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Mitch Phillips [Fri, 3 Nov 2017 20:54:26 +0000 (20:54 +0000)]
[cfi-verify] Add blacklist parsing for result filtering.
Adds blacklist parsing behaviour for filtering results into four categories:
- Expected Protected: Things that are not in the blacklist and are protected.
- Unexpected Protected: Things that are in the blacklist and are protected.
- Expected Unprotected: Things that are in the blacklist and are unprotected.
- Unexpected Unprotected: Things that are not in the blacklist and are unprotected.
now can optionally be invoked with a second command line argument, which specifies the blacklist file that the binary was built with.
Current statistics for chromium:
Reviewers: vlad.tsyrklevich
Subscribers: mgorny, llvm-commits, pcc, kcc
Differential Revision: https://reviews.llvm.org/D39525
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317364
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Jun Bum Lim [Fri, 3 Nov 2017 20:41:16 +0000 (20:41 +0000)]
Recommit r317351 : Add CallSiteSplitting pass
This recommit r317351 after fixing a buildbot failure.
Original commit message:
Summary:
This change add a pass which tries to split a call-site to pass
more constrained arguments if its argument is predicated in the control flow
so that we can expose better context to the later passes (e.g, inliner, jump
threading, or IPA-CP based function cloning, etc.).
As of now we support two cases :
1) If a call site is dominated by an OR condition and if any of its arguments
are predicated on this OR condition, try to split the condition with more
constrained arguments. For example, in the code below, we try to split the
call site since we can predicate the argument (ptr) based on the OR condition.
Split from :
if (!ptr || c)
callee(ptr);
to :
if (!ptr)
callee(null ptr) // set the known constant value
else if (c)
callee(nonnull ptr) // set non-null attribute in the argument
2) We can also split a call-site based on constant incoming values of a PHI
For example,
from :
BB0:
%c = icmp eq i32 %i1, %i2
br i1 %c, label %BB2, label %BB1
BB1:
br label %BB2
BB2:
%p = phi i32 [ 0, %BB0 ], [ 1, %BB1 ]
call void @bar(i32 %p)
to
BB0:
%c = icmp eq i32 %i1, %i2
br i1 %c, label %BB2-split0, label %BB1
BB1:
br label %BB2-split1
BB2-split0:
call void @bar(i32 0)
br label %BB2
BB2-split1:
call void @bar(i32 1)
br label %BB2
BB2:
%p = phi i32 [ 0, %BB2-split0 ], [ 1, %BB2-split1 ]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317362
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David Blaikie [Fri, 3 Nov 2017 20:24:19 +0000 (20:24 +0000)]
Modularize: Include some required headers
DenseMaps require the definition of a type to be available when using a
pointer to that type as a key to know how many bits are available for
tombstone/etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317360
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Martin Storsjo [Fri, 3 Nov 2017 20:09:10 +0000 (20:09 +0000)]
[llvm-ar] Support an options string that start with a dash
Some projects call $AR like "$AR -crs output input1 input2".
Differential Revision: https://reviews.llvm.org/D39538
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317358
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Aaron Ballman [Fri, 3 Nov 2017 20:05:51 +0000 (20:05 +0000)]
Correcting some CRLFs that snuck in with my previous commit; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317357
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Aaron Ballman [Fri, 3 Nov 2017 20:01:25 +0000 (20:01 +0000)]
Add llvm::for_each as a range-based extensions to <algorithm> and make use of it in some cases where it is a more clear alternative to std::for_each.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317356
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Mitch Phillips [Fri, 3 Nov 2017 20:00:05 +0000 (20:00 +0000)]
[cfi-verify] Add an interesting unit test where undef search length changes result.
Add an interesting unit test, found by changing --search-length-undef from the default. Program handles it correctly but good for ensuring correctness on further changes :)
Reviewers: pcc
Subscribers: mgorny, llvm-commits, kcc, vlad.tsyrklevich
Differential Revision: https://reviews.llvm.org/D38658
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317355
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Craig Topper [Fri, 3 Nov 2017 19:37:41 +0000 (19:37 +0000)]
[X86] Promote athlon, athlon-xp, k8, and k8-sse3 to types instead of subtypes in getHostCPUName. NFCI
This removes the athlon type and simplifies the string decoding. We only really need these type/subtype breaks where we need to match libgcc/compiler-rt and these CPUs aren't part of that.
I'm looking into moving some of this information to a .def file to share with clang's __builtin_cpu_is handling. And while these CPUs aren't part of that the less lines I have to deal with in the .def file the better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317354
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Jun Bum Lim [Fri, 3 Nov 2017 19:17:11 +0000 (19:17 +0000)]
Revert "Add CallSiteSplitting pass"
Revert due to Buildbot failure.
This reverts commit r317351.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317353
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Jake Ehrlich [Fri, 3 Nov 2017 19:15:06 +0000 (19:15 +0000)]
Reland "Add support for writing 64-bit symbol tables for archives when offsets become too large for 32-bit"
Tests were failing because some bots were running out of address
space and memory. Additionally the test was very slow. These issues
were solved by changing the test to take advantage of sparse filse and
restricting the test to run only on 64-bit systems.
This should fix https://bugs.llvm.org//show_bug.cgi?id=34189
This change makes it so that if writing a K_GNU style archive, you need
to output a > 32-bit offset it should output in K_GNU64 style instead.
Differential Revision: https://reviews.llvm.org/D36812
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317352
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Jun Bum Lim [Fri, 3 Nov 2017 19:01:57 +0000 (19:01 +0000)]
Add CallSiteSplitting pass
Summary:
This change add a pass which tries to split a call-site to pass
more constrained arguments if its argument is predicated in the control flow
so that we can expose better context to the later passes (e.g, inliner, jump
threading, or IPA-CP based function cloning, etc.).
As of now we support two cases :
1) If a call site is dominated by an OR condition and if any of its arguments
are predicated on this OR condition, try to split the condition with more
constrained arguments. For example, in the code below, we try to split the
call site since we can predicate the argument (ptr) based on the OR condition.
Split from :
if (!ptr || c)
callee(ptr);
to :
if (!ptr)
callee(null ptr) // set the known constant value
else if (c)
callee(nonnull ptr) // set non-null attribute in the argument
2) We can also split a call-site based on constant incoming values of a PHI
For example,
from :
BB0:
%c = icmp eq i32 %i1, %i2
br i1 %c, label %BB2, label %BB1
BB1:
br label %BB2
BB2:
%p = phi i32 [ 0, %BB0 ], [ 1, %BB1 ]
call void @bar(i32 %p)
to
BB0:
%c = icmp eq i32 %i1, %i2
br i1 %c, label %BB2-split0, label %BB1
BB1:
br label %BB2-split1
BB2-split0:
call void @bar(i32 0)
br label %BB2
BB2-split1:
call void @bar(i32 1)
br label %BB2
BB2:
%p = phi i32 [ 0, %BB2-split0 ], [ 1, %BB2-split1 ]
Reviewers: davidxl, huntergr, chandlerc, mcrosier, eraman, davide
Reviewed By: davidxl
Subscribers: sdesmalen, ashutosh.nema, fhahn, mssimpso, aemerson, mgorny, mehdi_amini, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D39137
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317351
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Jake Ehrlich [Fri, 3 Nov 2017 18:58:41 +0000 (18:58 +0000)]
[llvm-objcopy] Add support for dwarf fission
This change adds support for dwarf fission.
Differential Revision: https://reviews.llvm.org/D39207
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317350
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Evandro Menezes [Fri, 3 Nov 2017 18:56:36 +0000 (18:56 +0000)]
[AArch64] Fix the number of iterations for the Newton series
The number of iterations was incorrectly determined for DP FP vector types
and the tests were insufficient to flag this issue.
Differential revision: https://reviews.llvm.org/D39507
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317349
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Evgeny Stupachenko [Fri, 3 Nov 2017 18:50:03 +0000 (18:50 +0000)]
The patch fixes PR35131
Summary:
Fix a misprint which led to false CTLZ recognition.
Reviewers: craig.topper
Differential Revision: https://reviews.llvm.org/D39585
From: Evgeny Stupachenko <evstupac@gmail.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317348
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Adrian Prantl [Fri, 3 Nov 2017 18:26:36 +0000 (18:26 +0000)]
Revert "Invoke salvageDebugInfo from CodeGenPrepare's SinkCast()"
This reverts commit 317342 while investigating bot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317345
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Craig Topper [Fri, 3 Nov 2017 18:02:46 +0000 (18:02 +0000)]
[CodeGen] Remove unnecessary semicolons to fix a warning. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317342
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Craig Topper [Fri, 3 Nov 2017 18:02:44 +0000 (18:02 +0000)]
[X86] Initialize Type and Subtype in getHostCPUName to 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317341
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Adrian Prantl [Fri, 3 Nov 2017 18:00:02 +0000 (18:00 +0000)]
Invoke salvageDebugInfo from CodeGenPrepare's SinkCast()
This preserves the debug info for the cast operation in the original location.
rdar://problem/
33460652
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317340
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Jun Bum Lim [Fri, 3 Nov 2017 16:24:53 +0000 (16:24 +0000)]
[LICM] sink through non-trivially replicable PHI
Summary:
The current LICM allows sinking an instruction only when it is exposed to exit
blocks through a trivially replacable PHI of which all incoming values are the
same instruction. This change enhance LICM to sink a sinkable instruction
through non-trivially replacable PHIs by spliting predecessors of loop
exits.
Reviewers: hfinkel, majnemer, davidxl, bmakam, mcrosier, danielcdh, efriedma, jtony
Reviewed By: efriedma
Subscribers: nemanjai, dberlin, llvm-commits
Differential Revision: https://reviews.llvm.org/D37163
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317335
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Alexey Bataev [Fri, 3 Nov 2017 16:17:13 +0000 (16:17 +0000)]
[SLP] Test for PR23510, NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317334
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Simon Dardis [Fri, 3 Nov 2017 15:35:13 +0000 (15:35 +0000)]
[mips] Match 'ins' and its' variants with C++ code
Change the ISel matching of 'ins', 'dins[mu]' from tablegen code to
C++ code. This resolves an issue where ISel would select 'dins' instead
of 'dinsm' when the instructions size and position were individually in
range but their sum was out of range according to the ISA specification.
Reviewers: atanasyan
Differential Revision: https://reviews.llvm.org/D39117
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317331
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Andrew V. Tischenko [Fri, 3 Nov 2017 15:25:13 +0000 (15:25 +0000)]
Fix for Bug 34475 - LOCK/REP/REPNE prefixes emitted as instruction on their own.
Differential Revision: https://reviews.llvm.org/D39546
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317330
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Anna Thomas [Fri, 3 Nov 2017 14:25:39 +0000 (14:25 +0000)]
[LoopPredication] NFC: Refactored code to separate out functions being reused
Summary:
Refactored the code to separate out common functions that are being
reused.
This is to reduce the changes for changes coming up wrt loop
predication with reverse loops.
This refactoring is what we have in our downstream code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317324
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Mikael Holmen [Fri, 3 Nov 2017 14:15:08 +0000 (14:15 +0000)]
[ADCE] Use MapVector for BlockInfo to make iteration order deterministic
Summary:
Also added a reserve() method to MapVector since we want to use that from
ADCE.
DenseMap does not provide deterministic iteration order so with that
we will handle the members of BlockInfo in random order, eventually
leading to random order of the blocks in the predecessor lists.
Without this change, I get the same predecessor order in about 90% of the
time when I compile a certain reproducer and in 10% I get a different one.
No idea how to make a proper test case for this.
Reviewers: kuhar, david2050
Reviewed By: kuhar
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39593
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317323
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Clement Courbet [Fri, 3 Nov 2017 12:12:27 +0000 (12:12 +0000)]
re-land [ExpandMemCmp] Split ExpandMemCmp from CodeGen into its own pass."
Fix undefined references: ExpandMemCmp belongs to CodeGen/, not Scalar/.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317318
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Simon Pilgrim [Fri, 3 Nov 2017 11:33:48 +0000 (11:33 +0000)]
[X86][SSE] Add PACKUS support to combineVectorTruncation
Similar to the existing code to lower to PACKSS, we can use PACKUS if the input vector's leading zero bits extend all the way to the packed/truncated value.
We have to account for pre-SSE41 targets not supporting PACKUSDW
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317315
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Florian Hahn [Fri, 3 Nov 2017 11:29:00 +0000 (11:29 +0000)]
[PartialInliner] Skip call sites where inlining fails.
Summary:
InlineFunction can fail, for example when trying to inline vararg
fuctions. In those cases, we do not want to bump partial inlining
counters or set AnyInlined to true, because this could leave an unused
function hanging around.
Reviewers: davidxl, davide, gyiu
Reviewed By: davide
Subscribers: llvm-commits, eraman
Differential Revision: https://reviews.llvm.org/D39581
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317314
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Diana Picus [Fri, 3 Nov 2017 10:30:19 +0000 (10:30 +0000)]
[globalisel][tablegen] Skip src child predicates
The GlobalISel TableGen backend didn't check for predicates on the
source children. This caused it to generate code for ARM patterns such
as SMLABB or similar, but without properly checking for the sext_16_node
part of the operands. This in turn meant that we would select SMLABB
instead of MLA for simple sequences such as s32 + s32 * s32, which is
wrong (we want a MLA on the full operands, not just their bottom 16
bits).
This patch forces TableGen to skip patterns with predicates on the src
children, so it doesn't generate code for SMLABB and other similar ARM
instructions at all anymore. AArch64 and X86 are not affected.
Differential Revision: https://reviews.llvm.org/D39554
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317313
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Diana Picus [Fri, 3 Nov 2017 10:30:12 +0000 (10:30 +0000)]
[ARM GlobalISel] Move the check for Thumb higher up
We're currently bailing out for Thumb targets while lowering formal
parameters, but there used to be some other checks before it, which
could've caused some functions (e.g. those without formal parameters) to
sneak through unnoticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317312
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Ivan A. Kosarev [Fri, 3 Nov 2017 10:26:25 +0000 (10:26 +0000)]
[Analysis] Refine matching and merging of TBAA tags
This patch combines the code that matches and merges TBAA access
tags. The aim is to simplify future changes and making sure that
these operations produce consistent results.
Differential Revision: https://reviews.llvm.org/D39463
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317311
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Francis Visoiu Mistrih [Fri, 3 Nov 2017 09:46:36 +0000 (09:46 +0000)]
[PEI] Simplify handling of targets with no phys regs. NFC
Make doSpillCalleeSavedRegs a member function, instead of passing most of the
members of PEI as arguments.
Differential Review: https://reviews.llvm.org/D35642
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317309
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Martin Storsjo [Fri, 3 Nov 2017 07:33:20 +0000 (07:33 +0000)]
[AArch64] Use dwarf exception handling on MinGW
Ideally we should probably produce WinEH here as well, but until
then, we can use dwarf exceptions, without any further changes
required in clang, libunwind or libcxxabi.
Differential Revision: https://reviews.llvm.org/D39535
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317304
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Max Kazantsev [Fri, 3 Nov 2017 07:30:45 +0000 (07:30 +0000)]
[NFC] Get rid of hard-coded value ID in test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317303
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Martin Storsjo [Fri, 3 Nov 2017 07:18:21 +0000 (07:18 +0000)]
[llvm-nm] Don't error out on multiple occurrances of the -g/--external-only flag
GNU binutils nm doesn't error out on this, and some projects' build
systems can end up doing that in some cases. Allowing that seems like
a better target than trying to avoid user projects passing multiple
-g parameters to $NM.
Differential Revision: https://reviews.llvm.org/D39539
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317301
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Martin Storsjo [Fri, 3 Nov 2017 07:18:14 +0000 (07:18 +0000)]
[llvm-nm] Print 'I' for import table data in COFF
The character gets uppercased into 'I' when it's a global symbol.
In GNU binutils, nm prints 'I' for symbols classified by
bfd_is_ind_section - which probably isn't exactly/only import
tables.
When building for win32, (some incarnations of?) libtool has got
rules that try to inspect linked libraries, and in order to
be sure that it is linking to a DLL import library as opposed to
a static library, it expects to find the string " I " in the output
of $NM when run on such an import library.
GNU binutils nm also flags all of the .idata$X chunks as 'i' (while
this patch only makes it set on .idata$2 and .idata$6) and also
flags __imp__function as 'I'.
Differential Revision: https://reviews.llvm.org/D39540
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317300
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Craig Topper [Fri, 3 Nov 2017 06:48:02 +0000 (06:48 +0000)]
[X86] Remove PALIGNR/VALIGN handling from combineBitcastForMaskedOp and move to isel patterns instead. Prefer 128-bit VALIGND/VALIGNQ over PALIGNR during lowering when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317299
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Craig Topper [Fri, 3 Nov 2017 05:19:34 +0000 (05:19 +0000)]
[TableGen] Add an extra blank line to DAGISel output file to separate functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317298
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Vedant Kumar [Fri, 3 Nov 2017 01:01:28 +0000 (01:01 +0000)]
[LSR] Clarify a comment. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317295
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Sriraman Tallam [Fri, 3 Nov 2017 00:10:19 +0000 (00:10 +0000)]
Avoid PLT for external calls when attribute nonlazybind is used.
Differential Revision: https://reviews.llvm.org/D39065
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317292
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Jake Ehrlich [Thu, 2 Nov 2017 23:45:51 +0000 (23:45 +0000)]
Reland "Add feature to determine if host architecture is 64-bit in llvm-lit"
A member of config was removed in this patch which resulted in errors I
didn't expect. Removing config.host_arch will take more work some I'm
readding that field.
Differential Revision: https://reviews.llvm.org/D39465
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317289
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Vedant Kumar [Thu, 2 Nov 2017 23:44:20 +0000 (23:44 +0000)]
[Verifier] Remove the -verify-debug-info cl::opt
This cl::opt has been dead for a while. It's no longer possible to run
the verifier without also verifying debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317288
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Quentin Colombet [Thu, 2 Nov 2017 23:38:19 +0000 (23:38 +0000)]
[AArch64][RegisterBankInfo] Add mapping for G_FPEXT.
This fixes http://llvm.org/PR32560. We were missing a description for
half floating point type and as a result were using the FPR 32 mapping.
Because of the size mismatch the generic code was complaining that the
default mapping is not appropriate. Fix the mapping description so that
the default mapping can be properly applied.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317287
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Quentin Colombet [Thu, 2 Nov 2017 23:38:13 +0000 (23:38 +0000)]
[AArch64][RegisterBankInfo] Add FPR16 support in value mapping.
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317286
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Puyan Lotfi [Thu, 2 Nov 2017 23:37:32 +0000 (23:37 +0000)]
mir-canon: First commit.
mir-canon (MIRCanonicalizerPass) is a pass designed to reorder instructions and
rename operands so that two similar programs will diff more cleanly after being
run through mir-canon than they would otherwise. This project is still a work
in progress and there are ideas still being discussed for improving diff
quality.
M include/llvm/InitializePasses.h
M lib/CodeGen/CMakeLists.txt
M lib/CodeGen/CodeGen.cpp
A lib/CodeGen/MIRCanonicalizerPass.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317285
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Jake Ehrlich [Thu, 2 Nov 2017 23:24:04 +0000 (23:24 +0000)]
[llvm-objcopy] Fix bug in how segment alignment was being handled
Just aligning segment offsets to segment alignment is incorrect and also
wastes more space than is needed. The requirement is that p_offset ==
p_addr modulo p_align *not* that p_offset == 0 modulo p_align. Generally
speaking we've been using p_addr == 0 modulo p_align. In fact yaml2obj
can't even produce a valid situation which causes llvm-objcopy to
produce incorrect results because alignment and offset were both
inherited from the sections the program header covers. This change fixes
this bad behavior in llvm-objcopy.
Differential Revision: https://reviews.llvm.org/D39132
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317284
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Craig Topper [Thu, 2 Nov 2017 23:23:37 +0000 (23:23 +0000)]
[X86] Give AVX512VL instructions priority over their AVX equivalents.
I thought we had gotten all these priority bugs worked out, but I guess not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317283
91177308-0d34-0410-b5e6-
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Adrian Prantl [Thu, 2 Nov 2017 23:17:06 +0000 (23:17 +0000)]
IndVarSimplify: preserve debug information attached to widened PHI nodes.
This fixes PR35015.
https://bugs.llvm.org/show_bug.cgi?id=35015
Differential Revision: https://reviews.llvm.org/D39345
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317282
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Jake Ehrlich [Thu, 2 Nov 2017 23:14:55 +0000 (23:14 +0000)]
Add feature to determine if host architecture is 64-bit in llvm-lit
I have a test that I'd like to add to llvm that demands using more than
32-bits worth of address space. This test can't be run on 32-bit systems
because they don't have enough address space. The host triple should be
used to determine this instead of config.host_arch because on Debian
systems config.host_arch is not correct. This change adds the
"host-arch-is-64bit" feature to allow tests to restrict themselves to
the 64-bit case.
Differential Revision: https://reviews.llvm.org/D39465
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317281
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Konstantin Zhuravlyov [Thu, 2 Nov 2017 22:35:22 +0000 (22:35 +0000)]
AMDGPU: Fix warning discovered by r317266 [-Wunused-private-field]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317280
91177308-0d34-0410-b5e6-
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Hiroshi Yamauchi [Thu, 2 Nov 2017 22:26:51 +0000 (22:26 +0000)]
Irreducible loop metadata for more accurate block frequency under PGO.
Summary:
Currently the block frequency analysis is an approximation for irreducible
loops.
The new irreducible loop metadata is used to annotate the irreducible loop
headers with their header weights based on the PGO profile (currently this is
approximated to be evenly weighted) and to help improve the accuracy of the
block frequency analysis for irreducible loops.
This patch is a basic support for this.
Reviewers: davidxl
Reviewed By: davidxl
Subscribers: mehdi_amini, llvm-commits, eraman
Differential Revision: https://reviews.llvm.org/D39028
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317278
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Krzysztof Parzyszek [Thu, 2 Nov 2017 21:56:59 +0000 (21:56 +0000)]
[Hexagon] Prefer L2_loadrub_io over L4_loadrub_rr
If the offset is an immediate, avoid putting it in a register
to get Rs+Rt<<#0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317275
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Shoaib Meenai [Thu, 2 Nov 2017 21:43:32 +0000 (21:43 +0000)]
[tools] Add option to install binutils symlinks
The LLVM tools can be used as a replacement for binutils, in which case
it's convenient to create symlinks with the binutils names. Add support
for these symlinks in the build system. As with any other llvm tool
symlinks, the user can limit the installed symlinks by only adding the
desired ones to `LLVM_TOOLCHAIN_TOOLS`.
Differential Revision: https://reviews.llvm.org/D39530
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317272
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Adrian Prantl [Thu, 2 Nov 2017 21:35:37 +0000 (21:35 +0000)]
Clean up comments in include/llvm-c/DebugInfo.h
Patch by Harlan Haskins!
Differential Revision: https://reviews.llvm.org/D39568
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317271
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Anna Thomas [Thu, 2 Nov 2017 21:21:02 +0000 (21:21 +0000)]
[LoopPredication] Enable predication when latchCheckIV is wider than rangeCheck
Summary:
This patch allows us to predicate range checks that have a type narrower than
the latch check type. We leverage SCEV analysis to identify a truncate for the
latchLimit and latchStart.
There is also safety checks in place which requires the start and limit to be
known at compile time. We require this to make sure that the SCEV truncate expr
for the IV corresponding to the latch does not cause us to lose information
about the IV range.
Added tests show the loop predication over range checks that are of various
types and are narrower than the latch type.
This enhancement has been in our downstream tree for a while.
Reviewers: apilipenko, sanjoy, mkazantsev
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39500
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317269
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Adrian Prantl [Thu, 2 Nov 2017 20:58:58 +0000 (20:58 +0000)]
Add missing header guards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317267
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Konstantin Zhuravlyov [Thu, 2 Nov 2017 20:48:06 +0000 (20:48 +0000)]
AMDGPU: Remove outdated fixme (it was already fixed)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317266
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Shoaib Meenai [Thu, 2 Nov 2017 20:33:36 +0000 (20:33 +0000)]
[cmake] Remove policy conditionals
LLVM now requires a minimum of cmake 3.4.3, and all the policies
currently being set are present in that cmake version, so the
conditionals will always be true and are therefore unnecessary. The
movation is that the conditionals can give the false impression that the
policy settings are optional, whereas for example it's necessary to set
CMP0056 in order for `check_linker_flags` to operate correctly after
r316972. Inline the project version and language setting in the process.
Differential Revision: https://reviews.llvm.org/D39442
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317264
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Hans Wennborg [Thu, 2 Nov 2017 20:22:03 +0000 (20:22 +0000)]
Fix llvm-dsymutil test in -DLLVM_ENABLE_THREADS=OFF mode
After r316999, tools/dsymutil/X86/alias.test started failing in builds
that have threading disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317263
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Martin Storsjo [Thu, 2 Nov 2017 20:05:20 +0000 (20:05 +0000)]
[test] Move llvm-lib tests into tools/llvm-lib. NFC.
Similarly to SVN r317189 for llvm-dlltool, these are probably
easier to find in a tools subdirectory with a name identical to
the tool, than in a toplevel directory with a different name.
This matches the move of LibDriver itself in SVN r302995.
Differential Revision: https://reviews.llvm.org/D39531
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317262
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Craig Topper [Thu, 2 Nov 2017 19:13:34 +0000 (19:13 +0000)]
[X86] Simplify the pentium4 code in getHostCPUName to be based on feature flags. Don't use 'x86-64' ever.
'x86-64' has started to reflect a sort of generic tuning flag for more modern 64-bit CPUs. We probably shouldn't be using it as the name of an unidentifiable pentium4. So use nocona for all 64-bit pentium4s instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317230
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Craig Topper [Thu, 2 Nov 2017 19:13:32 +0000 (19:13 +0000)]
[X86] Change getHostCPUName fallback code to not select 'x86-64' for unknown CPUs in family 6 that has 64-bit support but not any newer SSE features. Use 'core2' instead
We know that's the earliest CPU with 64-bit support. x86-64 has taken on a role of representing a more modern 64-bit CPU so we probably shouldn't be using that when we can't identify things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317229
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Jonas Devlieghere [Thu, 2 Nov 2017 18:44:54 +0000 (18:44 +0000)]
[dsymutil][doc] Improve wording in manpage and rename file.
- Improve wording
- Rename llvm-dsymutil to dsymutil
- Name -arch=<arch> argument
Differential revision: https://reviews.llvm.org/D39561
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317226
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Anna Thomas [Thu, 2 Nov 2017 18:24:04 +0000 (18:24 +0000)]
Strip off invariant.start because memory locations arent invariant
The original change was reverted in rL317217 because of the failure in
the RS4GC testcase. I couldn't reproduce the failure on my local machine
(macbook) but could reproduce it on a linux box.
The failure was around removing the uses of invariant.start. The fix
here is to just RAUW undef (which was the first implementation in D39388).
This is perfectly valid IR as discussed in the review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317225
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Mitch Phillips [Thu, 2 Nov 2017 18:04:44 +0000 (18:04 +0000)]
Fixed line length style issue.
Reviewers: zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39395
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317223
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Chad Rosier [Thu, 2 Nov 2017 17:52:27 +0000 (17:52 +0000)]
[TargetParser][AArch64] Reorder enum to preserve 5.0.0 libLLVM ABI.
This is required for backporting r311659 to the 5.0.1 release.
PR35060
Differential Revision: https://reviews.llvm.org/D39558
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317222
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Jonas Devlieghere [Thu, 2 Nov 2017 17:12:34 +0000 (17:12 +0000)]
[dsymutil] Add a manpage for dsymutil
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317221
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Anna Thomas [Thu, 2 Nov 2017 16:45:51 +0000 (16:45 +0000)]
Revert "[RS4GC] Strip off invariant.start because memory locations arent invariant"
This reverts commit r317215, investigating the test failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317217
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Anna Thomas [Thu, 2 Nov 2017 16:23:31 +0000 (16:23 +0000)]
[RS4GC] Strip off invariant.start because memory locations arent invariant
Summary:
Invariant.start on memory locations has the property that the memory
location is unchanging. However, this is not true in the face of
rewriting statepoints for GC.
Teach RS4GC about removing invariant.start so that optimizations after
RS4GC does not incorrect sink a load from the memory location past a
statepoint.
Added test showcasing the issue.
Reviewers: reames, apilipenko, dneilson
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39388
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317215
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Clement Courbet [Thu, 2 Nov 2017 15:53:10 +0000 (15:53 +0000)]
Revert "[ExpandMemCmp] Split ExpandMemCmp from CodeGen into its own pass."
undefined reference to `llvm::TargetPassConfig::ID' on
clang-ppc64le-linux-multistage
This reverts commit
eea333c33fa73ad225ef28607795984829f65688.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317213
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Clement Courbet [Thu, 2 Nov 2017 15:02:51 +0000 (15:02 +0000)]
[ExpandMemCmp] Split ExpandMemCmp from CodeGen into its own pass.
Summary:
This is mostly a noop (most of the test diffs are renamed blocks).
There are a few temporary register renames (eax<->ecx) and a few blocks are
shuffled around.
See the discussion in PR33325 for more details.
Reviewers: spatel
Subscribers: mgorny
Differential Revision: https://reviews.llvm.org/D39456
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317211
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Ayman Musa [Thu, 2 Nov 2017 13:07:06 +0000 (13:07 +0000)]
[X86] Fix bug in legalize vector types - Split large loads
When splitting a large load to smaller legally-typed loads, the last load should be padded to reach the size of the previous one so a CONCAT_VECTORS node could reunite them again.
The code currently pads the last load to reach the size of the first load (instead of the previous).
Differential Revision: https://reviews.llvm.org/D38495
Change-Id: Ib60b55ed26ce901fabf68108daf52683fbd5013f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317206
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Simon Dardis [Thu, 2 Nov 2017 12:47:22 +0000 (12:47 +0000)]
[mips] Use register scavenging with MSA.
MSA stores and loads to the stack are more likely to require an
emergency GPR spill slot due to the smaller offsets available
with those instructions.
Handle this by overestimating the size of the stack by determining
the largest offset presuming that all callee save registers are
spilled and accounting of incoming arguments when determining
whether an emergency spill slot is required.
Reviewers: atanasyan
Differential Revision: https://reviews.llvm.org/D39056
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317204
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Sam McCall [Thu, 2 Nov 2017 12:29:47 +0000 (12:29 +0000)]
Temporary workaround for msan false positive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317203
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Michael Zuckerman [Thu, 2 Nov 2017 12:19:36 +0000 (12:19 +0000)]
Adding test for extraxt sub vector load and store avx512
Change-Id: Iefcb0ec6b6aa1b530ce5358081f02e6e522a8e50
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317202
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Yichao Yu [Thu, 2 Nov 2017 12:18:33 +0000 (12:18 +0000)]
Allow inaccessiblememonly and inaccessiblemem_or_argmemonly to be overwriten on call site with operand bundle
Summary:
Similar to argmemonly, readonly and readnone.
Fix PR35128
Reviewers: andrew.w.kaylor, chandlerc, hfinkel
Reviewed By: hfinkel
Subscribers: hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D39434
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317201
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Francis Visoiu Mistrih [Thu, 2 Nov 2017 12:00:58 +0000 (12:00 +0000)]
[AsmPrinterDwarf] Add support for .cfi_restore directive
As of today we only use .cfi_offset to specify the offset of a CSR, but
we never use .cfi_restore when the CSR is restored.
If we want to perform a more advanced type of shrink-wrapping, we need
to use .cfi_restore in order to switch the CFI state between blocks.
This patch only aims at adding support for the directive.
Differential Revision: https://reviews.llvm.org/D36114
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317199
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Bjorn Pettersson [Thu, 2 Nov 2017 11:55:14 +0000 (11:55 +0000)]
[SimplifyCFG] Discard speculated dbg intrinsics
Summary:
SpeculativelyExecuteBB can flatten the CFG by doing
speculative execution followed by a select instruction.
When the speculatively executed BB contained dbg intrinsics
the result could be a little bit weird, since those dbg
intrinsics were inserted before the select in the flattened
CFG. So when single stepping in the debugger, printing the
value of the variable referenced in the dbg intrinsic, it
could happen that it looked like the variable had values
that never actually were assigned to the variable.
This patch simply discards all dbg intrinsics that were found
in the speculatively executed BB.
Reviewers: aprantl, chandlerc, craig.topper
Reviewed By: aprantl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39494
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317198
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Sam Parker [Thu, 2 Nov 2017 10:43:10 +0000 (10:43 +0000)]
[ARM] and, or, xor and add with shl combine
The generic dag combiner will fold:
(shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2)
(shl (or x, c1), c2) -> (or (shl x, c2), c1 << c2)
This can create constants which are too large to use as an immediate.
Many ALU operations are also able of performing the shl, so we can
unfold the transformation to prevent a mov imm instruction from being
generated.
Other patterns, such as b + ((a << 1) | 510), can also be simplified
in the same manner.
Differential Revision: https://reviews.llvm.org/D38084
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317197
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Andrew V. Tischenko [Thu, 2 Nov 2017 10:33:41 +0000 (10:33 +0000)]
The patch updates sched numbers for YMM AVX instrs such as VMOVx, VORx, VXOR, VPERMILx, VBROADCASTx, etc.
PR32857 should be closed.
Differential Revision: https://reviews.llvm.org/D39227
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317196
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Sam McCall [Thu, 2 Nov 2017 10:22:26 +0000 (10:22 +0000)]
Update go bindings to use new functions from rL317135.
This fixes duplicate symbol problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317195
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NAKAMURA Takumi [Thu, 2 Nov 2017 08:03:12 +0000 (08:03 +0000)]
llvm-c/DebugInfo.h: Fix warning. [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317191
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Martin Storsjo [Thu, 2 Nov 2017 08:02:03 +0000 (08:02 +0000)]
[test] Remove the leftover empty directory after SVN r317189. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317190
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Martin Storsjo [Thu, 2 Nov 2017 07:57:32 +0000 (07:57 +0000)]
[test] Move llvm-dlltool tests into tools/llvm-dlltool. NFC.
A toplevel test directory DllTool isn't consistent with other
similar tools.
Differential Revision: https://reviews.llvm.org/D39513
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317189
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Craig Topper [Thu, 2 Nov 2017 03:32:50 +0000 (03:32 +0000)]
[X86] Remove the model checks from the 486 detection code in Host.cpp
This just provided a bunch of comments to read and not much else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317185
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Craig Topper [Thu, 2 Nov 2017 03:32:49 +0000 (03:32 +0000)]
[X86] Simplify the detection of pentium-mmx in Host.cpp.
Rather than looking at model numbers just check for the mmx feature flag. While there promote INTEL_PENTIUM_MMX to a CPU type instead of a subtype so that we don't have weird type with only one subtype.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317184
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Eric Christopher [Thu, 2 Nov 2017 01:46:49 +0000 (01:46 +0000)]
Revert "Remove some of the go specific C bindings for debug info now that they've been migrated into the main C API."
This reverts commits r317151 and 317152
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317154
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Steven Wu [Thu, 2 Nov 2017 01:34:15 +0000 (01:34 +0000)]
[X86] Fix fast-isel-int-float-conversion test
Test is failing due to the revert in r317136. Fix the test to make all
the bots happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317153
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Eric Christopher [Thu, 2 Nov 2017 01:25:00 +0000 (01:25 +0000)]
Fix for go bindings header to match previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317152
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Eric Christopher [Thu, 2 Nov 2017 01:24:12 +0000 (01:24 +0000)]
Remove some of the go specific C bindings for debug info now that they've been migrated into the main C API.
Fixes a go bindings breakage after r317135.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317151
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Shoaib Meenai [Thu, 2 Nov 2017 01:07:37 +0000 (01:07 +0000)]
[cmake] Switch FATAL_ERROR to SEND_ERROR
It's possible for multiple distribution components to have missing
targets, and it's a lot more convenient to get all those errors in one
shot rather than having to fix them individually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317148
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Mitch Phillips [Wed, 1 Nov 2017 23:39:41 +0000 (23:39 +0000)]
Update cl::opt<uint64_t> instances to cl::opt<unsigned long long>
cl::opt<uint64_t> fails when parsing command line arguments.
See https://bugs.llvm.org/show_bug.cgi?id=19665.
Reviewers: pcc
Subscribers: mgorny, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D38657
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317141
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Jake Ehrlich [Wed, 1 Nov 2017 23:14:48 +0000 (23:14 +0000)]
[yaml2obj][ELF] Add support for setting alignment in program headers
Sometimes program headers have larger alignments than any of the
sections they contain. Currently yaml2obj can't produce such files. A
bug recently appeared in llvm-objcopy that failed in such a case. I'd
like to be able to add tests to llvm-objcopy for such cases.
This change adds an optional alignment parameter to program headers that
will be used instead of calculating the alignment.
Differential Revision: https://reviews.llvm.org/D39130
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317139
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Adrian Prantl [Wed, 1 Nov 2017 23:12:35 +0000 (23:12 +0000)]
loop-unroll: teach remapInstruction to update dbg.value intrinsics.
Fixes PR35112.
https://bugs.llvm.org/show_bug.cgi?id=35112
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317138
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Petar Jovanovic [Wed, 1 Nov 2017 23:05:52 +0000 (23:05 +0000)]
Revert "Correct dwarf unwind information in function epilogue for X86"
This reverts r317100 as it introduced sanitizer-x86_64-linux-autoconf
buildbot failure (build #15606).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317136
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whitequark [Wed, 1 Nov 2017 22:18:52 +0000 (22:18 +0000)]
[LLVM-C] Expose functions to create debug locations via DIBuilder.
These include:
* Several functions for creating an LLVMDIBuilder,
* LLVMDIBuilderCreateCompileUnit,
* LLVMDIBuilderCreateFile,
* LLVMDIBuilderCreateDebugLocation.
Patch by Harlan Haskins.
Differential Revision: https://reviews.llvm.org/D32368
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317135
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Craig Topper [Wed, 1 Nov 2017 22:15:49 +0000 (22:15 +0000)]
[X86] Use foreach in X86.td to combine some of the CPU names that are obviously aliases. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317134
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Craig Topper [Wed, 1 Nov 2017 22:15:40 +0000 (22:15 +0000)]
[X86] Add CMOV feature to 'i686' processor, making it a proper alias of pentiumpro which I believe it should be.
This is consistent with current gcc behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317133
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Daniel Sanders [Wed, 1 Nov 2017 22:13:05 +0000 (22:13 +0000)]
[globalisel][regbank] Warn about MIR ambiguities when register bank/class names clash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317132
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Simon Pilgrim [Wed, 1 Nov 2017 21:52:29 +0000 (21:52 +0000)]
[X86][SSE] Add PACKUS support to LowerTruncate
Similar to the existing code to lower to PACKSS, we can use PACKUS if the input vector's leading zero bits extend all the way to the packed/truncated value.
We have to account for pre-SSE41 targets not supporting PACKUSDW
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317128
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Rui Ueyama [Wed, 1 Nov 2017 21:38:14 +0000 (21:38 +0000)]
Rewrite FileOutputBuffer as two separate classes.
This patch is to rewrite FileOutputBuffer as two separate classes;
one for file-backed output buffer and the other for memory-backed
output buffer. I think the new code is easier to follow because two
different implementations are now actually separated as different
classes.
Unlike the previous implementation, the class that does not replace the
final output file using rename(2) does not create a temporary file at
all. Instead, it allocates memory using mmap(2) and use it. I think
this is an improvement because it is now guaranteed that the temporary
memory region doesn't trigger any I/O and there's now zero chance to
leave a temporary file behind. Also, it shouldn't impose new restrictions
because were using mmap IO too.
Differential Revision: https://reviews.llvm.org/D39449
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317127
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