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Sanjoy Das [Wed, 15 Jun 2016 05:35:14 +0000 (05:35 +0000)]
Don't force SP-relative addressing for statepoints
Summary:
... when the offset is not statically known.
Prioritize addresses relative to the stack pointer in the stackmap, but
fallback gracefully to other modes of addressing if the offset to the
stack pointer is not a known constant.
Patch by Oscar Blumberg!
Reviewers: sanjoy
Subscribers: llvm-commits, majnemer, rnk, sanjoy, thanm
Differential Revision: http://reviews.llvm.org/D21259
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272756
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Amaury Sechet [Wed, 15 Jun 2016 05:14:29 +0000 (05:14 +0000)]
Add support for callsite in the new C API for attributes
Summary: The second consumer of attributes.
Reviewers: Wallbraker, whitequark, echristo, rafael, jyknight
Subscribers: mehdi_amini
Differential Revision: http://reviews.llvm.org/D21266
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272754
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Sanjoy Das [Wed, 15 Jun 2016 04:37:50 +0000 (04:37 +0000)]
[SCEV] clang-format some sections
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272753
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Sanjoy Das [Wed, 15 Jun 2016 04:37:47 +0000 (04:37 +0000)]
[SCEV] Change the interface for SolveQuadraticEquation; NFC
Use Optional<T> to denote the absence of a solution, not
SCEVCouldNotCompute. This makes the usage of SolveQuadraticEquation
somewhat simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272752
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Tom Stellard [Wed, 15 Jun 2016 03:09:39 +0000 (03:09 +0000)]
AMDGPU/SI: Correctly encode constant expressions
Summary:
We we have an MCConstantExpr, we can encode it directly into the instruction
instead of emitting fixups.
Reviewers: artem.tamazov, vpykhtin, SamWot, nhaustov, arsenm
Subscribers: arsenm, llvm-commits, kzhuravl
Differential Revision: http://reviews.llvm.org/D21236
Change-Id: I88b3edf288d48e65c5d705fc4850d281f8e36948
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272750
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Xinliang David Li [Wed, 15 Jun 2016 03:03:30 +0000 (03:03 +0000)]
[MBP] add comments and bug fix
Document the new parameter and threshod computation
model. Also fix a bug when the threshold parameter
is set to be different from the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272749
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Tom Stellard [Wed, 15 Jun 2016 02:54:14 +0000 (02:54 +0000)]
AMDGPU/AsmParser: Add support for parsing symbol operands
Summary:
We can now reference symbols directly in operands, like this:
s_mov_b32 s0, global
Reviewers: artem.tamazov, vpykhtin, SamWot, nhaustov
Subscribers: arsenm, llvm-commits, kzhuravl
Differential Revision: http://reviews.llvm.org/D21038
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272748
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Dan Liew [Wed, 15 Jun 2016 01:40:02 +0000 (01:40 +0000)]
[LibFuzzer] Fix ``FuzzerMutate.ShuffleBytes2`` unit test on OSX.
The ``FuzzerMutate.ShuffleBytes2`` unit test was failing on
OSX due to the implementation of ``std::random_shuffle()``
being different between libcxx and libstdc++.
@kcc has decided (see http://reviews.llvm.org/D21218) it is acceptable
for there to be different mutation behavior on different platforms so
this commit just adjusts the test to perform the minimum number of
iterations (that is a power of 2) to see all the mutations the unit test
is looking for.
Differential Revision: http://reviews.llvm.org/D21359
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272743
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Michael Kuperstein [Wed, 15 Jun 2016 00:35:26 +0000 (00:35 +0000)]
Recommit [LV] Enable vectorization of loops where the IV has an external use
r272715 broke libcxx because it did not correctly handle cases where the
last iteration of one IV is the second-to-last iteration of another.
Original commit message:
Vectorizing loops with "escaping" IVs has been disabled since r190790, due to
PR17179. This re-enables it, with support for external use of both
"post-increment" (last iteration) and "pre-increment" (second-to-last iteration)
IVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272742
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Matt Arsenault [Wed, 15 Jun 2016 00:25:09 +0000 (00:25 +0000)]
Make DetectDeadLanes preserve CFG
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272740
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David Majnemer [Wed, 15 Jun 2016 00:19:56 +0000 (00:19 +0000)]
[LoopUnroll] Don't crash trying to unroll loop with EH pad exit
We do not support splitting cleanuppad or catchswitches. This is
problematic for passes which assume that a loop is in loop simplify
form (the loop would have a dedicated exit block instead of sharing it).
While it isn't great that we don't support this for cleanups, we still
cannot make loop-simplify form an assertable precondition because
indirectbr will also disable these sorts of CFG cleanups.
This fixes PR28132.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272739
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David Majnemer [Wed, 15 Jun 2016 00:19:52 +0000 (00:19 +0000)]
[CodeView] Don't emit debuginfo for imported symbols
Emitting symbol information requires us to have a definition for the
symbol. A symbol reference is insufficient.
This fixes PR28123.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272738
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David Majnemer [Wed, 15 Jun 2016 00:19:09 +0000 (00:19 +0000)]
Remove the ScalarReplAggregates pass
Nearly all the changes to this pass have been done while maintaining and
updating other parts of LLVM. LLVM has had another pass, SROA, which
has superseded ScalarReplAggregates for quite some time.
Differential Revision: http://reviews.llvm.org/D21316
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272737
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Matt Arsenault [Wed, 15 Jun 2016 00:11:01 +0000 (00:11 +0000)]
AMDGPU: Run pointer optimization passes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272736
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Peter Collingbourne [Tue, 14 Jun 2016 23:13:15 +0000 (23:13 +0000)]
Verifier: check that functions have at most a single !prof attachment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272734
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Xinliang David Li [Tue, 14 Jun 2016 23:05:46 +0000 (23:05 +0000)]
Fix a test case to match its intention
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272733
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Amaury Sechet [Tue, 14 Jun 2016 22:30:50 +0000 (22:30 +0000)]
Remove unused import. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272731
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Michael Kuperstein [Tue, 14 Jun 2016 22:30:41 +0000 (22:30 +0000)]
Reverting r272715 since it broke libcxx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272730
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Dehao Chen [Tue, 14 Jun 2016 22:27:17 +0000 (22:27 +0000)]
Set machine block placement hot prob threshold for both static and runtime profile.
Summary: With runtime profile, we have more confidence in branch probability, thus during basic block layout, we set a lower hot prob threshold so that blocks can be layouted optimally.
Reviewers: djasper, davidxl
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D20991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272729
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Rui Ueyama [Tue, 14 Jun 2016 22:25:07 +0000 (22:25 +0000)]
[pdbdump] Verify TPI hash for LF_ENUM type records.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272728
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Amaury Sechet [Tue, 14 Jun 2016 22:23:29 +0000 (22:23 +0000)]
Fix list of deprecated C API attribute functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272727
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Vitaly Buka [Tue, 14 Jun 2016 22:09:00 +0000 (22:09 +0000)]
Revert "Enable libFuzzer's afl_driver to append stderr to a file."
Crashes with AddressSanitizer: SEGV on unknown address
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fuzzer/builds/9924/steps/annotate/logs/stdio
This reverts commit r272706.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272726
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Amaury Sechet [Tue, 14 Jun 2016 22:04:16 +0000 (22:04 +0000)]
Rename AttributeSetImpl::NumAttrs and AttributeSetImpl::getNumAttributes to reflect that they work on slots rather than attributes. NFC
Summary: The current naming not only doesn't convey the meaning of what this does, but worse, it convey the wrong meaning. This was a major source of confusion understanding the code, so I'm applying the boy scout rule here and making it better after I leave.
Reviewers: void, bkramer, whitequark
Differential Revision: http://reviews.llvm.org/D21264
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272725
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Davide Italiano [Tue, 14 Jun 2016 21:44:19 +0000 (21:44 +0000)]
[PM] Port WholeProgramDevirt to the new pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272721
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Michael Kuperstein [Tue, 14 Jun 2016 21:27:27 +0000 (21:27 +0000)]
[LV] Enable vectorization of loops where the IV has an external use
Vectorizing loops with "escaping" IVs has been disabled since r190790, due to
PR17179. This re-enables it, with support for external use of both
"post-increment" (last iteration) and "pre-increment" (second-to-last iteration)
IVs.
Differential Revision: http://reviews.llvm.org/D21048
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272715
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Sanjay Patel [Tue, 14 Jun 2016 21:25:46 +0000 (21:25 +0000)]
[x86] add current codegen tests for PR27924
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272714
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Evgeniy Stepanov [Tue, 14 Jun 2016 21:24:13 +0000 (21:24 +0000)]
Add a missing test.
This is a test for r272421: Disable MSan-hostile loop unswitching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272713
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Geoff Berry [Tue, 14 Jun 2016 21:19:40 +0000 (21:19 +0000)]
[MemorySSA] Set CFGOnly correctly for MemorySSAWrapperPass
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D21344
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272712
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Peter Collingbourne [Tue, 14 Jun 2016 21:01:22 +0000 (21:01 +0000)]
IR: Introduce local_unnamed_addr attribute.
If a local_unnamed_addr attribute is attached to a global, the address
is known to be insignificant within the module. It is distinct from the
existing unnamed_addr attribute in that it only describes a local property
of the module rather than a global property of the symbol.
This attribute is intended to be used by the code generator and LTO to allow
the linker to decide whether the global needs to be in the symbol table. It is
possible to exclude a global from the symbol table if three things are true:
- This attribute is present on every instance of the global (which means that
the normal rule that the global must have a unique address can be broken without
being observable by the program by performing comparisons against the global's
address)
- The global has linkonce_odr linkage (which means that each linkage unit must have
its own copy of the global if it requires one, and the copy in each linkage unit
must be the same)
- It is a constant or a function (which means that the program cannot observe that
the unique-address rule has been broken by writing to the global)
Although this attribute could in principle be computed from the module
contents, LTO clients (i.e. linkers) will normally need to be able to compute
this property as part of symbol resolution, and it would be inefficient to
materialize every module just to compute it.
See:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20160509/356401.html
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20160516/356738.html
for earlier discussion.
Part of the fix for PR27553.
Differential Revision: http://reviews.llvm.org/D20348
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272709
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Zachary Turner [Tue, 14 Jun 2016 20:48:36 +0000 (20:48 +0000)]
Resubmit "[pdb] Actually write a PDB to disk from YAML.""
Reviewed By: ruiu
Differential Revision: http://reviews.llvm.org/D21220
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272708
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Vitaly Buka [Tue, 14 Jun 2016 20:42:05 +0000 (20:42 +0000)]
Enable libFuzzer's afl_driver to append stderr to a file.
Summary:
[libFuzzer] Enable afl_driver to append stderr to a user specified file.
Append stderr of afl_driver to the file specified by the environmental variable
AFL_DRIVER_STDERR_DUPLICATE_FILENAME if it is set. This lets users see outputs
on crashes without rerunning crashing test cases (which won't work for crashes
that are difficult to reproduce). Before this patch, stderr would only be sent to afl-fuzz
and users would have no way of seeing it.
Reviewers: llvm-commits, aizatsky, kcc, vitalybuka
Subscribers: vitalybuka
Differential Revision: http://reviews.llvm.org/D21194
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272706
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Tom Stellard [Tue, 14 Jun 2016 20:29:59 +0000 (20:29 +0000)]
AMDGPU/SI: Refactor fixup handling for constant addrspace variables
Summary:
We now use a standard fixup type applying the pc-relative address of
constant address space variables, and we have the GlobalAddress lowering
code add the required 4 byte offset to the global address rather than
doing it as part of the fixup.
This refactoring will make it easier to use the same code for global
address space variables and also simplifies the code.
Re-commit this after fixing a bug where we were trying to use a
reference to a Triple object that had already been destroyed.
Reviewers: arsenm, kzhuravl
Subscribers: arsenm, kzhuravl, llvm-commits
Differential Revision: http://reviews.llvm.org/D21154
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272705
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Amaury Sechet [Tue, 14 Jun 2016 20:27:35 +0000 (20:27 +0000)]
Make sure attribute kind and attributes are named respectively Kind and Attr consistently. Historically they used to be the same the terminology is very confused in the codebase. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272704
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Sanjoy Das [Tue, 14 Jun 2016 20:23:16 +0000 (20:23 +0000)]
[ValueTracking] Calls to @llvm.assume always return
This change teaches llvm::isGuaranteedToTransferExecutionToSuccessor
that calls to @llvm.assume always terminate. Most other relevant
intrinsics should be covered by the "CS.onlyReadsMemory() ||
CS.onlyAccessesArgMemory()" bit but we were missing @llvm.assumes
because we state that it clobbers memory.
Added an LICM test case, but this change is not specific to LICM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272703
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Geoff Berry [Tue, 14 Jun 2016 19:40:10 +0000 (19:40 +0000)]
[TailDuplication] Split up NumInstrDups statistic.
Summary:
Split NumInstrDups statistic into separate added/removed counts to avoid
negative stat being printed as unsigned.
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D21335
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272700
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Dan Liew [Tue, 14 Jun 2016 19:15:13 +0000 (19:15 +0000)]
[LibFuzzer] Disable the ``fuzzer-trace-pc.test`` test on non-linux platforms.
On OSX this test sometimes fails due to the
``LLVMFuzzer-FullCoverageSetTest-TracePC`` program going over the
default 2GiB memory limit. This shouldn't be happening and needs
investigating. For now just disable the test so we can set up an
OSX buildbot.
Differential Revision: http://reviews.llvm.org/D21319
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272696
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Wei Mi [Tue, 14 Jun 2016 18:53:20 +0000 (18:53 +0000)]
[X86] Reduce the width of multiplification when its operands are extended from i8 or i16
For <N x i32> type mul, pmuludq will be used for targets without SSE41, which
often introduces many extra pack and unpack instructions in vectorized loop
body because pmuludq generates <N/2 x i64> type value. However when the operands
of <N x i32> mul are extended from smaller size values like i8 and i16, the type
of mul may be shrunk to use pmullw + pmulhw/pmulhuw instead of pmuludq, which
generates better code. For targets with SSE41, pmulld is supported so no
shrinking is needed.
Differential Revision: http://reviews.llvm.org/D20931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272694
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Zachary Turner [Tue, 14 Jun 2016 18:51:35 +0000 (18:51 +0000)]
Revert "[pdb] Actually write a PDB to disk from YAML."
This reverts commit
879139e1c6577b09df52de56a6bab856a19ed185.
This was committed accidentally when I blindly typed git svn
dcommit instead of the command to generate a patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272693
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Zachary Turner [Tue, 14 Jun 2016 18:49:36 +0000 (18:49 +0000)]
[pdb] Actually write a PDB to disk from YAML.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272692
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George Burgess IV [Tue, 14 Jun 2016 18:12:28 +0000 (18:12 +0000)]
[CFLAA] Tag arguments as escaped instead of unknown.
This patch also includes some refactoring.
Prior to this patch, we tagged all CFLAA attributes as unknown. This is
suboptimal, since it meant that any Value used as an argument would be
considered to alias any other Value that existed.
Now that we have the machinery to tag sets below the set for an
arbitrary value with attributes, it's okay to be less conservative with
arguments. (Specifically, we still tag the set under an argument with
unknown).
Patch by Jia Chen.
Differential Revision: http://reviews.llvm.org/D21262
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272690
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George Burgess IV [Tue, 14 Jun 2016 18:02:27 +0000 (18:02 +0000)]
[CFLAA] Refactor graph-building code. NFC.
This patch refactors CFLAA's graph building code. This makes keeping
track of common state (TargetLibraryInfo, ...) easier.
Patch by Jia Chen.
Differential Revision: http://reviews.llvm.org/D21261
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272688
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Konstantin Zhuravlyov [Tue, 14 Jun 2016 17:20:29 +0000 (17:20 +0000)]
[docs] Update AMDGPU relocation information
- Added new notation for specifying relocation calculation
- Renamed:
- R_AMDGPU_32_LOW -> R_AMDGPU_ABS32_LO
- R_AMDGPU_32_HIGH -> R_AMDGPU_ABS32_HI
- R_AMDGPU_64 -> R_AMDGPU_ABS64
- Added:
- R_AMDGPU_REL32
- R_AMDGPU_REL64
- R_AMDGPU_ABS32
- Updated calculations for relative relocations
Differential Revision: http://reviews.llvm.org/D21215
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272684
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Daniel Sanders [Tue, 14 Jun 2016 16:42:05 +0000 (16:42 +0000)]
[FileCheck] Document --check-prefixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272683
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Hans Wennborg [Tue, 14 Jun 2016 16:05:12 +0000 (16:05 +0000)]
Fix some typos in the Kaleidoscope tutorial (PR28120)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272681
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Tom Stellard [Tue, 14 Jun 2016 15:16:35 +0000 (15:16 +0000)]
Revert "AMDGPU/SI: Refactor fixup handling for constant addrspace variables"
This reverts commit r272675.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272677
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Tom Stellard [Tue, 14 Jun 2016 15:11:01 +0000 (15:11 +0000)]
AMDGPU/SI: Refactor fixup handling for constant addrspace variables
Summary:
We now use a standard fixup type applying the pc-relative address of
constant address space variables, and we have the GlobalAddress lowering
code add the required 4 byte offset to the global address rather than
doing it as part of the fixup.
This refactoring will make it easier to use the same code for global
address space variables and also simplifies the code.
Reviewers: arsenm, kzhuravl
Subscribers: arsenm, kzhuravl, llvm-commits
Differential Revision: http://reviews.llvm.org/D21154
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272675
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Nirav Dave [Tue, 14 Jun 2016 15:09:30 +0000 (15:09 +0000)]
Fix BSS global handling in AsmPrinter
Change EmitGlobalVariable to check final assembler section is in BSS
before using .lcomm/.comm directive. This prevents globals from being
put into .bss erroneously when -data-sections is used.
This fixes PR26570.
Reviewers: echristo, rafael
Subscribers: llvm-commits, mehdi_amini
Differential Revision: http://reviews.llvm.org/D21146
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272674
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Artem Tamazov [Tue, 14 Jun 2016 15:03:59 +0000 (15:03 +0000)]
[AMDGPU][llvm-mc] Predefined symbols to access -mcpu from the assembly source (.option.machine_version...)
The feature allows for conditional assembly etc.
TODO: make those symbols read-only.
Test added.
Differential Revision: http://reviews.llvm.org/D21238
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272673
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Sebastian Pop [Tue, 14 Jun 2016 14:44:05 +0000 (14:44 +0000)]
LoopRotate: restructure code to simplify functions
We move the loop rotate functions in a separate class to avoid passing multiple
parameters to each function. This cleanup will help with further development of
loop rotation. NFC.
Patch written by Aditya Kumar and Sebastian Pop.
Differential Revision: http://reviews.llvm.org/D21311
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272672
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Daniel Sanders [Tue, 14 Jun 2016 14:28:04 +0000 (14:28 +0000)]
[FileCheck] Add --check-prefixes as a shorthand for multiple --check-prefix options.
Summary:
This new alias takes a comma separated list of prefixes which allows
'--check-prefix=A --check-prefix=B --check-prefix=C' to be written as
'--check-prefixes=A,B,C'.
Reviewers: probinson
Subscribers: probinson, llvm-commits, dsanders
Differential Revision: http://reviews.llvm.org/D21293
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272670
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Simon Dardis [Tue, 14 Jun 2016 13:39:43 +0000 (13:39 +0000)]
[mips] Optimize stack pointer adjustments.
Instead of always using addu to adjust the stack pointer when the
size out is of the range of an addiu instruction, use subu so that
a smaller constant can be generated.
This can give savings of ~3 instructions whenever a function has a
a stack frame whose size is out of range of an addiu instruction.
This change may break some naive stack unwinders.
Partially resolves PR/26291.
Thanks to David Chisnall for reporting the issue.
Reviewers: dsanders, vkalintiris
Differential Review: http://reviews.llvm.org/D21321
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272666
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James Molloy [Tue, 14 Jun 2016 13:33:07 +0000 (13:33 +0000)]
[Thumb] Fix off-by-one error in r272007
We can only generate immediates up to #510 with a MOV+ADD, not #511, because there's no such instruction as add #256.
Found by Oliver Stannard and csmith!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272665
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Nicolai Haehnle [Tue, 14 Jun 2016 13:14:53 +0000 (13:14 +0000)]
AMDGPU: mark {exp,log}10{,f,l} library functions as unavailable
Summary:
The SimplifyLibCalls part of InstCombine generates calls to those otherwise.
I wonder if at some point we shouldn't just call disableAllFunctions() and
then enable functions on a whitelist basis...
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96495
Reviewers: arsenm, tstellarAMD
Subscribers: llvm-commits, kzhuravl
Differential Revision: http://reviews.llvm.org/D21282
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272664
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Chad Rosier [Tue, 14 Jun 2016 12:47:18 +0000 (12:47 +0000)]
[MergedLoadStoreMotion] Before quering AA verify the loads are the same.
Basicaa stats show the number of queries in Spec2k6 are reduced by 4540
or ~.67% overall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272661
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Rafael Espindola [Tue, 14 Jun 2016 12:45:33 +0000 (12:45 +0000)]
Add a Musl environment to the triple.
It will be used in clang.
Patch by Lei Zhang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272660
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Simon Dardis [Tue, 14 Jun 2016 11:29:28 +0000 (11:29 +0000)]
[mips][atomics] Fix atomic instruction descriptions and uses.
PR27458 highlights that the MIPS backend does not have well formed
MIR for atomic operations (among other errors).
This patch adds expands and corrects the LL/SC descriptions and uses
for MIPS(64).
Reviewers: dsanders, vkalintiris
Differential Review: http://reviews.llvm.org/D19719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272655
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Daniel Sanders [Tue, 14 Jun 2016 10:13:47 +0000 (10:13 +0000)]
[mips][ias] Implement one N32 case (of two) for .cpsetup.
This patch implements the N32 case where -mno-shared is in effect. The case
where -mshared is in effect will be added later since doing that now requires
additional changes to how we handle %hi(%neg(%gp_rel(foo))) expressions to
emit the three relocations as three relocations (currently only one of the
three would be emitted) which then requires further changes to our MCFixup
handling.
While we could fix both cases together, fixing the -mno-shared case allows us
to fix the ELFCLASS bug (where N32 incorrectly uses ELFCLASS64 instead of
ELFCLASS32) in a way that allows cpsetup.s to check for a correct output instead
of another incorrect output.
Reviewers: sdardis
Subscribers: dsanders, llvm-commits, sdardis
Differential Revision: http://reviews.llvm.org/D21131
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272652
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Simon Pilgrim [Tue, 14 Jun 2016 09:43:38 +0000 (09:43 +0000)]
[X86][SSE4A] Added patterns for nontemporal stores of scalar float/doubles using MOVNTSD/MOVNTSS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272651
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Adam Nemet [Tue, 14 Jun 2016 09:39:01 +0000 (09:39 +0000)]
[LoopVer] Remove an assert that's redundant now. NFC
Ensuring that the PHI are all single-operand is not performed in the
second pass added by the previous pass. This removes the assert from
the first pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272650
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Adam Nemet [Tue, 14 Jun 2016 09:38:54 +0000 (09:38 +0000)]
[LoopVer] Update all existing PHIs in the exit block
We only used to add the edge from the cloned loop to PHIs that
corresponded to values defined by the loop. We need to do this for all
PHIs obviously since we need a PHI operand for each incoming edge.
This includes things like PHIs with a constant value or with values
defined before the original loop (see the testcases).
After the patch the PHIs are added to the exit block in two passes.
In the first pass we ensure there is a single-operand (LCSSA) PHI for
each value defined by the loop.
In the second pass we loop through each (single-operand) PHI and add the
value for the edge from the cloned loop. If the value is defined in the
loop we'll use the cloned instruction from the cloned loop.
Fixes PR28037
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272649
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Simon Dardis [Tue, 14 Jun 2016 09:35:29 +0000 (09:35 +0000)]
[mips] MIPS32/64 itineraries
Itineraries for some pre MIPSR6 and EVA instructions. Some pseudo expanded
instructions are marked as having no scheduling info.
Reviewers: dsanders, vkalintiris
Differential Review: http://reviews.llvm.org/D20418
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272648
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Daniel Sanders [Tue, 14 Jun 2016 09:29:46 +0000 (09:29 +0000)]
[mips][dsp] Fix use without def on DSPCtrl registers read by rddsp intrinsic.
Reviewers: sdardis
Subscribers: dsanders, sdardis, llvm-commits
Differential Revision: http://reviews.llvm.org/D21063
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272647
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Daniel Sanders [Tue, 14 Jun 2016 09:11:33 +0000 (09:11 +0000)]
[mips][msa] copyPhysReg() should not set RegState::Define on result of CTCMSA.
Summary:
The machine verifier reports 'Explicit operand marked as def' when it is
manually specified even though it agrees with the operand info.
Reviewers: sdardis
Subscribers: dsanders, sdardis, llvm-commits
Differential Revision: http://reviews.llvm.org/D21065
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272646
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Diana Picus [Tue, 14 Jun 2016 07:30:20 +0000 (07:30 +0000)]
[SelectionDAG] Remove exit-on-error flag from test (PR27765)
The exit-on-error flag in the ARM test is necessary in order to avoid an
unreachable in the DAGTypeLegalizer, when trying to expand a physical register.
We can also avoid this situation by introducing a bitcast early on, where the
invalid scalar-to-vector conversion is detected.
We also add a test for PowerPC, which goes through a similar code path in the
SelectionDAGBuilder.
Fixes PR27765.
Differential Revision: http://reviews.llvm.org/D21061
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272644
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Igor Breger [Tue, 14 Jun 2016 07:05:10 +0000 (07:05 +0000)]
re-generate the tests using the update_llc_test_checks.py script
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272643
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Davide Italiano [Tue, 14 Jun 2016 03:22:22 +0000 (03:22 +0000)]
[PM] Port Mem2Reg to the new pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272630
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Craig Topper [Tue, 14 Jun 2016 03:13:03 +0000 (03:13 +0000)]
[AVX512] Use AND32ri8 instead of AND32ri when anding with 1 to create single bit masks. This results in a smaller encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272627
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Craig Topper [Tue, 14 Jun 2016 03:13:00 +0000 (03:13 +0000)]
[AVX512] Use MOVZX32 instead of MOVZ16 for loading single v8/v4/v2/v1 masks when KMOVB is not available. This has better behavior with respect to partial register stalls since it won't need to preserve the upper 16-bits of the GPR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272626
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Craig Topper [Tue, 14 Jun 2016 03:12:54 +0000 (03:12 +0000)]
[AVX512] Add patterns for zero-extending a mask that use the def of KMOVW/KMOVB without going through an EXTRACT_SUBREG and a MOVZX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272625
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Craig Topper [Tue, 14 Jun 2016 03:12:48 +0000 (03:12 +0000)]
[AVX512] Add tests for zero extending masks that show an unnecessary movzx instruction. A followup patch will remove that instruction, but adding the tests first to make the more obvious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272624
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Sean Silva [Tue, 14 Jun 2016 02:45:01 +0000 (02:45 +0000)]
Fix for (benign) uninitialized read caught by UBSan bot.
What happened here is that in the new PM there is a bunch of new copying
(actually, moving) and so this reads the HasProfileData member in
situations where it used to not be read.
It used to only be read strictly in the "runOnFunction" method and its
callees, where is *is* initialized (even after my patch).
So this ends up being benign as far as functional behavior of the
compiler (since we set HasProfileData in the "runImpl" method before we
ever make decisions based on it).
It's awesome that UBSan caught this. It highlights one more thing to
watch out for when porting passes.
Sanitizer bot log was:
-- Testing: 17049 tests, 32 threads --
Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: Transforms/JumpThreading/thread-loads.ll (15184 of 17049)
******************** TEST 'LLVM :: Transforms/JumpThreading/thread-loads.ll' FAILED ********************
Script:
--
/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/./bin/opt < /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/JumpThreading/thread-loads.ll -jump-threading -S | /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/./bin/FileCheck /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/JumpThreading/thread-loads.ll
/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/./bin/opt < /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/JumpThreading/thread-loads.ll -passes=jump-threading -S | /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/./bin/FileCheck /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/JumpThreading/thread-loads.ll
--
Exit Code: 2
Command Output (stderr):
--
/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/Transforms/Scalar/JumpThreading.h:90:57: runtime error: load of value 136, which is not a valid value for type 'bool'
#0 0x2c33ba1 in llvm::JumpThreadingPass::JumpThreadingPass(llvm::JumpThreadingPass&&) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/Transforms/Scalar/JumpThreading.h:90:57
#1 0x2bc88e4 in void llvm::PassManager<llvm::Function>::addPass<llvm::JumpThreadingPass>(llvm::JumpThreadingPass) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/IR/PassManager.h:282:40
#2 0x2bb2682 in llvm::PassBuilder::parseFunctionPassName(llvm::PassManager<llvm::Function>&, llvm::StringRef) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/lib/Passes/PassRegistry.def:133:1
#3 0x2bb4914 in llvm::PassBuilder::parseFunctionPassPipeline(llvm::PassManager<llvm::Function>&, llvm::StringRef&, bool, bool) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/lib/Passes/PassBuilder.cpp:489:12
#4 0x2bb6f81 in llvm::PassBuilder::parsePassPipeline(llvm::PassManager<llvm::Module>&, llvm::StringRef, bool, bool) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/lib/Passes/PassBuilder.cpp:674:10
#5 0x986690 in llvm::runPassPipeline(llvm::StringRef, llvm::LLVMContext&, llvm::Module&, llvm::TargetMachine*, llvm::tool_output_file*, llvm::StringRef, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/opt/NewPMDriver.cpp:85:8
#6 0x9af25e in main /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/opt/opt.cpp:468:12
#7 0x7fd7e27dbf44 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21f44)
#8 0x960157 in _start (/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/bin/opt+0x960157)
FileCheck error: '-' is empty.
FileCheck command line: /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/./bin/FileCheck /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/JumpThreading/thread-loads.ll
--
********************
Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Testing Time: 128.90s
********************
Failing Tests (1):
LLVM :: Transforms/JumpThreading/thread-loads.ll
Expected Passes : 16725
Expected Failures : 129
Unsupported Tests : 194
Unexpected Failures: 1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272616
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Sean Silva [Tue, 14 Jun 2016 02:44:55 +0000 (02:44 +0000)]
[PM] Port MemCpyOpt to the new PM.
The need for all these Lookup* functions is just because of calls to
getAnalysis inside methods (i.e. not at the top level) of the
runOnFunction method. They should be straightforward to clean up when
the old PM is gone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272615
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Richard Smith [Tue, 14 Jun 2016 01:31:23 +0000 (01:31 +0000)]
Add missing include from r272607 to fix modules build, and remove out-dated workaround from module map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272612
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Davide Italiano [Tue, 14 Jun 2016 01:23:31 +0000 (01:23 +0000)]
[PM/MergedLoadStoreMotion] Preserve analyses more aggressively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272611
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Davide Italiano [Tue, 14 Jun 2016 01:11:12 +0000 (01:11 +0000)]
Placate bots fixing a typo in AA-pipeline description. Sorry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272608
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Sean Silva [Tue, 14 Jun 2016 00:51:09 +0000 (00:51 +0000)]
Bring back "[PM] Port JumpThreading to the new PM" with a fix
This reverts commit r272603 and adds a fix.
Big thanks to Davide for pointing me at r216244 which gives some insight
into how to fix this VS2013 issue. VS2013 can't synthesize a move
constructor. So the fix here is to add one explicitly to the
JumpThreadingPass class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272607
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Davide Italiano [Tue, 14 Jun 2016 00:49:23 +0000 (00:49 +0000)]
[PM] Port MergedLoadStoreMotion to the new pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272606
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Sean Silva [Tue, 14 Jun 2016 00:26:31 +0000 (00:26 +0000)]
Revert "[PM] Port JumpThreading to the new PM"
This reverts commit r272597.
Will investigate issue with VS2013 compilation and then recommit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272603
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Sean Silva [Tue, 14 Jun 2016 00:19:37 +0000 (00:19 +0000)]
Revert "Try to appease MSVC on clang-x86-win2008-selfhost"
This reverts commit r272601. The attempt didn't work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272602
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Sean Silva [Tue, 14 Jun 2016 00:11:37 +0000 (00:11 +0000)]
Try to appease MSVC on clang-x86-win2008-selfhost
I've tested this locally with VS2015 and there are no issues there,
so this might be a VS2013 specific issue.
Thanks to Davide for the suggested fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272601
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Dan Liew [Tue, 14 Jun 2016 00:11:34 +0000 (00:11 +0000)]
[LibFuzzer] Move tests in ``fuzzer-traces.test`` that require hooks to their own test.
The tests in ``fuzzer-traces-hooks.test`` only work on Linux because calls to hooks
(e.g. ``__sanitizer_weak_hook_memcmp()``) from inside the sanitizer
runtime are only implemented on Linux. Therefore these tests are set to
only run on Linux.
Differential Revision: http://reviews.llvm.org/D21253
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272600
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Vedant Kumar [Mon, 13 Jun 2016 23:33:48 +0000 (23:33 +0000)]
Add support for collating profiles for use with code coverage
Differential Revision: http://reviews.llvm.org/D20993
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272599
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Davide Italiano [Mon, 13 Jun 2016 23:28:35 +0000 (23:28 +0000)]
[PM/MergedLoadStoreMotion] Remove unneeded pass dependency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272598
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Sean Silva [Mon, 13 Jun 2016 22:52:52 +0000 (22:52 +0000)]
[PM] Port JumpThreading to the new PM
This follows the approach in r263208 (for GVN) pretty closely:
- move the bulk of the body of the function to the new PM class.
- expose a runImpl method on the new-PM class that takes the IRUnitT and
pointers/references to any analyses and use that to implement the
old-PM class.
- use a private namespace in the header for stuff that used to be file
scope
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272597
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Davide Italiano [Mon, 13 Jun 2016 22:27:30 +0000 (22:27 +0000)]
[PM/MergeLoadStoreMotion] Convert the logic to static functions.
Pass AliasAnalyis and MemoryDepResult around. This is in preparation
for porting this pass to the new PM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272595
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Xinliang David Li [Mon, 13 Jun 2016 22:23:44 +0000 (22:23 +0000)]
[MBP] Interface cleanups /NFC
Save machine function pointer so that
the reference does not need to be passed around.
This also gives other methods access to machine
function for information such as entry count etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272594
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Sean Silva [Mon, 13 Jun 2016 22:01:25 +0000 (22:01 +0000)]
[PM] Port LVI to the new PM.
This is a bit gnarly since LVI is maintaining its own cache.
I think this port could be somewhat cleaner, but I'd rather not spend
too much time on it while we still have the old pass hanging around and
limiting how much we can clean things up.
Once the old pass is gone it will be easier (less time spent) to clean
it up anyway.
This is the last dependency needed for porting JumpThreading which I'll
do in a follow-up commit (there's no printer pass for LVI or anything to
test it, so porting a pass that depends on it seems best).
I've been mostly following:
r269370 / D18834 which ported Dependence Analysis
r268601 / D19839 which ported BPI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272593
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Kevin Enderby [Mon, 13 Jun 2016 21:08:57 +0000 (21:08 +0000)]
Update the AArch64ExternalSymbolizer to print literal strings as escaped strings
so it is the same as the MCExternalSymbolizer.
rdar://
17349181
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272588
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Xinliang David Li [Mon, 13 Jun 2016 20:24:19 +0000 (20:24 +0000)]
[MBP] Code cleanup #3 /NFC
This is third patch to clean up the code.
Included in this patch:
1. Further unclutter trace/chain formation main routine;
2. Isolate the logic to compute global cost/conflict detection
into its own method;
3. Heavily document the selection algorithm;
4. Added helper hook to allow PGO specific logic to be
added in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272582
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Sanjoy Das [Mon, 13 Jun 2016 20:12:07 +0000 (20:12 +0000)]
Move previously added test case to the right location
In rL272580 I accidentally added a test case to test/CodeGen when
test/Transforms/DeadStoreElimination/ is a better place for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272581
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Sanjoy Das [Mon, 13 Jun 2016 19:55:04 +0000 (19:55 +0000)]
Fix AAResults::callCapturesBefore for operand bundles
Summary:
AAResults::callCapturesBefore would previously ignore operand
bundles. It was possible for a later instruction to miss its memory
dependency on a call site that would only access the pointer through a
bundle.
Patch by Oscar Blumberg!
Reviewers: sanjoy
Differential Revision: http://reviews.llvm.org/D21286
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272580
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George Burgess IV [Mon, 13 Jun 2016 19:38:49 +0000 (19:38 +0000)]
Attempt to make windows buildbots happy.
Broken by r272578. I didn't realize that the default move ctor
complaints would happen for non-template classes. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272579
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George Burgess IV [Mon, 13 Jun 2016 19:21:18 +0000 (19:21 +0000)]
[CFLAA] Refactor to remove redundant maps. NFC.
Patch by Jia Chen.
Differential Revision: http://reviews.llvm.org/D21233
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272578
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Simon Pilgrim [Mon, 13 Jun 2016 19:08:28 +0000 (19:08 +0000)]
[X86][SSE] Added extract to scalar nontemporal store tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272577
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David Majnemer [Mon, 13 Jun 2016 17:33:13 +0000 (17:33 +0000)]
[X86] Remove llvm.x86.bit.scan.{forward,reverse}.32
The need for these intrinsics has been obviated by r272564 which
reimplements their functionality using generic IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272566
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Rafael Espindola [Mon, 13 Jun 2016 17:08:15 +0000 (17:08 +0000)]
Add triple to input file.
Patch by H.J. Lu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272563
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Marek Olsak [Mon, 13 Jun 2016 16:05:57 +0000 (16:05 +0000)]
AMDGPU/SI: Set INDEX_STRIDE for scratch coalescing
Summary:
Mesa and other users must set this to enable coalescing:
- STRIDE = 0
- SWIZZLE_ENABLE = 1
This makes one particular compute shader 8x faster.
Reviewers: tstellarAMD, arsenm
Subscribers: arsenm, kzhuravl
Differential Revision: http://reviews.llvm.org/D21136
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272556
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Taewook Oh [Mon, 13 Jun 2016 15:54:56 +0000 (15:54 +0000)]
In openFileForRead, attempt to fetch the actual name of the file on disk -- including case -- so that clang can later warn about non-portable #include and #import directives.
Differential Revision: http://reviews.llvm.org/D19842
Corresponding clang patch: http://reviews.llvm.org/D19843
Re-commit after addressing issues with of generating too many warnings for Windows and asan test failures
Patch by Eric Niebler
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272555
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Matt Arsenault [Mon, 13 Jun 2016 15:53:52 +0000 (15:53 +0000)]
AMDGPU: Fix post-RA verifier errors with trackLivenessAfterRegAlloc
The condition reg of the cndmask_b64 expansion can't be killed by
the first one, and the implicit super register implicit def is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272554
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Ulrich Weigand [Mon, 13 Jun 2016 14:24:05 +0000 (14:24 +0000)]
[SystemZ] Enable index register memory constraints for inline ASM
This enables use of the 'R' and 'T' memory constraints for inline ASM
operands on SystemZ, which allow an index register as well as an
immediate displacement. This patch includes corresponding documentation
and test case updates.
As with the last patch of this kind, I moved the 'm' constraint to the
most general case, which is now 'T' (base + 20-bit signed displacement +
index register).
Author: colpell
Differential Revision: http://reviews.llvm.org/D21239
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272547
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