A register class can appear as a leaf TreePatternNode with and without a
name:
(COPY_TO_REGCLASS GPR:$src, F8RC)
In a named leaf node like GPR:$src, the register class provides type
information for the named variable represented by the node. The TypeSet
for such a node is the set of value types that the register class can
represent.
In an unnamed leaf node like F8RC above, the register class represents
itself as a kind of immediate. Such a node has the type MVT::i32,
we'll never create a virtual register representing it.
This change makes it possible to remove the special handling of
COPY_TO_REGCLASS in CodeGenDAGPatterns.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177825 91177308-0d34-0410-b5e6-96231b3b80d8
To use this in conjunction with exuberant ctags to generate a single
combined tags file, run tblgen first and then
$ ctags --append [...]
Since some identifiers have corresponding definitions in C++ code,
it can be useful (if using vim) to also use cscope, and
:set cscopetagorder=1
so that
:tag X
will preferentially select the tablegen symbol, while
:cscope find g X
will always find the C++ symbol.
Patch by Kevin Schoedel!
(a couple small formatting changes courtesy of clang-format)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177682 91177308-0d34-0410-b5e6-96231b3b80d8
Native Windows Python will do line ending translation by default, which
we don't want in bash scripts. If we're not native Windows Python, then
'b' is ignored.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177602 91177308-0d34-0410-b5e6-96231b3b80d8
of complex instruction operands (e.g. address modes).
Currently, if a Pat pattern creates an instruction that has a complex
operand (i.e. one that consists of multiple sub-operands at the MI
level), this operand must match a ComplexPattern DAG pattern with the
correct number of output operands.
This commit extends TableGen to alternatively allow match a complex
operands against multiple separate operands at the DAG level.
This allows using Pat patterns to match pre-increment nodes like
pre_store (which must have separate operands at the DAG level) onto
an instruction pattern that uses a multi-operand memory operand,
like the following example on PowerPC (will be committed as a
follow-on patch):
def STWU : DForm_1<37, (outs ptr_rc:$ea_res), (ins GPRC:$rS, memri:$dst),
"stwu $rS, $dst", LdStStoreUpd, []>,
RegConstraint<"$dst.reg = $ea_res">, NoEncode<"$ea_res">;
def : Pat<(pre_store GPRC:$rS, ptr_rc:$ptrreg, iaddroff:$ptroff),
(STWU GPRC:$rS, iaddroff:$ptroff, ptr_rc:$ptrreg)>;
Here, the pair of "ptroff" and "ptrreg" operands is matched onto the
complex operand "dst" of class "memri" in the "STWU" instruction.
Approved by Jakob Stoklund Olesen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177428 91177308-0d34-0410-b5e6-96231b3b80d8
Properly handle cases where a group of instructions have different
SchedRW lists with the same itinerary class.
This was supposed to work, but I left in an early break.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177317 91177308-0d34-0410-b5e6-96231b3b80d8
This computes the type of an instruction operand or result based on the
records in the instruction's ins and outs lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177244 91177308-0d34-0410-b5e6-96231b3b80d8
We always supported a mixture of the old itinerary model and new
per-operand model, but it required a level of indirection to map
itinerary classes to SchedRW lists. This was done for ARM A9.
Now we want to define x86 SchedRW lists, with the goal of removing its
itinerary classes, but still support the itineraries in the mean
time. When I original developed the model, Atom did not have
itineraries, so there was no reason to expect this requirement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177226 91177308-0d34-0410-b5e6-96231b3b80d8
Don't require instructions to inherit Sched<...>. Sometimes it is more
convenient to say:
let SchedRW = ... in {
...
}
Which is now possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177199 91177308-0d34-0410-b5e6-96231b3b80d8
This allows abitrary groups of processor resources. Using something in
a subset automatically counts againts the superset. Currently, this
only works if the superset is also a ProcResGroup as opposed to a
SuperUnit.
This allows SandyBridge to be expressed naturally, which will be
checked in shortly.
def SBPort01 : ProcResGroup<[SBPort0, SBPort1]>;
def SBPort15 : ProcResGroup<[SBPort1, SBPort5]>;
def SBPort23 : ProcResGroup<[SBPort2, SBPort3]>;
def SBPort015 : ProcResGroup<[SBPort0, SBPort1, SBPort5]>;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177112 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the way resources are counted. I'm taking some time to cleanup the
way MachineScheduler handles in-order machine resources. Eventually
we'll need more PPC/Atom test cases in tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176390 91177308-0d34-0410-b5e6-96231b3b80d8
These are two related changes (one in llvm, one in clang).
LLVM:
- rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode)
- rename thread_safety => sanitize_thread
- rename no_uninitialized_checks -> sanitize_memory
CLANG:
- add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis))
- add __attribute__((no_sanitize_thread))
- add __attribute__((no_sanitize_memory))
for S in address thread memory
If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not
set llvm attribute sanitize_S
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed bug in tablegen conversion when source pseudo instruction has
a different number of arguments than the destination instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175066 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed decode of existing 3dNow prefetchw instruction
Intel is scheduled to add a compatible prefetchw (same encoding) to future CPUs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174920 91177308-0d34-0410-b5e6-96231b3b80d8
For example, ARM has several instructions with a literal '#0' immediate in the syntax
that's not represented as an actual operand. The asm matcher is expected a token
operand, but the parser will have created an immediate operand. This is currently
handled by dedicated per-instruction C++ munging of the ParsedAsmOperand list, but
will be better handled by this hook.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174487 91177308-0d34-0410-b5e6-96231b3b80d8
If an Apple llvmCore build is done without assertions, and a client uses
the llvmCore headers with assertions enabled, or vice versa, then things will
break because some of the structure sizes in the API are different. Use the
unifdef tool to make the headers unconditionally match the way the llvmCore
libraries were built.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174460 91177308-0d34-0410-b5e6-96231b3b80d8
and enables the instruction printer to print aliased
instructions.
Due to usage of RegisterOperands a change in common
code (utils/TableGen/AsmWriterEmitter.cpp) is required
to get the correct register value if it is a RegisterOperand.
Contributer: Vladimir Medic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174358 91177308-0d34-0410-b5e6-96231b3b80d8
Drive by fix. I noticed some missing logic that might bite future
users. This shouldn't affect the final output on currently modeled
targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174142 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.
This initial commit should have support for:
+ Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
(except the late addition CRC instructions).
+ CodeGen features required for C++03 and C99.
+ Compilation for the "small" memory model: code+static data <
4GB.
+ Absolute and position-independent code.
+ GNU-style (i.e. "__thread") TLS.
+ Debugging information.
The principal omission, currently, is performance tuning.
This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.
Further reviews would be gratefully received.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
By default, stop the universe build if a key component fails. This
avoids useless builds when we know a package is broken anyway.
Provide a --keep-going option to override this behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173723 91177308-0d34-0410-b5e6-96231b3b80d8
For example,
cur) unittests/ADT/Release/ADTTests
new) unittests/ADT/ADTTests
RUNTIME_BUILD_MODE can be substituted to CMAKE_CFG_INTDIR.
With Make and Ninja, the tree is not built with multiple configurations.
Then, including the build type in target directory doesn't make sense.
See also "How can I build multiple modes without switching?"
http://www.cmake.org/Wiki/CMake_FAQ
CMAKE_CFG_INTDIR is set to "."
With multiple-configuration-aware build system, like Visual Studio, each unittest is built on appropriate directory, for example,
unittests/ADT/Release/ADTTests.exe
CMAKE_CFG_INTDIR is set to build system's variable, like "$(Configuration)" or "$(OutDir)".
Thus, "--param build_config" is also deprecated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173616 91177308-0d34-0410-b5e6-96231b3b80d8
In the future, AttributeWithIndex won't be used anymore. Besides, it exposes the
internals of the AttributeSet to outside users, which isn't goodness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173606 91177308-0d34-0410-b5e6-96231b3b80d8
SSPStrong applies a heuristic to insert stack protectors in these situations:
* A Protector is required for functions which contain an array, regardless of
type or length.
* A Protector is required for functions which contain a structure/union which
contains an array, regardless of type or length. Note, there is no limit to
the depth of nesting.
* A protector is required when the address of a local variable (i.e., stack
based variable) is exposed. (E.g., such as through a local whose address is
taken as part of the RHS of an assignment or a local whose address is taken as
part of a function argument.)
This patch implements the SSPString attribute to be equivalent to
SSPRequired. This will change in a subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
Use --enable-werror during configure time rather than
--with-extra-options. This is cleaner and easier to read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172581 91177308-0d34-0410-b5e6-96231b3b80d8
// FIXME: Constraints are hard coded to 'm', but we need an 'r'
// constraint for addressof. This needs to be cleaned up!
Test cases are already in place. Specifically,
clang/test/CodeGen/ms-inline-asm.c t15(), t16(), and t24().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172569 91177308-0d34-0410-b5e6-96231b3b80d8
I give up trying to get all of the settings into COMMON_MAKEFLAGS, so just
do the easy thing and repeat the ones with interesting quoting issues
in each make command.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172296 91177308-0d34-0410-b5e6-96231b3b80d8
This change is basically just copying changes that we've used for Apple's
clang builds to the script used for building llvmCore. Besides cleaning it
up to use xcrun to locate the proper versions of tools, especially for cross
compiling, it fixes the build to work with newer versions of clang that
honor SDKROOT settings in the environment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172138 91177308-0d34-0410-b5e6-96231b3b80d8
def foo : bar;
~~~
This allows us to produce more precise diagnostics about a certain
superclass, and even provide fixits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172085 91177308-0d34-0410-b5e6-96231b3b80d8
The purpose of this patch is to allow PredicateMethods to be set to something
like "isUImm<8>", calling a C++ template method to reduce code duplication. For
this to work, the PredicateMethod must be mangled into a valid C++ identifier
for insertion into an enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172073 91177308-0d34-0410-b5e6-96231b3b80d8
When processing possible aliases, TableGen assumes that if an operand *can* be
an immediate, then it always *will* be. This is incorrect for the AArch64
backend. This patch inserts a check in the generated code to make sure isImm is
true first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171972 91177308-0d34-0410-b5e6-96231b3b80d8
This was an experimental option, but needs to be defined
per-target. e.g. PPC A2 needs to aggressively hide latency.
I converted some in-order scheduling tests to A2. Hal is working on
more test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171946 91177308-0d34-0410-b5e6-96231b3b80d8
make into the last commit.
Also, update the test-generation script to generate an exhaustive test for
align_to_end as well, and include the generated test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171811 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for specifying the alignment to use.
* Add the concept of native endianness. Used for unaligned native types.
The native alignment and read/write simplification is based on a patch by Richard Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171406 91177308-0d34-0410-b5e6-96231b3b80d8
Aside from moving the actual files, this patch only updates the build
system and the source file comments under lib/... that are relevant.
I'll be updating other docs and other files in smaller subsequnet
commits.
While I've tried to test this, but it is entirely possible that there
will still be some build system fallout.
Also, note that I've not changed the library name itself: libLLVMCore.a
is still the library name. I'd be interested in others' opinions about
whether we should rename this as well (I think we should, just not sure
what it might break)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171359 91177308-0d34-0410-b5e6-96231b3b80d8
the script generating it. The test should never be modified manually. If anyone
needs to change it, please change the script and re-run it.
The script is placed into utils/testgen - I couldn't think of a better place,
and after some discussion on IRC this looked like a logical location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170720 91177308-0d34-0410-b5e6-96231b3b80d8
FYI, llvm and clang can be built deterministically between stage 2 and stage3, among iterative clean rebuilds, with GNU ar;
configure --disable-timestamps
make AR.Flags=crsD RANLIB=echo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170682 91177308-0d34-0410-b5e6-96231b3b80d8
MC disassembler clients (LLDB) are interested in querying if an
instruction may affect control flow other than by virtue of being
an explicit branch instruction. For example, instructions which
write directly to the PC on some architectures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170610 91177308-0d34-0410-b5e6-96231b3b80d8
beyond array bounds.
No test case since I cannot reproduce an ICE with this bug. According
to Carlos -- the bug reporter -- a segfault occurs only when LLVM is
compiled with a specific version of GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169783 91177308-0d34-0410-b5e6-96231b3b80d8
- Use SOURCES instead of Source. See Makefile.rules and MakefileGuide.html.
- Don't assume the current directory. $(wildcard *.cc) doesn't match anything on corresponding build directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169568 91177308-0d34-0410-b5e6-96231b3b80d8
1) don't delete gtest-all.cc (which is used to gather all gtest source
files in a single file)
2) make including LLVMSupport headers optional (on by default).
Sanitizer tools may want to use their own versions of googletest
compiled with specific flags, instead of the common googletest
library used for all other LLVM/Clang unittests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169559 91177308-0d34-0410-b5e6-96231b3b80d8
RUN: a
RUN: b || true
as "a && (b || true)" in Tcl mode, and as "(a && b) || true" in sh mode.
Everyone seems to (quite reasonably) write tests assuming the Tcl behavior,
so use that in sh mode too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169441 91177308-0d34-0410-b5e6-96231b3b80d8
This is much simpler to reason about, more efficient, and
fixes some corner cases involving implicit super-register defs.
Fixed rdar://12797931.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169425 91177308-0d34-0410-b5e6-96231b3b80d8
At build-time register pressure was always computed in terms of
register units. But the compile-time API was expressed in terms of
register classes because it was intended for virtual registers (and
physical register units weren't yet used anywhere in codegen).
Now that the codegen uses physreg units consistently, prepare for
tracking register pressure also in terms of live units, not live
registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169360 91177308-0d34-0410-b5e6-96231b3b80d8
I've tried to find main moudle headers where possible, but the TableGen
stuff may warrant someone else looking at it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169251 91177308-0d34-0410-b5e6-96231b3b80d8
1) Teach it to handle files with #include on the first line -- these do
actually exist in LLVM.
2) Support llvm-c and clang-c include projects.
3) Nuke some stail imports.
4) Switch to using os.path to split the file extension off.
5) Remove debugging leftovers.
6) Add docstring (a really puny one) for the sort function.
I'm continuing te avoid stripping the whitespace on the RHS to preserve
whatever newline characters happen to be in the original file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169222 91177308-0d34-0410-b5e6-96231b3b80d8
standards.
I am a terrible Python programmer. Patches more the welcome. Please tell
me how this should look if it should look differently. It's just a tiny
little script so it didn't make sense to go through pre-commit review,
especially as someone who actually knows python may want to just rip it
apart and do it The Right Way.
I will be preparing a commit shortly that uses this script to
canonicalize *all* of the #include lines in LLVM. Really, all of them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169125 91177308-0d34-0410-b5e6-96231b3b80d8
; CHECK: [[VAR:[a-z]]]
The problem was that to find the end of the regex var definition, it was
simplistically looking for the next ]] and finding the incorrect one. A
better approach is to count nesting of brackets (taking escaping into
account). This way the brackets that are part of the regex can be discovered
and skipped properly, and the ]] ending is detected in the right place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169109 91177308-0d34-0410-b5e6-96231b3b80d8
When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168354 91177308-0d34-0410-b5e6-96231b3b80d8
This patch replaces the hard coded GPR pair [R0, R1] of
Intrinsic:arm_ldrexd and [R2, R3] of Intrinsic:arm_strexd with
even/odd GPRPair reg class.
Similar to the lowering of atomic_64 operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168207 91177308-0d34-0410-b5e6-96231b3b80d8
- Add RTM code generation support throught 3 X86 intrinsics:
xbegin()/xend() to start/end a transaction region, and xabort() to abort a
tranaction region
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167573 91177308-0d34-0410-b5e6-96231b3b80d8
"../llvm-git/utils/TableGen/CodeGenSchedule.cpp", line 1594.12: 1540-0218 (S) The call does not match any parameter list for "operator+".
"../llvm-git/include/llvm/ADT/STLExtras.h", line 130.1: 1540-1283 (I) "template <class _Iterator, class Func> llvm::operator+(mapped_iterator<_Iterator,Func>::difference_type, const mapped_iterator<_Iterator,Func> &)" is not a viable candidate.
Patch by Kai.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167311 91177308-0d34-0410-b5e6-96231b3b80d8
Explicitly allow composition of null sub-register indices, and handle
that common case in an inlinable stub.
Use a compressed table implementation instead of the previous nested
switches which generated pretty bad code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167190 91177308-0d34-0410-b5e6-96231b3b80d8
Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166712 91177308-0d34-0410-b5e6-96231b3b80d8
Relationship maps are represented as InstrMapping records which are parsed by
TableGen and the information is used to construct mapping tables to represent
appropriate relations between instructions. These tables are emitted into
XXXGenInstrInfo.inc file along with the functions to query them.
Patch by Jyotsna Verma <jverma@codeaurora.org>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166685 91177308-0d34-0410-b5e6-96231b3b80d8
- The XTARGET feature (inherited from old DG tests) was just confusing (and
barely ever used). The same effect can now be achieved with a combination of
the more useful REQUIRES and XFAIL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166305 91177308-0d34-0410-b5e6-96231b3b80d8
Convert the internal representation of the Attributes class into a pointer to an
opaque object that's uniqued by and stored in the LLVMContext object. The
Attributes class then becomes a thin wrapper around this opaque
object. Eventually, the internal representation will be expanded to include
attributes that represent code generation options, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165917 91177308-0d34-0410-b5e6-96231b3b80d8
isa<> et al. automatically infer when the cast is an upcast (including a
self-cast), so these are no longer necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165767 91177308-0d34-0410-b5e6-96231b3b80d8
Some of these dyn_cast<>'s would be better phrased as isa<> or cast<>.
That will happen in a future patch.
There are also two dyn_cast_or_null<>'s slipped in instead of
dyn_cast<>'s, since they were causing crashes with just dyn_cast<>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165646 91177308-0d34-0410-b5e6-96231b3b80d8
This is a mechanical change of dynamic_cast<> to dyn_cast<>. A number of
these uses are actually more like isa<> or cast<>, and will be changed
to the semanticaly appropriate one in a future patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165291 91177308-0d34-0410-b5e6-96231b3b80d8
This allows the processor-specific machine model to override selected
base opcodes without any fanciness.
e.g. InstRW<[CoreXWriteVANDP], (instregex "VANDP")>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165180 91177308-0d34-0410-b5e6-96231b3b80d8
A processor can now arbitrarily alias one SchedWrite onto
another. Only the SchedAlias definition need be within the processor
model. The aliased SchedWrite may be a SchedVariant, WriteSequence, or
transitively refer to another alias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165179 91177308-0d34-0410-b5e6-96231b3b80d8
map constraints and MCInst operands to inline asm operands. This replaces the
getMCInstOperandNum() function.
The logic to determine the constraints are not in place, so we still default to
a register constraint (i.e., "r"). Also, we no longer build the MCInst but
rather return just the opcode to get the MCInstrDesc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164979 91177308-0d34-0410-b5e6-96231b3b80d8
This is a generally useful utility; there's no reason to have it hidden
in CodeGenDAGPatterns.cpp.
Also, rename it to fit the other comparators in Record.h
Review by Jakob.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164189 91177308-0d34-0410-b5e6-96231b3b80d8
Now where we used to call ReInitMCSubtargetInfo, we actually recompute
the same information as InitMCSubtargetInfo instead of only setting
the feature bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164105 91177308-0d34-0410-b5e6-96231b3b80d8
Map the CodeGenSchedule object model onto data tables. The structure
of the data tables is defined in MC, so for convenience we include
MCSchedule.h. The alternative is maintaining a redundant copy of the
table structure definitions. Mapping the object model onto data tables
is sufficiently complicated that it should not be interleaved with
emitting source code. This avoids major problem with the backend for
itinerary generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164059 91177308-0d34-0410-b5e6-96231b3b80d8
Keep GCC's warnings happy. It can't reason out that the state machine won't
ever hit the potentially uninitialized use in OPC_FilterValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164041 91177308-0d34-0410-b5e6-96231b3b80d8
48-bit if necessary, in order to reduce the generated code size.
We have 900 cases not covered by OpcodeInfo in ATT AsmWriter and more in Intel
AsmWriter and ARM AsmWriter.
This patch reduced the clang Release build size by 50k, running on a Mac Pro.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163814 91177308-0d34-0410-b5e6-96231b3b80d8
* wrap code blocks in \code ... \endcode;
* refer to parameter names in paragraphs correctly (\arg is not what most
people want -- it starts a new paragraph).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163790 91177308-0d34-0410-b5e6-96231b3b80d8
Sub-register lane masks are bitmasks that can be used to determine if
two sub-registers of a virtual register will overlap. For example, ARM's
ssub0 and ssub1 sub-register indices don't overlap each other, but both
overlap dsub0 and qsub0.
The lane masks will be accurate on most targets, but on targets that use
sub-register indexes in an irregular way, the masks may conservatively
report that two sub-register indices overlap when the eventually
allocated physregs don't.
Irregular register banks also mean that the bits in a lane mask can't be
mapped onto register units, but the concept is similar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163630 91177308-0d34-0410-b5e6-96231b3b80d8
Preserve the Composites map in the CodeGenSubRegIndex class so it can be
used to determine which sub-register indices can actually be composed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163629 91177308-0d34-0410-b5e6-96231b3b80d8
Apparently, NumSubRegIndices was completely unused before. Adjust it by
one to include the null subreg index, just like getNumRegs() includes
the null register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163628 91177308-0d34-0410-b5e6-96231b3b80d8
- This patch is inspired by the failure of the following code snippet
which is used to convert enumerable values into encoding bits to
improve the readability of td files.
class S<int s> {
bits<2> V = !if(!eq(s, 8), {0, 0},
!if(!eq(s, 16), {0, 1},
!if(!eq(s, 32), {1, 0},
!if(!eq(s, 64), {1, 1}, {?, ?}))));
}
Later, PR8330 is found to report not exactly the same bug relevant
issue to bit/bits values.
- Instead of resolving bit/bits values separately through
resolveBitReference(), this patch adds getBit() for all Inits and
resolves bit value by resolving plus getting the specified bit. This
unifies the resolving of bit with other values and removes redundant
logic for resolving bit only. In addition,
BitsInit::resolveReferences() is optimized to take advantage of this
origanization by resolving VarBitInit's variable reference first and
then getting bits from it.
- The type interference in '!if' operator is revised to support possible
combinations of int and bits/bit in MHS and RHS.
- As there may be illegal assignments from integer value to bit, says
assign 2 to a bit, but we only check this during instantiation in some
cases, e.g.
bit V = !if(!eq(x, 17), 0, 2);
Verbose diagnostic message is generated when invalid value is
resolveed to help locating the error.
- PR8330 is fixed as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163360 91177308-0d34-0410-b5e6-96231b3b80d8
This Operand type takes a default argument, and is initialized to
this value if it does not appear in a patter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163315 91177308-0d34-0410-b5e6-96231b3b80d8
implementation does not co-exist well with how the sideeffect and alignstack
attributes are handled. The reverts r161641.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163174 91177308-0d34-0410-b5e6-96231b3b80d8
This doesn't seem ideal, perhaps we could just keep the llvm_site_cfg and have
other config (clang and clang-tools-extra) derive their site_cfg from that.
Suggestions/complaints/ideas welcome.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163171 91177308-0d34-0410-b5e6-96231b3b80d8
the NumMCOperands argument to the GetMCInstOperandNum() function that is set
to the number of MCOperands this asm operand mapped to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163124 91177308-0d34-0410-b5e6-96231b3b80d8
MatchInstructionImpl() function.
These values are used by the ConvertToMCInst() function to index into the
ConversionTable. The values are also needed to call the GetMCInstOperandNum()
function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163101 91177308-0d34-0410-b5e6-96231b3b80d8
AsmMatcherEmitter. This function maps inline assembly operands to MCInst
operands.
For example, '__asm mov j, eax' is represented by the follow MCInst:
<MCInst 1460 <MCOperand Reg:0> <MCOperand Imm:1> <MCOperand Reg:0>
<MCOperand Expr:(j)> <MCOperand Reg:0> <MCOperand Reg:43>>
The first 5 MCInst operands are a result of j matching as a memory operand
consisting of a BaseReg (Reg:0), MemScale (Imm:1), MemIndexReg(Reg:0),
Expr (Expr:(j), and a MemSegReg (Reg:0). The 6th MCInst operand represents
the eax register (Reg:43).
This translation is necessary to determine the Input and Output Exprs. If a
single asm operand maps to multiple MCInst operands, the index of the first
MCInst operand is returned. Ideally, it would return the operand we really
care out (i.e., the Expr:(j) in this case), but I haven't found an easy way
of doing this yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162920 91177308-0d34-0410-b5e6-96231b3b80d8
Adding arbitrary records to ARM.td would break
basic-arm-instructions.s because selection of nop vs mov r0,r0 was
ambiguous (this will be tested by a subsequent addition to ARM.td).
An imperfect but sensible fix is to give precedence to match rules
that have more constraints.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162824 91177308-0d34-0410-b5e6-96231b3b80d8
Both single-instruction and multi-instruction patterns can be checked
for missing mayLoad / mayStore, and hasSideEffects flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162734 91177308-0d34-0410-b5e6-96231b3b80d8
Previously, instructions without a primary patterns wouldn't get their
properties inferred. Now, we use all single-instruction patterns for
inference, including 'def : Pat<>' instances.
This causes a lot of instruction flags to change.
- Many instructions no longer have the UnmodeledSideEffects flag because
their flags are now inferred from a pattern.
- Instructions with intrinsics will get a mayStore flag if they already
have UnmodeledSideEffects and a mayLoad flag if they already have
mayStore. This is because intrinsics properties are linear.
- Instructions with atomic_load patterns get a mayStore flag because
atomic loads can't be reordered. The correct workaround is to create
pseudo-instructions instead of using normal loads. PR13693.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162614 91177308-0d34-0410-b5e6-96231b3b80d8
Instructions are now only marked as variadic if they use variable_ops in
their ins list.
A variadic SDNode is typically used for call nodes that have the call
arguments as operands.
A variadic MachineInstr can actually encode a variable number of
operands, for example ARM's stm/ldm instructions. A call instruction
does not have to be variadic. The call argument registers are added as
implicit operands.
This change remove the MCID::Variadic flags from most call and return
instructions, allowing us to better verify their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162599 91177308-0d34-0410-b5e6-96231b3b80d8
It is now allowed to explicitly set hasSideEffects, mayStore, and
mayLoad on instructions with patterns.
Verify that the patterns are consistent with the explicit flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162569 91177308-0d34-0410-b5e6-96231b3b80d8
Emit TableGen errors if guessInstructionProperties is 0 and
instruction properties can't be inferred from patterns.
Allow explicit instruction properties even when they can be inferred.
This patch doesn't change the TableGen output. Redundant properties
are not yet verified because the tree has errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162516 91177308-0d34-0410-b5e6-96231b3b80d8
Keep track of the set/unset state of these bits along with their
true/false values, but treat '?' as '0' for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162461 91177308-0d34-0410-b5e6-96231b3b80d8
Currently, TableGen just guesses instruction properties when it can't
infer them form patterns.
This adds a guessInstructionProperties flag to the instruction set
definition that will be used to disable guessing. The flag is intended
as a migration aid. It will be removed again when no more targets need
their properties guessed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162460 91177308-0d34-0410-b5e6-96231b3b80d8
When reporting an error for a defm, we would previously only report the
location of the outer defm, which is not always where the error is.
Now we also print the location of the expanded multiclass defs:
lib/Target/X86/X86InstrSSE.td:2902:12: error: foo
defm ADD : basic_sse12_fp_binop_s<0x58, "add", fadd, SSE_ALU_ITINS_S>,
^
lib/Target/X86/X86InstrSSE.td:2801:11: note: instantiated from multiclass
defm PD : sse12_fp_packed<opc, !strconcat(OpcodeStr, "pd"), OpNode, VR128,
^
lib/Target/X86/X86InstrSSE.td:194:5: note: instantiated from multiclass
def rm : PI<opc, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162409 91177308-0d34-0410-b5e6-96231b3b80d8
No change in interface or functionality. Purely under-the-hood
details of the generated function that change.
The X86 assembly parser is reduced in size by over 15% and ARM by
over 10%.
No performance change by my measurements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162337 91177308-0d34-0410-b5e6-96231b3b80d8
Select instructions pick one of two virtual registers based on a
condition, like x86 cmov. On targets like ARM that support predication,
selects can sometimes be eliminated by predicating the instruction
defining one of the operands.
Teach PeepholeOptimizer to recognize select instructions, and ask the
target to optimize them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162059 91177308-0d34-0410-b5e6-96231b3b80d8
This can be used to tell TableGen to use a specific SubRegIndex instead
of synthesizing one when discovering all sub-registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161982 91177308-0d34-0410-b5e6-96231b3b80d8
TableGen sometimes synthesizes missing sub-register indexes. Emit these
indexes as enumerators in the target namespace along with the
user-defined ones.
Also take this opportunity to stop creating new Record objects for
synthetic indexes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161964 91177308-0d34-0410-b5e6-96231b3b80d8
Refactor the TableGen'erated fixed length disassemblmer to use a
table-driven state machine rather than a massive set of nested
switch() statements.
As a result, the ARM Disassembler (ARMDisassembler.cpp) builds much more
quickly and generates a smaller end result. For a Release+Asserts build on
a 16GB 3.4GHz i7 iMac w/ SSD:
Time to compile at -O2 (averaged w/ hot caches):
Previous: 35.5s
New: 8.9s
TEXT size:
Previous: 447,251
New: 297,661
Builds in 25% of the time previously required and generates code 66% of
the size.
Execution time of the disassembler is only slightly slower (7% disassembling
10 million ARM instructions, 19.6s vs 21.0s). The new implementation has
not yet been tuned, however, so the performance should almost certainly
be recoverable should it become a concern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161888 91177308-0d34-0410-b5e6-96231b3b80d8
We've switched to a 3-component version numbering scheme for Apple releases,
and with this scheme, the final number is the one most relevant for setting
LLVM_MINOR_VERSION. <rdar://problem/12071459>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161645 91177308-0d34-0410-b5e6-96231b3b80d8
This new attribute is intended to be used by the backend to determine how
the inline asm string should be parsed/printed. This patch adds the
ia_nsdialect attribute and also adds a test case to ensure the IR is
correctly parsed, but there is no functional change at this time.
The standard dialect is assumed to be AT&T. Therefore, this attribute
should only be added to MS-style inline assembly statements, which use
the Intel dialect. If we ever support more dialects we'll need to
add additional state to the attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161641 91177308-0d34-0410-b5e6-96231b3b80d8
This replaces an existing subtarget hook on ARM and allows standard
CodeGen passes to potentially use the property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161471 91177308-0d34-0410-b5e6-96231b3b80d8
yaml2obj takes a textual description of an object file in YAML format
and outputs the binary equivalent. This greatly simplifies writing
tests that take binary object files as input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161205 91177308-0d34-0410-b5e6-96231b3b80d8
These tables were indexed by [register][subreg index] which made them,
very large and sparse.
Replace them with lists of sub-register indexes that match the existing
lists of sub-registers. MCRI::getSubReg() becomes a very short linear
search, like getSubRegIndex() already was.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160843 91177308-0d34-0410-b5e6-96231b3b80d8
Now that the weird X86 sub_ss and sub_sd sub-register indexes are gone,
there is no longer a need for the CompositeIndices construct in .td
files. Sub-register index composition can be specified on the
SubRegIndex itself using the ComposedOf field.
Also enforce unique names for sub-registers in TableGen. The same
sub-register cannot be available with multiple sub-register indexes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160842 91177308-0d34-0410-b5e6-96231b3b80d8
A standalone pattern defined in a multiclass expansion should handle
null_frag references just like patterns on instructions. Follow-up to
r160333.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160384 91177308-0d34-0410-b5e6-96231b3b80d8
Define a 'null_frag' SDPatternOperator node, which if referenced in an
instruction Pattern, results in the pattern being collapsed to be as-if
'[]' had been specified instead. This allows supporting a multiclass
definition where some instaniations have ISel patterns associated and
others do not.
For example,
multiclass myMulti<RegisterClass rc, SDPatternOperator OpNode = null_frag> {
def _x : myI<(outs rc:), (ins rc:), []>;
def _r : myI<(outs rc:), (ins rc:), [(set rc:, (OpNode rc:))]>;
}
defm foo : myMulti<GRa, not>;
defm bar : myMulti<GRb>;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160333 91177308-0d34-0410-b5e6-96231b3b80d8
Make sure the tblgen'erated asm matcher correctly returns numoperands+1
as the ErrorInfo when the problem was that there weren't enough operands
specified.
rdar://9142751
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160144 91177308-0d34-0410-b5e6-96231b3b80d8
subtarget CPU descriptions and support new features of
MachineScheduler.
MachineModel has three categories of data:
1) Basic properties for coarse grained instruction cost model.
2) Scheduler Read/Write resources for simple per-opcode and operand cost model (TBD).
3) Instruction itineraties for detailed per-cycle reservation tables.
These will all live side-by-side. Any subtarget can use any
combination of them. Instruction itineraries will not change in the
near term. In the long run, I expect them to only be relevant for
in-order VLIW machines that have complex contraints and require a
precise scheduling/bundling model. Once itineraries are only actively
used by VLIW-ish targets, they could be replaced by something more
appropriate for those targets.
This tablegen backend rewrite sets things up for introducing
MachineModel type #2: per opcode/operand cost model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159891 91177308-0d34-0410-b5e6-96231b3b80d8
'|&' bash syntax. We have lots of users with a bash on their system
which doesn't support this syntax, and as bash is still significantly
faster, we should support them.
The test suite has already been updated to cope with this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159580 91177308-0d34-0410-b5e6-96231b3b80d8
This is directly cloned from the logic in the TCL test bits of lit.
Hopefully will fix most of the windows build bot fallout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159528 91177308-0d34-0410-b5e6-96231b3b80d8
The TargetInstrInfo::getNumMicroOps API does not change, but soon it
will be used by MachineScheduler. Now each subtarget can specify the
number of micro-ops per itinerary class. For ARM, this is currently
always dynamic (-1), because it is used for load/store multiple which
depends on the number of register operands.
Zero is now a valid number of micro-ops. This can be used for
nop pseudo-instructions or instructions that the hardware can squash
during dispatch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159406 91177308-0d34-0410-b5e6-96231b3b80d8
When generating selection tables for Pat instances, TableGen relied on
an output Instruction's Pattern field being set to infer whether a
chain should be added.
This patch adds additional logic to check various flag fields so that
correct code can be generated even if Pattern is unset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159217 91177308-0d34-0410-b5e6-96231b3b80d8
"Invalid operand" may be a completely correct diagnostic, but it's often
insufficiently specific to really help identify and fix the problem in
assembly source. Allow a target to specify a more-specific diagnostic kind
for each AsmOperandClass derived definition and use that to provide
more detailed diagnostics when an operant of that class resulted in a
match failure.
rdar://8987109
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159050 91177308-0d34-0410-b5e6-96231b3b80d8
Original commit message:
Allow up to 64 functional units per processor itinerary.
This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159027 91177308-0d34-0410-b5e6-96231b3b80d8
This makes it explicit when ScoreboardHazardRecognizer will be used.
"GenericItineraries" would only make sense if it contained real
itinerary values and still required ScoreboardHazardRecognizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158963 91177308-0d34-0410-b5e6-96231b3b80d8
This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158679 91177308-0d34-0410-b5e6-96231b3b80d8
When returning a 'cannot match due to missing CPU features' error code,
if there are multiple potential matches with different feature sets,
return the smallest set of missing features from the alternatives as
that's most likely to be the one that's desired.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158673 91177308-0d34-0410-b5e6-96231b3b80d8
