15 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
a5e77a0215 [WebAssembly] Remove the output operand from stores.
Per spec changes, store instructions in WebAssembly no longer have a return
value. Update the instruction descriptions.

Differential Revision: https://reviews.llvm.org/D25122


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283501 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-06 22:08:28 +00:00
Dan Gohman
1a513a6964 [WebAssembly] Optimize away return instructions using fallthroughs.
This saves a small amount of code size, and is a first small step toward
passing values on the stack across block boundaries.

Differential Review: http://reviews.llvm.org/D20450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270294 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-21 00:21:56 +00:00
Dan Gohman
51510adcfa [WebAssembly] Rename $discard to $drop in the assembly output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269862 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-17 23:19:03 +00:00
Dan Gohman
548cf051f4 [WebAssembly] Fix a test to work even when the integrated assembler is enabled.
Add -no-integrated-as to this test, since it's testing inline asm strings
that aren't actually valid assembly syntax.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257519 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-12 21:01:30 +00:00
Dan Gohman
3d5f22734f [WebAssembly] Add -m:e to the target triple.
This enables ELF-style name mangling, which primarily means using ".L" for
private symbols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257020 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-07 03:19:23 +00:00
Dan Gohman
c1fb525cc5 [WebAssembly] Use the new offset syntax for memory operands in inline asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255788 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-16 18:14:49 +00:00
Dan Gohman
3de3334800 [WebAssembly] Support more kinds of inline asm operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255782 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-16 17:15:17 +00:00
Dan Gohman
0abf891ab8 [WebAssembly] Tighten up several CHECK tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255255 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-10 14:52:34 +00:00
Dan Gohman
b975ecb43f [WebAssembly] Support inline asm constraints of type i16 and similar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254861 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-05 20:03:44 +00:00
Dan Gohman
d5a489c812 [WebAssembly] Fix inline asm support for i64 operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254106 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-25 22:28:50 +00:00
Dan Gohman
19dfe052ee [WebAssembly] Emit .param, .result, and .local through MC.
This eliminates one of the main remaining uses of EmitRawText.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253878 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-23 16:50:18 +00:00
Dan Gohman
3a7d5cfa3b [WebAssembly] Make bogus inline asm strings in tests be comments.
These tests aren't testing that the result is valid syntax; they're testing
that the compiler emits the inline asm operands correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253469 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-18 16:28:58 +00:00
Dan Gohman
94401ce9c8 [WebAssembly] Enable register coloring and register stackifying.
This also takes the push/pop syntax another step forward, introducing stack
slot numbers to make it easier to see how expressions are connected. For
example, the value pushed in $push7 is popped in $pop7.

And, this begins an experiment with making get_local and set_local implicit
when an operation directly uses or defines a register. This greatly reduces
clutter. If this experiment succeeds, it may make sense to do this for
const instructions as well.

And, this introduces more special code for ARGUMENTS; hopefully this code
will soon be obviated by proper support for live-in virtual registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253465 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-18 16:12:01 +00:00
Dan Gohman
3ba85f0622 [WebAssembly] Inline asm support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252997 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-13 01:42:29 +00:00