Peter Collingbourne [Wed, 21 Dec 2016 19:00:47 +0000 (19:00 +0000)]
TypeMetadataUtils: Simplify; spotted by Mehdi.
llvm-svn: 290264
Zachary Turner [Wed, 21 Dec 2016 18:50:52 +0000 (18:50 +0000)]
Add missing includes on Windows.
Patch by Andrey Khalyavin
Differential Revision: https://reviews.llvm.org/D27915
llvm-svn: 290263
Paul Robinson [Wed, 21 Dec 2016 18:33:17 +0000 (18:33 +0000)]
Make some diagnostic tests C++11 clean.
Differential Revision: http://reviews.llvm.org/D27794
llvm-svn: 290262
Michael Kuperstein [Wed, 21 Dec 2016 18:29:47 +0000 (18:29 +0000)]
[LLParser] Parse vector GEP constant expression correctly
The constantexpr parsing was too constrained and rejected legal vector GEPs.
This relaxes it to be similar to the ones for instruction parsing.
This fixes PR30816.
Differential Revision: https://reviews.llvm.org/D28013
llvm-svn: 290261
Michael Kuperstein [Wed, 21 Dec 2016 17:34:21 +0000 (17:34 +0000)]
[ConstantFolding] Fix vector GEPs harder
For vector GEPs, CastGEPIndices can end up in an infinite recursion, because
we compare the vector type to the scalar pointer type, find them different,
and then try to cast a type to itself.
Differential Revision: https://reviews.llvm.org/D28009
llvm-svn: 290260
Daniel Jasper [Wed, 21 Dec 2016 17:02:06 +0000 (17:02 +0000)]
clang-format: Fix bug in handling of single-column lists.
Members that are themselves wrapped in fake parentheses would lead to
AvoidBinPacking be set on the wrong ParenState.
After:
vector<int> aaaa = {
aaaaaa.
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
aaaaaa.
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
aaaaaa.aaaaaaa,
aaaaaa.aaaaaaa,
aaaaaa.aaaaaaa,
aaaaaa.aaaaaaa,
};
Before we were falling back to bin-packing these.
llvm-svn: 290259
Simon Pilgrim [Wed, 21 Dec 2016 16:39:09 +0000 (16:39 +0000)]
Wdocumentation fix
llvm-svn: 290258
Simon Pilgrim [Wed, 21 Dec 2016 15:49:01 +0000 (15:49 +0000)]
[CostModel] Pass shuffle mask args with ArrayRef. NFCI.
llvm-svn: 290257
Roman Gareev [Wed, 21 Dec 2016 12:51:12 +0000 (12:51 +0000)]
Change the determination of parameters of macro-kernel
Typically processor architectures do not include an L3 cache, which means that
Nc, the parameter of the micro-kernel, is, for all practical purposes,
redundant ([1]). However, its small values can cause the redundant packing of
the same elements of the matrix A, the first operand of the matrix
multiplication. At the same time, big values of the parameter Nc can cause
segmentation faults in case the available stack is exceeded.
This patch adds an option to specify the parameter Nc as a multiple of
the parameter of the micro-kernel Nr.
In case of Intel Core i7-3820 SandyBridge and the following options,
clang -O3 gemm.c -I utilities/ utilities/polybench.c -DPOLYBENCH_TIME
-march=native -mllvm -polly -mllvm -polly-pattern-matching-based-opts=true
-DPOLYBENCH_USE_SCALAR_LB -mllvm -polly-target-cache-level-associativity=8,8
-mllvm -polly-target-cache-level-sizes=32768,262144 -mllvm
-polly-target-latency-vector-fma=8
it helps to improve the performance from 11.303 GFlops/sec (39,247% of
theoretical peak) to 17.896 GFlops/sec (62,14% of theoretical peak).
Refs.:
[1] - http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf
Reviewed-by: Tobias Grosser <tobias@grosser.es>
Differential Revision: https://reviews.llvm.org/D28019
llvm-svn: 290256
Michael Zuckerman [Wed, 21 Dec 2016 12:48:01 +0000 (12:48 +0000)]
revert first commit . removing empty line in X86.h
llvm-svn: 290255
Michael Zuckerman [Wed, 21 Dec 2016 12:44:47 +0000 (12:44 +0000)]
First commit adding new line to X86.h
llvm-svn: 290254
Roman Gareev [Wed, 21 Dec 2016 12:37:36 +0000 (12:37 +0000)]
Align newly created arrays to the first level cache line boundary
Aligning data to cache lines boundaries helps to avoid overheads related to
an access to it ([1]). This patch aligns newly created arrays and adds an
option to specify the first level cache line size. By default we use 64 bytes,
which is a typical cache-line size ([2]).
In case of Intel Core i7-3820 SandyBridge and the following options,
clang -O3 gemm.c -I utilities/ utilities/polybench.c -DPOLYBENCH_TIME
-march=native -mllvm -polly -mllvm -polly-pattern-matching-based-opts=true
-DPOLYBENCH_USE_SCALAR_LB -mllvm -polly-target-cache-level-associativity=8,8
-mllvm -polly-target-cache-level-sizes=32768,262144 -mllvm
-polly-target-latency-vector-fma=8
it helps to improve the performance from 11.303 GFlops/sec (39,247% of
theoretical peak) to 12.63 GFlops/sec (43,8542% of theoretical peak).
Refs.:
[1] - http://www.alexonlinux.com/aligned-vs-unaligned-memory-access
[2] - http://igoro.com/archive/gallery-of-processor-cache-effects/
Differential Revision: https://reviews.llvm.org/D28020
Reviewed-by: Tobias Grosser <tobias@grosser.es>
llvm-svn: 290253
Davide Italiano [Wed, 21 Dec 2016 12:22:19 +0000 (12:22 +0000)]
[ELF/tests] Use cpio -it instead of cpio -t.
OpenBSD's cpio does not accept the -t option without -i.
Apparently some systems implement cpio -t as a shortcut
for cpio -it, the latter is the only thing that's documented.
This change avoids test failures on OpenBSD.
Patch by Mark Kettenis!
Differential Revision: https://reviews.llvm.org/D28002
llvm-svn: 290252
Roman Gareev [Wed, 21 Dec 2016 11:18:42 +0000 (11:18 +0000)]
[Polly] Use three-dimensional arrays to store packed operands of the matrix
multiplication
Previously we had two-dimensional accesses to store packed operands of
the matrix multiplication for the sake of simplicity of the packed arrays.
However, addition of the third dimension helps to simplify the corresponding
memory access, reduce the execution time of isl operations applied to it, and
consequently reduce the compile-time of Polly. For example, in case of
Intel Core i7-3820 SandyBridge and the following options,
clang -O3 gemm.c -I utilities/ utilities/polybench.c -DPOLYBENCH_TIME
-march=native -mllvm -polly -mllvm -polly-pattern-matching-based-opts=true
-DPOLYBENCH_USE_SCALAR_LB -mllvm -polly-target-cache-level-associativity=8,8
-mllvm -polly-target-cache-level-sizes=32768,262144 -mllvm
-polly-target-latency-vector-fma=7
it helps to reduce the compile-time from about 361.456 seconds to about 0.816
seconds.
Reviewed-by: Michael Kruse <llvm@meinersbur.de>,
Tobias Grosser <tobias@grosser.es>
Differential Revision: https://reviews.llvm.org/D27878
llvm-svn: 290251
Elena Demikhovsky [Wed, 21 Dec 2016 10:43:36 +0000 (10:43 +0000)]
Added a template for building target specific memory node in DAG.
I added API for creation a target specific memory node in DAG. Today, all memory nodes are common for all targets and their constructors are located in SelectionDAG.cpp.
There are some cases in X86 where we need to create a special node - truncation-with-saturation store, float-to-half-store.
In the current patch I added truncation-with-saturation nodes and I'm using them for intrinsics. In the future I plan to implement DAG lowering for truncation-with-saturation pattern.
Differential Revision: https://reviews.llvm.org/D27899
llvm-svn: 290250
Davide Italiano [Wed, 21 Dec 2016 10:19:00 +0000 (10:19 +0000)]
[AMDGPU] Garbage collect dead code. NFCI.
llvm-svn: 290249
Oren Ben Simhon [Wed, 21 Dec 2016 09:47:31 +0000 (09:47 +0000)]
[X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
Fixing a warning.
llvm-svn: 290248
George Rimar [Wed, 21 Dec 2016 09:42:25 +0000 (09:42 +0000)]
[ELF] - Linkerscript: Fall back to search paths when INCLUDE not found
From https://sourceware.org/binutils/docs/ld/File-Commands.html:
The file will be searched for in the current directory, and in any
directory specified with the -L option.
Patch done by Alexander Richardson.
Differential revision: https://reviews.llvm.org/D27831
llvm-svn: 290247
Oren Ben Simhon [Wed, 21 Dec 2016 09:18:37 +0000 (09:18 +0000)]
[X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
Fixing failing test.
llvm-svn: 290246
Oren Ben Simhon [Wed, 21 Dec 2016 09:04:08 +0000 (09:04 +0000)]
Reverting last change.
llvm-svn: 290245
Oren Ben Simhon [Wed, 21 Dec 2016 08:59:42 +0000 (08:59 +0000)]
[X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
Fixing build issues.
llvm-svn: 290244
George Rimar [Wed, 21 Dec 2016 08:58:36 +0000 (08:58 +0000)]
[ELF] - Removed trailing whitespaces. NFC.
llvm-svn: 290243
Oren Ben Simhon [Wed, 21 Dec 2016 08:58:19 +0000 (08:58 +0000)]
[X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
Fixing build issues.
llvm-svn: 290242
Rui Ueyama [Wed, 21 Dec 2016 08:40:09 +0000 (08:40 +0000)]
De-template DefinedSynthetic.
DefinedSynthetic is not created for a real ELF object, so it doesn't
have to be a template function. It has a virtual st_value, which is
either 32 bit or 64 bit, but we can simply use 64 bit.
llvm-svn: 290241
Oren Ben Simhon [Wed, 21 Dec 2016 08:31:45 +0000 (08:31 +0000)]
[X86] Vectorcall Calling Convention - Adding CodeGen Complete Support
The vectorcall calling convention specifies that arguments to functions are to be passed in registers, when possible.
vectorcall uses more registers for arguments than fastcall or the default x64 calling convention use.
The vectorcall calling convention is only supported in native code on x86 and x64 processors that include Streaming SIMD Extensions 2 (SSE2) and above.
The current implementation does not handle Homogeneous Vector Aggregates (HVAs) correctly and this review attempts to fix it.
This aubmit also includes additional lit tests to cover better HVAs corner cases.
Differential Revision: https://reviews.llvm.org/D27392
llvm-svn: 290240
George Rimar [Wed, 21 Dec 2016 08:21:34 +0000 (08:21 +0000)]
[ELF] - Do not call fatal() in Target.cpp, call error() instead.
We probably would want to avoid fatal() if we can in context of librarification,
but for me reason of that patch is to help D27900 go.
D27900 changes errors reporting to something like
error: text1
note: text2
note: text3
where hint used to provide additional information about location. In that case
I can't just call fatal() because user will not see notes after that what adds additional complication to handle.
So It is good to switch fatal() to error() where it is possible.
Also it adds testcase with broken relocation number.
Previously we did not have any, It checks that error() instead of fatal() works fine.
Differential revision: https://reviews.llvm.org/D27973
llvm-svn: 290239
George Rimar [Wed, 21 Dec 2016 08:11:49 +0000 (08:11 +0000)]
[ELF] - Fix use of freed memory.
It was revealed by D27831.
If we have linkerscript that includes another one that sets OUTPUT for example:
RUN: echo "INCLUDE \"foo.script\"" > %t.script
RUN: echo "OUTPUT(\"%t.out\")" > %T/foo.script
then we do:
void ScriptParser::readInclude() {
...
std::unique_ptr<MemoryBuffer> &MB = *MBOrErr;
tokenize(MB->getMemBufferRef());
OwningMBs.push_back(std::move(MB));
}
void ScriptParser::readOutput() {
...
Config->OutputFile = unquote(Tok);
...
}
Problem is that OwningMBs are destroyed after script parser do its job.
So all Toks are dead and Config->OutputFile points to destroyed data.
Patch suggests to save all included scripts into using string Saver.
Differential revision: https://reviews.llvm.org/D27987
llvm-svn: 290238
Simon Atanasyan [Wed, 21 Dec 2016 05:31:57 +0000 (05:31 +0000)]
[ELF][MIPS] Allow .MIPS.abiflags larger than one Elf_Mips_ABIFlags struct
Older versions of BFD generate libraries with .MIPS.abiflags that only
concatenate the individual .MIPS.abiflags sections instead of merging.
Patch by Alexander Richardson.
Differential revision: https://reviews.llvm.org/D27770
llvm-svn: 290237
David L. Jones [Wed, 21 Dec 2016 04:34:52 +0000 (04:34 +0000)]
Rename several methods on ASTRecordReader to follow LLVM style (lowerCamelCase).
Summary:
This follows up to r290217, and makes functions on ASTRecordReader consistent
and valid style.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D28008
llvm-svn: 290236
Adam Nemet [Wed, 21 Dec 2016 04:07:40 +0000 (04:07 +0000)]
[LDist] Match behavior between invoking via optimization pipeline or opt -loop-distribute
In r267672, where the loop distribution pragma was introduced, I tried
it hard to keep the old behavior for opt: when opt is invoked
with -loop-distribute, it should distribute the loop (it's off by
default when ran via the optimization pipeline).
As MichaelZ has discovered this has the unintended consequence of
breaking a very common developer work-flow to reproduce compilations
using opt: First you print the pass pipeline of clang
with -debug-pass=Arguments and then invoking opt with the returned
arguments.
clang -debug-pass will include -loop-distribute but the pass is invoked
with default=off so nothing happens unless the loop carries the pragma.
While through opt (default=on) we will try to distribute all loops.
This changes opt's default to off as well to match clang. The tests are
modified to explicitly enable the transformation.
llvm-svn: 290235
Sebastian Pop [Wed, 21 Dec 2016 03:37:39 +0000 (03:37 +0000)]
remove pretty-print test that requires debug
There is no need to test the pretty printer. Remove the boggus test to make the
build bots happy.
llvm-svn: 290234
Graydon Hoare [Wed, 21 Dec 2016 03:00:11 +0000 (03:00 +0000)]
Fix windows build breakage in r290219. Unix path separators in testcase.
llvm-svn: 290233
Tim Shen [Wed, 21 Dec 2016 02:39:21 +0000 (02:39 +0000)]
[APFloat] Remove 'else' after return. NFC
Reviewers: kbarton, iteratee, hfinkel, echristo
Subscribers: mehdi_amini, llvm-commits
Differential Revision: https://reviews.llvm.org/D27934
llvm-svn: 290232
Vitaly Buka [Wed, 21 Dec 2016 02:27:14 +0000 (02:27 +0000)]
Fix build broken by changes in StringMatcher interface r290213
llvm-svn: 290231
Lang Hames [Wed, 21 Dec 2016 02:08:23 +0000 (02:08 +0000)]
[Orc][RPC] Actually specialize SerializationTraits and RPCTypeName in the right
namespace.
r290226 was a think-o - just qualifying the name doesn't count.
llvm-svn: 290230
Richard Smith [Wed, 21 Dec 2016 01:57:02 +0000 (01:57 +0000)]
Fix defaulted-functions-in-C++98 extension to give the functions the same
effect they would have in C++11. In particular, they do not prevent
value-initialization from performing zero-initialization, nor do they prevent a
struct from being an aggregate.
llvm-svn: 290229
Sebastian Pop [Wed, 21 Dec 2016 01:41:12 +0000 (01:41 +0000)]
machine combiner: fix pretty printer
we used to print UNKNOWN instructions when the instruction to be printer was not
yet inserted in any BB: in that case the pretty printer would not be able to
compute a TII as the instruction does not belong to any BB or function yet.
This patch explicitly passes the TII to the pretty-printer.
Differential Revision: https://reviews.llvm.org/D27645
llvm-svn: 290228
Richard Smith [Wed, 21 Dec 2016 01:31:56 +0000 (01:31 +0000)]
[c++1z] When initializing a const-qualified class type, don't forget to add on
the requested cv-qualifiers after construction. This usually doesn't matter,
but it does matter within a ?: operator.
llvm-svn: 290227
Lang Hames [Wed, 21 Dec 2016 01:17:19 +0000 (01:17 +0000)]
[Orc][RPC] Specialize RPCTypeName and SerializationTraits in the right namespace.
llvm-svn: 290226
Richard Smith [Wed, 21 Dec 2016 01:10:31 +0000 (01:10 +0000)]
Factor out checking of template arguments after deduction into a separate
function. (This change would also allow us to handle default template arguments
in partial specializations if the standard ever permits them.)
llvm-svn: 290225
Antonio Maiorano [Wed, 21 Dec 2016 01:05:29 +0000 (01:05 +0000)]
Improve natvis for llvm::SmallString so that it correctly displays only the valid portion of the string
The usual method, and the one employed before my change, of displaying strings in natvis is to make use of the "<variable>,s" format specifier; however, this method only works for null-terminated strings. My fix here is to use the "<pointer>,[size]" format specifier to display a bounded array, and then cast it to "const char*", which in the MSVC debugger has the desired effect of rendering the character array as a string.
Differential Revision: https://reviews.llvm.org/D27972
llvm-svn: 290224
Lang Hames [Wed, 21 Dec 2016 00:59:33 +0000 (00:59 +0000)]
[Orc] Add some static-assert checks to improve the error messages for RPC calls
and handler registrations.
Also add a unit test for alternate-type serialization/deserialization.
llvm-svn: 290223
Peter Collingbourne [Wed, 21 Dec 2016 00:50:12 +0000 (00:50 +0000)]
IPO: Remove the ModuleSummary argument to the FunctionImport pass. NFCI.
No existing client is passing a non-null value here. This will come back
in a slightly different form as part of the type identifier summary work.
Differential Revision: https://reviews.llvm.org/D28006
llvm-svn: 290222
Graydon Hoare [Wed, 21 Dec 2016 00:48:14 +0000 (00:48 +0000)]
Fix build breakage in r290219. Notes should not be in diagnostic groups.
llvm-svn: 290221
Graydon Hoare [Wed, 21 Dec 2016 00:24:39 +0000 (00:24 +0000)]
[modules] Handle modules with nonstandard names in module.private.modulemaps
Summary:
The module system supports accompanying a primary module (say Foo) with
an auxiliary "private" module (defined in an adjacent module.private.modulemap
file) that augments the primary module when associated private headers are
available. The feature is intended to be used to augment the primary
module with a submodule (say Foo.Private), however some users in the wild
are choosing to augment the primary module with an additional top-level module
with a "similar" name (in all cases so far: FooPrivate).
This "works" when a user of the module initially imports a private header,
such as '#import "Foo/something_private.h"' since the Foo import winds up
importing FooPrivate in passing. But if the import is subsequently recorded
in a PCH file, reloading the PCH will fail to validate because of a cross-check
that attempts to find the module.modulemap (or module.private.modulemap) using
HeaderSearch algorithm, applied to the "FooPrivate" name. Since it's stored in
Foo.framework/Modules, not FooPrivate.framework/Modules, the check fails and
the PCH is rejected.
This patch adds a compensatory workaround in the HeaderSearch algorithm
when searching (and failing to find) a module of the form FooPrivate: the
name used to derive filesystem paths is decoupled from the module name
being searched for, and if the initial search fails and the module is
named "FooPrivate", the filesystem search name is altered to remove the
"Private" suffix, and the algorithm is run a second time (still looking for
a module named FooPrivate, but looking in directories derived from Foo).
Accompanying this change is a new warning that triggers when a user loads
a module.private.modulemap that defines a top-level module with a different
name from the top-level module defined in its adjacent module.modulemap.
Reviewers: doug.gregor, manmanren, bruno
Subscribers: bruno, cfe-commits
Differential Revision: https://reviews.llvm.org/D27852
llvm-svn: 290219
Evgeniy Stepanov [Wed, 21 Dec 2016 00:18:10 +0000 (00:18 +0000)]
Reduce the size of quarantine cache in ASAN_LOW_MEMORY configuration.
Summary:
Experiments show that on Android the current values result in too much
of the memory consumption for all quarantined chunks.
Reviewers: kcc, eugenis
Subscribers: mgorny, danalbert, srhines, llvm-commits, kubabrecka
Patch by Aleksey Shlyapnikov.
Differential Revision: https://reviews.llvm.org/D27873
llvm-svn: 290218
David L. Jones [Wed, 21 Dec 2016 00:17:49 +0000 (00:17 +0000)]
Store the "current position" index within the ASTRecordReader.
Summary:
For ASTDeclReader and ASTStmtReader, every parameter "unsigned &Idx" ultimately
comes from a variable that is defined on the stack, next to the RecordData. This
change moves that index into the ASTRecordReader.
TypeLocReader cannot be transitioned, due to TableGen-generated code which calls
ASTReader::GetTypeSourceInfo.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D27836
llvm-svn: 290217
Jim Ingham [Wed, 21 Dec 2016 00:12:54 +0000 (00:12 +0000)]
Ignore SIGPIPE in the mini-driver used by these tests.
We're seeing some very occasional failures in these tests where the
mini-driver dies with a SIGPIPE. We don't use SIGPIPE for anything, and
the main lldb driver program already ignores SIGPIPE, so ignoring it in
the mini-driver is a good way to remove these spurious failures.
<rdar://problem/
29740488>
llvm-svn: 290216
Rui Ueyama [Wed, 21 Dec 2016 00:05:39 +0000 (00:05 +0000)]
Move a function defintion to make it static.
llvm-svn: 290215
George Burgess IV [Tue, 20 Dec 2016 23:46:36 +0000 (23:46 +0000)]
[Analysis] Centralize objectsize lowering logic.
We're currently doing nearly the same thing for @llvm.objectsize in
three different places: two of them are missing checks for overflow,
and one of them could subtly break if InstCombine gets much smarter
about removing alloc sites. Seems like a good idea to not do that.
llvm-svn: 290214
Rui Ueyama [Tue, 20 Dec 2016 23:17:00 +0000 (23:17 +0000)]
Use ArrayRef instead of `const std::vector`.
llvm-svn: 290213
Rui Ueyama [Tue, 20 Dec 2016 23:09:09 +0000 (23:09 +0000)]
Move GlobPattern class from LLD to llvm/Support.
GlobPattern is a class to handle glob pattern matching. Currently
only LLD is using that, but technically that feature is not specific
to linkers, so in this patch I move that file to LLVM.
Differential Revision: https://reviews.llvm.org/D27969
llvm-svn: 290212
Michael Zolotukhin [Tue, 20 Dec 2016 23:03:42 +0000 (23:03 +0000)]
[SCEV] Be less conservative when extending bitwidths for computing ranges.
Summary:
In getRangeForAffineAR we compute ranges for affine exprs E = A + B*C,
where ranges for A, B, and C are known. To avoid overflow, we need to
operate on a bigger bitwidth, and originally we chose 2*x+1 for this
(x being the original bitwidth). However, it is safe to use just 2*x:
A+B*C <= (2^x - 1) + (2^x - 1)*(2^x - 1) =
= 2^x - 1 + 2^2x - 2^x - 2^x + 1 =
= 2^2x - 2^x <= 2^2x - 1
Unnecessary extending of bitwidths results in noticeable slowdowns: ranges
perform arithmetic operations using APInt, which are much slower when bitwidths
are bigger than 64.
Reviewers: sanjoy, majnemer, chandlerc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D27795
llvm-svn: 290211
Malcolm Parsons [Tue, 20 Dec 2016 22:57:21 +0000 (22:57 +0000)]
Comment out char16_t and char32_t tests
llvm-svn: 290210
Chris Bieneman [Tue, 20 Dec 2016 22:36:42 +0000 (22:36 +0000)]
Revert "[ObjectYAML] Support for DWARF debug_info section"
This reverts commit r290204.
Still breaking bots... In a meeting now, so I can't fix it immediately.
Bot URL:
http://lab.llvm.org:8011/builders/clang-s390x-linux/builds/2415
llvm-svn: 290209
Paul Robinson [Tue, 20 Dec 2016 22:30:44 +0000 (22:30 +0000)]
Make a test use a specific C++ dialect
In stack-reuse-miscompile.cpp, the allocas for the temps come out in
a different order depending on whether the dialect is C++03 or
C++11. Specify C++03 explicitly to avoid depending on the default.
Differential Revision: http://reviews.llvm.org/D27956
llvm-svn: 290208
Paul Robinson [Tue, 20 Dec 2016 22:26:11 +0000 (22:26 +0000)]
C++11 test cleanup: nonthrowing destructors
If a dtor has no interesting members, then it ends up being nothrow,
which affects the generated IR. Modify some tests to tolerate this
difference between C++03 and C++11.
Differential Revision: http://reviews.llvm.org/D27936
llvm-svn: 290207
Simon Atanasyan [Tue, 20 Dec 2016 22:24:45 +0000 (22:24 +0000)]
[ELF] Do not warn about missed entry symbol in case of relocatable output
Relocatable file does not need to have an entry symbol so the warning is
useless in that case.
llvm-svn: 290206
Paul Robinson [Tue, 20 Dec 2016 22:22:24 +0000 (22:22 +0000)]
Make two vtable tests tolerate C++11.
In C++11 we don't emit vtables as eagerly as we do for C++03, so
fiddle the tests to emit them when the test expects them.
Differential Revision: http://reviews.llvm.org/D27994
llvm-svn: 290205
Chris Bieneman [Tue, 20 Dec 2016 21:35:31 +0000 (21:35 +0000)]
[ObjectYAML] Support for DWARF debug_info section
This patch adds support for YAML<->DWARF for debug_info sections.
This re-lands r290147, after fixing the issue that caused bots to fail (thank you UBSan!).
llvm-svn: 290204
Richard Smith [Tue, 20 Dec 2016 21:35:28 +0000 (21:35 +0000)]
[c++1z] P0195R2: Support pack-expansion of using-declarations.
This change introduces UsingPackDecl as a marker for the set of UsingDecls
produced by pack expansion of a single (unresolved) using declaration. This is
not strictly necessary (we just need to be able to map from the original using
declaration to its expansions somehow), but it's useful to maintain the
invariant that each declaration reference instantiates to refer to one
declaration.
This is a re-commit of r290080 (reverted in r290092) with a fix for a
use-after-lifetime bug.
llvm-svn: 290203
Malcolm Parsons [Tue, 20 Dec 2016 21:26:07 +0000 (21:26 +0000)]
[clang-tidy] Add modernize-use-default-member-init check
Summary: Fixes PR18858
Reviewers: alexfh, hokein, aaron.ballman
Subscribers: JDevlieghere, Eugene.Zelenko, Prazek, mgorny, cfe-commits, modocache
Differential Revision: https://reviews.llvm.org/D26750
llvm-svn: 290202
Kostya Kortchinsky [Tue, 20 Dec 2016 21:17:58 +0000 (21:17 +0000)]
[scudo] ARM32 support
Summary:
With the previous modifications, the code works on ARM32. The random shuffle
test is unsupported on 32-bit platforms for the moment and being marked as
such. There is no hardware support for the checksum computation yet, this will
come at a later point.
Reviewers: kcc, alekseyshl
Subscribers: llvm-commits, aemerson, rengolin, mgorny
Differential Revision: https://reviews.llvm.org/D27957
llvm-svn: 290201
Peter Collingbourne [Tue, 20 Dec 2016 21:12:28 +0000 (21:12 +0000)]
IR: Eliminate non-determinism in the module summary analysis.
Also make the summary ref and call graph vectors immutable. This means
a smaller API surface and fewer places to audit for non-determinism.
Differential Revision: https://reviews.llvm.org/D27875
llvm-svn: 290200
Haicheng Wu [Tue, 20 Dec 2016 20:23:48 +0000 (20:23 +0000)]
[LoopUnroll] Modify a comment to clarify the usage of TripCount. NFC.
Make it clear that TripCount is the upper bound of the iteration on which
control exits LatchBlock.
Differential Revision: https://reviews.llvm.org/D26675
llvm-svn: 290199
Eli Friedman [Tue, 20 Dec 2016 20:05:07 +0000 (20:05 +0000)]
[ARM] Implement isExtractSubvectorCheap.
See https://reviews.llvm.org/D6678 for the history of
isExtractSubvectorCheap. Essentially the same considerations apply
to ARM.
This temporarily breaks the formation of vpadd/vpaddl in certain cases;
AddCombineToVPADDL essentially assumes that we won't form VUZP shuffles.
See https://reviews.llvm.org/D27779 for followup fix.
Differential Revision: https://reviews.llvm.org/D27774
llvm-svn: 290198
Boris Ulasevich [Tue, 20 Dec 2016 20:00:58 +0000 (20:00 +0000)]
Rollback my commit r290168 to fix linux tests failure. I'll be back!
llvm-svn: 290197
Eli Friedman [Tue, 20 Dec 2016 19:33:24 +0000 (19:33 +0000)]
[ARM] Generate checks for shuffle tests using update_llc_test_checks.py.
llvm-svn: 290196
Matt Arsenault [Tue, 20 Dec 2016 19:06:15 +0000 (19:06 +0000)]
Use MaxDepth instead of repeating its value
llvm-svn: 290194
Matt Arsenault [Tue, 20 Dec 2016 19:06:12 +0000 (19:06 +0000)]
AMDGPU: Allow 16-bit types in inline asm constraints
llvm-svn: 290193
Matt Arsenault [Tue, 20 Dec 2016 18:55:11 +0000 (18:55 +0000)]
AMDGPU: Run fp combine tests on VI
llvm-svn: 290192
Matt Arsenault [Tue, 20 Dec 2016 18:55:06 +0000 (18:55 +0000)]
AMDGPU: Don't add same instruction multiple times to worklist
When the instruction is processed the first time, it may be
deleted resulting in crashes. While the new test adds the same
user to the worklist twice, this particular case doesn't crash
but I'm not sure why.
llvm-svn: 290191
George Burgess IV [Tue, 20 Dec 2016 18:46:27 +0000 (18:46 +0000)]
Replace std::find_if with llvm::find_if. NFC.
llvm-svn: 290190
Zachary Turner [Tue, 20 Dec 2016 18:05:47 +0000 (18:05 +0000)]
Revert "Re-add the assert to StringRef's const char *, length constructor."
This reverts commit r290188, which is causing internal compiler errors
on GCC 4.8
llvm-svn: 290189
Zachary Turner [Tue, 20 Dec 2016 17:57:56 +0000 (17:57 +0000)]
Re-add the assert to StringRef's const char *, length constructor.
By putting the assert behind a conditional in the initializer list
we can ensure that it will still work in a constexpr context as
the else branch of the ternary operator won't be examined unless
the condition fails.
llvm-svn: 290188
David Blaikie [Tue, 20 Dec 2016 17:43:48 +0000 (17:43 +0000)]
Fix missing '>' in docs (hopefully fixes bot error... )
llvm-svn: 290187
David Blaikie [Tue, 20 Dec 2016 17:33:58 +0000 (17:33 +0000)]
Add some brief documentation about GDB pretty printers
llvm-svn: 290186
Tom Stellard [Tue, 20 Dec 2016 17:26:34 +0000 (17:26 +0000)]
AMDGPU/SI: Make a function const
llvm-svn: 290185
Tom Stellard [Tue, 20 Dec 2016 17:19:44 +0000 (17:19 +0000)]
AMDGPU/SI: Add a MachineMemOperand when lowering llvm.amdgcn.buffer.load.*
Reviewers: arsenm, nhaehnle, mareko
Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye
Differential Revision: https://reviews.llvm.org/D27834
llvm-svn: 290184
Simon Pilgrim [Tue, 20 Dec 2016 17:09:52 +0000 (17:09 +0000)]
[X86][SSE] Ensure we're only combining shuffles with legal mask types.
I haven't managed to get this to fail yet but its technically possible for the AND -> shuffle decomposition to result in illegal types.
llvm-svn: 290183
Alexey Bataev [Tue, 20 Dec 2016 16:51:02 +0000 (16:51 +0000)]
[OPENMP] Fix for PR31416: Clang crashes on OMPCapturedExpr during source
based coverage compilation
Added source location info to captured expression declaration + fixed
source location info for loop based directives.
llvm-svn: 290181
Chris Bieneman [Tue, 20 Dec 2016 16:28:18 +0000 (16:28 +0000)]
[CMake] [PR31433] Fix LLDB tool installation
This resolves PR 31433.
llvm-svn: 290180
Tom Stellard [Tue, 20 Dec 2016 15:52:17 +0000 (15:52 +0000)]
AMDGPU/SI: Add a MachineMemOperand to MIMG instructions
Summary:
Without a MachineMemOperand, the scheduler was assuming MIMG instructions
were ordered memory references, so no loads or stores could be reordered
across them.
Reviewers: arsenm
Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, tony-tye
Differential Revision: https://reviews.llvm.org/D27536
llvm-svn: 290179
Daniel Jasper [Tue, 20 Dec 2016 15:27:46 +0000 (15:27 +0000)]
clang-format: Fix bug in understanding string-label&value analysis.
While for <<-operators often used in log statments, a single key value
pair is always on the second operator, e.g.
llvm::errs() << "aaaaa=" << aaaaa;
It is on the first operator for plus- or comma-concatenated strings:
string s = "
aaaaaaaaaa: " +
aaaaaaaa;
(the "=" not counting because that's a different operator precedence)
llvm-svn: 290177
Eric Liu [Tue, 20 Dec 2016 14:39:04 +0000 (14:39 +0000)]
[change-namespace] do not fix calls to overloaded operator functions.
Summary: Also make sure one function reference is only processed once.
Reviewers: hokein
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D27982
llvm-svn: 290176
Alexey Bataev [Tue, 20 Dec 2016 12:10:05 +0000 (12:10 +0000)]
[OPENMP] Fix for PR31428: variable named like directive name modifier
Directive name modifiers in 'if' clause are allowed only for OpenMP 4.5
and higher + in OpenMP 4.5 parsing procedure emits error message if ':'
is not found after directive name modifier.
llvm-svn: 290175
George Rimar [Tue, 20 Dec 2016 11:28:54 +0000 (11:28 +0000)]
[ELF] - Treat .openbsd.randomdata as relro section
That was requested by Mark Kettenis in llvm-dev:
"It is the intention that .openbsd.randomdata sections are made
read-only after initialization. The native (ld.bfd based) OpenBSD
toolchain accomplishes this by including .openbsd.randomdata into the
PT_GNU_RELRO segment."
He suggested code change, I added testcase.
Differential revision: https://reviews.llvm.org/D27974
llvm-svn: 290174
Daniel Jasper [Tue, 20 Dec 2016 10:05:04 +0000 (10:05 +0000)]
Revert "[OpenCL] Enabling the usage of CLK_NULL_QUEUE as compare operand."
This reverts commit r290171. It triggers a bunch of warnings, because
the new enumerator isn't handled in all switches. We want a warning-free
build.
Replied on the commit with more details.
llvm-svn: 290173
Kevin Funk [Tue, 20 Dec 2016 09:56:56 +0000 (09:56 +0000)]
Fix for clang_Cursor_getSpellingNameRange()
Summary:
Fixes spelling name ranges for user-defined string literal operators.
Example:
constexpr int operator""_toint(unsigned long long val)
{ return int(val); }
Before this patch the spelling name range on consisted of 'operator'.
After this patch: 'operator""_toint'.
Related to http://reviews.llvm.org/D5041, which fixes the function for
other cursor kinds.
Reviewers: akyrtzi, craigt, skalinichev, klimek, milianw, bkramer
Subscribers: cfe-commits
Tags: #clang-c
Differential Revision: https://reviews.llvm.org/D18462
llvm-svn: 290172
Egor Churaev [Tue, 20 Dec 2016 09:15:21 +0000 (09:15 +0000)]
[OpenCL] Enabling the usage of CLK_NULL_QUEUE as compare operand.
Summary: Enabling the compression of CLK_NULL_QUEUE to variable of type queue_t.
Reviewers: Anastasia
Subscribers: cfe-commits, yaxunl, bader
Differential Revision: https://reviews.llvm.org/D27569
llvm-svn: 290171
Serge Pavlov [Tue, 20 Dec 2016 08:48:51 +0000 (08:48 +0000)]
Fix build with expensive checks enabled
Include of llvm/IR/Verifier.h was removed from HexagonCommonGEP.cpp in r289604
as unused. In fact it is required when expensive checks are enabled, because
it declared function `verifyFunction`, which is called in conditionally compiled
part of the file.
llvm-svn: 290170
Chandler Carruth [Tue, 20 Dec 2016 08:28:19 +0000 (08:28 +0000)]
Revert r290149: Add the alloc_size attribute to clang.
This commit fails MSan when running test/CodeGen/object-size.c in
a confusing way. After some discussion with George, it isn't really
clear what is going on here. We can make the MSan failure go away by
testing for the invalid bit, but *why* things are invalid isn't clear.
And yet, other code in the surrounding area is doing precisely this and
testing for invalid.
George is going to take a closer look at this to better understand the
nature of the failure and recommit it, for now backing it out to clean
up MSan builds.
llvm-svn: 290169
Boris Ulasevich [Tue, 20 Dec 2016 08:09:50 +0000 (08:09 +0000)]
Bug 30863 - Step doesn't stop with coditional breakpoint on the next line
Fixed by additional completed plans detection, and applying them on breakpoint condition fail.
Thread::GetStopInfo reworked. New test added.
Review https://reviews.llvm.org/D26497
Many thanks to Jim
llvm-svn: 290168
Dimitry Andric [Tue, 20 Dec 2016 07:58:49 +0000 (07:58 +0000)]
Fix build breakage on FreeBSD after rL289878/rL289881
Summary:
After rL289878/rL289881, the build on FreeBSD is broken, because
sanitizer_platform_limits_posix.cc attempts to include <utmp.h> and use
`struct utmp`, neither of which are supported anymore on FreeBSD.
Fix this by adding `&& !SANITIZER_FREEBSD` in a few places, and stop
intercepting utmp functions altogether for FreeBSD.
Reviewers: kubabrecka, emaste, eugenis, ed
Subscribers: ed, llvm-commits
Differential Revision: https://reviews.llvm.org/D27902
llvm-svn: 290167
Richard Smith [Tue, 20 Dec 2016 07:24:53 +0000 (07:24 +0000)]
Add test for DR692.
llvm-svn: 290166
Rui Ueyama [Tue, 20 Dec 2016 05:49:56 +0000 (05:49 +0000)]
Remove extraneous space.
llvm-svn: 290165
Rui Ueyama [Tue, 20 Dec 2016 05:47:55 +0000 (05:47 +0000)]
Remove `Compressed` member from InputSectionData.
This value is used only once, and we can compute a value.
So we don't need to save it.
llvm-svn: 290164
Jason Molenda [Tue, 20 Dec 2016 04:54:04 +0000 (04:54 +0000)]
Change the timeout in CallBoardSystemServiceOpenApplication to
30 seconds to match the old springboard timeout; the launcher
should time out before that and we will hopefully get back
an informative error message instead of timing out ourselves.
llvm-svn: 290163
Chandler Carruth [Tue, 20 Dec 2016 03:32:17 +0000 (03:32 +0000)]
[PM] Rework a loop in the CGSCC update logic to be more conservative and
clear. The current RefSCC can occur in exactly one position so we should
just enforce that and leverage the property rather than checking for it
anywhere.
This addresses review comments made on another patch.
llvm-svn: 290162
Chandler Carruth [Tue, 20 Dec 2016 03:15:32 +0000 (03:15 +0000)]
[PM] Provide an initial, minimal port of the inliner to the new pass manager.
This doesn't implement *every* feature of the existing inliner, but
tries to implement the most important ones for building a functional
optimization pipeline and beginning to sort out bugs, regressions, and
other problems.
Notable, but intentional omissions:
- No alloca merging support. Why? Because it isn't clear we want to do
this at all. Active discussion and investigation is going on to remove
it, so for simplicity I omitted it.
- No support for trying to iterate on "internally" devirtualized calls.
Why? Because it adds what I suspect is inappropriate coupling for
little or no benefit. We will have an outer iteration system that
tracks devirtualization including that from function passes and
iterates already. We should improve that rather than approximate it
here.
- Optimization remarks. Why? Purely to make the patch smaller, no other
reason at all.
The last one I'll probably work on almost immediately. But I wanted to
skip it in the initial patch to try to focus the change as much as
possible as there is already a lot of code moving around and both of
these *could* be skipped without really disrupting the core logic.
A summary of the different things happening here:
1) Adding the usual new PM class and rigging.
2) Fixing minor underlying assumptions in the inline cost analysis or
inline logic that don't generally hold in the new PM world.
3) Adding the core pass logic which is in essence a loop over the calls
in the nodes in the call graph. This is a bit duplicated from the old
inliner, but only a handful of lines could realistically be shared.
(I tried at first, and it really didn't help anything.) All told,
this is only about 100 lines of code, and most of that is the
mechanics of wiring up analyses from the new PM world.
4) Updating the LazyCallGraph (in the new PM) based on the *newly
inlined* calls and references. This is very minimal because we cannot
form cycles.
5) When inlining removes the last use of a function, eagerly nuking the
body of the function so that any "one use remaining" inline cost
heuristics are immediately refined, and queuing these functions to be
completely deleted once inlining is complete and the call graph
updated to reflect that they have become dead.
6) After all the inlining for a particular function, updating the
LazyCallGraph and the CGSCC pass manager to reflect the
function-local simplifications that are done immediately and
internally by the inline utilties. These are the exact same
fundamental set of CG updates done by arbitrary function passes.
7) Adding a bunch of test cases to specifically target CGSCC and other
subtle aspects in the new PM world.
Many thanks to the careful review from Easwaran and Sanjoy and others!
Differential Revision: https://reviews.llvm.org/D24226
llvm-svn: 290161