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9 Commits

Author SHA1 Message Date
Jacob Gravelle
fee2961b5a [WebAssembly] Fix WebAssemblyOptimizeReturned after r300367 
Summary:
Refactoring changed paramHasAttr(1 + i) to paramHasAttr(0), fix that to
paramHasAttr(i).
Add more tests to WebAssemblyOptimizeReturned that catch that
regression.

Reviewers: dschuff

Subscribers: jfb, sbc100, llvm-commits

Differential Revision: https://reviews.llvm.org/D32136

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300502 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-17 21:40:28 +00:00
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
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
d73b41ae22 [WebAssembly] Define WebAssembly-specific relocation codes. 
Currently WebAssembly has two kinds of relocations; data addresses and
function addresses. This adds ELF relocations for them, as well as an
MC symbol kind to indicate which type of relocation is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257416 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-11 23:38:05 +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
ae06f491f7 [WebAssembly] Add type prefixes to call instructions 
Add return type information to call and call_indirect instructions. This
allows them to be disambiguated without knowledge of the callee.

Differential Revision: http://reviews.llvm.org/D15484


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255565 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-12-14 22:56:51 +00:00
Dan Gohman
9eb92586b2 [WebAssembly] Don't perform the returned-argument optimization on constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254866 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-12-05 22:12:39 +00:00
Dan Gohman
dcdd1c138c [WebAssembly] Support for register stackifying with load and store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254076 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-25 16:55:01 +00:00