The FileCheck utility is enhanced to support a `--ignore-case`
option. This is useful in cases where the output of Unix tools
differs in case (e.g. case not specified by Posix).
Reviewers: Bigcheese, jakehehrlich, rupprecht, espindola, alexshap, jhenderson, MaskRay
Differential Revision: https://reviews.llvm.org/D68146
llvm-svn: 374339
Some clang lit tests use a pipeline of the form
// RUN: %clang [args] -O0 %s | opt [specific optimizations] | FileCheck %s
to make the expected test output depend on as few optimization phases
as possible, for stability. But when you write a RUN line of this
form, you lose the ability to use update_cc_test_checks.py to
automatically generate the expected output, because it only supports
two-stage pipelines consisting of '%clang | FileCheck' (or %clang_cc1).
This change extends the set of supported RUN lines so that pipelines
with an invocation of `opt` in the middle can still be automatically
handled.
To implement it, I've adjusted `get_function_body()` so that it can
cope with an arbitrary sequence of intermediate pipeline commands. But
the code that decides which RUN lines to consider is more
conservative: it only adds clang | opt | FileCheck to the set of
supported lines, because I didn't want to accidentally include some
other kind of line that doesn't output IR at all.
(Also in this commit is the minimal change to make this script work at
all, after r373912 added an extra parameter to `add_ir_checks`.)
Reviewers: MaskRay, xbolva00
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68406
llvm-svn: 374287
Move progress display to separate file. Simplify some code paths.
Decouple from other components via progress callback. Remove unused
`_Display` class.
Reviewed By: serge-sans-paille
Differential Revision: https://reviews.llvm.org/D68525
llvm-svn: 374194
When an instruction has an encoding definition for only a subset of
the available HwModes, ensure we just avoid generating an encoding
rather than crash.
llvm-svn: 374150
David added the JamCRC implementation in r246590. More recently, Eugene
added a CRC-32 implementation in r357901, which falls back to zlib's
crc32 function if present.
These checksums are essentially the same, so having multiple
implementations seems unnecessary. This replaces the CRC-32
implementation with the simpler one from JamCRC, and implements the
JamCRC interface in terms of CRC-32 since this means it can use zlib's
implementation when available, saving a few bytes and potentially making
it faster.
JamCRC took an ArrayRef<char> argument, and CRC-32 took a StringRef.
This patch changes it to ArrayRef<uint8_t> which I think is the best
choice, and simplifies a few of the callers nicely.
Differential revision: https://reviews.llvm.org/D68570
llvm-svn: 374148
Summary:
While working with DagInit's, it's often the case that you expect the
operator to be a reference to a def. This patch adds a wrapper for this
common case to reduce the amount of boilerplate callers need to duplicate
repeatedly.
getOperatorAsDef() returns the record if the DagInit has an operator that is
a DefInit. Otherwise, it prints a fatal error.
There's only a few pre-existing examples in LLVM at the moment and I've
left a few instances of the code this simplifies as they had more specific
error messages than the generic one this produces. I'm going to be using
this a fair bit in my subsequent patches.
Reviewers: bogner, volkan, nhaehnle
Reviewed By: nhaehnle
Subscribers: nhaehnle, hiraditya, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, lenary, s.egerton, pzheng, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68424
llvm-svn: 374101
Sometimes functions with large comment blocks in front of them have their
declarations output on several lines by c-index-test. Hence the one-line
function name/line/mangled pattern will not work to detect them. Break the
pattern up into two patterns and keep state after seeing the name/line
information until we finally see the mangled name.
Differential Revision: https://reviews.llvm.org/D68272
llvm-svn: 374078
Lit has a "quiet" option, -q, which is documented to "suppress no
error output". Previously, LitConfig displayed notes and warnings when
the quiet option was specified. The result was that it was not
possible to get only pertinent file/line information to be used by an
editor to jump to the location where checks were failing without
passing a number of unhelpful locations first. Here, the
implementations of LitConfig.note and LitConfig.warning are modified
to account for the quiet flag and avoid displaying if the flag has
indeed been set.
Patch by Nate Chandler
Reviewed by yln
Differential Revision: https://reviews.llvm.org/D68044
llvm-svn: 374009
When the target option GuaranteedTailCallOpt is specified, calls with
the fastcc calling convention will be transformed into tail calls if
they are in tail position. This diff adds a new calling convention,
tailcc, currently supported only on X86, which behaves the same way as
fastcc, except that the GuaranteedTailCallOpt flag does not need to
enabled in order to enable tail call optimization.
Patch by Dwight Guth <dwight.guth@runtimeverification.com>!
Reviewed By: lebedev.ri, paquette, rnk
Differential Revision: https://reviews.llvm.org/D67855
llvm-svn: 373976
Allows targets to introduce regbankselectable
pseudo-instructions. Currently the closet feature to this is an
intrinsic. However this requires creating a public intrinsic
declaration. This litters the public intrinsic namespace with
operations we don't necessarily want to expose to IR producers, and
would rather leave as private to the backend.
Use a new instruction bit. A previous attempt tried to keep using enum
value ranges, but it turned into a mess.
llvm-svn: 373937
Add a --preserve-names option to tell the script not to replace IR names.
Sometimes tests want those names. For example if a test is looking for a
modification to an existing instruction we'll want to make the names.
Differential Revision: https://reviews.llvm.org/D68081
llvm-svn: 373912
The CMake build uses "x86_64-pc-windows-msvc". The "-msvc" suffix is
important because e.g. clang/test/lit.cfg.py matches against the
suffix "windows-msvc" to compute the presence of the "ms-sdk" and
the absence of the "LP64" feature.
Differential Revision: https://reviews.llvm.org/D68572
llvm-svn: 373899
In the past, lit used threads to run tests in parallel. Today we use
`multiprocessing.Pool`, which uses processes. Let's stay more abstract
and use "worker" everywhere.
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D68475
llvm-svn: 373794
Summary:
This change replaces the print statements with print function calls
and also replaces the '/' operator (which is integer division in Py2,
but becomes floating point division in Py3) with the '//' operator
which has the same semantics in Py2 and Py3.
Reviewers: greened, michaelplatings, gottesmm
Reviewed By: greened
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68138
llvm-svn: 373759
Summary:
This patch introduces -gen-automata, a backend for generating deterministic finite-state automata.
DFAs are already generated by the -gen-dfa-packetizer backend. This backend is more generic and will
hopefully be used to implement the DFA generation (and determinization) for the packetizer in the
future.
This backend allows not only generation of a DFA from an NFA (nondeterministic finite-state
automaton), it also emits sidetables that allow a path through the DFA under a sequence of inputs to
be analyzed, and the equivalent set of all possible NFA transitions extracted.
This allows a user to not just answer "can my problem be solved?" but also "what is the
solution?". Clearly this analysis is more expensive than just playing a DFA forwards so is
opt-in. The DFAPacketizer has this behaviour already but this is a more compact and generic
representation.
Examples are bundled in unittests/TableGen/Automata.td. Some are trivial, but the BinPacking example
is a stripped-down version of the original target problem I set out to solve, where we pack values
(actually immediates) into bins (an immediate pool in a VLIW bundle) subject to a set of esoteric
constraints.
Reviewers: t.p.northover
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67968
llvm-svn: 373718
Move the write-if-changed logic behind a flag and don't pass it
with the MSVC generator. msbuild doesn't have a restat optimization,
so not doing write-if-change there doesn't have a cost, and it
should fix whatever causes PR43385.
llvm-svn: 373664
The reland uses a static library, not an object library.
Doesn't really matter for the gn build, but it's probalby
nice to have the same semantics for the target type.
llvm-svn: 373660
Summary:
This will handle expansion of C++ fragments in the declarative combiner
including custom predicates, and escapes into C++ to aid the migration
effort.
Fixed the -DLLVM_LINK_LLVM_DYLIB=ON using DISABLE_LLVM_LINK_LLVM_DYLIB when
creating the library. Apparently it automatically links to libLLVM.dylib
and we don't want that from tablegen.
Reviewers: bogner, volkan
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68288
> llvm-svn: 373551
llvm-svn: 373651
Summary:
This will handle expansion of C++ fragments in the declarative combiner
including custom predicates, and escapes into C++ to aid the migration
effort.
Reviewers: bogner, volkan
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68288
llvm-svn: 373551
Summary:
This is the first of a series of patches extracted from a much bigger WIP
patch. It merely establishes the tblgen pass and the way empty combiner
helpers are declared and integrated into a combiner info.
The tablegen pass takes a -combiners option to select the combiner helper
that will be generated. This can be given multiple values to generate
multiple combiner helpers at once. Doing so helps to minimize parsing
overhead.
The reason for creating a GlobalISel subdirectory in utils/TableGen is that
there will be quite a lot of non-pass files (~15) by the time the patch
series is done.
Reviewers: volkan
Subscribers: mgorny, hiraditya, simoncook, Petar.Avramovic, s.egerton, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68286
llvm-svn: 373527
