Alexey Bataev [Mon, 1 Apr 2019 14:25:31 +0000 (14:25 +0000)]
[OPENMP] Check that allocated variables are used in private clauses.
According to OpenMP 5.0 standard, 2.11.4 allocate Clause, Restrictions,
For any list item that is specified in the allocate clause on a
directive, a data-sharing attribute clause that may create a private
copy of that list item must be specified on the same directive. Patch
adds the checks for this restriction.
llvm-svn: 357390
Mikael Holmen [Mon, 1 Apr 2019 14:10:10 +0000 (14:10 +0000)]
[InstCombine] Handle vector gep with scalar argument in evaluateInDifferentElementOrder
Summary:
This fixes PR41270.
The recursive function evaluateInDifferentElementOrder expects to be called
on a vector Value, so when we call it on a vector GEP's arguments, we must
first check that the argument is indeed a vector.
Reviewers: reames, spatel
Reviewed By: spatel
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60058
llvm-svn: 357389
Matt Arsenault [Mon, 1 Apr 2019 14:08:26 +0000 (14:08 +0000)]
X86: Fix override warning
llvm-svn: 357388
Mikael Holmen [Mon, 1 Apr 2019 14:06:45 +0000 (14:06 +0000)]
Revert "[InstCombine] Handle vector gep with scalar argument in evaluateInDifferentElementOrder"
This reverts commit
75216a6dbcfe5fb55039ef06a07e419fa875f4a5.
I'll recommit with a better commit message with reference to the
phabricator review.
llvm-svn: 357387
Matt Arsenault [Mon, 1 Apr 2019 14:03:44 +0000 (14:03 +0000)]
InstSimplify: Add baseline test for upcoming change
llvm-svn: 357386
Mikael Holmen [Mon, 1 Apr 2019 13:48:56 +0000 (13:48 +0000)]
[InstCombine] Handle vector gep with scalar argument in evaluateInDifferentElementOrder
This fixes PR41270.
The recursive function evaluateInDifferentElementOrder expects to be called
on a vector Value, so when we call it on a vector GEP's arguments, we must
first check that the argument is indeed a vector.
llvm-svn: 357385
Clement Courbet [Mon, 1 Apr 2019 13:48:50 +0000 (13:48 +0000)]
[X86] Make post-ra scheduling macrofusion-aware.
Subscribers: MatzeB, arsenm, jvesely, nhaehnle, hiraditya, javed.absar, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59688
llvm-svn: 357384
Alexandre Ganea [Mon, 1 Apr 2019 13:36:59 +0000 (13:36 +0000)]
[LLD][COFF] Early dependency detection
We introduce a new class hierarchy for debug types merging (in DebugTypes.h). The end-goal is to parallelize the type merging - please see the plan in D59226.
Previously, dependency discovery was done on the fly, much later, during the type merging loop. Unfortunately, parallelizing the type merging requires the dependencies to be merged in first, before any dependent ObjFile, thus this early discovery.
The overall intention for this path is to discover debug information dependencies at a much earlier stage, when processing input files. Currently, two types of dependency are supported: PDB type servers (when compiling with MSVC /Zi) and precompiled headers OBJs (when compiling with MSVC /Yc and /Yu). Once discovered, an explicit link is added into the dependent ObjFile, through the new debug types class hierarchy introduced in DebugTypes.h.
Differential Revision: https://reviews.llvm.org/D59053
llvm-svn: 357383
Sanjay Patel [Mon, 1 Apr 2019 13:36:40 +0000 (13:36 +0000)]
[InstCombine] eliminate commuted select-shuffles + binop (PR41304)
If we have a commutable vector binop with inverted select-shuffles,
we don't care about the order of the operands in each vector lane:
LHS = shuffle V1, V2, <0, 5, 6, 3>
RHS = shuffle V2, V1, <0, 5, 6, 3>
LHS + RHS --> <V1[0]+V2[0], V2[1]+V1[1], V2[2]+V1[2], V1[3]+V2[3]> --> V1 + V2
PR41304:
https://bugs.llvm.org/show_bug.cgi?id=41304
...is currently titled as an SLP enhancement, but at least for the
given example, we can reduce that in instcombine because we are just
eliminating shuffles.
As noted in the TODO, this could be generalized, but I haven't thought
through those patterns completely, so this is limited to what appears
to be always safe.
Differential Revision: https://reviews.llvm.org/D60048
llvm-svn: 357382
Clement Courbet [Mon, 1 Apr 2019 13:18:34 +0000 (13:18 +0000)]
[X86MacroFusion][NFC] Add more tests.
In preparation for D59688.
llvm-svn: 357381
Krasimir Georgiev [Mon, 1 Apr 2019 11:42:54 +0000 (11:42 +0000)]
[X86] Fix a test from r357317
Summary:
The missing `<` causes the lld command to override the test file, which fails in
environments marking the test files as readonly.
Reviewers: bkramer
Reviewed By: bkramer
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60060
llvm-svn: 357380
Simon Pilgrim [Mon, 1 Apr 2019 10:54:04 +0000 (10:54 +0000)]
[X86][SSE] Add fcmp constant folding tests
Initial test coverage for D60006
llvm-svn: 357379
Luis Marques [Mon, 1 Apr 2019 09:54:14 +0000 (09:54 +0000)]
[RISCV] Add seto pattern expansion
Adds a `seto` pattern expansion. Without it the lowerings of `fcmp one` and
`fcmp ord` would be inefficient due to an unoptimized double negation.
Differential Revision: https://reviews.llvm.org/D59699
llvm-svn: 357378
Fangrui Song [Mon, 1 Apr 2019 08:16:08 +0000 (08:16 +0000)]
[ELF] Rename SyntheticSection::empty to more appropriate isNeeded() with opposite meaning
Summary:
Some synthetic sections can be empty while still being needed, thus they
can't be removed by removeUnusedSyntheticSections(). Rename this member
function to more appropriate isNeeded() with the opposite meaning.
No functional change intended.
Reviewers: ruiu, espindola
Reviewed By: ruiu
Subscribers: jhenderson, grimar, emaste, arichardson, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59982
llvm-svn: 357377
Pavel Labath [Mon, 1 Apr 2019 08:11:46 +0000 (08:11 +0000)]
[Linux/x86] Fix writing of non-gpr registers on newer processors
Summary:
We're using ptrace(PTRACE_SETREGSET, NT_X86_XSTATE) to write all non-gpt
registers on x86 linux. Unfortunately, this method has a quirk, where
the kernel rejects all attempts to write to this area if one supplies a
buffer which is smaller than the area size (even though the kernel will
happily accept partial reads from it).
This means that if the CPU supports some new registers/extensions that
we don't know about (in my case it was the PKRU extension), we will fail
to write *any* non-gpr registers, even those that we know about.
Since this is a situation that's likely to appear again and again, I add
code to NativeRegisterContextLinux_x86_64 to detect the runtime size of
the area, and allocate an appropriate buffer. This does not mean that we
will start automatically supporting all new extensions, but it does mean
that the new extensions will not prevent the old ones from working.
This fixes tests attempting to write to non-gpr registers on new intel
processors (cca Kaby Lake Refresh).
Reviewers: jankratochvil, davezarzycki
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D59991
llvm-svn: 357376
Craig Topper [Mon, 1 Apr 2019 05:26:12 +0000 (05:26 +0000)]
[X86] Use ISD::INTRINSIC_VOID in getTgtMemIntrinsic for truncating stores and scatter intrinsics.
This is the appropriate opcode for only having a chain output. Though I'm not
sure it matters much.
llvm-svn: 357375
Alex Bradbury [Mon, 1 Apr 2019 02:38:27 +0000 (02:38 +0000)]
[RISCV] Don't evaluatePCRelLo if a relocation will be forced (e.g. due to linker relaxation)
A pcrel_lo will point to the associated pcrel_hi fixup which in turn points to
the real target. RISCVMCExpr::evaluatePCRelLo will work around this
indirection in order to allow the fixup to be evaluate properly. However, if
relocations are forced (e.g. due to linker relaxation is enabled) then its
evaluation is undesired and will result in a relocation with the wrong target.
This patch modifies evaluatePCRelLo so it will not try to evaluate if the
fixup will be forced as a relocation. A new helper method is added to
RISCVAsmBackend to query this.
Differential Revision: https://reviews.llvm.org/D59686
llvm-svn: 357374
Rui Ueyama [Mon, 1 Apr 2019 00:25:17 +0000 (00:25 +0000)]
Simplify. NFC.
llvm-svn: 357373
Rui Ueyama [Mon, 1 Apr 2019 00:11:24 +0000 (00:11 +0000)]
Replace `typedef A B` with `using B = A`. NFC.
I did this using Perl.
Differential Revision: https://reviews.llvm.org/D60003
llvm-svn: 357372
Sylvestre Ledru [Sun, 31 Mar 2019 21:53:00 +0000 (21:53 +0000)]
Spelling correction for docs for cppcoreguidelines-owning-memory
Summary: There's a typo in the docs, as mentioned in the title. Please see the diff.
Reviewers: JonasToth
Subscribers: sylvestre.ledru, nemanjai, kbarton, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D60050
llvm-svn: 357371
Eric Fiselier [Sun, 31 Mar 2019 20:49:06 +0000 (20:49 +0000)]
Make common_type's implementation common
Summary:
Currently the C++03 implementation of common_type has much different behavior than the C++11 one. This causes bugs, including inside `<chrono>`.
This patch unifies the two implementations as best it can. The more code they share, the less their behavior can diverge.
Reviewers: mclow.lists, ldionne, sbenza
Reviewed By: mclow.lists, ldionne
Subscribers: libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D59678
llvm-svn: 357370
Nico Weber [Sun, 31 Mar 2019 16:49:54 +0000 (16:49 +0000)]
gn build: Add build files for most clang-tools-extra unit tests
Differential Revision: https://reviews.llvm.org/D60038
llvm-svn: 357369
Sanjay Patel [Sun, 31 Mar 2019 15:45:47 +0000 (15:45 +0000)]
[InstCombine] add tests for inverted select-shuffles + binop (PR41304); NFC
llvm-svn: 357368
Sanjay Patel [Sun, 31 Mar 2019 15:11:34 +0000 (15:11 +0000)]
[x86] allow movmsk with 2-element reductions
One motivation for making this change is that the lack of using movmsk is likely
a main source of perf difference between clang and gcc on the C-Ray benchmark as
shown here:
https://www.phoronix.com/scan.php?page=article&item=gcc-clang-2019&num=5
...but this change alone isn't enough to solve that problem.
The 'all-of' examples show what is likely the worst case trade-off: we end up with
an extra instruction (or 2 if we count the 'xor' register clearing). The 'any-of'
examples look clearly better using movmsk because we've traded 2 vector instructions
for 2 scalar instructions, and movmsk may have better timing than the generic 'movq'.
If we examine the llvm-mca output for these cases, it appears that even though the
'all-of' movmsk variant looks worse on paper, it would perform better on both
Haswell and Jaguar.
$ llvm-mca -mcpu=haswell no_movmsk.s -timeline
Iterations: 100
Instructions: 400
Total Cycles: 504
Total uOps: 400
Dispatch Width: 4
uOps Per Cycle: 0.79
IPC: 0.79
Block RThroughput: 1.0
$ llvm-mca -mcpu=haswell movmsk.s -timeline
Iterations: 100
Instructions: 600
Total Cycles: 358
Total uOps: 600
Dispatch Width: 4
uOps Per Cycle: 1.68
IPC: 1.68
Block RThroughput: 1.5
$ llvm-mca -mcpu=btver2 no_movmsk.s -timeline
Iterations: 100
Instructions: 400
Total Cycles: 407
Total uOps: 400
Dispatch Width: 2
uOps Per Cycle: 0.98
IPC: 0.98
Block RThroughput: 2.0
$ llvm-mca -mcpu=btver2 movmsk.s -timeline
Iterations: 100
Instructions: 600
Total Cycles: 311
Total uOps: 600
Dispatch Width: 2
uOps Per Cycle: 1.93
IPC: 1.93
Block RThroughput: 3.0
Finally, there may be CPUs where movmsk is horribly slow (old AMD small cores?), but if
that's true, then we're also almost certainly making the wrong transform already for
reductions with >2 elements, so that should be fixed independently.
Differential Revision: https://reviews.llvm.org/D59997
llvm-svn: 357367
Sanjay Patel [Sun, 31 Mar 2019 15:01:30 +0000 (15:01 +0000)]
[InstCombine] canonicalize select shuffles by commuting
In PR41304:
https://bugs.llvm.org/show_bug.cgi?id=41304
...we have a case where we want to fold a binop of select-shuffle (blended) values.
Rather than try to match commuted variants of the pattern, we can canonicalize the
shuffles and check for mask equality with commuted operands.
We don't produce arbitrary shuffle masks in instcombine, but select-shuffles are a
special case that the backend is required to handle because we already canonicalize
vector select to this shuffle form.
So there should be no codegen difference from this change. It's possible that this
improves CSE in IR though.
Differential Revision: https://reviews.llvm.org/D60016
llvm-svn: 357366
Liang Zou [Sun, 31 Mar 2019 14:49:00 +0000 (14:49 +0000)]
fix typo: "\t" => " "
Reviewers: llvm.org, Jim
Reviewed By: Jim
Subscribers: arsenm, jvesely, nhaehnle, rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59983
llvm-svn: 357365
David Chisnall [Sun, 31 Mar 2019 11:22:33 +0000 (11:22 +0000)]
[gnustep-objc] Make the GNUstep v2 ABI work for Windows DLLs.
Summary:
Based on a patch by Dustin Howett, modified to not change the ABI for
ELF platforms.
Use more Windows-like section names.
This also makes things more readable by PE/COFF debug tools that assume
sections fit in the first header.
With these changes in, it is now possible to build a working WinObjC
with clang and the WinObjC version of GNUstep libobjc (upstream GNUstep
libobjc + a work around for incremental linking, which can be removed
once LINK.EXE gains a feature to opt sections out of receiving extra
padding during an incremental link).
Patch by Dustin Howett!
Reviewers: DHowett-MSFT
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58724
llvm-svn: 357364
David Chisnall [Sun, 31 Mar 2019 11:22:26 +0000 (11:22 +0000)]
COMDAT-fold block descriptors.
Without this change, linking multiple objects containing block
descriptors together on Windows will generate duplicate symbol errors.
Patch by Dustin Howett!
Differential Revision: https://reviews.llvm.org/D58807
llvm-svn: 357363
David Chisnall [Sun, 31 Mar 2019 11:22:19 +0000 (11:22 +0000)]
[objc-gnustep] Use .init_array not .ctors when requested.
This doesn't make a difference most of the time but FreeBSD/ARM doesn't
run anything in the .ctors array.
llvm-svn: 357362
Fedor Sergeev [Sun, 31 Mar 2019 10:15:39 +0000 (10:15 +0000)]
SafepointIRVerifier port to new Pass Manager
Straightforward port of StatepointIRVerifier pass to new Pass Manager framework.
Fix By: skatkov
Reviewed By: fedor.sergeev
Differential Revision: https://reviews.llvm.org/D59825
This is a re-land of r357147/r357148 with LLVM_ENABLE_MODULES build fixed.
Adding IR/SafepointIRVerifier.h into its own module.
llvm-svn: 357361
Luqman Aden [Sun, 31 Mar 2019 08:58:50 +0000 (08:58 +0000)]
[NFC][InstCombine] Add tests for combining icmp of no-wrap sub w/ constant.
llvm-svn: 357360
Fangrui Song [Sun, 31 Mar 2019 08:48:19 +0000 (08:48 +0000)]
Range-style std::find{,_if} -> llvm::find{,_if}. NFC
llvm-svn: 357359
Nico Weber [Sun, 31 Mar 2019 00:03:37 +0000 (00:03 +0000)]
gn build: Merge r357340
llvm-svn: 357358
Nico Weber [Sun, 31 Mar 2019 00:01:24 +0000 (00:01 +0000)]
gn build: Merge r357326
llvm-svn: 357357
Nico Weber [Sat, 30 Mar 2019 23:09:10 +0000 (23:09 +0000)]
Rename IncludeFixerTests to ClangIncludeFixerTests and ChangeNamespaceTests to ClangChangeNamespaceTests
Follow-up to r356897 and r356254.
llvm-svn: 357356
Simon Pilgrim [Sat, 30 Mar 2019 20:24:26 +0000 (20:24 +0000)]
[SystemZ] Remove fcmp undef from reduced test
Pre-commit for D60006 (Add fcmp UNDEF handling to SelectionDAG::FoldSetCC)
Approved by @uweigand (Ulrich Weigand)
llvm-svn: 357355
Simon Pilgrim [Sat, 30 Mar 2019 20:16:16 +0000 (20:16 +0000)]
[MIPS] Remove fcmp undef from reduced test
Pre-commit for D60006 (Add fcmp UNDEF handling to SelectionDAG::FoldSetCC)
Approved by @atanasyan (Simon Atanasyan)
llvm-svn: 357354
Craig Topper [Sat, 30 Mar 2019 18:59:17 +0000 (18:59 +0000)]
[X86] Teach isel for RMW binops to handle negate
Negate updates flags like a subtract. We should be able to use the flags from the RMW form of negate when we have (store (X86ISD::SUB 0, load A), A)
Differential Revision: https://reviews.llvm.org/D60007
llvm-svn: 357353
Alex Bradbury [Sat, 30 Mar 2019 17:59:30 +0000 (17:59 +0000)]
[RISCV] Add codegen support for ilp32f, ilp32d, lp64f, and lp64d ("hard float") ABIs
This patch adds support for the RISC-V hard float ABIs, building on top of
rL355771, which added basic target-abi parsing and MC layer support. It also
builds on some re-organisations and expansion of the upstream ABI and calling
convention tests which were recently committed directly upstream.
A number of aspects of the RISC-V float hard float ABIs require frontend
support (e.g. flattening of structs and passing int+fp for fp+fp structs in a
pair of registers), and will be addressed in a Clang patch.
As can be seen from the tests, it would be worthwhile extending
RISCVMergeBaseOffsets to handle constant pool as well as global accesses.
Differential Revision: https://reviews.llvm.org/D59357
llvm-svn: 357352
Simon Pilgrim [Sat, 30 Mar 2019 17:12:29 +0000 (17:12 +0000)]
[X86][SSE] detectAVGPattern - Match zext(or(x,y)) 'add like' patterns (PR41316)
Fixes PR41316 where the expanded PAVG intrinsic had had one of its ADDs turned into an OR due to its operands having no conflicting bits.
llvm-svn: 357351
Alex Bradbury [Sat, 30 Mar 2019 15:53:38 +0000 (15:53 +0000)]
[RISCV] Add RV64 CHECK lines to test/CodeGen/RISCV/vararg.ll and prepare for hard float tests
vararg.ll previously missed RV64 tests. This patch also prepares for using
vararg.ll to test handling of varargs for the ilp32f/ilp32d/lp64f/lp64d hard
float ABIs. In these ABIs, varargs are passed as in either the ilp32 or lp64
ABI. Due to some slight codegen differences, different check lines are needed
for when RV32D is enabled.
llvm-svn: 357350
Simon Pilgrim [Sat, 30 Mar 2019 15:31:53 +0000 (15:31 +0000)]
[X86][SSE] detectAVGPattern - begin generalizing ADD matches
Move the ADD matching into a helper - first NFC stage towards supporting 'ADD like' cases such as in PR41316
llvm-svn: 357349
Fangrui Song [Sat, 30 Mar 2019 14:38:51 +0000 (14:38 +0000)]
[cmake] Change deprecated $<CONFIG> to $<CONFIGURATION>. NFC
See rL357338 for a similar change. The informational expression
$<CONFIGURATION> has been deprecated since CMake 3.0
llvm-svn: 357348
Fangrui Song [Sat, 30 Mar 2019 14:08:59 +0000 (14:08 +0000)]
[llvm-objcopy] Replace the size() helper with SectionTableRef::size
Summary:
BTW, STLExtras.h provides llvm::size() which is similar to std::size()
for random access iterators. However, if we prefer qualified
llvm::size(), the member function .size() will be more convenient.
Reviewers: jhenderson, jakehehrlich, rupprecht, grimar, alexshap, espindola
Reviewed By: grimar
Subscribers: emaste, arichardson, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60028
llvm-svn: 357347
Simon Pilgrim [Sat, 30 Mar 2019 13:53:11 +0000 (13:53 +0000)]
[X86][SSE] Add PAVG test case from PR41316
llvm-svn: 357346
Paul Hoad [Sat, 30 Mar 2019 13:05:40 +0000 (13:05 +0000)]
[clang-format] [PR41187] moves Java import statements to the wrong location if code contains statements that start with the word import
Summary:
Import sorting of java file, incorrectly move import statement to after a function beginning with the word import.
Make 1 character change to regular expression to ensure there is always at least one space/tab after the word import
Previously clang-format --style="LLVM" would format
```
import X;
class C {
void m() {
importFile();
}
}
```
as
```
class C {
void m() {
importFile();
import X;
}
}
```
Reviewers: djasper, klimek, reuk, JonasToth
Reviewed By: klimek
Subscribers: cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D59684
llvm-svn: 357345
Reuben Thomas [Sat, 30 Mar 2019 12:32:35 +0000 (12:32 +0000)]
[clang-format]: Add NonEmptyParentheses spacing option
This patch aims to add support for the following rules from the JUCE coding standards:
- Always put a space before an open parenthesis that contains text - e.g. foo (123);
- Never put a space before an empty pair of open/close parenthesis - e.g. foo();
Patch by Reuben Thomas
Differential Revision: https://reviews.llvm.org/D55170
llvm-svn: 357344
Heejin Ahn [Sat, 30 Mar 2019 11:04:48 +0000 (11:04 +0000)]
[WebAssembly] Fix unwind destination mismatches in CFG stackify
Summary:
Linearing the control flow by placing `try`/`end_try` markers can create
mismatches in unwind destinations. This patch resolves these mismatches
by wrapping those instructions with an incorrect unwind destination with
a nested `try`/`catch`/`end_try` and branching to the right destination
within the new catch block.
Reviewers: dschuff
Subscribers: sunfish, sbc100, jgravelle-google, chrib, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D48345
llvm-svn: 357343
Heejin Ahn [Sat, 30 Mar 2019 09:29:57 +0000 (09:29 +0000)]
[WebAssembly] Run ExplicitLocals pass after CFGStackify
Summary:
While this does not change any final output, this will greatly simplify
ixing unwind destination mismatches in CFGStackify (D48345), because we
have to create some new registers there.
Reviewers: dschuff
Subscribers: sunfish, sbc100, jgravelle-google, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59652
llvm-svn: 357342
Alex Bradbury [Sat, 30 Mar 2019 09:15:47 +0000 (09:15 +0000)]
[RISCV] Add DAGCombine for (SplitF64 (ConstantFP x))
The SplitF64 node is used on RV32D to convert an f64 directly to a pair of i32
(necessary as bitcasting to i64 isn't legal). When performed on a ConstantFP,
this will result in a FP load from the constant pool followed by a store to
the stack and two integer loads from the stack (necessary as there is no way
to directly move between f64 FPRs and i32 GPRs on RV32D). It's always cheaper
to just materialise integers for the lo and hi parts of the FP constant, so do
that instead.
llvm-svn: 357341
Anton Afanasyev [Sat, 30 Mar 2019 08:42:48 +0000 (08:42 +0000)]
Adds `-ftime-trace` option to clang that produces Chrome `chrome://tracing` compatible JSON profiling output dumps.
This change adds hierarchical "time trace" profiling blocks that can be visualized in Chrome, in a "flame chart" style. Each profiling block can have a "detail" string that for example indicates the file being processed, template name being instantiated, function being optimized etc.
This is taken from GitHub PR: https://github.com/aras-p/llvm-project-
20170507/pull/2
Patch by Aras Pranckevičius.
Differential Revision: https://reviews.llvm.org/D58675
llvm-svn: 357340
Alex Bradbury [Sat, 30 Mar 2019 05:24:42 +0000 (05:24 +0000)]
[RISCV][NFC] Remove floating point operations from test/CodeGen/RISCV/vararg.ll
This minimises differences in output when compiling with hardware floating
point support, which will be done in a future patch (to demonstrate the same
vararg calling convention is used).
llvm-svn: 357339
Shoaib Meenai [Sat, 30 Mar 2019 01:35:01 +0000 (01:35 +0000)]
[cmake] Remove use of deprecated generator expression. NFC
Use $<CONFIG> instead of $<CONFIGURATION>, since the latter has been
deprecated since CMake 3.0, and the former is entirely equivalent.
llvm-svn: 357338
Heejin Ahn [Sat, 30 Mar 2019 01:31:11 +0000 (01:31 +0000)]
[WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG
Summary:
Currently we create a routing block to the dispatch block for every
predecessor of every entry. So the total number of routing blocks
created will be (# of preds) * (# of entries). But we don't need to do
this: we need at most 2 routing blocks per loop entry, one for when the
predecessor is inside the loop and one for it is outside the loop. (We
can't merge these into one because this will creates another loop cycle
between blocks inside and blocks outside) This patch fixes this and
creates at most 2 routing blocks per entry.
This also renames variable `Split` to `Routing`, which I think is a bit
clearer.
Reviewers: kripken
Subscribers: sunfish, dschuff, sbc100, jgravelle-google, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59462
llvm-svn: 357337
David Zarzycki [Sat, 30 Mar 2019 00:00:19 +0000 (00:00 +0000)]
[CMake] Add missing test dep
lit/SymbolFile/NativePDB/globals-bss.cpp needs llvm-readobj
llvm-svn: 357336
Artem Dergachev [Fri, 29 Mar 2019 23:56:53 +0000 (23:56 +0000)]
[analyzer] MIGChecker: Add support for more deallocator APIs.
Differential Revision: https://reviews.llvm.org/D59914
llvm-svn: 357335
Hubert Tong [Fri, 29 Mar 2019 23:33:04 +0000 (23:33 +0000)]
[lit] Set shlibpath_var on AIX
Summary:
When building the `check-all` target on AIX, lit produces
```
warning: unable to inject shared library path on 'AIX'
```
This patch addresses this. `LIBPATH` is the environment variable of
interest on AIX. Newer versions of AIX may consider `LD_LIBRARY_PATH`,
but only when `LIBPATH` is unset.
Reviewers: xingxue, jasonliu, sfertile, serge-sans-paille
Reviewed By: xingxue
Subscribers: jsji, cfe-commits, llvm-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59741
llvm-svn: 357334
Hubert Tong [Fri, 29 Mar 2019 23:32:47 +0000 (23:32 +0000)]
[Support] Implement is_local_impl with AIX mntctl
Summary:
On AIX, we can determine whether a filesystem is remote using `mntctl`.
If the information is not found, then claim that the file is remote
(since that is the more restrictive case). Testing for the associated
interface is restored with a modified version of the unit test from
rL295768.
Reviewers: jasonliu, xingxue
Reviewed By: xingxue
Subscribers: jsji, apaprocki, Hahnfeld, zturner, krytarowski, kristina, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58801
llvm-svn: 357333
Artem Dergachev [Fri, 29 Mar 2019 23:11:10 +0000 (23:11 +0000)]
Revert "[analyzer] Introduce a simplified API for adding custom path notes."
This reverts commit r357323.
ASan leaks found by a buildbot :)
Differential Revision: https://reviews.llvm.org/D58367
llvm-svn: 357332
Philip Reames [Fri, 29 Mar 2019 23:10:01 +0000 (23:10 +0000)]
[LoopPredication] Remove stale TODO
llvm-svn: 357331
Philip Reames [Fri, 29 Mar 2019 23:06:57 +0000 (23:06 +0000)]
[LoopPredication] Use the builder's insertion point everywhere [NFC]
llvm-svn: 357330
Artem Dergachev [Fri, 29 Mar 2019 22:57:49 +0000 (22:57 +0000)]
[analyzer] PR41239: Fix a crash on invalid source location in NoStoreFuncVisitor.
It turns out that SourceManager::isInSystemHeader() crashes when an invalid
source location is passed into it. Invalid source locations are relatively
common: not only they come from body farms, but also, say, any function in C
that didn't come with a forward declaration would have an implicit
forward declaration with invalid source locations.
There's a more comfy API for us to use in the Static Analyzer:
CallEvent::isInSystemHeader(), so just use that.
Differential Revision: https://reviews.llvm.org/D59901
llvm-svn: 357329
Sam Clegg [Fri, 29 Mar 2019 22:56:39 +0000 (22:56 +0000)]
Re-land "[WebAssembly] Improve invalid relocation error message""
See https://reviews.llvm.org/D59860
The initial version of this change effected more than just the
error message. This version is scoped down to only effect the error
itself.
llvm-svn: 357328
Alina Sbirlea [Fri, 29 Mar 2019 22:55:59 +0000 (22:55 +0000)]
[MemorySSA] Temporary fix assert when reaching 0 limit.
llvm-svn: 357327
Artem Dergachev [Fri, 29 Mar 2019 22:49:30 +0000 (22:49 +0000)]
[analyzer] Move taint API from ProgramState to a separate header. NFC.
It is now an inter-checker communication API, similar to the one that
connects MallocChecker/CStringChecker/InnerPointerChecker: simply a set of
setters and getters for a state trait.
Differential Revision: https://reviews.llvm.org/D59861
llvm-svn: 357326
Artem Dergachev [Fri, 29 Mar 2019 22:43:34 +0000 (22:43 +0000)]
[analyzer] PR37501: Disable assertion for logical op short circuit evaluation.
The transfer function for the CFG element that represents a logical operation
computes the value of the operation and does nothing else. The element
appears after all the short circuit decisions were made, so they don't need
to be made again at this point.
Because our expression evaluation is imprecise, it is often hard to
discriminate between:
(1) we don't know the value of the RHS because we failed to evaluate it
and
(2) we don't know the value of the RHS because it didn't need to be evaluated.
This is hard because it depends on our knowledge about the value of the LHS
(eg., if LHS is true, then RHS in (LHS || RHS) doesn't need to be computed)
but LHS itself may have been evaluated imprecisely and we don't know whether
it is true or not. Additionally, the Analyzer wouldn't necessarily even remember
what the value of the LHS was because theoretically it's not really necessary
to know it for any future evaluations.
In order to work around these issues, the transfer function for logical
operations consists in looking at the ExplodedGraph we've constructed so far
in order to figure out from which CFG direction did we arrive here.
Such post-factum backtracking that doesn't involve looking up LHS and RHS values
is usually possible. However sometimes it fails because when we deduplicate
exploded nodes with the same program point and the same program state we may end
up in a situation when we reached the same program point from two or more
different directions.
By removing the assertion, we admit that the procedure indeed sometimes fails to
work. When it fails, we also admit that we don't know the value of the logical
operator.
Differential Revision: https://reviews.llvm.org/D59857
llvm-svn: 357325
Sanjoy Das [Fri, 29 Mar 2019 22:27:10 +0000 (22:27 +0000)]
Try to fix buildbot error
Error is:
llvm/lib/Analysis/ScalarEvolution.cpp:3534:10: error: chosen constructor is explicit in copy-initialization
return {UniqueSCEVs.FindNodeOrInsertPos(ID, IP), std::move(ID), IP};
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib/gcc/aarch64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/tuple:479:19: note: explicit constructor declared here
constexpr tuple(_UElements&&... __elements)
^
1 error generated.
llvm-svn: 357324
Artem Dergachev [Fri, 29 Mar 2019 22:21:00 +0000 (22:21 +0000)]
[analyzer] Introduce a simplified API for adding custom path notes.
Almost all path-sensitive checkers need to tell the user when something specific
to that checker happens along the execution path but does not constitute a bug
on its own. For instance, a call to operator delete in C++ has consequences
that are specific to a use-after-free bug. Deleting an object is not a bug
on its own, but when the Analyzer finds an execution path on which a deleted
object is used, it'll have to explain to the user when exactly during that path
did the deallocation take place.
Historically such custom notes were added by implementing "bug report visitors".
These visitors were post-processing bug reports by visiting every ExplodedNode
along the path and emitting path notes whenever they noticed that a change that
is relevant to a bug report occurs within the program state. For example,
it emits a "memory is deallocated" note when it notices that a pointer changes
its state from "allocated" to "deleted".
The "visitor" approach is powerful and efficient but hard to use because
such preprocessing implies that the developer first models the effects
of the event (say, changes the pointer's state from "allocated" to "deleted"
as part of operator delete()'s transfer function) and then forgets what happened
and later tries to reverse-engineer itself and figure out what did it do
by looking at the report.
The proposed approach tries to avoid discarding the information that was
available when the transfer function was evaluated. Instead, it allows the
developer to capture all the necessary information into a closure that
will be automatically invoked later in order to produce the actual note.
This should reduce boilerplate and avoid very painful logic duplication.
On the technical side, the closure is a lambda that's put into a special kind of
a program point tag, and a special bug report visitor visits all nodes in the
report and invokes all note-producing closures it finds along the path.
For now it is up to the lambda to make sure that the note is actually relevant
to the report. For instance, a memory deallocation note would be irrelevant when
we're reporting a division by zero bug or if we're reporting a use-after-free
of a different, unrelated chunk of memory. The lambda can figure these thing out
by looking at the bug report object that's passed into it.
A single checker is refactored to make use of the new functionality: MIGChecker.
Its program state is trivial, making it an easy testing ground for the first
version of the API.
Differential Revision: https://reviews.llvm.org/D58367
llvm-svn: 357323
Sam Clegg [Fri, 29 Mar 2019 22:08:56 +0000 (22:08 +0000)]
[libc++abi] Don't set POSITION_INDEPENDENT_CODE when building static library
With the current WebAssembly backend, objects built with -fPIC are not
compatible with static linking. libc++abi was (mistakenly?) adding
-fPIC to the objects it was including in a static library.
IIUC this change should also mean the static build can be more efficient
on all platforms.
Differential Revision: https://reviews.llvm.org/D60005
llvm-svn: 357322
Thomas Lively [Fri, 29 Mar 2019 22:00:18 +0000 (22:00 +0000)]
[WebAssembly] Add mutable globals feature
Summary:
This feature is not actually used for anything in the WebAssembly
backend, but adding it allows users to get it into the target features
sections of their objects, which makes these objects
future-compatible.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, jdoerfert, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D60013
llvm-svn: 357321
Sanjoy Das [Fri, 29 Mar 2019 22:00:12 +0000 (22:00 +0000)]
[SCEV] Check the cache in get{S|U}MaxExpr before doing any work
Summary:
This lets us avoid e.g. checking if A >=s B in getSMaxExpr(A, B) if we've
already established that (A smax B) is the best we can do.
Fixes PR41225.
Reviewers: asbirlea
Subscribers: mcrosier, jlebar, bixia, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60010
llvm-svn: 357320
Alina Sbirlea [Fri, 29 Mar 2019 21:56:09 +0000 (21:56 +0000)]
[MemorySSA] Limit clobber walks.
Summary: This patch limits all getClobberingMemoryAccess() walks to MaxCheckLimit.
Reviewers: george.burgess.iv
Subscribers: sanjoy, jlebar, Prazek, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59569
llvm-svn: 357319
Jessica Paquette [Fri, 29 Mar 2019 21:39:36 +0000 (21:39 +0000)]
[GlobalISel][AArch64] Add isel support for G_INSERT_VECTOR_ELT on v2s32s
This adds support for v2s32 vector inserts, and updates the selection +
regbankselect tests for G_INSERT_VECTOR_ELT.
Differential Revision: https://reviews.llvm.org/D59910
llvm-svn: 357318
Amara Emerson [Fri, 29 Mar 2019 21:30:51 +0000 (21:30 +0000)]
[X86] When using Win64 ABI, exit with error if SSE is disabled for varargs
We need XMM registers to handle varargs with the Win64 ABI. Before we would
silently generate bad code resulting in an assertion failure elsewhere in the
backend.
llvm-svn: 357317
Alexandre Ganea [Fri, 29 Mar 2019 21:24:19 +0000 (21:24 +0000)]
Fix build following r357308 : Ensure only live thunks are considered when creating import modules
llvm-svn: 357316
Alina Sbirlea [Fri, 29 Mar 2019 21:16:31 +0000 (21:16 +0000)]
[MemorySSA] Don't optimize incomplete phis.
Summary:
MemoryPhis cannot be optimized out until they are complete.
Resolves PR41254.
Reviewers: george.burgess.iv
Subscribers: sanjoy, jlebar, Prazek, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59966
llvm-svn: 357315
Reid Kleckner [Fri, 29 Mar 2019 21:00:22 +0000 (21:00 +0000)]
Don't copy the .drective section with std::string
Both COFF and bitcode input files expose these as stable strings.
llvm-svn: 357314
Jonas Devlieghere [Fri, 29 Mar 2019 20:56:52 +0000 (20:56 +0000)]
[ScriptInterpreterPython] Fix the unit test after refactor
llvm-svn: 357313
Alexander Kornienko [Fri, 29 Mar 2019 20:55:29 +0000 (20:55 +0000)]
[clang-tidy] Fix PR28406
Fix the crash resulting from a careless use of getLocWithOffset. At the
beginning of a macro expansion it produces an invalid SourceLocation that causes
an assertion failure later on.
llvm-svn: 357312
Thomas Lively [Fri, 29 Mar 2019 20:43:49 +0000 (20:43 +0000)]
[WebAssembly] "atomics" feature requires shared memory
Summary:
Makes it a linker error if the "atomics" feature is used but the user
does not opt in to shared memory or if "atomics" is disallowed but the
user does opt in to shared memory. Also check that an appropriate max
memory size is supplied if shared memory is used.
Reviewers: sbc100, aheejin
Subscribers: dschuff, jgravelle-google, sunfish, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59281
llvm-svn: 357310
Nirav Dave [Fri, 29 Mar 2019 20:26:23 +0000 (20:26 +0000)]
[DAGCombiner] Rewrite ImproveLifetimeNodeChain to avoid DAG loop.
Avoid EXPENSIVE_CHECK failure. NFCI.
llvm-svn: 357309
Alexandre Ganea [Fri, 29 Mar 2019 20:25:34 +0000 (20:25 +0000)]
[LLD][COFF] Generate import modules & COFF groups in PDB
Generate import modules for each imported DLL, along with its symbol stream.
Also create COFF groups in the * Linker * module, one for each PartialSection (input, unmerged sections)
Currently COFF groups are disabled for MINGW because it significantly increases PDB sizes. We could enable that later with an option.
The overall objective for this change is to support code hot patching tools. Such tools need to know the import libraries used, from the PDB alone.
Differential Revision: https://reviews.llvm.org/D54802
llvm-svn: 357308
Jonas Devlieghere [Fri, 29 Mar 2019 20:17:20 +0000 (20:17 +0000)]
[Python] Remove Python include from ScriptInterpreterPython.h
This patch limits the scope of the python header to the implementation
of the python script interpreter plugin. ScriptInterpreterPython is now
an abstract interface that doesn't expose any Python specific types, and
is implemented by the ScriptInterpreterPythonImpl.
Differential revision: https://reviews.llvm.org/D59976
llvm-svn: 357307
Louis Dionne [Fri, 29 Mar 2019 20:11:24 +0000 (20:11 +0000)]
[pstl] Qualify calls to internal functions
This guards against unintended ADL issues.
Thanks to Thomas Rogers for the patch.
Differential Revision: https://reviews.llvm.org/D60009
llvm-svn: 357306
Alexandre Ganea [Fri, 29 Mar 2019 19:58:58 +0000 (19:58 +0000)]
[LLD][COFF] Improve checkFailIfMismatch()
As suggested by ruiu here (https://reviews.llvm.org/D58910#1425484), defer a call to toString(File) until it's really needed (if there's an error)
Differential Revision: https://reviews.llvm.org/D59411
llvm-svn: 357305
Erik Pilkington [Fri, 29 Mar 2019 19:53:41 +0000 (19:53 +0000)]
[Sema] Avoid sending a dependent expression to the constant evaluator.
Fixes llvm.org/PR41286
llvm-svn: 357304
Heejin Ahn [Fri, 29 Mar 2019 19:36:51 +0000 (19:36 +0000)]
[WebAssembly] Handle END_LOOP in unreachable BB in CFGStackify
Summary:
This fixes crashes when a BB in which an END_LOOP is to be placed is
unreachable and does not have any predecessors. Fixes PR41307.
Reviewers: dschuff
Subscribers: yurydelendik, sbc100, jgravelle-google, sunfish, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60004
llvm-svn: 357303
Matt Arsenault [Fri, 29 Mar 2019 19:14:54 +0000 (19:14 +0000)]
AMDGPU: Remove dx10-clamp from subtarget features
Since this can be set with s_setreg*, it should not be a subtarget
property. Set a default based on the calling convention, and Introduce
a new amdgpu-dx10-clamp attribute to override this if desired.
Also introduce a new amdgpu-ieee attribute to match.
The values need to match to allow inlining. I think it is OK for the
caller's dx10-clamp attribute to override the callee, but there
doesn't appear to be the infrastructure to do this currently without
definining the attribute in the generic Attributes.td.
Eventually the calling convention lowering will need to insert a mode
switch somewhere for these.
llvm-svn: 357302
Simon Pilgrim [Fri, 29 Mar 2019 19:14:52 +0000 (19:14 +0000)]
[Hexagon] Remove fcmp undef from reduced tests
Pre-commit for D60006 (Add fcmp UNDEF handling to SelectionDAG::FoldSetCC)
Approved by @kparzysz (Krzysztof Parzyszek)
llvm-svn: 357301
Craig Topper [Fri, 29 Mar 2019 19:09:37 +0000 (19:09 +0000)]
[X86] Add test cases showing failure to use RMW form of negate when only flags are used. NFC
llvm-svn: 357300
Nirav Dave [Fri, 29 Mar 2019 18:50:22 +0000 (18:50 +0000)]
[DAG] Avoid redundancy in StoreMerge TokenFactor generation.
Avoid generating redundant TokenFactor when all merged stores have
the same chain.
llvm-svn: 357299
Volodymyr Sapsai [Fri, 29 Mar 2019 18:47:07 +0000 (18:47 +0000)]
[Sema] Fix assertion when `auto` parameter in lambda has an attribute.
Fixes the assertion
> no Attr* for AttributedType*
> UNREACHABLE executed at llvm-project/clang/lib/Sema/SemaType.cpp:298!
In `TypeProcessingState::getAttributedType` we put into `AttrsForTypes`
types with `auto` but later in
`TypeProcessingState::takeAttrForAttributedType` we use transformed
types and that's why cannot find `Attr` corresponding to
`AttributedType`.
Fix by keeping `AttrsForTypes` up to date after replacing `AutoType`.
rdar://problem/
47689465
Reviewers: rsmith, arphaman, aaron.ballman
Reviewed By: aaron.ballman
Subscribers: jkorous, dexonsmith, jdoerfert, cfe-commits
Differential Revision: https://reviews.llvm.org/D58659
llvm-svn: 357298
Craig Topper [Fri, 29 Mar 2019 18:36:40 +0000 (18:36 +0000)]
[X86] Use cached OptForSize in X86ISelDAGToDAG.cpp instead of pulling it from the function attribute. NFCI
llvm-svn: 357297
Dan Albert [Fri, 29 Mar 2019 18:34:25 +0000 (18:34 +0000)]
[Driver] Use --warn-shared-textrel for Android.
Android does not allow shared text relocations. Enable the linker
warning to detect them by default.
Reviewers: srhines, pirama
Reviewed By: srhines
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D53344
llvm-svn: 357296
Simon Pilgrim [Fri, 29 Mar 2019 18:23:08 +0000 (18:23 +0000)]
[SystemZ] Regenerate double constant comparison test
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
llvm-svn: 357295
Simon Pilgrim [Fri, 29 Mar 2019 18:22:18 +0000 (18:22 +0000)]
[MIPS] Regenerate double constant comparison test
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
llvm-svn: 357294
Simon Pilgrim [Fri, 29 Mar 2019 18:21:19 +0000 (18:21 +0000)]
[ARM] Regenerate execute-only float comparison tests
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
llvm-svn: 357293
Jonas Devlieghere [Fri, 29 Mar 2019 17:58:07 +0000 (17:58 +0000)]
[ScriptInterpreterPython] Remove unused field (NFC)
The m_lldb_module was initialized but not used.
llvm-svn: 357292
Sanjay Patel [Fri, 29 Mar 2019 17:51:39 +0000 (17:51 +0000)]
[InstCombine] autogenerate complete checks; NFC
llvm-svn: 357291
George Burgess IV [Fri, 29 Mar 2019 17:50:43 +0000 (17:50 +0000)]
Various fixes and additions to creduce-clang-crash.py
Some more additions to the script - mainly reducing the clang args after
the creduce run by removing them one by one and seeing if the crash
reproduces. Other things:
- remove the --crash flag when "fatal error" occurs
- fixed to read stack trace functions from the top
- run creduce on a copy of the original file
Patch by Amy Huang!
Differential Revision: https://reviews.llvm.org/D59725
llvm-svn: 357290