Evandro Menezes [Fri, 16 Aug 2019 15:33:41 +0000 (15:33 +0000)]
[InstCombine] Simplify pow(2.0, itofp(y)) to ldexp(1.0, y)
Simplify `pow(2.0, itofp(y))` to `ldexp(1.0, y)`.
Differential revision: https://reviews.llvm.org/D65979
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369120
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Cyndy Ishida [Fri, 16 Aug 2019 15:30:48 +0000 (15:30 +0000)]
[TextAPI] Update reader to be supported by lib/Object
Summary:
To be able to use the TextAPI/Reader for tbd file consumption (by libObject)
it gets passed a MemoryBufferRef which isn't castable to MemoryBuffer.
Updated the tests to expect that input as well.
Reviewers: ributzka, steven_wu
Reviewed By: steven_wu
Subscribers: hiraditya, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66147
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369119
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David Green [Fri, 16 Aug 2019 15:13:37 +0000 (15:13 +0000)]
[ARM] MVE sext of a load is free
MVE also has some sext of loads, which will be free just as scalar
instructions are.
Differential Revision: https://reviews.llvm.org/D66008
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369118
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Roman Lebedev [Fri, 16 Aug 2019 15:10:41 +0000 (15:10 +0000)]
[InstCombine] Shift amount reassociation in bittest: trunc-of-shl (PR42399)
Summary:
This is continuation of D63829 / https://bugs.llvm.org/show_bug.cgi?id=42399
I thought naive pattern would solve my issue, but nope, it involved truncation,
thus more folds needed.. This isn't really the fold i'm interested in,
i need trunc-of-lshr, but i'we decided to start with `shl` because it's simpler.
In this case, no extra legality checks are needed:
https://rise4fun.com/Alive/CAb
We should be careful about not increasing instruction count,
since we need to produce `zext` because `and` is done in wider type.
Reviewers: spatel, nikic, xbolva00
Reviewed By: spatel
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66057
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369117
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Simon Pilgrim [Fri, 16 Aug 2019 14:47:59 +0000 (14:47 +0000)]
[X86][SSE] Add shuffled load tests from PR16739
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369116
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Simon Pilgrim [Fri, 16 Aug 2019 14:31:45 +0000 (14:31 +0000)]
Revert rL369112 : [X86][SSE] Add shuffled load tests from PR16739
I left typos in this from a WIP copy - reverting and I'll recommit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369115
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Luis Marques [Fri, 16 Aug 2019 14:27:50 +0000 (14:27 +0000)]
[RISCV] Convert registers from unsigned to Register
Only in public interfaces that have not yet been converted should there remain
registers with unsigned type.
Differential Revision: https://reviews.llvm.org/D66252
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369114
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Simon Pilgrim [Fri, 16 Aug 2019 14:26:11 +0000 (14:26 +0000)]
[X86][SSE] Add shuffled load tests from PR16739
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369112
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Paul Walker [Fri, 16 Aug 2019 14:17:52 +0000 (14:17 +0000)]
[AArch64InstrInfo] Stop getInstSizeInBytes returning non-zero for meta instructions.
Summary:
AArch64InstrInfo::getInstSizeInBytes is incorrectly treating meta
instructions (e.g. CFI_INSTRUCTION) as normal instructions and
giving them a size of 4.
This results in branch relaxation calculating block sizes wrong.
Branch relaxation also considers alignment and thus a single
mistake can result in later blocks being incorrectly sized even
when they themselves do not contain meta instructions.
The net result is we might not relax a branch whose destination is
not within range.
Reviewers: nickdesaulniers, peter.smith
Reviewed By: peter.smith
Subscribers: javed.absar, kristof.beyls, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66337
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369111
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Simon Pilgrim [Fri, 16 Aug 2019 14:05:46 +0000 (14:05 +0000)]
[X86] Remove unused include. NFCI.
We don't use anything from TargetOptions.h directly and its included via TargetLowering.h anyhow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369110
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David Green [Fri, 16 Aug 2019 13:42:39 +0000 (13:42 +0000)]
[ARM] Correct register for narrowing and widening MVE loads and stores.
The widening and narrowing MVE instructions like VLDRH.32 are only permitted to
use low tGPR registers. This means that if they are used for a stack slot,
where the register used is only decided during frame setup, we need to be able
to correctly pick a thumb1 register over a normal GPR.
This attempts to add the required logic into eliminateFrameIndex and
rewriteT2FrameIndex, only picking the FrameReg if it is a valid register for
the operands register class, and picking a valid scratch register for the
register class.
Differential Revision: https://reviews.llvm.org/D66285
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369108
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Sanjay Patel [Fri, 16 Aug 2019 13:31:23 +0000 (13:31 +0000)]
[x86] fix fdiv test; NFC
The test was just added with rL369106, but forgot to update the instruction
along with the test name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369107
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Sanjay Patel [Fri, 16 Aug 2019 13:23:52 +0000 (13:23 +0000)]
[x86] add tests for fdiv with variable operands; NFC
D66050 proposes to change the estimate sequence, but we
don't seem to have test coverage for the common case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369106
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Florian Hahn [Fri, 16 Aug 2019 13:19:29 +0000 (13:19 +0000)]
Revert [CodeGen] Do the Simple Early Return in block-placement pass to optimize the blocks
This reverts r368997 (git commit
2a903c0b679bae1919f9fc01f78e4bc6cff2add0)
It looks like this commit adds invalid predecessors to MBBs. The example
below fails the verifier after MachineBlockPlacement (run llc
-verify-machineinstrs):
@global.4 = external constant i8*
declare i32 @zot(...)
define i16* @snork.67() personality i8* bitcast (i32 (...)* @zot to i8*) {
bb:
invoke void undef()
to label %bb5 unwind label %bb4
bb4: ; preds = %bb
%tmp = landingpad { i8*, i32 }
catch i8* null
unreachable
bb5: ; preds = %bb
%tmp6 = load i32, i32* null, align 4
%tmp7 = icmp eq i32 %tmp6, 0
br i1 %tmp7, label %bb14, label %bb8
bb8: ; preds = %bb11, %bb5
invoke void undef()
to label %bb9 unwind label %bb11
bb9: ; preds = %bb8
%tmp10 = invoke i16* undef()
to label %bb14 unwind label %bb11
bb11: ; preds = %bb9, %bb8
%tmp12 = landingpad { i8*, i32 }
cleanup
catch i8* bitcast (i8** @global.4 to i8*)
%tmp13 = icmp ult i64 undef, undef
br i1 %tmp13, label %bb8, label %bb14
bb14: ; preds = %bb11, %bb9, %bb5
%tmp15 = phi i16* [ null, %bb5 ], [ null, %bb11 ], [ %tmp10, %bb9 ]
ret i16* %tmp15
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369104
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Bjorn Pettersson [Fri, 16 Aug 2019 13:16:48 +0000 (13:16 +0000)]
[DAGCombiner] Add simple folds for SMULFIX/UMULFIX/SMULFIXSAT
Summary:
Add the following DAGCombiner folds for mulfix being
one of SMULFIX/UMULFIX/SMULFIXSAT:
(mulfix x, undef, scale) -> 0
(mulfix x, 0, scale) -> 0
Also added canonicalization of constants to RHS.
Reviewers: RKSimon, craig.topper, spatel
Reviewed By: RKSimon
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66052
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369103
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Bjorn Pettersson [Fri, 16 Aug 2019 13:16:38 +0000 (13:16 +0000)]
[X86] Add test case for future MULFIX DAG combine folds. NFC
Add some test cases displaying the lack of DAG combine
folds for SMULFIX/UMULFIX/SMULFIXSAT when either
multiplicand is undef or zero.
It seems like widening vector legalization for X86 can
introduce fixed point multiplication of undef values.
So that is one way that such operations could appear
during ISel.
Multiplication with zero is probably more unlikely, and
could potentially be handled by InstCombine. But I do
not think it would hurt to do such folds in DAGCombiner.
This patch only adds the test case. The folds will be
added in a follow up patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369102
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David Green [Fri, 16 Aug 2019 13:06:49 +0000 (13:06 +0000)]
[ARM] Don't pretend we know how to generate MVE VLDn
We don't yet know how to generate these instructions for MVE. And in the case
of VLD3, we don't even have the instruction. For the moment don't tell the
vectoriser that we have VLD4, just to end up serialising the results.
Differential Revision: https://reviews.llvm.org/D66009
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369101
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Lewis Revill [Fri, 16 Aug 2019 12:00:56 +0000 (12:00 +0000)]
[RISCV] Allow parsing of bare symbols with offsets
This patch allows symbols followed by an expression for an offset to be
parsed as bare symbols.
Differential Revision: https://reviews.llvm.org/D57332
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369097
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Benjamin Kramer [Fri, 16 Aug 2019 10:59:18 +0000 (10:59 +0000)]
Revert "[CallGraph] Refine call graph for indirect calls with !callees metadata"
This reverts commit r369025. Crashes clang, test case is on the mailing
list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369096
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Lewis Revill [Fri, 16 Aug 2019 10:28:34 +0000 (10:28 +0000)]
[RISCV] Lower inline asm constraint A for RISC-V
This allows arguments with the constraint A to be lowered to input nodes
for RISC-V, which implies a memory address stored in a register.
This patch adds the minimal amount of code required to get operands with
the right constraints to compile.
https://reviews.llvm.org/D54296
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369095
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Simon Pilgrim [Fri, 16 Aug 2019 10:28:23 +0000 (10:28 +0000)]
[SLPVectorizer] Silence null dereference warning. NFCI.
cppcheck + MSVC analyzer both over zealously warn that we might dereference a null Bundle pointer - add an assertion to check for null to silence the warning, plus its a good idea to check that we succeeded in finding a schedule bundle anyway....
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369094
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Jeremy Morse [Fri, 16 Aug 2019 10:04:17 +0000 (10:04 +0000)]
[DebugInfo] Handle complex expressions with spills in LiveDebugValues
In r369026 we disabled spill-recognition in LiveDebugValues for anything
that has a complex expression. This is because it's hard to recover the
complex expression once the spill location is baked into it.
This patch re-enables spill-recognition and slightly adjusts the DBG_VALUE
insts that LiveDebugValues tracks: instead of tracking the last DBG_VALUE
for a variable, it tracks the last _unspilt_ DBG_VALUE. The spill-restore
code is then able to access and copy the original complex expression; but
the rest of LiveDebugValues has to be aware of the slight semantic shift,
and produce a new spilt location if a spilt location is propagated between
blocks.
The test added produces an incorrect variable location (see FIXME), which
will be the subject of future work.
Differential Revision: https://reviews.llvm.org/D65368
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369092
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Tim Northover [Fri, 16 Aug 2019 09:34:27 +0000 (09:34 +0000)]
AssumptionCache: remove old affected values after RAUW.
If they're left in the cache then they can't be removed efficiently when the
cache is notified to unlink a @llvm.assume call, and that can lead to values
from different functions entirely remaining there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369091
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Florian Hahn [Fri, 16 Aug 2019 09:15:02 +0000 (09:15 +0000)]
[ValueTracking] Fix recurrence detection to check both PHI operands.
Summary:
Currently we fail to compute known bits for recurrences where the
first incoming value is the start value of the recurrence.
Instead of exiting the loop when the first incoming value is not
the step of the recurrence, continue to check the second incoming
value.
The original code uses a loop to handle both cases, but incorrectly
exits instead of continuing.
Reviewers: lebedev.ri, spatel, nikic
Reviewed By: lebedev.ri
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369088
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Craig Topper [Fri, 16 Aug 2019 04:47:44 +0000 (04:47 +0000)]
[X86] Manually reimplement getTargetInsertSubreg in X86DAGToDAGISel::matchBitExtract so we can call insertDAGNode on the target constant.
This is needed to maintain the topological sort order.
Fixes PR42992.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369084
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Igor Kudrin [Fri, 16 Aug 2019 03:40:04 +0000 (03:40 +0000)]
Remove the temporary code. NFC.
That should have been done in rL368156 but somehow was missed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369082
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Nico Weber [Fri, 16 Aug 2019 02:21:21 +0000 (02:21 +0000)]
Revert r368987, it caused PR43016.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369080
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Chen Zheng [Fri, 16 Aug 2019 01:52:50 +0000 (01:52 +0000)]
[PowerPC] add testcases for folding frame offset - NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369077
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Nico Weber [Fri, 16 Aug 2019 00:04:48 +0000 (00:04 +0000)]
gn build: Merge r369064
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369074
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Nico Weber [Fri, 16 Aug 2019 00:04:42 +0000 (00:04 +0000)]
gn build: Merge r369061
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369073
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Jonas Devlieghere [Thu, 15 Aug 2019 23:53:15 +0000 (23:53 +0000)]
[DebugLine] Don't try to guess the path style
In r368879 I made an attempt to guess the path style from the files in
the line table. After some consideration I now think this is a poor
idea. This patch undoes that behavior and instead adds an optional
argument to specify the path style. This allows us to make that decision
elsewhere where we have more information. In case of LLDB based on the
Unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369072
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Volkan Keles [Thu, 15 Aug 2019 23:45:45 +0000 (23:45 +0000)]
[GlobalISel] CSEMIRBuilder: Add support for G_GEP
Summary:
This patch adds G_GEP to `shouldCSEOpc` so that it can be CSEd. It also refactors
`translateGetElementPtr` by replacing `createGenericVirtualRegister` calls with types.
Reviewers: aditya_nandakumar, arsenm, dsanders, paquette, aemerson
Reviewed By: aditya_nandakumar
Subscribers: wdng, rovka, javed.absar, hiraditya, Petar.Avramovic, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66316
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369070
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Eli Friedman [Thu, 15 Aug 2019 23:35:53 +0000 (23:35 +0000)]
[ARM][LowOverheadLoops] Fix generated code for "revert".
Two issues:
1. t2CMPri shouldn't use CPSR if it isn't predicated. This doesn't
really have any visible effect at the moment, but it might matter in the
future.
2. The t2CMPri generated for t2WhileLoopStart might need to use a
register that isn't LR.
My team found this because we have a patch to track register liveness
late in the pass pipeline. I'll look into upstreaming it to help catch
issues like this earlier.
Differential Revision: https://reviews.llvm.org/D66243
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369069
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David L. Jones [Thu, 15 Aug 2019 23:24:14 +0000 (23:24 +0000)]
[NewPM][PassInstrumentation] Fix test added in r369024.
llvm-lto2 doesn't treat "-" as stdout, so the test added in r369024 creates a
file named "-.0". This patch makes the test look more like other tests that use
llvm-lto2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369066
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Jonas Devlieghere [Thu, 15 Aug 2019 23:07:20 +0000 (23:07 +0000)]
[Support] Re-introduce the RWMutexImpl for macOS < 10.12
In r369018, Benjamin replaced the custom RWMutex implementation with
their C++14 counterpart. Unfortunately, std::shared_timed_mutex is only
available on macOS 10.12 and later. This prevents LLVM from compiling
even on newer versions of the OS when you have an older deployment
target. This patch reintroduced the old RWMutexImpl but guards it by the
macOS availability macro.
Differential revision: https://reviews.llvm.org/D66313
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369064
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Evgeniy Stepanov [Thu, 15 Aug 2019 22:58:28 +0000 (22:58 +0000)]
Move isPointerOffset function to ValueTracking (NFC).
Summary: To be reused in MemTag sanitizer.
Reviewers: pcc, vitalybuka, ostannard
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66165
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369062
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Diego Trevino Ferrer [Thu, 15 Aug 2019 22:54:09 +0000 (22:54 +0000)]
[Bugpoint redesign] Added Pass to Remove Global Variables
Summary:
This pass tries to remove Global Variables, as well as their derived uses. For example if a variable `@x` is used by `%call1` and `%call2`, both these uses and the definition of `@x` are deleted. Moreover if `%call1` or `%call2` are used elsewhere those uses are also deleted, and so on recursively.
I'm still uncertain if this pass should remove derived uses, I'm open to suggestions.
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64176
llvm-svn: 368918
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369061
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Diego Trevino Ferrer [Thu, 15 Aug 2019 22:39:43 +0000 (22:39 +0000)]
[Bugpoint redesign] Output option can now print to STDOUT
Summary:
This also changes all the outs() statements to errs() so the output and
progress streams don't get mixed.
This has been added because D64176 had flaky tests, which I believe were because the reduced file was being catted into `FileCheck`, instead of being pass from STDOUT directly.
Reviewers: chandlerc, dblaikie, xbolva00
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66314
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369060
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Jonas Devlieghere [Thu, 15 Aug 2019 22:24:21 +0000 (22:24 +0000)]
Revert "[Support] Re-introduce the RWMutexImpl for macOS < 10.12"
This doesn't work (yet).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369059
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Hubert Tong [Thu, 15 Aug 2019 22:23:53 +0000 (22:23 +0000)]
[AIX] For XL, pick GCC-compatible std & default warning options
Summary:
LLVM now requires C++14. For IBM XL compilers with C++14 support, this
can be done with the GCC-style options. The relevant block in the CMake
file is split up into smaller parts as part of this patch to allow the
common cases to be shared.
Reviewers: jfb, jasonliu, daltenty, xingxue
Reviewed By: jfb, xingxue
Subscribers: mstorsjo, mgorny, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66256
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369058
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Philip Reames [Thu, 15 Aug 2019 22:21:14 +0000 (22:21 +0000)]
[SDAG] Minor code cleanup/standardization of atomic accessors [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369057
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Jonas Devlieghere [Thu, 15 Aug 2019 22:19:38 +0000 (22:19 +0000)]
[Support] Re-introduce the RWMutexImpl for macOS < 10.12
In r369018, Benjamin replaced the custom RWMutex implementation with
their C++14 counterpart. Unfortunately, std::shared_timed_mutex is only
available on macOS 10.12 and later. This prevents LLVM from compiling
even on newer versions of the OS when you have an older deployment
target. This patch reintroduced the old RWMutexImpl but guards it by the
macOS availability macro.
Differential revision: https://reviews.llvm.org/rL369018
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369056
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Jinsong Ji [Thu, 15 Aug 2019 22:07:59 +0000 (22:07 +0000)]
[Utils][NFC] Copy bisect usage documents from commit msg into script.
Copy the message into script, so that new users won't need to dig into
commit messages to figure out how to use.
The message are copied directly from Michael's commit message in
https://reviews.llvm.org/rL214610.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369054
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Evgeniy Stepanov [Thu, 15 Aug 2019 22:03:55 +0000 (22:03 +0000)]
Add missing MIR serialization text for AArch64II::MO_TAGGED.
Reviewers: pcc
Subscribers: javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66312
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369053
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Alina Sbirlea [Thu, 15 Aug 2019 21:20:08 +0000 (21:20 +0000)]
[MemorySSA] Remove restrictive asserts.
The verification I added has overly restrictive asserts.
Unreachable blocks can have any incoming value in practice, after an
update due to a "replaceAllUses" call when the repalced entry is
LiveOnEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369050
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Nico Weber [Thu, 15 Aug 2019 21:00:33 +0000 (21:00 +0000)]
gn build: Merge r369039
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369047
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Nico Weber [Thu, 15 Aug 2019 21:00:26 +0000 (21:00 +0000)]
gn build: Merge r369018
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369046
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JF Bastien [Thu, 15 Aug 2019 20:38:42 +0000 (20:38 +0000)]
Fix nm on GCC 5.1 after the C++14 move
Summary:
As in D66306, fix the invocation of std::sort with std::function by not using
std::function, since it's easier to read and is broken in libstdc++ from GCC 5.1
(see https://gcc.gnu.org/PR65942).
Reviewers: thakis
Subscribers: jkorous, mgrang, dexonsmith, rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66310
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369045
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Daniel Sanders [Thu, 15 Aug 2019 19:22:08 +0000 (19:22 +0000)]
Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).
Partial reverts in:
X86FrameLowering.cpp - Some functions return unsigned and arguably should be MCRegister
X86FixupLEAs.cpp - Some functions return unsigned and arguably should be MCRegister
X86FrameLowering.cpp - Some functions return unsigned and arguably should be MCRegister
HexagonBitSimplify.cpp - Function takes BitTracker::RegisterRef which appears to be unsigned&
MachineVerifier.cpp - Ambiguous operator==() given MCRegister and const Register
PPCFastISel.cpp - No Register::operator-=()
PeepholeOptimizer.cpp - TargetInstrInfo::optimizeLoadInstr() takes an unsigned&
MachineTraceMetrics.cpp - MachineTraceMetrics lacks a suitable constructor
Manual fixups in:
ARMFastISel.cpp - ARMEmitLoad() now takes a Register& instead of unsigned&
HexagonSplitDouble.cpp - Ternary operator was ambiguous between unsigned/Register
HexagonConstExtenders.cpp - Has a local class named Register, used llvm::Register instead of Register.
PPCFastISel.cpp - PPCEmitLoad() now takes a Register& instead of unsigned&
Depends on D65919
Reviewers: arsenm, bogner, craig.topper, RKSimon
Reviewed By: arsenm
Subscribers: RKSimon, craig.topper, lenary, aemerson, wuzish, jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65962
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369041
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Krzysztof Parzyszek [Thu, 15 Aug 2019 19:20:09 +0000 (19:20 +0000)]
[Hexagon] Fix instruction selection for vselect v4i8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369040
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Diego Trevino Ferrer [Thu, 15 Aug 2019 19:08:15 +0000 (19:08 +0000)]
Revert [Bugpoint redesign] Added Pass to Remove Global Variables
This reverts r368918 because it was unstable!
It broke these builds:
* http://lab.llvm.org:8011/builders/lld-x86_64-ubuntu-fast/builds/4649
* http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29966
* http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29964
But surprisingly this passed:
* http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29965
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369039
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Matt Arsenault [Thu, 15 Aug 2019 18:58:25 +0000 (18:58 +0000)]
MVT: Add v3i16/v3f16 vectors
AMDGPU has some buffer intrinsics which theoretically could use
this. Some of the generated tables include the 3 and 4 element vector
versions of these rounded to 64-bits, which is ambiguous. Add these to
help the table disambiguate these.
Assertion change is for the path odd sized vectors now take for R600.
v3i16 is widened to v4i16, which then needs to be promoted to v4i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369038
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Philip Reames [Thu, 15 Aug 2019 18:49:39 +0000 (18:49 +0000)]
[NFC] Add a couple of dump routines for RegisterPressure helper classes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369037
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Florian Hahn [Thu, 15 Aug 2019 18:39:56 +0000 (18:39 +0000)]
[ValueTracking] Look through ptrmask intrinsics during getUnderlyingObject.
Reviewers: nlopes, efriedma, hfinkel, sanjoy, aqjune, jdoerfert
Reviewed By: jdoerfert
Subscribers: jdoerfert, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61669
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369036
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David Bolvansky [Thu, 15 Aug 2019 18:23:37 +0000 (18:23 +0000)]
[NFC] Added tests for 'select with ctlz to cttz' fold
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369032
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Craig Topper [Thu, 15 Aug 2019 18:23:37 +0000 (18:23 +0000)]
[X86] Add custom type legalization for bitcasting mmx to v2i32/v4i16/v8i8 to use movq2dq instead of going through memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369031
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Siva Chandra [Thu, 15 Aug 2019 18:08:11 +0000 (18:08 +0000)]
Add LLVMLibC proposal to docs/index.rst.
Reviewers: rupprecht
Subscribers: arphaman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66307
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369030
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Benjamin Kramer [Thu, 15 Aug 2019 18:06:30 +0000 (18:06 +0000)]
Link libpthread into LLVMCore.so
After r369018 the compiler can inline pthread calls into users of
RWMutex.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369029
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Pavel Labath [Thu, 15 Aug 2019 17:52:40 +0000 (17:52 +0000)]
Revert "MemoryBuffer: Add a missing error-check to getOpenFileImpl"
This reverts commit r368977 because it broke a couple of tests in lldb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369027
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Jeremy Morse [Thu, 15 Aug 2019 17:49:46 +0000 (17:49 +0000)]
[DebugInfo] Avoid crash from dropped fragments in LiveDebugValues
This patch avoids a crash caused by DW_OP_LLVM_fragments being dropped
from DIExpressions by LiveDebugValues spill-restore code. The appearance
of a previously unseen fragment configuration confuses LDV, as documented
in PR42773, and reproduced by the test function this patch adds (Crashes
on a x86_64 debug build).
To avoid this, on spill restore, we now use fragment information from the
spilt-location-expression.
In addition, when spilling, we now don't spill any DBG_VALUE with a complex
expression, as it can't be safely restored and will definitely lead to an
incorrect variable location. The discussion of this is in D65368.
Differential Revision: https://reviews.llvm.org/D66284
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369026
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Mark Lacey [Thu, 15 Aug 2019 17:47:53 +0000 (17:47 +0000)]
[CallGraph] Refine call graph for indirect calls with !callees metadata
For indirect call sites having a small set of possible callees,
!callees metadata can be used to indicate what those callees are.
This patch updates the call graph and lazy call graph analyses so
that they consider this metadata when encountering call sites. For
the call graph, it adds a new external call graph node to the graph
for each unique !callees metadata node. A call graph edge connects
an indirect call site with the external node associated with the
!callees metadata that is attached to it. And there is an edge from
this external node to each of the callees indicated by the metadata.
Similarly, for the lazy call graph, the patch adds Ref edges from a
caller to the possible callees indicated by the metadata.
The primary purpose of the patch is to facilitate iterating over the
functions in a module such that all of the callees indicated by a
given !callees metadata node will be visited prior to the functions
containing call sites annotated by that node. This property is
required by optimizations performing a bottom-up traversal of the
SCC DAG. For example, the inliner can be made to inline through an
indirect call. If the call site is annotated with !callees metadata,
this patch ensures that the inliner will have visited all of the
callees prior to the caller, allowing it to reliably compute the
cost of inlining one or more of the potential callees.
Original patch by @mssimpso. I've made some small changes to get it
to apply, build, and pass tests on the top of tree, as well as
some minor tweaks to formatting and functionality.
Subscribers: mehdi_amini, hiraditya, llvm-commits, mssimpso
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D39339
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369025
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Taewook Oh [Thu, 15 Aug 2019 17:47:44 +0000 (17:47 +0000)]
[NewPM][PassInstrumentation] IR printing support for (Thin)LTO
Summary: IR printing has not been correctly supported with (Thin)LTO if the new pass manager is enabled. Previously we only get outputs from backend(codegen) passes, as they are still under legacy pass manager even when the new pass manager is enabled. This patch addresses the issue and enables IR printing for optimization passes with new pass manager + (Thin)LTO setting.
Reviewers: fedor.sergeev, philip.pfaffe
Subscribers: mehdi_amini, inglorion, hiraditya, steven_wu, dexonsmith, dang, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66253
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369024
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Craig Topper [Thu, 15 Aug 2019 17:29:42 +0000 (17:29 +0000)]
[X86] Improve cost model for subvector extraction of less than 128-bit vectors
Now that we're using widening legalization. We need to improve our extract_subvector cost model for these types. This patch begins by modeling these as a subvector extract followed by a permute. I've left FIXMEs in the code for future improvements.
Differential Revision: https://reviews.llvm.org/D65892
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369022
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Benjamin Kramer [Thu, 15 Aug 2019 16:55:23 +0000 (16:55 +0000)]
[Support] Base RWMutex on std::shared_timed_mutex (C++14)
This should have the same semantics. We use std::shared_mutex instead on
MSVC and C++17, std::shared_timed_mutex is less efficient than our
custom implementation on Windows, std::shared_mutex should be faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369018
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Simon Pilgrim [Thu, 15 Aug 2019 16:34:23 +0000 (16:34 +0000)]
[LLVM][Alignment] Fix MSVC potential division by 0 warning (PR42911)
Original Patch by @gchatelet (Guillaume Chatelet)
Differential Revision: https://reviews.llvm.org/D65859
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369016
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Krzysztof Parzyszek [Thu, 15 Aug 2019 16:13:17 +0000 (16:13 +0000)]
[Hexagon] Generate vector min/max for HVX
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369014
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Jonas Devlieghere [Thu, 15 Aug 2019 15:54:37 +0000 (15:54 +0000)]
[llvm] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369013
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Siva Chandra [Thu, 15 Aug 2019 15:50:42 +0000 (15:50 +0000)]
Add a proposal for a libc project under the LLVM umbrella.
Reviewers: chandlerc, dlj, echristo, hfinkel, jfb, zturner
Subscribers: dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64939
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369012
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Justin Bogner [Thu, 15 Aug 2019 15:36:13 +0000 (15:36 +0000)]
[cmake] install_symlink should obey DESTDIR unconditionally
Setting DESTDIR was erroneously buried under a condition here - if
it's set it should always be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369011
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Andrea Di Biagio [Thu, 15 Aug 2019 15:27:40 +0000 (15:27 +0000)]
[MCA] Slightly refactor class RetireControlUnit, and add the ability to override the mask of used buffered resources in class mca::Instruction. NFCI
This patch teaches the RCU how to peek 'next' RCUTokens. A new method has been
added to the RetireControlUnit class with the goal of minimizing the complexity
of follow-up patches that will enable macro-fusion support in mca.
This patch also adds method Instruction::getNumMicroOpcodes() to simplify common
interactions with the instruction descriptor (a pattern quite common in some
pipeline stages).
Added the ability to override the default set of consumed scheduler resources
(this -again- is to simplify future patches that add support for macro-op fusion).
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369010
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Simon Pilgrim [Thu, 15 Aug 2019 14:40:37 +0000 (14:40 +0000)]
Remove SmallBitVector.h include. NFCI.
SmallBitVector/BitVector types aren't used at all in the cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369008
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Simon Pilgrim [Thu, 15 Aug 2019 14:39:28 +0000 (14:39 +0000)]
Remove BitVector.h include. NFCI.
BitVector type isn't used at all in the cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369007
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Jinsong Ji [Thu, 15 Aug 2019 14:32:51 +0000 (14:32 +0000)]
[PowerPC] Use xxleqv to set all one vector IMM(-1).
Summary:
xxspltib/vspltisb are 3 cycle PM instructions,
xxleqv is 2 cycle ALU instruction.
We should use xxleqv to set all one vectors.
Reviewers: hfinkel, nemanjai, steven.zhang
Subscribers: hiraditya, kbarton, MaskRay, shchenz, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65529
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369006
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George Rimar [Thu, 15 Aug 2019 13:39:58 +0000 (13:39 +0000)]
[lib/Object] - Remove objdump-file-header.test
objdump-file-header.test is placed in the wrong folder.
I removed it and updated the existent llvm-objdump test cases with
the updated content of the file removed.
Differential revision: https://reviews.llvm.org/D66288
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369004
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Simon Pilgrim [Thu, 15 Aug 2019 13:07:14 +0000 (13:07 +0000)]
[DAGCombine] MergeConsecutiveStores - fix cppcheck/MSVC extension warning. NFCI.
Set the StartIdx type to size_t so that it matches the StoreNodes SmallVector size() and index types.
Silences the MSVC analyzer warning that unsigned increment might overflow before exceeding size_t on 64-bit targets - this isn't likely to happen but it means we use consistent types and reduces the warning "noise" a little.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368998
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Kang Zhang [Thu, 15 Aug 2019 13:05:16 +0000 (13:05 +0000)]
[CodeGen] Do the Simple Early Return in block-placement pass to optimize the blocks
Summary:
This patch has trigger a bug of r368339, and the r368339 has been reverted, So upstream this patch again.
In `block-placement` pass, it will create some patterns for unconditional we can do the simple early retrun.
But the `early-ret` pass is before `block-placement`, we don't want to run it again.
This patch is to do the simple early return to optimize the blocks at the last of `block-placement`.
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D63972
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368997
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David Green [Thu, 15 Aug 2019 12:54:47 +0000 (12:54 +0000)]
[ARM] Fix alignment checks for BE VLDRH
We need to allow any alignment at least 2, not just exactly 2, so that the big
endian loads and stores can be selected successfully. I've also added extra BE
testing for the load and store tests.
Thanks to Oliver for the report.
Differential Revision: https://reviews.llvm.org/D66222
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368996
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Sanjay Patel [Thu, 15 Aug 2019 12:43:15 +0000 (12:43 +0000)]
[SDAG][x86] check for relaxed math when matching an FP reduction
If the last step in an FP add reduction allows reassociation and doesn't care
about -0.0, then we are free to recognize that computation as a reduction
that may reorder the intermediate steps.
This is requested directly by PR42705:
https://bugs.llvm.org/show_bug.cgi?id=42705
and solves PR42947 (if horizontal math instructions are actually faster than
the alternative):
https://bugs.llvm.org/show_bug.cgi?id=42947
Differential Revision: https://reviews.llvm.org/D66236
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368995
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Andrea Di Biagio [Thu, 15 Aug 2019 12:39:55 +0000 (12:39 +0000)]
[MCA] Slightly refactor the logic in ResourceManager. NFCI
This patch slightly changes the API in the attempt to simplify resource buffer
queries. It is done in preparation for a patch that will enable support for
macro fusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368994
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Florian Hahn [Thu, 15 Aug 2019 12:13:02 +0000 (12:13 +0000)]
[ValueTracking] Add MustPreserveNullness arg to functions analyzing calls. (NFC)
Some uses of getArgumentAliasingToReturnedPointer and
isIntrinsicReturningPointerAliasingArgumentWithoutCapturing require the
calls/intrinsics to preserve the nullness of the argument.
For alias analysis, the nullness property does not really come into
play.
This patch explicitly sets it to true. In D61669, the alias analysis
uses will be switched to not require preserving nullness.
Reviewers: nlopes, efriedma, hfinkel, sanjoy, aqjune, jdoerfert
Reviewed By: jdoerfert
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64150
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368993
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Benjamin Kramer [Thu, 15 Aug 2019 11:49:00 +0000 (11:49 +0000)]
[ADT] PointerUnion: Use C++14 constexpr std::min
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368992
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Benjamin Kramer [Thu, 15 Aug 2019 10:56:05 +0000 (10:56 +0000)]
Replace llvm::integer_sequence and friends with the C++14 standard version
The implementation in libc++ takes O(1) compile time, ours was O(n).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368990
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Benjamin Kramer [Thu, 15 Aug 2019 10:55:25 +0000 (10:55 +0000)]
Bump llvm-go to C++14
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368989
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David Green [Thu, 15 Aug 2019 10:41:42 +0000 (10:41 +0000)]
[ARM] MVE predicate store patterns
Stack loads and stores were already working, but direct stores were not. This
adds the patterns for them, same as predicate loads.
Differential Revision: https://reviews.llvm.org/D66213
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368988
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Sander de Smalen [Thu, 15 Aug 2019 10:34:16 +0000 (10:34 +0000)]
[AArch64] Change location of frame-record within callee-save area.
This patch changes the location of the frame-record (FP, LR) to the
bottom of the callee-saved area. According to the AAPCS the location of
the frame-record within the stackframe is unspecified (section 5.2.3 The
Frame Pointer), so the compiler should be free to choose a different
location.
The reason for changing the location of the frame-record is to prepare
the frame for allocating an SVE area below the callee-saves. This way the
compiler can use the VL-scaled addressing modes to directly access SVE
objects from the frame-pointer.
: :
| stack | | stack |
| args | | args |
+-------+ +-------+
| x30 | | x19 |
| x29 | | x20 |
FP -> |- - - -| | x21 |
| x19 | ==> | x22 |
| x20 | |- - - -|
| x21 | | x30 |
| x22 | | x29 |
+-------+ +-------+ <- FP
|///////| |///////| // realignment gap
|- - - -| |- - - -|
|spills/| |spills/|
| locals| | locals|
SP -> +-------+ +-------+ <- SP
Things to point out:
- The algorithm to find a paired register should be prevented from
accidentally pairing some callee-saved register with LR that is not
FP, since they should always be paired together when the frame
has a frame-record.
- For Darwin platforms the location of the frame-record is unchanged,
since the unwind encoding does not allow for encoding this position
dynamically and other tools currently depend on the former layout.
Reviewers: efriedma, rovka, rengolin, thegameg, greened, t.p.northover
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D65653
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368987
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Florian Hahn [Thu, 15 Aug 2019 10:12:26 +0000 (10:12 +0000)]
Add ptrmask intrinsic
This patch adds a ptrmask intrinsic which allows masking out bits of a
pointer that must be zero when accessing it, because of ABI alignment
requirements or a restriction of the meaningful bits of a pointer
through the data layout.
This avoids doing a ptrtoint/inttoptr round trip in some cases (e.g. tagged
pointers) and allows us to not lose information about the underlying
object.
Reviewers: nlopes, efriedma, hfinkel, sanjoy, jdoerfert, aqjune
Reviewed by: sanjoy, jdoerfert
Differential Revision: https://reviews.llvm.org/D59065
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368986
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Russell Gallop [Thu, 15 Aug 2019 10:12:11 +0000 (10:12 +0000)]
Revert rL368939 "Remove LVALUE / RVALUE workarounds"
This reverts commit
cad8356d699b36c73abb267f65db575ddacbd652.
To unbreak Windows bots
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368985
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Sven van Haastregt [Thu, 15 Aug 2019 10:05:22 +0000 (10:05 +0000)]
[Support] Fix Wundef warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368984
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Chris Jackson [Thu, 15 Aug 2019 09:45:09 +0000 (09:45 +0000)]
[llvm-objcopy] Allow 'protected' visibility to be set when using
add-symbol
Reviewers: Maskray, rupprecht
Differential Revision: https://reviews.llvm.org/D65891
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368982
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David Green [Thu, 15 Aug 2019 09:26:51 +0000 (09:26 +0000)]
[ARM] MVE trunc to i1 vectors
This adds patterns for selecting trunc instructions from full vectors to i1's
vectors.
Differential Revision: https://reviews.llvm.org/D66201
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368981
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Florian Hahn [Thu, 15 Aug 2019 08:42:12 +0000 (08:42 +0000)]
[InstCombine] Precommit test case for D66216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368978
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Pavel Labath [Thu, 15 Aug 2019 08:20:15 +0000 (08:20 +0000)]
MemoryBuffer: Add a missing error-check to getOpenFileImpl
Summary:
In case the function was called with a desired read size *and* the file
was not an "mmap()" candidate, the function was falling back to a
"pread()", but it was failing to check the result of that system call.
This meant that the function would return "success" even though the read
operation failed, and it returned a buffer full of uninitialized memory.
Reviewers: rnk, dblaikie
Subscribers: kristina, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66224
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368977
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Seiya Nuta [Thu, 15 Aug 2019 07:22:04 +0000 (07:22 +0000)]
[llvm-readobj][MachO] Fix section type printing
Summary:
Currently, llvm-readobj mistakenly decodes section type as section attribute.
This patch fixes the bug and affected tests.
Reviewers: JDevlieghere, jhenderson, rupprecht, alexshap, echristo
Reviewed By: jhenderson, rupprecht, alexshap, echristo
Subscribers: javed.absar, rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66075
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368974
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Dorit Nuzman [Thu, 15 Aug 2019 07:12:14 +0000 (07:12 +0000)]
[LV] fold-tail predication should be respected even with assume_safety
assume_safety implies that loads under "if's" can be safely executed
speculatively (unguarded, unmasked). However this assumption holds only for the
original user "if's", not those introduced by the compiler, such as the
fold-tail "if" that guards us from loading beyond the original loop trip-count.
Currently the combination of fold-tail and assume-safety pragmas results in
ignoring the fold-tail predicate that guards the loads, generating unmasked
loads. This patch fixes this behavior.
Differential Revision: https://reviews.llvm.org/D66106
Reviewers: Ayal, hsaito, fhahn
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368973
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Craig Topper [Thu, 15 Aug 2019 06:46:30 +0000 (06:46 +0000)]
[X86] Add isel pattern to match VZEXT_MOVL and a v2i64 scalar_to_vector bitcasted from x86mmx to MOVQ2DQ.
We already had the pattern for just the scalar to vector and bitcast,
but not the case where we wanted zeroes in the high half of the xmm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368972
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Craig Topper [Thu, 15 Aug 2019 06:46:26 +0000 (06:46 +0000)]
[X86] Make sure load is non-volatile in the MMX_X86movdq2q (loadv2i64) isel pattern.
This pattern will narrow the load so we should make sure its not
volatile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368971
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Craig Topper [Thu, 15 Aug 2019 05:52:02 +0000 (05:52 +0000)]
[X86] Remove unneeded isel pattern for v4f32->v4i32 fp_to_sint and conversion to MMX.
fp_to_sint is turned into X86cvttp2si during isel preprocessing.
The other redundant isel patterns were removed previously, but I
missed this one because its in the MMX td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368968
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Craig Topper [Thu, 15 Aug 2019 05:51:58 +0000 (05:51 +0000)]
[X86] Disable custom type legalization for v2i32/v4i16/v8i8->i64.
The default legalization can take care of this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368967
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Craig Topper [Thu, 15 Aug 2019 05:51:54 +0000 (05:51 +0000)]
[X86] Disable custom type legalization for v2i32/v4i16/v8i8->f64 bitcast.
The generic legalization handles this in the same way so just use
that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368966
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Craig Topper [Thu, 15 Aug 2019 05:51:50 +0000 (05:51 +0000)]
[X86] Remove some unreachable code from LowerBITCAST.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368965
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