James Molloy [Fri, 11 Dec 2015 10:04:51 +0000 (10:04 +0000)]
[InstCombine] Make MatchBSwap also match bit reversals
MatchBSwap has most of the functionality to match bit reversals already. If we switch it from looking at bytes to individual bits and remove a few early exits, we can extend the main recursive function to match any sequence of ORs, ANDs and shifts that assemble a value from different parts of another, base value. Once we have this bit->bit mapping, we can very simply detect if it is appropriate for a bswap or bitreverse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255334
91177308-0d34-0410-b5e6-
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Maxim Ostapenko [Fri, 11 Dec 2015 07:40:25 +0000 (07:40 +0000)]
Revert previous test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255331
91177308-0d34-0410-b5e6-
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Maxim Ostapenko [Fri, 11 Dec 2015 07:31:29 +0000 (07:31 +0000)]
This is a test commit to check my commit access works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255330
91177308-0d34-0410-b5e6-
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Xinliang David Li [Fri, 11 Dec 2015 06:53:53 +0000 (06:53 +0000)]
[PGO] Read VP raw data without depending on the Value field
Before this patch, each function's on-disk VP data is 'pointed'
to by the Value field of per-function ProfileData structue, and
read relies on this field (relocated with ValueDataDelta field)
to read the value data. However this means the Value field needs
to be updated during runtime before dumping, which creates undesirable
data races.
With this patch, the reading of VP data no longer depends on Value
field. There is no format change. ValueDataDelta header field becomes
obsolute but will be kept for compatibility reason (will be removed
next time the raw format change is needed).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255329
91177308-0d34-0410-b5e6-
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Hans Wennborg [Fri, 11 Dec 2015 00:58:32 +0000 (00:58 +0000)]
Fix build after r255319.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255322
91177308-0d34-0410-b5e6-
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Eric Christopher [Fri, 11 Dec 2015 00:51:59 +0000 (00:51 +0000)]
Fix a spurious if.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255321
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 11 Dec 2015 00:49:47 +0000 (00:49 +0000)]
[LazyValueInfo] Stop inserting overdefined values into ValueCache to
reduce memory usage.
Previously, LazyValueInfoCache inserted overdefined lattice values into
both ValueCache and OverDefinedCache. This wasn't necessary and was
causing LazyValueInfo to use an excessive amount of memory in some cases.
This patch changes LazyValueInfoCache to insert overdefined values only
into OverDefinedCache. The memory usage decreases by 70 to 75% when one
of the files in llvm is compiled.
rdar://problem/
11388615
Differential revision: http://reviews.llvm.org/D15391
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255320
91177308-0d34-0410-b5e6-
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Kyle Butt [Fri, 11 Dec 2015 00:47:36 +0000 (00:47 +0000)]
[PPC]: Peephole optimize small accesss to aligned globals.
Access to aligned globals gives us a chance to peephole optimize nonzero
offsets. If a struct is 4 byte aligned, then accesses to bytes 0-3 won't
overflow the available displacement. For example:
addis 3, 2, b4v@toc@ha
addi 4, 3, b4v@toc@l
lbz 5, b4v@toc@l(3) ; This is the result of the current peephole
lbz 6, 1(4) ; optimizer
lbz 7, 2(4)
lbz 8, 3(4)
If b4v is 4-byte aligned, we can skip using register 4 because we know
that b4v@toc@l+{1,2,3} won't overflow 32K, and instead generate:
addis 3, 2, b4v@toc@ha
lbz 4, b4v@toc@l(3)
lbz 5, b4v@toc@l+1(3)
lbz 6, b4v@toc@l+2(3)
lbz 7, b4v@toc@l+3(3)
Saving a register and an addition.
Larger alignments allow larger structures/arrays to be optimized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255319
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Hans Wennborg [Fri, 11 Dec 2015 00:43:42 +0000 (00:43 +0000)]
Check in the script for building Win snapshots
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255318
91177308-0d34-0410-b5e6-
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Vedant Kumar [Fri, 11 Dec 2015 00:40:05 +0000 (00:40 +0000)]
[ProfileData] clang-format TextInstrProfReader::hasFormat. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255317
91177308-0d34-0410-b5e6-
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Cong Hou [Fri, 11 Dec 2015 00:31:39 +0000 (00:31 +0000)]
[X86][SSE] Update the cost table for integer-integer conversions on SSE2/SSE4.1.
Previously in the conversion cost table there are no entries for integer-integer
conversions on SSE2. This will result in imprecise costs for certain vectorized
operations. This patch adds those entries for SSE2 and SSE4.1. The cost numbers
are counted from the result of running llc on the new test case in this patch.
Differential revision: http://reviews.llvm.org/D15132
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255315
91177308-0d34-0410-b5e6-
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Xinliang David Li [Thu, 10 Dec 2015 23:48:05 +0000 (23:48 +0000)]
Format fix (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255313
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 22:29:26 +0000 (22:29 +0000)]
s/need/needs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255306
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 22:09:06 +0000 (22:09 +0000)]
Fix (bitcast (fabs x)), (bitcast (fneg x)) and (bitcast (fcopysign cst,
x)) combines for ppc_fp128, since signbit computation is more
complicated.
Discussion thread:
http://lists.llvm.org/pipermail/llvm-dev/2015-November/092863.html
Patch by Tim Shen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255305
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Eric Christopher [Thu, 10 Dec 2015 22:04:11 +0000 (22:04 +0000)]
Attempt to fix the ReST compilation to html of the C API docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255304
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 21:47:38 +0000 (21:47 +0000)]
More non-ascii quote characters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255303
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 21:46:24 +0000 (21:46 +0000)]
Clarify some of the wording on adding a new subcomponent to the
C API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255302
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 21:38:56 +0000 (21:38 +0000)]
Fix non-ascii quotes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255301
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 10 Dec 2015 21:33:53 +0000 (21:33 +0000)]
Add C API guidelines to the developer policy to match discussions
on the llvm mailing lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255300
91177308-0d34-0410-b5e6-
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Kyle Butt [Thu, 10 Dec 2015 21:28:40 +0000 (21:28 +0000)]
PPC: Teach FMA mutate to respect register classes.
This was causing bad code gen and assembly that won't assemble, as
mixed altivec and vsx code would end up with a vsx high register
assigned to an altivec instruction, which won't work. Constraining the
classes allows the optimization to proceed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255299
91177308-0d34-0410-b5e6-
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Chris Bieneman [Thu, 10 Dec 2015 21:19:07 +0000 (21:19 +0000)]
[CMake] Add LLVM_BUILD_INSTRUMENTED option to enable building with -fprofile-instr-generate
This is the first step in supporting PGO data generation via CMake. I've marked the option as advanced and experimental until it is fleshed out further.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255298
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Mike Aizatsky [Thu, 10 Dec 2015 20:41:53 +0000 (20:41 +0000)]
[LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding.
Differential Revision: http://reviews.llvm.org/D15339
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255296
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JF Bastien [Thu, 10 Dec 2015 20:24:34 +0000 (20:24 +0000)]
EarlyCSE: add tests
Summary: As a follow-up to rL255054 I wasn't able to convince myself that the code did what I thought, so I wrote more tests.
Reviewers: reames
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15371
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255295
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Xinliang David Li [Thu, 10 Dec 2015 20:13:41 +0000 (20:13 +0000)]
Add a forward declaration (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255292
91177308-0d34-0410-b5e6-
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Cong Hou [Thu, 10 Dec 2015 19:57:22 +0000 (19:57 +0000)]
Delete a duplicate branch in IfConversion.cpp. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255291
91177308-0d34-0410-b5e6-
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Simon Pilgrim [Thu, 10 Dec 2015 19:47:06 +0000 (19:47 +0000)]
[DAGCombiner] Fix PR25763 - vector comparison constant folding + sign-extension
PR25763 demonstrated an issue with D14683 - vector comparison constant folding only works for i1 results, so we need to split off the sign-extension of the result to the required type. Luckily this can be done with the existing type legalization code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255289
91177308-0d34-0410-b5e6-
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Chad Rosier [Thu, 10 Dec 2015 19:23:02 +0000 (19:23 +0000)]
[DSE] Disable non-local DSE to see if the bots go green.
I see a few bots timing out, so I'm speculatively disabling r255247.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255286
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Rafael Espindola [Thu, 10 Dec 2015 18:44:26 +0000 (18:44 +0000)]
Fix another case where the linkage was not set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255272
91177308-0d34-0410-b5e6-
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Rong Xu [Thu, 10 Dec 2015 18:24:44 +0000 (18:24 +0000)]
[PGO] Use %t as the temporary profdata filename in the test cases.
Using %t rather %T/<specific_name> as the temporary profdata filename.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255271
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Duncan P. N. Exon Smith [Thu, 10 Dec 2015 17:56:06 +0000 (17:56 +0000)]
Verifier: Avoid quadratic checking of aggregates for bad bitcasts
Avoid O(N^2) behaviour when checking for bad bitcasts in `ConstantExpr`s
buried inside of aggregate initializers to `GlobalVariable`s. I've:
- centralized the "visited" set for recursing through `ConstantExpr`s so
that expressions are only visited once per Verifier run,
- removed the duplicate logic for the stack visit, and
- avoided recursing into other `GlobalValue`s.
This recovers roughly a 100x time difference in clang compiles of a
particular input file (filled with large cross-referencing tables) that
depends on whether `-disable-llvm-verifier` is on. This slowdown was
caused by r187506, which introduced these checks.
Now, avoiding `-disable-llvm-verifier` only causes a 2x slowdown for
this case.
(Interestingly, dumping the textual IR for this file starts at least
50GB of global variable initializers (I don't know the total, since I
killed the dump)...)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255269
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Chad Rosier [Thu, 10 Dec 2015 17:27:18 +0000 (17:27 +0000)]
[DeadStoreElimination] Use range-based loops. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255265
91177308-0d34-0410-b5e6-
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Nathan Slingerland [Thu, 10 Dec 2015 17:21:42 +0000 (17:21 +0000)]
[ProfileData] Add unit test infrastructure for sample profile reader/writer
Summary:
Adds support for in-memory round-trip of sample profile data along with basic
round trip unit tests. This will also make it easier to include unit tests for
future changes to sample profiling.
Reviewers: davidxl, dnovillo, silvas
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15211
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255264
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Pirama Arumuga Nainar [Thu, 10 Dec 2015 17:16:49 +0000 (17:16 +0000)]
Fix fptosi, fptoui from f16 vectors to i8, i16 vectors
Summary:
Convert f16 vectors to corresponding f32 vectors before doing the
conversion to int.
Add tests for v4f16, v8f16.
Reviewers: ab, jmolloy
Subscribers: llvm-commits, srhines
Differential Revision: http://reviews.llvm.org/D14936
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255263
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Sanjay Patel [Thu, 10 Dec 2015 17:09:28 +0000 (17:09 +0000)]
[InstCombine] fold bitcasts around an extractelement (3rd try)
This is a redo of r255137 (reverted at r255227) which was a redo of
r255124 (reverted at r255126) with a fixed check for a scalar source
type and an added test for the failure that caused the revert.
Original commit message:
Example:
bitcast (extractelement (bitcast <2 x float> %X to <2 x i32>), 1) to float
--->
extractelement <2 x float> %X, i32 1
This is part of fixing PR25543:
https://llvm.org/bugs/show_bug.cgi?id=25543
The next step will be to generalize this fold:
trunc ( lshr ( bitcast X) ) -> extractelement (X)
Ie, I'm hoping to replace the existing transform of:
bitcast ( trunc ( lshr ( bitcast X)))
added by:
http://reviews.llvm.org/rL112232
with 2 less specific transforms to catch the case in the bug report.
Differential Revision: http://reviews.llvm.org/D14879
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255261
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Teresa Johnson [Thu, 10 Dec 2015 16:39:07 +0000 (16:39 +0000)]
[ThinLTO] Debug message cleanup (NFC)
Added some missing spaces between the module identifier and the start of
the debug message. Also added a ":" after the module identifier to make
this look a little nicer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255259
91177308-0d34-0410-b5e6-
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Rafael Espindola [Thu, 10 Dec 2015 16:35:06 +0000 (16:35 +0000)]
Avoid undefined behavior when vector is empty.
Found by ubsan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255258
91177308-0d34-0410-b5e6-
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Sanjay Patel [Thu, 10 Dec 2015 16:34:21 +0000 (16:34 +0000)]
remove duplicated comments and don't repeat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255257
91177308-0d34-0410-b5e6-
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Teresa Johnson [Thu, 10 Dec 2015 16:11:23 +0000 (16:11 +0000)]
[ThinLTO] Release files in gold plugin during combined index (take 2)
Ensure we release the files even when they don't hold a function index
summary section, by restructuring the control flow a little bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255256
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Dan Gohman [Thu, 10 Dec 2015 14:52:34 +0000 (14:52 +0000)]
[WebAssembly] Tighten up several CHECK tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255255
91177308-0d34-0410-b5e6-
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Rafael Espindola [Thu, 10 Dec 2015 14:19:35 +0000 (14:19 +0000)]
Slit lib/Linker in two.
A linker normally has two stages: symbol resolution and "moving stuff".
In lib/Linker there is the complication of lazy linking some globals,
but it was still far more mixed than it needed to.
This splits the linker into a lower level IRMover and the linker proper.
The IRMover just takes a list of globals to move and a callback that
lets the user control what is lazy linked.
The main motivation is that now tools/gold (and soon lld) can use their
own symbol resolution to instruct IRMover what to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255254
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 14:17:36 +0000 (14:17 +0000)]
[WebAssembly] Make WebAssemblyStoreResults only return true when it has a change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255253
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 14:16:34 +0000 (14:16 +0000)]
[WebAssembly] Fix WebAssemblyPeephole to set Changed to true when making changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255252
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 14:12:04 +0000 (14:12 +0000)]
[WebAssembly] Declare that WebAssemblyPeephole does not modify the CFG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255251
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 14:10:04 +0000 (14:10 +0000)]
[WebAssembly] Remove an unneeded getAnalysisUsage override.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255250
91177308-0d34-0410-b5e6-
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Chad Rosier [Thu, 10 Dec 2015 13:51:43 +0000 (13:51 +0000)]
[DeadStoreElimination] Add support for non-local DSE.
We extend the search for redundant stores to predecessor blocks that
unconditionally lead to the block BB with the current store instruction. That
also includes single-block loops that unconditionally lead to BB, and
if-then-else blocks where then- and else-blocks unconditionally lead to BB.
http://reviews.llvm.org/D13363
Patch by Ivan Baev <ibaev@codeaurora.org>!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255247
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Nemanja Ivanovic [Thu, 10 Dec 2015 13:35:28 +0000 (13:35 +0000)]
Bitcasts between FP and INT values using direct moves
This patch corresponds to review:
http://reviews.llvm.org/D15286
LLVM IR frequently contains bitcast operations between floating point and
integer values of the same width. Doing this through memory operations is
quite expensive on PPC. This patch allows the use of direct register moves
between FPRs and GPRs for lowering bitcasts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255246
91177308-0d34-0410-b5e6-
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Amjad Aboud [Thu, 10 Dec 2015 12:56:35 +0000 (12:56 +0000)]
Macro debug info support in LLVM IR
Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros.
Differential Revision: http://reviews.llvm.org/D14687
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255245
91177308-0d34-0410-b5e6-
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Silviu Baranga [Thu, 10 Dec 2015 11:07:18 +0000 (11:07 +0000)]
[LLE] Use the PredicatedScalarEvolution interface to query SCEVs for dependences
Summary:
LAA uses the PredicatedScalarEvolution interface, so it can produce
forward/backward dependences having SCEVs that are AddRecExprs only after being
transformed by PredicatedScalarEvolution.
Use PredicatedScalarEvolution to get the expected expressions.
Reviewers: anemet
Subscribers: llvm-commits, sanjoy
Differential Revision: http://reviews.llvm.org/D15382
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255241
91177308-0d34-0410-b5e6-
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Jonas Paulsson [Thu, 10 Dec 2015 09:10:07 +0000 (09:10 +0000)]
[PostRA scheduling] Allow a target to do scheduling when it wants post RA.
SystemZ needs to do its scheduling after branch relaxation, which can
only happen after block placement, and therefore the standard
PostRAScheduler point in the pass sequence is too early.
TargetMachine::targetSchedulesPostRAScheduling() is a new method that
signals on returning true that target will insert the final scheduling
pass on its own.
Reviewed by Hal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255234
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Akira Hatanaka [Thu, 10 Dec 2015 08:00:52 +0000 (08:00 +0000)]
Revert r255137.
This commit broke apple's internal bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255227
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Sanjoy Das [Thu, 10 Dec 2015 06:39:02 +0000 (06:39 +0000)]
Add arg_begin() and arg_end() to CallInst and InvokeInst; NFCI
- This simplifies the CallSite class, arg_begin / arg_end are now
simple wrapper getters.
- In several places, we were creating CallSite instances solely to call
arg_begin and arg_end. With this change, that's no longer required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255226
91177308-0d34-0410-b5e6-
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Craig Topper [Thu, 10 Dec 2015 06:09:41 +0000 (06:09 +0000)]
[X86] Fix a couple cases were bitwise and logical operations were being mixed. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255224
91177308-0d34-0410-b5e6-
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Alexey Bataev [Thu, 10 Dec 2015 05:45:58 +0000 (05:45 +0000)]
[OPENMP] Make -fopenmp to turn on OpenMP support by default.
Patch turns on OpenMP support in clang by default after fixing OpenMP buildbots.
Differential Revision: http://reviews.llvm.org/D13802
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255222
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 04:55:31 +0000 (04:55 +0000)]
[WebAssembly] Implement mixed-type ISD::FCOPYSIGN.
ISD::FCOPYSIGN permits its operands to have differing types, and DAGCombiner
uses this. Add some def : Pat rules to expand this out into an explicit
conversion and a normal copysign operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255220
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 04:52:33 +0000 (04:52 +0000)]
[WebAssembly] Implement fma.
It is lowered to a libcall for now, but this is expected to change in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255219
91177308-0d34-0410-b5e6-
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Tom Stellard [Thu, 10 Dec 2015 03:10:46 +0000 (03:10 +0000)]
AMDGPU/SI: Fix warning introduced by r255204
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255205
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Tom Stellard [Thu, 10 Dec 2015 02:13:01 +0000 (02:13 +0000)]
AMDGPU/SI: Emit constant arrays in the .text section
Summary:
This allows us to remove the END_OF_TEXT_LABEL hack we had been using
and simplifies the fixups used to compute the address of constant
arrays.
Reviewers: arsenm
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15257
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255204
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Tom Stellard [Thu, 10 Dec 2015 02:12:53 +0000 (02:12 +0000)]
AMDGPU/SI: Add support for sgpr and vgpr inline assembly constraints
Summary: The 's' constraint represents sgprs and the 'v' constraint represents vgprs.
Reviewers: arsenm, echristo
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D15342
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255203
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Dan Gohman [Thu, 10 Dec 2015 02:07:53 +0000 (02:07 +0000)]
[WebAssembly] Fix legalization of f32->f64 EXTLOAD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255202
91177308-0d34-0410-b5e6-
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Derek Schuff [Thu, 10 Dec 2015 01:09:40 +0000 (01:09 +0000)]
[WebAssembly] Update known test failures
We can now select sign_extend_inreg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255197
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Matthias Braun [Thu, 10 Dec 2015 01:04:15 +0000 (01:04 +0000)]
RegisterPressure: Factor out liveness dead-def detection logic; NFCI
Detecting additional dead-defs without a dead flag that are only visible
through liveness information should be part of the register operand
collection not intertwined with the register pressure update logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255192
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Dan Gohman [Thu, 10 Dec 2015 01:00:19 +0000 (01:00 +0000)]
[WebAssembly] Also legalize sign_extend_inreg of i32->i64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255191
91177308-0d34-0410-b5e6-
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Derek Schuff [Thu, 10 Dec 2015 00:56:18 +0000 (00:56 +0000)]
[WebAssembly] Update test failure expectations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255190
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 00:37:51 +0000 (00:37 +0000)]
PeepholeOptimizer: Ignore dead implicit defs
Target-specific instructions may have uninteresting physreg clobbers,
for target-specific reasons. The peephole pass doesn't need to concern
itself with such defs, as long as they're implicit and marked as dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255182
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 00:26:26 +0000 (00:26 +0000)]
[WebAssembly] Fix legalization of shift operators with illegal types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255181
91177308-0d34-0410-b5e6-
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Dan Gohman [Thu, 10 Dec 2015 00:22:40 +0000 (00:22 +0000)]
[WebAssembly] Fix copy+pastos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255180
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Dan Gohman [Thu, 10 Dec 2015 00:17:35 +0000 (00:17 +0000)]
[WebAssembly] Implement anyext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255179
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Quentin Colombet [Wed, 9 Dec 2015 23:08:18 +0000 (23:08 +0000)]
[X86] Enable shrink-wrapping by default, but keep it disabled for stack frames
without a frame pointer when unwind may happen.
This is a workaround for a bug in the way we emit the CFI directives for
frameless unwind information. See PR25614.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255175
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Sanjay Patel [Wed, 9 Dec 2015 22:45:45 +0000 (22:45 +0000)]
use range-based for loops; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255171
91177308-0d34-0410-b5e6-
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Rafael Espindola [Wed, 9 Dec 2015 22:44:00 +0000 (22:44 +0000)]
Synchronize the logic for deciding to link a gv.
We were deciding to not link an available_externally gv over a
declaration, but then copying over the body anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255169
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Rong Xu [Wed, 9 Dec 2015 21:27:59 +0000 (21:27 +0000)]
[PGO] Rename the profdata filename to avoid the conflict b/w tests.
Two tests diag_mismatch.ll and diag_no_funcprofdata.ll generates the same
profdata filename which can conflict in current test runs. This patch
renames them to have different names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255158
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Justin Bogner [Wed, 9 Dec 2015 21:21:07 +0000 (21:21 +0000)]
IR: Make ConstantDataArray::getFP actually return a ConstantDataArray
The ConstantDataArray::getFP(LLVMContext &, ArrayRef<uint16_t>)
overload has had a typo in it since it was written, where it will
create a Vector instead of an Array. This obviously doesn't work at
all, but it turns out that until r254991 there weren't actually any
callers of this overload. Fix the typo and add some test coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255157
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Teresa Johnson [Wed, 9 Dec 2015 21:11:42 +0000 (21:11 +0000)]
[ThinLTO] Release files read when creating combined index in gold plugin
This wasn't causing an issue since at HEAD we exit the linker completely
after creating the combined index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255156
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Reid Kleckner [Wed, 9 Dec 2015 21:08:18 +0000 (21:08 +0000)]
[Float2Int] Don't operate on vector instructions
This fixes a crash bug. It's also not clear if we'd want to do this
transform for vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255155
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David Blaikie [Wed, 9 Dec 2015 21:02:33 +0000 (21:02 +0000)]
[llvm-dwp] Sink debug_types.dwo emission into the code parsing the type signatures (NFC)
This is a preliminary change towards deduplicating type units based on
their signatures. Next change will skip emission of types when their
signature has already been seen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255154
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Rafael Espindola [Wed, 9 Dec 2015 20:41:10 +0000 (20:41 +0000)]
Don't assign a temporary string to a StringRef.
Should fix the windows debug and asan bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255149
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Sanjoy Das [Wed, 9 Dec 2015 20:33:52 +0000 (20:33 +0000)]
Use WeakVH to keep track of calls with operand bundles in CloneCodeInfo
`CloneAndPruneIntoFromInst` can DCE instructions after cloning them into
the new function, and so an AssertingVH is too strong. This change
switches CloneCodeInfo to use a std::vector<WeakVH>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255148
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Sanjoy Das [Wed, 9 Dec 2015 20:33:45 +0000 (20:33 +0000)]
Delete trailing whitespace; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255147
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Teresa Johnson [Wed, 9 Dec 2015 19:49:40 +0000 (19:49 +0000)]
Delay context construction to when/if it is needed in gold plugin (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255146
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Teresa Johnson [Wed, 9 Dec 2015 19:45:55 +0000 (19:45 +0000)]
clang-format order of gold-plugin includes (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255144
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Teresa Johnson [Wed, 9 Dec 2015 19:39:47 +0000 (19:39 +0000)]
[ThinLTO] FunctionImport pass can take a const index pointer (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255140
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Sanjay Patel [Wed, 9 Dec 2015 18:57:16 +0000 (18:57 +0000)]
[InstCombine] fold bitcasts around an extractelement (2nd try)
This is a redo of r255124 (reverted at r255126) with an added check for a
scalar destination type and an added test for the failure seen in Clang's
test/CodeGen/vector.c. The extra test shows a different missing optimization.
Original commit message:
Example:
bitcast (extractelement (bitcast <2 x float> %X to <2 x i32>), 1) to float
--->
extractelement <2 x float> %X, i32 1
This is part of fixing PR25543:
https://llvm.org/bugs/show_bug.cgi?id=25543
The next step will be to generalize this fold:
trunc ( lshr ( bitcast X) ) -> extractelement (X)
Ie, I'm hoping to replace the existing transform of:
bitcast ( trunc ( lshr ( bitcast X)))
added by:
http://reviews.llvm.org/rL112232
with 2 less specific transforms to catch the case in the bug report.
Differential Revision: http://reviews.llvm.org/D14879
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255137
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Michael Zolotukhin [Wed, 9 Dec 2015 18:20:28 +0000 (18:20 +0000)]
Revert "Revert r253253 and r253126: "Don't recompute LCSSA after loop-unrolling when possible.""
The bug in IndVarSimplify was fixed in r254976, r254977, so I'm
reapplying the original patch for avoiding redundant LCSSA recomputation.
This reverts commit
ffe3b434e505e403146aff00be0c177bb6d13466.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255133
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Rong Xu [Wed, 9 Dec 2015 18:08:16 +0000 (18:08 +0000)]
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021)
This new patch fixes a few bugs that exposed in last submit. It also improves
the test cases.
--Original Commit Message--
This patch implements a minimum spanning tree (MST) based instrumentation for
PGO. The use of MST guarantees minimum number of CFG edges getting
instrumented. An addition optimization is to instrument the less executed
edges to further reduce the instrumentation overhead. The patch contains both the
instrumentation and the use of the profile to set the branch weights.
Differential Revision: http://reviews.llvm.org/D12781
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255132
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Nathan Slingerland [Wed, 9 Dec 2015 17:11:28 +0000 (17:11 +0000)]
[Support] Change SaturatingAdd()/SaturatingMultiply() to use pointer for returning overflow state
Summary:
Improve SaturatingAdd()/SaturatingMultiply() to use bool * to optionally return overflow result.
This should make it clearer that the value is returned at callsites and reduces the size of the implementation.
Reviewers: davidxl, silvas
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15219
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255128
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Mehdi Amini [Wed, 9 Dec 2015 16:31:39 +0000 (16:31 +0000)]
Revert "[InstCombine] fold bitcasts around an extractelement"
This reverts commit r255124.
Broke http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/4193/steps/test/logs/stdio
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255126
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Dan Gohman [Wed, 9 Dec 2015 16:23:59 +0000 (16:23 +0000)]
[WebAssembly] Reintroduce ARGUMENT moving logic
Reinteroduce the code for moving ARGUMENTS back to the top of the basic block.
While the ARGUMENTS physical register prevents sinking and scheduling from
moving them, it does not appear to be sufficient to prevent SelectionDAG from
moving them down in the initial schedule. This patch introduces a patch that
moves them back to the top immediately after SelectionDAG runs.
This is still hopefully a temporary solution. http://reviews.llvm.org/D14750 is
one alternative, though the review has not been favorable, and proposed
alternatives are longer-term and have other downsides.
This fixes the main outstanding -verify-machineinstrs failures, so it adds
-verify-machineinstrs to several tests.
Differential Revision: http://reviews.llvm.org/D15377
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255125
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Sanjay Patel [Wed, 9 Dec 2015 16:17:20 +0000 (16:17 +0000)]
[InstCombine] fold bitcasts around an extractelement
Example:
bitcast (extractelement (bitcast <2 x float> %X to <2 x i32>), 1) to float
--->
extractelement <2 x float> %X, i32 1
This is part of fixing PR25543:
https://llvm.org/bugs/show_bug.cgi?id=25543
The next step will be to generalize this fold:
trunc ( lshr ( bitcast X) ) -> extractelement (X)
Ie, I'm hoping to replace the existing transform of:
bitcast ( trunc ( lshr ( bitcast X)))
added by:
http://reviews.llvm.org/rL112232
with 2 less specific transforms to catch the case in the bug report.
Differential Revision: http://reviews.llvm.org/D14879
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255124
91177308-0d34-0410-b5e6-
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Mehdi Amini [Wed, 9 Dec 2015 16:17:07 +0000 (16:17 +0000)]
Change hasUniqueInitializer() to call isStrongDefinitionForLinker() instead of !isWeakForLinker()
Summary:
Available_externally global variable with initializer were considered "hasInitializer()",
while obviously it can't match the description:
Whether the global variable has an initializer, and any changes made to the
initializer will turn up in the final executable.
since modifying the initializer of an externally available variable does not make sense.
Reviewers: pcc, rafael
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15351
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255123
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Silviu Baranga [Wed, 9 Dec 2015 16:06:28 +0000 (16:06 +0000)]
Re-commit r255115, with the PredicatedScalarEvolution class moved to
ScalarEvolution.h, in order to avoid cyclic dependencies between the Transform
and Analysis modules:
[LV][LAA] Add a layer over SCEV to apply run-time checked knowledge on SCEV expressions
Summary:
This change creates a layer over ScalarEvolution for LAA and LV, and centralizes the
usage of SCEV predicates. The SCEVPredicatedLayer takes the statically deduced knowledge
by ScalarEvolution and applies the knowledge from the SCEV predicates. The end goal is
that both LAA and LV should use this interface everywhere.
This also solves a problem involving the result of SCEV expression rewritting when
the predicate changes. Suppose we have the expression (sext {a,+,b}) and two predicates
P1: {a,+,b} has nsw
P2: b = 1.
Applying P1 and then P2 gives us {a,+,1}, while applying P2 and the P1 gives us
sext({a,+,1}) (the AddRec expression was changed by P2 so P1 no longer applies).
The SCEVPredicatedLayer maintains the order of transformations by feeding back
the results of previous transformations into new transformations, and therefore
avoiding this issue.
The SCEVPredicatedLayer maintains a cache to remember the results of previous
SCEV rewritting results. This also has the benefit of reducing the overall number
of expression rewrites.
Reviewers: mzolotukhin, anemet
Subscribers: jmolloy, sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D14296
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255122
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Tim Northover [Wed, 9 Dec 2015 15:54:50 +0000 (15:54 +0000)]
ARM: don't use a deleted node as the BaseReg in complex pattern.
We mutated the DAG, which invalidated the node we were trying to use
as a base register. Sometimes we got away with it, but other times the
node really did get deleted before it was finished with.
Should fix PR25733
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255120
91177308-0d34-0410-b5e6-
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JF Bastien [Wed, 9 Dec 2015 15:52:57 +0000 (15:52 +0000)]
WebAssembly: add missing failure to the list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255119
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Silviu Baranga [Wed, 9 Dec 2015 15:25:28 +0000 (15:25 +0000)]
Revert r255115 until we figure out how to fix the bot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255117
91177308-0d34-0410-b5e6-
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Silviu Baranga [Wed, 9 Dec 2015 15:03:52 +0000 (15:03 +0000)]
[LV][LAA] Add a layer over SCEV to apply run-time checked knowledge on SCEV expressions
Summary:
This change creates a layer over ScalarEvolution for LAA and LV, and centralizes the
usage of SCEV predicates. The SCEVPredicatedLayer takes the statically deduced knowledge
by ScalarEvolution and applies the knowledge from the SCEV predicates. The end goal is
that both LAA and LV should use this interface everywhere.
This also solves a problem involving the result of SCEV expression rewritting when
the predicate changes. Suppose we have the expression (sext {a,+,b}) and two predicates
P1: {a,+,b} has nsw
P2: b = 1.
Applying P1 and then P2 gives us {a,+,1}, while applying P2 and the P1 gives us
sext({a,+,1}) (the AddRec expression was changed by P2 so P1 no longer applies).
The SCEVPredicatedLayer maintains the order of transformations by feeding back
the results of previous transformations into new transformations, and therefore
avoiding this issue.
The SCEVPredicatedLayer maintains a cache to remember the results of previous
SCEV rewritting results. This also has the benefit of reducing the overall number
of expression rewrites.
Reviewers: mzolotukhin, anemet
Subscribers: jmolloy, sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D14296
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255115
91177308-0d34-0410-b5e6-
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Robert Lougher [Wed, 9 Dec 2015 14:34:10 +0000 (14:34 +0000)]
Fix cycle in selection DAG introduced by extractelement legalization
During selection DAG legalization, extractelement is replaced with a load
instruction. To do this, a temporary store to the stack is used unless an
existing store is found that can be re-used.
If re-using a store, the chain going out of the store must be replaced by
the one going out of the new load (this ensures that any stores that must
take place after the store happens after the load, else the value might
be overwritten before it is loaded).
The problem is, if the extractelement index is dependent on the store
replacing the chain will introduce a cycle in the selection DAG (the load
uses the index, and by replacing the chain we will make the index dependent
on the load).
To fix this, if the index is dependent on the store, the store is skipped.
This is conservative as we may end up creating an unnecessary extra store
to the stack. However, the situation is not expected to occur very often.
Differential Revision: http://reviews.llvm.org/D15330
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255114
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Oliver Stannard [Wed, 9 Dec 2015 14:32:11 +0000 (14:32 +0000)]
[AArch64] Fix FP16 vector instructions that should only accept low registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255113
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Daniel Sanders [Wed, 9 Dec 2015 13:48:05 +0000 (13:48 +0000)]
[mips][ias] Range check uimm10 operands
Summary:
Reviewers: vkalintiris
Subscribers: dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D15229
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255112
91177308-0d34-0410-b5e6-
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JF Bastien [Wed, 9 Dec 2015 13:29:32 +0000 (13:29 +0000)]
WebAssembly: add known failures
The bots are now running the torture tests properly. Bin all failures from the GCC C torture tests so that we can tackle failures and make the tree go red on regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255111
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Vasileios Kalintiris [Wed, 9 Dec 2015 13:24:22 +0000 (13:24 +0000)]
[mips] Use multiclass patterns for f32/f64 comparisons and i32 selects.
Summary:
Although the multiclass for i32 selects might seem redundant as it has
only one instantiation, we will use it to replace the correspondent
patterns in Mips64r6InstrInfo.td in follow-up commits.
Reviewers: dsanders
Subscribers: llvm-commits, dsanders
Differential Revision: http://reviews.llvm.org/D14612
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255110
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Zlatko Buljan [Wed, 9 Dec 2015 13:07:45 +0000 (13:07 +0000)]
Revert r254897 "[mips][microMIPS] Implement LH, LHE, LHU and LHUE instructions"
Commited patch was intended to implement LH, LHE, LHU and LHUE instructions.
After commit test-suite failed with error message in the form of:
fatal error: error in backend: Cannot select: t124: i32,ch = load<LD2[%d](tbaa=<0x94acc48>), sext from i16> t0, t2, undef:i32
For that reason I decided to revert commit r254897 and make new patch which besides implementation and standard regression tests will also have dedicated tests (CodeGen) for the above error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255109
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