15 Commits

Author SHA1 Message Date
Benjamin Kramer
d94f77a49e [Target] Untangle disassemblers
Disassemblers cannot depend on main target headers. The same is true for
MCTargetDesc, but there's a lot more cleanup needed for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341822 91177308-0d34-0410-b5e6-96231b3b80d8
2018-09-10 12:53:46 +00:00
Wouter van Oortmerssen
9a75e493e8 [WebAssembly] Made disassembler only use stack instructions.
Summary:
Now uses the StackBased bit from the tablegen defs to identify
stack instructions (and ignore register based or non-wasm instructions).

Also changed how we store operands, since we now have up to 16 of them
per instruction. To not cause static data bloat, these are compressed
into a tiny table.

+ a few other cleanups.

Tested:
- MCTest
- llvm-lit -v `find test -name WebAssembly`

Reviewers: dschuff, jgravelle-google, sunfish, tlively

Subscribers: sbc100, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D51320

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341081 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-30 15:40:53 +00:00
Thomas Lively
06d8a912fa [WebAssembly] v128.const
Summary:
This CL implements v128.const for each vector type. New operand types
are added to ensure the vector contents can be serialized without LEB
encoding. Tests are added for instruction selection, encoding,
assembly and disassembly.

Reviewers: aheejin, dschuff, aardappel

Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D50873

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340336 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-21 21:03:18 +00:00
Sam Clegg
04cf0d7c9c [WebAssembly] Initial Disassembler.
This implements a new table-gen emitter to create tables for
a wasm disassembler, and a dissassembler to use them.

Comes with 2 tests, that tests a few instructions manually. Is also able to
disassemble large .wasm files with objdump reasonably.

Not working so well, to be addressed in followups:
- objdump appears to be passing an incorrect starting point.
- since the disassembler works an instruction at a time, and it is
  disassembling stack instruction, it has no idea of pseudo register assignments.
  These registers are required for the instruction printing code that follows.
  For now, all such registers appear in the output as $0.

Patch by Wouter van Oortmerssen

Differential Revision: https://reviews.llvm.org/D45848

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332052 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-10 22:16:44 +00:00
Adrian Prantl
26b584c691 Remove \brief commands from doxygen comments.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331272 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-01 15:54:18 +00:00
Chandler Carruth
e3e43d9d57 Sort the remaining #include lines in include/... and lib/....
I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304787 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06 11:49:48 +00:00
Dan Gohman
ab20565a82 [WebAssembly] Remove old experimental disassemler code.
Remove support for disassembling an old experimental wasm binary format, which
is no longer in use anywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294809 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-11 00:02:23 +00:00
Dan Gohman
e56a9ab847 [WebAssembly] Add instruction definitions for drop and get/set_global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293922 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-02 19:29:44 +00:00
Dan Gohman
1871c0f455 [WebAssembly] Add an option to make get_local/set_local explicit.
This patch adds a pass, controlled by an option and off by default for
now, for making implicit get_local/set_local explicit. This simplifies
emitting wasm with MC.

Differential Revision: https://reviews.llvm.org/D25836


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285009 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-24 19:49:43 +00:00
Mehdi Amini
ae5f5d3d3c Move the global variables representing each Target behind accessor function
This avoids "static initialization order fiasco"

Differential Revision: https://reviews.llvm.org/D25412

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283702 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-09 23:00:34 +00:00
Dan Gohman
e0c2ec2a7e [WebAssembly] Rename OPERAND_FP32IMM to OPERAND_F32IMM.
WebAssembly documentation consistently says "f32" rather than "fp32" to
describe 32-bit floating-point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283146 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-03 21:31:31 +00:00
Dan Gohman
ab40f7f14f [WebAssembly] Implement support for custom NaN bit patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260968 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-16 15:14:23 +00:00
Benjamin Kramer
c46572c9c0 Update wasm target for r258819.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258827 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-26 18:21:38 +00:00
Dan Gohman
407037aa3d [WebAssembly] Implement unaligned loads and stores.
Differential Revision: http://reviews.llvm.org/D16534


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258779 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-26 03:39:31 +00:00
Dan Gohman
b28bc14f59 [WebAssembly] Implement a prototype instruction encoder and disassembler.
This is using an extremely simple temporary made-up binary format, not the
official binary format (which isn't defined yet).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257440 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-12 03:32:29 +00:00