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pointer
We are assuming that the pointer is always valid, might as well take a
reference instead.
Differential Revision: https://reviews.llvm.org/D153711
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Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D130403
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The logic of `g_quiet` was inverted in D26243. This corrects the issue.
Without this, running `log timers enable` produces a high volume of incremental
timer output.
Differential Revision: https://reviews.llvm.org/D117837
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This reverts commits f9aba9a5afe09788eceb9879aa5c3ad345e0f1e9 and
035217ff515b8ecdc871e39fa840f3cba1b9cec7.
As explained in the original commit message, this didn't have the
intended effect of improving the common LLDB use case, but still
provided a marginal improvement for the places where LLDB creates a
scoped time with a string literal.
The reason for the revert is that this change pulls in the os/signpost.h
header in Signposts.h. The former transitively includes loader.h, which
contains a series of macro defines that conflict with MachO.h. There are
ways to work around that, but Adrian and I concluded that none of them
are worth the trade-off in complicating Signposts.h even further.
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One nice feature of the os_signpost API is that format string
substitutions happen in the consumer, not the logging
application. LLVM's current Signpost class doesn't take advantage of
this though and instead always uses a static "Begin/End %s" format
string.
This patch uses variadic macros to allow the API to be used as
intended. Unfortunately, the primary use-case I had in mind (the
LLDB_SCOPED_TIMER() macro) does not get much better from this, because
__PRETTY_FUNCTION__ is *not* a macro, but a static string, so
signposts created by LLDB_SCOPED_TIMER() still use a static "%s"
format string. At least LLDB_SCOPED_TIMERF() works as intended.
This reapplies the previously reverted patch with additional include
order fixes for non-modular builds of LLDB.
Differential Revision: https://reviews.llvm.org/D103575
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This reverts commit 03841edde7eee21d1d450041ab9a113a7e1be869.
Unfortunately this still breaks the LLDB standalone bot.
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One nice feature of the os_signpost API is that format string
substitutions happen in the consumer, not the logging
application. LLVM's current Signpost class doesn't take advantage of
this though and instead always uses a static "Begin/End %s" format
string.
This patch uses variadic macros to allow the API to be used as
intended. Unfortunately, the primary use-case I had in mind (the
LLDB_SCOPED_TIMER() macro) does not get much better from this, because
__PRETTY_FUNCTION__ is *not* a macro, but a static string, so
signposts created by LLDB_SCOPED_TIMER() still use a static "%s"
format string. At least LLDB_SCOPED_TIMERF() works as intended.
This reapplies the previsously reverted patch with additional MachO.h
macro #undefs.
Differential Revision: https://reviews.llvm.org/D103575
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This reverts commit 4fc93a3a1f95ef5a0a57750fc621f2411ea445a8 because it
breaks LLDB builds on certain macOS platform & SDK combinations, e.g.
http://green.lab.llvm.org/green/job/lldb-cmake-standalone/3288/consoleFull#-195476041949ba4694-19c4-4d7e-bec5-911270d8a58c
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One nice feature of the os_signpost API is that format string
substitutions happen in the consumer, not the logging
application. LLVM's current Signpost class doesn't take advantage of
this though and instead always uses a static "Begin/End %s" format
string.
This patch uses variadic macros to allow the API to be used as
intended. Unfortunately, the primary use-case I had in mind (the
LLDB_SCOPED_TIMER() macro) does not get much better from this, because
__PRETTY_FUNCTION__ is *not* a macro, but a static string, so
signposts created by LLDB_SCOPED_TIMER() still use a static "%s"
format string. At least LLDB_SCOPED_TIMERF() works as intended.
This reapplies the previsously reverted patch with support for
platforms where signposts are unavailable.
Differential Revision: https://reviews.llvm.org/D103575
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I forgot to make the LLDB macro conditional on Linux.
This reverts commit 541ccd1c1bb23e1e20a382844b35312c0caffd79.
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One nice feature of the os_signpost API is that format string
substitutions happen in the consumer, not the logging
application. LLVM's current Signpost class doesn't take advantage of
this though and instead always uses a static "Begin/End %s" format
string.
This patch uses variadic macros to allow the API to be used as
intended. Unfortunately, the primary use-case I had in mind (the
LLDB_SCOPED_TIMER() macro) does not get much better from this, because
__PRETTY_FUNCTION__ is *not* a macro, but a static string, so
signposts created by LLDB_SCOPED_TIMER() still use a static "%s"
format string. At least LLDB_SCOPED_TIMERF() works as intended.
Differential Revision: https://reviews.llvm.org/D103575
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The C headers are deprecated so as requested in D102845, this is replacing them
all with their (not deprecated) C++ equivalent.
Reviewed By: shafik
Differential Revision: https://reviews.llvm.org/D103084
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Emit os_signposts when supported from LLDB's timer class. A vast amount
of performance sensitive places in LLDB are already instrumented with
the Timer class.
By emitting signposts we can examine this information in Instruments. I
recommend looking at Daniel's differential for why this is so powerful:
https://reviews.llvm.org/D52954.
Differential revision: https://reviews.llvm.org/D93657
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Summary:
A *.cpp file header in LLDB (and in LLDB) should like this:
```
//===-- TestUtilities.cpp -------------------------------------------------===//
```
However in LLDB most of our source files have arbitrary changes to this format and
these changes are spreading through LLDB as folks usually just use the existing
source files as templates for their new files (most notably the unnecessary
editor language indicator `-*- C++ -*-` is spreading and in every review
someone is pointing out that this is wrong, resulting in people pointing out that this
is done in the same way in other files).
This patch removes most of these inconsistencies including the editor language indicators,
all the different missing/additional '-' characters, files that center the file name, missing
trailing `===//` (mostly caused by clang-format breaking the line).
Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere
Reviewed By: JDevlieghere
Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D73258
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llvm-svn: 362035
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Summary:
The `log timer dump` is showing the time of the function itself minus any function that is called from this one that also happens to be timed. However, this is really not obvious and it also makes it hard to understand the time spent in total and also which children are actually taking the time.
To get a better reading of the timer dump I added the total, children (which I named child) and also the hit count. I used these timers to figure out a performance issue and only after adding this things were more clear to me.
It looks like this:
```
(lldb) log timer dump
35.447713617 sec (total: 35.449s; child: 0.001s; count: 1374) for void SymbolFileDWARF::Index()
29.717921481 sec (total: 29.718s; child: 0.000s; count: 8230500) for const lldb_private::ConstString &lldb_private::Mangled::GetDemangledName(lldb::LanguageType) const
21.049508865 sec (total: 24.683s; child: 3.633s; count: 1399) for void lldb_private::Symtab::InitNameIndexes()
...
```
Reviewers: clayborg, teemperor, labath, espindola, xiaobai
Reviewed By: labath, xiaobai
Subscribers: emaste, mgorny, arichardson, eraman, MaskRay, jdoerfert, labath, davide, teemperor, aprantl, erik.pilkington, jfb, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D61235
llvm-svn: 361987
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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LLVM added wrappers to std::sort (r327219) that randomly shuffle the
container before sorting. The goal is to uncover non-determinism due to
undefined sorting order of objects having the same key.
This can be enabled with -DLLVM_ENABLE_EXPENSIVE_CHECKS=ON.
llvm-svn: 350679
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This patch removes the comments following the header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.
Differential revision: https://reviews.llvm.org/D54385
llvm-svn: 346625
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Summary:
The classes have no dependencies, and they are used both by lldb and
lldb-server, so it makes sense for them to live in the lowest layers.
Reviewers: zturner, jingham
Subscribers: emaste, mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D34746
llvm-svn: 306682
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