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Sanjay Patel [Thu, 13 Apr 2017 18:47:06 +0000 (18:47 +0000)]
[InstCombine] fold X == 0 || X == -1 to one compare (PR32524)
This is effectively a retry of:
https://reviews.llvm.org/rL299851
but now we have tests and an assert to make sure the bug
that was exposed with that attempt will not happen again.
I'll fix the code duplication and missing sibling fold next,
but I want to make this change as small as possible to reduce
risk since I messed it up last time.
This should fix:
https://bugs.llvm.org/show_bug.cgi?id=32524
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300236
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Reid Kleckner [Thu, 13 Apr 2017 18:42:03 +0000 (18:42 +0000)]
[DAE] Simplify call site replacement code with CallSite NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300235
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Craig Topper [Thu, 13 Apr 2017 18:25:53 +0000 (18:25 +0000)]
[ValueTracking] Move a temporary APInt instead of copying it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300233
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Reid Kleckner [Thu, 13 Apr 2017 18:11:03 +0000 (18:11 +0000)]
[InstCombine] Simplify attribute code with new AttributeList::get NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300230
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Reid Kleckner [Thu, 13 Apr 2017 18:10:30 +0000 (18:10 +0000)]
[ArgPromotion] Don't drop !prof metadata on promoted calls
Noticed by inspection while doing attribute work. DAE, InstCombineCalls,
and ArgPromotion have a fair amount of duplicated code for hacking on
call sites, and you can find bugs by comparing them.
Add a test case for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300229
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Stanislav Mekhanoshin [Thu, 13 Apr 2017 17:53:07 +0000 (17:53 +0000)]
[AMDGPU] Combine DS operations with offsets bigger than byte
In many cases ds operations can be combined even if offsets do not
fit into 8 bit encoding. What it takes is to adjust base address.
Differential Revision: https://reviews.llvm.org/D31993
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300227
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Craig Topper [Thu, 13 Apr 2017 17:39:46 +0000 (17:39 +0000)]
[APSInt] Remove named And/Or/Xor methods.
No one uses them and I may improve the operator&, operator|, and operator^ to better reuse memory allocations like APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300224
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Sanjay Patel [Thu, 13 Apr 2017 17:36:24 +0000 (17:36 +0000)]
[InstCombine] use similar ops for related folds; NFCI
It's less efficient to produce 'ule' than 'ult' since we know we're going to
canonicalize to 'ult', but we shouldn't have duplicated code for these folds.
As a trade-off, this was a pretty terrible way to make a '2'. :)
if (LHSC == SubOne(RHSC))
AddC = ConstantExpr::getSub(AddOne(RHSC), LHSC);
The next steps are to share the code to fix PR32524 and add the missing 'and'
fold that was left out when PR14708 was fixed:
https://bugs.llvm.org/show_bug.cgi?id=14708
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300222
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Craig Topper [Thu, 13 Apr 2017 17:12:00 +0000 (17:12 +0000)]
[APInt] Fix the returns description for the postfix increment/decrement operators. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300219
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Craig Topper [Thu, 13 Apr 2017 16:54:25 +0000 (16:54 +0000)]
Revert r300213 "[APSInt] Add a static_assert to ensure APSInt is packed well with APInt after r300171"
MSVC doesn't pack derived classes the same way clang/gcc do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300217
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Brian Gesiak [Thu, 13 Apr 2017 16:44:25 +0000 (16:44 +0000)]
[Analysis] Support bitreverse in -demanded-bits pass
Summary:
* Add a bitreverse case in the demanded bits analysis pass.
* Add tests for the bitreverse (and bswap) intrinsic in the
demanded bits pass.
* Add a test case to the BDCE tests: that manipulations to
high-order bits are eliminated once the bits are reversed
and then right-shifted.
Reviewers: mkuper, jmolloy, hfinkel, trentxintong
Reviewed By: jmolloy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D31857
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300215
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Craig Topper [Thu, 13 Apr 2017 16:34:49 +0000 (16:34 +0000)]
[APSInt] Add a static_assert to ensure APSInt is packed well with APInt after r300171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300213
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Tobias Edler von Koch [Thu, 13 Apr 2017 16:24:14 +0000 (16:24 +0000)]
LTO: Pass SF_Executable flag through to InputFile::Symbol
Summary:
The linker needs to be able to determine whether a symbol is text or data to
handle the case of a common being overridden by a strong definition in an
archive. If the archive contains a text member of the same name as the common,
that function is discarded. However, if the archive contains a data member of
the same name, that strong definition overrides the common. This is a behavior
of ld.bfd, which the Qualcomm linker also supports in LTO.
Here's a test case to illustrate:
####
cat > 1.c << \!
int blah;
!
cat > 2.c << \!
int blah() {
return 0;
}
!
cat > 3.c << \!
int blah = 20;
!
clang -c 1.c
clang -c 2.c
clang -c 3.c
ar cr lib.a 2.o 3.o
ld 1.o lib.a -t
####
The correct output is:
1.o
(lib.a)3.o
Thanks to Shankar Easwaran and Hemant Kulkarni for the test case!
Reviewers: mehdi_amini, rafael, pcc, davide
Reviewed By: pcc
Subscribers: davide, llvm-commits, inglorion
Differential Revision: https://reviews.llvm.org/D31901
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300205
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Krzysztof Parzyszek [Thu, 13 Apr 2017 16:05:35 +0000 (16:05 +0000)]
[Hexagon] Unxfail passing tests
r300198 fixed a problem that caused two tests to be xfailed. Unxfail
these tests now, since they are passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300203
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Sanjay Patel [Thu, 13 Apr 2017 16:05:01 +0000 (16:05 +0000)]
[InstCombine] fix assert to not always be true
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300202
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Sanjay Patel [Thu, 13 Apr 2017 15:46:39 +0000 (15:46 +0000)]
[InstCombine] add/move tests for or-of-icmps; NFC
If we had these tests, the bug caused by https://reviews.llvm.org/rL299851 would have been caught sooner.
There's also an assert in the code that should have caught that bug, but the assert line itself has a bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300201
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Geoff Berry [Thu, 13 Apr 2017 15:36:25 +0000 (15:36 +0000)]
Re-apply "[GVNHoist] Move GVNHoist to function simplification part of pipeline."
This reverts commit r296872 now that PR32153 has been fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300200
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Krzysztof Parzyszek [Thu, 13 Apr 2017 15:05:51 +0000 (15:05 +0000)]
[Hexagon] Implement HexagonTargetLowering::CanLowerReturn
Patch by Michael Wu.
Differential Revision: https://reviews.llvm.org/D32000
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300199
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Krzysztof Parzyszek [Thu, 13 Apr 2017 15:00:18 +0000 (15:00 +0000)]
[Hexagon] Fix "LowerFormalArguments emitted a value with the wrong type!" assertion
Patch by Michael Wu.
Differential Revision: https://reviews.llvm.org/D31999
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300198
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Serge Pavlov [Thu, 13 Apr 2017 14:10:52 +0000 (14:10 +0000)]
Use methods to access data stored with frame instructions
Instructions CALLSEQ_START..CALLSEQ_END and their target dependent
counterparts keep data like frame size, stack adjustment etc. These
data are accessed by getOperand using hard coded indices. It is
error prone way. This change implements the access by special methods,
which improve readability and allow changing data representation without
massive changes of index values.
Differential Revision: https://reviews.llvm.org/D31953
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300196
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NAKAMURA Takumi [Thu, 13 Apr 2017 11:40:32 +0000 (11:40 +0000)]
llvm/test/BugPoint/compile-custom.ll: Use %/s for its path not to be mis-escaped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300193
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Ayman Musa [Thu, 13 Apr 2017 10:03:45 +0000 (10:03 +0000)]
[X86] Added missing mayLoad/mayStore attributes to some X86 instructions.
Throughout the effort of automatically generating the X86 memory folding tables these missing information were encountered.
This is a preparation work for a future patch including the automation of these tables.
Differential Revision: https://reviews.llvm.org/D31714
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300190
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George Rimar [Thu, 13 Apr 2017 09:52:50 +0000 (09:52 +0000)]
[DWARF] - Simplify (use dyn_cast instead of isa + cast).
This addresses post commit review comments for r300039.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300188
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Daniel Sanders [Thu, 13 Apr 2017 09:45:37 +0000 (09:45 +0000)]
[globalisel][tablegen] Report more detail in some SelectionDAG import failures. NFC
Reviewers: ab, t.p.northover, qcolombet, aditya_nandakumar, rovka
Reviewed By: ab
Subscribers: dberris, kristof.beyls, igorb, llvm-commits
Differential Revision: https://reviews.llvm.org/D31325
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300186
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Ayman Musa [Thu, 13 Apr 2017 09:26:49 +0000 (09:26 +0000)]
Reverting cmake/modules/AddLLVM.cmake changes from revision 300184 (Added by mistake).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300185
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Ayman Musa [Thu, 13 Apr 2017 09:12:32 +0000 (09:12 +0000)]
[X86] Change instructions names to keep consistency with the naming convention. NFC
Differential Revision: https://reviews.llvm.org/D31743
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300184
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Ayal Zaks [Thu, 13 Apr 2017 09:07:23 +0000 (09:07 +0000)]
[LV] Refactor ILV to provide vectorizeInstruction(); NFC
Refactoring InnerLoopVectorizer's vectorizeBlockInLoop() to provide
vectorizeInstruction(). Aligning DeadInstructions with its only user.
Facilitates driving the transformation by VPlan - follows
https://reviews.llvm.org/D28975 and its tentative breakdown.
Differential Revision: https://reviews.llvm.org/D31997
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300183
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Craig Topper [Thu, 13 Apr 2017 07:31:52 +0000 (07:31 +0000)]
Fix typo in static_assert message. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300179
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Lang Hames [Thu, 13 Apr 2017 06:20:45 +0000 (06:20 +0000)]
[ORC] Temporarily disable the RPC Error/Expected unit tests while I investigate
bot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300177
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Lang Hames [Thu, 13 Apr 2017 05:23:50 +0000 (05:23 +0000)]
[Orc] Fix bool serialization for RawByteChannels.
The bool type may be larger than the char type, so assuming we can cast from
bool to char and write a byte out to the stream is unsafe.
Hopefully this will get RPCUtilsTest.ReturnExpectedFailure passing on the bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300174
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Lang Hames [Thu, 13 Apr 2017 05:05:26 +0000 (05:05 +0000)]
[ORC] Remove more extraneous semicolons from r300167, rename the RPC Expected
tests to be consistent with the Error tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300173
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George Burgess IV [Thu, 13 Apr 2017 05:00:31 +0000 (05:00 +0000)]
Remove more lies from the LangRef.
Same change as in r300168, but for invoke instead of call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300172
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Craig Topper [Thu, 13 Apr 2017 04:59:11 +0000 (04:59 +0000)]
[APInt] Reorder fields to avoid a hole in the middle of the class
Summary:
APInt is currently implemented with an unsigned BitWidth field first and then a uint_64/pointer union. Due to the 64-bit size of the union there is a hole after the bitwidth.
Putting the union first allows the class to be packed. Making it 12 bytes instead of 16 bytes. An APSInt goes from 20 bytes to 16 bytes.
This shows a 4k reduction on the size of the opt binary on my local x86-64 build. So this enables some other improvement to the code as well.
Reviewers: dblaikie, RKSimon, hans, davide
Reviewed By: davide
Subscribers: davide, llvm-commits
Differential Revision: https://reviews.llvm.org/D32001
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300171
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Lang Hames [Thu, 13 Apr 2017 04:49:00 +0000 (04:49 +0000)]
[ORC] Remove extraneous semi-colon added in r300167.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300170
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Craig Topper [Thu, 13 Apr 2017 04:36:06 +0000 (04:36 +0000)]
[APInt] Generalize the implementation of tcIncrement to support adding a full 'word' by introducing tcAddPart. Use this to support tcIncrement, operator++ and operator+=(uint64_t). Do the same for subtract. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300169
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George Burgess IV [Thu, 13 Apr 2017 04:01:55 +0000 (04:01 +0000)]
Update the LangRef to reflect reality.
At the very least, we have CallInst::setIsNoInline() for adding the
noinline attribute to callsites, and I'm told alwaysinline seems to
work.
Thought of adding "not all attributes are guaranteed to work here". If
someone thinks that would be better (or has a better way of phrasing
that, etc.), happy to add it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300168
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Lang Hames [Thu, 13 Apr 2017 03:51:35 +0000 (03:51 +0000)]
[ORC] Add RPC and serialization support for Errors and Expecteds.
This patch allows Error and Expected types to be passed to and returned from
RPC functions.
Serializers and deserializers for custom error types (types deriving from the
ErrorInfo class template) can be registered with the SerializationTraits for
a given channel type (see registerStringError in RPCSerialization.h for an
example), allowing a given custom type to be sent/received. Unregistered types
will be serialized/deserialized as StringErrors using the custom type's log
message as the error string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300167
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Zachary Turner [Thu, 13 Apr 2017 02:28:17 +0000 (02:28 +0000)]
Remove some unused private fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300163
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Craig Topper [Thu, 13 Apr 2017 01:31:40 +0000 (01:31 +0000)]
[InstCombine] Add vector version of a test to show missing optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300161
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Peter Collingbourne [Thu, 13 Apr 2017 01:26:12 +0000 (01:26 +0000)]
Support: Add a VCSRevision.h header file.
This is a magic header file supported by the build system that provides a
single definition, LLVM_REVISION, containing an LLVM revision identifier,
if available. This functionality previously lived in the LTO library, but
I am moving it out to lib/Support because I want to also start using it in
lib/Object to create the IR symbol table.
This change also fixes a bug where LLVM_REVISION was never actually being
used in lib/LTO because the macro HAS_LLVM_REVISION was never defined (it
was misspelled as HAVE_SVN_VERSION_INC in lib/LTO/CMakeLists.txt, and was
only being defined in a non-existent file Version.cpp).
I also changed the code to use "git rev-parse --git-dir" to locate the .git
directory, instead of looking for it in the LLVM source root directory,
which makes this compatible with monorepos as well as git worktrees.
Differential Revision: https://reviews.llvm.org/D31985
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300160
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Lang Hames [Thu, 13 Apr 2017 01:06:45 +0000 (01:06 +0000)]
[ORC] Add missing file from r300155.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300157
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Lang Hames [Thu, 13 Apr 2017 01:03:06 +0000 (01:03 +0000)]
[ORC] Use native Errors rather than converted std::error_codes for ORC RPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300155
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Reid Kleckner [Thu, 13 Apr 2017 00:58:09 +0000 (00:58 +0000)]
[IR] Take func, ret, and arg attrs separately in AttributeList::get
This seems like a much more natural API, based on Derek Schuff's
comments on r300015. It further hides the implementation detail of
AttributeList that function attributes come last and appear at index
~0U, which is easy for the user to screw up. git diff says it saves code
as well: 97 insertions(+), 137 deletions(-)
This also makes it easier to change the implementation, which I want to
do next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300153
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Craig Topper [Thu, 13 Apr 2017 00:20:31 +0000 (00:20 +0000)]
[IR] Remove the APIntMoveTy typedef from ConstantRange. Use APInt type directly.
This typedef used to be conditional based on whether rvalue references were supported. Looks like it got left behind when we switched to always having rvalue references with c++11. I don't think it provides any value now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300146
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Richard Smith [Thu, 13 Apr 2017 00:14:39 +0000 (00:14 +0000)]
Work around MSVC rejects-valid bug related to C++11 narrowing conversions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300144
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Konstantin Zhuravlyov [Wed, 12 Apr 2017 23:57:37 +0000 (23:57 +0000)]
Fix compiler error in Attributes.cpp
```
Compiling Attributes.cpp ...
../../../Attributes.cpp: In member function 'std::__1::pair<unsigned int, llvm::Optional<unsigned int> > llvm::AttributeSet::getAllocSizeArgs() const':
../../../Attributes.cpp:542:69: error: operands to ?: have different types 'std::__1::pair<unsigned int, llvm::Optional<unsigned int> >' and 'std::__1::pair<int, int>'
return SetNode ? SetNode->getAllocSizeArgs() : std::make_pair(0, 0);
^
../../../Attributes.cpp:543:1: error: control reaches end of non-void function [-Werror=return-type]
}
^
```
Differential Revision: https://reviews.llvm.org/D31981
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300143
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Wei Ding [Wed, 12 Apr 2017 23:51:47 +0000 (23:51 +0000)]
AMDGPU : Fix common dominator of two incoming blocks terminates with uniform branch issue.
Differential Revision: http://reviews.llvm.org/D31350
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300142
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Richard Smith [Wed, 12 Apr 2017 23:43:58 +0000 (23:43 +0000)]
Fix some ArgList uses after API change in r300135.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300139
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Zachary Turner [Wed, 12 Apr 2017 23:27:43 +0000 (23:27 +0000)]
Fix initialization order of class members.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300137
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Richard Smith [Wed, 12 Apr 2017 23:19:51 +0000 (23:19 +0000)]
ArgList: cache index ranges containing arguments with each ID
Improve performance of argument list parsing with large numbers of IDs and
large numbers of arguments, by tracking a conservative range of indexes within
the argument list that might contain an argument with each ID. In the worst
case (when the first and last argument with a given ID are at the opposite ends
of the argument list), this still results in a linear-time walk of the list,
but it helps substantially in the common case where each ID occurs only once,
or a few times close together in the list.
This gives a ~10x speedup to clang's `test/Driver/response-file.c`, which
constructs a very large set of command line arguments and feeds them to the
clang driver.
Differential Revision: https://reviews.llvm.org/D30130
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300135
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Zachary Turner [Wed, 12 Apr 2017 23:18:51 +0000 (23:18 +0000)]
[llvm-pdbdump] Minor prepatory refactor of Class Def Dumper.
In a followup patch I intend to introduce an additional dumping
mode which dumps a graphical representation of a class's layout.
In preparation for this, the text-based layout printer needs to
be split out from the graphical layout printer, and both need
to be able to use the same code for printing the intro and outro
of a class's definition (e.g. base class list, etc).
This patch does so, and in the process introduces a skeleton
definition for the graphical printer, while currently making
the graphical printer just print nothing.
NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300134
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Zachary Turner [Wed, 12 Apr 2017 23:18:21 +0000 (23:18 +0000)]
[llvm-pdbdump] More advanced class definition dumping.
Previously the dumping of class definitions was very primitive,
and it made it hard to do more than the most trivial of output
formats when dumping. As such, we would only dump one line for
each field, and then dump non-layout items like nested types
and enums.
With this patch, we do a complete analysis of the object
hierarchy including aggregate types, bases, virtual bases,
vftable analysis, etc. The only immediately visible effects
of this are that a) we can now dump a line for the vfptr where
before we would treat that as padding, and b) we now don't
treat virtual bases that come at the end of a class as padding
since we have a more detailed analysis of the class's storage
usage.
In subsequent patches, we should be able to use this analysis
to display a complete graphical view of a class's layout including
recursing arbitrarily deep into an object's base class / aggregate
member hierarchy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300133
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Akira Hatanaka [Wed, 12 Apr 2017 23:15:10 +0000 (23:15 +0000)]
[libFuzzer] XFAIL fuzzer-oom.test on Darwin.
The test fails on Darwin because Fuzzer::DeathCallback (which calls
DumpCurrentUnit("crash-")) is called before DumpCurrentUnit("oom-") is
called in Fuzzer::RssLimitCallback. DeathCallback is transitively called
from __sanitizer_print_memory_profile.
This should fix the fuzzer bot that has been failing for a while:
http://lab.llvm.org:8080/green/job/libFuzzer/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300127
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Craig Topper [Wed, 12 Apr 2017 22:54:24 +0000 (22:54 +0000)]
[InstSimplify] Don't try to constant fold AllocaInsts since it won't do anything.
Should give a small compile time improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300125
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Reid Kleckner [Wed, 12 Apr 2017 22:30:37 +0000 (22:30 +0000)]
[IR] Make AttributeSet constructor from AttributeSetNode* explicit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300119
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Craig Topper [Wed, 12 Apr 2017 22:29:23 +0000 (22:29 +0000)]
[ValueTracking] Teach GetUnderlyingObject to stop when it reachs an alloca instruction.
Previously it tried to call SimplifyInstruction which doesn't know anything about alloca so defers to constant folding which also doesn't do anything with alloca. This results in wasted cycles making calls that won't do anything. Given the frequency with which this function is called this time adds up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300118
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Reid Kleckner [Wed, 12 Apr 2017 22:22:01 +0000 (22:22 +0000)]
[IR] Assert that we never create an empty AttributeListImpl, NFC
Delete following conditional that is always true as a result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300117
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Matt Arsenault [Wed, 12 Apr 2017 21:58:23 +0000 (21:58 +0000)]
AMDGPU: Fix invalid copies when copying i1 to phys reg
Insert a VReg_1 virtual register so the i1 workaround pass
can handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300113
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Stanislav Mekhanoshin [Wed, 12 Apr 2017 20:48:56 +0000 (20:48 +0000)]
[AMDGPU] Generate range metadata for workitem id
If workgroup size is known inform llvm about range returned by local
id and local size queries.
Differential Revision: https://reviews.llvm.org/D31804
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300102
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Piotr Padlewski [Wed, 12 Apr 2017 20:45:12 +0000 (20:45 +0000)]
Remove readnone from invariant.group.barrier
Summary:
Readnone attribute would cause CSE of two barriers with
the same argument, which is invalid by example:
struct Base {
virtual int foo() { return 42; }
};
struct Derived1 : Base {
int foo() override { return 50; }
};
struct Derived2 : Base {
int foo() override { return 100; }
};
void foo() {
Base *x = new Base{};
new (x) Derived1{};
int a = std::launder(x)->foo();
new (x) Derived2{};
int b = std::launder(x)->foo();
}
Here 2 calls of std::launder will produce @llvm.invariant.group.barrier,
which would be merged into one call, causing devirtualization
to devirtualize second call into Derived1::foo() instead of
Derived2::foo()
Reviewers: chandlerc, dberlin, hfinkel
Subscribers: llvm-commits, rsmith, amharc
Differential Revision: https://reviews.llvm.org/D31531
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300101
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Vassil Vassilev [Wed, 12 Apr 2017 20:43:11 +0000 (20:43 +0000)]
Append -w when LLVM_ENABLE_WARNINGS is Off.
Reviewed by rnk (D31702)!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300100
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Peter Collingbourne [Wed, 12 Apr 2017 20:02:09 +0000 (20:02 +0000)]
Bitcode: Move version and global value module code parsers to separate functions. NFCI.
This will make it easier to teach this code about the string table.
Differential Revision: https://reviews.llvm.org/D31828
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300099
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Zachary Turner [Wed, 12 Apr 2017 19:59:37 +0000 (19:59 +0000)]
[Support] Add support for unique_ptr<> to Casting.h.
Often you have a unique_ptr<T> where T supports LLVM's
casting methods, and you wish to cast it to a unique_ptr<U>.
Prior to this patch, this requires doing hacky things like:
unique_ptr<U> Casted;
if (isa<U>(Orig.get()))
Casted.reset(cast<U>(Orig.release()));
This is overly verbose, and it would be nice to just be able
to use unique_ptr directly with cast and dyn_cast. To this end,
this patch updates cast<> to work directly with unique_ptr<T>,
so you can now write:
auto Casted = cast<U>(std::move(Orig));
Since it's possible for dyn_cast<> to fail, however, we choose
to use a slightly different API here, because it's awkward to
write
if (auto Casted = dyn_cast<U>(std::move(Orig))) {}
when Orig may end up not having been moved at all. So the
interface for dyn_cast is
if (auto Casted = unique_dyn_cast<U>(Orig)) {}
Where the inclusion of `unique` in the name of the cast operator
re-affirms that regardless of success of or fail of the casting,
exactly one of the input value and the return value will contain
a non-null result.
Differential Revision: https://reviews.llvm.org/D31890
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300098
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Zachary Turner [Wed, 12 Apr 2017 19:52:47 +0000 (19:52 +0000)]
Remove svnprop eol-style:native from Casting.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300096
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Craig Topper [Wed, 12 Apr 2017 19:32:47 +0000 (19:32 +0000)]
[InstCombine] Teach SimplifyMultipleUseDemandedBits to handle And/Or/Xor known bits using the LHS/RHS known bits it already acquired without recursing back into computeKnownBits.
This replicates the known bits and constant creation code from the single use case for these instructions and adds it here. The computeKnownBits and constant creation code for other instructions is now in the default case of the opcode switch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300094
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Craig Topper [Wed, 12 Apr 2017 19:08:03 +0000 (19:08 +0000)]
[InstCombine] Remove unreachable code for turning an And where all demanded bits on both sides are known to be zero into a constant 0.
We already handled a superset check that included the known ones too and folded to a constant that may include ones. But it can also handle the case of no ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300093
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Sanjay Patel [Wed, 12 Apr 2017 18:39:53 +0000 (18:39 +0000)]
[InstCombine] fix wrong undef handling when converting select to shuffle
As discussed in:
https://bugs.llvm.org/show_bug.cgi?id=32486
...the canonicalization of vector select to shufflevector does not hold up
when undef elements are present in the condition vector.
Try to make the undef handling clear in the code and the LangRef.
Differential Revision: https://reviews.llvm.org/D31980
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300092
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Craig Topper [Wed, 12 Apr 2017 18:39:27 +0000 (18:39 +0000)]
[SelectionDAG] Use APInt move assignment to avoid 2 memory allocations and copies when bit width is larger than 64-bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300091
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Kyle Butt [Wed, 12 Apr 2017 18:30:32 +0000 (18:30 +0000)]
CodeGen: BlockPlacement: Add comment about DenseMap Safety.
The use of a DenseMap in precomputeTriangleChains does not cause
non-determinism, even though it is iterated over, as the only thing the
iteration does is to insert entries into a new DenseMap, which is not iterated.
Comment only change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300088
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Peter Collingbourne [Wed, 12 Apr 2017 18:27:00 +0000 (18:27 +0000)]
llvm-lto2: Add a dump-symtab subcommand.
This allows us to test the symbol table APIs for LTO input files.
Differential Revision: https://reviews.llvm.org/D31920
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300086
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Craig Topper [Wed, 12 Apr 2017 18:25:25 +0000 (18:25 +0000)]
[InstCombine] In SimplifyMultipleUseDemandedBits, use a switch instead of cascaded ifs on opcode. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300085
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Craig Topper [Wed, 12 Apr 2017 18:17:46 +0000 (18:17 +0000)]
[InstCombine] Teach SimplifyDemandedInstructionBits that even if we reach an instruction that has multiple uses, if we know all the bits for the demanded bits for this context we can go ahead and create a constant.
Currently if we reach an instruction with multiples uses we know we can't do any optimizations to that instruction itself since we only have the demanded bits for one of the users. But if we know all of the bits are zero/one for that one user we can still go ahead and create a constant to give to that user.
This might then reduce the instruction to having a single use and allow additional optimizations on the other path.
This picks up an additional case that r300075 didn't catch.
Differential Revision: https://reviews.llvm.org/D31552
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300084
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Matthias Braun [Wed, 12 Apr 2017 18:09:05 +0000 (18:09 +0000)]
MachineScheduler: Skip acyclic latency heuristic for in-order cores
The current heuristic is triggered on `InFlightCount > BufferLimit`
which isn't really helpful on in-order cores where BufferLimit is zero.
Note that we already get latency hiding effects for in order cores
by instructions staying in the pending queue on stalls; The additional
latency scheduling heuristics only have minimal effects after that while
occasionally increasing register pressure too much resulting in extra
spills.
My motivation here is additional spills/reloads ending up in a loop in
464.h264ref / BlockMotionSearch function resulting in a 4% overal
regression on an in order core. rdar://
30264380
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300083
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Craig Topper [Wed, 12 Apr 2017 18:05:21 +0000 (18:05 +0000)]
[InstCombine] Move portion of SimplifyDemandedUseBits that deals with instructions with multiple uses out to a separate method. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300082
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Renato Golin [Wed, 12 Apr 2017 18:03:09 +0000 (18:03 +0000)]
[SystemZ] Fix more target specific tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300081
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Renato Golin [Wed, 12 Apr 2017 17:14:46 +0000 (17:14 +0000)]
[SystemZ] Fix target specific tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300078
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Dmitry Preobrazhensky [Wed, 12 Apr 2017 17:10:07 +0000 (17:10 +0000)]
[AMDGPU][MC] Added support for several VI-specific opcodes (s_wakeup, etc)
Added support for VI:
- s_endpgm_saved
- s_wakeup
- s_rfe_restore_b64
- v_perm_b32
Enabled for VI:
- v_mov_fed_b32
- v_mov_fed_b32_e64
See bug 32593: https://bugs.llvm.org//show_bug.cgi?id=32593
Reviewers: artem.tamazov, vpykhtin
Differential Revision: https://reviews.llvm.org/D31931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300076
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Craig Topper [Wed, 12 Apr 2017 16:49:59 +0000 (16:49 +0000)]
Teach SimplifyDemandedUseBits that adding or subtractings 0s from every bit below the highest demanded bit can be simplified
If we are adding/subtractings 0s below the highest demanded bit we can just use the other operand and remove the operation.
My primary motivation is observing that we can call ShrinkDemandedConstant for the add/sub and create a 0 constant, rather than removing the add completely. In the case I saw, we modified the constant on an add instruction to a 0, but the add is not put into the worklist. So we didn't revisit it until the next InstCombine iteration. This caused an IR modification to remove add and a subsequent iteration to be ran.
With this change we get bypass the add in the first iteration and prevent the second iteration from changing anything.
Differential Revision: https://reviews.llvm.org/D31120
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300075
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Dmitry Preobrazhensky [Wed, 12 Apr 2017 16:31:18 +0000 (16:31 +0000)]
[AMDGPU][MC] Corrected parsing of v_cmp_class* and v_cmpx_class*
Fixed bug 32565: https://bugs.llvm.org//show_bug.cgi?id=32565
Reviewers: vpykhtin
Differential Revision: https://reviews.llvm.org/D31820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300073
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Derek Schuff [Wed, 12 Apr 2017 16:03:00 +0000 (16:03 +0000)]
[WebAssembly] Update use of Attributes after r299875
This fixes the failing WebAssemblyLowerEmscriptenEHSjLj tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300072
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Dmitry Preobrazhensky [Wed, 12 Apr 2017 15:36:09 +0000 (15:36 +0000)]
[AMDGPU][MC] Corrected encoding of V_MQSAD_U32_U8 for CI
Corrected encoding of V_MQSAD_U32_U8 for CI
See bug 32552: https://bugs.llvm.org//show_bug.cgi?id=32552
Reviewers: vpykhtin
Differential Revision: https://reviews.llvm.org/D31810
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300070
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Easwaran Raman [Wed, 12 Apr 2017 15:26:15 +0000 (15:26 +0000)]
Fix the bootstrap failure caused by r299986.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300069
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Sanjay Patel [Wed, 12 Apr 2017 15:11:33 +0000 (15:11 +0000)]
[InstCombine] morph an existing instruction instead of creating a new one
One potential way to make InstCombine (very slightly?) faster is to recycle instructions
when possible instead of creating new ones. It's not explicitly stated AFAIK, but we don't
consider this an "InstSimplify". We could, however, make a new layer to house transforms
like this if that makes InstCombine more manageable (just throwing out an idea; not sure
how much opportunity is actually here).
Differential Revision: https://reviews.llvm.org/D31863
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300067
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Dmitry Preobrazhensky [Wed, 12 Apr 2017 14:29:45 +0000 (14:29 +0000)]
[AMDGPU][MC] Corrected ds_wrxchg2* to support two offsets
Fixed bug 28227: https://bugs.llvm.org//show_bug.cgi?id=28227
Reviewers: vpykhtin
Differential Revision: https://reviews.llvm.org/D31808
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300066
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Jonas Paulsson [Wed, 12 Apr 2017 14:25:08 +0000 (14:25 +0000)]
Fix a RUN line in new test.
Use '2>&1 |' and not '|&' to pipe debug output to FileCheck
Hopefully handles a "shell parser error" on
llvm-clang-x86_64-expensive-checks-win
test/Transforms/SLPVectorizer/SystemZ/SLP-cmp-cost-query.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300064
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Serge Pavlov [Wed, 12 Apr 2017 14:13:00 +0000 (14:13 +0000)]
Remove redundant type casts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300063
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Ed Maste [Wed, 12 Apr 2017 13:51:00 +0000 (13:51 +0000)]
Fix detection of backtrace() availability on FreeBSD
On FreeBSD backtrace is not part of libc and depends on libexecinfo
being available. Instead of using manual checks we can use the builtin
CMake module FindBacktrace.cmake to detect availability of backtrace()
in a portable way.
Patch By: Alex Richardson
Differential Revision: https://reviews.llvm.org/D27143
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300062
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Jonas Paulsson [Wed, 12 Apr 2017 13:29:25 +0000 (13:29 +0000)]
[SLPVectorizer] Pass the right type argument to getCmpSelInstrCost()
In getEntryCost(), make the scalar type for a compare instruction that of the
operands, not i1. This is needed in order to call getCmpSelInstrCost() for a
compare in a sensible way, the same way as the LoopVectorizer does.
New test: test/Transforms/SLPVectorizer/SystemZ/SLP-cmp-cost-query.ll
Review: Matthew Simpson
https://reviews.llvm.org/D31601
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300061
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Benjamin Kramer [Wed, 12 Apr 2017 13:26:31 +0000 (13:26 +0000)]
[MachineBlockPlacment] Add an assert to ensure there is no order dependency on DenseMap iteration order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300060
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Benjamin Kramer [Wed, 12 Apr 2017 13:26:28 +0000 (13:26 +0000)]
[MachineBlockPlacement] Clean up data structures a bit.
No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300059
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Jonas Paulsson [Wed, 12 Apr 2017 13:13:15 +0000 (13:13 +0000)]
[LoopVectorizer] Improve handling of branches during cost estimation.
The cost for a branch after vectorization is very different depending on if
the vectorizer will if-convert the block (branch is eliminated), or if
scalarized and predicated blocks will be produced (branch duplicated before
each block). There is also the case of remaining scalar branches, such as the
back-edge branch.
This patch handles these cases differently with TTI based cost estimates.
Review: Matthew Simpson
https://reviews.llvm.org/D31175
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300058
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Igor Breger [Wed, 12 Apr 2017 12:54:54 +0000 (12:54 +0000)]
[GlobalIsel][X86] support G_CONSTANT selection.
Summary: [GlobalISel][X86] support G_CONSTANT selection. Add regbank select tests.
Reviewers: zvi, guyblank
Reviewed By: guyblank
Subscribers: llvm-commits, dberris, rovka, kristof.beyls
Differential Revision: https://reviews.llvm.org/D31974
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300057
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Jonas Paulsson [Wed, 12 Apr 2017 12:41:37 +0000 (12:41 +0000)]
[LoopVectorizer, TTI] New method supportsEfficientVectorElementLoadStore()
Since SystemZ supports vector element load/store instructions, there is no
need for extracts/inserts if a vector load/store gets scalarized.
This patch lets Target specify that it supports such instructions by means of
a new TTI hook that defaults to false.
The use for this is in the LoopVectorizer getScalarizationOverhead() method,
which will with this patch produce a smaller sum for a vector load/store on
SystemZ.
New test: test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll
Review: Adam Nemet
https://reviews.llvm.org/D30680
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300056
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Dmitry Preobrazhensky [Wed, 12 Apr 2017 12:40:19 +0000 (12:40 +0000)]
[AMDGPU][MC] Corrected src0 size for s_cbranch_join
Fix for bug 28159: https://bugs.llvm.org//show_bug.cgi?id=28159
Reviewers: vpykhtin, arsenm
Differential Revision: https://reviews.llvm.org/D31595
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300055
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Jonas Paulsson [Wed, 12 Apr 2017 12:11:41 +0000 (12:11 +0000)]
[SystemZ] Updated test fp-cast.ll
This did not get included in the previous commit for SystemZ cost functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300053
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Jonas Paulsson [Wed, 12 Apr 2017 11:49:08 +0000 (11:49 +0000)]
[SystemZ] TargetTransformInfo cost functions implemented.
getArithmeticInstrCost(), getShuffleCost(), getCastInstrCost(),
getCmpSelInstrCost(), getVectorInstrCost(), getMemoryOpCost(),
getInterleavedMemoryOpCost() implemented.
Interleaved access vectorization enabled.
BasicTTIImpl::getCastInstrCost() improved to check for legal extending loads,
in which case the cost of the z/sext instruction becomes 0.
Review: Ulrich Weigand, Renato Golin.
https://reviews.llvm.org/D29631
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300052
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Krasimir Georgiev [Wed, 12 Apr 2017 11:33:26 +0000 (11:33 +0000)]
[DWARF] Fix compiler warnings in DWARFContext.cpp, NFCi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300051
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Piotr Padlewski [Wed, 12 Apr 2017 11:18:19 +0000 (11:18 +0000)]
[LangRef] fix documentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300050
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Sam Kolton [Wed, 12 Apr 2017 09:36:05 +0000 (09:36 +0000)]
[AMDGPU] SDWA: make pass global
Summary: Remove checks for basic blocks.
Reviewers: vpykhtin, rampitec, arsenm
Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye
Differential Revision: https://reviews.llvm.org/D31935
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300040
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George Rimar [Wed, 12 Apr 2017 08:59:15 +0000 (08:59 +0000)]
[DWARF] - Refactoring of DWARFContextInMemory implementation.
This change is basically relative to D31136, where I initially wanted to
implement some relocations handling optimization which shows it can give
significant boost. Though even without any caching algorithm looks
code can have some cleanup at first.
Refactoring separates out code for taking symbol address, used in relocations
computation.
Differential revision: https://reviews.llvm.org/D31747
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300039
91177308-0d34-0410-b5e6-
96231b3b80d8