David Zarzycki [Thu, 26 Sep 2019 11:32:02 +0000 (11:32 +0000)]
[Testing] unbreak after r372963
llvm-svn: 372967
Simon Pilgrim [Thu, 26 Sep 2019 11:30:47 +0000 (11:30 +0000)]
MetadataLoader lazyLoadOneMetadata - silence static analyzer dyn_cast<MDNode> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<MDNode> directly and if not assert will fire for us.
llvm-svn: 372966
Raphael Isemann [Thu, 26 Sep 2019 11:30:41 +0000 (11:30 +0000)]
[lldb][modern-type-lookup] Add test for using the ClangModulesDeclVendor
llvm-svn: 372965
Simon Pilgrim [Thu, 26 Sep 2019 11:30:35 +0000 (11:30 +0000)]
Remove local shadow constant. NFCI.
ValueTracking.cpp already has a local static MaxDepth = 6 constant - this one seems to have been missed when rL124183 landed.
llvm-svn: 372964
David Zarzycki [Thu, 26 Sep 2019 11:12:29 +0000 (11:12 +0000)]
[libcxx] Do not implicitly #include assert.h
Users should only get the assert() macros if they explicitly include
them.
Found after switching from the GNU C++ stdlib to the LLVM C++ stdlib.
llvm-svn: 372963
Simon Pilgrim [Thu, 26 Sep 2019 11:09:08 +0000 (11:09 +0000)]
[ValueTracking] Silence static analyzer dyn_cast<Operator> null dereference warnings. NFCI.
The static analyzer is warning about a potential null dereferences, but since the pointer is only used in a switch statement for Operator::getOpcode() (with an empty default) then its easiest just to wrap this in a null test as the dyn_cast might return null here.
llvm-svn: 372962
Tatyana Krasnukha [Thu, 26 Sep 2019 10:57:11 +0000 (10:57 +0000)]
Don't stop execution in batch mode when process stops with SIGINT or SIGSTOP
Summary: Usually, SIGINT and SIGSTOP don't imply a crash, e.g. SIGSTOP is sent on process launch and attach on some platforms.
Differential Revision: https://reviews.llvm.org/D67776
llvm-svn: 372961
Simon Pilgrim [Thu, 26 Sep 2019 10:56:14 +0000 (10:56 +0000)]
MemorySanitizer - silence static analyzer dyn_cast<> null dereference warnings. NFCI.
The static analyzer is warning about a potential null dereferences, but we should be able to use cast<> directly and if not assert will fire for us.
llvm-svn: 372960
Simon Pilgrim [Thu, 26 Sep 2019 10:56:07 +0000 (10:56 +0000)]
PGOMemOPSizeOpt - silence static analyzer dyn_cast<MemIntrinsic> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<MemIntrinsic> directly and if not assert will fire for us.
llvm-svn: 372959
Simon Pilgrim [Thu, 26 Sep 2019 10:55:57 +0000 (10:55 +0000)]
[BPF] Remove unused variables. NFCI.
Fixes a dyn_cast<> null dereference warning.
llvm-svn: 372958
Petar Avramovic [Thu, 26 Sep 2019 10:48:07 +0000 (10:48 +0000)]
[MIPS GlobalISel] Lower aggregate structure return arguments
Implement aggregate structure split to simpler types in splitToValueTypes.
splitToValueTypes is used for return values.
According to MipsABIInfo from clang/lib/CodeGen/TargetInfo.cpp,
aggregate structure arguments for O32 always get simplified and thus
will remain unsupported by the MIPS GlobalISel for the time being.
For O32, aggregate structures can be encountered only for complex number
returns e.g. 'complex float' or 'complex double' from <complex.h>.
Differential Revision: https://reviews.llvm.org/D67963
llvm-svn: 372957
Simon Pilgrim [Thu, 26 Sep 2019 10:35:19 +0000 (10:35 +0000)]
HexagonAsmParser::ParseDirectiveFalign - silence static analyzer dyn_cast<MCConstantExpr> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<MCConstantExpr> directly and if not assert will fire for us.
llvm-svn: 372956
Simon Pilgrim [Thu, 26 Sep 2019 10:23:57 +0000 (10:23 +0000)]
[SLPVectorizer][X86] Add SSE common check prefix to let us merge SSE2+SLM checks
llvm-svn: 372955
Simon Pilgrim [Thu, 26 Sep 2019 10:14:38 +0000 (10:14 +0000)]
[CostModel][X86] Fix SLM <2 x i64> icmp costs
SLM is 2 x slower for <2 x i64> comparison ops than other vector types, we should account for this like we do for SLM <2 x i64> add/sub/mul costs.
This should remove some of the SLM codegen diffs in D43582
llvm-svn: 372954
Haojian Wu [Thu, 26 Sep 2019 09:56:37 +0000 (09:56 +0000)]
[clang-tidy] Make llvm-header-guard work on llvm git monorepo
Reviewers: gribozavr
Reviewed By: gribozavr
Subscribers: xazax.hun, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68026
llvm-svn: 372953
Pavel Labath [Thu, 26 Sep 2019 09:47:32 +0000 (09:47 +0000)]
SystemInitializer: Use Targets.def to selectively initialize ABI plugins
This avoids having to define additional macros in the cmake file, and
and also makes the logic in the cpp files more compact. It is also
easily extendible to other plugin types (instruction emulation?) that
should only be initialized if the corresponding llvm target is built.
Thanks to Ilya Birukov for pointing me to this file.
llvm-svn: 372952
Simon Atanasyan [Thu, 26 Sep 2019 09:13:20 +0000 (09:13 +0000)]
[mips] Relax jalr/jr instructions using R_MIPS_JALR relocation
The R_MIPS_JALR relocation denotes jalr/jr instructions in position
independent code. Both these instructions take a target's address from
the $25 register. If offset to the target symbol fits into the 18-bits,
it's more efficient to replace jalr/jr by bal/b instructions.
Differential Revision: https://reviews.llvm.org/D68057
llvm-svn: 372951
Jonas Paulsson [Thu, 26 Sep 2019 08:38:07 +0000 (08:38 +0000)]
[SystemZ] Recognize mnop-mcount in backend
With -pg -mfentry -mnop-mcount, a nop is emitted instead of the call to
fentry.
Review: Ulrich Weigand
https://reviews.llvm.org/D67765
llvm-svn: 372950
David Zarzycki [Thu, 26 Sep 2019 08:19:44 +0000 (08:19 +0000)]
[Testing] Workaround libcxx bug when OS is "none"
If clang is configured to use libcxx as the default C++ standard
library, then using "none" for the OS in the target triple will cause
libcxx to #error needlessly. Passing -nostdinc++ is a workaround for
these tests. See also: https://reviews.llvm.org/D68075
Please note: this workaround will probably exist for a few years until
the installed version of libcxx is updated.
llvm-svn: 372949
Kadir Cetinkaya [Thu, 26 Sep 2019 07:27:43 +0000 (07:27 +0000)]
[clangd] Add a helper for extracting nonlocal decls in a FunctionDecl
Summary:
To be used by define-inline code action to determine whether the
function/method body will still be valid in another context.
Traverses clang-ast to find all decl nodes under the function decl and stores
the non-local ones.
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67748
llvm-svn: 372948
Craig Topper [Thu, 26 Sep 2019 07:27:26 +0000 (07:27 +0000)]
[X86] Remove isCodeGenOnly from (V)ROUND.*_Int and put it on the non _Int form instead.
This matches what's done for VRNDSCALE and most other instructions.
This mainly determines which instruction will be preferred by
disassembler and assembly parser. The printing and encoding
information is the same.
We prefer the _Int form since it uses the VR128 class due to
intrinsic interface. For some of EVEX features like embedded
rounding, we only select from intrinsics today. So there is
only a VR128 version. So making the VR128 version the preferred
is overally consistent.
llvm-svn: 372947
Raphael Isemann [Thu, 26 Sep 2019 07:06:05 +0000 (07:06 +0000)]
[lldb][NFC] Use AppendEmptyArgument in CompletionRequest constructor
We now have a utility function for this purpose.
(Also fixing the typo in the related comment while I'm at it.)
llvm-svn: 372946
Artem Dergachev [Thu, 26 Sep 2019 07:01:31 +0000 (07:01 +0000)]
[analyzer] A speculative attempt to avoid gcc-7 crashes caused by r372942.
llvm-svn: 372945
Mikael Holmen [Thu, 26 Sep 2019 06:49:37 +0000 (06:49 +0000)]
[SortIncludesTest] Add SortPriority fields to fix -Wmissing-field-initializers after D64695/r372919
llvm-svn: 372944
Mikael Holmen [Thu, 26 Sep 2019 06:35:55 +0000 (06:35 +0000)]
[IfConversion] Disallow TBB == FBB for valid triangles
Summary:
Previously the case
EBB
| \_
| |
| TBB
| /
FBB
was treated as a valid triangle also when TBB and FBB was the same basic
block. This could then lead to an invalid CFG when we removed the edge
from EBB to TBB, since that meant we would also remove the edge from EBB
to FBB.
Since TBB == FBB is quite a degenerated case of a triangle, we now
don't treat it as a valid triangle anymore, and thus we will avoid the
trouble with updating the CFG.
Reviewers: efriedma, dmgreen, kparzysz
Reviewed By: efriedma
Subscribers: bjope, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67832
llvm-svn: 372943
Artem Dergachev [Thu, 26 Sep 2019 06:33:21 +0000 (06:33 +0000)]
[analyzer] Avoid small vectors of non-default-constructibles.
Unconfuses certain compilers.
llvm-svn: 372942
Craig Topper [Thu, 26 Sep 2019 04:42:58 +0000 (04:42 +0000)]
[X86] Mark the EVEX encoded PSADBW instructions as commutable to enable load folding of the other operand.
The SSE and VEX versions are already correct.
llvm-svn: 372941
Keno Fischer [Thu, 26 Sep 2019 02:07:51 +0000 (02:07 +0000)]
[ConstantFolding] Use FoldBitCast correctly
Previously we might attempt to use a BitCast to turn bits into vectors of pointers,
but that requires an inttoptr cast to be legal. Add an assertion to detect the formation of illegal bitcast attempts
early (in the tests, we often constant-fold away the result before getting to this assertion check),
while being careful to still handle the early-return conditions without adding extra complexity in the result.
Patch by Jameson Nash <jameson@juliacomputing.com>.
Differential Revision: https://reviews.llvm.org/D65057
llvm-svn: 372940
Fangrui Song [Thu, 26 Sep 2019 02:02:17 +0000 (02:02 +0000)]
[clang-format] Add SortPriority fields to fix -Wmissing-field-initializers after D64695/r372919
llvm-svn: 372939
Nick Lewycky [Thu, 26 Sep 2019 00:58:55 +0000 (00:58 +0000)]
Improve C API support for atomicrmw and cmpxchg.
atomicrmw and cmpxchg have a volatile flag, so allow them to be get and set with LLVM{Get,Set}Volatile. atomicrmw and fence have orderings, so allow them to be get and set with LLVM{Get,Set}Ordering. Add missing LLVMAtomicRMWBinOpFAdd and LLVMAtomicRMWBinOpFSub enum constants. AtomicCmpXchg also has a weak flag, add a getter/setter for that too. Add a getter/setter for the binary-op of an atomicrmw.
atomicrmw and cmpxchg have a volatile flag, so allow it to be set/get with LLVMGetVolatile and LLVMSetVolatile. Add missing LLVMAtomicRMWBinOpFAdd and LLVMAtomicRMWBinOpFSub enum constants. AtomicCmpXchg also has a weak flag, add a getter/setter for that too. Add a getter/setter for the binary-op of an atomicrmw.
Add LLVMIsA## for CatchSwitchInst, CallBrInst and FenceInst, as well as AtomicCmpXchgInst and AtomicRMWInst.
Update llvm-c-test to include atomicrmw and fence, and to copy volatile for the four applicable instructions.
Differential Revision: https://reviews.llvm.org/D67132
llvm-svn: 372938
Mitch Phillips [Thu, 26 Sep 2019 00:54:30 +0000 (00:54 +0000)]
[libFuzzer] [NFC] Fix grammar error with "it's"
llvm-svn: 372937
Yitzhak Mandelbaum [Thu, 26 Sep 2019 00:53:56 +0000 (00:53 +0000)]
[libTooling] Add `run` combinator to Stencils.
Summary:
This revision adds `run`, a StencilPart that runs a user-defined function that
computes a result over `MatchFinder::MatchResult`.
Reviewers: gribozavr
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67969
llvm-svn: 372936
Thomas Raoux [Thu, 26 Sep 2019 00:16:01 +0000 (00:16 +0000)]
[TargetLowering] Make allowsMemoryAccess methode virtual.
Rename old function to explicitly show that it cares only about alignment.
The new allowsMemoryAccess call the function related to alignment by default
and can be overridden by target to inform whether the memory access is legal or
not.
Differential Revision: https://reviews.llvm.org/D67121
llvm-svn: 372935
Sam Clegg [Wed, 25 Sep 2019 23:33:16 +0000 (23:33 +0000)]
[MC][WebAssembly] Error on data symbols in the text section.
Previously we had an assert but this can actually occur in valid user
code so we need to handle this in release builds too.
Differential Revision: https://reviews.llvm.org/D67997
llvm-svn: 372934
Craig Topper [Wed, 25 Sep 2019 23:25:15 +0000 (23:25 +0000)]
[X86] Use VR512_0_15RegClass intead of VR512RegClass in X86VZeroUpper.
This pass is only concerned with ZMM0-15 and YMM0-15. For YMM
we use VR256 which only contains YMM0-15, but for ZMM we were
using VR512 which contains ZMM0-31. Using VR512_0_15 is more
correct.
Given that the ABI and register allocator will use registers in
order, its unlikely that register from 16-31 would be used
without also using 0-15. So this probably doesn't functionally
matter.
llvm-svn: 372933
Alina Sbirlea [Wed, 25 Sep 2019 23:24:39 +0000 (23:24 +0000)]
[MemorySSA] Avoid adding Phis in the presence of unreachable blocks.
Summary:
If a block has all incoming values with the same MemoryAccess (ignoring
incoming values from unreachable blocks), then use that incoming
MemoryAccess and do not create a Phi in the first place.
Revert IDF work-around added in rL372673; it should not be required unless
the Def inserted is the first in its block.
The patch also cleans up a series of tests, added during the many
iterations on insertDef.
The patch also fixes PR43438.
The same issue that occurs in insertDef with "adding phis, hence the IDF of
Phis is needed", can also occur in fixupDefs: the `getPreviousRecursive`
call only adds Phis walking on the predecessor edges, which means there
may be the case of a Phi added walking the CFG "backwards" which
triggers the needs for an additional Phi in successor blocks.
Such Phis are added during fixupDefs only in the presence of unreachable
blocks.
Hence this highlights the need to avoid adding Phis in blocks with
unreachable predecessors in the first place.
Reviewers: george.burgess.iv
Subscribers: Prazek, sanjoy.google, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67995
llvm-svn: 372932
Roman Lebedev [Wed, 25 Sep 2019 22:59:59 +0000 (22:59 +0000)]
[InstCombine] foldUnsignedUnderflowCheck(): one last pattern with 'sub' (PR43251)
https://rise4fun.com/Alive/0j9
llvm-svn: 372930
Roman Lebedev [Wed, 25 Sep 2019 22:59:48 +0000 (22:59 +0000)]
[NFC][InstCombine] Tests for 'base u<= offset && (base - offset) != 0' pattern (PR43251)
llvm-svn: 372929
Roman Lebedev [Wed, 25 Sep 2019 22:59:41 +0000 (22:59 +0000)]
[InstSimplify] Handle more 'A </>/>=/<= B &&/|| (A - B) !=/== 0' patterns (PR43251)
https://rise4fun.com/Alive/sl9s
https://rise4fun.com/Alive/2plN
https://bugs.llvm.org/show_bug.cgi?id=43251
llvm-svn: 372928
Roman Lebedev [Wed, 25 Sep 2019 22:59:24 +0000 (22:59 +0000)]
[NFC][InstSimplify] More exaustive test coverage for 'A </>/>=/<= B &&/|| (A - B) !=/== 0' pattern (PR43251)
llvm-svn: 372927
Reid Kleckner [Wed, 25 Sep 2019 22:50:50 +0000 (22:50 +0000)]
Simplify -fms-compatibility include lookup logic, NFC
This include search logic has an extra parameter to deal with Windows
includes with backslashes, which get normalized to forward slashes on
non-Windows under -fms-compatibility.
Hoist the conditional operator out of LookupHeaderIncludeOrImport and
pass the result in instead of repeating the ?: expression everywhere.
llvm-svn: 372926
Evgeniy Stepanov [Wed, 25 Sep 2019 22:38:20 +0000 (22:38 +0000)]
Fix memory leak in DeclTest.
Fixes a leak introduced in r372903, detected on the ASan bot.
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/35430/steps/check-clang%20asan/logs/stdio
Direct leak of 192 byte(s) in 1 object(s) allocated from:
#0 0x561d88 in operator new(unsigned long) /b/sanitizer-x86_64-linux-fast/build/llvm-project/compiler-rt/lib/asan/asan_new_delete.cc:105
#1 0x1a48779 in clang::ItaniumMangleContext::create(clang::ASTContext&, clang::DiagnosticsEngine&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/AST/ItaniumMangle.cpp:5134:10
#2 0xdff000 in Decl_AsmLabelAttr_Test::TestBody() /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/unittests/AST/DeclTest.cpp:97:23
llvm-svn: 372925
Eli Friedman [Wed, 25 Sep 2019 22:35:47 +0000 (22:35 +0000)]
[LICM] Don't verify domtree/loopinfo unless EXPENSIVE_CHECKS is enabled.
For large functions, verifying the whole function after each loop takes
non-linear time.
Differential Revision: https://reviews.llvm.org/D67571
llvm-svn: 372924
Nick Desaulniers [Wed, 25 Sep 2019 22:28:27 +0000 (22:28 +0000)]
[Verifier] add invariant check for callbr
Summary:
The list of indirect labels should ALWAYS have their blockaddresses as
argument operands to the callbr (but not necessarily the other way
around). Add an invariant that checks this.
The verifier catches a bad test case that was added recently in r368478.
I think that was a simple mistake, and the test was made less strict in
regards to the precise addresses (as those weren't specifically the
point of the test).
This invariant will be used to find a reported bug.
Link: https://www.spinics.net/lists/arm-kernel/msg753473.html
Link: https://github.com/ClangBuiltLinux/linux/issues/649
Reviewers: craig.topper, void, chandlerc
Reviewed By: void
Subscribers: ychen, lebedev.ri, javed.absar, kristof.beyls, hiraditya, llvm-commits, srhines
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67196
llvm-svn: 372923
Adhemerval Zanella [Wed, 25 Sep 2019 21:46:24 +0000 (21:46 +0000)]
[libcxxabi] Fix arm build failer with libgcc
Both arm32 armv7/armv8 bots which do not use compiler-rt are failing
to a linking issue:
[100%] Built target cxxabi_static
CMakeFiles/cxxabi_shared.dir/cxa_demangle.cpp.o: In function `(anonymous namespace)::itanium_demangle::OutputStream::writeUnsigned(unsigned long long, bool)':
/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-armv7-linux-noexceptions/llvm/projects/libcxxabi/src/demangle/Utility.h:55: undefined reference to `__aeabi_uldivmod'
/home/buildslave/buildslave/libcxx-libcxxabi-libunwind-armv7-linux-noexceptions/llvm/projects/libcxxabi/src/demangle/Utility.h:56: undefined reference to `__aeabi_uldivmod'
clang-6.0: error: linker command failed with exit code 1 (use -v to see invocation)
It seems after r371273 OutputStream is used more extensively and
is pulling OutputStream::writeUnsigned (which thus requires unsigned
integer module).
The straightfoward fix is to explicit link against libgcc if
compiler-rt is not used.
llvm-svn: 372921
Jonas Devlieghere [Wed, 25 Sep 2019 20:59:56 +0000 (20:59 +0000)]
[Dwarf] Fix switch cases that take an dw_tag_t.
Now that dw_tag_t is an enum, a default case is required.
llvm-svn: 372920
Paul Hoad [Wed, 25 Sep 2019 20:33:01 +0000 (20:33 +0000)]
[clang-format] Modified SortIncludes and IncludeCategories to priority for sorting #includes within the Group Category.
Summary:
This new Style rule is made as a part of adding support for NetBSD KNF in clang-format. NetBSD have it's own priority of includes which should be followed while formatting NetBSD code. This style sorts the Cpp Includes according to the priorities of NetBSD, as mentioned in the [Style Guide](http://cvsweb.netbsd.org/bsdweb.cgi/src/share/misc/style?rev=HEAD&content-type=text/x-cvsweb-markup)
The working of this Style rule shown below:
**Configuration:**
This revision introduces a new field under IncludeCategories named `SortPriority` which defines the priority of ordering the `#includes` and the `Priority` will define the categories for grouping the `#include blocks`.
Reviewers: cfe-commits, mgorny, christos, MyDeveloperDay
Reviewed By: MyDeveloperDay
Subscribers: lebedev.ri, rdwampler, christos, mgorny, krytarowski
Patch By: Manikishan
Tags: #clang, #clang-format
Differential Revision: https://reviews.llvm.org/D64695
llvm-svn: 372919
Yitzhak Mandelbaum [Wed, 25 Sep 2019 20:04:25 +0000 (20:04 +0000)]
[libTooling][NFC] Switch StencilTest.cpp to use EXPECT_THAT_EXPECTED
Summary:
Currently, some tests use homegrown matchers to handle `llvm::Expected`
values. This revision standardizes on EXPECT_THAT_EXPECTED and `HasValue`.
Reviewers: ilya-biryukov
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67973
llvm-svn: 372918
Alexey Bataev [Wed, 25 Sep 2019 19:43:37 +0000 (19:43 +0000)]
[OPENMP50]Parsing/sema support for 'implementation/vendor' context
selector.
Added basic parsing/semantic support for
'implementation={vendor(<vendor>)}' context selector.
llvm-svn: 372917
Louis Dionne [Wed, 25 Sep 2019 19:40:48 +0000 (19:40 +0000)]
[libc++] Purge mentions of GCC 4 from the test suite
We don't support GCC 4 and older according to the documentation, so
we should pretend it doesn't exist.
This is a re-application of r372787.
llvm-svn: 372916
Florian Hahn [Wed, 25 Sep 2019 19:33:26 +0000 (19:33 +0000)]
[InstSimplify] Match 1.0 and 0.0 for both operands in SimplifyFMAMul
Because we do not constant fold multiplications in SimplifyFMAMul,
we match 1.0 and 0.0 for both operands, as multiplying by them
is guaranteed to produce an exact result (if it is allowed to do so).
Note that it is not enough to just swap the operands to ensure a
constant is on the RHS, as we want to also cover the case with
2 constants.
Reviewers: lebedev.ri, spatel, reames, scanon
Reviewed By: lebedev.ri, reames
Differential Revision: https://reviews.llvm.org/D67553
llvm-svn: 372915
Jonas Devlieghere [Wed, 25 Sep 2019 19:31:54 +0000 (19:31 +0000)]
[lit] Do a better job at parsing unsupported tests.
When all the tests run by dotest are unsupported, it still reports
RESULT: PASSED which we translate to success for lit. We can better
report the status as unsupported when we see that there are unsupported
tests but no passing tests. This will not affect the situation where
there are failures or unexpected passes, because those report a non-zero
exit code.
Differential revision: https://reviews.llvm.org/D68039
llvm-svn: 372914
Roman Lebedev [Wed, 25 Sep 2019 19:06:40 +0000 (19:06 +0000)]
[InstCombine] Fold (A - B) u>=/u< A --> B u>/u<= A iff B != 0
https://rise4fun.com/Alive/KtL
This also shows that the fold added in D67412 / r372257
was too specific, and the new fold allows those test cases
to be handled more generically, therefore i delete now-dead code.
This is yet again motivated by
D67122 "[UBSan][clang][compiler-rt] Applying non-zero offset to nullptr is undefined behaviour"
llvm-svn: 372912
Roman Lebedev [Wed, 25 Sep 2019 19:06:26 +0000 (19:06 +0000)]
[NFC][InstCombine] Add tests for (X - Y) < X --> Y <= X iff Y != 0
https://rise4fun.com/Alive/KtL
This should go to InstCombiner::foldICmpBinO(), next to
"Convert sub-with-unsigned-overflow comparisons into a comparison of args."
llvm-svn: 372911
Vadzim Dambrouski [Wed, 25 Sep 2019 18:58:07 +0000 (18:58 +0000)]
[MSP430] Allow msp430_intrcc functions to not have interrupt attribute.
Summary:
Useful in case you want to have control over interrupt vector generation.
For example in Rust language we have an arrangement where all unhandled
ISR vectors gets mapped to a single default handler function. Which is
hard to implement when LLVM tries to generate vectors on its own.
Reviewers: asl, krisb
Subscribers: hiraditya, JDevlieghere, awygle, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67313
llvm-svn: 372910
Eric Fiselier [Wed, 25 Sep 2019 18:56:54 +0000 (18:56 +0000)]
Add forward declaration of operator<< in <string_view> as required.
This declaration was previously missing despite appearing in the
synopsis. Users are still required to include <ostream> to get the
definition of the streaming operator.
llvm-svn: 372909
Stanislav Mekhanoshin [Wed, 25 Sep 2019 18:50:34 +0000 (18:50 +0000)]
[AMDGPU] Improve fma.f64 test. NFC.
llvm-svn: 372908
Eric Fiselier [Wed, 25 Sep 2019 18:43:40 +0000 (18:43 +0000)]
add tests that debug mode catches nullptr->string_view conversions in comparison operators
llvm-svn: 372907
Stanislav Mekhanoshin [Wed, 25 Sep 2019 18:40:20 +0000 (18:40 +0000)]
[AMDGPU] gfx10 v_fmac_f16 operand folding
Fold immediates into v_fmac_f16.
Differential Revision: https://reviews.llvm.org/D68037
llvm-svn: 372906
Haibo Huang [Wed, 25 Sep 2019 18:17:45 +0000 (18:17 +0000)]
[lldb] Excludes private headers from SWIG dependency.
Reviewers: xiaobai
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68040
llvm-svn: 372905
Bob Haarman [Wed, 25 Sep 2019 18:16:02 +0000 (18:16 +0000)]
[emacs] simplify and improve keyword highlighting in tablegen-mode.el
Summary:
The keyword and type keyword matchers in tablegen-mode.el checked
for space, newline, tab, or open paren after the regular expression
that matches keywords (or type keywords, respectively). This is
unnecessary, because those regular expressions already include word
boundaries. This change removes the extra check. This also causes
"def" in "def:" to be highlighted as a keyword, which was missed
before.
Reviewers: lattner, MaskRay
Reviewed By: MaskRay
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68002
llvm-svn: 372904
Vedant Kumar [Wed, 25 Sep 2019 18:00:31 +0000 (18:00 +0000)]
[Mangle] Add flag to asm labels to disable '\01' prefixing
LLDB synthesizes decls using asm labels. These decls cannot have a mangle
different than the one specified in the label name. I.e., the '\01' prefix
should not be added.
Fixes an expression evaluation failure in lldb's TestVirtual.py on iOS.
rdar://
45827323
Differential Revision: https://reviews.llvm.org/D67774
llvm-svn: 372903
Huihui Zhang [Wed, 25 Sep 2019 17:32:20 +0000 (17:32 +0000)]
[NFC] Add { } to silence compiler warning [-Wmissing-braces].
llvm-project/llvm/unittests/ADT/ArrayRefTest.cpp:254:25: warning: suggest braces around initialization of subobject [-Wmissing-braces]
std::array<int, 5> A1{42, -5, 0, 1000000, -1000000};
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
{ }
llvm-svn: 372902
Jonas Devlieghere [Wed, 25 Sep 2019 17:13:02 +0000 (17:13 +0000)]
[CMake] Add the system debugserver to lldb-test-deps.
When using the system debugserver we create a target to copy it over.
This target has to be added to lldb-test-deps.
llvm-svn: 372901
Jonas Devlieghere [Wed, 25 Sep 2019 17:12:59 +0000 (17:12 +0000)]
[CMake] Run the lldb-server tests with system debugserver.
Now that we no longer build debugserver when LLDB_USE_SYSTEM_DEBUGSERVER
is set, we have to change the logic for testing lldb-server.
llvm-svn: 372900
Florian Hahn [Wed, 25 Sep 2019 17:03:20 +0000 (17:03 +0000)]
[InstCombine] Limit FMul constant folding for fma simplifications.
As @reames pointed out post-commit, rL371518 adds additional rounding
in some cases, when doing constant folding of the multiplication.
This breaks a guarantee llvm.fma makes and must be avoided.
This patch reapplies rL371518, but splits off the simplifications not
requiring rounding from SimplifFMulInst as SimplifyFMAFMul.
Reviewers: spatel, lebedev.ri, reames, scanon
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D67434
llvm-svn: 372899
Michael Liao [Wed, 25 Sep 2019 16:51:45 +0000 (16:51 +0000)]
[CUDA][HIP] Enable kernel function return type deduction.
Summary:
- Even though only `void` is still accepted as the deduced return type,
enabling deduction/instantiation on the return type allows more
consistent coding.
Reviewers: tra, jlebar
Subscribers: cfe-commits, yaxunl
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68031
llvm-svn: 372898
Jessica Paquette [Wed, 25 Sep 2019 16:45:35 +0000 (16:45 +0000)]
[AArch64][GlobalISel] Choose CCAssignFns per-argument for tail call lowering
When checking for tail call eligibility, we should use the correct CCAssignFn
for each argument, rather than just checking if the caller/callee is varargs or
not.
This is important for tail call lowering with varargs. If we don't check it,
then basically any varargs callee with parameters cannot be tail called on
Darwin, for one thing. If the parameters are all guaranteed to be in registers,
this should be entirely safe.
On top of that, not checking for this could potentially make it so that we have
the wrong stack offsets when checking for tail call eligibility.
Also refactor some of the stuff for CCAssignFnForCall and pull it out into a
helper function.
Update call-translator-tail-call.ll to show that we can now correctly tail call
on Darwin. Also add two extra tail call checks. The first verifies that we still
respect the caller's stack size, and the second verifies that we still don't
tail call when a varargs function has a memory argument.
Differential Revision: https://reviews.llvm.org/D67939
llvm-svn: 372897
Marshall Clow [Wed, 25 Sep 2019 16:40:30 +0000 (16:40 +0000)]
Add a missing default parameter to regex::assign. This is LWG3296; reviewed as https://reviews.llvm.org/D67944
llvm-svn: 372896
Haibo Huang [Wed, 25 Sep 2019 16:37:11 +0000 (16:37 +0000)]
[lldb] Move swig call from python code to cmake
Summary: Elimiates lots of unused code.
Reviewers: labath, mgorny
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68007
llvm-svn: 372895
Jonas Devlieghere [Wed, 25 Sep 2019 16:14:26 +0000 (16:14 +0000)]
[Docs] Document forwarding arguments with lit
Explain how to forward arguments to dotest.py from lit.
llvm-svn: 372894
Evandro Menezes [Wed, 25 Sep 2019 16:10:20 +0000 (16:10 +0000)]
[CodeGen] Replace -max-jump-table-size with -max-jump-table-targets
Modern processors predict the targets of an indirect branch regardless of
the size of any jump table used to glean its target address. Moreover,
branch predictors typically use resources limited by the number of actual
targets that occur at run time.
This patch changes the semantics of the option `-max-jump-table-size` to limit
the number of different targets instead of the number of entries in a jump
table. Thus, it is now renamed to `-max-jump-table-targets`.
Before, when `-max-jump-table-size` was specified, it could happen that
cluster jump tables could have targets used repeatedly, but each one was
counted and typically resulted in tables with the same number of entries.
With this patch, when specifying `-max-jump-table-targets`, tables may have
different lengths, since the number of unique targets is counted towards the
limit, but the number of unique targets in tables is the same, but for the
last one containing the balance of targets.
Differential revision: https://reviews.llvm.org/D60295
llvm-svn: 372893
Florian Hahn [Wed, 25 Sep 2019 16:09:24 +0000 (16:09 +0000)]
[LangRef] Clarify absence of rounding guarantees for fmuladd.
During the review of D67434, it was recommended to make fmuladd's
behavior more explicit. D67434 depends on this interpretation.
Reviewers: efriedma, jfb, reames, scanon, lebedev.ri, spatel
Reviewed By: spatel
Differential Revision: https://reviews.llvm.org/D67552
llvm-svn: 372892
Jonas Devlieghere [Wed, 25 Sep 2019 16:04:38 +0000 (16:04 +0000)]
[Dwarf] Make dw_tag_t a typedef for llvm::dwarf::Tag instead of uint16_t.
Currently dw_tag_t is a typedef for uint16_t. This patch changes makes
dw_tag_t a typedef for llvm::dwarf::Tag. This enables us to use the full
power of the DWARF utilities in LLVM without having to do the cast every
time. With this approach, we only have to do the cast when reading the
ULEB value.
Differential revision: https://reviews.llvm.org/D68005
llvm-svn: 372891
Adrian Prantl [Wed, 25 Sep 2019 15:48:30 +0000 (15:48 +0000)]
Modernize Makefile.
llvm-svn: 372890
Ilya Biryukov [Wed, 25 Sep 2019 15:46:04 +0000 (15:46 +0000)]
Re-land r372863: [AST] Extract Decl::printNestedNameSpecifier helper from Decl::printQualifiedName
Reverted in r372880 due to the test failure.
Also contains a fix that adjusts printQualifiedName to return the same results as before in
case of anonymous function locals and parameters.
llvm-svn: 372889
Kadir Cetinkaya [Wed, 25 Sep 2019 15:44:26 +0000 (15:44 +0000)]
[clangd] Change constness of parameters to findExplicitRefs
Summary:
Recursive AST requires non-const ast nodes, but it doesn't really
mutate them. In addition to that, in clangd we mostly have const ast nodes. So
it makes sense to move the const_cast into callee rather than having it at every
caller in the future.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68027
llvm-svn: 372888
Andrey Churbanov [Wed, 25 Sep 2019 15:25:52 +0000 (15:25 +0000)]
fixed test: eliminated race condition which might cause deadlock
llvm-svn: 372887
Sanjay Patel [Wed, 25 Sep 2019 15:08:33 +0000 (15:08 +0000)]
[DAGCombiner] add one-use restriction to vector transform with cheap extract
We might be able to do better on the example in the test,
but in general, we should not scalarize a splatted vector
binop if there are other uses of the binop. Otherwise, we
can end up with code as we had - a scalar op that is
redundant with a vector op.
llvm-svn: 372886
Florian Hahn [Wed, 25 Sep 2019 15:05:08 +0000 (15:05 +0000)]
[PatternMatch] Make m_Br more flexible, add matchers for BB values.
Currently m_Br only takes references to BasicBlock*, which limits its
flexibility. For example, you have to declare a variable, even if you
ignore the result or you have to have additional checks to make sure the
matched BB matches an expected one.
This patch adds m_BasicBlock and m_SpecificBB matchers, which can be
used like the existing matchers for constants or values.
I also had a look at the existing uses and updated a few. IMO it makes
the code a bit more explicit.
Reviewers: spatel, craig.topper, RKSimon, majnemer, lebedev.ri
Reviewed By: lebedev.ri
Differential Revision: https://reviews.llvm.org/D68013
llvm-svn: 372885
Yitzhak Mandelbaum [Wed, 25 Sep 2019 14:58:39 +0000 (14:58 +0000)]
[NFC] Fix typo in `getPreviousDecl` comment.
llvm-svn: 372884
Sanjay Patel [Wed, 25 Sep 2019 14:57:45 +0000 (14:57 +0000)]
[x86] add test for multi-use scalarization of vector binop; NFC
llvm-svn: 372883
Simon Pilgrim [Wed, 25 Sep 2019 14:55:57 +0000 (14:55 +0000)]
[TargetInstrInfo] Let findCommutedOpIndices take const MachineInstr&
Neither the base implementation of findCommutedOpIndices nor any in-tree target modifies the instruction passed in and there is no reason why they would in the future.
Committed on behalf of @hvdijk (Harald van Dijk)
Differential Revision: https://reviews.llvm.org/D66138
llvm-svn: 372882
Florian Hahn [Wed, 25 Sep 2019 14:53:06 +0000 (14:53 +0000)]
[PatternMatch] Generalize brc_match (NFC).
Preparation for D68013.
llvm-svn: 372881
Ilya Biryukov [Wed, 25 Sep 2019 14:50:12 +0000 (14:50 +0000)]
Revert r372863: [AST] Extract Decl::printNestedNameSpecifier helper from Decl::printQualifiedName
Reason: causes a test failure, will investigate and re-land with a fix.
llvm-svn: 372880
Andrey Churbanov [Wed, 25 Sep 2019 14:40:19 +0000 (14:40 +0000)]
Enable tasks dependencies hashmaps resizing.
Patch by viroulep (Philippe Virouleau)
Differential Revision: https://reviews.llvm.org/D67447
llvm-svn: 372879
Sanjay Patel [Wed, 25 Sep 2019 14:35:02 +0000 (14:35 +0000)]
[IR] allow fast-math-flags on phi of FP values (2nd try)
The changes here are based on the corresponding diffs for allowing FMF on 'select':
D61917 <https://reviews.llvm.org/D61917>
As discussed there, we want to have fast-math-flags be a property of an FP value
because the alternative (having them on things like fcmp) leads to logical
inconsistency such as:
https://bugs.llvm.org/show_bug.cgi?id=38086
The earlier patch for select made almost no practical difference because most
unoptimized conditional code begins life as a phi (based on what I see in clang).
Similarly, I don't expect this patch to do much on its own either because
SimplifyCFG promptly drops the flags when converting to select on a minimal
example like:
https://bugs.llvm.org/show_bug.cgi?id=39535
But once we have this plumbing in place, we should be able to wire up the FMF
propagation and start solving cases like that.
The change to RecurrenceDescriptor::AddReductionVar() is required to prevent a
regression in a LoopVectorize test. We are intersecting the FMF of any
FPMathOperator there, so if a phi is not properly annotated, new math
instructions may not be either. Once we fix the propagation in SimplifyCFG, it
may be safe to remove that hack.
Differential Revision: https://reviews.llvm.org/D67564
llvm-svn: 372878
Simon Pilgrim [Wed, 25 Sep 2019 14:23:25 +0000 (14:23 +0000)]
Fix analyzer TypeAttributeImpl::anchor() override.
TypeAttributeImpl inherits from EnumAttributeImpl which already defines anchor() as a virtual, so we should override this instead of redeclaring it.
llvm-svn: 372877
Marco Antognini [Wed, 25 Sep 2019 14:15:34 +0000 (14:15 +0000)]
[gn build] Fix Python DeprecationWarning
Summary:
This fixes two issues:
- DeprecationWarning: invalid escape sequence \`
- ResourceWarning: unclosed file
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67753
llvm-svn: 372876
Kadir Cetinkaya [Wed, 25 Sep 2019 14:12:05 +0000 (14:12 +0000)]
[clangd] Fix parseNamespaceEvents to parse the last token
Reviewers: hokein, ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68020
llvm-svn: 372875
Jakub Kuderski [Wed, 25 Sep 2019 14:04:36 +0000 (14:04 +0000)]
[Dominators][AMDGPU] Don't use virtual exit node in findNearestCommonDominator. Cleanup MachinePostDominators.
Summary:
This patch fixes a bug that originated from passing a virtual exit block (nullptr) to `MachinePostDominatorTee::findNearestCommonDominator` and resulted in assertion failures inside its callee. It also applies a small cleanup to the class.
The patch introduces a new function in PDT that given a list of `MachineBasicBlock`s finds their NCD. The new overload of `findNearestCommonDominator` handles virtual root correctly.
Note that similar handling of virtual root nodes is not necessary in (forward) `DominatorTree`s, as right now they don't use virtual roots.
Reviewers: tstellar, tpr, nhaehnle, arsenm, NutshellySima, grosser, hliao
Reviewed By: hliao
Subscribers: hliao, kzhuravl, jvesely, wdng, yaxunl, dstuttard, t-tye, hiraditya, llvm-commits
Tags: #amdgpu, #llvm
Differential Revision: https://reviews.llvm.org/D67974
llvm-svn: 372874
Jonas Paulsson [Wed, 25 Sep 2019 14:00:33 +0000 (14:00 +0000)]
[SystemZ] Improve emitSelect()
Merge more Select pseudo instructions in emitSelect() by allowing other
instructions between them as long as they do not clobber CC.
Debug value instructions are now moved down to below the new PHIs instead of
erasing them.
Review: Ulrich Weigand
https://reviews.llvm.org/D67619
llvm-svn: 372873
Simon Pilgrim [Wed, 25 Sep 2019 13:45:36 +0000 (13:45 +0000)]
Fix cppcheck variable shadow warning. NFCI.
llvm-svn: 372872
Simon Pilgrim [Wed, 25 Sep 2019 13:38:54 +0000 (13:38 +0000)]
Add missing ExplicitTy default initialization to ConstantExprKeyType constructors.
Fixes cppcheck uninitialized variable warnings
llvm-svn: 372871
Yitzhak Mandelbaum [Wed, 25 Sep 2019 13:34:04 +0000 (13:34 +0000)]
[libTooling] Introduce the MatchConsumer abstraction
Summary:
This revision introduces a separate (small) library for the `MatchConsumer`
abstraction: computations over AST match results. This abstraction is central
to the Transformer framework, and there deserves being defined explicitly.
Reviewers: gribozavr
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67961
llvm-svn: 372870
Raphael Isemann [Wed, 25 Sep 2019 13:33:50 +0000 (13:33 +0000)]
[lldb][modern-type-lookup] Add two basic tests for modern-type-lookup
The story so far: LLDB's modern type lookup mode has no (as in, 0%) test
coverage. It was supposed to be tested by hardcoding the default to 'true' and then running
the normal LLDB tests, but to my knowledge no one is doing that. As a around 130 tests
seem to fail with this mode enabled, we also can't just enable it globally for now.
As we touch the surrounding code all the time and also want to refactor parts of it, we
should be a bit more ambitious with our testing efforts.
So this patch adds two basic tests that enable this mode and do some
basic expression parsing which should hopefully be basic enough to not
break anywhere but still lets us know if this mode works at all (i.e. setting up the
ExternalASTMerger in LLDB, using its basic import functionality to move declarations
around and do some lookups).
llvm-svn: 372869
Sanjay Patel [Wed, 25 Sep 2019 13:29:09 +0000 (13:29 +0000)]
Revert [IR] allow fast-math-flags on phi of FP values
This reverts r372866 (git commit
dec03223a97af0e4dfcb23da55c0f7f8c9b62d00)
llvm-svn: 372868
George Rimar [Wed, 25 Sep 2019 13:16:43 +0000 (13:16 +0000)]
[llvm-readobj/llvm-readelf] - .stack_sizes: demangle symbol names in warnings reported.
I started this patch as a refactoring, tried to make a helper for
getting symbol names, similar to how we get section names
used in warning messages.
So this patch cleanups the code and fixes an issue: symbol names
in warning messages were not demangled.
Differential revision: https://reviews.llvm.org/D68012
llvm-svn: 372867
Sanjay Patel [Wed, 25 Sep 2019 13:14:12 +0000 (13:14 +0000)]
[IR] allow fast-math-flags on phi of FP values
The changes here are based on the corresponding diffs for allowing FMF on 'select':
D61917
As discussed there, we want to have fast-math-flags be a property of an FP value
because the alternative (having them on things like fcmp) leads to logical
inconsistency such as:
https://bugs.llvm.org/show_bug.cgi?id=38086
The earlier patch for select made almost no practical difference because most
unoptimized conditional code begins life as a phi (based on what I see in clang).
Similarly, I don't expect this patch to do much on its own either because
SimplifyCFG promptly drops the flags when converting to select on a minimal
example like:
https://bugs.llvm.org/show_bug.cgi?id=39535
But once we have this plumbing in place, we should be able to wire up the FMF
propagation and start solving cases like that.
The change to RecurrenceDescriptor::AddReductionVar() is required to prevent a
regression in a LoopVectorize test. We are intersecting the FMF of any
FPMathOperator there, so if a phi is not properly annotated, new math
instructions may not be either. Once we fix the propagation in SimplifyCFG, it
may be safe to remove that hack.
Differential Revision: https://reviews.llvm.org/D67564
llvm-svn: 372866
James Henderson [Wed, 25 Sep 2019 13:09:17 +0000 (13:09 +0000)]
[docs][llvm-strings] Clarify "printable character" wording
The --bytes option uses the phrase "printable ASCII characters", but the
description section used simply "printable characters". To avoid any
confusion about locale impacts etc, this change adopts the former's
phrasing in both places. It also fixes a minor grammar issue in the
description.
Reviewed by: MaskRay
Differential Revision: https://reviews.llvm.org/D68016
llvm-svn: 372865