Sylvestre Ledru [Wed, 4 Apr 2018 09:38:22 +0000 (09:38 +0000)]
As we don't use minor version anymore, let's remove it from the release notes too
llvm-svn: 329161
Sam Parker [Wed, 4 Apr 2018 09:26:56 +0000 (09:26 +0000)]
[DAGCombine] Improve ReduceLoadWidth for SRL
Recommitting rL321259. Previosuly this caused an issue with PPCBE but
I didn't receieve a reproducer and didn't have the time to follow up.
If the issue appears again, please provide a reproducer so I can fix
it.
Original commit message:
If the SRL node is only used by an AND, we may be able to set the
ExtVT to the width of the mask, making the AND redundant. To support
this, another check has been added in isLegalNarrowLoad which queries
whether the load is valid.
Differential Revision: https://reviews.llvm.org/D41350
llvm-svn: 329160
George Rimar [Wed, 4 Apr 2018 09:24:31 +0000 (09:24 +0000)]
[ELF] - Rename checkSectionOverlap() to checkSections(). NFC.
Renaming was requested in post commit review for D43820.
llvm-svn: 329159
Mikhail Maltsev [Wed, 4 Apr 2018 08:54:19 +0000 (08:54 +0000)]
[ARM] Do not convert some vmov instructions
Summary:
Patch https://reviews.llvm.org/D44467 implements conversion of invalid
vmov instructions into valid ones. It turned out that some valid
instructions also get converted, for example
vmov.i64 d2, #0xff00ff00ff00ff00 ->
vmov.i16 d2, #0xff00
Such behavior is incorrect because according to the ARM ARM section
F2.7.7 Modified immediate constants in T32 and A32 Advanced SIMD
instructions, "On assembly, the data type must be matched in the table
if possible."
This patch fixes the isNEONmovReplicate check so that the above
instruction is not modified any more.
Reviewers: rengolin, olista01
Reviewed By: rengolin
Subscribers: javed.absar, kristof.beyls, rogfer01, llvm-commits
Differential Revision: https://reviews.llvm.org/D44678
llvm-svn: 329158
Clement Courbet [Wed, 4 Apr 2018 08:22:54 +0000 (08:22 +0000)]
Revert r329156 "Add llvm-exegesis tool."
Breaks a bunch of bots.
llvm-svn: 329157
Clement Courbet [Wed, 4 Apr 2018 08:13:32 +0000 (08:13 +0000)]
Add llvm-exegesis tool.
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops
This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops".
The RFC is available on the LLVM mailing lists as well as the following document
for easier reading:
https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing
Subscribers: mgorny, gchatelet, orwant, llvm-commits
Differential Revision: https://reviews.llvm.org/D44519
llvm-svn: 329156
George Rimar [Wed, 4 Apr 2018 08:13:28 +0000 (08:13 +0000)]
[ELF] - Revert r329060 "Simplify createFiles. NFCI."
Was requested during post commit review.
llvm-svn: 329155
Craig Topper [Wed, 4 Apr 2018 07:00:24 +0000 (07:00 +0000)]
[X86] Use the same predicate for the load for PMOVSXBQ and PMOVZXBQ.
These both use a 16-bit load, but one used loadi16_anyext and the other used extloadi32i16. The only difference between them is that loadi16_anyext checked that the load was at least 2 byte aligned and non-volatile. But the alignment doesn't matter here. Just use extloadi32i16 for both.
llvm-svn: 329154
Craig Topper [Wed, 4 Apr 2018 07:00:19 +0000 (07:00 +0000)]
[X86] Use loadi16/loadi32 predicates in multiply patterns
llvm-svn: 329153
Craig Topper [Wed, 4 Apr 2018 07:00:16 +0000 (07:00 +0000)]
[X86] Remove more dead code left over from the handling of i8/i16 UMUL_LOHI/SMUL_LOHI that is no longer needed. NFC
llvm-svn: 329152
Eric Fiselier [Wed, 4 Apr 2018 06:31:21 +0000 (06:31 +0000)]
Fix typo in ASTStructuralEquivalence.cpp for UnaryTransform types.
Previously UnaryTransformType nodes were comparing the same node
for structural equivalence. This was due to a typo where T1 was
on both sides of the comparison. This patch corrects that typo.
Unfortunately I couldn't find a way to test this change. It seems
that currently UnaryTransform nodes are never actually checked
for equivalence, only their canonical types are.
None the less, this correction seemed appropriate.
llvm-svn: 329151
Max Kazantsev [Wed, 4 Apr 2018 05:46:47 +0000 (05:46 +0000)]
[SCEV] Prove implications for SCEVUnknown Phis
This patch teaches SCEV how to prove implications for SCEVUnknown nodes that are Phis.
If we need to prove `Pred` for `LHS, RHS`, and `LHS` is a Phi with possible incoming values
`L1, L2, ..., LN`, then if we prove `Pred` for `(L1, RHS), (L2, RHS), ..., (LN, RHS)` then we can also
prove it for `(LHS, RHS)`. If both `LHS` and `RHS` are Phis from the same block, it is sufficient
to prove the predicate for values that come from the same predecessor block.
The typical case that it handles is that we sometimes need to prove that `Phi(Len, Len - 1) >= 0`
given that `Len > 0`. The new logic was added to `isImpliedViaOperations` and only uses it and
non-recursive reasoning to prove the facts we need, so it should not hurt compile time a lot.
Differential Revision: https://reviews.llvm.org/D44001
Reviewed By: anna
llvm-svn: 329150
Eric Fiselier [Wed, 4 Apr 2018 04:48:26 +0000 (04:48 +0000)]
Fix undefined macro issue in locale tests; Try 2
llvm-svn: 329149
Eric Fiselier [Wed, 4 Apr 2018 04:39:38 +0000 (04:39 +0000)]
Fix undefined macro issue in locale tests
llvm-svn: 329148
Craig Topper [Wed, 4 Apr 2018 04:38:55 +0000 (04:38 +0000)]
[X86] Remove dead code for handling i8/i16 UMUL_LOHI/SMUL_LOHI from X86ISelDAGToDAG.cpp. NFC
These are promoted to i16/i32 multiplies by a DAG combine.
llvm-svn: 329147
Craig Topper [Wed, 4 Apr 2018 04:38:54 +0000 (04:38 +0000)]
[X86] Remove some code that was only needed when i1 was a legal type. NFC
llvm-svn: 329146
Eric Fiselier [Wed, 4 Apr 2018 04:33:09 +0000 (04:33 +0000)]
Update Clang version on Appveyor bots
llvm-svn: 329145
Eric Fiselier [Wed, 4 Apr 2018 04:21:54 +0000 (04:21 +0000)]
Touch up tests for new <version> header; fix module.modulemap.
This patch does some housekeeping for the new <version> header.
It adds it to the module.modulemap, and the double_include.sh.cpp test.
Additionally it corrects the // UNSUPPORTED options for the libc++
specific test. The header needs to compile under C++03 to support
modules, and it should compile under all available compilers.
llvm-svn: 329144
Eric Fiselier [Wed, 4 Apr 2018 04:00:14 +0000 (04:00 +0000)]
Fix locale test data for GLIBC 2.27 and newer.
GLIBC 2.27 changed the locale data for fr_FR and ru_RU. In particular
they change the decimal and thousands separators used. This patch
makes the locale tests tolerate the updated locales.
llvm-svn: 329143
Craig Topper [Wed, 4 Apr 2018 03:47:17 +0000 (03:47 +0000)]
[SimplifyCFG] Teach merge conditional stores to handle cases where the PostBB has more than 2 predecessors by inserting a new block for the store.
Summary:
Currently merge conditional stores can't handle cases where PostBB (the block we need to move the store to) has more than 2 predecessors.
This patch removes that restriction by creating a new block with only the 2 predecessors we care about and an unconditional branch to the original block. This provides a place to put the store.
Reviewers: efriedma, jmolloy, ABataev
Reviewed By: efriedma
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39760
llvm-svn: 329142
Alex Lorenz [Wed, 4 Apr 2018 02:11:20 +0000 (02:11 +0000)]
Split test/Driver/darwin-sdkroot.c into two tests
The test additions in r329110 are Darwin-specific, as they rely
on a code path that is reachabled when driver is invoked without
-target. Instead of making the old test checks Darwin-specific too,
let's simply split it into two files to ensure that the old
checks are still platform-agnostic. Thanks Chandler for
suggesting this!
llvm-svn: 329141
Vlad Tsyrklevich [Wed, 4 Apr 2018 01:34:42 +0000 (01:34 +0000)]
Fix bad #include path in r329139
llvm-svn: 329140
Vlad Tsyrklevich [Wed, 4 Apr 2018 01:21:16 +0000 (01:21 +0000)]
Add the ShadowCallStack pass
Summary:
The ShadowCallStack pass instruments functions marked with the
shadowcallstack attribute. The instrumented prolog saves the return
address to [gs:offset] where offset is stored and updated in [gs:0].
The instrumented epilog loads/updates the return address from [gs:0]
and checks that it matches the return address on the stack before
returning.
Reviewers: pcc, vitalybuka
Reviewed By: pcc
Subscribers: cryptoad, eugenis, craig.topper, mgorny, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D44802
llvm-svn: 329139
Nico Weber [Wed, 4 Apr 2018 00:50:22 +0000 (00:50 +0000)]
Minor no-op cmake file style fix.
llvm-svn: 329137
Lang Hames [Wed, 4 Apr 2018 00:34:54 +0000 (00:34 +0000)]
Reapply r329133 with fix.
llvm-svn: 329136
Lang Hames [Wed, 4 Apr 2018 00:12:12 +0000 (00:12 +0000)]
Revert r329133 "[RuntimeDyld][AArch64] Add some error pluming / generation..."
This broke a number of buildbots. Looking in to it now...
llvm-svn: 329135
Jessica Paquette [Tue, 3 Apr 2018 23:32:41 +0000 (23:32 +0000)]
[MachineOutliner] Test for X86FI->getUsesRedZone() as well as Attribute::NoRedZone
This commit is similar to r329120, but uses the existing getUsesRedZone() function
in X86MachineFunctionInfo. This teaches the outliner to look at whether or not a
function *truly* uses a redzone instead of just the noredzone attribute on a
function.
Thus, after this commit, it's possible to outline from x86 without using
-mno-red-zone and still get outlining results.
This also adds a new test for the new redzone behaviour.
llvm-svn: 329134
Lang Hames [Tue, 3 Apr 2018 23:19:20 +0000 (23:19 +0000)]
[RuntimeDyld][AArch64] Add some error pluming / generation to catch unhandled
relocation types on AArch64.
llvm-svn: 329133
Rui Ueyama [Tue, 3 Apr 2018 23:12:28 +0000 (23:12 +0000)]
Fix manifestinput-error.test on Windows 10.
Patch by Alexandre Ganea.
Differential Revision: https://reviews.llvm.org/D45232
llvm-svn: 329132
Farhana Aleen [Tue, 3 Apr 2018 23:00:30 +0000 (23:00 +0000)]
[AMDGPU] performMinMaxCombine should not optimize patterns of vectors to min3/max3.
Summary: There are no packed instructions for min3 or max3. So, performMinMaxCombine should not optimize vectors of f16 to min3/max3.
Author: FarhanaAleen
Reviewed By: arsenm
Subscribers: llvm-commits, AMDGPU
Differential Revision: https://reviews.llvm.org/D45219
llvm-svn: 329131
Evandro Menezes [Tue, 3 Apr 2018 22:57:17 +0000 (22:57 +0000)]
[AArch64] Adjust the cost model for Exynos M3
Fix typo and simplify matching expression.
llvm-svn: 329130
Ikhlas Ajbar [Tue, 3 Apr 2018 22:55:09 +0000 (22:55 +0000)]
[Hexagon] peel loops with runtime small trip counts
Move the check canPeel() to Hexagon Target before setting PeelCount.
Differential Revision: https://reviews.llvm.org/D44880
llvm-svn: 329129
Akira Hatanaka [Tue, 3 Apr 2018 22:50:16 +0000 (22:50 +0000)]
[ObjC] Use the name specified by objc_runtime_name instead of the class
identifier.
This patch fixes a few places in CGObjCMac.cpp where the class
identifier was used instead of the name specified by objc_runtime_name.
rdar://problem/
37910822
Differential Revision: https://reviews.llvm.org/D45101
llvm-svn: 329128
Artem Belevich [Tue, 3 Apr 2018 22:41:06 +0000 (22:41 +0000)]
[CUDA] Check initializers of instantiated template variables.
We were already performing checks on non-template variables,
but the checks on templated ones were missing.
Differential Revision: https://reviews.llvm.org/D45231
llvm-svn: 329127
Rui Ueyama [Tue, 3 Apr 2018 22:39:12 +0000 (22:39 +0000)]
Return early. NFC.
llvm-svn: 329126
Rui Ueyama [Tue, 3 Apr 2018 22:39:04 +0000 (22:39 +0000)]
Merge two `if`s and add a few blank lines. NFC.
llvm-svn: 329125
Rui Ueyama [Tue, 3 Apr 2018 22:38:56 +0000 (22:38 +0000)]
Inline a small test file.
llvm-svn: 329124
Reid Kleckner [Tue, 3 Apr 2018 22:38:25 +0000 (22:38 +0000)]
'cat' command for internal shell - Support Python 3
LLVM Bug Id : 36449
Revision 328563 caused tests to fail under python 3.
This patch modified cat.py file to support both python 2 and 3.
This patch also fixes CRLF issues on Windows.
Patch by Chamal de Silva
Differential Revision: https://reviews.llvm.org/D45077
llvm-svn: 329123
Vlad Tsyrklevich [Tue, 3 Apr 2018 22:33:53 +0000 (22:33 +0000)]
Add the -fsanitize=shadow-call-stack flag
Summary:
Add support for the -fsanitize=shadow-call-stack flag which causes clang
to add ShadowCallStack attribute to functions compiled with that flag
enabled.
Reviewers: pcc, kcc
Reviewed By: pcc, kcc
Subscribers: cryptoad, cfe-commits, kcc
Differential Revision: https://reviews.llvm.org/D44801
llvm-svn: 329122
Sanjay Patel [Tue, 3 Apr 2018 22:19:19 +0000 (22:19 +0000)]
[InstCombine] allow more fmul folds with 'reassoc'
The tests marked with 'FIXME' require loosening the check
in SimplifyAssociativeOrCommutative() to optimize completely;
that's still checking isFast() in Instruction::isAssociative().
llvm-svn: 329121
Jessica Paquette [Tue, 3 Apr 2018 21:56:10 +0000 (21:56 +0000)]
[MachineOutliner] Keep track of fns that use a redzone in AArch64FunctionInfo
This patch adds a hasRedZone() function to AArch64MachineFunctionInfo. It
returns true if the function is known to use a redzone, false if it is known
to not use a redzone, and no value otherwise.
This removes the requirement to pass -mno-red-zone when outlining for AArch64.
https://reviews.llvm.org/D45189
llvm-svn: 329120
Farhana Aleen [Tue, 3 Apr 2018 21:51:45 +0000 (21:51 +0000)]
Revert "MSG"
This reverts commit
9a0ce889d1c39c74d69ecad5ce9c875155ae55de.
This was committed by mistake.
llvm-svn: 329119
Vlad Tsyrklevich [Tue, 3 Apr 2018 21:40:27 +0000 (21:40 +0000)]
Fix bad copy-and-paste in r329108
llvm-svn: 329118
Rafael Espindola [Tue, 3 Apr 2018 21:38:18 +0000 (21:38 +0000)]
Inline initOffsetMap.
In the lld perf builder r328686 had a negative impact in
stalled-cycles-frontend. Somehow that stat is not showing on my
machine, but the attached patch shows an improvement on cache-misses,
which is probably a reasonable proxy.
My working theory is that given a large input the pieces vector is out
of cache by the time initOffsetMap runs.
Both finalizeContents implementation have a convenient location for
initializing the OffsetMap, so this seems the best solution.
llvm-svn: 329117
Jessica Paquette [Tue, 3 Apr 2018 21:36:00 +0000 (21:36 +0000)]
[MachineOutliner][NFC] Make outlined functions have internal linkage
The linkage type on outlined functions was private before. This meant that if
you set a breakpoint in an outlined function, the debugger wouldn't be able to
give a sane name to the outlined function.
This commit changes the linkage type to internal and updates any tests that
relied on the prefixes on the names of outlined functions.
llvm-svn: 329116
Eugene Zelenko [Tue, 3 Apr 2018 21:31:50 +0000 (21:31 +0000)]
[StaticAnalyzer] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
llvm-svn: 329115
Farhana Aleen [Tue, 3 Apr 2018 21:20:39 +0000 (21:20 +0000)]
MSG
llvm-svn: 329114
Alex Lorenz [Tue, 3 Apr 2018 21:10:26 +0000 (21:10 +0000)]
Add REQUIRES: darwin-system to test/Driver/darwin-sdkroot.c
The test from r329110 is for Darwin only
llvm-svn: 329113
Gor Nishanov [Tue, 3 Apr 2018 20:54:20 +0000 (20:54 +0000)]
[coroutines] Respect alloca alignment requirements when building coroutine frame
Summary:
If an alloca need to be stored in the coroutine frame and it has an alignment specified and the alignment does not match the natural alignment of the alloca type. Insert appropriate padding into the coroutine frame to make sure that it gets requested alignment.
For example for a packet type (which natural alignment is 1), but alloca alignment is 8, we may need to insert a padding field with required number of bytes to make sure it is properly aligned.
```
%PackedStruct = type <{ i64 }>
...
%data = alloca %PackedStruct, align 8
```
If the previous field in the coroutine frame had alignment 2, we would have [6 x i8] inserted before %PackedStruct in the coroutine frame:
```
%f.Frame = type { ..., i16, [6 x i8], %PackedStruct }
```
Reviewers: rnk, lewissbaker, modocache
Reviewed By: modocache
Subscribers: EricWF, llvm-commits
Differential Revision: https://reviews.llvm.org/D45221
llvm-svn: 329112
Florian Hahn [Tue, 3 Apr 2018 20:54:04 +0000 (20:54 +0000)]
[LoopInterchange] Add remark for calls preventing interchanging.
It also updates test/Transforms/LoopInterchange/call-instructions.ll
to use accesses where we can prove dependence after D35430.
Reviewers: sebpop, karthikthecool, blitz.opensource
Reviewed By: sebpop
Differential Revision: https://reviews.llvm.org/D45206
llvm-svn: 329111
Alex Lorenz [Tue, 3 Apr 2018 20:50:05 +0000 (20:50 +0000)]
[driver][darwin] Do not infer -simulator environment for non-simulator SDKs
rdar://
36369832
llvm-svn: 329110
Vlad Tsyrklevich [Tue, 3 Apr 2018 20:10:40 +0000 (20:10 +0000)]
Add the ShadowCallStack attribute
Summary:
Introduce the ShadowCallStack function attribute. It's added to
functions compiled with -fsanitize=shadow-call-stack in order to mark
functions to be instrumented by a ShadowCallStack pass to be submitted
in a separate change.
Reviewers: pcc, kcc, kubamracek
Reviewed By: pcc, kcc
Subscribers: cryptoad, mehdi_amini, javed.absar, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D44800
llvm-svn: 329108
Rui Ueyama [Tue, 3 Apr 2018 20:08:45 +0000 (20:08 +0000)]
Instead of using std::copy, clear the vector first and add new elements. NFC.
Differential Revision: https://reviews.llvm.org/D45227
llvm-svn: 329107
Peter Collingbourne [Tue, 3 Apr 2018 19:45:10 +0000 (19:45 +0000)]
ELF: Use a vector of pairs to sort sections ordered using --symbol-ordering-file.
This improved performance by 0.5-1% linking Chromium for Android.
Differential Revision: https://reviews.llvm.org/D45222
llvm-svn: 329106
Aaron Smith [Tue, 3 Apr 2018 19:43:40 +0000 (19:43 +0000)]
[DebugInfoPDB] Add methods used to read function flags
The specific function flags are listed in CodeView::FunctionOption.
llvm-svn: 329105
Aaron Smith [Tue, 3 Apr 2018 19:41:27 +0000 (19:41 +0000)]
[DebugInfoPDB] Add a few missing definitions to PDBTypes.h
The missing definitions are from cvconst.h shipped with DIA SDK.
Correct the url to MSDN for MemoryTypeEnum and set the underlying
type of PDB_StackFrameType and PDB_MemoryType to uint16_t.
llvm-svn: 329104
Rui Ueyama [Tue, 3 Apr 2018 18:59:31 +0000 (18:59 +0000)]
Fix buildbots.
r329092 broke buildbots.
llvm-svn: 329103
Artem Dergachev [Tue, 3 Apr 2018 18:52:30 +0000 (18:52 +0000)]
[analyzer] Fix diagnostics in callees of interesting callees.
removeUnneededCalls() is responsible for removing path diagnostic pieces within
functions that don't contain "interesting" events. It makes bug reports
much tidier.
When a stack frame is known to be interesting, the function doesn't descend
into it to prune anything within it, even other callees that are totally boring.
Fix the function to prune boring callees in interesting stack frames.
Differential Revision: https://reviews.llvm.org/D45117
llvm-svn: 329102
Rafael Espindola [Tue, 3 Apr 2018 18:35:46 +0000 (18:35 +0000)]
Add a test for an issue fixed in r329092.
We were setting IsUsedInRegularObj in lazy symbols only used from IR.
llvm-svn: 329101
Sanjay Patel [Tue, 3 Apr 2018 18:34:56 +0000 (18:34 +0000)]
[x86] add tests for convert-FP-to-integer with constants; NFC
We don't constant fold any of these, but we could...but if we
do, we must produce the right answer.
Unlike the IR fptosi instruction or its DAG node counterpart
ISD::FP_TO_SINT, these are not undef for an out-of-range input.
llvm-svn: 329100
Artem Belevich [Tue, 3 Apr 2018 18:29:31 +0000 (18:29 +0000)]
Revert "Set calling convention for CUDA kernel"
This reverts r328795 which introduced an issue with referencing __global__
function templates. More details in the original review D44747.
llvm-svn: 329099
Richard Smith [Tue, 3 Apr 2018 18:28:13 +0000 (18:28 +0000)]
Use Clang when referring to the project and clang when referring to the binary.
llvm-svn: 329098
David Blaikie [Tue, 3 Apr 2018 18:22:14 +0000 (18:22 +0000)]
Restrict a test using named file descriptors to using the system shell
llvm-svn: 329097
David Blaikie [Tue, 3 Apr 2018 18:19:52 +0000 (18:19 +0000)]
Disable a test using environment variables that requires a real shell
llvm-svn: 329096
Jun Bum Lim [Tue, 3 Apr 2018 18:17:34 +0000 (18:17 +0000)]
[CodeGen]Add NoVRegs property on PostRASink and ShrinkWrap
Summary:
This change declare that PostRAMachineSinking and ShrinkWrap require NoVRegs
property, so now the MachineFunctionPass can enforce this check.
These passes are disabled in NVPTX & WebAssembly.
Reviewers: dschuff, jlebar, tra, jgravelle-google, MatzeB, sebpop, thegameg, mcrosier
Reviewed By: dschuff, thegameg
Subscribers: jholewinski, jfb, sbc100, aheejin, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D45183
llvm-svn: 329095
Kostya Kortchinsky [Tue, 3 Apr 2018 18:07:22 +0000 (18:07 +0000)]
[sanitizer] Remove empty Symbolizer PrepareForSandboxing
Summary:
`Symbolizer::PrepareForSandboxing` is empty for all platforms and apparently
has been for a while (D10213). Remove it, and shuffle things around so that the
platform specific code is now in `PlatformPrepareForSandboxing`.
This allows to have one less symbolizer dependency in a common file, which
helps for the upcoming split.
Also remove `SymbolizerPrepareForSandboxing` in tsan_go which appears to not
be used anywhere.
Reviewers: alekseyshl, eugenis, dvyukov, mcgrathr
Reviewed By: alekseyshl
Subscribers: kubamracek, delcypher, llvm-commits, #sanitizers
Differential Revision: https://reviews.llvm.org/D44953
llvm-svn: 329094
Jonas Devlieghere [Tue, 3 Apr 2018 18:01:18 +0000 (18:01 +0000)]
[dsymutil] Apply recursion workaround for threading
The DwarfLinker can have some very deep recursion that can max out the
(significantly smaller) stack when using threads. We don't want this
limitation when we only have a single thread. We already have this
workaround for the architecture-related threading. This patch applies
the same workaround to the parallel analysis and cloning.
Differential revision: https://reviews.llvm.org/D45172
llvm-svn: 329093
Rui Ueyama [Tue, 3 Apr 2018 18:01:18 +0000 (18:01 +0000)]
Make fetchIfLazy only fetch an object file. NFC.
Previously, fetchIfLazy did more than the name says. Now, setting
to UsedInRegularObj is moved to another function.
llvm-svn: 329092
Alexey Bataev [Tue, 3 Apr 2018 17:48:14 +0000 (17:48 +0000)]
[SLP] Fixed formatting, NFC.
llvm-svn: 329091
Sam McCall [Tue, 3 Apr 2018 17:35:57 +0000 (17:35 +0000)]
[clangd] synthesize fix message when the diagnostic doesn't provide one.
Summary:
Currently if a fix is attached directly to a diagnostic, we repeat the
diagnostic message as the fix message. From eyeballing the top diagnostics,
it seems describing the textual replacement would be much clearer.
e.g.
error: use of undeclared identifier 'goo'; did you mean 'foo'?
action before: use of undeclared identifier 'goo'; did you mean 'foo'?
action after: change 'goo' to 'foo'
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, MaskRay, cfe-commits
Differential Revision: https://reviews.llvm.org/D45069
llvm-svn: 329090
Alexey Bataev [Tue, 3 Apr 2018 17:28:55 +0000 (17:28 +0000)]
[DEBUGINFO] Add option that allows to disable emission of flags in .loc directives.
Summary:
Some targets do not support extended format of .loc directive and
support only simple format: .loc <FileID> <Line> <Column>. Patch adds
MCAsmInfo flag and option that allows emit .loc directive without
additional flags.
Reviewers: echristo
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D45184
llvm-svn: 329089
Bob Haarman [Tue, 3 Apr 2018 17:27:39 +0000 (17:27 +0000)]
[lld] fix data race in ELF/ICF.cpp
Summary:
r328610 fixed a data race in the COFF linker. This change makes a
similar fix to the ELF linker.
Reviewers: ruiu, pcc, rnk
Reviewed By: ruiu
Subscribers: emaste, llvm-commits, arichardson
Differential Revision: https://reviews.llvm.org/D45192
llvm-svn: 329088
Daniel Neilson [Tue, 3 Apr 2018 17:26:20 +0000 (17:26 +0000)]
[InstCombine] Fold compare of int constant against a splatted vector of ints
Summary:
Folding patterns like:
%vec = shufflevector <4 x i8> %insvec, <4 x i8> undef, <4 x i32> zeroinitializer
%cast = bitcast <4 x i8> %vec to i32
%cond = icmp eq i32 %cast, 0
into:
%ext = extractelement <4 x i8> %insvec, i32 0
%cond = icmp eq i32 %ext, 0
Combined with existing rules, this allows us to fold patterns like:
%insvec = insertelement <4 x i8> undef, i8 %val, i32 0
%vec = shufflevector <4 x i8> %insvec, <4 x i8> undef, <4 x i32> zeroinitializer
%cast = bitcast <4 x i8> %vec to i32
%cond = icmp eq i32 %cast, 0
into:
%cond = icmp eq i8 %val, 0
When we construct a splat vector via a shuffle, and bitcast the vector into an integer type for comparison against an integer constant. Then we can simplify the the comparison to compare the splatted value against the integer constant.
Reviewers: spatel, anna, mkazantsev
Reviewed By: spatel
Subscribers: efriedma, rengolin, llvm-commits
Differential Revision: https://reviews.llvm.org/D44997
llvm-svn: 329087
George Rimar [Tue, 3 Apr 2018 17:16:52 +0000 (17:16 +0000)]
[ELF] - Eliminate Lazy class.
Patch removes Lazy class which
is just an excessive layer.
Differential revision: https://reviews.llvm.org/D45083
llvm-svn: 329086
Alexey Bataev [Tue, 3 Apr 2018 17:14:47 +0000 (17:14 +0000)]
[SLP] Fix PR36481: vectorize reassociated instructions.
Summary:
If the load/extractelement/extractvalue instructions are not originally
consecutive, the SLP vectorizer is unable to vectorize them. Patch
allows reordering of such instructions.
Patch does not support reordering of the repeated instruction, this must
be handled in the separate patch.
Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43776
llvm-svn: 329085
Eric Christopher [Tue, 3 Apr 2018 17:07:05 +0000 (17:07 +0000)]
Remove a stale comment cut and pasted from another file.
llvm-svn: 329084
Andrea Di Biagio [Tue, 3 Apr 2018 16:46:23 +0000 (16:46 +0000)]
[llvm-mca] Move the logic that prints register file statistics to its own view. NFCI
Before this patch, the "BackendStatistics" view was responsible for printing the
register file usage (as well as many other statistics).
Now users can enable register file usage statistics using the command line flag
`-register-file-stats`. By default, the tool doesn't print register file
statistics.
llvm-svn: 329083
Alexey Bataev [Tue, 3 Apr 2018 16:40:33 +0000 (16:40 +0000)]
Recommit "[SLP] Fix issues with debug output in the SLP vectorizer."
The primary issue here is that using NDEBUG alone isn't enough to guard
debug printing -- instead the DEBUG() macro needs to be used so that the
specific pass debug logging check is employed. Without this, every
asserts-enabled build was printing out information when it hit this.
I also fixed another place where we had multiple statements in a DEBUG
macro to use {}s to be a bit cleaner. And I fixed a place that used
errs() rather than dbgs().
llvm-svn: 329082
Florian Hahn [Tue, 3 Apr 2018 16:37:58 +0000 (16:37 +0000)]
[LoopInterchange] Update tests so DA can handle access after D35430.
I have taken the opportunity to simplify some tests slightly and move
parts around.
It also brings back a few IR checks for interchangable loops.
Reviewers: karthikthecool, sebpop, grosser
Reviewed By: sebpop
Differential Revision: https://reviews.llvm.org/D45207
llvm-svn: 329081
Alexey Bataev [Tue, 3 Apr 2018 16:31:26 +0000 (16:31 +0000)]
[SLP] Added tests for checks of reordering of the repeated instructions,
NFC.
llvm-svn: 329080
Krzysztof Parzyszek [Tue, 3 Apr 2018 16:06:36 +0000 (16:06 +0000)]
[Hexagon] Remove -mhvx-double and the corresponding subtarget feature
Specifying the HVX vector length should be done via the -mhvx-length
option.
llvm-svn: 329079
Krzysztof Parzyszek [Tue, 3 Apr 2018 16:05:20 +0000 (16:05 +0000)]
[Hexagon] Remove unneeded attributes from lit test
llvm-svn: 329078
Krzysztof Parzyszek [Tue, 3 Apr 2018 15:59:10 +0000 (15:59 +0000)]
[Hexagon] Remove -mhvx-double and the corresponding subtarget feature
Specifying the HVX vector length should be done via the -mhvx-length
option.
llvm-svn: 329077
Puyan Lotfi [Tue, 3 Apr 2018 15:53:49 +0000 (15:53 +0000)]
Adding optional Name parameter to createVirtualRegister and createGenericVirtualRegister.
llvm-svn: 329076
Marshall Clow [Tue, 3 Apr 2018 15:48:24 +0000 (15:48 +0000)]
Implement P0754R2: The <version> header.
llvm-svn: 329075
Andrea Di Biagio [Tue, 3 Apr 2018 15:36:15 +0000 (15:36 +0000)]
[llvm-mca] Remove redundant include from BackendStatistics.h. NFC
Also use llvm::DenseMap for Histograms (instead of std::map).
llvm-svn: 329074
Haojian Wu [Tue, 3 Apr 2018 15:10:24 +0000 (15:10 +0000)]
[clang-tidy] Check for sizeof that call functions
Summary:
A common mistake that I have found in our codebase is calling a function to get an integer or enum that represents the type such as:
```
int numBytes = numElements * sizeof(x.GetType());
```
So this extends the `sizeof` check to check for these cases. There is also a `WarnOnSizeOfCall` option so it can be disabled.
Patch by Paul Fultz II!
Reviewers: hokein, alexfh, aaron.ballman, ilya-biryukov
Reviewed By: alexfh
Subscribers: lebedev.ri, xazax.hun, jkorous-apple, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D44231
llvm-svn: 329073
Guansong Zhang [Tue, 3 Apr 2018 15:01:34 +0000 (15:01 +0000)]
[OpenMP] enable bc file compilation using the latest clang
Summary: adding cuda-rdc flag to allow extern global data
Reviewers: grokos
Reviewed By: grokos
Subscribers: gregrodgers, mgorny, openmp-commits
Tags: #openmp
Differential Revision: https://reviews.llvm.org/D44992
llvm-svn: 329072
Benjamin Kramer [Tue, 3 Apr 2018 14:40:33 +0000 (14:40 +0000)]
Revert "[SLP] Fix PR36481: vectorize reassociated instructions."
This reverts commit r328980 and r329046. Makes the vectorizer crash.
llvm-svn: 329071
Ben Hamilton [Tue, 3 Apr 2018 14:07:11 +0000 (14:07 +0000)]
[clang-format/ObjC] Do not detect "[]" as ObjC method expression
Summary:
The following C++ code was being detected by
`guessLanguage()` as Objective-C:
#define FOO(...) auto bar = [] __VA_ARGS__;
This was because `[] __VA_ARGS__` is not currently detected as a C++
lambda expression (it has no parens or braces), so
`TokenAnnotator::parseSquare()` incorrectly treats the opening square
as an ObjC method expression.
We have two options to fix this:
1. Parse `[] __VA_ARGS__` explicitly as a C++ lambda
2. Make it so `[]` is never parsed as an Objective-C method expression
This diff implements option 2, which causes the `[` to be parsed
as `TT_ArraySubscriptLSquare` instead of `TT_ObjCMethodExpr`.
Note that when I fixed this, it caused one change in formatting
behavior, where the following was implicitly relying on the `[`
being parsed as `TT_ObjCMethodExpr`:
A<int * []> a;
becomes:
A<int *[]> a;
with `Style.PointerAlignment = Middle`.
I don't really know what the desired format is for this syntax; the
test was added by Janusz Sobczak and integrated by @djasper in
https://github.com/llvm-mirror/clang/commit/
b511fe9818829d7ece0cc0b2ce1fbe04a1f0739a
.
I went ahead and changed the test for now.
Test Plan: New tests added. Ran tests with:
% make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests
Fixes: https://bugs.llvm.org/show_bug.cgi?id=36248
Reviewers: djasper, jolesiak
Reviewed By: djasper
Subscribers: klimek, cfe-commits, djasper
Differential Revision: https://reviews.llvm.org/D45169
llvm-svn: 329070
Ben Hamilton [Tue, 3 Apr 2018 14:07:09 +0000 (14:07 +0000)]
[clang-format/ObjC] Do not insert space after opening brace of ObjC dict literal
Summary:
D44816 attempted to fix a few cases where `clang-format` incorrectly
inserted a space before the closing brace of an Objective-C dictionary
literal.
This revealed there were still a few cases where we inserted a space
after the opening brace of an Objective-C dictionary literal.
This fixes the formatting to be consistent and adds more tests.
Test Plan: New tests added. Confirmed tests failed before
diff and passed after diff.
Ran tests with:
% make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests
Reviewers: djasper, jolesiak, krasimir
Reviewed By: djasper
Subscribers: klimek, cfe-commits
Differential Revision: https://reviews.llvm.org/D45168
llvm-svn: 329069
Andrea Di Biagio [Tue, 3 Apr 2018 13:52:26 +0000 (13:52 +0000)]
[MC] Fix -Wmissing-field-initializer warning after r329067.
This should fix the problem reported by the lld buildbots:
- Builder lld-x86_64-darwin13, Build #19782
- Builder lld-perf-testsuite, Build #1419
llvm-svn: 329068
Andrea Di Biagio [Tue, 3 Apr 2018 13:36:24 +0000 (13:36 +0000)]
[MC][Tablegen] Allow the definition of processor register files in the scheduling model for llvm-mca
This patch allows the description of register files in processor scheduling
models. This addresses PR36662.
A new tablegen class named 'RegisterFile' has been added to TargetSchedule.td.
Targets can optionally describe register files for their processors using that
class. In particular, class RegisterFile allows to specify:
- The total number of physical registers.
- Which target registers are accessible through the register file.
- The cost of allocating a register at register renaming stage.
Example (from this patch - see file X86/X86ScheduleBtVer2.td)
def FpuPRF : RegisterFile<72, [VR64, VR128, VR256], [1, 1, 2]>
Here, FpuPRF describes a register file for MMX/XMM/YMM registers. On Jaguar
(btver2), a YMM register definition consumes 2 physical registers, while MMX/XMM
register definitions only cost 1 physical register.
The syntax allows to specify an empty set of register classes. An empty set of
register classes means: this register file models all the registers specified by
the Target. For each register class, users can specify an optional register
cost. By default, register costs default to 1. A value of 0 for the number of
physical registers means: "this register file has an unbounded number of
physical registers".
This patch is structured in two parts.
* Part 1 - MC/Tablegen *
A first part adds the tablegen definition of RegisterFile, and teaches the
SubtargetEmitter how to emit information related to register files.
Information about register files is accessible through an instance of
MCExtraProcessorInfo.
The idea behind this design is to logically partition the processor description
which is only used by external tools (like llvm-mca) from the processor
information used by the llvm machine schedulers.
I think that this design would make easier for targets to get rid of the extra
processor information if they don't want it.
* Part 2 - llvm-mca related *
The second part of this patch is related to changes to llvm-mca.
The main differences are:
1) class RegisterFile now needs to take into account the "cost of a register"
when allocating physical registers at register renaming stage.
2) Point 1. triggered a minor refactoring which lef to the removal of the
"maximum 32 register files" restriction.
3) The BackendStatistics view has been updated so that we can print out extra
details related to each register file implemented by the processor.
The effect of point 3. is also visible in tests register-files-[1..5].s.
Differential Revision: https://reviews.llvm.org/D44980
llvm-svn: 329067
Sanjay Patel [Tue, 3 Apr 2018 13:05:20 +0000 (13:05 +0000)]
[LangRef] fix description and examples of fptrunc
As noted in PR36966:
https://bugs.llvm.org/show_bug.cgi?id=36966
The old description doesn't match what we do in code,
so this just fixes the documentation to avoid confusion.
Differential Revision: https://reviews.llvm.org/D45190
llvm-svn: 329065
Hiroshi Inoue [Tue, 3 Apr 2018 12:49:42 +0000 (12:49 +0000)]
[PowerPC] reorder entries in P9InstrResources.td in alphabetical order; NFC
Reorder entries added in my previous commit (rL328969) to keep alphabetical order.
llvm-svn: 329064
George Rimar [Tue, 3 Apr 2018 12:39:28 +0000 (12:39 +0000)]
[ELF] - Check that output sections fit in address space.
Added checks to test that we do not produce
output where VA of sections overruns the address
space available.
Differential revision: https://reviews.llvm.org/D43820
llvm-svn: 329063
George Rimar [Tue, 3 Apr 2018 12:28:53 +0000 (12:28 +0000)]
[ELF] - Fix the comment. NFC.
llvm-svn: 329062
George Rimar [Tue, 3 Apr 2018 12:19:04 +0000 (12:19 +0000)]
[ELF] - Relax checks for R_386_8/R_386_16 relocations.
This fixes PR36927.
The issue is next. Imagine we have -Ttext 0x7c and code below.
.code16
.global _start
_start:
movb $_start+0x83,%ah
So we have R_386_8 relocation and _start at 0x7C.
Addend is 0x83 == 131. We will sign extend it to 0xffffffffffffff83.
Now, 0xffffffffffffff83 + 0x7c gives us 0xFFFFFFFFFFFFFFFF.
Techically 0x83 + 0x7c == 0xFF, we do not exceed 1 byte value, but
currently LLD errors out, because we use checkUInt<8>.
Let's try to use checkInt<8> now and the following code to see if it can help (no):
main.s:
.byte foo
input.s:
.globl foo
.hidden foo
foo = 0xff
Here, foo is 0xFF. And addend is 0x0. Final value is 0x00000000000000FF.
Again, it fits one byte well, but with checkInt<8>,
we would error out it, so we can't use it.
What we want to do is to check that the result fits 1 byte well.
Patch changes the check to checkIntUInt to fix the issue.
Differential revision: https://reviews.llvm.org/D45051
llvm-svn: 329061
George Rimar [Tue, 3 Apr 2018 12:06:29 +0000 (12:06 +0000)]
[ELF] - Simplify createFiles. NFCI.
Groups paired options together.
Differential revision: https://reviews.llvm.org/D45090
llvm-svn: 329060
George Rimar [Tue, 3 Apr 2018 11:58:23 +0000 (11:58 +0000)]
[ELF] - X86_64: don't allow 8/16 bit dynamic relocations.
Having 8/16 bits dynamic relocations is incorrect.
Both gold and bfd (built from latest sources) disallow
that too.
Differential revision: https://reviews.llvm.org/D45158
llvm-svn: 329059