5 Commits

Author SHA1 Message Date
Dan Gohman
24efa5d42e [WebAssembly] Convert the remaining unit tests to the new wasm-object-file target.
To facilitate this, add a new hidden command-line option to disable
the explicit-locals pass. That causes llc to emit invalid code that doesn't
have all locals converted to get_local/set_local, however it simplifies
testwriting in many cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296540 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-28 23:37:04 +00:00
Dan Gohman
53ff96ab08 [WebAssembly] Basic support for Wasm object file encoding.
With the "wasm32-unknown-unknown-wasm" triple, this allows writing out
simple wasm object files, and is another step in a larger series toward
migrating from ELF to general wasm object support. Note that this code
and the binary format itself is still experimental.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296190 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-24 23:18:00 +00:00
Dan Gohman
2a88a6dddf [WebAssembly] Eliminate an ad-hoc command-line argument.
Use the target triple to determine whether to run the explicit-locals
pass, rather than using a separate command-line argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288602 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-03 23:00:12 +00:00
Dan Gohman
01b89435ec [WebAssembly] Implement more WebAssembly binary encoding.
This changes locals from being declared by the emitLocal hook in
WebAssemblyTargetStreamer, rather than with an instruction. After exploring
the infastructure in LLVM more, this seems to make more sense since
declaring locals doesn't use an encoded opcode.

This also adds more 0xd opcodes, type encodings, and miscellaneous
binary encoding bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285040 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-24 23:27:49 +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