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Bruno Cardoso Lopes [Wed, 22 Jul 2015 21:30:16 +0000 (21:30 +0000)]
[PeepholeOptimizer] Refactor optimizeUncoalescable logic
Reapply r242294.
- Create a new CopyRewriter for Uncoalescable copy-like instructions
- Change the ValueTracker to return a ValueTrackerResult
This makes optimizeUncoalescable looks more like optimizeCoalescable and
use the CopyRewritter infrastructure.
This is also the preparation for looking up into PHI nodes in the
ValueTracker.
rdar://problem/
20404526
Differential Revision: http://reviews.llvm.org/D11195
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242940
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JF Bastien [Wed, 22 Jul 2015 21:28:15 +0000 (21:28 +0000)]
WebAssembly: basic bitcode → assembly CodeGen test
Summary:
Add a basic CodeGen bitcode test which (for now) only prints out the function name and nothing else. The current code merely implements the basic needed for the test run to not crash / assert. Getting to that point required:
- Basic InstPrinter.
- Basic AsmPrinter.
- DiagnosticInfoUnsupported (not strictly required, but nice to have, duplicated from AMDGPU/BPF's ISelLowering).
- Some SP and register setup in WebAssemblyTargetLowering.
- Basic LowerFormalArguments.
- GenInstrInfo.
- Placeholder LowerFormalArguments.
- Placeholder CanLowerReturn and LowerReturn.
- Basic DAGToDAGISel::Select, which requiresGenDAGISel.inc as well as GET_INSTRINFO_ENUM with GenInstrInfo.inc.
- Remove WebAssemblyFrameLowering::determineCalleeSaves and rely on default.
- Implement WebAssemblyFrameLowering::hasFP, same as AArch64's implementation.
Follow-up patches will implement a real AsmPrinter, which will require adding MI opcodes specific to WebAssembly.
Reviewers: sunfish
Subscribers: aemerson, jfb, llvm-commits
Differential Revision: http://reviews.llvm.org/D11369
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242939
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Alex Lorenz [Wed, 22 Jul 2015 21:15:11 +0000 (21:15 +0000)]
MIR Serialization: Serialize the machine instruction's debug location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242938
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Yaron Keren [Wed, 22 Jul 2015 21:11:17 +0000 (21:11 +0000)]
Rename RunCallBacksToRun to llvm::sys::RunSignalHandlers
And expose it in Signals.h, allowing clients to call it directly,
possibly LLVMErrorHandler which currently calls RunInterruptHandlers
but not RunSignalHandlers, thus for example not printing the stack
backtrace on Unixish OSes. On Windows it does happen because
RunInterruptHandlers ends up calling the callbacks as well via
Cleanup(). This difference in behaviour and code structures in
*/Signals.inc should be patched in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242936
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Anthony Pesch [Wed, 22 Jul 2015 21:10:45 +0000 (21:10 +0000)]
Improve merging of stores from static constructors in GlobalOpt
Summary:
While working on a project I wound up generating a fairly large lookup table (10k entries) of callbacks inside of a static constructor. Clang was taking upwards of ~10 minutes to compile the lookup table. I generated a smaller test case (http://www.inolen.com/static_initializer_test.ll) that, after running with -ftime-report, pointed fingers at GlobalOpt and MemCpyOptimizer.
Running globalopt took around ~9 minutes. The slowdown came from how GlobalOpt merged stores from static constructors individually into the global initializer in EvaluateStaticConstructor. For each store it discovered and wanted to commit, it would copy the existing global initializer and then merge in the individual store. I changed this so that stores are now grouped by global, and sorted from most significant to least significant by their GEP indexes (e.g. a store to GEP 0, 0 comes before GEP 0, 0, 1). With this representation, the existing initializer can be copied and all new stores merged into it in a single pass.
With this patch and http://reviews.llvm.org/D11198, the lookup table that was taking ~10 minutes to compile now compiles in around 5 seconds. I've ran 'make check' and the test-suite, which all passed.
I'm not really sure who to tag as a reviewer, Lang mentioned that Chandler may be appropriate.
Reviewers: chandlerc, nlewycky
Subscribers: nlewycky, llvm-commits
Differential Revision: http://reviews.llvm.org/D11200
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242935
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Alex Lorenz [Wed, 22 Jul 2015 21:07:04 +0000 (21:07 +0000)]
MIR Parser: Extract the MDNode parsing code into a separate method. NFC.
This change would allow the machine instruction parser to reuse this method when
parsing the metadata node for the machine instruction's debug location property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242934
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Hans Wennborg [Wed, 22 Jul 2015 20:46:11 +0000 (20:46 +0000)]
Fix -Wextra-semi warnings.
Patch by Eugene Zelenko!
Differential Revision: http://reviews.llvm.org/D11400
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242930
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Rafael Espindola [Wed, 22 Jul 2015 19:34:26 +0000 (19:34 +0000)]
Fix fetching the symbol table of a thin archive.
We were trying to read it as an external file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242926
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Yaron Keren [Wed, 22 Jul 2015 19:01:14 +0000 (19:01 +0000)]
De-duplicate Unix & Windows CallBacksToRun
Move CallBacksToRun into the common Signals.cpp, create RunCallBacksToRun()
and use these in both Unix/Signals.inc and Windows/Signals.inc.
Lots of potential code to be merged here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242925
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Anthony Pesch [Wed, 22 Jul 2015 18:50:10 +0000 (18:50 +0000)]
Test commit, added blank line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242923
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Chad Rosier [Wed, 22 Jul 2015 18:41:57 +0000 (18:41 +0000)]
Simplify switch as all cases other than default return true. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242922
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Rafael Espindola [Wed, 22 Jul 2015 18:29:39 +0000 (18:29 +0000)]
Identify thin archives as archives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242921
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Yaron Keren [Wed, 22 Jul 2015 18:23:51 +0000 (18:23 +0000)]
Remove C++98 workaround in llvm::sys::DontRemoveFileOnSignal()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242920
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Renato Golin [Wed, 22 Jul 2015 18:21:39 +0000 (18:21 +0000)]
[Release] Allow release testers to disable certain components
Not all components build correctly on all targets and the release
script had no way to disable them other than editing the script locally.
This change provides a way to disable the test-suite, compiler-rt and
the libraries, as well as allowing you to re-run on the same directory
without checking out all sources again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242919
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Alex Lorenz [Wed, 22 Jul 2015 17:58:46 +0000 (17:58 +0000)]
MIR Serialization: Serialize the metadata machine operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242916
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Quentin Colombet [Wed, 22 Jul 2015 16:34:37 +0000 (16:34 +0000)]
[ARM] Make the frame lowering code ready for shrink-wrapping.
Shrink-wrapping can now be tested on ARM with -enable-shrink-wrap.
Related to <rdar://problem/
20821730>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242908
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Rafael Espindola [Wed, 22 Jul 2015 14:09:20 +0000 (14:09 +0000)]
Delete ELFEntityIterator. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242901
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Asaf Badouh [Wed, 22 Jul 2015 12:00:43 +0000 (12:00 +0000)]
[X86][AVX512] add reduce/range/scalef/rndScale
include encoding and intrinsics
Differential Revision: http://reviews.llvm.org/D11222
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242896
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Chandler Carruth [Wed, 22 Jul 2015 11:57:28 +0000 (11:57 +0000)]
[GMR] Add a flag to enable GlobalsModRef in the normal compilation
pipeline.
Even before I started improving its runtime, it was already crazy fast
once the call graph exists, and if we can get it to be conservatively
correct, will still likely catch a lot of interesting and useful cases.
So it may well be useful to enable by default.
But more importantly for me, this should make it easier for me to test
that changes aren't breaking it in fundamental ways by enabling it for
normal builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242895
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Benjamin Kramer [Wed, 22 Jul 2015 11:54:19 +0000 (11:54 +0000)]
[dsymutil] Remove extra semicolon. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242894
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Chandler Carruth [Wed, 22 Jul 2015 11:47:54 +0000 (11:47 +0000)]
[GMR] Switch from std::set to SmallPtrSet. NFC.
This almost certainly doesn't matter in some deep sense, but std::set is
essentially always going to be slower here. Now the alias query should
be essentially constant time instead of having to chase the set tree
each time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242893
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Chandler Carruth [Wed, 22 Jul 2015 11:43:24 +0000 (11:43 +0000)]
[GMR] Only look in the associated allocs map for an underlying value if
it wasn't one of the indirect globals (which clearly cannot be an
allocation function call). Also only do a single lookup into this map
instead of two. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242892
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Chandler Carruth [Wed, 22 Jul 2015 11:36:09 +0000 (11:36 +0000)]
[GMR] Switch to a DenseMap and clean up the iteration loop. NFC.
Since we have to iterate this map not that infrequently, we should use
a map that is efficient for iteration. It is also almost certainly much
faster for lookups as well. There is more to do in terms of reducing the
wasted overhead of GMR's runtime though. Not sure how much is worthwhile
though.
The loop improvements should hopefully address the code review that
Duncan gave when he saw this code as I moved it around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242891
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Chandler Carruth [Wed, 22 Jul 2015 11:22:29 +0000 (11:22 +0000)]
Fix a -Winconsistent-missing-override failure in the .intel_syntax
patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242890
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Michael Kuperstein [Wed, 22 Jul 2015 11:19:22 +0000 (11:19 +0000)]
Fix test from r242886 to use the right triple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242889
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Chandler Carruth [Wed, 22 Jul 2015 11:10:41 +0000 (11:10 +0000)]
[PM/AA] Try to fix libc++ build bots which require the type used in
std::list to be complete by hoisting the entire definition into the
class. Ugly, but hopefully works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242888
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Michael Kuperstein [Wed, 22 Jul 2015 10:49:44 +0000 (10:49 +0000)]
[X86] Add .intel_syntax noprefix directive to intel-syntax x86 asm output
Patch by: michael.zuckerman@intel.com
Differential Revision: http://reviews.llvm.org/D11223
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242886
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Michael Kuperstein [Wed, 22 Jul 2015 10:29:29 +0000 (10:29 +0000)]
Fix mem2reg to correctly handle allocas only used in a single block
Currently, a load from an alloca that is used in as single block and is not preceded
by a store is replaced by undef. This is not always correct if the single block is
inside a loop.
Fix the logic so that:
1) If there are no stores in the block, replace the load with an undef, as before.
2) If there is a store (regardless of where it is in the block w.r.t the load), bail
out, and let the rest of mem2reg handle this alloca.
Patch by: gil.rapaport@intel.com
Differential Revision: http://reviews.llvm.org/D11355
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242884
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Kuba Brecka [Wed, 22 Jul 2015 10:25:38 +0000 (10:25 +0000)]
[asan] Improve moving of non-instrumented allocas
In r242510, non-instrumented allocas are now moved into the first basic block. This patch limits that to only move allocas that are present *after* the first instrumented one (i.e. only move allocas up). A testcase was updated to show behavior in these two cases. Without the patch, an alloca could be moved down, and could cause an invalid IR.
Differential Revision: http://reviews.llvm.org/D11339
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242883
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Chandler Carruth [Wed, 22 Jul 2015 09:52:54 +0000 (09:52 +0000)]
[PM/AA] Remove all of the dead AliasAnalysis pointers being threaded
through APIs that are no longer necessary now that the update API has
been removed.
This will make changes to the AA interfaces significantly less
disruptive (I hope). Either way, it seems like a really nice cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242882
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Chandler Carruth [Wed, 22 Jul 2015 09:49:59 +0000 (09:49 +0000)]
[PM/AA] Remove the last of the legacy update API from AliasAnalysis as
part of simplifying its interface and usage in preparation for porting
to work with the new pass manager.
Note that this will likely expose that we have dead arguments, members,
and maybe even pass requirements for AA. I'll be cleaning those up in
seperate patches. This just zaps the actual update API.
Differential Revision: http://reviews.llvm.org/D11325
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242881
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Chandler Carruth [Wed, 22 Jul 2015 09:44:54 +0000 (09:44 +0000)]
[PM/AA] Switch to an early-exit. NFC. This was split out of another
change because the diff is *useless*. I assure you, I just switched to
early-return in this function.
Cleanup in preparation for my next commit, as requested in code review!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242880
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Chandler Carruth [Wed, 22 Jul 2015 09:34:18 +0000 (09:34 +0000)]
[PM/AA] Put the 'final' keyword in the correct place. And actually
succeed at compiling my change before committing it too!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242879
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Chandler Carruth [Wed, 22 Jul 2015 09:27:58 +0000 (09:27 +0000)]
[PM/AA] Replace the only use of the AliasAnalysis::deleteValue API (in
GlobalsModRef) with CallbackVHs that trigger the same behavior.
This is technically more expensive, but in benchmarking some LTO runs,
it seems unlikely to even be above the noise floor. The only way I was
able to measure the performance of GMR at all was to run nothing else
but this one analysis on a linked clang bitcode file. The call graph
analysis still took 5x more time than GMR, and this change at most made
GMR 2% slower (this is well within the noise, so its hard for me to be
sure that this is an actual change). However, in a real LTO run over the
same bitcode, the GMR run takes so little time that the pass timers
don't measure it.
With this, I can remove the last update API from the AliasAnalysis
interface, but I'll actually remove the interface hook point in
a follow-up commit.
Differential Revision: http://reviews.llvm.org/D11324
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242878
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Elena Demikhovsky [Wed, 22 Jul 2015 08:56:00 +0000 (08:56 +0000)]
AVX-512: Added intrinsics for VCVT* instructions.
All SKX forms. All VCVT instructions for float/double/int/long types.
Differential Revision: http://reviews.llvm.org/D11343
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242877
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Chen Li [Wed, 22 Jul 2015 05:26:29 +0000 (05:26 +0000)]
[LoopUnswitch] Code refactoring to separate trivial loop unswitch and non-trivial loop unswitch in processCurrentLoop()
Summary: The current code in LoopUnswtich::processCurrentLoop() mixes trivial loop unswitch and non-trivial loop unswitch together. It goes over all basic blocks in the loop and checks if a condition is trivial or non-trivial unswitch condition. However, trivial unswitch condition can only occur in the loop header basic block (where it controls whether or not the loop does something at all). This refactoring separate trivial loop unswitch and non-trivial loop unswitch. Before going over all basic blocks in the loop, it checks if the loop header contains a trivial unswitch condition. If so, unswitch it. Otherwise, go over all blocks like before but don't check trivial condition any more since they are not possible to be in the other blocks. This code has no functionality change.
Reviewers: meheff, reames, broune
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11276
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242873
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Jingyue Wu [Wed, 22 Jul 2015 04:16:52 +0000 (04:16 +0000)]
[BranchFolding] do not iterate the aliases of virtual registers
Summary:
MCRegAliasIterator only works for physical registers. So, do not run it
on virtual registers.
With this issue fixed, we can resurrect the BranchFolding pass in NVPTX
backend.
Reviewers: jholewinski, bkramer
Subscribers: henryhu, meheff, llvm-commits, jholewinski
Differential Revision: http://reviews.llvm.org/D11174
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242871
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Chandler Carruth [Wed, 22 Jul 2015 03:32:42 +0000 (03:32 +0000)]
[SROA] Fix a nasty pile of bugs to do with big-endian, different alloca
types and loads, loads or stores widened past the size of an alloca,
etc.
This started off with a bug report about big-endian behavior with
bitfields and loads and stores to a { i32, i24 } struct. An initial
attempt to fix this was sent for review in D10357, but that didn't
really get to the root of the problem.
The core issue was that canConvertValue and convertValue in SROA were
handling different bitwidth integers by doing a zext of the integer. It
wouldn't do a trunc though, only a zext! This would in turn lead SROA to
form an i24 load from an i24 alloca, zext it to i32, and then use it.
This would at least produce the wrong value for big-endian systems.
One of my many false starts here was to correct the computation for
big-endian systems by shifting. But this doesn't actually work because
the original code has a 64-bit store to the entire 8 bytes, and a 32-bit
load of the last 4 bytes, and because the alloc size is 8 bytes, we
can't lose that last (least significant if bigendian) byte! The real
problem here is that we're forming an i24 load in SROA which is actually
not sufficiently wide to load all of the necessary bits here. The source
has an i32 load, and SROA needs to form that as well.
The straightforward way to do this is to disable the zext logic in
canConvertValue and convertValue, forcing us to actually load all
32-bits. This seems like a really good change, but it in turn breaks
several other parts of SROA.
First in the chain of knock-on failures, we had places where we were
doing integer-widening promotion even though some of the integer loads
or stores extended *past the end* of the alloca's memory! There was even
a comment about preventing this, but it only prevented the case where
the type had a different bit size from its store size. So I added checks
to handle the cases where we actually have a widened load or store and
to avoid trying to special integer widening promotion in those cases.
Second, we actually rely on the ability to promote in the face of loads
past the end of an alloca! This is important so that we can (for
example) speculate loads around PHI nodes to do more promotion. The bits
loaded are garbage, but as long as they aren't used and the alignment is
suitable high (which it wasn't in the test case!) this is "fine". And we
can't stop promoting here, lots of things stop working well if we do. So
we need to add specific logic to handle the extension (and truncation)
case, but *only* where that extension or truncation are over bytes that
*are outside the alloca's allocated storage* and thus totally bogus to
load or store.
And of course, once we add back this correct handling of extension or
truncation, we need to correctly handle bigendian systems to avoid
re-introducing the exact bug that started us off on this chain of misery
in the first place, but this time even more subtle as it only happens
along speculated loads atop a PHI node.
I've ported an existing test for PHI speculation to the big-endian test
file and checked that we get that part correct, and I've added several
more interesting big-endian test cases that should help check that we're
getting this correct.
Fun times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242869
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Richard Smith [Wed, 22 Jul 2015 01:30:58 +0000 (01:30 +0000)]
SetVector: add reverse_iterator support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242865
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Alexey Samsonov [Tue, 21 Jul 2015 22:51:55 +0000 (22:51 +0000)]
[Fuzzer] Rely on $PATH expansion instead of hardcoding paths in tests. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242851
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Alexey Samsonov [Tue, 21 Jul 2015 22:51:49 +0000 (22:51 +0000)]
[Fuzzer] Clearly separate regular and DFSan tests. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242850
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Frederic Riss [Tue, 21 Jul 2015 22:41:43 +0000 (22:41 +0000)]
[dsymutil] Implement ODR uniquing for C++ code.
This optimization allows the DWARF linker to reuse definition of
types it has emitted in previous CUs rather than reemitting them
in each CU that references them. The size and link time gains are
huge. For example when linking the DWARF for a debug build of
clang, this generates a ~150M dwarf file instead of a ~700M one
(the numbers date back a bit and must not be totally accurate
these days).
As with all the other parts of the llvm-dsymutil codebase, the
goal is to keep bit-for-bit compatibility with dsymutil-classic.
The code is littered with a lot of FIXMEs that should be
addressed once we can get rid of the compatibilty goal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242847
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Alex Lorenz [Tue, 21 Jul 2015 22:28:27 +0000 (22:28 +0000)]
MIR Serialization: Start serializing the CFI operands with .cfi_def_cfa_offset.
This commit begins serialization of the CFI index machine operands by
serializing one kind of CFI instruction - the .cfi_def_cfa_offset instruction.
Reviewers: Duncan P. N. Exon Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242845
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Nick Lewycky [Tue, 21 Jul 2015 21:56:26 +0000 (21:56 +0000)]
Fix a performance problem in memcpyopt by removing a linear scan over ranges when inserting a new range. No functionality change intended. Patch by Anthony Pesch!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242843
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Jingyue Wu [Tue, 21 Jul 2015 21:50:39 +0000 (21:50 +0000)]
[MDA] change BlockScanLimit into a command line option.
Summary:
In the benchmark (https://github.com/vetter/shoc) we are researching,
the duplicated load is not eliminated because MemoryDependenceAnalysis
hit the BlockScanLimit. This patch change it into a command line option
instead of a hardcoded value.
Patched by Xuetian Weng.
Test Plan: test/Analysis/MemoryDependenceAnalysis/memdep-block-scan-limit.ll
Reviewers: jingyue, reames
Subscribers: reames, llvm-commits
Differential Revision: http://reviews.llvm.org/D11366
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242842
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Bruno Cardoso Lopes [Tue, 21 Jul 2015 21:45:42 +0000 (21:45 +0000)]
[AsmPrinter] Check for valid constants in handleIndirectSymViaGOTPCRel
Check whether BaseCst is valid before extracting a GlobalValue.
This fixes PR24163.
Patch by David Majnemer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242840
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Michael J. Spencer [Tue, 21 Jul 2015 21:40:33 +0000 (21:40 +0000)]
[Object][ELF] Handle files with no section header string table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242839
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Bill Schmidt [Tue, 21 Jul 2015 21:40:17 +0000 (21:40 +0000)]
[PPC64LE] More vector swap optimization TLC
This makes one substantive change and a few stylistic changes to the
VSX swap optimization pass.
The substantive change is to permit LXSDX and LXSSPX instructions to
participate in swap optimization computations. The previous change to
insert a swap following a SUBREG_TO_REG widening operation makes this
almost trivial.
I experimented with also permitting STXSDX and STXSSPX instructions.
This can be done using similar techniques: we could insert a swap
prior to a narrowing COPY operation, and then permit these stores to
participate. I prototyped this, but discovered that the pattern of a
narrowing COPY followed by an STXSDX does not occur in any of our
test-suite code. So instead, I added commentary indicating that this
could be done.
Other TLC:
- I changed SH_COPYSCALAR to SH_COPYWIDEN to more clearly indicate
the direction of the copy.
- I factored the insertion of swap instructions into a separate
function.
Finally, I added a new test case to check that the scalar-to-vector
loads are working properly with swap optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242838
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Alex Lorenz [Tue, 21 Jul 2015 21:23:08 +0000 (21:23 +0000)]
MIR Parser: Reuse the function 'lexName' when lexing global value tokens. NFC.
This commit refactors the function 'maybeLexGlobalValue' so that now it reuses
the function 'lexName' when lexing a named global value token.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242837
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Sanjoy Das [Tue, 21 Jul 2015 20:59:22 +0000 (20:59 +0000)]
[SCEV][NFC] Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242834
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Rafael Espindola [Tue, 21 Jul 2015 20:50:53 +0000 (20:50 +0000)]
Don't iterate over the program headers in the constructor of ELFFile.
Not every program needs this information.
In particular, it is necessary and sufficient for a static linker to scan the
section table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242833
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Tanya Lattner [Tue, 21 Jul 2015 20:14:20 +0000 (20:14 +0000)]
Remove oversight group. Replace with LLVM Foundation Board of Directors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242830
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Rafael Espindola [Tue, 21 Jul 2015 19:57:43 +0000 (19:57 +0000)]
Make printValue a member function.
We were already passing 3 values it can get from ELFDumper.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242829
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Rafael Espindola [Tue, 21 Jul 2015 19:38:32 +0000 (19:38 +0000)]
Remove always null argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242828
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Philip Reames [Tue, 21 Jul 2015 19:04:38 +0000 (19:04 +0000)]
[RewriteStatepointsForGC] minor style cleanup
Use a named lambda for readability, common some code, remove a stale comments, and use llvm style variable names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242827
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David Blaikie [Tue, 21 Jul 2015 18:37:12 +0000 (18:37 +0000)]
Add some utilities to iterator_range for trimming a range and constructing one from a container.
To be used in clang in a follow-up commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242823
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Rafael Espindola [Tue, 21 Jul 2015 18:20:17 +0000 (18:20 +0000)]
Remove getDynamicSymbolName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242821
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Rafael Espindola [Tue, 21 Jul 2015 18:04:29 +0000 (18:04 +0000)]
Remove getStaticSymbolName.
Every user now keeps track of the correct string table to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242818
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Chad Rosier [Tue, 21 Jul 2015 17:47:56 +0000 (17:47 +0000)]
Follow up to r242810. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242812
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Chad Rosier [Tue, 21 Jul 2015 17:42:04 +0000 (17:42 +0000)]
[AArch64] Simplify the passing of arguments. NFC.
This is setup for future work planned for the AArch64 Load/Store Opt pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242810
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Reid Kleckner [Tue, 21 Jul 2015 17:40:14 +0000 (17:40 +0000)]
Re-land 242726 to use RAII to do cleanup
The LooksLikeCodeInBug11395() codepath was returning without clearing
the ProcessedAllocas cache.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242809
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Philip Reames [Tue, 21 Jul 2015 17:18:03 +0000 (17:18 +0000)]
[RewriteStatepointsForGC] Hoist some code out of a loop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242808
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Arnold Schwaighofer [Tue, 21 Jul 2015 17:07:07 +0000 (17:07 +0000)]
MergeFunc: Transfer the callee's attributes when replacing a direct caller
We insert a bitcast which obfuscates the getCalledFunction for the utility
function which looks up attributes from the called function. Loosing ABI
changing parameter attributes is a bad thing.
rdar://
21516488
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242807
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Alex Lorenz [Tue, 21 Jul 2015 16:59:53 +0000 (16:59 +0000)]
MIR Serialization: Serialize the external symbol machine operands.
Reviewers: Duncan P. N. Exon Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242806
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Philip Reames [Tue, 21 Jul 2015 16:51:17 +0000 (16:51 +0000)]
[RewriteStatepointsForGC] Delete trivial code
A bit more code cleanup: delete some a trivial true assertion and supporting code, remove a redundant cast, and use count in assertions where feasible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242805
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Rafael Espindola [Tue, 21 Jul 2015 16:50:57 +0000 (16:50 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242804
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Alex Lorenz [Tue, 21 Jul 2015 16:50:35 +0000 (16:50 +0000)]
IR: Extract a function 'printLLVMNameWithoutPrefix' from 'PrintLLVMName'. NFC.
This commit extracts the code that prints out a name of an LLVM value without a
prefix from a function 'PrintLLVMName' into a publicly accessible function named
'printLLVMNameWithoutPrefix'.
This change would be useful for MIR serialization, as it would allow the MIR
printer to reuse this function to print out the names of the external symbol
machine operands.
Reviewers: Duncan P. N. Exon Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242803
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Rafael Espindola [Tue, 21 Jul 2015 16:42:01 +0000 (16:42 +0000)]
Remove always false parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242802
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Rafael Espindola [Tue, 21 Jul 2015 16:40:14 +0000 (16:40 +0000)]
Use range loop. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242801
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Rafael Espindola [Tue, 21 Jul 2015 16:26:21 +0000 (16:26 +0000)]
Replace the last uses of ELF::getSymbolName in llvm-readobj.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242798
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Sanjay Patel [Tue, 21 Jul 2015 16:09:58 +0000 (16:09 +0000)]
fix formatting; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242796
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Rafael Espindola [Tue, 21 Jul 2015 16:05:53 +0000 (16:05 +0000)]
Use helper function. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242795
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Rafael Espindola [Tue, 21 Jul 2015 16:02:10 +0000 (16:02 +0000)]
llvm-readobj: use the associated string table to print symbols. NFI.
This just removes some cases that require ELFFile to eagerly parse the ELF
file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242794
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Chris Bieneman [Tue, 21 Jul 2015 15:53:09 +0000 (15:53 +0000)]
[CMake] Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly specified.
One part of my refactoring from r242705 is untenable due to how CMake caches variables. There is no way other than caching to allow variables to be set in one directory and globally readable, but we really don't want to cache the temporary value marking that a directory has already been included.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242793
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Nico Weber [Tue, 21 Jul 2015 15:48:53 +0000 (15:48 +0000)]
Revert 242726, it broke ASan on OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242792
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Rafael Espindola [Tue, 21 Jul 2015 14:45:56 +0000 (14:45 +0000)]
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242789
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Rafael Espindola [Tue, 21 Jul 2015 13:48:41 +0000 (13:48 +0000)]
Simplify printing the soname. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242786
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Rafael Espindola [Tue, 21 Jul 2015 13:42:38 +0000 (13:42 +0000)]
Add missing c++ marker to .h file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242784
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Karthik Bhat [Tue, 21 Jul 2015 08:52:23 +0000 (08:52 +0000)]
Constfold trunc,rint,nearbyint,ceil and floor using APFloat
A patch by Chakshu Grover!
This patch allows constfolding of trunc,rint,nearbyint,ceil and floor intrinsics using APFloat class.
Differential Revision: http://reviews.llvm.org/D11144
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242763
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Igor Breger [Tue, 21 Jul 2015 07:11:28 +0000 (07:11 +0000)]
AVX512 : Implemented VPMADDUBSW and VPMADDWD instruction ,
Added tests for intrinsics and encoding.
Differential Revision: http://reviews.llvm.org/D11351
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242761
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Eric Fiselier [Tue, 21 Jul 2015 04:25:13 +0000 (04:25 +0000)]
[LIT] Fix discovery.py test once again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242758
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Akira Hatanaka [Tue, 21 Jul 2015 01:42:02 +0000 (01:42 +0000)]
[ARM] Define subtarget feature "reserve-r9", which is used to decide
whether register r9 should be reserved.
This recommits r242737, which broke bots because the number of subtarget
features went over the limit of 64.
This change is needed because we cannot use a backend option to set
cl::opt "arm-reserve-r9" when doing LTO.
Out-of-tree projects currently using cl::opt option "-arm-reserve-r9" to
reserve r9 should make changes to add subtarget feature "reserve-r9" to
the IR.
rdar://problem/
21529937
Differential Revision: http://reviews.llvm.org/D11320
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242756
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Akira Hatanaka [Tue, 21 Jul 2015 01:39:22 +0000 (01:39 +0000)]
Bump the size of FeatureBitset up to 96-bits.
This should avoid exceeding the maximum size when I add another subtarget
feature to ARM's subtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242754
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Rafael Espindola [Tue, 21 Jul 2015 01:01:29 +0000 (01:01 +0000)]
Don't do a walk over the dynamic table just to find DT_SONAME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242752
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Philip Reames [Tue, 21 Jul 2015 00:49:55 +0000 (00:49 +0000)]
[RewriteStatepointsForGC] Minor code cleanup [NFC]
We can use builders to simplify part of the code and we only check for the existance of the metadata value; this enables us to delete some redundant code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242751
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Andrew Wilkins [Tue, 21 Jul 2015 00:46:23 +0000 (00:46 +0000)]
[cmake] pass GO_EXECUTABLE to llgo-go
Summary:
When calling llgo-go from the llvm_add_go_executable
cmake function, specify $GO_EXECUTABLE as the go
command to call. Without this, llgo-go searches $PATH
which may be inconsistent with $GO_EXECUTABLE.
Reviewers: pcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11290
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242749
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Chris Bieneman [Tue, 21 Jul 2015 00:44:47 +0000 (00:44 +0000)]
[CMake] Fixing inconsistency caused by copy-pasta.
This will actually fix the PR 24194.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242748
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Matt Arsenault [Tue, 21 Jul 2015 00:40:08 +0000 (00:40 +0000)]
AMDGPU: Set isMoveImm on s_movk_i32
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242747
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Chris Bieneman [Tue, 21 Jul 2015 00:39:53 +0000 (00:39 +0000)]
[CMake] Fixing a problem with external projects that aren't getting enabled properly.
This should address PR 24194, and some builedbot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242746
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Matthias Braun [Tue, 21 Jul 2015 00:19:01 +0000 (00:19 +0000)]
ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code
Re-apply of r241928 which had to be reverted because of the r241926
revert.
This commit factors out common code from MergeBaseUpdateLoadStore() and
MergeBaseUpdateLSMultiple() and introduces a new function
MergeBaseUpdateLSDouble() which merges adds/subs preceding/following a
strd/ldrd instruction into an strd/ldrd instruction with writeback where
possible.
Differential Revision: http://reviews.llvm.org/D10676
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242743
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Matthias Braun [Tue, 21 Jul 2015 00:18:59 +0000 (00:18 +0000)]
ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2
Re-apply r241926 with an additional check that r13 and r15 are not used
for LDRD/STRD. See http://llvm.org/PR24190. This also already includes
the fix from r241951.
Differential Revision: http://reviews.llvm.org/D10623
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242742
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Akira Hatanaka [Mon, 20 Jul 2015 23:51:12 +0000 (23:51 +0000)]
Revert r242737.
This caused builds to fail with the following error message:
error:Too many subtarget features! Bump MAX_SUBTARGET_FEATURES.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242740
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Akira Hatanaka [Mon, 20 Jul 2015 23:21:30 +0000 (23:21 +0000)]
[ARM] Define subtarget feature "reserve-r9", which is used to decide
whether register r9 should be reserved.
This change is needed because we cannot use a backend option to set
cl::opt "arm-reserve-r9" when doing LTO.
Out-of-tree projects currently using cl::opt option "-arm-reserve-r9" to
reserve r9 should make changes to add subtarget feature "reserve-r9" to
the IR.
rdar://problem/
21529937
Differential Revision: http://reviews.llvm.org/D11320
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242737
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Matthias Braun [Mon, 20 Jul 2015 23:17:20 +0000 (23:17 +0000)]
Revert "ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2"
This reverts commit r241926. This caused http://llvm.org/PR24190
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242735
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Matthias Braun [Mon, 20 Jul 2015 23:17:16 +0000 (23:17 +0000)]
Revert "ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code"
This reverts commit r241928. This caused http://llvm.org/PR24190
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242734
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Matthias Braun [Mon, 20 Jul 2015 23:17:14 +0000 (23:17 +0000)]
Revert "ARM: Use SpecificBumpPtrAllocator to fix leak introduced in r241920"
This reverts commit r241951. It caused http://llvm.org/PR24190
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242733
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Matthias Braun [Mon, 20 Jul 2015 23:11:42 +0000 (23:11 +0000)]
AArch64: Restrict macroop fusion heuristics to cyclone.
Even though this is just some hinting for the scheduler it doesn't make
sense to do that unless you know the target can perform the fusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242732
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JF Bastien [Mon, 20 Jul 2015 22:51:32 +0000 (22:51 +0000)]
Targets: commonize some stack realignment code
This patch does the following:
* Fix FIXME on `needsStackRealignment`: it is now shared between multiple targets, implemented in `TargetRegisterInfo`, and isn't `virtual` anymore. This will break out-of-tree targets, silently if they used `virtual` and with a build error if they used `override`.
* Factor out `canRealignStack` as a `virtual` function on `TargetRegisterInfo`, by default only looks for the `no-realign-stack` function attribute.
Multiple targets duplicated the same `needsStackRealignment` code:
- Aarch64.
- ARM.
- Mips almost: had extra `DEBUG` diagnostic, which the default implementation now has.
- PowerPC.
- WebAssembly.
- x86 almost: has an extra `-force-align-stack` option, which the default implementation now has.
The default implementation of `needsStackRealignment` used to just return `false`. My current patch changes the behavior by simply using the above shared behavior. This affects:
- AMDGPU
- BPF
- CppBackend
- MSP430
- NVPTX
- Sparc
- SystemZ
- XCore
- Out-of-tree targets
This is a breaking change! `make check` passes.
The only implementation of the `virtual` function (besides the slight different in x86) was Hexagon (which did `MF.getFrameInfo()->getMaxAlignment() > 8`), and potentially some out-of-tree targets. Hexagon now uses the default implementation.
`needsStackRealignment` was being overwritten in `<Target>GenRegisterInfo.inc`, to return `false` as the default also did. That was odd and is now gone.
Reviewers: sunfish
Subscribers: aemerson, llvm-commits, jfb
Differential Revision: http://reviews.llvm.org/D11160
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242727
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Reid Kleckner [Mon, 20 Jul 2015 22:49:44 +0000 (22:49 +0000)]
Don't try to instrument allocas used by outlined SEH funclets
Summary:
Arguments to llvm.localescape must be static allocas. They must be at
some statically known offset from the frame or stack pointer so that
other functions can access them with localrecover.
If we ever want to instrument these, we can use more indirection to
recover the addresses of these local variables. We can do it during
clang irgen or with the asan module pass.
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11307
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242726
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Rafael Espindola [Mon, 20 Jul 2015 22:41:44 +0000 (22:41 +0000)]
Remove duplicated code.
Both ELFObjectFile and ELFFile had an implementation of getLoadName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242725
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