Sanjay Patel [Mon, 16 Sep 2019 12:54:34 +0000 (12:54 +0000)]
[InstCombine] remove unneeded one-use checks for icmp fold
This fold and several others were added in:
rL125734 <https://reviews.llvm.org/rL125734>
...with no explanation for the one-use checks other than the code
comments about register pressure.
Given that this is IR canonicalization, we shouldn't be worried
about register pressure though; the backend should be able to
adjust for that as needed.
This is part of solving PR43310 the theoretically right way:
https://bugs.llvm.org/show_bug.cgi?id=43310
...ie, if we don't cripple basic transforms, then we won't
need to add special-case code to detect larger patterns.
rL371940 is a related patch in this series.
llvm-svn: 371981
Haojian Wu [Mon, 16 Sep 2019 12:51:07 +0000 (12:51 +0000)]
[clangd] Bump vscode-clangd v0.0.17
CHANGELOG:
- added semantic highlighting support (under the clangd.semanticHighlighting
flag);
- better error message when clangd fails to execute refactoring-like
actions;
- improved the readme doc;
llvm-svn: 371980
Sanjay Patel [Mon, 16 Sep 2019 12:19:18 +0000 (12:19 +0000)]
[InstCombine] add icmp tests with extra uses; NFC
llvm-svn: 371979
Sanjay Patel [Mon, 16 Sep 2019 12:12:05 +0000 (12:12 +0000)]
[InstCombine] fix comments to match code; NFC
This blob was written before match() existed, so it
could probably be reduced significantly.
But I suspect it isn't well tested, so tests would have
to be added to reduce risk from logic changes.
llvm-svn: 371978
Nico Weber [Mon, 16 Sep 2019 11:33:54 +0000 (11:33 +0000)]
gn build: Merge r371976
llvm-svn: 371977
Utkarsh Saxena [Mon, 16 Sep 2019 11:29:35 +0000 (11:29 +0000)]
Implement semantic selections.
Summary:
For a given cursor position, it returns ranges that are interesting to the user.
Currently the semantic ranges correspond to the nodes of the syntax trees.
Subscribers: mgorny, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67358
llvm-svn: 371976
Simon Pilgrim [Mon, 16 Sep 2019 11:22:44 +0000 (11:22 +0000)]
[VPlanSLP] Don't dereference a cast_or_null<VPInstruction> result. NFCI.
The static analyzer is warning about a potential null dereference of the cast_or_null result, I've split the cast_or_null check from the ->getUnderlyingInstr() call to avoid this, but it appears that we weren't seeing any null pointers in the dumped bundles in the first place.
llvm-svn: 371975
Simon Pilgrim [Mon, 16 Sep 2019 10:48:16 +0000 (10:48 +0000)]
[SLPVectorizer] Assert that we find a LastInst to silence analyzer null dereference warning. NFCI.
llvm-svn: 371974
Simon Pilgrim [Mon, 16 Sep 2019 10:35:09 +0000 (10:35 +0000)]
[SLPVectorizer] Don't dereference a dyn_cast result. NFCI.
The static analyzer is warning about potential null dereferences of dyn_cast<> results - in these cases we can safely use cast<> directly as we know that these cases should all be the correct type, which is why its working atm and anyway cast<> will assert if they aren't.
llvm-svn: 371973
Sjoerd Meijer [Mon, 16 Sep 2019 10:30:37 +0000 (10:30 +0000)]
Added return statement to fix compile and build warning:
llvm-rtdyld.cpp:966:7: warning: variable ‘Result’ set but not used
llvm-svn: 371972
Haojian Wu [Mon, 16 Sep 2019 10:16:56 +0000 (10:16 +0000)]
[clangd] Fix a crash when renaming operator.
Summary:
The renamelib uses a tricky way to calculate the end location by relying
on decl name, this is incorrect for the overloaded operator (the name is
"operator++" instead of "++"), which will cause out-of-file offset.
We also disable renaming operator symbol, this case is tricky, and
renamelib doesnt handle it properly.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67607
llvm-svn: 371971
Peter Smith [Mon, 16 Sep 2019 10:07:53 +0000 (10:07 +0000)]
[ELF][ARM] Fix -Werror buildbots NFC.
Provide a missing initializer to get rid of warning provoking buildbot
failures.
error: missing field 'rel' initializer
[-Werror,-Wmissing-field-initializers]
llvm-svn: 371970
Karl-Johan Karlsson [Mon, 16 Sep 2019 09:52:23 +0000 (09:52 +0000)]
Change signature of __builtin_rotateright64 back to unsigned
The signature of __builtin_rotateright64 was by misstake changed from
unsigned to signed in r360863, this patch will change it back to
unsigned as intended.
This fixes pr43309
Reviewers: efriedma, hans
Reviewed By: hans
Differential Revision: https://reviews.llvm.org/D67606
llvm-svn: 371969
Haojian Wu [Mon, 16 Sep 2019 09:46:53 +0000 (09:46 +0000)]
Fix the rst doc, unbreak buildbot.
llvm-svn: 371968
Kerry McLaughlin [Mon, 16 Sep 2019 09:45:27 +0000 (09:45 +0000)]
[SVE][Inline-Asm] Add constraints for SVE predicate registers
Summary:
Adds the following inline asm constraints for SVE:
- Upl: One of the low eight SVE predicate registers, P0 to P7 inclusive
- Upa: SVE predicate register with full range, P0 to P15
Reviewers: t.p.northover, sdesmalen, rovka, momchil.velikov, cameron.mcinally, greened, rengolin
Reviewed By: rovka
Subscribers: javed.absar, tschuett, rkruppe, psnobl, cfe-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66524
llvm-svn: 371967
Nico Weber [Mon, 16 Sep 2019 09:43:26 +0000 (09:43 +0000)]
gn build: Merge r371965
llvm-svn: 371966
Peter Smith [Mon, 16 Sep 2019 09:38:38 +0000 (09:38 +0000)]
[ELF][ARM] Implement --fix-cortex-a8 to fix erratum 657417
The --fix-cortex-a8 option implements a linker workaround for the
coretex-a8 erratum 657417. A summary of the erratum conditions is:
- A 32-bit Thumb-2 branch instruction B.w, Bcc.w, BL, BLX spans two
4KiB regions.
- The destination of the branch is to the first 4KiB region.
- The instruction before the branch is a 32-bit Thumb-2 non-branch
instruction.
The linker fix is to redirect the branch to a patch not in the first
4KiB region. The patch forwards the branch on to its target.
The cortex-a8, is an old CPU, with the first implementation of this
workaround in ld.bfd appearing in 2009. The cortex-a8 has been used in
early Android Phones and there are some critical applications that still
need to run on a cortex-a8 that have the erratum. The patch is applied
roughly 10 times on LLD and 20 on Clang when they are built with
--fix-cortex-a8 on an Arm system.
The formal erratum description is avaliable in the ARM Core Cortex-A8
(AT400/AT401) Errata Notice document. This is available from Arm on
request but it seems to be findable via a web search.
Differential Revision: https://reviews.llvm.org/D67284
llvm-svn: 371965
Haojian Wu [Mon, 16 Sep 2019 08:54:10 +0000 (08:54 +0000)]
[clang-tidy] performance-inefficient-vector-operation: Support proto repeated field
Summary:
Finds calls that add element to protobuf repeated field in a loop
without calling Reserve() before the loop. Calling Reserve() first can avoid
unnecessary memory reallocations.
A new option EnableProto is added to guard this feature.
Patch by Cong Liu!
Reviewers: gribozavr, alexfh, hokein, aaron.ballman
Reviewed By: hokein
Subscribers: lebedev.ri, xazax.hun, Eugene.Zelenko, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67135
llvm-svn: 371963
Fangrui Song [Mon, 16 Sep 2019 07:52:30 +0000 (07:52 +0000)]
[test] Add -z separate-code to fix tests that ae sensitive to exact addresses after r371958
llvm-svn: 371962
Nico Weber [Mon, 16 Sep 2019 07:34:23 +0000 (07:34 +0000)]
gn build: Merge r371959
llvm-svn: 371961
Sjoerd Meijer [Mon, 16 Sep 2019 07:32:13 +0000 (07:32 +0000)]
[AArch64] Some more FP16 FMA pattern matching
After our previous machinecombiner exercises (rL371321, rL371818, rL371833), we
were still missing a few FP16 FMA patterns.
Differential Revision: https://reviews.llvm.org/D67576
llvm-svn: 371960
Jonas Paulsson [Mon, 16 Sep 2019 07:29:37 +0000 (07:29 +0000)]
[SystemZ] Merge the SystemZExpandPseudo pass into SystemZPostRewrite.
SystemZExpandPseudo:s only job was to expand LOCRMux instructions into jump
sequences. This needs to be done if expandLOCRPseudo() or expandSELRPseudo()
fails to find a legal opcode (all registers "high" or "low"). This task has
now been moved to SystemZPostRewrite while removing the SystemZExpandPseudo
pass.
It is in fact preferred to expand these pseudos directly after register
allocation in SystemZPostRewrite since the hinted register combinations are
then not subject to later optimizations.
Review: Ulrich Weigand
https://reviews.llvm.org/D67432
llvm-svn: 371959
Fangrui Song [Mon, 16 Sep 2019 07:05:34 +0000 (07:05 +0000)]
[ELF][X86] Allow PT_LOAD to have overlapping p_offset ranges on EM_X86_64
Port the D64906 technique to EM_X86_64.
Differential Revision: https://reviews.llvm.org/D67482
llvm-svn: 371958
Fangrui Song [Mon, 16 Sep 2019 07:04:16 +0000 (07:04 +0000)]
[ELF] Map the ELF header at imageBase
If there is no readonly section, we map:
* The ELF header at imageBase+maxPageSize
* Program headers at imageBase+maxPageSize+sizeof(Ehdr)
* The first section .text at imageBase+maxPageSize+sizeof(Ehdr)+sizeof(program headers)
Due to the interaction between Writer<ELFT>::fixSectionAlignments and
LinkerScript::allocateHeaders,
`alignDown(p_vaddr(R PT_LOAD)) = alignDown(p_vaddr(RX PT_LOAD))`.
The RX PT_LOAD will override the R PT_LOAD at runtime, which is not ideal:
```
// PHDR at 0x401034, should be 0x400034
PHDR 0x000034 0x00401034 0x00401034 0x000a0 0x000a0 R 0x4
// R PT_LOAD contains just Ehdr and program headers.
// At 0x401000, should be 0x400000
LOAD 0x000000 0x00401000 0x00401000 0x000d4 0x000d4 R 0x1000
LOAD 0x0000d4 0x004010d4 0x004010d4 0x00001 0x00001 R E 0x1000
```
* createPhdrs allocates the headers to the R PT_LOAD.
* fixSectionAlignments assigns `imageBase+maxPageSize+sizeof(Ehdr)+sizeof(program headers)` (formula: `alignTo(dot, maxPageSize) + dot % config->maxPageSize`) to addrExpr of .text
* allocateHeaders computes the minimum address among SHF_ALLOC sections, i.e. addr(.text)
* allocateHeaders sets address of ELF header to `addr(.text)-sizeof(Ehdr)-sizeof(program headers) = imageBase+maxPageSize`
The main observation is that when the SECTIONS command is not used, we
don't have to call allocateHeaders. This requires an assumption that
the presence of PT_PHDR and addresses of headers can be decided
regardless of address information.
This may seem natural because dot is not manipulated by a linker script.
The other thing is that we have to drop the special rule for -T<section>
in `getInitialDot`. If -Ttext is smaller than the image base, the headers
will not be allocated with the old behavior (allocateHeaders is called)
but always allocated with the new behavior.
The behavior change is not a problem. Whether and where headers are
allocated can vary among linkers, or ld.bfd across different versions
(--enable-separate-code or not). It is thus advised to use a linker
script with the PHDRS command to have a consistent behavior across
linkers. If PT_PHDR is needed, an explicit --image-base can be a simpler
alternative.
Differential Revision: https://reviews.llvm.org/D67325
llvm-svn: 371957
Matt Arsenault [Mon, 16 Sep 2019 04:21:10 +0000 (04:21 +0000)]
AMDGPU/GlobalISel: Remove illegal select tests
These fail in a release build.
llvm-svn: 371955
Matt Arsenault [Mon, 16 Sep 2019 00:54:07 +0000 (00:54 +0000)]
AMDGPU/GlobalISel: Select SMRD loads for more types
llvm-svn: 371954
Matt Arsenault [Mon, 16 Sep 2019 00:48:37 +0000 (00:48 +0000)]
AMDGPU/GlobalISel: RegBankSelect for kill
llvm-svn: 371953
Matt Arsenault [Mon, 16 Sep 2019 00:37:10 +0000 (00:37 +0000)]
AMDGPU/GlobalISel: Legalize s1 source G_[SU]ITOFP
llvm-svn: 371952
Matt Arsenault [Mon, 16 Sep 2019 00:33:00 +0000 (00:33 +0000)]
AMDGPU/GlobalISel: Set type on vgpr live in special arguments
Fixes assertion with workitem ID intrinsics used in non-kernel
functions.
llvm-svn: 371951
Matt Arsenault [Mon, 16 Sep 2019 00:32:56 +0000 (00:32 +0000)]
AMDGPU/GlobalISel: Select S16->S32 fptoint
llvm-svn: 371950
Matt Arsenault [Mon, 16 Sep 2019 00:29:12 +0000 (00:29 +0000)]
AMDGPU/GlobalISel: Select s32->s16 G_[US]ITOFP
llvm-svn: 371949
Matt Arsenault [Mon, 16 Sep 2019 00:20:54 +0000 (00:20 +0000)]
AMDGPU/GlobalISel: Fix VALU s16 fneg
llvm-svn: 371948
Stefan Stipanovic [Sun, 15 Sep 2019 21:47:41 +0000 (21:47 +0000)]
[Attributor] Heap-To-Stack Conversion
D53362 gives a prototype heap-to-stack conversion pass. With addition of new attributes in the attributor, this can now be revisted and improved. This will place it in the Attributor to make it easier to use new attributes (eg. nofree, nosync, willreturn, etc.) and other attributor features.
Reviewers: jdoerfert, uenoku, hfinkel, efriedma
Subscribers: lebedev.ri, xbolva00, hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D65408
llvm-svn: 371942
Kamil Rytarowski [Sun, 15 Sep 2019 21:04:50 +0000 (21:04 +0000)]
Commit missing part of "Split many_tls_keys.cpp into two tests"
https://reviews.llvm.org/D67428
This change was lost due to a file rename and modification.
llvm-svn: 371941
Sanjay Patel [Sun, 15 Sep 2019 20:56:34 +0000 (20:56 +0000)]
[InstCombine] remove unneeded one-use checks for icmp fold
This fold and several others were added in:
rL125734
...with no explanation for the one-use checks other than the code
comments about register pressure.
Given that this is IR canonicalization, we shouldn't be worried
about register pressure though; the backend should be able to
adjust for that as needed.
There are similar checks as noted with the TODO comments. I'm
hoping to remove those restrictions too, but if any of these
does cause a regression, it should be easier to correct by making
small, individual commits.
This is part of solving PR43310 the theoretically right way:
https://bugs.llvm.org/show_bug.cgi?id=43310
...ie, if we don't cripple basic transforms, then we won't
need to add special-case code to detect larger patterns.
llvm-svn: 371940
Sanjay Patel [Sun, 15 Sep 2019 20:13:27 +0000 (20:13 +0000)]
[InstCombine] add icmp tests with extra uses; NFC
llvm-svn: 371939
Jinsong Ji [Sun, 15 Sep 2019 20:02:25 +0000 (20:02 +0000)]
[PowerPC][NFC] Add a testcase for fdiv expansion.
Pre-commit for following patch.
llvm-svn: 371938
Simon Pilgrim [Sun, 15 Sep 2019 16:56:06 +0000 (16:56 +0000)]
[GlobalISel] findGISelOptimalMemOpLowering - remove dead initalization. NFCI.
Fixes static analyzer warning that "Value stored to 'NewTySize' during its initialization is never read".
llvm-svn: 371937
Simon Pilgrim [Sun, 15 Sep 2019 16:44:35 +0000 (16:44 +0000)]
[LoadStoreVectorizer] vectorizeLoadChain - ensure we find a valid Type down the load chain. NFCI.
Silence static analyzer uninitialized variable warning by setting the LoadTy to null and then asserting we find a real value.
llvm-svn: 371936
Simon Pilgrim [Sun, 15 Sep 2019 16:20:12 +0000 (16:20 +0000)]
InterleavedLoadCombine - merge isa<> and dyn_cast<> duplicates. NFCI.
Silence static analyzer null dereference warning of *dyn_cast<BinaryOperator> by merging with the isa<BinaryOperator> above.
llvm-svn: 371935
Simon Pilgrim [Sun, 15 Sep 2019 16:05:20 +0000 (16:05 +0000)]
[OpenMP] Fix OMPClauseReader::readClause() uninitialized variable warning. NFCI.
Fixes static analyzer uninitialized variable warning for the OMPClause - the function appears to cover all cases, but I've added an assertion to make sure.
llvm-svn: 371934
Simon Pilgrim [Sun, 15 Sep 2019 15:38:26 +0000 (15:38 +0000)]
[DebugInfo] Don't dereference a dyn_cast<PDBSymbolData> result. NFCI.
The static analyzer is warning about a potential null dereference - but as we're in DataMemberLayoutItem we should be able to guarantee that the Symbol is a PDBSymbolData type, allowing us to use cast<PDBSymbolData> - and if not assert will fire for us.
llvm-svn: 371933
David Green [Sun, 15 Sep 2019 14:14:47 +0000 (14:14 +0000)]
[ARM] Masked loads and stores
Masked loads and store fit naturally with MVE, the instructions being easily
predicated. This adds lowering for the simple cases of masked loads and stores.
It does not yet deal with widening/narrowing or pre/post inc, and so is
currently behind an option.
The llvm masked load intrinsic will accept a "passthru" value, dictating the
values used for the zero masked lanes. In MVE the instructions write 0 to the
zero predicated lanes, so we need to match a passthru that isn't 0 (or undef)
with a select instruction to pull in the correct data after the load.
Differential Revision: https://reviews.llvm.org/D67186
llvm-svn: 371932
Sanjay Patel [Sun, 15 Sep 2019 13:03:24 +0000 (13:03 +0000)]
[SLP] limit vectorization of Constant subclasses (PR33958)
This is a fix for:
https://bugs.llvm.org/show_bug.cgi?id=33958
It seems universally true that we would not want to transform this kind of
sequence on any target, but if that's not correct, then we could view this
as a target-specific cost model problem. We could also white-list ConstantInt,
ConstantFP, etc. rather than blacklist Global and ConstantExpr.
Differential Revision: https://reviews.llvm.org/D67362
llvm-svn: 371931
David Green [Sun, 15 Sep 2019 11:53:05 +0000 (11:53 +0000)]
[ARM] Simplify and update vmla test. NFC
llvm-svn: 371930
James Molloy [Sun, 15 Sep 2019 08:44:40 +0000 (08:44 +0000)]
[CodeEmitter] Improve testing for APInt encoding
I missed Artem's comment in D67487 before committing.
Differential Revision: https://reviews.llvm.org/D67487
llvm-svn: 371929
James Molloy [Sun, 15 Sep 2019 08:35:08 +0000 (08:35 +0000)]
[CodeEmitter] Support instruction widths > 64 bits
Some VLIW instruction sets are Very Long Indeed. Using uint64_t constricts the Inst encoding to 64 bits (naturally).
This change switches CodeEmitter to a mode that uses APInts when Inst's bitwidth is > 64 bits (NFC for existing targets).
When Inst.BitWidth > 64 the prototype changes to:
void TargetMCCodeEmitter::getBinaryCodeForInstr(const MCInst &MI,
SmallVectorImpl<MCFixup> &Fixups,
APInt &Inst,
APInt &Scratch,
const MCSubtargetInfo &STI);
The Inst parameter returns the encoded instruction, the Scratch parameter is used internally for manipulating operands and is exposed so that the underlying storage can be reused between calls to getBinaryCodeForInstr. The goal is to elide any APInt constructions that we can.
Similarly the operand encoding prototype changes to:
getMachineOpValue(const MCInst &MI, const MCOperand &MO, APInt &op, SmallVectorImpl<MCFixup> &Fixups, const MCSubtargetInfo &STI);
That is, the operand is passed by reference as APInt rather than returned as uint64_t.
To reiterate, this APInt mode is enabled only when Inst.BitWidth > 64, so this change is NFC for existing targets.
llvm-svn: 371928
Nico Weber [Sat, 14 Sep 2019 23:41:42 +0000 (23:41 +0000)]
lld-link: Make Options.td formatting more self-consistent.
Also tighten up help strings for /force, --start-lib, and --end-lib.
Differential Revision: https://reviews.llvm.org/D67457
llvm-svn: 371927
Nico Weber [Sat, 14 Sep 2019 22:22:47 +0000 (22:22 +0000)]
compiler-rt/builtins: Make check-builtins run tests on macOS.
Differential Revision: https://reviews.llvm.org/D66984
llvm-svn: 371926
Eric Fiselier [Sat, 14 Sep 2019 19:55:28 +0000 (19:55 +0000)]
Add debug check for null pointers passed to <string_view>
llvm-svn: 371925
David Bolvansky [Sat, 14 Sep 2019 19:38:55 +0000 (19:38 +0000)]
[Diagnostics] Added silence note for -Wsizeof-array-div; suggest extra parens
llvm-svn: 371924
Simon Pilgrim [Sat, 14 Sep 2019 16:38:26 +0000 (16:38 +0000)]
[TargetLowering] SimplifyDemandedBits - add EXTRACT_SUBVECTOR support.
Call SimplifyDemandedBits on the source vector.
llvm-svn: 371923
Jan Kratochvil [Sat, 14 Sep 2019 15:46:51 +0000 (15:46 +0000)]
[lldb] Code cleanup: FormattersContainer.h: Use range-based for loops.
Suggested for an other loop by Pavel Labath in:
https://reviews.llvm.org/D66654#inline-605808
llvm-svn: 371922
Roman Lebedev [Sat, 14 Sep 2019 13:47:27 +0000 (13:47 +0000)]
[InstSimplify] simplifyUnsignedRangeCheck(): handle few tautological cases (PR43251)
Summary:
This is split off from D67356, since these cases produce a constant,
no real need to keep them in instcombine.
Alive proofs:
https://rise4fun.com/Alive/u7Fk
https://rise4fun.com/Alive/4lV
https://bugs.llvm.org/show_bug.cgi?id=43251
Reviewers: spatel, nikic, xbolva00
Reviewed By: spatel
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67498
llvm-svn: 371921
Fangrui Song [Sat, 14 Sep 2019 07:25:27 +0000 (07:25 +0000)]
[clang-scan-deps] Add -M to work around -MT issue after r371918
gcc will complain if -MT is used but neither -M nor -MM is specified:
> cc1: error: to generate dependencies you must specify either -M or -MM
r371918 changed our behavior to match GCC, but apparently
clang-scan-deps is not happy.
llvm-svn: 371920
Fangrui Song [Sat, 14 Sep 2019 06:01:22 +0000 (06:01 +0000)]
[Driver] Fix multiple bugs related to dependency file options: -M -MM -MD -MMD -MT -MQ
-M -o test.i => dependency file is test.d, not test.i
-MM -o test.i => dependency file is test.d, not test.i
-M -MMD => bogus warning -Wunused-command-line-argument
-M MT dummy => -w not rendered
llvm-svn: 371918
Fangrui Song [Sat, 14 Sep 2019 04:13:15 +0000 (04:13 +0000)]
[Driver] Improve Clang::getDependencyFileName and its tests after rC371853
The test file name metadata-with-dots.c is confusing because -MD and -MMD
have nothing to do with metadata.
llvm-svn: 371917
Mingjie Xing [Sat, 14 Sep 2019 03:27:38 +0000 (03:27 +0000)]
[ScheduleDAGMILive] Fix typo in comment.
Differential Revision: https://reviews.llvm.org/D67478
llvm-svn: 371916
Johannes Doerfert [Sat, 14 Sep 2019 02:57:50 +0000 (02:57 +0000)]
[Attributor][Fix] Use right type to replace expressions
Summary: This should be obsolete once the functionality in D66967 is integrated.
Reviewers: uenoku, sstefan1
Subscribers: hiraditya, bollu, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67231
llvm-svn: 371915
Fangrui Song [Sat, 14 Sep 2019 01:36:31 +0000 (01:36 +0000)]
[llvm-objcopy] Ignore -B --binary-architecture=
GNU objcopy documents that -B is only useful with architecture-less
input (i.e. "binary" or "ihex"). After D67144, -O defaults to -I, and
-B is essentially a NOP.
* If -O is binary/ihex, GNU objcopy ignores -B.
* If -O is elf*, -B provides the e_machine field in GNU objcopy.
So to convert a blob to an ELF, `-I binary -B i386:x86-64 -O elf64-x86-64` has to be specified.
`-I binary -B i386:x86-64 -O elf64-x86-64` creates an ELF with its
e_machine field set to EM_NONE in GNU objcopy, but a regular x86_64 ELF
in elftoolchain elfcopy. Follow the elftoolchain approach (ignoring -B)
to simplify code. Users that expect their command line portable should
specify -B.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D67215
llvm-svn: 371914
Fangrui Song [Sat, 14 Sep 2019 01:36:16 +0000 (01:36 +0000)]
[llvm-objcopy] Default --output-target to --input-target when unspecified
Fixes PR42171.
In GNU objcopy, if -O (--output-target) is not specified, the value is
copied from -I (--input-target).
```
objcopy -I binary -B i386:x86-64 a.txt b # b is copied from a.txt
llvm-objcopy -I binary -B i386:x86-64 a.txt b # b is an x86-64 object file
```
This patch changes our behavior to match GNU. With this change, we can
delete code related to -B handling (D67215).
Reviewed By: jakehehrlich
Differential Revision: https://reviews.llvm.org/D67144
llvm-svn: 371913
Fangrui Song [Sat, 14 Sep 2019 01:18:47 +0000 (01:18 +0000)]
[llvm-ar] Uncapitalize error messages and delete full stop
Most GNU binutils don't append full stops in error messages. This
convention has been adopted by a bunch of LLVM binary utilities. Make
llvm-ar follow the convention as well.
Reviewed By: grimar
Differential Revision: https://reviews.llvm.org/D67558
llvm-svn: 371912
Michael Pozulp [Sat, 14 Sep 2019 01:14:43 +0000 (01:14 +0000)]
[llvm-objcopy] Add support for response files in llvm-strip and llvm-objcopy
Summary: Addresses https://bugs.llvm.org/show_bug.cgi?id=42671
Reviewers: jhenderson, espindola, alexshap, rupprecht
Reviewed By: jhenderson
Subscribers: seiya, emaste, arichardson, jakehehrlich, MaskRay, abrachet, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65372
llvm-svn: 371911
David Blaikie [Sat, 14 Sep 2019 00:32:13 +0000 (00:32 +0000)]
Bugpoint: Remove some unnecessary c_str conversions on the journey to StringRef
llvm-svn: 371910
Jonas Devlieghere [Fri, 13 Sep 2019 23:27:31 +0000 (23:27 +0000)]
[Reproducer] Add reproducer dump command.
This adds a reproducer dump commands which makes it possible to inspect
a reproducer from inside LLDB. Currently it supports the Files, Commands
and Version providers. I'm planning to add support for the GDB Remote
provider in a follow-up patch.
Differential revision: https://reviews.llvm.org/D67474
llvm-svn: 371909
Jonas Devlieghere [Fri, 13 Sep 2019 23:14:10 +0000 (23:14 +0000)]
[Reproducer] Move GDB Remote Packet into Utility. (NFC)
To support dumping the reproducer's GDB remote packets, we need the
(de)serialization logic to live in Utility rather than the GDB remote
plugin. This patch renames StreamGDBRemote to GDBRemote and moves the
relevant packet code there.
Its uses in the GDBRemoteCommunicationHistory and the
GDBRemoteCommunicationReplayServer are updated as well.
Differential revision: https://reviews.llvm.org/D67523
llvm-svn: 371907
Thomas Lively [Fri, 13 Sep 2019 22:54:41 +0000 (22:54 +0000)]
[WebAssembly] Narrowing and widening SIMD ops
Summary:
Implements target-specific LLVM intrinsics and clang builtins for
these new SIMD operations, as described at https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#integer-to-integer-narrowing.
Reviewers: aheejin
Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D67425
llvm-svn: 371906
Jonas Devlieghere [Fri, 13 Sep 2019 22:14:59 +0000 (22:14 +0000)]
[test] Update TestAPILog to pass on Windows.
The pretty function macro is including __cdecl on Windows, which was
causing the pattern matching to fail. This should fix that.
llvm-svn: 371905
Douglas Yung [Fri, 13 Sep 2019 22:12:27 +0000 (22:12 +0000)]
Make test check position independent as they sometimes come out reversed. NFCI.
llvm-svn: 371904
Alex Lorenz [Fri, 13 Sep 2019 22:12:02 +0000 (22:12 +0000)]
[clang-scan-deps] Fix for headers having the same name as a directory
Scan deps tool crashes when called on a C++ file, containing an include
that has the same name as a directory.
The tool crashes since it finds foo/dir and tries to read that as a file and fails.
Patch by: kousikk (Kousik Kumar)
Differential Revision: https://reviews.llvm.org/D67091
llvm-svn: 371903
Tim Shen [Fri, 13 Sep 2019 22:00:03 +0000 (22:00 +0000)]
[LLDB] Add missing breaks for switch statement
llvm-svn: 371902
Amara Emerson [Fri, 13 Sep 2019 21:49:24 +0000 (21:49 +0000)]
[GlobalISel] Fix insertion point of new instructions to be after PHIs.
For some reason we sometimes insert new instructions one instruction before
the first non-PHI when legalizing. This can result in having non-PHI
instructions before PHIs, which mean that PHI elimination doesn't catch them.
Differential Revision: https://reviews.llvm.org/D67570
llvm-svn: 371901
Steven Wu [Fri, 13 Sep 2019 21:19:12 +0000 (21:19 +0000)]
[NFC][libLTO] Rearrange declaration in lto.h
Summary:
Rearrange the function declaration in lto.h so they falls in the correct
doxygen group.
Reviewers: tejohnson, bd1976llvm, deadalnix
Reviewed By: tejohnson
Subscribers: mehdi_amini, inglorion, jkorous, dexonsmith, ributzka, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67565
llvm-svn: 371900
Jonas Devlieghere [Fri, 13 Sep 2019 21:15:03 +0000 (21:15 +0000)]
[test] Print the log output on failure.
This ensures that if the assertion fails we dump the log content. This
should help me investigate what the output looks like on Windows, where
the test is failing.
llvm-svn: 371899
Sanjoy Das [Fri, 13 Sep 2019 21:07:56 +0000 (21:07 +0000)]
Add dependency from Orc to Passes
Summary: Orc uses registerFunctionAnalyses that's defined in Passes.
Reviewers: dblaikie
Subscribers: mcrosier, bixia, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67477
llvm-svn: 371898
Tim Shen [Fri, 13 Sep 2019 21:06:47 +0000 (21:06 +0000)]
Fix test to use %t for newly created files.
This is both for consistency with other `mkdir`s in tests, and
fixing permission issues with the non-temporary cwd during testing (they
are not always writable).
llvm-svn: 371897
Francis Visoiu Mistrih [Fri, 13 Sep 2019 20:52:04 +0000 (20:52 +0000)]
[llvm-opt-report] Improve error handling
* std::move the error extracted from the parsing creation to avoid asserts
* print a newline after the error message
* create the parser from the metadata
llvm-svn: 371895
Eric Fiselier [Fri, 13 Sep 2019 20:30:45 +0000 (20:30 +0000)]
Fix C++03 build failures due to >>
llvm-svn: 371894
Jessica Paquette [Fri, 13 Sep 2019 20:25:58 +0000 (20:25 +0000)]
[AArch64][GlobalISel] Tail call memory intrinsics
Because memory intrinsics are handled differently than other calls, we need to
check them for tail call eligiblity in the legalizer. This allows us to still
inline them when it's beneficial to do so, but also tail call when possible.
This adds simple tail calling support for when the intrinsic is followed by a
return.
It ports the attribute checks from `TargetLowering::isInTailCallPosition` into
a similarly-named function in LegalizerHelper.cpp. The target-specific
`isUsedByReturnOnly` hook is not ported here.
Update tailcall-mem-intrinsics.ll to show that GlobalISel can now tail call
memory intrinsics.
Update legalize-memcpy-et-al.mir to have a case where we don't tail call.
Differential Revision: https://reviews.llvm.org/D67566
llvm-svn: 371893
Alexey Bataev [Fri, 13 Sep 2019 20:18:17 +0000 (20:18 +0000)]
[OPENMP5.0]Add basic support for declare variant directive.
Added basic support for declare variant directive and its match clause
with user context selector.
llvm-svn: 371892
Jan Korous [Fri, 13 Sep 2019 20:08:27 +0000 (20:08 +0000)]
[Support] Add overload writeFileAtomically(std::function Writer)
Differential Revision: https://reviews.llvm.org/D67424
llvm-svn: 371890
DeForest Richards [Fri, 13 Sep 2019 20:05:57 +0000 (20:05 +0000)]
[Docs] Bug fix for reference to nonexistent document
This commit fixes a bug in which the toctree contained a reference to a non-existent document.
llvm-svn: 371889
Kevin P. Neal [Fri, 13 Sep 2019 19:36:19 +0000 (19:36 +0000)]
[FPEnv] Document that constrained FP intrinsics cannot be mixed with non-constrained
Reviewed by: andrew.w.kaylor, cameron.mcinally, uweigand
Approved by: andrew.w.kaylor
Differential Revision: https://reviews.llvm.org/D67360
llvm-svn: 371888
Sebastian Pop [Fri, 13 Sep 2019 19:28:30 +0000 (19:28 +0000)]
[aarch64] move custom isel of extract_vector_elt to td file - NFC
In preparation for def-pat selection of dot product instructions,
this patch moves the custom instruction selection of extract_vector_elt
to the td file. Without this change it is impossible to catch a pattern that
starts with an extract_vector_elt: the custom cpp code is executed first
ahead of the patterns in the td files that are only executed at the end of
the switch statement in SelectCode(Node).
With this patch applied, it becomes possible to select a different pattern
that starts with extract_vector_elt by selecting a higher complexity than
this pattern.
The patch has been tested on aarch64-linux with make check-all.
Differential Revision: https://reviews.llvm.org/D67497
llvm-svn: 371887
Eric Fiselier [Fri, 13 Sep 2019 19:09:29 +0000 (19:09 +0000)]
Mark [[nodiscard]] test as unsupported with GCC 5
llvm-svn: 371886
Jonas Devlieghere [Fri, 13 Sep 2019 19:08:10 +0000 (19:08 +0000)]
[Reproducer] Include the this pointer in the API log.
The new centralized way of doing API logging through the reproducer
macros is lacking a way to easily correlate instances of API objects.
Logging the this pointer makes that significantly easier. For methods
this is now always passed as the first argument, similar to the self
argument in Python.
This patch also adds a test case for API logging, which uncovered that
we were not quoting strings.
Differential revision: https://reviews.llvm.org/D67538
llvm-svn: 371885
Eric Fiselier [Fri, 13 Sep 2019 19:04:33 +0000 (19:04 +0000)]
Fix pretty printer test with GCC
llvm-svn: 371884
Tim Northover [Fri, 13 Sep 2019 18:55:38 +0000 (18:55 +0000)]
AArch64: fix EXPENSIVE_CHECKS for arm64_32.
For some reason I'd decided to mark the end-result of a GOT load as
dead. It's clearly not (necessarily).
llvm-svn: 371883
Adrian McCarthy [Fri, 13 Sep 2019 18:50:39 +0000 (18:50 +0000)]
Fix error in ProcessLauncherWindows.cpp
Restored missing parens on a function call.
llvm-svn: 371882
Eric Fiselier [Fri, 13 Sep 2019 18:43:29 +0000 (18:43 +0000)]
Update XFAIL list for new GCC versions
llvm-svn: 371881
Eric Fiselier [Fri, 13 Sep 2019 18:40:46 +0000 (18:40 +0000)]
Fix various test failures with GCC
llvm-svn: 371880
Sanjay Patel [Fri, 13 Sep 2019 18:33:02 +0000 (18:33 +0000)]
[SLP] add test for vectorization of constant expressions; NFC
Goes with D67362.
llvm-svn: 371879
Manoj Gupta [Fri, 13 Sep 2019 18:00:51 +0000 (18:00 +0000)]
Reland r371785: Add -Wpoison-system-directories warning
When using clang as a cross-compiler, we should not use system
headers to do the compilation.
This CL adds support of a new warning flag -Wpoison-system-directories which
emits warnings if --sysroot is set and headers from common host system location
are used.
By default the warning is disabled.
The intention of the warning is to catch bad includes which are usually
generated by third party build system not targeting cross-compilation.
Such cases happen in Chrome OS when someone imports a new package or upgrade
one to a newer version from upstream.
This is reland of r371785 with a fix to test file.
Patch by: denik (Denis Nikitin)
llvm-svn: 371878
Roman Lebedev [Fri, 13 Sep 2019 17:58:24 +0000 (17:58 +0000)]
[NFC][InstSimplify] Add some more tests for D67498/D67502
llvm-svn: 371877
Erich Keane [Fri, 13 Sep 2019 17:56:38 +0000 (17:56 +0000)]
Fix build error in 371875
Apparently Clang complains about the name hiding here in a way that my
GCC build does not, so a shocking number of buildbots decided to tell me
about it. Change the name of the variable to prevent the name hiding
and hope we don't have to fix this again.
llvm-svn: 371876
Erich Keane [Fri, 13 Sep 2019 17:39:31 +0000 (17:39 +0000)]
[NFCI]Create CommonAttributeInfo Type as base type of *Attr and ParsedAttr.
In order to enable future improvements to our attribute diagnostics,
this moves info from ParsedAttr into CommonAttributeInfo, then makes
this type the base of the *Attr and ParsedAttr types. Quite a bit of
refactoring took place, including removing a bunch of redundant Spelling
Index propogation.
Differential Revision: https://reviews.llvm.org/D67368
llvm-svn: 371875
Eric Fiselier [Fri, 13 Sep 2019 17:39:06 +0000 (17:39 +0000)]
Fix failing negative compilation test for some versions of Clang
llvm-svn: 371874
Alexander Timofeev [Fri, 13 Sep 2019 17:37:30 +0000 (17:37 +0000)]
Revert for: [AMDGPU]: PHI Elimination hooks added for custom COPY insertion.
llvm-svn: 371873
Dan Liew [Fri, 13 Sep 2019 17:31:24 +0000 (17:31 +0000)]
Fix bug in `darwin_test_archs()` when the cache variable is set but empty.
Summary:
If the cache variable named in `${valid_archs}` (e.g. `DARWIN_osx_BUILTIN_ARCHS`)
is set in the cache but is empty then the cache check
`if(${valid_archs})` will be false so the function will probe the
compiler but the `set(...)` command at the end of the function to update
the cache variable will be a no-op. This is because `set(...)` will not
update an existing cache variable unless the `FORCE` argument is
provided.
To fix this this patch adds `FORCE` so the cache is always updated.
rdar://problem/
55323665
Reviewers: vsk, kubamracek
Subscribers: mgorny, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D67530
llvm-svn: 371872
Dan Liew [Fri, 13 Sep 2019 17:31:22 +0000 (17:31 +0000)]
[CMake] Separate the detection Darwin platforms architectures for the
built-ins from the rest of compiler-rt.
The detection of supported platform (os) architectures for Darwin relies
on the `darwin_test_archs()` CMake function. This is used both for
building the builtins (`builtin-config-ix.cmake`) and for the rest of
the compiler-rt (`config-ix.cmake`).
`darwin_test_archs()` implements a cache, presumably to speed up CMake
re-configures. Unfortunately this caching is buggy because it depends
on external global state (i.e. the `TEST_COMPILE_ONLY` variable) and
this is not taken into account. For `config-ix.cmake`
`TEST_COMPILE_ONLY` is not set and for `builtin-config-ix.cmake`
`TEST_COMPILE_ONLY` is set to `On`. This makes the
`darwin_test_archs()` function racey in the sense that a call from one
calling context will poison the cache for the other calling context.
This is actually an issue George Karpenkov discovered a while back
and had an incomplete patch for (https://reviews.llvm.org/D45337)
but this was never merged.
To workaround this, this patch switches to using a different set of
variables for the platform architecture builtins, i.e.
`DARWIN_<OS>_ARCHS` -> `DARWIN_<OS>_BUILTIN_ARCHS`. This avoids the
cache poisoning problem because the cached variable names are different.
This also has the advantage that the the configured architectures for
builtins and the rest of the compiler-rt are now independent and
can be set differently if necessary.
Note in `darwin_test_archs()` we also now pass `-w` to the compiler
because `try_compile_only()` treats compiler warnings as errors. This
was extremely fragile because compiler warnings (can easily appear due
to a buggy compiler or SDK headers) would cause compiler-rt to think an
architecture on Darwin wasn't supported.
rdar://problem/
48637491
llvm-svn: 371871