The InstrProfWriter already stores the name and hash of the record in
the nested maps it uses for lookup while merging - this data is
duplicated in the value within the maps.
Refactor the InstrProfRecord to use a nested struct for the counters
themselves so that InstrProfWriter can use this nested struct alone
without the name or hash duplicated there.
This work is incomplete, but enough to demonstrate the value (around a
50% decrease in memory usage for a large test case (10GB -> 5GB)).
Though most of that decrease is probably from removing the
SoftInstrProfError as well, but I haven't implemented a replacement for
it yet. (it needs to go with the counters, because the operations on the
counters - merging, etc, are where the failures are - unlike the
name/hash which are totally unused by those counter-related operations
and thus easy to split out)
Ongoing discussion about removing SoftInstrProfError as a field of the
InstrProfRecord is happening on the thread that added it - including
the possibility of moving back towards an earlier version of that
proposed patch that passed SoftInstrProfError through the various APIs,
rather than as a member of InstrProfRecord.
Reviewers: davidxl
Differential Revision: https://reviews.llvm.org/D34838
llvm-svn: 307298
This reverts commit 5fecbbbe5049665d86834cf69d8f75db4f392308.
The initial revert was done in order to prevent ongoing errors on
chromium bots such as CrWinClangLLD. However, this was done haphazardly
and I didn't realize there were test and compilation failures, so this
revert was reverted. Now that those have been fixed, we can revert the
revert of the revert.
llvm-svn: 307226
This patch still seems to break CrWinClangLLD, reverting this once more
until I can discover root problem.
This reverts commit 3dbbc8ce43be50ffde2b1c655c6d3a25796fe78b.
llvm-svn: 307188
symbol resolver argument.
De-templatizing the symbol resolver is part of the ongoing simplification of
ORC layer API.
Removing the memory management argument (and delegating construction of memory
managers for RTDyldObjectLinkingLayer to a functor passed in to the constructor)
allows us to build JITs whose base object layers need not be compatible with
RTDyldObjectLinkingLayer's memory mangement scheme. For example, a 'remote
object layer' that sends fully relocatable objects directly to the remote does
not need a memory management scheme at all (that will be handled by the remote).
llvm-svn: 307058
Summary:
This is a follow-up on D34077. Elena observed that the
correctness of the code relies on isPowerOf2(0) returning false.
Adding a test to cover this corner-case.
Reviewers: delena, davide, craig.topper
Reviewed By: davide
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34939
llvm-svn: 307046
Summary:
This reverts commit 51931072a7c9a52540baf76fc30ef391d2529a2f.
This revert was originally done because the integrations of the new
WindowsResource library into LLD was causing error in chromium, due to
bugs in how resource sections were handled. These bugs were fixed,
meaning that the features may be reintegrated.
Subscribers: hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D34922
llvm-svn: 306941
This reverts commit r306907 and reapplies the patches in the title.
The patches used to make one of the
CodeGen/ARM/2011-02-07-AntidepClobber.ll test to fail because of a
missing null check.
llvm-svn: 306919
This reverts commit r306894.
Revert "[Dominators] Add NearestCommonDominator verification"
This reverts commit r306893.
Revert "[Dominators] Keep tree level in DomTreeNode and use it to find NCD and answer dominance queries"
This reverts commit r306892.
llvm-svn: 306907
Summary:
This patch makes DomTreeNodes keep their level (depth) in the DomTree. By having this information always available, it is possible to speedup and simplify findNearestCommonDominator and certain dominance queries.
In the future, level information will be also needed to perform incremental updates.
My testing doesn't show any noticeable performance differences after applying this patch. There may be some improvements when other passes are thought to use the level information.
Reviewers: dberlin, sanjoy, chandlerc, grosser
Reviewed By: dberlin
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34548
llvm-svn: 306892
This is a short-term fix for PR33650 aimed to get the modules build bots green again.
Remove all the places where we use the LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
macros to try to locally specialize a global template for a global type. That's
not how C++ works.
Instead, we now centrally define how to format vectors of fundamental types and
of string (std::string and StringRef). We use flow formatting for the former
cases, since that's the obvious right thing to do; in the latter case, it's
less clear what the right choice is, but flow formatting is really bad for some
cases (due to very long strings), so we pick block formatting. (Many of the
cases that were using flow formatting for strings are improved by this change.)
Other than the flow -> block formatting change for some vectors of strings,
this should result in no functionality change.
Differential Revision: https://reviews.llvm.org/D34907
Corresponding updates to clang, clang-tools-extra, and lld to follow.
llvm-svn: 306878
This fixes a cmake configuration issue when LLVM is configured with no targets.
Instead we need to add TestingSupport directly with target_link_libraries.
llvm-svn: 306842
Current implementation looks a bit confusing. It looks like it should
report/print something on error, but it does not do that.
It silently drops a error message when creating triple, though
this behavior is fine generally.
For example if LLVM configured with -DLLVM_TARGETS_TO_BUILD=ARM and
our host is windows, it is expected that we will be unable to
create "i386-pc-windows-msvc" target.
Patch introduces isConfigurationSupported() function that checks
if current configuration is supported for each test and returns early if not.
llvm-svn: 306812
In r301116, a custom lowering needed to be introduced to be able to
legalize 8 and 16-bit divisions on ARM targets without a division
instruction, since 2-step legalization (WidenScalar from 8 bit to 32
bit, then Libcall the 32-bit division) doesn't work.
This fixes this and makes this kind of multi-step legalization, where
first the size of the type needs to be changed and then some action is
needed that doesn't require changing the size of the type,
straighforward to specify.
Differential Revision: https://reviews.llvm.org/D32529
llvm-svn: 306806
Summary:
DFS InOut numbers currently get eagerly computer upon DomTree construction. They are only needed to answer dome dominance queries and they get invalidated by updates and recalculations. Because of that, it is faster in practice to compute them lazily when they are actually needed.
Clang built without this patch takes 6m 45s to boostrap on my machine, and with the patch applied 6m 38s.
Reviewers: sanjoy, dberlin, chandlerc
Reviewed By: dberlin
Subscribers: davide, llvm-commits
Differential Revision: https://reviews.llvm.org/D34296
llvm-svn: 306778
These overloads are essentially dead, and pose a maintenance cost
without adding any benefit. This is coming up now because I'd like to
experiment with changing the way we store coverage mapping data, and
would rather not have to fix up the old overloads while doing so.
Testing: check-{llvm,profile}, build clang.
llvm-svn: 306776
Requires callers to directly associate relocations with a DataExtractor
used to read data from a DWARF section, which helps a callee not make
assumptions about which section it is reading.
This is the next step in reducing DWARFFormValue's dependence on DWARFUnit.
Differential Revision: https://reviews.llvm.org/D34704
llvm-svn: 306699
The difference from the previous version is the use of decltype, as the
implementation of std::result_of in libc++ did not work correctly for
variadic function like open(2).
Original summary:
This function retries an operation if it was interrupted by a signal
(failed with EINTR). It's inspired by the TEMP_FAILURE_RETRY macro in
glibc, but I've turned that into a template function. I've also added a
fail-value argument, to enable the function to be used with e.g.
fopen(3), which is documented to fail for any reason that open(2) can
fail (which includes EINTR).
The main user of this function will be lldb, but there were also a
couple of uses within llvm that I could simplify using this function.
Reviewers: zturner, silvas, joerg
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D33895
llvm-svn: 306671
This reverts commit d4c7e9fc63c10dbab0c30186ef8575474a704496.
This is done in order to address the failure of CrWinClangLLD etc. bots.
These throw an error of "side-by-side configuration is incorrect" during
compilation, which sounds suspiciously related to these manifest
changes.
Revert "Switch external cvtres.exe for llvm's own resource library."
This reverts commit 71fe8ef283a9dab9a3f21432c98466cbc23990d1.
llvm-svn: 306618
With fix in include folder character case:
#include "llvm/Codegen/AsmPrinter.h" -> #include "llvm/CodeGen/AsmPrinter.h"
Original commit message:
Change introduces error reporting policy for DWARFContextInMemory.
New callback provided by client is able to handle error on it's
side and return Halt or Continue.
That allows to either keep current behavior when parser prints all errors
but continues parsing object or implement something very different, like
stop parsing on a first error and report an error in a client style.
Differential revision: https://reviews.llvm.org/D34328
llvm-svn: 306517
Change introduces error reporting policy for DWARFContextInMemory.
New callback provided by client is able to handle error on it's
side and return Halt or Continue.
That allows to either keep current behavior when parser prints all errors
but continues parsing object or implement something very different, like
stop parsing on a first error and report an error in a client style.
Differential revision: https://reviews.llvm.org/D34328
llvm-svn: 306512
Some forms have sizes that depend on the DWARF version, DWARF format
(32/64-bit), or the size of an address. Collect these into a struct
to simplify passing them around. Require callers to provide one when
they query a form's size.
Differential Revision: http://reviews.llvm.org/D34570
llvm-svn: 306315
This patch removes the dependency on the external rc.exe tool by writing
a simple .res file using our own library. In this patch I also added an
explicit definition for the .res file magic. Furthermore, I added a
unittest for embeded manifests and fixed a bug exposed by the test.
llvm-svn: 306311
Summary:
Make sure we are comparing the unknown instructions in the alias set and the instruction interested in.
I believe this is clearly a bug (missed opportunity). I can also add some test cases if desired.
Reviewers: hfinkel, davide, dberlin
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34597
llvm-svn: 306241
Ananas is a home-brew operating system, mainly for amd64 machines. After
using GCC for quite some time, it has switched to clang and never looked
back - yet, having to manually patch things is annoying, so it'd be much
nicer if this was in the official tree.
More information:
https://github.com/zhmu/ananas/https://rink.nu/projects/ananas.html
Submitted by: Rink Springer
Differential Revision: https://reviews.llvm.org/D32937
llvm-svn: 306237
Revert "[ORC] Remove redundant semicolons from DEFINE_SIMPLE_CONVERSION_FUNCTIONS uses."
Revert "[ORC] Move ORC IR layer interface from addModuleSet to addModule and fix the module type as std::shared_ptr<Module>."
They broke ExecutionEngine/OrcMCJIT/test-global-ctors.ll on linux.
llvm-svn: 306176
This is useful when an upper limit on the cache size needs to be
controlled independently of the amount of the amount of free space.
One use case is a machine with a large number of cache directories
(e.g. a buildbot slave hosting a large number of independent build
jobs). By imposing an upper size limit on each cache directory,
users can more easily estimate the server's capacity.
Differential Revision: https://reviews.llvm.org/D34547
llvm-svn: 306126
Summary:
The function matches the interface of llvm::to_integer, but as we are
calling out to a C library function, I let it take a Twine argument, so
we can avoid a string copy at least in some cases.
I add a test and replace a couple of existing uses of strtod with this
function.
Reviewers: zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34518
llvm-svn: 306096
move the ObjectCache from the IRCompileLayer to SimpleCompiler.
This is the first in a series of patches aimed at cleaning up and improving the
robustness and performance of the ORC APIs.
llvm-svn: 306058
There doesn't seem to be a compelling reason why this method should be const
other than it was possible with the DIA implementation. The native session
is going to act as a symbol factory and cache. This could be acheived with
mutable (and the existing const_cast), but it seems cleaner to accept that
this method affects the state of the session.
This change eliminates an existing const_cast.
llvm-svn: 306041
The fix in r306003 uncovered a pretty fundamental problem that libc++
implementation of std::result_of does not handle the prototype of
open(2) correctly (presumably because it contains ...). This makes the
whole function unusable in its current form, so I am also reverting the
original commit (r305892), which introduced the function, at least until
I figure out a way to solve the libc++ issue.
llvm-svn: 306005
The default value of the ResultT template argument (which was there only
to avoid spelling out the long std::result_of template multiple times)
was being overriden by function call template argument deduction. This
manifested itself as a compiler error when calling the function as
FILE *X = RetryAfterSignal(nullptr, fopen, ...)
because the function would try to assign the result of fopen to
nullptr_t, but a more insidious side effect was that
RetryAfterSignal(-1, read, ...) would return "int" instead of "ssize_t",
losing precision along the way.
I fix this by having the function take the argument in a way that
prevents argument deduction from kicking in and add a test that makes
sure the return type is correct.
llvm-svn: 306003
Summary:
The main complexity in adding symbol records is that we need to
"relocate" all the type indices. Type indices do not have anything like
relocations, an opaque data structure describing where to find existing
type indices for fixups. The linker just has to "know" where the type
references are in the symbol records. I added an overload of
`discoverTypeIndices` that works on symbol records, and it seems to be
able to link the standard library.
Reviewers: zturner, ruiu
Subscribers: llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D34432
llvm-svn: 305933
Summary:
This function retries an operation if it was interrupted by a signal
(failed with EINTR). It's inspired by the TEMP_FAILURE_RETRY macro in
glibc, but I've turned that into a template function. I've also added a
fail-value argument, to enable the function to be used with e.g.
fopen(3), which is documented to fail for any reason that open(2) can
fail (which includes EINTR).
The main user of this function will be lldb, but there were also a
couple of uses within llvm that I could simplify using this function.
Reviewers: zturner, silvas, joerg
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D33895
llvm-svn: 305892
This is a workaround for large file writes. It has been witnessed that
write(2) failing with EINVAL (22) due to a large value (>2G). Thanks to
James Knight for the help with coming up with a sane test case.
llvm-svn: 305846
This is patch for GSoC project, bash-completion for clang.
To use this on bash, please run `source clang/utils/bash-autocomplete.sh`.
bash-autocomplete.sh is code for bash-completion.
In this patch, Options.td was mainly changed in order to add value class
in Options.inc.
llvm-svn: 305805
With PR33517, it became apparent that symbol table creation can fail
when presented with malformed inputs. This patch makes that sort of
error detectable, so llvm-cov etc. can fail more gracefully.
Specifically, we now check that function records loaded from corrupted coverage
mapping data are rejected, e.g when the recorded function name is garbage.
Testing: check-{llvm,clang,profile}, some unit test updates.
llvm-svn: 305767
With PR33517, it became apparent that symbol table creation can fail
when presented with malformed inputs. This patch makes that sort of
error detectable, so llvm-cov etc. can fail more gracefully.
Specifically, we now check that function names within the symbol table
aren't empty.
Testing: check-{llvm,clang,profile}, some unit test updates.
llvm-svn: 305765
David Blaikie