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Philip Reames [Tue, 2 Feb 2016 03:15:40 +0000 (03:15 +0000)]
[LVI] Introduce an intersect operation on lattice values
LVI has several separate sources of facts - edge local conditions, recursive queries, assumes, and control independent value facts - which all apply to the same value at the same location. The existing implementation was very conservative about exploiting all of these facts at once.
This change introduces an "intersect" function specifically to abstract the action of picking a good set of facts from all of the separate facts given. At the moment, this function is relatively simple (i.e. mostly just reuses the bits which were already there), but even the minor additions reveal the inherent power. For example, JumpThreading is now capable of doing an inductive proof that a particular value is always positive and removing a half range check.
I'm currently only using the new intersect function in one place. If folks are happy with the direction of the work, I plan on making a series of small changes without review to replace mergeIn with intersect at all the appropriate places.
Differential Revision: http://reviews.llvm.org/D14476
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259461
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Kostya Serebryany [Tue, 2 Feb 2016 03:03:47 +0000 (03:03 +0000)]
[libFuzzer] allow passing 1 or more files as individual inputs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259459
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Matthias Braun [Tue, 2 Feb 2016 02:44:25 +0000 (02:44 +0000)]
MachineVerifier: Use report_context() instead of ad-hoc messages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259457
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Sanjoy Das [Tue, 2 Feb 2016 02:32:43 +0000 (02:32 +0000)]
[X86] Fix a bug in getMemOpBaseRegImmOfs
Fix a crash in `getMemOpBaseRegImmOfs` that happens if the base of
`MemOp` is a frame index memory operand. The fix is to have
`getMemOpBaseRegImmOfs` bail out in such cases. We can possibly be more
clever here, if needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259456
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Kostya Serebryany [Tue, 2 Feb 2016 02:07:26 +0000 (02:07 +0000)]
[libFuzzer] fail if the corpus dir does not exist
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259454
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Ahmed Bougacha [Tue, 2 Feb 2016 01:44:03 +0000 (01:44 +0000)]
[X86][FastISel] Don't force Nearest-Even rounding for VCVTPS2PH, use MXCSR.
FastISel counterpart to r259448.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259449
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Ahmed Bougacha [Tue, 2 Feb 2016 01:32:50 +0000 (01:32 +0000)]
[X86] Don't force Nearest-Even rounding for VCVTPS2PH, use MXCSR.
Officially, we don't acknowledge non-default configurations of MXCSR,
as getting there would require usage of the FENV_ACCESS pragma (at
least insofar as rounding mode is concerned).
We don't support the pragma, so we can assume that the default
rounding mode - round to nearest, ties to even - is always used.
However, it's inconsistent with the rest of the instruction set,
where MXCSR is always effective (unless otherwise specified).
Also, it's an unnecessary obstacle to the few brave souls that use
fenv.h with LLVM.
Avoid the hard-coded rounding mode for fp_to_f16; use MXCSR instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259448
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Anna Zaks [Tue, 2 Feb 2016 01:03:11 +0000 (01:03 +0000)]
[safestack] Make sure the unsafe stack pointer is popped in all cases
The unsafe stack pointer is only popped in moveStaticAllocasToUnsafeStack so it won't happen if there are no static allocas.
Fixes https://llvm.org/bugs/show_bug.cgi?id=26122
Differential Revision: http://reviews.llvm.org/D16339
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259447
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Philip Reames [Tue, 2 Feb 2016 00:45:30 +0000 (00:45 +0000)]
[LVI] Fix a latent bug in getValueAt
This routine was returning Undefined for most queries. This was utterly wrong. Amusingly, we do not appear to have any callers of this which are actually trying to exploit unreachable code or this would have broken the world.
A better approach would be to explicit describe the intersection of facts. That's blocked behind http://reviews.llvm.org/D14476 and I wanted to fix the current bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259446
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Sanjay Patel [Mon, 1 Feb 2016 23:53:35 +0000 (23:53 +0000)]
fix typos; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259438
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Philip Reames [Mon, 1 Feb 2016 23:44:38 +0000 (23:44 +0000)]
[LVI] Missing test case from 259432
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259437
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Teresa Johnson [Mon, 1 Feb 2016 23:26:30 +0000 (23:26 +0000)]
Add test for PR26419 (stable function summary ordering)
Enhance an existing test to also check that the ordering of the function
summary entries is stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259434
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Philip Reames [Mon, 1 Feb 2016 23:21:11 +0000 (23:21 +0000)]
[LVI] Remove overly tight assert from 259429
I'll submit a test case shortly which covers this, but it's causing clang self host problems in the builders so I wanted to get it removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259432
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Simon Pilgrim [Mon, 1 Feb 2016 23:04:05 +0000 (23:04 +0000)]
[X86][AVX512] Add support for AVX512 VMOVD (load) shuffle decoding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259430
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Philip Reames [Mon, 1 Feb 2016 22:57:53 +0000 (22:57 +0000)]
[LVI] Add select handling
Teach LVI to handle select instructions in the exact same way it handles PHI nodes. This is useful since various parts of the optimizer convert PHI nodes into selects and we don't want these transformations to cause inferior optimization.
Note that this patch does nothing to exploit the implied constraint on the inputs represented by the select condition itself. That will be a later patch and is blocked on http://reviews.llvm.org/D14476
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259429
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Simon Pilgrim [Mon, 1 Feb 2016 22:26:28 +0000 (22:26 +0000)]
[X86][AVX512] Add support for AVX512 VMOVSD/VMOVSS shuffle decoding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259427
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Sanjay Patel [Mon, 1 Feb 2016 22:23:39 +0000 (22:23 +0000)]
function names start with a lowercase letter; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259425
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Sanjay Patel [Mon, 1 Feb 2016 22:10:26 +0000 (22:10 +0000)]
[InstCombine] simplify masked scatter/gather intrinsics with zero masks
A masked scatter with a zero mask means there's no store.
A masked gather with a zero mask means the passthru arg is returned.
This is a continuation of:
http://reviews.llvm.org/rL259369
http://reviews.llvm.org/rL259392
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259421
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Simon Pilgrim [Mon, 1 Feb 2016 22:05:50 +0000 (22:05 +0000)]
[X86][AVX512] Add support for AVX512 VINSERTPS shuffle decoding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259420
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Matthias Braun [Mon, 1 Feb 2016 22:05:16 +0000 (22:05 +0000)]
SmallSet/SmallPtrSet: Refuse huge Small numbers
These sets do linear searching in small mode; It is not a good idea to
use huge numbers as the small value here, save people from themselves by
adding a static_assert.
Differential Revision: http://reviews.llvm.org/D16706
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259419
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Simon Pilgrim [Mon, 1 Feb 2016 21:46:12 +0000 (21:46 +0000)]
[X86][SSE] Regenerated load vector + element extraction tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259416
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Chad Rosier [Mon, 1 Feb 2016 21:38:31 +0000 (21:38 +0000)]
Move comments a bit closer to associated code. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259411
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Simon Pilgrim [Mon, 1 Feb 2016 21:30:50 +0000 (21:30 +0000)]
[X86][SSE] Add AVX512 merge consecutive load tests
Add AVX512F/AVX512BW 512-bit tests.
Add AVX512F tests to existing 128/256-bit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259410
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Simon Pilgrim [Mon, 1 Feb 2016 21:06:32 +0000 (21:06 +0000)]
Regenerate vector blend tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259406
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Simon Pilgrim [Mon, 1 Feb 2016 21:01:29 +0000 (21:01 +0000)]
Regenerate vector sext/zext constant folding tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259405
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Jun Bum Lim [Mon, 1 Feb 2016 20:55:11 +0000 (20:55 +0000)]
Avoid inlining call sites in unreachable-terminated block
Summary:
If the normal destination of the invoke or the parent block of the call site is unreachable-terminated, there is little point in inlining the call site unless there is literally zero cost. Unlike my previous change (D15289), this change specifically handle the call sites followed by unreachable in the same basic block for call or in the normal destination for the invoke. This change could be a reasonable first step to conservatively inline call sites leading to an unreachable-terminated block while BFI / BPI is not yet available in inliner.
Reviewers: manmanren, majnemer, hfinkel, davidxl, mcrosier, dblaikie, eraman
Subscribers: dblaikie, davidxl, mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D16616
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259403
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Chad Rosier [Mon, 1 Feb 2016 20:54:36 +0000 (20:54 +0000)]
Remove extra semicolon. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259402
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Sanjoy Das [Mon, 1 Feb 2016 20:48:14 +0000 (20:48 +0000)]
[SCEV] Clean up isKnownPredicateViaConstantRanges; NFCI
- ScalarEvolution::isKnownPredicateViaConstantRanges duplicates some
logic already present in ConstantRange, use ConstantRange for those
bits.
- In some cases ScalarEvolution::isKnownPredicateViaConstantRanges
returns `false` to mean "definitely false" (e.g. see the
`LHSRange.getSignedMin().sge(RHSRange.getSignedMax())` case for
`ICmpInst::ICMP_SLT`), but for `isKnownPredicateViaConstantRanges`,
`false` actually means "don't know". Get rid of this extra bit of
code to avoid confusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259401
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Sanjoy Das [Mon, 1 Feb 2016 20:48:10 +0000 (20:48 +0000)]
[SCEV] Rename isKnownPredicateWithRanges; NFC
Make it obvious that it uses constant ranges, and use `Via` instead of
`With`, like other similar functions in SCEV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259400
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Rafael Espindola [Mon, 1 Feb 2016 20:36:49 +0000 (20:36 +0000)]
Fix infinite recursion in MCAsmStreamer::EmitValueImpl.
If a target can only emit 8-bits data, we would loop in EmitValueImpl
since it will try to split a 32-bits data in 1 chunk of 32-bits.
No test since all current targets can emit 32bits at a time.
Patch by Alexandru Guduleasa!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259399
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Teresa Johnson [Mon, 1 Feb 2016 20:16:35 +0000 (20:16 +0000)]
[ThinLTO] Ensure function summary output order is stable
Iterate over the function list instead of a DenseMap of Function pointers
when emitting the function summary into the module.
This fixes PR26419.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259398
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Rafael Espindola [Mon, 1 Feb 2016 19:56:12 +0000 (19:56 +0000)]
Add a test for r258362.
Thanks to Mehdi for finding it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259394
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Sanjay Patel [Mon, 1 Feb 2016 19:39:52 +0000 (19:39 +0000)]
[InstCombine] simplify masked store intrinsics with all ones or zeros masks
A masked store with a zero mask means there's no store.
A masked store with an allOnes mask means it's a normal vector store.
This is a continuation of:
http://reviews.llvm.org/rL259369
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259392
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Davide Italiano [Mon, 1 Feb 2016 19:22:16 +0000 (19:22 +0000)]
[llvm-nm] Simplify the code a bit. NFCI.
Fix a style violation while I'm here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259391
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Balaram Makam [Mon, 1 Feb 2016 19:13:07 +0000 (19:13 +0000)]
AArch64: Implement missed conditional compare sequences.
Summary:
This is an extension to the existing implementation of r242436 which
restricts to only select inputs. This version fixes missed opportunities
in pr26084 by attempting to lower conditional compare sequences of
and/or trees with setcc leafs. This will additionaly handle the case
when a tree with select input is not a conjunction-disjunction tree
but some of the sub trees are conjunction-disjunction trees.
Reviewers: jmolloy, t.p.northover, mcrosier, MatzeB
Subscribers: mcrosier, llvm-commits, junbuml, haicheng, mssimpso, gberry
Differential Revision: http://reviews.llvm.org/D16291
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259387
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Matthew Simpson [Mon, 1 Feb 2016 19:09:24 +0000 (19:09 +0000)]
Add test case missing from r259357 (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259385
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Geoff Berry [Mon, 1 Feb 2016 19:07:06 +0000 (19:07 +0000)]
[AArch64] Simplify prolog/epilog callee save/restore. NFC.
Summary:
Factor out common code for callee-save register pair calculation. This
is intended to simplify follow-on changes that reduce the number of
registers saved/restored.
Depends on D16732
Reviewers: mcrosier, jmolloy, t.p.northover
Subscribers: aemerson, rengolin, mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D16734
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259384
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Ulrich Weigand [Mon, 1 Feb 2016 18:31:19 +0000 (18:31 +0000)]
[SystemZ] Fix wrong-code generation for certain always-false conditions
We've found another bug in the code generation logic conditions for a
certain class of always-false conditions, those of the form
if ((a & 1) < 0)
These only reach the back end when compiling without optimization.
The bug was introduced by the choice of using TEST UNDER MASK
to implement a check for
if ((a & MASK) < VAL)
as
if ((a & MASK) == 0)
where VAL is less than the the lowest bit of MASK. This is correct
in all cases except for VAL == 0, in which case the original
condition is always false, but the replacement isn't.
Fixed by excluding that particular case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259381
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Colin LeMahieu [Mon, 1 Feb 2016 18:15:39 +0000 (18:15 +0000)]
[NFC] Referencing manual for reason why subregbit is checked
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259380
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Sanjay Patel [Mon, 1 Feb 2016 17:46:18 +0000 (17:46 +0000)]
fix broken check lines
Without the colon, it doesn't mean anything!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259377
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David Majnemer [Mon, 1 Feb 2016 17:37:56 +0000 (17:37 +0000)]
[InstCombine] Don't transform (X+INT_MAX)>=(Y+INT_MAX) -> (X<=Y)
This miscompile came about because we tried to use a transform which was
only appropriate for xor operators when addition was present.
This fixes PR26407.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259375
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Jun Bum Lim [Mon, 1 Feb 2016 17:03:07 +0000 (17:03 +0000)]
[ValueTracking] Improve isKnownNonZero for PHI of non-zero constants
It is clear that a PHI is a non-zero if all incoming values are non-zero constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259370
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Sanjay Patel [Mon, 1 Feb 2016 17:00:10 +0000 (17:00 +0000)]
[InstCombine] simplify masked load intrinsics with all ones or zeros masks
A masked load with a zero mask means there's no load.
A masked load with an allOnes mask means it's a normal vector load.
Differential Revision: http://reviews.llvm.org/D16691
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259369
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Geoff Berry [Mon, 1 Feb 2016 16:47:51 +0000 (16:47 +0000)]
[PrologEpilogInserter] Add some debug output for callee-save frame object allocation
Reviewers: mcrosier
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D16733
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259367
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Geoff Berry [Mon, 1 Feb 2016 16:29:19 +0000 (16:29 +0000)]
[AArch64] Simplify callee-save register save/restore. NFC.
Summary:
Simplify callee-save register save/restore code generation by
remembering the size of the callee-save area when it is computed so we
don't have to scan the prologue/epilogue instructions again later to
reconstruct it.
This is intended to simplify follow-on changes that reduce the number of
registers saved/restored.
Reviewers: mcrosier, jmolloy, t.p.northover
Subscribers: aemerson, rengolin, mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D16732
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259365
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Matthew Simpson [Mon, 1 Feb 2016 16:07:01 +0000 (16:07 +0000)]
[LV] Rename RdxPHIsToFix to PHIsToFix (NFC)
In the future, we will vectorize recurrences other than reductions. This patch
renames a few variables and updates their associated comments to enable them to
be reused for non-reduction PHI nodes.
This change was requested in the review for D16197.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259364
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Asaf Badouh [Mon, 1 Feb 2016 15:48:21 +0000 (15:48 +0000)]
[X86][AVX512VBMI] add encoding and intrinsics for Multishift
Differential Revision: http://reviews.llvm.org/D16399
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259363
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Vasileios Kalintiris [Mon, 1 Feb 2016 15:19:35 +0000 (15:19 +0000)]
[mips] Split large test file into 3 smaller ones.
Remove the old select.ll file and use select-int.ll, select-flt.ll,
select-dbl.ll for testing selects on integers, floats & doubles respectivelly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259361
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Daniel Sanders [Mon, 1 Feb 2016 15:13:31 +0000 (15:13 +0000)]
[mips] Range check uimm16 and fix several bugs this revealed.
Summary:
The bugs were:
* teq and similar take 4-bit unsigned immediates on microMIPS.
* teqi and similar have side-effects like teq do.
* shll_s.w and shra_r.w take 5-bit unsigned immediates.
* The various DSP ext* instructions take a 5-bit immediate.
* repl.qh takes an 8-bit unsigned immediate.
* repl.ph takes a 10-bit unsigned immediate.
* rddsp/wrdsp take a 10-bit unsigned immediate.
* teqi and similar take signed 16-bit immediates (10-bit for microMIPS).
* Out-of-range immediate macros for or/xor take a simm32/simm64 depending
on architecture. I'll fix the simm64 case properly when I reach simm32.
lui is a bit more lenient than GAS and accepts signed immediates in addition
to unsigned. This is because MipsMCExpr can produce signed values when
constant folding and it currently lacks a way of knowing it should fold to
an unsigned value.
Reviewers: vkalintiris
Subscribers: dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D15446
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259360
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Amjad Aboud [Mon, 1 Feb 2016 14:09:41 +0000 (14:09 +0000)]
Improved macro emission in dwarf.
Changed emitting offset of macinfo entry into compiler unit DIE to use "addSectionLabel" method rather than explicitly calculating size/offset of macro entry.
Differential Revision: http://reviews.llvm.org/D16292
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259358
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Matthew Simpson [Mon, 1 Feb 2016 13:38:29 +0000 (13:38 +0000)]
Reapply commit r258404 with fix.
The previous patch caused PR26364. The fix is to ensure that we don't enter a
cycle when iterating over use-def chains.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259357
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JF Bastien [Mon, 1 Feb 2016 10:46:16 +0000 (10:46 +0000)]
WebAssembly NFC: simplify control flow
This should now be easier to read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259349
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Ewan Crawford [Mon, 1 Feb 2016 10:39:24 +0000 (10:39 +0000)]
DWARF RenderScript vendor extension
Patch adds a DWARF language vendor extension for RenderScript.
We are already using this identifier in LLDB with a hard coded value, so it's preferable to use a LLVM generated enum instead.
The language is intended to be added to the next version of the standard.
See http://www.dwarfstd.org/ShowIssue.php?issue=150331.1
Reviewers: dexonsmith, echristo
Subscribers: probinson domipheus, srhines, llvm-commits
Differential Revision: http://reviews.llvm.org/D16409
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259348
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Igor Breger [Mon, 1 Feb 2016 09:57:15 +0000 (09:57 +0000)]
AVX512: fix mask handling for gather/scatter/prefetch intrinsics.
Differential Revision: http://reviews.llvm.org/D16755
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259346
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Simon Pilgrim [Mon, 1 Feb 2016 08:59:30 +0000 (08:59 +0000)]
[X86][SSE] Find source of the inserted element of INSERTPS
Minor patch to trace back through target shuffles to the source of the inserted element in a (V)INSERTPS shuffle.
Differential Revision: http://reviews.llvm.org/D16652
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259343
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Igor Breger [Mon, 1 Feb 2016 07:56:09 +0000 (07:56 +0000)]
AVX512 : Fix SETCCE lowering for KNL 32 bit.
Differential Revision: http://reviews.llvm.org/D16752
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259342
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Frederic Riss [Mon, 1 Feb 2016 04:43:14 +0000 (04:43 +0000)]
[dsymutil] Skip mach-o paired relocations
Noticed while working on scattered relocations.
I do not think these relocs can actually happen in the debug_info section,
but if they happen the code would mishandle them. Explicitely skip them
and warn if we encounter one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259341
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David Majnemer [Mon, 1 Feb 2016 04:28:59 +0000 (04:28 +0000)]
[X86] Cleanup the WinEHState pass
Remove unnecessary includes and class state.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259340
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Frederic Riss [Mon, 1 Feb 2016 03:44:22 +0000 (03:44 +0000)]
[dsymutil] Support scattered relocs.
Although it seems like clang will never emit scattered relocations in
the debug information (at least I couldn't find a way), we have too
support them for the benefit of other compilers.
As clang doesn't generate them, the included testcase was produced
from hacked up assembly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259339
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David Majnemer [Mon, 1 Feb 2016 03:29:38 +0000 (03:29 +0000)]
Revert r258580 and r258581.
Those commits created an artificial edge from a cleanup to a synthesized
catchswitch in order to get the MSVC personality routine to execute
cleanups which don't cleanupret and are not wrapped by a catchswitch.
This worked well enough but is not a complete solution in situations
where there the cleanup infinite loops.
However, the real deal breaker behind this approach comes about from a
degenerate case where the cleanup is post-dominated by unreachable *and*
throws an exception. This ends poorly because the catchswitch will
inadvertently catch the exception.
Because of this we should go back to our previous behavior of not
executing certain cleanups (identical behavior with the Itanium ABI
implementation in clang, GCC and ICC).
N.B. I think this could be salvaged by making the catchpad rethrow the
exception and properly transforming throwing calls in the cleanup into
invokes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259338
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Craig Topper [Mon, 1 Feb 2016 01:33:42 +0000 (01:33 +0000)]
[TableGen] Store result of getInstructionsByEnumValue in an ArrayRef instead of accidentally copying to a vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259336
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Frederic Riss [Sun, 31 Jan 2016 22:06:35 +0000 (22:06 +0000)]
[MCDwarf] Fix encoding of line tables with weird custom parameters
With poorly chosen custom parameters, the line table encoding logic would
sometimes end up generating a special opcode bigger than 255, which is wrong.
The set of default parameters that LLVM uses isn't subject to this bug.
When carefully chosing the line table parameters, it's impossible to fall into the
corner case that this patch fixes. The standard however doesn't require that these
parameters be carefully chosen. And even if it did, we shouldn't generate broken
encoding.
Add a unittest for this specific encoding bug, and while at it, create some unit
tests for the encoding logic using different sets of parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259334
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Craig Topper [Sun, 31 Jan 2016 20:00:26 +0000 (20:00 +0000)]
Remove utostr_32 as it has no uses anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259331
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Craig Topper [Sun, 31 Jan 2016 20:00:24 +0000 (20:00 +0000)]
Replace usages of llvm::utostr_32 with just llvm::utostr. While this is less efficient, its unclear the few places that were using the _32 version were doing so for efficiency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259330
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Craig Topper [Sun, 31 Jan 2016 20:00:22 +0000 (20:00 +0000)]
Merge utohex_buffer into utohexstr, it's only caller. Also change utohexstr to use the std::string constructor that takes a start and end pointer. This saves a call to strlen. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259329
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Sanjay Patel [Sun, 31 Jan 2016 16:35:23 +0000 (16:35 +0000)]
add helper function for minnum/maxnum ; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259326
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Sanjay Patel [Sun, 31 Jan 2016 16:34:48 +0000 (16:34 +0000)]
use range-based for loop; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259325
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Sanjay Patel [Sun, 31 Jan 2016 16:34:11 +0000 (16:34 +0000)]
fix formatting; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259324
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Sanjay Patel [Sun, 31 Jan 2016 16:33:33 +0000 (16:33 +0000)]
simplify; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259323
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Sanjay Patel [Sun, 31 Jan 2016 16:32:23 +0000 (16:32 +0000)]
clean up; NFC
function names, comments, formatting, typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259322
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JF Bastien [Sun, 31 Jan 2016 08:19:40 +0000 (08:19 +0000)]
WebAssembly: more failures are gone
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259321
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JF Bastien [Sun, 31 Jan 2016 08:05:05 +0000 (08:05 +0000)]
WebAssembly: update expected failures
r259305 fixed a few assertions around FrameIndex, and I forgot to update these failures despite having run the torture tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259320
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Frederic Riss [Sun, 31 Jan 2016 04:39:16 +0000 (04:39 +0000)]
[dsymutil] Fix FileCheck command.
Damn case-insensitive filesystem...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259319
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Frederic Riss [Sun, 31 Jan 2016 04:29:34 +0000 (04:29 +0000)]
[dsymutil] Fix handling of common symbols.
llvm-dsymutil was misinterpreting the value of common symbols as their
address when it actually contains their size. This didn't impact
llvm-dsymutil's ability to link the debug information for common symbols
because these are always found by name and not by address. Things could
however go wrong when the size of a common object matched the object
file address of another symbol. Depending on the link order of the symbols
the common object might incorrectly evict this other object from the
address to symbol mapping, and then link the evicted symbol with a wrong
binary address.
Use the new ability to have symbols without an object file address to fix
this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259318
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Frederic Riss [Sun, 31 Jan 2016 04:29:22 +0000 (04:29 +0000)]
[dsymutil] Allow debug map mappings with no object file address. NFC
This change just changes the data structure that ties symbol names,
object file address and linked binary addresses to accept mappings
with no object file address. Such symbol mappings are not fed into
the debug map yet, so this patch is NFC.
A subsequent patch will make use of this functionality for common
symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259317
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Tim Shen [Sun, 31 Jan 2016 03:59:34 +0000 (03:59 +0000)]
[SelectionDAG] Eliminate exponential behavior in WalkChainUsers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259315
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Craig Topper [Sun, 31 Jan 2016 01:55:15 +0000 (01:55 +0000)]
No need to use utostr/utohexstr when writing into a raw_ostream. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259314
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Craig Topper [Sun, 31 Jan 2016 01:12:38 +0000 (01:12 +0000)]
Shrink character buffer size in raw_ostream::write_hex to 16 characters intead of 20 as that's the largest string a 64-bit hex value can be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259313
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Craig Topper [Sun, 31 Jan 2016 01:12:35 +0000 (01:12 +0000)]
Use std::end instead of repeating buffer sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259312
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Craig Topper [Sun, 31 Jan 2016 00:15:35 +0000 (00:15 +0000)]
Convert int to Twine instead of using utostr since it was already being added to a Twine. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259308
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Jingyue Wu [Sat, 30 Jan 2016 23:48:47 +0000 (23:48 +0000)]
[doc] improve the doc for CUDA
1. Mentioned that CUDA support works best with trunk.
2. Simplified the example by removing its dependency on the CUDA samples.
3. Explain the --cuda-gpu-arch flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259307
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Derek Schuff [Sat, 30 Jan 2016 21:43:08 +0000 (21:43 +0000)]
[WebAssembly] Fix uses of FrameIndex as store values
Previously the code assumed all uses of FI on loads and stores were as
addresses. This checks whether the use is the address or a value and
handles the latter case as it does for non-memory instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259306
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JF Bastien [Sat, 30 Jan 2016 14:11:26 +0000 (14:11 +0000)]
WebAssembly: don't optimize frameindex store
The previous code was incorrect (can't getReg a frameindex). We could instead optimize it to reduce tree height, but I'm not sure that's worthwhile yet because we then try to eliminate the frameindex.
This patch also fixes frame index elimination for operations which may load or store: it used to assume the base was operand 2 and immediate offset operand 1. That's not true for stores, where they're 4 and 3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259305
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JF Bastien [Sat, 30 Jan 2016 11:19:26 +0000 (11:19 +0000)]
WebAssembly NFC: fix build warning
WebAssemblyFrameLowering.cpp:158:44: warning: enumeral and non-enumeral type in conditional expression [enabled by default]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259303
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Gerolf Hoflehner [Sat, 30 Jan 2016 05:58:38 +0000 (05:58 +0000)]
[BasicAA] NFC - revised comment for function adjustToPointerSize()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259300
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Gerolf Hoflehner [Sat, 30 Jan 2016 05:52:53 +0000 (05:52 +0000)]
[BasicAA] Fix for missing must alias (D16343)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259299
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Gerolf Hoflehner [Sat, 30 Jan 2016 05:35:09 +0000 (05:35 +0000)]
[BasicAA] Update on r259290 - added missing cast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259298
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Matt Arsenault [Sat, 30 Jan 2016 05:19:45 +0000 (05:19 +0000)]
AMDGPU: Fix emitting invalid workitem intrinsics for HSA
The AMDGPUPromoteAlloca pass was emitting the read.local.size
calls, which with HSA was incorrectly selected to reading from
the offset mesa uses off of the kernarg pointer.
Error on intrinsics which aren't supported by HSA, and start
emitting the correct IR to read the workgroup size
out of the dispatch pointer.
Also initialize the pass so it can be tested with opt, and
start moving towards not depending on the subtarget as an
argument.
Start emitting errors for the intrinsics not handled with HSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259297
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Matt Arsenault [Sat, 30 Jan 2016 05:10:59 +0000 (05:10 +0000)]
AMDGPU: Stop checking intrinsics not used by HSA for dispatch-ptr
Only the dispatch.ptr intrinsic is supposed to be used now to get
the workgroup size, and the read.local.size intrinsics do not
work correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259296
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Matt Arsenault [Sat, 30 Jan 2016 05:02:00 +0000 (05:02 +0000)]
InstCombine: fabs(x) * fabs(x) -> x * x
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259295
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Dan Gohman [Sat, 30 Jan 2016 05:01:06 +0000 (05:01 +0000)]
[WebAssembly] Refine block placement to insert blocks between trees.
Refine the test for whether an instruction is in an expression tree so that
it detects when one tree ends and another begins, so we can place a block
at that point, rather than continuing to find the first instruction not in
a tree at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259294
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Matt Arsenault [Sat, 30 Jan 2016 04:25:19 +0000 (04:25 +0000)]
AMDGPU: Add new amdgcn workitem intrinsics
These use the correct prefix and follow the HSA naming convention
rather than the config register option names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259293
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Justin Bogner [Sat, 30 Jan 2016 04:15:33 +0000 (04:15 +0000)]
Remove references to *.h.in files and some autoconf hackery
Missed this stuff in r259291.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259292
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Justin Bogner [Sat, 30 Jan 2016 04:05:45 +0000 (04:05 +0000)]
Remove *.h.in - these were only used by the autoconf build system
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259291
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Gerolf Hoflehner [Sat, 30 Jan 2016 02:42:11 +0000 (02:42 +0000)]
[BasicAA] NFC - utility function for two's complement wrap-around
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259290
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Xinliang David Li [Sat, 30 Jan 2016 01:37:32 +0000 (01:37 +0000)]
Further reduce test time
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259285
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Matthias Braun [Sat, 30 Jan 2016 01:24:31 +0000 (01:24 +0000)]
Avoid overly large SmallPtrSet/SmallSet
These sets perform linear searching in small mode so it is never a good
idea to use SmallSize/N bigger than 32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259283
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Matthias Braun [Sat, 30 Jan 2016 01:14:01 +0000 (01:14 +0000)]
Use Support/DataTypes.h instead of cstdint
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259282
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Alexey Samsonov [Sat, 30 Jan 2016 01:10:15 +0000 (01:10 +0000)]
[docs] Remove references to autotools build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259280
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Justin Lebar [Sat, 30 Jan 2016 01:07:38 +0000 (01:07 +0000)]
[CUDA] Die if we ask the NVPTX backend to emit a global ctor/dtor.
Summary: Previously we'd just silently skip these.
Reviewers: tra, jholewinski
Subscribers: llvm-commits, jhen, echristo,
Differential Revision: http://reviews.llvm.org/D16739
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259279
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