David Majnemer [Fri, 4 Sep 2015 07:22:36 +0000 (07:22 +0000)]
[MC] Replace comparison with isUInt<32>.
Casting to unsigned long can cause the time to get truncated to 32-bits,
making it appear to be a valid timestamp. Just use isUInt<32> instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246840
91177308-0d34-0410-b5e6-
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NAKAMURA Takumi [Fri, 4 Sep 2015 05:19:37 +0000 (05:19 +0000)]
WinCOFFObjectWriter.cpp: Appease a warning in checking std::time_t. [-Wsign-compare]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246839
91177308-0d34-0410-b5e6-
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Richard Smith [Fri, 4 Sep 2015 04:08:36 +0000 (04:08 +0000)]
Fix APInt value initialization to give a zero value as any sane integer type
should, rather than giving a broken value that doesn't even zero/sign-extend
properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246836
91177308-0d34-0410-b5e6-
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Steven Wu [Fri, 4 Sep 2015 01:39:24 +0000 (01:39 +0000)]
Fix the testcase in r246790
Using generic neon syntax to avoid test failure on apple platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246833
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Kostya Serebryany [Fri, 4 Sep 2015 00:40:29 +0000 (00:40 +0000)]
[libFuzzer] when a single mutation fails try a few more times with other mutations before returning un-mutated data
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246828
91177308-0d34-0410-b5e6-
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Kostya Serebryany [Fri, 4 Sep 2015 00:12:11 +0000 (00:12 +0000)]
[libFuzzer] actually make the dictionaries work (+docs)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246825
91177308-0d34-0410-b5e6-
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Hal Finkel [Fri, 4 Sep 2015 00:10:41 +0000 (00:10 +0000)]
[PowerPC] Enable interleaved-access vectorization
This adds a basic cost model for interleaved-access vectorization (and a better
default for shuffles), and enables interleaved-access vectorization by default.
The relevant difference from the default cost model for interleaved-access
vectorization, is that on PPC, the shuffles that end up being used are *much*
cheaper than modeling the process with insert/extract pairs (which are
quite expensive, especially on older cores).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246824
91177308-0d34-0410-b5e6-
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Hal Finkel [Thu, 3 Sep 2015 23:23:00 +0000 (23:23 +0000)]
[PowerPC] Always use aggressive interleaving on the A2
On the A2, with an eye toward QPX unaligned-load merging, we should always use
aggressive interleaving. It is generally superior to only using concatenation
unrolling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246819
91177308-0d34-0410-b5e6-
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Hal Finkel [Thu, 3 Sep 2015 22:37:44 +0000 (22:37 +0000)]
[PowerPC] Try harder to find a base+offset when looking for consecutive accesses
When forming permutation-based unaligned vector loads, we need to know whether
it is valid to read ahead of the requested address by a full vector length.
Doing so is more efficient (and allows for more CSE with later loads), but
could trigger a page fault if invalid. To determine validity, we look for other
loads in the same block that access the relevant address range.
The relevant point here is that we need to do this as part of the process of
forming permutation-based vector loads, and this happens quite early in the
SDAG pipeline - specifically before many of the address calculations are fully
canonicalized. As a result, we need to try harder to recognize base+offset
address computations, because they still might appear as chain of adds
(base+offset+offset, for example). To account for this, we'll look through
chains of adds, accumulating the constant offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246813
91177308-0d34-0410-b5e6-
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Sanjoy Das [Thu, 3 Sep 2015 22:27:42 +0000 (22:27 +0000)]
[IR] Have AttrBuilder::clear clear `TargetDepAttrs`.
Test case attached -- currently the parser smears the "foo bar" to all
of the formal arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246812
91177308-0d34-0410-b5e6-
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Philip Reames [Thu, 3 Sep 2015 21:57:40 +0000 (21:57 +0000)]
[RewriteStatepointsForGC] Extract common code, comment, and fix a build warning [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246810
91177308-0d34-0410-b5e6-
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Philip Reames [Thu, 3 Sep 2015 21:34:30 +0000 (21:34 +0000)]
[RewriteStatepointsForGC] Strengthen invariants around BDVs
As a first step towards a new implementation of the base pointer inference algorithm, introduce an abstraction for BDVs, strengthen the assertions around them, and rewrite the BDV relation code in terms of the abstraction which includes an explicit notion of whether the BDV is also a base. The later is motivated by the fact we had a bug where insertelement was always assumed to be a base pointer even though the BDV code knew it wasn't. The strengthened assertions in this patch would have caught that bug.
The next step will be to separate the DefiningValueMap into a BDV use list cache (entirely within findBasePointers) and a base pointer cache. Having the former will allow me to use a deterministic visit order when visiting BDVs in the inference algorithm and remove a bunch of ordering related hacks. Before actually doing the last step, I'm likely going to extend the lattice with a 'BaseN' (seen only base inputs) state so that I can kill the post process optimization step.
Phabricator Revision: http://reviews.llvm.org/D12608
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246809
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Kostya Serebryany [Thu, 3 Sep 2015 21:24:19 +0000 (21:24 +0000)]
[libFuzzer] refactor the mutation functions so that they are now methods of a class. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246808
91177308-0d34-0410-b5e6-
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Hal Finkel [Thu, 3 Sep 2015 21:23:18 +0000 (21:23 +0000)]
[PowerPC] Include the permutation cost for unaligned vector loads
Pre-P8, when we generate code for unaligned vector loads (for Altivec and QPX
types), even when accounting for the combining that takes place for multiple
consecutive such loads, there is at least one load instructions and one
permutation for each load. Make sure the cost reported reflects the cost of the
permutes as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246807
91177308-0d34-0410-b5e6-
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Hal Finkel [Thu, 3 Sep 2015 21:12:15 +0000 (21:12 +0000)]
[PowerPC] Compute the MMO offset for an unaligned load with signed arithmetic
If you compute the MMO offset using unsigned arithmetic, you end up with a
large positive offset instead of a small negative one. In theory, this could
cause bad instruction-scheduling decisions later.
I noticed this by inspection from the debug output, and using that for the
regression test is the best I can do right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246805
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Philip Reames [Thu, 3 Sep 2015 20:24:29 +0000 (20:24 +0000)]
[RewriteStatepointsForGC] Workaround a lack of determinism in visit order
The visit order being used in the base pointer inference algorithm is currently non-deterministic. When working on http://reviews.llvm.org/D12583, I discovered that we were relying on a peephole optimization to get deterministic ordering in one of the test cases.
This change is intented to let me test and land http://reviews.llvm.org/D12583. The current code will not be long lived. I'm starting to investigate a rewrite of the algorithm which will combine the post-process step into the initial algorithm and make the visit order determistic. Before doing that, I wanted to make sure the existing code was complete and the test were stable. Hopefully, patches should be up for review for the new algorithm this week or early next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246801
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Kostya Serebryany [Thu, 3 Sep 2015 20:23:46 +0000 (20:23 +0000)]
[libFuzzer] adding a parser for AFL-style dictionaries + tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246800
91177308-0d34-0410-b5e6-
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Reid Kleckner [Thu, 3 Sep 2015 20:18:29 +0000 (20:18 +0000)]
[sancov] Disable sanitizer coverage on functions using SEH
Splitting basic blocks really messes up WinEHPrepare. We can remove this
change when SEH uses the new EH IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246799
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Jonathan Roelofs [Thu, 3 Sep 2015 20:10:40 +0000 (20:10 +0000)]
llvm.vim: 'musttail' is a keyword too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246798
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Dan Liew [Thu, 3 Sep 2015 18:43:56 +0000 (18:43 +0000)]
Try to clarify the semantics of fptrunc
* ``the value cannot fit within the destination type`` is ambiguous.
It could mean overflow, underflow (not in the IEEE-754 sense) or a
result that cannot be exactly represented and requires rounding or it
could mean some combination of these. The semantics now state it means
overflow **only**.
* Using "truncation" in the semantics is very misleading given that it
doesn't necessarily truncate (i.e. round to zero). For example on
x86_64 with SSE2 this is currently mapped to cvtsd2ss instruction
who's rounding behaviour is dependent on the MXCSR register which
is usually set to round to nearest even by default. The semantics
now state that the rounding mode is undefined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246792
91177308-0d34-0410-b5e6-
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Chad Rosier [Thu, 3 Sep 2015 18:13:57 +0000 (18:13 +0000)]
[AArch64] Improve ISel using across lane addition reduction.
In vectorized add reduction code, the final "reduce" step is sub-optimal.
This change wll combine :
ext v1.16b, v0.16b, v0.16b, #8
add v0.4s, v1.4s, v0.4s
dup v1.4s, v0.s[1]
add v0.4s, v1.4s, v0.4s
into
addv s0, v0.4s
PR21371
http://reviews.llvm.org/D12325
Patch by Jun Bum Lim <junbuml@codeaurora.org>!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246790
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Davide Italiano [Thu, 3 Sep 2015 18:10:28 +0000 (18:10 +0000)]
[llvm-readobj] Dump MachO indirect symbols.
Example output:
File: <stdin>
Format: Mach-O 32-bit i386
Arch: i386
AddressSize: 32bit
Indirect Symbols {
Number: 3
Symbols [
Entry {
Entry Index: 0
Symbol Index: 0x4
}
Entry {
Entry Index: 1
Symbol Index: 0x0
}
Entry {
Entry Index: 2
Symbol Index: 0x1
}
]
}
Differential Revision: http://reviews.llvm.org/D12570
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246789
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Karl Schimpf [Thu, 3 Sep 2015 18:06:44 +0000 (18:06 +0000)]
Allow global address space forward decls using IDs in .ll files.
Summary:
This fixes bugzilla bug 24656. Fixes the case where there is a forward
reference to a global variable using an ID (i.e. @0). It does this by
passing the address space of the initializer pointer for which the
forward referenced global is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246788
91177308-0d34-0410-b5e6-
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Quentin Colombet [Thu, 3 Sep 2015 16:49:18 +0000 (16:49 +0000)]
[ARM] Add a test case for revision 243956.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246785
91177308-0d34-0410-b5e6-
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Reid Kleckner [Thu, 3 Sep 2015 16:41:50 +0000 (16:41 +0000)]
Sink COFF.h MC include into .cpp files
This prevents MC clients from getting COFF.h, which conflicts with
winnt.h macros. Also a minor IWYU cleanup. Now the only public headers
including COFF.h are in Object, and they actually need it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246784
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Chad Rosier [Thu, 3 Sep 2015 16:41:28 +0000 (16:41 +0000)]
Revert "[AArch64] Improve load/store optimizer to handle LDUR + LDR."
This reverts commit r246769.
This appears to have broken Multisource/Benchmarks/tramp3d-v4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246782
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Sanjay Patel [Thu, 3 Sep 2015 16:36:16 +0000 (16:36 +0000)]
[x86] enable machine combiner reassociations for scalar 'xor' insts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246781
91177308-0d34-0410-b5e6-
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Karl Schimpf [Thu, 3 Sep 2015 16:18:32 +0000 (16:18 +0000)]
Fix assertion failure in LLParser::ConvertValIDToValue
Summary:
Fixes bug 24645. Problem appears to be that the type may be undefined
when ConvertValIDToValue is called.
Reviewers: kcc
Subscribers: llvm-commits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246779
91177308-0d34-0410-b5e6-
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Karl Schimpf [Thu, 3 Sep 2015 15:41:38 +0000 (15:41 +0000)]
Remove binary characters from test file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246775
91177308-0d34-0410-b5e6-
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Karl Schimpf [Thu, 3 Sep 2015 15:41:37 +0000 (15:41 +0000)]
Fix SEGV in InlineAsm::ConstraintInfo::Parse.
Summary:
Fixes bug 24646. Previous code was not checking if an index into a vector
was valid, resulting in a SEGV. Fixed by assuming the construct can't
be parsed when given this input.
Reformat and add test.
Differential Revision: http://reviews.llvm.org/D12539
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246774
91177308-0d34-0410-b5e6-
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Karl Schimpf [Thu, 3 Sep 2015 15:41:34 +0000 (15:41 +0000)]
Fix SEGV in InlineAsm::ConstraintInfo::Parse.
Fixes bug 24646. Previous code was not checking if an index into a vector
was valid, resulting in a SEGV. Fixed by assuming the construct can't
be parsed when given this input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246773
91177308-0d34-0410-b5e6-
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Sanjay Patel [Thu, 3 Sep 2015 15:03:19 +0000 (15:03 +0000)]
check for fastness before merging in DAGCombiner::MergeConsecutiveStores()
Use and check the 'IsFast' optional parameter to TLI.allowsMemoryAccess() any time
we have a merged access candidate. Without this patch, we were generating unaligned
16-byte (SSE) memops for x86 targets where those accesses are slow.
This change was mentioned in:
http://reviews.llvm.org/D10662 and
http://reviews.llvm.org/D10905
and will help solve PR21711.
Differential Revision: http://reviews.llvm.org/D12573
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246771
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Chad Rosier [Thu, 3 Sep 2015 14:41:37 +0000 (14:41 +0000)]
[AArch64] Improve load/store optimizer to handle LDUR + LDR.
This patch allows the mixing of scaled and unscaled load/stores to form
load/store pairs.
PR24465
http://reviews.llvm.org/D12116
Many thanks to Ahmed and Michael for fixes and code review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246769
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Chad Rosier [Thu, 3 Sep 2015 14:19:43 +0000 (14:19 +0000)]
[AArch64] Reuse MayLoad. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246767
91177308-0d34-0410-b5e6-
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Daniel Sanders [Thu, 3 Sep 2015 12:31:22 +0000 (12:31 +0000)]
[mips] Added support for the div, divu, ddiv and ddivu macros which use traps and breaks in the integrated assembler.
Summary:
Patch by Scott Egerton
Reviewers: vkalintiris, dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11675
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246763
91177308-0d34-0410-b5e6-
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Silviu Baranga [Thu, 3 Sep 2015 11:36:39 +0000 (11:36 +0000)]
Fix IRBuilder CreateBitOrPointerCast for vector types
Summary:
This function was not taking into account that the
input type could be a vector, and wasn't properly
working for vector types.
This caused an assert when building spec2k6 perlbmk for armv8.
Reviewers: rengolin, mzolotukhin
Subscribers: silviu.baranga, mzolotukhin, rengolin, eugenis, jmolloy, aemerson, llvm-commits
Differential Revision: http://reviews.llvm.org/D12559
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246759
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Joseph Tremoulet [Thu, 3 Sep 2015 09:33:54 +0000 (09:33 +0000)]
[Docs] Fix Sphinx warning
Title underline was too short.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246754
91177308-0d34-0410-b5e6-
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Joseph Tremoulet [Thu, 3 Sep 2015 09:15:32 +0000 (09:15 +0000)]
[WinEH] Add llvm.eh.exceptionpointer intrinsic
Summary:
This intrinsic can be used to extract a pointer to the exception caught by
a given catchpad. Its argument has token type and must be a `catchpad`.
Also clarify ExtendingLLVM documentation regarding overloaded intrinsics.
Reviewers: majnemer, andrew.w.kaylor, sanjoy, rnk
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12533
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246752
91177308-0d34-0410-b5e6-
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Joseph Tremoulet [Thu, 3 Sep 2015 09:09:43 +0000 (09:09 +0000)]
[WinEH] Add cleanupendpad instruction
Summary:
Add a `cleanupendpad` instruction, used to mark exceptional exits out of
cleanups (for languages/targets that can abort a cleanup with another
exception). The `cleanupendpad` instruction is similar to the `catchendpad`
instruction in that it is an EH pad which is the target of unwind edges in
the handler and which itself has an unwind edge to the next EH action.
The `cleanupendpad` instruction, similar to `cleanupret` has a `cleanuppad`
argument indicating which cleanup it exits. The unwind successors of a
`cleanuppad`'s `cleanupendpad`s must agree with each other and with its
`cleanupret`s.
Update WinEHPrepare (and docs/tests) to accomodate `cleanupendpad`.
Reviewers: rnk, andrew.w.kaylor, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12433
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246751
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Igor Breger [Thu, 3 Sep 2015 09:05:31 +0000 (09:05 +0000)]
AVX512: Implemented encoding and intrinsics for vplzcntq, vplzcntd, vpconflictq, vpconflictd
Added tests for intrinsics and encoding.
Differential Revision: http://reviews.llvm.org/D11931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246750
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NAKAMURA Takumi [Thu, 3 Sep 2015 00:48:59 +0000 (00:48 +0000)]
Tweak llvm/test/tools/gold/X86/parallel.ll to run with pthread-unaware ld.gold on Linux.
If ld.gold is configured without --enable-thread, ld.gold might not load libpthread.so.
Preloading LLVMgold.so loads also libpthread.so.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246739
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JF Bastien [Wed, 2 Sep 2015 23:55:23 +0000 (23:55 +0000)]
[MergeFuncs] Efficiently defer functions on merge
Summary:
This patch introduces a side table in Merge Functions to
efficiently remove functions from the function set when functions
they refer to are merged. Previously these functions would need to
be compared lg(N) times to find the appropriate FunctionNode in the
tree to defer. With the recent determinism changes, this comparison
is more expensive. In addition, the removal function would not always
actually remove the function from the set (i.e. after remove(F),
there would sometimes still be a node in the tree which contains F).
With these changes, these functions are properly deferred, and so more
functions can be merged. In addition, when there are many merged
functions (and thus more deferred functions), there is a speedup:
chromium: 48678 merged -> 49380 merged; 6.58s -> 5.49s
libxul.so: 41004 merged -> 41030 merged; 8.02s -> 6.94s
mysqld: 1607 merged -> 1607 merged (same); 0.215s -> 0.212s (probably noise)
Author: jrkoenig
Reviewers: jfb, dschuff
Subscribers: llvm-commits, nlewycky
Differential revision: http://reviews.llvm.org/D12537
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246735
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Kostya Serebryany [Wed, 2 Sep 2015 23:27:39 +0000 (23:27 +0000)]
[libFuzzer] deprecate the -tokens flag. This was a bad idea because the corpus with this flag contains encrypted inputs, not the real inputs, which complicates interoperation with other fuzzers. Instead we'll need to implement AFL dictionary support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246734
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Ahmed Bougacha [Wed, 2 Sep 2015 23:25:39 +0000 (23:25 +0000)]
[X86] Require 32-byte alignment for 32-byte VMOVNTs.
We used to accept (and even test, and generate) 16-byte alignment
for 32-byte nontemporal stores, but they require 32-byte alignment,
per SDM. Found by inspection.
Instead of hardcoding 16 in the patfrag, check for natural alignment.
Also fix the autoupgrade and the various tests.
Also, use explicit -mattr instead of -mcpu: I stared at the output
several minutes wondering why I get 2x movntps for the unaligned
case (which is the ideal output, but needs some work: see FIXME),
until I remembered corei7-avx implies +slow-unaligned-mem-32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246733
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Douglas Katzman [Wed, 2 Sep 2015 23:11:25 +0000 (23:11 +0000)]
Add Myriad into enum VendorType
Differential Revision: http://reviews.llvm.org/D12540
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246732
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Ahmed Bougacha [Wed, 2 Sep 2015 22:47:09 +0000 (22:47 +0000)]
[X86] Cleanup nontemporal tests a little. NFC.
Also: add a missing test for movntiq.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246730
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Justin Bogner [Wed, 2 Sep 2015 22:46:15 +0000 (22:46 +0000)]
IR: Remove an unused AssemblyWriter constructor. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246729
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Kostya Serebryany [Wed, 2 Sep 2015 22:44:46 +0000 (22:44 +0000)]
[libFuzzer] remove the section about '-tokens' as I am going to deprecate this option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246728
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Philip Reames [Wed, 2 Sep 2015 22:35:42 +0000 (22:35 +0000)]
[RewriteStatepointsForGC] Delete stale comment [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246722
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Philip Reames [Wed, 2 Sep 2015 22:30:53 +0000 (22:30 +0000)]
[RewriteStatepointsForGC] Pull a function out of anon namespace [NFC]
Thanks to David Blaikie for noticing in previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246721
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Justin Bogner [Wed, 2 Sep 2015 22:28:47 +0000 (22:28 +0000)]
IR: Remove a redundant function. NFC
Function::print isn't interestingly different from Value::print. Just
let the only caller (in PrintCallGraphPass) call the Value version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246720
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Ahmed Bougacha [Wed, 2 Sep 2015 22:27:38 +0000 (22:27 +0000)]
[X86] Cleanup nontemporal fragments. NFCI.
We can chain other fragments to avoid repeating conditions.
This also fixes a potential bug (that realistically can't happen),
where we would match indexed nontemporal stores for i32/i64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246719
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Philip Reames [Wed, 2 Sep 2015 22:25:07 +0000 (22:25 +0000)]
[RewriteStatepointsForGC] Bugfix for change 246133
Fix a bug in change 246133. I didn't handle the case where we had a cycle in the use graph and could add an instruction we were about to erase back on to the worklist. Oddly, I have not been able to write a small test case for this, even with the AssertingVH added. I have confirmed the basic theory for the fix on a large failing example, but all attempts to reduce that to something appropriate for a test case have failed.
Differential Revision: http://reviews.llvm.org/D12575
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246718
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Philip Reames [Wed, 2 Sep 2015 21:57:17 +0000 (21:57 +0000)]
Fix release build warning for unused function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246717
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Philip Reames [Wed, 2 Sep 2015 21:11:44 +0000 (21:11 +0000)]
[RewriteStatepointsForGC] Improve debug output [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246713
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Hal Finkel [Wed, 2 Sep 2015 21:03:28 +0000 (21:03 +0000)]
[PowerPC] Cleanup cost model for unaligned vector loads/stores
I'm adding a regression test to better cover code generation for unaligned
vector loads and stores, but there's no functional change to the code
generation here. There is an improvement to the cost model for unaligned vector
loads and stores, mostly for QPX (for which we were not previously accounting
for the permutation-based loads), and the cost model implementation is cleaner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246712
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Douglas Katzman [Wed, 2 Sep 2015 21:02:10 +0000 (21:02 +0000)]
Move twice-repeated clang path operation into a new function.
And make it more robust in the edge case of exactly "./" as input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246711
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Piotr Padlewski [Wed, 2 Sep 2015 20:33:16 +0000 (20:33 +0000)]
Small docs fix
http://reviews.llvm.org/D12572
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246705
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Reid Kleckner [Wed, 2 Sep 2015 20:32:41 +0000 (20:32 +0000)]
[lit] Add basic flaky test retry functionality
The plan is to use this for the sanitizer test suite on Windows. See
PR24554 for more details on why we need this.
Tested manually by injecting rand() into a sanitizer test and watching
what it does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246704
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Piotr Padlewski [Wed, 2 Sep 2015 20:00:03 +0000 (20:00 +0000)]
assuem(X) handling in GVN bugfix
There was infinite loop because it was trying to change assume(true) into
assume(true)
Also added handling when assume(false) appear
http://reviews.llvm.org/D12516
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246697
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Piotr Padlewski [Wed, 2 Sep 2015 19:59:59 +0000 (19:59 +0000)]
Constant propagation after hitting assume(cmp) bugfix
Last time code run into assertion `BBE.isSingleEdge()` in
lib/IR/Dominators.cpp:200.
http://reviews.llvm.org/D12170
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246696
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Piotr Padlewski [Wed, 2 Sep 2015 19:59:53 +0000 (19:59 +0000)]
Constant propagation after hiting llvm.assume
After hitting @llvm.assume(X) we can:
- propagate equality that X == true
- if X is icmp/fcmp (with eq operation), and one of operand
is constant we can change all variables with constants in the same BasicBlock
http://reviews.llvm.org/D11918
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246695
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Benjamin Kramer [Wed, 2 Sep 2015 19:52:23 +0000 (19:52 +0000)]
[RemoveDuplicatePHINodes] Start over after removing a PHI.
This makes RemoveDuplicatePHINodes more effective and fixes an assertion
failure. Triggering the assertions requires a DenseSet reallocation
so this change only contains a constructive test.
I'll explain the issue with a small example. In the following function
there's a duplicate PHI, %4 and %5 are identical. When this is found
the DenseSet in RemoveDuplicatePHINodes contains %2, %3 and %4.
define void @F() {
br label %1
; <label>:1 ; preds = %1, %0
%2 = phi i32 [ 42, %0 ], [ %4, %1 ]
%3 = phi i32 [ 42, %0 ], [ %5, %1 ]
%4 = phi i32 [ 42, %0 ], [ 23, %1 ]
%5 = phi i32 [ 42, %0 ], [ 23, %1 ]
br label %1
}
after RemoveDuplicatePHINodes runs the function looks like this. %3 has
changed and is now identical to %2, but RemoveDuplicatePHINodes never
saw this.
define void @F() {
br label %1
; <label>:1 ; preds = %1, %0
%2 = phi i32 [ 42, %0 ], [ %4, %1 ]
%3 = phi i32 [ 42, %0 ], [ %4, %1 ]
%4 = phi i32 [ 42, %0 ], [ 23, %1 ]
br label %1
}
If the DenseSet does a reallocation now it will reinsert all
keys and stumble over %3 now having a different hash value than it had
when inserted into the map for the first time. This change clears the
set whenever a PHI is deleted and starts the progress from the
beginning, allowing %3 to be deleted and avoiding inconsistent DenseSet
state. This potentially has a negative performance impact because
it rescans all PHIs, but I don't think that this ever makes a difference
in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246694
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Sanjay Patel [Wed, 2 Sep 2015 19:35:31 +0000 (19:35 +0000)]
fix underline
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246693
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Sanjay Patel [Wed, 2 Sep 2015 19:23:23 +0000 (19:23 +0000)]
use "unpredictable" metadata in fast-isel when splitting compares
This patch uses the metadata defined in D12341 to avoid creating an unpredictable branch.
Differential Revision: http://reviews.llvm.org/D12342
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246692
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Sanjay Patel [Wed, 2 Sep 2015 19:17:25 +0000 (19:17 +0000)]
use "unpredictable" metadata in SelectionDAG when splitting compares
This patch uses the metadata defined in D12341 to avoid creating an unpredictable branch.
Differential Revision: http://reviews.llvm.org/D12343
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246691
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Kostya Serebryany [Wed, 2 Sep 2015 19:08:08 +0000 (19:08 +0000)]
[libFuzzer] honour -only_ascii=1 when reading the initial corpus. Also, remove ugly #ifdef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246689
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Sanjay Patel [Wed, 2 Sep 2015 19:06:43 +0000 (19:06 +0000)]
add unpredictable metadata type for control flow
This patch defines 'unpredictable' metadata. This metadata can be used to signal to the optimizer
or backend that a branch or switch is unpredictable, and therefore, it's probably better to not
split a compound predicate into multiple branches such as in CodeGenPrepare::splitBranchCondition().
This was discussed in:
https://llvm.org/bugs/show_bug.cgi?id=23827
Dependent patches to alter codegen and expose this in clang to follow.
Differential Revision; http://reviews.llvm.org/D12341
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246688
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Ahmed Bougacha [Wed, 2 Sep 2015 18:52:54 +0000 (18:52 +0000)]
[AArch64] More consistently separate asm opc and operands with '\t'.
Somehow missed these in r246686.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246687
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Ahmed Bougacha [Wed, 2 Sep 2015 18:38:36 +0000 (18:38 +0000)]
[AArch64] Consistently separate asm opc and operands with '\t'.
Some of the instructions use ' ', which drives OCD-me nuts.
Let's put an end to this.
NFC-ish: hopefully nobody cares about whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246686
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Justin Bogner [Wed, 2 Sep 2015 18:03:01 +0000 (18:03 +0000)]
test: Only warn about missing substitutions for required tools
Every time lit is invoked, I get warnings like so:
lit.py: lit.cfg:286: note: Did not find llvm-go in /Users/bogner/build/llvm/./bin
lit.py: lit.cfg:286: note: Did not find Kaleidoscope-Ch3 in /Users/bogner/build/llvm/./bin
Since these tools are only built in certain configs, these warnings
are superfluous. Change it so that we only warn about tools that are
built in all configs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246684
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Justin Bogner [Wed, 2 Sep 2015 17:54:41 +0000 (17:54 +0000)]
IR: Invert a condition to make it more legible. NFC
Also updates the style to more modern conventions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246681
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James Molloy [Wed, 2 Sep 2015 17:29:54 +0000 (17:29 +0000)]
[ValueTracking] Minor comment change in test
This test was updated in r246678 - fix a copypasta in a comment noticed post-commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246679
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James Molloy [Wed, 2 Sep 2015 17:25:25 +0000 (17:25 +0000)]
[ValueTracking] Look through casts when both operands are casts.
We only looked through casts when one operand was a constant. We can also look through casts when both operands are non-constant, but both are in fact the same cast type. For example:
%1 = icmp ult i8 %a, %b
%2 = zext i8 %a to i32
%3 = zext i8 %b to i32
%4 = select i1 %1, i32 %2, i32 %3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246678
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Davide Italiano [Wed, 2 Sep 2015 16:53:25 +0000 (16:53 +0000)]
[llvm-reaodbj] Simplify code. No functional change (intended).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246676
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Hal Finkel [Wed, 2 Sep 2015 16:52:37 +0000 (16:52 +0000)]
[PowerPC] Don't always consider P8Altivec-only masks in LowerVECTOR_SHUFFLE
LowerVECTOR_SHUFFLE needs to decide whether to pass a vector shuffle off to the
TableGen-generated matching code, and it does this by testing the same
predicates used by the TableGen files. Unfortunately, when we added new
P8Altivec-only predicates, we started universally testing them in
LowerVECTOR_SHUFFLE, and if then matched when targeting a system prior to a P8,
we'd end up with a selection failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246675
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Frederic Riss [Wed, 2 Sep 2015 16:49:13 +0000 (16:49 +0000)]
Reapply r246012 [dsymutil] Emit real dSYM companion binaries.
With a fix for big endian machines. Thanks to Daniel Sanders for the debugging!
Original commit message:
The binaries containing the linked DWARF generated by dsymutil are not
standard relocatable object files like emitted did previsously. They should be
dSYM companion files, which means they have a different file type in the
header, but also a couple other peculiarities:
- they contain the segments and sections from the original binary in their
load commands, but not the actual contents. This means they get an address
and a size, but their offset is always 0 (but these are not virtual sections)
- they also conatin all the defined symbols from the original binary
This makes MC a really bad fit to emit these kind of binaries. The approach
that was used in this patch is to leverage MC's section layout for the
debug sections, but to use a replacement for MachObjectWriter that lives
in MachOUtils.cpp. Some of the low-level helpers from MachObjectWriter
were reused too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246673
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Davide Italiano [Wed, 2 Sep 2015 16:24:24 +0000 (16:24 +0000)]
[llvm-readobj] MachO: Dump segment command.
Example output:
File: <stdin>
Format: Mach-O arm
Arch: arm
AddressSize: 32bit
Segment {
Cmd: LC_SEGMENT
Name:
Size: 260
vmaddr: 0x0
vmsize: 0x10
fileoff: 408
filesize: 408
maxprot: rwx
initprot: rwx
nsects: 3
flags: 0x0
}
Differential Revision: http://reviews.llvm.org/D12542
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246665
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NAKAMURA Takumi [Wed, 2 Sep 2015 16:21:27 +0000 (16:21 +0000)]
MCAssembler.h: Prune unused \param since r246604. [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246664
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Sanjay Patel [Wed, 2 Sep 2015 15:42:49 +0000 (15:42 +0000)]
[x86] fix allowsMisalignedMemoryAccesses() for 8-byte and smaller accesses
This is a continuation of the fix from:
http://reviews.llvm.org/D10662
and discussion in:
http://reviews.llvm.org/D12154
Here, we distinguish slow unaligned SSE (128-bit) accesses from slow unaligned
scalar (64-bit and under) accesses. Other lowering (eg, getOptimalMemOpType)
assumes that unaligned scalar accesses are always ok, so this changes
allowsMisalignedMemoryAccesses() to match that behavior.
Differential Revision: http://reviews.llvm.org/D12543
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246658
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Rafael Espindola [Wed, 2 Sep 2015 15:07:39 +0000 (15:07 +0000)]
Pass a symbol table to getRelocationSymbol instead of returning one.
This removes a report_fatal_error from library and avoids checking a
section property for every section entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246656
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Asaf Badouh [Wed, 2 Sep 2015 14:21:54 +0000 (14:21 +0000)]
[X86][AVX512VLBW] add support in byte shift and SAD
add byte shift left/right
add SAD - compute sum of absolute differences
Differential Revision: http://reviews.llvm.org/D12479
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246654
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Chad Rosier [Wed, 2 Sep 2015 14:06:16 +0000 (14:06 +0000)]
Add newline to test. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246653
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Joseph Tremoulet [Wed, 2 Sep 2015 13:36:25 +0000 (13:36 +0000)]
[TableGen] Allow TokenTy in intrinsic signatures
Summary:
Add the necessary plumbing so that llvm_token_ty can be used as an
argument/return type in intrinsic definitions and correspondingly require
TokenTy in function types. TokenTy is an opaque type that has no target
lowering, but can be used in machine-independent intrinsics. It is
required for the upcoming llvm.eh.padparam intrinsic.
Reviewers: majnemer, rnk
Subscribers: stoklund, llvm-commits
Differential Revision: http://reviews.llvm.org/D12532
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246651
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Igor Breger [Wed, 2 Sep 2015 11:18:55 +0000 (11:18 +0000)]
AVX512: Implemented encoding and intrinsics for VGETMANTPD/S , VGETMANTSD/S instructions
Added tests for intrinsics and encoding.
Differential Revision: http://reviews.llvm.org/D11593
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246642
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NAKAMURA Takumi [Wed, 2 Sep 2015 10:59:21 +0000 (10:59 +0000)]
Suppress llvm/test/tools/gold/X86/parallel.ll while investigating.
For me,
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7deb0dc in _dl_fixup () from /lib64/ld-linux-x86-64.so.2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246641
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Igor Breger [Wed, 2 Sep 2015 10:50:58 +0000 (10:50 +0000)]
AVX512: Implemented encoding and intrinsics for vshufps/d.
Added tests for intrinsics and encoding.
Differential Revision: http://reviews.llvm.org/D11709
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246640
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James Molloy [Wed, 2 Sep 2015 10:15:39 +0000 (10:15 +0000)]
[LV] Don't bail to MiddleBlock if a runtime check fails, bail to ScalarPH instead
We were bailing to two places if our runtime checks failed. If the initial overflow check failed, we'd go to ScalarPH. If any other check failed, we'd go to MiddleBlock. This caused us to have to have an extra PHI per induction and reduction as the vector loop's exit block was not dominated by its latch.
There's no need to have this behavior - if we just always go to ScalarPH we can get rid of a bunch of complexity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246637
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James Molloy [Wed, 2 Sep 2015 10:15:32 +0000 (10:15 +0000)]
[LV] Move some code around slightly to make the intent of the function more clear.
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246636
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James Molloy [Wed, 2 Sep 2015 10:15:27 +0000 (10:15 +0000)]
[LV] Cleanup: Sink an IRBuilder closer to its uses.
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246635
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James Molloy [Wed, 2 Sep 2015 10:15:22 +0000 (10:15 +0000)]
[LV] Refactor all runtime check emissions into helper functions.
This reduces the complexity of createEmptyBlock() and will open the door to further refactoring.
The test change is simply because we're now constant folding a trivial test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246634
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James Molloy [Wed, 2 Sep 2015 10:15:16 +0000 (10:15 +0000)]
[LV] Pull creation of trip counts into a helper function.
... and do a tad of tidyup while we're at it. Because StartIdx must now be zero, there's no difference between Count and EndIdx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246633
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James Molloy [Wed, 2 Sep 2015 10:15:09 +0000 (10:15 +0000)]
[LV] Factor the creation of the loop induction variable out of createEmptyLoop()
It makes things easier to understand if this is in a helper method. This is part of my ongoing spaghetti-removal operation on createEmptyLoop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246632
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James Molloy [Wed, 2 Sep 2015 10:15:05 +0000 (10:15 +0000)]
[LV] Never widen an induction variable.
There's no need to widen canonical induction variables. It's just as efficient to create a *new*, wide, induction variable.
Consider, if we widen an indvar, then we'll have to truncate it before its uses anyway (1 trunc). If we create a new indvar instead, we'll have to truncate that instead (1 trunc) [besides which IndVars should go and clean up our mess after us anyway on principle].
This lets us remove a ton of special-casing code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246631
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James Molloy [Wed, 2 Sep 2015 10:14:54 +0000 (10:14 +0000)]
[LV] Switch to using canonical induction variables.
Vectorized loops only ever have one induction variable. All induction PHIs from the scalar loop are rewritten to be in terms of this single indvar.
We were trying very hard to pick an indvar that already existed, even if that indvar wasn't canonical (didn't start at zero). But trying so hard is really fruitless - creating a new, canonical, indvar only results in one extra add in the worst case and that add is trivially easy to push through the PHI out of the loop by instcombine.
If we try and be less clever here and instead let instcombine clean up our mess (as we do in many other places in LV), we can remove unneeded complexity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246630
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NAKAMURA Takumi [Wed, 2 Sep 2015 10:11:26 +0000 (10:11 +0000)]
[CMake] Don't use OBJLIB on Xcode.
I got a few reports it didn't work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246629
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Elena Demikhovsky [Wed, 2 Sep 2015 09:20:58 +0000 (09:20 +0000)]
AVX-512: store <4 x i1> and <2 x i1> values in memory
Enabled DAG pattern lowering for SKX with DQI predicate.
Differential Revision: http://reviews.llvm.org/D12550
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246625
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Elena Demikhovsky [Wed, 2 Sep 2015 08:39:13 +0000 (08:39 +0000)]
Optimization for Gather/Scatter with uniform base
Vector 'getelementptr' with scalar base is an opportunity for gather/scatter intrinsic to generate a better sequence.
While looking for uniform base, we want to use the scalar base pointer of GEP, if exists.
Differential Revision: http://reviews.llvm.org/D11121
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246622
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Yaron Keren [Wed, 2 Sep 2015 06:34:11 +0000 (06:34 +0000)]
Move createEliminateAvailableExternallyPass earlier in the pass pipeline
to save running many ModulePasses on available external functions that
are thrown away anyhow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246619
91177308-0d34-0410-b5e6-
96231b3b80d8
Vedant Kumar [Wed, 2 Sep 2015 01:31:58 +0000 (01:31 +0000)]
[CodeGen] Fix FREM on 32-bit MSVC on x86
Patch by Dylan McKay!
Differential Revision: http://reviews.llvm.org/D12099
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246615
91177308-0d34-0410-b5e6-
96231b3b80d8