Matt Arsenault [Wed, 3 Sep 2014 23:24:31 +0000 (23:24 +0000)]
Don't treat 0 as a special value for int attributes.
Split the get() to not use a default value. This way
attributes can be added that have 0 as a legitimate value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217107
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Kostya Serebryany [Wed, 3 Sep 2014 23:24:18 +0000 (23:24 +0000)]
[asan] fix debug info produced for asan-coverage=2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217106
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Chris Bieneman [Wed, 3 Sep 2014 23:21:18 +0000 (23:21 +0000)]
Enabling LLVM & Clang to be cross-compiled using CMake from a single configuration command line
The basic idea is similar to the existing cross compilation support. A directory must be configured to build host versions of tablegen tools and llvm-config. This directory can be user provided (and configured), or it can be created during the build. During a build the native build directory will be configured and built to supply the tablegen tools used during the build. A user could also explicitly provide the tablegen executables to run on the CMake command line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217105
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David Majnemer [Wed, 3 Sep 2014 23:03:18 +0000 (23:03 +0000)]
IndVarSimplify: Don't let LFTR compare against a poison value
LinearFunctionTestReplace tries to use the *next* indvar to compare
against when possible. However, it may be the case that the calculation
for the next indvar has NUW/NSW flags and that it may only be safely
used inside the loop. Using it in a comparison to calculate the exit
condition could result in observing poison.
This fixes PR20680.
Differential Revision: http://reviews.llvm.org/D5174
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217102
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Chandler Carruth [Wed, 3 Sep 2014 22:48:34 +0000 (22:48 +0000)]
[x86] Teach the new vector shuffle lowering about the simplest of
'insertps' patterns.
This replaces two shuffles with a single insertps in very common cases.
My next patch will extend this to leverage the zeroing capabilities of
insertps which will allow it to be used in a much wider set of cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217100
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Chandler Carruth [Wed, 3 Sep 2014 22:46:44 +0000 (22:46 +0000)]
[x86] Teach the asm comment printing to only print the clarification of
an immediate operand when we don't have instruction-specific comments.
This ensures that instruction-specific comments are attached to the same
line as the instruction which is important for using them to write
readable and maintainable tests. My next commit will just such a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217099
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Kostya Serebryany [Wed, 3 Sep 2014 22:37:37 +0000 (22:37 +0000)]
[asan] add -asan-coverage=3: instrument all blocks and critical edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217098
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David Blaikie [Wed, 3 Sep 2014 21:34:34 +0000 (21:34 +0000)]
unique_ptrify RuntimeDyldImpl::loadObject
I'm not sure this is a particularly helpful API (to pass ownership and
then return it unconditionally) rather than just pass the underlying
object by non-const reference, but this was the original API so I'll
just make it more safe/stable and anyone else is free to adjust that at
their whim, of course.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217081
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Robin Morisset [Wed, 3 Sep 2014 21:29:59 +0000 (21:29 +0000)]
Refactor AtomicExpandPass and add a generic isAtomic() method to Instruction
Summary:
Split shouldExpandAtomicInIR() into different versions for Stores/Loads/RMWs/CmpXchgs.
Makes runOnFunction cleaner (no more redundant checking/casting), and will help moving
the X86 backend to this pass.
This requires a way of easily detecting which instructions are atomic.
I followed the pattern of mayReadFromMemory, mayWriteOrReadMemory, etc.. in making
isAtomic() a method of Instruction implemented by a switch on the opcodes.
Test Plan: make check
Reviewers: jfb
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D5035
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217080
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Benjamin Kramer [Wed, 3 Sep 2014 21:04:12 +0000 (21:04 +0000)]
Make some helpers static or move into the llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217077
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Robin Morisset [Wed, 3 Sep 2014 21:01:03 +0000 (21:01 +0000)]
Use target-dependent emitLeading/TrailingFence instead of the target-independent insertLeading/TrailingFence (in AtomicExpandPass)
Fixes two latent bugs:
- There was no fence inserted before expanded seq_cst load (unsound on Power)
- There was only a fence release before seq_cst stores (again unsound, in particular on Power)
It is not even clear if this is correct on ARM swift processors (where release fences are
DMB ishst instead of DMB ish). This behaviour is currently preserved on ARM Swift
as it is not clear whether it is incorrect. I would love to get documentation stating
whether it is correct or not.
These two bugs were not triggered because Power is not (yet) using this pass, and these
behaviours happen to be (mostly?) working on ARM
(although they completely butchered the semantics of the llvm IR).
See:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-August/075821.html
for an example of the problems that can be caused by the second of these bugs.
I couldn't see a way of fixing these in a completely target-independent way without
adding lots of unnecessary fences on ARM, hence the target-dependent parts of this
patch.
This patch implements the new target-dependent parts only for ARM (the default
of not doing anything is enough for AArch64), other architectures will use this
infrastructure in later patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217076
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Juergen Ributzka [Wed, 3 Sep 2014 20:56:59 +0000 (20:56 +0000)]
[FastISel][tblgen] Rename tblgen generated FastISel functions. NFC.
This is the final round of renaming. This changes tblgen to emit lower-case
function names for FastEmitInst_* and FastEmit_*, and updates all its uses
in the source code.
Reviewed by Eric
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217075
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Juergen Ributzka [Wed, 3 Sep 2014 20:56:52 +0000 (20:56 +0000)]
[FastISel] Rename public visible FastISel functions. NFC.
This commit renames the following public FastISel functions:
LowerArguments -> lowerArguments
SelectInstruction -> selectInstruction
TargetSelectInstruction -> fastSelectInstruction
FastLowerArguments -> fastLowerArguments
FastLowerCall -> fastLowerCall
FastLowerIntrinsicCall -> fastLowerIntrinsicCall
FastEmitZExtFromI1 -> fastEmitZExtFromI1
FastEmitBranch -> fastEmitBranch
UpdateValueMap -> updateValueMap
TargetMaterializeConstant -> fastMaterializeConstant
TargetMaterializeAlloca -> fastMaterializeAlloca
TargetMaterializeFloatZero -> fastMaterializeFloatZero
LowerCallTo -> lowerCallTo
Reviewed by Eric
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217074
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Chandler Carruth [Wed, 3 Sep 2014 20:39:10 +0000 (20:39 +0000)]
[JIT] Add an out-of-line definition for the virtual destructor in
JITEventListener. This used to be in the old JIT (last line of the file)
and everyone just "happened" to pick it up from there. =/ Doh.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217073
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Chandler Carruth [Wed, 3 Sep 2014 20:39:06 +0000 (20:39 +0000)]
[x86] Add an SSE4.1 mode to this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217072
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Eric Christopher [Wed, 3 Sep 2014 20:36:31 +0000 (20:36 +0000)]
Remove resetSubtargetFeatures as it is unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217071
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Eric Christopher [Wed, 3 Sep 2014 20:36:26 +0000 (20:36 +0000)]
Remove unnecessary getTarget call now that the subtarget is cached
on the machine function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217070
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Sanjay Patel [Wed, 3 Sep 2014 20:08:51 +0000 (20:08 +0000)]
house cleaning: "Don’t duplicate function or class name at the beginning of the comment."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217069
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Rafael Espindola [Wed, 3 Sep 2014 20:02:00 +0000 (20:02 +0000)]
Add writeFileWithSystemEncoding to LibLLVMSuppor.
This patch adds to LLVMSupport the capability of writing files with
international characters encoded in the current system encoding. This
is relevant for Windows, where we can either use UTF16 or the current
code page (the legacy Windows international characters). On UNIX, the
file is always saved in UTF8.
This will be used in a patch for clang to thoroughly support response
files creation when calling other tools, addressing PR15171. On
Windows, to correctly support internationalization, we need the
ability to write response files both in UTF16 or the current code
page, depending on the tool we will call. GCC for mingw, for instance,
requires files to be encoded in the current code page. MSVC tools
requires files to be encoded in UTF16.
Patch by Rafael Auler!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217068
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David Blaikie [Wed, 3 Sep 2014 19:57:35 +0000 (19:57 +0000)]
unique_ptrify MCJIT::emitObject
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217067
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David Blaikie [Wed, 3 Sep 2014 19:48:09 +0000 (19:48 +0000)]
unique_ptrify a bunch of stuff through RuntimeDyld::loadObject
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217065
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Chandler Carruth [Wed, 3 Sep 2014 19:39:10 +0000 (19:39 +0000)]
[x86] Make this test check everything for both SSE2 and AVX1 modes,
using a common 'all' prefix for the common test output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217063
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Juergen Ributzka [Wed, 3 Sep 2014 18:46:45 +0000 (18:46 +0000)]
[FastISel] Some long overdue spring cleaning of FastISel.
Things got a little bit messy over the years and it is time for a little bit
spring cleaning.
This first commit is focused on the FastISel base class itself. It doxyfies all
comments, C++11fies the code where it makes sense, renames internal methods to
adhere to the coding standard, and clang-formats the files.
Reviewed by Eric
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217060
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Alexey Samsonov [Wed, 3 Sep 2014 18:11:48 +0000 (18:11 +0000)]
Fix downcasts of unaligned empty/tombstone DenseMap keys for DenseMap<AssertVH<T>, Foo>.
Test Plan: llvm regression test suite
Reviewers: chandlerc, rsmith
Reviewed By: rsmith
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D4976
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217058
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Lang Hames [Wed, 3 Sep 2014 18:04:10 +0000 (18:04 +0000)]
Add a regression test to sanity check the PBQP allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217057
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David Blaikie [Wed, 3 Sep 2014 17:59:23 +0000 (17:59 +0000)]
unique_ptrify IRObjectFile::createIRObjectFile
I took a guess at the changes to the gold plugin, because that doesn't
seem to build by default for me. Not sure what dependencies I might be
missing for that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217056
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Juergen Ributzka [Wed, 3 Sep 2014 17:58:10 +0000 (17:58 +0000)]
[FastISel][AArch64] Move unconditional branch handling into 'SelectBranch'. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217054
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Chris Bieneman [Wed, 3 Sep 2014 17:50:14 +0000 (17:50 +0000)]
Removing static initializer from Debug.cpp by converting to a ManagedStatic.
This is part of our larger effort to remove static initializers from LLVM libraries.
Reviewed by: chandlerc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217053
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David Blaikie [Wed, 3 Sep 2014 17:41:05 +0000 (17:41 +0000)]
unique_ptrify MachOUniversalBinary::create
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217052
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Sanjay Patel [Wed, 3 Sep 2014 17:40:30 +0000 (17:40 +0000)]
Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802).
The SLP vectorizer should propagate IR-level optimization hints/flags (nsw, nuw, exact, fast-math)
when converting scalar instructions into vectors. But this isn't a simple copy - we need to take
the intersection (the logical 'and') of the sets of flags on the scalars.
The solution is further complicated because we can have non-uniform (non-SIMD) vector ops after:
http://reviews.llvm.org/D4015
http://llvm.org/viewvc/llvm-project?view=revision&revision=211339
The vast majority of changed files are existing tests that were not propagating IR flags, but I've
also added a new test file for focused testing of IR flag possibilities.
Differential Revision: http://reviews.llvm.org/D5172
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217051
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Rafael Espindola [Wed, 3 Sep 2014 17:31:46 +0000 (17:31 +0000)]
Pass a && to getLazyBitcodeModule.
This forces callers to use std::move when calling it. It is somewhat odd to have
code with std::move that doesn't always move, but it is also odd to have code
without std::move that sometimes moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217049
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David Blaikie [Wed, 3 Sep 2014 17:31:25 +0000 (17:31 +0000)]
Ensure ErrorOr cannot implicitly invoke explicit ctors of the underlying type.
An unpleasant surprise while migrating unique_ptrs (see changes in
lib/Object): ErrorOr<int*> was implicitly convertible to
ErrorOr<std::unique_ptr<int>>.
Keep the explicit conversions otherwise it's a pain to convert
ErrorOr<int*> to ErrorOr<std::unique_ptr<int>>.
I'm not sure if there should be more SFINAE on those explicit ctors (I
could check if !is_convertible && is_constructible, but since the ctor
has to be called explicitly I don't think there's any need to disable
them when !is_constructible - they'll just fail anyway. It's the
converting ctors that can create interesting ambiguities without proper
SFINAE). I had to SFINAE the explicit ones because otherwise they'd be
ambiguous with the implicit ones in an explicit context, so far as I
could tell.
The converting assignment operators seemed unnecessary (and similarly
buggy/dangerous) - just rely on the converting ctors to convert to the
right type for assignment instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217048
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Rafael Espindola [Wed, 3 Sep 2014 16:16:02 +0000 (16:16 +0000)]
Update to not depend on "llvm-objdump -d -symbolize".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217047
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Tom Stellard [Wed, 3 Sep 2014 15:22:41 +0000 (15:22 +0000)]
R600/SI: Add a pattern for i64 and in a branch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217041
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Tom Stellard [Wed, 3 Sep 2014 15:22:39 +0000 (15:22 +0000)]
R600/SI: Fix typos in SIInstrInfo::areLoadsFromSameBasePtr()
This fixes a crash in the OpenCV test:
ImgprocWarpResizeArea/Resize.Mat/16
There is no test case for this, because this failure depends on a
specific ordering of the loads, which could easily change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217040
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Renato Golin [Wed, 3 Sep 2014 13:32:08 +0000 (13:32 +0000)]
Check-label a bit more specific
Sometimes, the .file could be reordered and it'd identify the ldr in the filename as a bad match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217037
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Joerg Sonnenberger [Wed, 3 Sep 2014 13:17:03 +0000 (13:17 +0000)]
Document !and. Fix !shl and friends -- they provide binary operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217034
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Iain Sandoe [Wed, 3 Sep 2014 13:12:16 +0000 (13:12 +0000)]
Fix configure and make build of llvm examples.
Replaced link component 'jit' with 'mcjit'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217032
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Benjamin Kramer [Wed, 3 Sep 2014 11:41:21 +0000 (11:41 +0000)]
Add override to overriden virtual methods, remove virtual keywords.
No functionality change. Changes made by clang-tidy + some manual cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217028
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Yaron Keren [Wed, 3 Sep 2014 08:22:30 +0000 (08:22 +0000)]
Fix ambiguous call to make_unique and clang-format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217023
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Alexander Potapenko [Wed, 3 Sep 2014 07:37:20 +0000 (07:37 +0000)]
Follow-up for r217020: actually commit the fix for PR20800,
revert the accidentally committed changes to LLVMSymbolize.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217021
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Alexander Potapenko [Wed, 3 Sep 2014 07:11:34 +0000 (07:11 +0000)]
Fix PR20800: correctly calculate the offset of the subq instruction when generating compact unwind info.
This CL replaces the constant DarwinX86AsmBackend.PushInstrSize with a method
that lets the backend account for different sizes of "push %reg" instruction
sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217020
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Juergen Ributzka [Wed, 3 Sep 2014 07:07:10 +0000 (07:07 +0000)]
Reapply r216805 "[MachineCombiner][AArch64] Use the correct register class for MADD, SUB, and OR.""
This reapplies r216805 with a fix to a copy-past error, which resulted in an
incorrect register class.
Original commit message:
Select the correct register class for the various instructions that are
generated when combining instructions and constrain the registers to the
appropriate register class.
This fixes rdar://problem/
18183707.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217019
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Craig Topper [Wed, 3 Sep 2014 06:07:54 +0000 (06:07 +0000)]
Recommit "Use unique_ptr to manager FilterChooser ownership."
Just using insert of a pair this time instead of emplace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217018
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Craig Topper [Wed, 3 Sep 2014 05:59:23 +0000 (05:59 +0000)]
Revert "Use unique_ptr to manager FilterChooser ownership."
std::map::emplace isn't working on some of the bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217015
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Craig Topper [Wed, 3 Sep 2014 05:49:09 +0000 (05:49 +0000)]
Use unique_ptr to manager FilterChooser ownership.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217014
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Craig Topper [Wed, 3 Sep 2014 05:49:07 +0000 (05:49 +0000)]
Implement move constructor and remove copy constructor for Filter objects in FixedLenDecoderEmitter. Also remove unused copy constructor of FilterChooser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217013
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Lang Hames [Wed, 3 Sep 2014 05:42:52 +0000 (05:42 +0000)]
[MCJIT] Make llvm-rtdyld process eh_frame sections in -verify mode (accidentally
left out of r217010).
Also remove a crufty debugging output statement that was accidentally left in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217011
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Lang Hames [Wed, 3 Sep 2014 05:01:46 +0000 (05:01 +0000)]
[MCJIT] Add a 'section_addr' builtin function to RuntimeDyldChecker.
The syntax of the new builtin is 'section_addr(<filename>, <section-name>)'
(similar to the stub_addr builtin, but without a symbol name). It returns the
base address of the given section in the given object file. This builtin makes
it possible to refer to the contents of sections that cannot contain symbols,
e.g. sections added by the linker itself, like __eh_frame.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217010
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Juergen Ributzka [Wed, 3 Sep 2014 01:38:36 +0000 (01:38 +0000)]
[FastISel][AArch64] Add target-dependent instruction selection for Add/Sub.
There is already target-dependent instruction selection support for Adds/Subs to
support compares and the intrinsics with overflow check. This takes advantage of
the existing infrastructure to also support Add/Sub, which allows the folding of
immediates, sign-/zero-extends, and shifts.
This fixes rdar://problem/
18207316.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217007
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Nick Kledzik [Wed, 3 Sep 2014 01:34:58 +0000 (01:34 +0000)]
Fix test case to match correct llvm-objdump output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217006
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Nick Kledzik [Wed, 3 Sep 2014 01:12:52 +0000 (01:12 +0000)]
Replace printf with outs() <<
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217005
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Sanjay Patel [Wed, 3 Sep 2014 01:06:50 +0000 (01:06 +0000)]
Change name of copyFlags() to copyIRFlags(). Add convenience method for logical 'and' of all flags. NFC.
Adding 'IR' to the names in an attempt to be less ambiguous about the flags we're dealing with here.
The 'and' method is needed by the SLPVectorizer (PR20802) and possibly other passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217004
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Hal Finkel [Wed, 3 Sep 2014 00:06:47 +0000 (00:06 +0000)]
[CFLAA] Remove one final initializer list
Maybe MSVC will be happy now...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217000
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Hal Finkel [Tue, 2 Sep 2014 23:50:01 +0000 (23:50 +0000)]
[CFLAA] And even more MSVC fixes
Remove a couple more initializer lists and constexpr dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216998
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Chris Bieneman [Tue, 2 Sep 2014 23:48:13 +0000 (23:48 +0000)]
Cleaning up remaining static initializers in Signals.inc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216996
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Hal Finkel [Tue, 2 Sep 2014 23:29:48 +0000 (23:29 +0000)]
[CFLAA] More cleanup for MSVC
Remove more initializer lists, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216994
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Pete Cooper [Tue, 2 Sep 2014 23:23:34 +0000 (23:23 +0000)]
Tablegen scheduling models don't reference empty itineraries as of r216919, so don't emit the unused itinerary variables
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216993
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Hal Finkel [Tue, 2 Sep 2014 22:52:30 +0000 (22:52 +0000)]
[CFLAA] No initializer lists for MSVC
MSVC 2012 does not understand initializer lists; remove them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216991
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Renato Golin [Tue, 2 Sep 2014 22:46:18 +0000 (22:46 +0000)]
Missing test from r216989
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216990
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Renato Golin [Tue, 2 Sep 2014 22:45:13 +0000 (22:45 +0000)]
Only emit movw on ARMv6T2+
Fix PR18364.
Patch by Dimitry Andric.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216989
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David Blaikie [Tue, 2 Sep 2014 22:41:07 +0000 (22:41 +0000)]
unique_ptrify passing the TargetMachine to ExecutionEngine::MCJITCtor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216988
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Hal Finkel [Tue, 2 Sep 2014 22:36:58 +0000 (22:36 +0000)]
[CFLAA] Remove tautological comparison
Fixes this (the warning is right, the unsigned value is not negative):
lib/Analysis/StratifiedSets.h:689:53: warning: comparison of unsigned expression >= 0 is always true [-Wtautological-compare]
bool inbounds(StratifiedIndex N) const { return N >= 0 && N < Links.size(); }
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216987
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Juergen Ributzka [Tue, 2 Sep 2014 22:33:57 +0000 (22:33 +0000)]
[FastISel][AArch64] Use the target-dependent selection code for shifts first.
This uses the target-dependent selection code for shifts first, which allows us
to create better code for shifts with immediates and sign-/zero-extend folding.
Vector type are not handled yet and the code falls back to target-independent
instruction selection for these cases.
This fixes rdar://problem/
17907920.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216985
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Juergen Ributzka [Tue, 2 Sep 2014 22:33:53 +0000 (22:33 +0000)]
[FastISel][AArch64] Use a new helper function to determine if a value type is supported. NFCI.
FastISel for AArch64 supports more value types than are actually legal. Use a
dedicated helper function to reflect this.
It is very similar to the isLoadStoreTypeLegal function, with the exception
that vector types are not supported yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216984
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Sean Silva [Tue, 2 Sep 2014 22:32:20 +0000 (22:32 +0000)]
Nuke MCAnalysis.
The code is buggy and barely tested. It is also mostly boilerplate.
(This includes MCObjectDisassembler, which is the interface to that
functionality)
Following an IRC discussion with Jim Grosbach, it seems sensible to just
nuke the whole lot of functionality, and dig it up from VCS if
necessary (I hope not!).
All of this stuff appears to have been added in a huge patch dump (look
at the timeframe surrounding e.g. r182628) where almost every patch
seemed to be untested and not reviewed before being committed.
Post-review responses to the patches were never addressed. I don't think
any of it would have passed pre-commit review.
I doubt anyone is depending on this, since this code appears to be
extremely buggy. In limited testing that Michael Spencer and I did, we
couldn't find a single real-world object file that wouldn't crash the
CFG reconstruction stuff. The symbolizer stuff has O(n^2) behavior and
so is not much use to anyone anyway. It seemed simpler to remove them as
a whole. Most of this code is boilerplate, which is the only way it was
able to scrape by 60% coverage.
HEADSUP: Modules folks, some files I nuked were referenced from
include/llvm/module.modulemap; I just deleted the references. Hopefully
that is the right fix (one was a FIXME though!).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216983
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Eric Christopher [Tue, 2 Sep 2014 22:28:02 +0000 (22:28 +0000)]
Reinstate "Nuke the old JIT."
Approved by Jim Grosbach, Lang Hames, Rafael Espindola.
This reinstates commits r215111, 215115, 215116, 215117, 215136.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216982
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Hal Finkel [Tue, 2 Sep 2014 22:26:06 +0000 (22:26 +0000)]
[CFLAA] LLVM_CONSTEXPR -> const
The number is just a constant, and this should make MSVC happy (or at least
happier).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216981
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Robin Morisset [Tue, 2 Sep 2014 22:16:29 +0000 (22:16 +0000)]
[X86] Allow atomic operations using immediates to avoid using a register
The only valid lowering of atomic stores in the X86 backend was mov from
register to memory. As a result, storing an immediate required a useless copy
of the immediate in a register. Now these can be compiled as a simple mov.
Similarily, adding/and-ing/or-ing/xor-ing an
immediate to an atomic location (but through an atomic_store/atomic_load,
not a fetch_whatever intrinsic) can now make use of an 'add $imm, x(%rip)'
instead of using a register. And the same applies to inc/dec.
This second point matches the first issue identified in
http://llvm.org/bugs/show_bug.cgi?id=17281
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216980
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Hal Finkel [Tue, 2 Sep 2014 22:13:00 +0000 (22:13 +0000)]
[CFLAA] constexpr -> LLVM_CONSTEXPR
Attempt to fix the MSVC build by not using constexpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216979
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Hal Finkel [Tue, 2 Sep 2014 22:12:54 +0000 (22:12 +0000)]
Add pass-manager flags to use CFL AA
Add -use-cfl-aa (and -use-cfl-aa-in-codegen) to add CFL AA in the default pass
managers (for easy testing).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216978
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Hans Wennborg [Tue, 2 Sep 2014 21:51:35 +0000 (21:51 +0000)]
BumpPtrAllocator: use uintptr_t when aligning addresses to avoid undefined behaviour
In theory, alignPtr() could push a pointer beyond the end of the current slab, making
comparisons with that pointer undefined behaviour. Use an integer type to avoid this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216973
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Kostya Serebryany [Tue, 2 Sep 2014 21:46:51 +0000 (21:46 +0000)]
[asan] Assign a low branch weight to ASan's slow path, patch by Jonas Wagner. This speeds up asan (at least on SPEC) by 1%-5% or more. Also fix lint in dfsan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216972
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Matt Arsenault [Tue, 2 Sep 2014 21:45:50 +0000 (21:45 +0000)]
R600/SI: Relax some ordering in tests.
This will help with enabling misched
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216971
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Hal Finkel [Tue, 2 Sep 2014 21:43:13 +0000 (21:43 +0000)]
Add a CFL Alias Analysis implementation
This provides an implementation of CFL alias analysis (including some
supporting data structures). Currently, we don't have any extremely fancy
features, sans some interprocedural analysis (i.e. no field sensitivity, etc.),
and we do best sitting behind BasicAA + TBAA. In such a configuration, we take
~0.6-0.8% of total compile time, and give ~7-8% NoAlias responses to queries
TBAA and BasicAA couldn't answer when bootstrapping LLVM. In testing this on
other projects, we've seen up to 10.5% of queries dropped by BasicAA+TBAA
answered with NoAlias by this algorithm.
Patch by George Burgess IV (with minor modifications by me -- mostly adapting
some BasicAA tests), thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216970
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Juergen Ributzka [Tue, 2 Sep 2014 21:32:54 +0000 (21:32 +0000)]
[FastISel][AArch64] Move over to target-dependent instruction selection only.
This change moves FastISel for AArch64 to target-dependent instruction selection
only. This change replicates the existing target-independent behavior, therefore
there are no changes to the unit tests or new tests.
Future changes will take advantage of this change and update functionality
and unit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216955
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Juergen Ributzka [Tue, 2 Sep 2014 21:07:44 +0000 (21:07 +0000)]
[FastISel] Provide the option to skip target-independent instruction selection. NFC.
This allows the target to disable target-independent instruction selection and
jump directly into the target-dependent instruction selection code.
This can be beneficial for targets, such as AArch64, which could emit much
better code, but never got a chance to do so, because the target-independent
instruction selector was able to find an instruction sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216947
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Yi Jiang [Tue, 2 Sep 2014 21:00:39 +0000 (21:00 +0000)]
Generate extract for in-tree uses if the use is scalar operand in vectorized instruction. radar://
18144665
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216946
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Matt Arsenault [Tue, 2 Sep 2014 20:43:07 +0000 (20:43 +0000)]
R600/SI: Fix hardcoded register numbers in test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216944
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Sanjay Patel [Tue, 2 Sep 2014 20:24:47 +0000 (20:24 +0000)]
Refactor LowerFABS and LowerFNEG into one function (x86) (NFC)
We duplicate ~30 lines of code to lower FABS and FNEG for x86, so this patch combines them into one function.
No functional change intended, so no additional test cases. Test-suite behavior is unchanged.
Differential Revision: http://reviews.llvm.org/D5064
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216942
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Matt Arsenault [Tue, 2 Sep 2014 20:20:43 +0000 (20:20 +0000)]
cmake: Don't reject unknown cpp files that start with .
Some editors create hidden file backups in the same
directory as the file, and it's annoying when cmake
errors on them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216941
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Robin Morisset [Tue, 2 Sep 2014 20:17:52 +0000 (20:17 +0000)]
Fix MemoryDependenceAnalysis in cases where QueryInstr is a CmpXchg or a AtomicRMW
Summary:
MemoryDependenceAnalysis is currently cautious when the QueryInstr is an atomic
load or store, but I forgot to check for atomic cmpxchg/atomicrmw. This patch
is a way of fixing that, and making it less brittle (i.e. no risk that I forget
another possible kind of atomic, even if the IR ends up changing in the future),
by adding a fallback checking mayReadOrWriteFromMemory.
Thanks to Philip Reames for finding this bug and suggesting this solution in
http://reviews.llvm.org/D4845
Sadly, I don't see how to add a test for this, since the passes depending on
MemoryDependenceAnalysis won't trigger for an atomic rmw anyway. Does anyone
see a way for testing it?
Test Plan: none possible at first sight
Reviewers: jfb, reames
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D5019
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216940
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Sanjay Patel [Tue, 2 Sep 2014 20:03:00 +0000 (20:03 +0000)]
Fix a logic bug when copying fast-math flags.
"Setting" does not equal "copying". This bug has sat dormant for 2 reasons:
1. The unit test was not adequate.
2. Every current user of the "copyFastMathFlags" API is operating on a new instruction.
(ie, all existing fast-math flags are off). If you copy flags to an existing
instruction that has some flags on already, you will not necessarily turn them off
as expected.
I uncovered this bug while trying to implement a fix for PR20802.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216939
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Rafael Espindola [Tue, 2 Sep 2014 19:49:39 +0000 (19:49 +0000)]
Add a note about AuroraUX to the release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216938
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Matt Arsenault [Tue, 2 Sep 2014 19:18:52 +0000 (19:18 +0000)]
Add note to documentation about machine node chains.
I've been assuming chain operands were always the first operand,
since the documentation says this. I was confused about why they
were missing after instruction selection. Apparently the convention
changes to using the last operand for MachineSDNodes and I've never
noticed before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216934
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Matt Arsenault [Tue, 2 Sep 2014 19:12:31 +0000 (19:12 +0000)]
R600/SI: Add failing testcase.
This is broken when 64-bit add is only partially
moved to the VALU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216933
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Matt Arsenault [Tue, 2 Sep 2014 19:02:53 +0000 (19:02 +0000)]
Fix interference caused by fmul 2, x -> fadd x, x
If an fmul was introduced by lowering, it wouldn't be folded
into a multiply by a constant since the earlier combine would
have replaced the fmul with the fadd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216932
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Nick Kledzik [Tue, 2 Sep 2014 18:50:24 +0000 (18:50 +0000)]
Code review tweaks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216931
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Matt Arsenault [Tue, 2 Sep 2014 18:47:54 +0000 (18:47 +0000)]
Fix crash when looking up the addrspace of GEPs with vector types
Patch by Björn Steinbrink
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216930
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Reid Kleckner [Tue, 2 Sep 2014 18:42:44 +0000 (18:42 +0000)]
CodeGen: Handle va_start in the entry block
Also fix a small copy-paste bug in X86ISelLowering where Chain should
have been used in place of DAG.getEntryToken().
Fixes PR20828.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216929
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Matt Arsenault [Tue, 2 Sep 2014 18:33:51 +0000 (18:33 +0000)]
Fix comment and unnecessary check for FP build_vectors.
This was copy-paste from the integer version, but
FP build_vectors don't truncate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216928
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David Blaikie [Tue, 2 Sep 2014 18:21:06 +0000 (18:21 +0000)]
unique_ptrify LTOCodeGenerator::NativeObjectFile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216927
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David Blaikie [Tue, 2 Sep 2014 18:13:54 +0000 (18:13 +0000)]
unique_ptrify the result of SpecialCaseList::create
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216925
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Hans Wennborg [Tue, 2 Sep 2014 18:00:00 +0000 (18:00 +0000)]
MCSchedule.h: fix VS2012 build after r216919
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216924
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David Blaikie [Tue, 2 Sep 2014 17:49:23 +0000 (17:49 +0000)]
unique_ptrify FileOutputBuffer::FileOutputBuffer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216921
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Alexey Samsonov [Tue, 2 Sep 2014 17:49:16 +0000 (17:49 +0000)]
Fix left shifts of negative values in MipsDisassembler.
This bug was reported by UBSan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216920
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Pete Cooper [Tue, 2 Sep 2014 17:43:54 +0000 (17:43 +0000)]
Change MCSchedModel to be a struct of statically initialized data.
This removes static initializers from the backends which generate this data, and also makes this struct match the other Tablegen generated structs in behaviour
Reviewed by Andy Trick and Chandler C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216919
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David Blaikie [Tue, 2 Sep 2014 17:42:01 +0000 (17:42 +0000)]
unique_ptrify PBQPBuilder::build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216918
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Alexey Samsonov [Tue, 2 Sep 2014 17:38:34 +0000 (17:38 +0000)]
Fix signed integer overflow in PPCInstPrinter.
This bug was reported by UBSan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216917
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David Blaikie [Tue, 2 Sep 2014 17:29:51 +0000 (17:29 +0000)]
Correct unique_ptr passing in MCObjectDisassembler::setFallbackRegion
Rather than passing by lvalue reference, pass by value to ensure that
the caller provides an rvalue (and use move assignment, rather than
release+reset, to assign to the member variable)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216916
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