David Green [Tue, 22 Oct 2019 14:49:40 +0000 (14:49 +0000)]
[InstCombine] Signed saturation tests. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375503
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Petar Avramovic [Tue, 22 Oct 2019 14:25:37 +0000 (14:25 +0000)]
[MIParser] Set RegClassOrRegBank during instruction parsing
MachineRegisterInfo::createGenericVirtualRegister sets
RegClassOrRegBank to static_cast<RegisterBank *>(nullptr).
MIParser on the other hand doesn't. When we attempt to constrain
Register Class on such VReg, additional COPY is generated.
This way we avoid COPY instructions showing in test that have MIR
input while they are not present with llvm-ir input that was used
to create given MIR for a -run-pass test.
Differential Revision: https://reviews.llvm.org/D68946
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375502
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Petar Avramovic [Tue, 22 Oct 2019 13:51:57 +0000 (13:51 +0000)]
[MIPS GlobalISel] Select MSA vector generic and builtin add
Select vector G_ADD for MIPS32 with MSA. We have to set bank
for vector operands to fprb and selectImpl will do the rest.
__builtin_msa_addv_<format> will be transformed into G_ADD
in legalizeIntrinsic and selected in the same way.
__builtin_msa_addvi_<format> will be directly selected into
ADDVI_<format> in legalizeIntrinsic. MIR tests for it have
unnecessary additional copies. Capture current state of tests
with run-pass=legalizer with a test in test/CodeGen/MIR/Mips.
Differential Revision: https://reviews.llvm.org/D68984
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375501
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Eugene Leviant [Tue, 22 Oct 2019 12:57:23 +0000 (12:57 +0000)]
[ThinLTO] Add code comment. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375500
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Guillaume Chatelet [Tue, 22 Oct 2019 12:55:32 +0000 (12:55 +0000)]
[Alignment][NFC] Convert StoreInst to MaybeAlign
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69303
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375499
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Guillaume Chatelet [Tue, 22 Oct 2019 12:35:55 +0000 (12:35 +0000)]
[Alignment][NFC] Convert LoadInst to MaybeAlign
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69302
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375498
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Nemanja Ivanovic [Tue, 22 Oct 2019 12:20:38 +0000 (12:20 +0000)]
[PowerPC] Turn on CR-Logical reducer pass
This re-commits r375152 which was pulled in r375233 because it broke
the EXPENSIVE_CHECKS bot on Windows.
The reason for the failure was a bug in the pass that the commit turned
on by default. This patch fixes that bug and turns the pass back on.
This patch has been verified on the buildbot that originally failed
thanks to Simon Pilgrim.
Differential revision: https://reviews.llvm.org/D52431
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375497
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Guillaume Chatelet [Tue, 22 Oct 2019 11:57:52 +0000 (11:57 +0000)]
[Alignment][NFC] Use MaybeAlign in AttrBuilder
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69300
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375496
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Guillaume Chatelet [Tue, 22 Oct 2019 09:51:06 +0000 (09:51 +0000)]
[Alignment][NFC] Attributes use Align/MaybeAlign
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: jholewinski, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69278
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375495
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Eugene Leviant [Tue, 22 Oct 2019 09:24:12 +0000 (09:24 +0000)]
[ThinLTO] Don't internalize during promotion
Differential revision: https://reviews.llvm.org/D69107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375493
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George Rimar [Tue, 22 Oct 2019 08:52:45 +0000 (08:52 +0000)]
[LLVMDebugInfoPDB] - Use cantFail() instead of assert().
Currently injected-sources-native.test fails with "Expected<T>
value was in success state.
(Note: Expected<T> values in success mode must still be checked
prior to being destroyed)"
when llvm is compiled with LLVM_ENABLE_ABI_BREAKING_CHECKS in Release.
The problem is that getStringForID returns Expected<StringRef>
and Expected value must always be checked, even if it is in success state.
Checking with assert only helps in Debug and is wrong.
Differential revision: https://reviews.llvm.org/D69251
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375492
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Martin Storsjo [Tue, 22 Oct 2019 06:36:27 +0000 (06:36 +0000)]
[CMake] [WinMsvc] Look for includes and libs in ${MSVC_BASE}/atlmfc
This is necessary if building with the DIA SDK enabled.
Differential Revision: https://reviews.llvm.org/D69240
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375486
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Martin Storsjo [Tue, 22 Oct 2019 06:36:21 +0000 (06:36 +0000)]
[CMake] Allow overriding MSVC_DIA_SDK_DIR via CMake
This eases using it in cross-msvc setups.
Differential Revision: https://reviews.llvm.org/D69239
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375485
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GN Sync Bot [Tue, 22 Oct 2019 05:09:35 +0000 (05:09 +0000)]
gn build: Merge r375483
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375484
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Julian Lettner [Tue, 22 Oct 2019 01:13:30 +0000 (01:13 +0000)]
[lit] Move increase_process_limit to ParallelRun
Increasing the process limit only makes sense when we use multiple
processes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375474
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Simon Pilgrim [Mon, 21 Oct 2019 23:41:40 +0000 (23:41 +0000)]
[X86][BMI] Pull out schedule classes from bmi_andn<> and bmi_bls<>
Stop hardwiring classes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375470
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Simon Pilgrim [Mon, 21 Oct 2019 22:36:31 +0000 (22:36 +0000)]
[X86][SSE] Add OR(EXTRACTELT(X,0),OR(EXTRACTELT(X,1))) -> MOVMSK+CMP reduction combine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375463
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Simon Pilgrim [Mon, 21 Oct 2019 22:36:07 +0000 (22:36 +0000)]
[X86][SSE] Add OR(EXTRACTELT(X,0),OR(EXTRACTELT(X,1))) movmsk v2X64 tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375462
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Lang Hames [Mon, 21 Oct 2019 22:29:29 +0000 (22:29 +0000)]
[examples] Add a dependency on ExecutionEngine to LLJITWithObjectCache example.
ExecutionEngine.cpp contains the anchor() for the ObjectCache base class, so we
need an explicit dependency on it.
Patch by Stephen Neuendorffer. Thanks Stephen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375461
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Austin Kerbow [Mon, 21 Oct 2019 22:18:26 +0000 (22:18 +0000)]
AMDGPU/GlobalISel: Legalize fast unsafe FDIV
Reviewers: arsenm
Reviewed By: arsenm
Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, rovka, dstuttard, tpr, t-tye, hiraditya, Petar.Avramovic, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69231
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375460
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Julian Lettner [Mon, 21 Oct 2019 21:57:18 +0000 (21:57 +0000)]
[lit] Simplify test scheduling via multiprocessing.Pool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375458
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Matt Arsenault [Mon, 21 Oct 2019 21:49:44 +0000 (21:49 +0000)]
AMDGPU: Select basic interp directly from intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375457
91177308-0d34-0410-b5e6-
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Julian Lettner [Mon, 21 Oct 2019 21:41:59 +0000 (21:41 +0000)]
[lit] Remove redundancy from names and comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375456
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Roman Lebedev [Mon, 21 Oct 2019 21:31:19 +0000 (21:31 +0000)]
[CVP] No-wrap deduction for `shl`
Summary:
This is the last `OverflowingBinaryOperator` for which we don't deduce flags.
D69217 taught `ConstantRange::makeGuaranteedNoWrapRegion()` about it.
The effect is better than of the `mul` patch (D69203):
| statistic | old | new | delta | % change |
| correlated-value-propagation.NumAddNUW | 7145 | 7144 | -1 | -0.0140% |
| correlated-value-propagation.NumAddNW | 12126 | 12125 | -1 | -0.0082% |
| correlated-value-propagation.NumAnd | 443 | 446 | 3 | 0.6772% |
| correlated-value-propagation.NumNSW | 5986 | 7158 | 1172 | 19.5790% |
| correlated-value-propagation.NumNUW | 10512 | 13304 | 2792 | 26.5601% |
| correlated-value-propagation.NumNW | 16498 | 20462 | 3964 | 24.0272% |
| correlated-value-propagation.NumShlNSW | 0 | 1172 | 1172 | |
| correlated-value-propagation.NumShlNUW | 0 | 2793 | 2793 | |
| correlated-value-propagation.NumShlNW | 0 | 3965 | 3965 | |
| instcount.NumAShrInst | 13824 | 13790 | -34 | -0.2459% |
| instcount.NumAddInst | 277584 | 277586 | 2 | 0.0007% |
| instcount.NumAndInst | 66061 | 66056 | -5 | -0.0076% |
| instcount.NumBrInst | 709153 | 709147 | -6 | -0.0008% |
| instcount.NumICmpInst | 483709 | 483708 | -1 | -0.0002% |
| instcount.NumSExtInst | 79497 | 79496 | -1 | -0.0013% |
| instcount.NumShlInst | 40691 | 40654 | -37 | -0.0909% |
| instcount.NumSubInst | 61997 | 61996 | -1 | -0.0016% |
| instcount.NumZExtInst | 68208 | 68211 | 3 | 0.0044% |
| instcount.TotalBlocks | 843916 | 843910 | -6 | -0.0007% |
| instcount.TotalInsts |
7387528 |
7387448 | -80 | -0.0011% |
Reviewers: nikic, reames, sanjoy, timshen
Reviewed By: nikic
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69277
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375455
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Quentin Colombet [Mon, 21 Oct 2019 20:39:58 +0000 (20:39 +0000)]
[GISel][CombinerHelper] Add a combine turning shuffle_vector into concat_vectors
Teach the CombinerHelper how to turn shuffle_vectors, that
concatenate vectors, into concat_vectors and add this combine
to the AArch64 pre-legalizer combiner.
Differential Revision: https://reviews.llvm.org/D69149
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375452
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Matt Arsenault [Mon, 21 Oct 2019 19:53:49 +0000 (19:53 +0000)]
AMDGPU: Use CopyToReg for interp intrinsic lowering
This doesn't use the default value, so doesn't benefit from the hack
to help optimize it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375450
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Matt Arsenault [Mon, 21 Oct 2019 19:53:46 +0000 (19:53 +0000)]
AMDGPU: Erase redundant redefs of m0 in SIFoldOperands
Only handle simple inter-block redefs of m0 to the same value. This
avoids interference from redefs of m0 in SILoadStoreOptimzer. I was
initially teaching that pass to ignore redefs of m0, but having them
not exist beforehand is much simpler.
This is in preparation for deleting the current special m0 handling in
SIFixSGPRCopies to allow the register coalescer to handle the
difficult cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375449
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Matt Arsenault [Mon, 21 Oct 2019 19:42:29 +0000 (19:42 +0000)]
AMDGPU: Stop adding m0 implicit def to SGPR spills
r375293 removed the SGPR spilling with scalar stores path, so this is
no longer necessary. This also always had the defect of adding the def
even when this path wasn't in use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375448
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Matt Arsenault [Mon, 21 Oct 2019 19:42:26 +0000 (19:42 +0000)]
AMDGPU: Slightly restructure m0 init code
This will allow using another operation to produce the glue in a
future change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375447
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Stanislav Mekhanoshin [Mon, 21 Oct 2019 19:25:27 +0000 (19:25 +0000)]
[AMDGPU] Select AGPR in PHI operand legalization
If a PHI defines AGPR legalize its operands to AGPR.
At the moment we can get an AGPR PHI with VGPR operands.
I am not aware of any problems as it seems to be handled
gracefully in RA, but this is not right anyway.
It also slightly decreases VGPR pressure in some cases
because we do not have to a copy via VGPR.
Differential Revision: https://reviews.llvm.org/D69206
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375446
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Simon Pilgrim [Mon, 21 Oct 2019 19:19:50 +0000 (19:19 +0000)]
[X86] Rename matchBitOpReduction to matchScalarReduction. NFCI.
This doesn't need to be just for bitops, but the ops do need to be fully associative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375445
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Sander de Smalen [Mon, 21 Oct 2019 19:11:40 +0000 (19:11 +0000)]
Reverted r375425 as it broke some buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375444
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Roman Lebedev [Mon, 21 Oct 2019 18:35:26 +0000 (18:35 +0000)]
[NFC][CVP] Add `shl` no-wrap deduction test coverage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375441
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Bjorn Pettersson [Mon, 21 Oct 2019 17:51:54 +0000 (17:51 +0000)]
Prune Pass.h include from DataLayout.h. NFCI
Summary:
Reduce include dependencies by no longer including Pass.h from
DataLayout.h. That include seemed irrelevant to DataLayout, as
well as being irrelevant to several users of DataLayout.
Reviewers: rnk
Reviewed By: rnk
Subscribers: mehdi_amini, hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D69261
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375436
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Simon Pilgrim [Mon, 21 Oct 2019 17:45:51 +0000 (17:45 +0000)]
[PowerPC] Regenerate test for D52431
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375435
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Raphael Isemann [Mon, 21 Oct 2019 17:43:38 +0000 (17:43 +0000)]
[NFC] Add missing include to fix modules build
This header doesn't seem to be parsable on its own and breaks the module build therefore with
the following error:
While building module 'LLVM_Backend' imported from llvm-project/llvm/lib/CodeGen/MachineScheduler.cpp:14:
In file included from <module-includes>:62:
llvm-project/llvm/include/llvm/CodeGen/MachinePipeliner.h:91:20: error: declaration of 'AAResultsWrapperPass' must be imported from module 'LLVM_Analysis.AliasAnalysis' before it is required
AU.addRequired<AAResultsWrapperPass>();
^
llvm-project/llvm/include/llvm/Analysis/AliasAnalysis.h:1157:7: note: previous declaration is here
class AAResultsWrapperPass : public FunctionPass {
^
llvm-project/llvm/lib/CodeGen/MachineScheduler.cpp:14:10: fatal error: could not build module 'LLVM_Backend'
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375433
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Simon Pilgrim [Mon, 21 Oct 2019 17:16:03 +0000 (17:16 +0000)]
SystemZISelLowering - supportedAddressingMode - silence static analyzer dyn_cast<> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375430
91177308-0d34-0410-b5e6-
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Simon Pilgrim [Mon, 21 Oct 2019 17:15:49 +0000 (17:15 +0000)]
GVNHoist - silence static analyzer dyn_cast<> null dereference warning in hasEHOrLoadsOnPath call. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375429
91177308-0d34-0410-b5e6-
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Simon Pilgrim [Mon, 21 Oct 2019 17:15:37 +0000 (17:15 +0000)]
GuardWidening - silence static analyzer null dereference warning with assertion. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375428
91177308-0d34-0410-b5e6-
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Simon Pilgrim [Mon, 21 Oct 2019 17:15:25 +0000 (17:15 +0000)]
CrossDSOCFI - silence static analyzer dyn_cast<> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375427
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Simon Pilgrim [Mon, 21 Oct 2019 17:15:05 +0000 (17:15 +0000)]
IndVarSimplify - silence static analyzer dyn_cast<> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375426
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Sander de Smalen [Mon, 21 Oct 2019 17:12:56 +0000 (17:12 +0000)]
[AArch64][DebugInfo] Do not recompute CalleeSavedStackSize (Take 2)
Commit message from D66935:
This patch fixes a bug exposed by D65653 where a subsequent invocation
of `determineCalleeSaves` ends up with a different size for the callee
save area, leading to different frame-offsets in debug information.
In the invocation by PEI, `determineCalleeSaves` tries to determine
whether it needs to spill an extra callee-saved register to get an
emergency spill slot. To do this, it calls 'estimateStackSize' and
manually adds the size of the callee-saves to this. PEI then allocates
the spill objects for the callee saves and the remaining frame layout
is calculated accordingly.
A second invocation in LiveDebugValues causes estimateStackSize to return
the size of the stack frame including the callee-saves. Given that the
size of the callee-saves is added to this, these callee-saves are counted
twice, which leads `determineCalleeSaves` to believe the stack has
become big enough to require spilling an extra callee-save as emergency
spillslot. It then updates CalleeSavedStackSize with a larger value.
Since CalleeSavedStackSize is used in the calculation of the frame
offset in getFrameIndexReference, this leads to incorrect offsets for
variables/locals when this information is recalculated after PEI.
This patch fixes the lldb unit tests in `functionalities/thread/concurrent_events/*`
Changes after D66935:
Ensures AArch64FunctionInfo::getCalleeSavedStackSize does not return
the uninitialized CalleeSavedStackSize when running `llc` on a specific
pass where the MIR code has already been expected to have gone through PEI.
Instead, getCalleeSavedStackSize (when passed the MachineFrameInfo) will try
to recalculate the CalleeSavedStackSize from the CalleeSavedInfo. In debug
mode, the compiler will assert the recalculated size equals the cached
size as calculated through a call to determineCalleeSaves.
This fixes two tests:
test/DebugInfo/AArch64/asan-stack-vars.mir
test/DebugInfo/AArch64/compiler-gen-bbs-livedebugvalues.mir
that otherwise fail when compiled using msan.
Reviewed By: omjavaid, efriedma
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68783
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375425
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Xiangling Liao [Mon, 21 Oct 2019 15:36:13 +0000 (15:36 +0000)]
[NFC] Cleanup with variable name IsPPC64 & IsDarwin
Clean up PPCAsmPrinter with IsPPC64 and IsDarwin.
Differential Revision: https://reviews.llvm.org/D69259
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375420
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Guillaume Chatelet [Mon, 21 Oct 2019 15:10:26 +0000 (15:10 +0000)]
[Alignment][NFC] Finish transition for `Loads`
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, asbirlea, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69253
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375419
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Jay Foad [Mon, 21 Oct 2019 15:01:59 +0000 (15:01 +0000)]
Pre-commit test cases for D64713.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375418
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David Green [Mon, 21 Oct 2019 14:51:49 +0000 (14:51 +0000)]
[Types] Define a getWithNewBitWidth for Types and make use of it
This is designed to change the bitwidth of a type without altering the number
of vector lanes. Also useful in D68651. Otherwise an NFC.
Differential Revision: https://reviews.llvm.org/D69139
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375417
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Guillaume Chatelet [Mon, 21 Oct 2019 14:49:28 +0000 (14:49 +0000)]
[Alignment][NFC] Instructions::getLoadStoreAlignment
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69256
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375416
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David Green [Mon, 21 Oct 2019 14:06:49 +0000 (14:06 +0000)]
[ARM] Extra qdadd patterns
This adds some new qdadd patterns to go along with the other recently added
qadd's.
Differential Revision: https://reviews.llvm.org/D68999
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375414
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Guillaume Chatelet [Mon, 21 Oct 2019 13:58:33 +0000 (13:58 +0000)]
[Alignment][NFC] Add a helper function to DataLayout
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69258
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375413
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Owen Reynolds [Mon, 21 Oct 2019 13:13:31 +0000 (13:13 +0000)]
[docs][llvm-ar] Update llvm-ar command guide
The llvm-ar command guide had not been updated in some time, it was
missing current functionality and contained information that was out
of date. This change:
- Updates the use of reStructuredText directives, as seen in other tools
command guides.
- Updates the command synopsis.
- Updates the descriptions of the tool behaviour.
- Updates the options section.
- Adds details of MRI script functionality.
- Removes the sections "Standards" and "File Format"
Differential Revision: https://reviews.llvm.org/D68998
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375412
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David Green [Mon, 21 Oct 2019 12:33:46 +0000 (12:33 +0000)]
[ARM] Add qadd lowering from a sadd_sat
This lowers a sadd_sat to a qadd by treating it as legal. Also adds qsub at the
same time.
The qadd instruction sets the q flag, but we already have many cases where we
do not model this in llvm.
Differential Revision: https://reviews.llvm.org/D68976
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375411
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Guillaume Chatelet [Mon, 21 Oct 2019 12:05:33 +0000 (12:05 +0000)]
[Alignment][NFC] TargetCallingConv::setByValAlign
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69248
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375410
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Jay Foad [Mon, 21 Oct 2019 11:32:41 +0000 (11:32 +0000)]
Simplify usage of setFPAttrs.
In some cases using the return value of setFPAttrs simplifies the code.
In other cases it complicates the code with ugly casts, so stop doing
it. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375409
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George Rimar [Mon, 21 Oct 2019 11:06:38 +0000 (11:06 +0000)]
[llvm/Object] - Make ELFObjectFile::getRelocatedSection return Expected<section_iterator>
It returns just a section_iterator currently and have a report_fatal_error call inside.
This change adds a way to return errors and handle them on caller sides.
The patch also changes/improves current users and adds test cases.
Differential revision: https://reviews.llvm.org/D69167
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375408
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Guillaume Chatelet [Mon, 21 Oct 2019 11:01:55 +0000 (11:01 +0000)]
[Alignment][NFC] TargetCallingConv::setOrigAlign and TargetLowering::getABIAlignmentForCallingConv
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: sdardis, hiraditya, jrtc27, atanasyan, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69243
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375407
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David Carlier [Mon, 21 Oct 2019 10:44:20 +0000 (10:44 +0000)]
Fix llvm signal tests build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375406
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George Rimar [Mon, 21 Oct 2019 10:40:43 +0000 (10:40 +0000)]
[obj2yaml] - Fix a comment. NFC.
I forgot to address this nit before committing..
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375405
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George Rimar [Mon, 21 Oct 2019 10:38:03 +0000 (10:38 +0000)]
[obj2yaml] - Stop triggering UB when dumping corrupted strings.
We have a following code to find quote type:
if (isspace(S.front()) || isspace(S.back()))
...
Problem is that:
"int isspace( int ch ): The behavior is undefined if the value of
ch is not representable as unsigned char and is not equal to EOF."
(https://en.cppreference.com/w/cpp/string/byte/isspace)
This patch shows how this UB can be triggered and fixes an issue.
Differential revision: https://reviews.llvm.org/D69160
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375404
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Sam Elliott [Mon, 21 Oct 2019 10:00:34 +0000 (10:00 +0000)]
[MemCpyOpt] Fixing Incorrect Code Motion while Handling Aggregate Type Values
Summary:
When MemCpyOpt is handling aggregate type values, if an instruction (let's call it P) between the targeting load (L) and store (S) clobbers the source pointer of L, it will try to hoist S before P. This process will also hoist S's data dependency instructions.
However, the current implementation has a bug that if one of S's dependency instructions is //also// a user of P, MemCpyOpt will not prevent it from being hoisted above P and cause a use-before-define error. For example, in the newly added test file (i.e. `aggregate-type-crash.ll`), it will try to hoist both `store %my_struct %1, %my_struct* %3` and its dependent, `%3 = bitcast i8* %2 to %my_struct*`, above `%2 = call i8* @my_malloc(%my_struct* %0)`. Creating the following BB:
```
entry:
%1 = bitcast i8* %4 to %my_struct*
%2 = bitcast %my_struct* %1 to i8*
%3 = bitcast %my_struct* %0 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %2, i8* align 4 %3, i64 8, i1 false)
%4 = call i8* @my_malloc(%my_struct* %0)
ret void
```
Where there is a use-before-define error between `%1` and `%4`.
Update: The compiler for the Pony Programming Language [also encounter the same bug](https://github.com/ponylang/ponyc/issues/3140)
Patch by Min-Yih Hsu (myhsu)
Reviewers: eugenis, pcc, dblaikie, dneilson, t.p.northover, lattner
Reviewed By: eugenis
Subscribers: lenary, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66060
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375403
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David Green [Mon, 21 Oct 2019 09:53:38 +0000 (09:53 +0000)]
[ARM] Lower sadd_sat to qadd8 and qadd16
Lower the target independent signed saturating intrinsics to qadd8 and qadd16.
This custom lowers them from a sadd_sat, catching the node early before it is
promoted. It also adds a QADD8b and QADD16b node to mean the bottom "lane" of a
qadd8/qadd16, so that we can call demand bits on it to show that it does not
use the upper bits.
Also handles QSUB8 and QSUB16.
Differential Revision: https://reviews.llvm.org/D68974
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375402
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David Green [Mon, 21 Oct 2019 09:43:37 +0000 (09:43 +0000)]
[ARM] Add and adjust saturation tests for upcoming qadd changes. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375401
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Guillaume Chatelet [Mon, 21 Oct 2019 08:31:25 +0000 (08:31 +0000)]
Use Align for TFL::TransientStackAlignment
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: arsenm, dschuff, jyknight, sdardis, jvesely, nhaehnle, sbc100, jgravelle-google, hiraditya, aheejin, fedor.sergeev, jrtc27, atanasyan, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375398
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Roman Lebedev [Mon, 21 Oct 2019 08:21:54 +0000 (08:21 +0000)]
[NFC][InstCombine] Fixup comments
As noted in post-commit review of rL375378375378.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375397
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Roman Lebedev [Mon, 21 Oct 2019 08:21:44 +0000 (08:21 +0000)]
[CVP] Deduce no-wrap on `mul`
Summary:
`ConstantRange::makeGuaranteedNoWrapRegion()` knows how to deal with `mul`
since rL335646, there is exhaustive test coverage.
This is already used by CVP's `processOverflowIntrinsic()`,
and by SCEV's `StrengthenNoWrapFlags()`
That being said, currently, this doesn't help much in the end:
| statistic | old | new | delta | percentage |
| correlated-value-propagation.NumMulNSW | 4 | 275 | 271 | 6775.00% |
| correlated-value-propagation.NumMulNUW | 4 | 1323 | 1319 | 32975.00% |
| correlated-value-propagation.NumMulNW | 8 | 1598 | 1590 | 19875.00% |
| correlated-value-propagation.NumNSW | 5715 | 5986 | 271 | 4.74% |
| correlated-value-propagation.NumNUW | 9193 | 10512 | 1319 | 14.35% |
| correlated-value-propagation.NumNW | 14908 | 16498 | 1590 | 10.67% |
| instcount.NumAddInst | 275871 | 275869 | -2 | 0.00% |
| instcount.NumBrInst | 708234 | 708232 | -2 | 0.00% |
| instcount.NumMulInst | 43812 | 43810 | -2 | 0.00% |
| instcount.NumPHIInst | 316786 | 316784 | -2 | 0.00% |
| instcount.NumTruncInst | 62165 | 62167 | 2 | 0.00% |
| instcount.NumUDivInst | 2528 | 2526 | -2 | -0.08% |
| instcount.TotalBlocks | 842995 | 842993 | -2 | 0.00% |
| instcount.TotalInsts |
7376486 |
7376478 | -8 | 0.00% |
(^ test-suite plain, tests still pass)
Reviewers: nikic, reames, luqmana, sanjoy, timshen
Reviewed By: reames
Subscribers: hiraditya, javed.absar, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69203
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375396
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Piotr Sobczak [Mon, 21 Oct 2019 08:12:47 +0000 (08:12 +0000)]
[InstCombine] Allow values with multiple users in SimplifyDemandedVectorElts
Summary:
Allow for ignoring the check for a single use in SimplifyDemandedVectorElts
to be able to simplify operands if DemandedElts is known to contain
the union of elements used by all users.
It is a responsibility of a caller of SimplifyDemandedVectorElts to
supply correct DemandedElts.
Simplify a series of extractelement instructions if only a subset of
elements is used.
Reviewers: reames, arsenm, majnemer, nhaehnle
Reviewed By: nhaehnle
Subscribers: wdng, jvesely, nhaehnle, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67345
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375395
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GN Sync Bot [Mon, 21 Oct 2019 08:06:38 +0000 (08:06 +0000)]
gn build: Merge r375390
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375393
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Martin Storsjo [Mon, 21 Oct 2019 08:02:34 +0000 (08:02 +0000)]
[LLDB] [Windows] Initial support for ARM register contexts
Differential Revision: https://reviews.llvm.org/D69226
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375392
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Yevgeny Rouban [Mon, 21 Oct 2019 06:52:08 +0000 (06:52 +0000)]
[IR] Fix mayReadFromMemory() for writeonly calls
Current implementation of Instruction::mayReadFromMemory()
returns !doesNotAccessMemory() which is !ReadNone. This
does not take into account that the writeonly attribute
also indicates that the call does not read from memory.
The patch changes the predicate to !doesNotReadMemory()
that reflects the intended behavior.
Differential Revision: https://reviews.llvm.org/D69086
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375389
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Yonghong Song [Mon, 21 Oct 2019 03:22:03 +0000 (03:22 +0000)]
[BPF] fix indirect call assembly code
Currently, for indirect call, the assembly code printed out as
callx <imm>
This is not right, it should be
callx <reg>
Fixed the issue with proper format.
Differential Revision: https://reviews.llvm.org/D69229
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375386
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Johannes Doerfert [Mon, 21 Oct 2019 01:29:10 +0000 (01:29 +0000)]
[Attributor][FIX] Silence sign-compare warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375384
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Johannes Doerfert [Mon, 21 Oct 2019 00:48:42 +0000 (00:48 +0000)]
[Attributor] Teach AANoCapture to use information in-flight more aggressively
AAReturnedValues, AAMemoryBehavior, and AANoUnwind, can provide
information that helps during the tracking or even justifies no-capture.
We now use this information and enable no-capture in some test cases
designed a long while a ago for these cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375382
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Craig Topper [Sun, 20 Oct 2019 23:54:19 +0000 (23:54 +0000)]
[X86] Check Subtarget.hasSSE3() before calling shouldUseHorizontalOp and emitting X86ISD::FHADD in LowerUINT_TO_FP_i64.
This was a regression from r375341.
Fixes PR43729.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375381
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Philip Reames [Sun, 20 Oct 2019 23:44:01 +0000 (23:44 +0000)]
[IndVars] Add a todo to reflect a further oppurtunity identified in D69009
Nikita pointed out an oppurtunity, might as well document it in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375380
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Philip Reames [Sun, 20 Oct 2019 23:38:02 +0000 (23:38 +0000)]
[IndVars] Eliminate loop exits with equivalent exit counts
We can end up with two loop exits whose exit counts are equivalent, but whose textual representation is different and non-obvious. For the sub-case where we have a series of exits which dominate one another (common), eliminate any exits which would iterate *after* a previous exit on the exiting iteration.
As noted in the TODO being removed, I'd always thought this was a good idea, but I've now seen this in a real workload as well.
Interestingly, in review, Nikita pointed out there's let another oppurtunity to leverage SCEV's reasoning. If we kept track of the min of dominanting exits so far, we could discharge exits with EC >= MDE. This is less powerful than the existing transform (since later exits aren't considered), but potentially more powerful for any case where SCEV can prove a >= b, but neither a == b or a > b. I don't have an example to illustrate that oppurtunity, but won't be suprised if we find one and return to handle that case as well.
Differential Revision: https://reviews.llvm.org/D69009
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375379
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Roman Lebedev [Sun, 20 Oct 2019 20:52:06 +0000 (20:52 +0000)]
[InstCombine] conditional sign-extend of high-bit-extract: 'or' pattern.
In this pattern, all the "magic" bits that we'd `add` are all
high sign bits, and in the value we'd be adding to they are all unset,
not unexpectedly, so we can have an `or` there:
https://rise4fun.com/Alive/ups
It is possible that `haveNoCommonBitsSet()` should be taught about this
pattern so that we never have an `add` variant, but the reasoning would
need to be recursive (because of that `select`), so i'm not really sure
that would be worth it just yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375378
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Roman Lebedev [Sun, 20 Oct 2019 20:51:37 +0000 (20:51 +0000)]
[NFC][InstCombine] conditional sign-extend of high-bit-extract: 'and' pat. can be 'or' pattern.
In this pattern, all the "magic" bits that we'd add are all
high sign bits, and in the value we'd be adding to they are all unset,
not unexpectedly, so we can have an `or` there:
https://rise4fun.com/Alive/ups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375377
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GN Sync Bot [Sun, 20 Oct 2019 20:44:56 +0000 (20:44 +0000)]
gn build: Merge r375375
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375376
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Vladimir Vereschaka [Sun, 20 Oct 2019 20:39:33 +0000 (20:39 +0000)]
Reverted r375254 as it has broken some build bots for a long time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375375
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Nikita Popov [Sun, 20 Oct 2019 20:19:42 +0000 (20:19 +0000)]
[InstCombine] Fold uadd.sat(a, b) == 0 and usub.sat(a, b) == 0
This adds folds for comparing uadd.sat/usub.sat with zero:
* uadd.sat(a, b) == 0 => a == 0 && b == 0 => (a | b) == 0
* usub.sat(a, b) == 0 => a <= b
And inverted forms for !=.
Differential Revision: https://reviews.llvm.org/D69224
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375374
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Zinovy Nis [Sun, 20 Oct 2019 20:01:16 +0000 (20:01 +0000)]
Fix buildbot error in SIRegisterInfo.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375373
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Nikita Popov [Sun, 20 Oct 2019 19:50:31 +0000 (19:50 +0000)]
[InstCombine] Add tests for uadd/sub.sat(a, b) == 0; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375372
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Roman Lebedev [Sun, 20 Oct 2019 19:38:50 +0000 (19:38 +0000)]
[InstCombine] Shift amount reassociation in shifty sign bit test (PR43595)
Summary:
This problem consists of several parts:
* Basic sign bit extraction - `trunc? (?shr %x, (bitwidth(x)-1))`.
This is trivial, and easy to do, we have a fold for it.
* Shift amount reassociation - if we have two identical shifts,
and we can simplify-add their shift amounts together,
then we likely can just perform them as a single shift.
But this is finicky, has one-use restrictions,
and shift opcodes must be identical.
But there is a super-pattern where both of these work together.
to produce sign bit test from two shifts + comparison.
We do indeed already handle this in most cases.
But since we get that fold transitively, it has one-use restrictions.
And what's worse, in this case the right-shifts aren't required to be
identical, and we can't handle that transitively:
If the total shift amount is bitwidth-1, only a sign bit will remain
in the output value. But if we look at this from the perspective of
two shifts, we can't fold - we can't possibly know what bit pattern
we'd produce via two shifts, it will be *some* kind of a mask
produced from original sign bit, but we just can't tell it's shape:
https://rise4fun.com/Alive/cM0 https://rise4fun.com/Alive/9IN
But it will *only* contain sign bit and zeros.
So from the perspective of sign bit test, we're good:
https://rise4fun.com/Alive/FRz https://rise4fun.com/Alive/qBU
Superb!
So the simplest solution is to extend `reassociateShiftAmtsOfTwoSameDirectionShifts()` to also have a
sudo-analysis mode that will ignore extra-uses, and will only check
whether a) those are two right shifts and b) they end up with bitwidth(x)-1
shift amount and return either the original value that we sign-checking,
or null.
This does not have any functionality change for
the existing `reassociateShiftAmtsOfTwoSameDirectionShifts()`.
All that being said, as disscussed in the review, this yet again
increases usage of instsimplify in instcombine as utility.
Some day that may need to be reevaluated.
https://bugs.llvm.org/show_bug.cgi?id=43595
Reviewers: spatel, efriedma, vsk
Reviewed By: spatel
Subscribers: xbolva00, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68930
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375371
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Roman Lebedev [Sun, 20 Oct 2019 19:36:55 +0000 (19:36 +0000)]
[ConstantRange] makeGuaranteedNoWrapRegion(): `shl` support
Summary:
If all the shifts amount are already poison-producing,
then we can add more poison-producing flags ontop:
https://rise4fun.com/Alive/Ocwi
Otherwise, we should only consider the possible range of shift amts that don't result in poison.
For unsigned range not not overflow, we must not shift out any set bits,
and the actual limit for `x` can be computed by backtransforming
the maximal value we could ever get out of the `shl` - `-1` through
`lshr`. If the `x` is any larger than that then it will overflow.
Likewise for signed range, but just in signed domain..
This is based on the general idea outlined by @nikic in https://reviews.llvm.org/D68672#
1714990
Reviewers: nikic, sanjoy
Reviewed By: nikic
Subscribers: hiraditya, llvm-commits, nikic
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69217
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375370
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Nikita Popov [Sun, 20 Oct 2019 18:59:14 +0000 (18:59 +0000)]
[ConstantRange] Optimize nowrap region test, remove redundant tests; NFC
Enumerate one less constant range in TestNoWrapRegionExhaustive,
which was unnecessary. This allows us to bump the bit count from
3 to 5 while keeping reasonable timing.
Drop four tests for multiply nowrap regions, as these cover subsets
of the exhaustive test. They do use a wider bitwidth, but I don't
think it's worthwhile to have them additionally now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375369
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Matt Arsenault [Sun, 20 Oct 2019 17:44:17 +0000 (17:44 +0000)]
AMDGPU: Increase vcc liveness scan threshold
Avoids a test regression in a future patch. Also add debug printing on
this case, so I waste less time debugging folds in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375367
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Matt Arsenault [Sun, 20 Oct 2019 17:34:44 +0000 (17:34 +0000)]
AMDGPU: Split flat offsets that don't fit in DAG
We handle it this way for some other address spaces.
Since r349196, SILoadStoreOptimizer has been trying to do this. This
is after SIFoldOperands runs, which can change the addressing
patterns. It's simpler to just split this earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375366
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Matt Arsenault [Sun, 20 Oct 2019 16:56:10 +0000 (16:56 +0000)]
AMDGPU: Fix missing OPERAND_IMMEDIATE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375365
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Matt Arsenault [Sun, 20 Oct 2019 16:33:21 +0000 (16:33 +0000)]
AMDGPU: Add baseline tests for flat offset splitting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375364
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Matt Arsenault [Sun, 20 Oct 2019 16:26:26 +0000 (16:26 +0000)]
AMDGPU: Don't re-get the subtarget
It's already available in the class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375363
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George Rimar [Sun, 20 Oct 2019 14:47:17 +0000 (14:47 +0000)]
[yaml2obj][obj2yaml] - Do not create a symbol table by default.
This patch tries to resolve problems faced in D68943
and uses some of the code written by Konrad Wilhelm Kleine
in that patch.
Previously, yaml2obj tool always created a .symtab section.
This patch changes that. With it we only create it when
have a "Symbols:" tag in the YAML document or when
we need to create it because it is used by another section(s).
obj2yaml follows the new behavior and does not print "Symbols:"
anymore when there is no symbol table.
Differential revision: https://reviews.llvm.org/D69041
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375361
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Zinovy Nis [Sun, 20 Oct 2019 07:55:50 +0000 (07:55 +0000)]
Fix minor warning in DWARFVerifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375357
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Matt Arsenault [Sun, 20 Oct 2019 07:46:04 +0000 (07:46 +0000)]
AMDGPU: Don't error on calls to null or undef
Calls to constants should probably be generally handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375356
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Philip Reames [Sat, 19 Oct 2019 17:23:02 +0000 (17:23 +0000)]
[SCEV] Simplify umin/max of zext and sext of the same value
This is a common idiom which arises after induction variables are widened, and we have two or more exit conditions. Interestingly, we don't have instcombine or instsimplify support for this either.
Differential Revision: https://reviews.llvm.org/D69006
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375349
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Simon Pilgrim [Sat, 19 Oct 2019 16:58:24 +0000 (16:58 +0000)]
[X86] Pulled out helper to decode target shuffle element sentinel values to 'Zeroable' known undef/zero bits. NFCI.
Renamed 'resolveTargetShuffleAndZeroables' to 'resolveTargetShuffleFromZeroables' to match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375348
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Sanjay Patel [Sat, 19 Oct 2019 16:57:02 +0000 (16:57 +0000)]
[TargetLowering][DAGCombine][MSP430] add/use hook for Shift Amount Threshold (1/2)
Provides a TLI hook to allow targets to relax the emission of shifts, thus enabling
codegen improvements on targets with no multiple shift instructions and cheap selects
or branches.
Contributes to a Fix for PR43559:
https://bugs.llvm.org/show_bug.cgi?id=43559
Patch by: @joanlluch (Joan LLuch)
Differential Revision: https://reviews.llvm.org/D69116
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375347
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Nemanja Ivanovic [Sat, 19 Oct 2019 16:40:26 +0000 (16:40 +0000)]
[ARM] Add dependency on GlobalISel for unit tests to fix shared libs build
The unit test uses GlobalISel but the dependency is not listed in the
CMakeLists.txt file which causes failures in shared libs build with GCC.
This just adds the dependency.
Differential revision: https://reviews.llvm.org/D69064
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375346
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Sanjay Patel [Sat, 19 Oct 2019 16:29:32 +0000 (16:29 +0000)]
[MSP430] Shift Amount Threshold in DAGCombine (Baseline Tests); NFC
Patch by: @joanlluch (Joan LLuch)
Differential Revision: https://reviews.llvm.org/D69099
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375345
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Simon Pilgrim [Sat, 19 Oct 2019 13:18:02 +0000 (13:18 +0000)]
[X86][SSE] lowerV16I8Shuffle - tryToWidenViaDuplication - undef unpack args
tryToWidenViaDuplication lowers using the shuffle_v8i16(unpack_v16i8(shuffle_v8i16(x),shuffle_v8i16(x))) pattern, but the unpack only needs the even/odd 16i8 args if the original v16i8 shuffle mask references the even/odd elements - which isn't true for many extension style shuffles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375342
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Simon Pilgrim [Sat, 19 Oct 2019 11:53:48 +0000 (11:53 +0000)]
[X86][SSE] LowerUINT_TO_FP_i64 - only use HADDPD for size/fast-hops
We were always generating a single source HADDPD, but really we should only do this if shouldUseHorizontalOp says its a good idea.
Differential Revision: https://reviews.llvm.org/D69175
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375341
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Sylvestre Ledru [Sat, 19 Oct 2019 09:55:24 +0000 (09:55 +0000)]
Explicit in the doc the current list of projects (with easy copy and paste)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375339
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