Patch was reverted because https://bugs.llvm.org/show_bug.cgi?id=44048
The original patch is modified to set the strictfp IR attribute
explicitly in CodeGen instead of as a side effect of IRBuilder.
In the 2nd attempt to reapply there was a windows lit test fail, the
tests were fixed to use wildcard matching.
Differential Revision: https://reviews.llvm.org/D62731
Summary:
Currently these function return the raw content of the appropriate table
header, which means they are relative to the DW_AT_{loc,rng}list_base,
and one has to relocate them in order to do anything.
This changes the functions to perform the relocation themselves, which
seems more clearer, particularly as they are sitting right next to the
find{Rng,Loc}listFromOffset functions, but one *cannot* simply take the
result of these functions and take pass them there.
The only effect of this patch is to change what value is dumped for the
DW_AT_ranges attribute, which I think is for the better, as previously
the values appeared to point into thin air.
(The main reason I am looking at this is because I was trying to
implement equivalent functionality in lldb's DWARFUnit, and was stumped
by this behavior.
Reviewers: dblaikie, JDevlieghere, aprantl
Subscribers: hiraditya, llvm-commits, SouraVX
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71006
This patch removes the magic "main" JITDylib from ExecutionEngine. The main
JITDylib was created automatically at ExecutionSession construction time, and
all subsequently created JITDylibs were added to the main JITDylib's
links-against list by default. This saves a couple of lines of boilerplate for
simple JIT setups, but this isn't worth introducing magical behavior for.
ORCv2 clients should now construct their own main JITDylib using
ExecutionSession::createJITDylib and set up its linkages manually using
JITDylib::setSearchOrder (or related methods in JITDylib).
This patch adds forward iterators mc_difflist_iterator,
mc_subreg_iterator and mc_superreg_iterator, based on the existing
DiffListIterator. Those are used to provide iterator ranges over
sub- and super-register from TRI, which are slightly more convenient
than the existing MCSubRegIterator/MCSuperRegIterator. Unfortunately,
it duplicates a bit of functionality, but the new iterators are a bit
more convenient (and can be used with various existing iterator
utilities) and should probably replace the old iterators in the future.
This patch updates some existing users.
Reviewers: evandro, qcolombet, paquette, MatzeB, arsenm
Reviewed By: qcolombet
Differential Revision: https://reviews.llvm.org/D70565
This patch turns MachineOperandIteratorBase into a regular forward
iterator, which can be used with iterator_range.
It also adds mi_bundle_ops and const_mi_bundle_ops that return iterator
ranges over all operands in a bundle and updates a use of the old
iterator.
Reviewers: evandro, t.p.northover, paquette, MatzeB, arsenm
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D70561
Build ID is a protocol for looking up debug files that's already
supported by various tools including debuggers. For example, when
locating debug files, gdb would check the following directories:
- /usr/lib/debug/.build-id/ab/cdef1234.debug
- /usr/bin/ls.debug
- /usr/bin/.debug/ls.debug
- /usr/lib/debug/usr/bin/ls.debug
llvm-symbolizer currently consults all of these except for build ID
based one. This patch implements support for build ID lookup. The
set of debug directories to search is specified by the new option:
--debug-file-directory, whose name matches the debug-file-directory
variable used by gdb for the same purpose.
Differential Revision: https://reviews.llvm.org/D70759
Summary:
This patch introduces an API to build and modify vector shapes.
The validity of a VFShape can be checked with the
`hasValidParameterList` method, which is also run in an assertion each
time a VFShape is modified.
The field VFISAKind has been moved to VFInfo under the assumption that
different ISAs can map to the same VFShape (as it can be in the case
of vector extensions with the same registers size, for example AVX and
AVX2).
Reviewers: sdesmalen, jdoerfert, simoll, hsaito
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70513
Revise the coverage mapping format to reduce binary size by:
1. Naming function records and marking them `linkonce_odr`, and
2. Compressing filenames.
This shrinks the size of llc's coverage segment by 82% (334MB -> 62MB)
and speeds up end-to-end single-threaded report generation by 10%. For
reference the compressed name data in llc is 81MB (__llvm_prf_names).
Rationale for changes to the format:
- With the current format, most coverage function records are discarded.
E.g., more than 97% of the records in llc are *duplicate* placeholders
for functions visible-but-not-used in TUs. Placeholders *are* used to
show under-covered functions, but duplicate placeholders waste space.
- We reached general consensus about giving (1) a try at the 2017 code
coverage BoF [1]. The thinking was that using `linkonce_odr` to merge
duplicates is simpler than alternatives like teaching build systems
about a coverage-aware database/module/etc on the side.
- Revising the format is expensive due to the backwards compatibility
requirement, so we might as well compress filenames while we're at it.
This shrinks the encoded filenames in llc by 86% (12MB -> 1.6MB).
See CoverageMappingFormat.rst for the details on what exactly has
changed.
Fixes PR34533 [2], hopefully.
[1] http://lists.llvm.org/pipermail/llvm-dev/2017-October/118428.html
[2] https://bugs.llvm.org/show_bug.cgi?id=34533
Differential Revision: https://reviews.llvm.org/D69471
Summary:
This is one more prep step necessary before the code gen pass instrumentation
code could go in.
Reviewers: davidxl
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70988
When basic blocks are killed, either due to being empty or to being an if.then
or if.else block whose complement contains identical instructions, some of the
debug intrinsics in that block are lost. This patch sinks those intrinsics
into the single successor block, setting them Undef if necessary to
prevent debug info from falling out-of-date.
Differential Revision: https://reviews.llvm.org/D70318
The PT_GNU_PROPERTY is generated by a linker to describe the
.note.gnu.property section. The Linux kernel uses this program header to
locate the .note.gnu.property section.
It is described in "The Linux gABI extension"
Include support for llvm-readelf, llvm-readobj and the yaml reader and
writers.
Differential Revision: https://reviews.llvm.org/D70959
Summary:
This is a follow-up to D70769 and D70222, which allows propagation of
current directory down to ExpandResponseFiles for handling of relative paths.
Previously clients had to mutate FS to achieve that, which is not thread-safe
and can even be thread-hostile in the case of real file system.
Reviewers: sammccall
Subscribers: hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D70857
Summary:
Adds intrinsics for the following:
* rbit
* revb
* revh
* revw
Patterns are also defined to map the 'llvm.bswap.*' intrinsic to the SVE
revb instruction.
Reviewers: sdesmalen, huntergr, dancgr, rengolin, efriedma, rovka
Reviewed By: sdesmalen
Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70960
We already have Symbols property to list regular symbols and
it is currently Optional<>. This patch makes DynamicSymbols to be optional
too. With this there is no need to define a dummy symbol anymore to trigger
creation of the .dynsym and it is now possible to define an empty .dynsym using
just the following line:
DynamicSymbols: []
(it is important to have when you do not want to have dynamic symbols,
but want to have a .dynsym)
Now the code is consistent and it helped to fix a bug: previously we
did not report an error when both Content/Size and an empty
Symbols/DynamicSymbols list were specified.
Differential revision: https://reviews.llvm.org/D70956
Constructor invocations such as `APFloat(APFloat::IEEEdouble(), 0.0)`
may seem like they accept a FP (floating point) value, but the overload
they reach is actually the `integerPart` one, not a `float` or `double`
overload (which only exists when `fltSemantics` isn't passed).
This may lead to possible loss of data, by the conversion from `float`
or `double` to `integerPart`.
To prevent future mistakes, a new constructor overload, which accepts
any FP value and marked with `delete`, to prevent its usage.
Fixes PR34095.
Differential Revision: https://reviews.llvm.org/D70425
Summary:
The dump() function already accepts a callback. This makes
getAbsoluteRanges do the same. The existing DWARFUnit overload is
implemented on top of the new function.
This enables usage of the debug_rnglists parser from within lldb (which
has it's own dwarf parser).
Reviewers: dblaikie, JDevlieghere, aprantl
Subscribers: hiraditya, probinson, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70952
https://reviews.llvm.org/D70922
This adds a hook to allow targets to define exactly what extension
operation should be performed for widening constants. This handles cases
like widening i1 true which would end up becoming -1 which affects code
quality during combines.
Additionally, in order to stay consistent with how DAG is promoting
constants, we now signextend for byte sized types and zero extend
otherwise (by default). Targets can of course override this if
necessary.
As it can be seen from accompanying cleanup, it is not unheard of
to write `~Known.Zero` meaning "what maximal value can this KnownBits
produce". But i think `~Known.Zero` isn't *that* self-explanatory,
as compared to a method with a name.
Note that not all `~Known.Zero` places were cleaned up,
only those where this arguably improves things.
This patch adds intrinsics for SVE gather loads from memory addresses generated by a vector base plus immediate index:
* @llvm.aarch64.sve.ld1.gather.imm
This intrinsics maps 1-1 to the corresponding SVE instruction (example for half-words):
* ld1h { z0.d }, p0/z, [z0.d, #16]
Committed on behalf of Andrzej Warzynski (andwar)
Reviewers: sdesmalen, huntergr, kmclaughlin, eli.friedman, rengolin, rovka, dancgr, mgudim, efriedma
Reviewed By: sdesmalen
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70806
The DebugVariable class is a class declared in LiveDebugValues.cpp which
is used to uniquely identify a single variable, using its source
variable, inline location, and fragment info to do so. This patch moves
this class into DebugInfoMetadata.h, making it available in a much
broader scope.
Summary:
This fixes the memory leak in bec37c3fc7
and re-delivers the reverted patch.
In this patch the DDG DAG is sorted topologically to put the
nodes in the graph in the order that would satisfy all
dependencies. This helps transformations that would like to
generate code based on the DDG. Since the DDG is a DAG a
reverse-post-order traversal would give us the topological
ordering. This patch also sorts the basic blocks passed to
the builder based on program order to ensure that the
dependencies are computed in the correct direction.
Authored By: bmahjour
Reviewer: Meinersbur, fhahn, myhsu, xtian, dmgreen, kbarton, jdoerfert
Reviewed By: Meinersbur
Subscribers: ychen, arphaman, simoll, a.elovikov, mgorny, hiraditya, jfb, wuzish, llvm-commits, jsji, Whitney, etiotto, ppc-slack
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70609
This is a follow-up requested in comments for D70826.
It changes the message from
"section X has a sh_offset (Y) + sh_size (Z) that cannot be represented"
to
"section X has a sh_offset (Y) + sh_size (Z) that is greater than the file size (0xABC)"
when section's sh_offset + sh_size overruns a file buffer.
Differential revision: https://reviews.llvm.org/D70893
This was hard-coded to "clang". This change allows it to to be used on
processes other than clang (such as lld).
This gets reported as clang-10 on Linux and clang.exe on Windows so
adapted test to accommodate this.
Differential Revision: https://reviews.llvm.org/D70950
Convert ARMCodeGenPrepare into a generic type promotion pass by:
- Removing the insertion of arm specific intrinsics to handle narrow
types as we weren't using this.
- Removing ARMSubtarget references.
- Now query a generic TLI object to know which types should be
promoted and what they should be promoted to.
- Move all codegen tests into Transforms folder and testing using opt
and not llc, which is how they should have been written in the
first place...
The pass searches up from icmp operands in an attempt to safely
promote types so we can avoid generating unnecessary unsigned extends
during DAG ISel.
Differential Revision: https://reviews.llvm.org/D69556
Summary:
This does exactly what it says on the box. The only small gotcha is the
section index computation for offset_pair entries, which can use either
the base address section, or the section from the offset_pair entry.
This is to support both the cases where the base address is relocated
(points to the base of the CU, typically), and the case where the base
address is a constant (typically zero) and relocations are on the
offsets themselves.
Reviewers: dblaikie, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits, probinson
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70540
This revision is revised to update Go-bindings and Release Notes.
The original commit message follows.
This patch, adds support for DW_AT_alignment[DWARF5] attribute, to be emitted with typdef DIE.
When explicit alignment is specified.
Patch by Awanish Pandey <Awanish.Pandey@amd.com>
Reviewers: aprantl, dblaikie, jini.susan.george, SouraVX, alok,
deadalinx
Differential Revision: https://reviews.llvm.org/D70111
This patch adds support for debug_macinfo.dwo section[pre-standardized]
to llvm and llvm-dwarfdump.
Reviewers: probinson, dblaikie, aprantl, jini.susan.george, alok
Differential Revision: https://reviews.llvm.org/D70705
Tags: #debug-info #llvm
Summary:
In case of a need to distinguish different query sites for gradual commit or
debugging of PGSO. NFC.
Reviewers: davidxl
Subscribers: hiraditya, zzheng, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70510
analyzePhysReg does not really fit into the iterator and moving it
makes it easier to change the base iterator.
Reviewers: evandro, t.p.northover, paquette, MatzeB, arsenm, qcolombet
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D70559
analyzeVirtReg does not really fit into the iterator and moving it
makes it easier to change the base iterator.
Reviewers: evandro, t.p.northover, paquette, MatzeB, arsenm, qcolombet
Reviewed By: qcolombet
Differential Revision: https://reviews.llvm.org/D70558
Summary: b19ec1eb3d has been reverted because of the test failures
with PowerPC targets. This patch addresses the issues from the previous
commit.
Test Plan: ninja check-all. Confirmed that CodeGen/PowerPC/pr36292.ll
and CodeGen/PowerPC/sms-cpy-1.ll pass
Subscribers: llvm-commits
Melanie Blower