.

Reviewers: mboerger, tejohnson

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52342

llvm-svn: 342715
2018-09-21 08:32:49 +00:00
Jonas Devlieghere b32274242d [dwarfdump] Verify DW_AT_type is set and points to a compatible DIE.
This extends the verifier to catch three new errors:

  * Missing DW_AT_type attributes for DW_TAG_formal_parameter,
    DW_TAG_variable and DW_TAG_array_type.

  * Valid references for DW_AT_type pointing to a non-type tag.

Differential revision: https://reviews.llvm.org/D52223

llvm-svn: 342713
2018-09-21 07:50:21 +00:00
Jonas Devlieghere 7ef2c2021e [dwarfdump] Verify compatibility of attribute TAGs.
Verify that DW_AT_specification and DW_AT_abstract_origin reference a
DIE with a compatible tag.

Differential revision: https://reviews.llvm.org/D38719

llvm-svn: 342712
2018-09-21 07:49:29 +00:00
JF Bastien b6eb21c29f Revert "[ADT] restrict bit_cast to trivially-constructible To"
Of course some bots don't have std::is_trivially_constructible...

llvm-svn: 342711
2018-09-21 05:34:12 +00:00
JF Bastien 86f732a6a8 [ADT] restrict bit_cast to trivially-constructible To
Summary: As discussed in r341853 by blaikie, the reinterpret_cast was technically an aliasing violation. Restrict our bit_cast implementation to To which are trivially-constructible (and note the existing restriction to constexpr). Once we move to C++17 we can use a version of bit_cast without these restrictions, or if we care we can SFINAE a different implementation when To isn't trivially-constructible.

Reviewers: dblaikie, rsmith

Subscribers: dexonsmith, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D52332

llvm-svn: 342710
2018-09-21 05:18:49 +00:00
JF Bastien 73d8e4e531 Merge clang's isRepeatedBytePattern with LLVM's isBytewiseValue
Summary:
his code was in CGDecl.cpp and really belongs in LLVM's isBytewiseValue. Teach isBytewiseValue the tricks clang's isRepeatedBytePattern had, including merging undef properly, and recursing on more types.

clang part of this patch: D51752

Subscribers: dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D51751

llvm-svn: 342709
2018-09-21 05:17:42 +00:00
Owen Pan 9da65a3ab0 [clang-format] Do not merge short case labels if followed by a block.
Do not allow short case labels on a single line if the label is followed by a
left brace.

Fixes PR38926.

llvm-svn: 342708
2018-09-21 03:46:36 +00:00
Dan Gohman 1dcce6c926 [WebAssembly] Revert r342701, "Add WebAssembly to LLVM_ALL_TARGTS."
There is a memory leak which is detected in some of the sanitizer builds.
MCSymbolWasm contains SmallVectors for holding signature information,
however MCContext doesn't run destructors for MCSymbols, so in cases
where the SmallVectors heap-allocate, the memory is leaked.

llvm-svn: 342707
2018-09-21 03:24:42 +00:00
Dean Michael Berris 92a05bfbf0 [MCA] Remove dependency on CodeGen.
Summary:
There isn't any actual dependency - there's one #include from CodeGen
but nothing from the header is actually used.

With this change we can use the MCA library from CodeGen without
circular dependencies (e.g. for scheduling).

Reviewers: andreadb

Reviewed By: andreadb

Authored By: orodley

Subscribers: mgorny, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D52288

llvm-svn: 342706
2018-09-21 01:54:08 +00:00
Kristina Brooks a3421c3ca9 [Docs] [Support] Correct a missed reference and use up to date .inc examples.
In my original diff I missed #include "llvm/System/Thing.h" and forgot to update a
reference to .inc files a few lines down. This patch corrects these things as 
they were missed in revision 342500.

llvm-svn: 342705
2018-09-21 01:53:51 +00:00