Replace uses of new *Init with *Init::get. This hides the allocation
implementation so that we can unique Inits in various ways.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136486 91177308-0d34-0410-b5e6-96231b3b80d8
Remove all non-const iterators from Init classes. This is another
step toward constifying Inits and ultimately turning them into
FoldingSetNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136484 91177308-0d34-0410-b5e6-96231b3b80d8
Get rid of all Init members that modify internal state. This is in
preparation for making references to Inits const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136483 91177308-0d34-0410-b5e6-96231b3b80d8
Create a std::string wrapper for use as a DenseMap key. DenseMap is
not safe in generate with strings, so this wrapper indicates that only
strings guaranteed not to have certain values should be used in the
DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136481 91177308-0d34-0410-b5e6-96231b3b80d8
Fill in the missing fixed bits and the register operand bits of the instruction
encoding. Refactor the definition to make the mode explicit, which is
consistent with how loads and stores are normally represented and makes
parsing much easier. Add parsing aliases for pseudo-instruction variants.
Update the disassembler for the new representations. Add tests for parsing and
encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136479 91177308-0d34-0410-b5e6-96231b3b80d8
whatever the size of unsigned is), though this can't actually
occur for any integer value of NUM_NODES.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136460 91177308-0d34-0410-b5e6-96231b3b80d8
screwy things by setting PWD != getcwd(). For example, some developers I know
will use this to control the value in gcc's DW_AT_comp_dir value in debug
output. With this patch, that trick will now work on clang too.
The only other effect of this change is that the static analysis will now
respect $PWD when reporting the directory of the files in its HTML output. I
think that's fine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136459 91177308-0d34-0410-b5e6-96231b3b80d8
working on x86 (at least for trivial testcases); other architectures will
need more work so that they actually emit the appropriate instructions for
orderings stricter than 'monotonic'. (As far as I can tell, the ARM, PPC,
Mips, and Alpha backends need such changes.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136457 91177308-0d34-0410-b5e6-96231b3b80d8
First off, only depend on the actual MC-ized disassemblers in the
targets, not all of the libraries those in turn depend on.
Second off, only depend on those MC-ized disassemblers for targets we're
building.
This should fix builds of fewer than all targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136455 91177308-0d34-0410-b5e6-96231b3b80d8
Also make PALIGNR masks to don't match 256-bits, which isn't supported
It's also a step to solve PR10489
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136448 91177308-0d34-0410-b5e6-96231b3b80d8
Later passes /are/ using this information when running the register
scavenger.
This fixes the second problem in PR10520.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136440 91177308-0d34-0410-b5e6-96231b3b80d8
This hidden llc option runs the machine code verifier after expanding
ARM pseudo-instructions, but before if-conversion.
The machine code verifier is much better at pointing out liveness errors
that can trip up the register scavenger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136439 91177308-0d34-0410-b5e6-96231b3b80d8
specified in the same file that the library itself is created. This is
more idiomatic for CMake builds, and also allows us to correctly specify
dependencies that are missed due to bugs in the GenLibDeps perl script,
or change from compiler to compiler. On Linux, this returns CMake to
a place where it can relably rebuild several targets of LLVM.
I have tried not to change the dependencies from the ones in the current
auto-generated file. The only places I've really diverged are in places
where I was seeing link failures, and added a dependency. The goal of
this patch is not to start changing the dependencies, merely to move
them into the correct location, and an explicit form that we can control
and change when necessary.
This also removes a serialization point in the build because we don't
have to scan all the libraries before we begin building various tools.
We no longer have a step of the build that regenerates a file inside the
source tree. A few other associated cleanups fall out of this.
This isn't really finished yet though. After talking to dgregor he urged
switching to a single CMake macro to construct libraries with both
sources and dependencies in the arguments. Migrating from the two macros
to that style will be a follow-up patch.
Also, llvm-config is still generated with GenLibDeps.pl, which means it
still has slightly buggy dependencies. The internal CMake
'llvm-config-like' macro uses the correct explicitly specified
dependencies however. A future patch will switch llvm-config generation
(when using CMake) to be based on these deps as well.
This may well break Windows. I'm getting a machine set up now to dig
into any failures there. If anyone can chime in with problems they see
or ideas of how to solve them for Windows, much appreciated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136433 91177308-0d34-0410-b5e6-96231b3b80d8
This generates the correct SDNodes for the landingpad instruction. It makes an
assumption that the result of the landingpad instruction has at least two
values. And that the first value is a pointer to the exception object and the
second value is the "selector."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136430 91177308-0d34-0410-b5e6-96231b3b80d8
AddLandingPadInfo takes a landingpad instruction and grabs all of the
information from it that it needs for EH table generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136429 91177308-0d34-0410-b5e6-96231b3b80d8
Add parsing support for BLX (immediate). Since the register operand version is
predicated and the label operand version is not, we have to use some special
handling to get the operand list right for matching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136406 91177308-0d34-0410-b5e6-96231b3b80d8
'atomicrmw' instructions, which allow representing all the current atomic
rmw intrinsics.
The allowed operands for these instructions are heavily restricted at the
moment; we can probably loosen it a bit, but supporting general
first-class types (where it makes sense) might get a bit complicated,
given how SelectionDAG works.
As an initial cut, these operations do not support specifying an alignment,
but it would be possible to add if we think it's useful. Specifying an
alignment lower than the natural alignment would be essentially
impossible to support on anything other than x86, but specifying a greater
alignment would be possible. I can't think of any useful optimizations which
would use that information, but maybe someone else has ideas.
Optimizer/codegen support coming soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136404 91177308-0d34-0410-b5e6-96231b3b80d8
Code like that would only be produced by bugpoint, but we should still
handle it correctly.
When a register is defined by a REG_SEQUENCE of undefs, the register
itself is undef. Previously, we would create a register with uses but no
defs.
Fixes part of PR10520.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136401 91177308-0d34-0410-b5e6-96231b3b80d8
