Commit Graph

11 Commits

Author SHA1 Message Date
Heejin Ahn c35538fcab [WebAssembly] Delete a specific push number from test expectations
Summary:
This shouldn't have been a specific number but rather a regex. This was
a part of rL339474 which got reverted.

Reviewers: aardappel

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

Differential Revision: https://reviews.llvm.org/D50728

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339736 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-14 22:14:51 +00:00
Wouter van Oortmerssen a297d96416 Revert "[WebAssembly] Added default stack-only instruction mode for MC."
This reverts commit 917a99b71ce21c975be7bfbf66f4040f965d9f3c.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339630 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-13 23:12:49 +00:00
Wouter van Oortmerssen eb8079e823 [WebAssembly] Added default stack-only instruction mode for MC.
Summary:
Moved Explicit Locals pass to last.
Made that pass obligatory.
Made it convert from register to stack based instructions, and removed the registers.
Fixes to related code that was expecting register based instructions.
Added the correct testing flag to all tests, depending on what the
format they were expecting so far.
Translated one test to stack format as example: reg-stackify-stack.ll

tested:
llvm-lit -v `find test -name WebAssembly`
unittests/MC/*

Reviewers: dschuff, sunfish

Subscribers: jfb, llvm-commits, aheejin, eraman, jgravelle-google, sbc100

Differential Revision: https://reviews.llvm.org/D50568

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339474 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-10 21:32:47 +00:00
Wouter van Oortmerssen bbe055241a Revert "[WebAssembly] Added default stack-only instruction mode for MC."
This reverts commit d3c9af4179eae7793d1487d652e2d4e23844555f.
(SVN revision 338164)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338176 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-27 23:19:51 +00:00
Wouter van Oortmerssen cc0c5b9ce0 [WebAssembly] Added default stack-only instruction mode for MC.
Summary:
Moved Explicit Locals pass to last.
Made that pass obligatory.
Made it convert from register to stack based instructions, and removed the registers.
Fixes to related code that was expecting register based instructions.
Added the correct testing flag to all tests, depending on what the
format they were expecting so far.
Translated one test to stack format as example: reg-stackify-stack.ll

tested:
llvm-lit -v `find test -name WebAssembly`
unittests/MC/*

Reviewers: dschuff, sunfish

Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D49160

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338164 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-27 20:56:43 +00:00
Heejin Ahn 9dc116b0c7 [WebAssembly] Add missing -mattr=+exception-handling guards
Summary:
The use of exception handling instructions should only be enabled with
`-mattr=+exception-handling` option.

Reviewers: jgravelle-google

Subscribers: dschuff, sbc100, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D49391

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337425 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-18 21:42:22 +00:00
Eric Christopher 9e49a81863 Add -allow-deprecated-dag-overlap to one of the experimental webassembly target tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336870 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-12 00:01:51 +00:00
Heejin Ahn 6aa7ab2443 [WebAssembly] Add WebAssemblyLateEHPrepare pass
Summary:
Add WebAssemblyLateEHPrepare pass that does several small jobs for
exception handling. This runs before CFGSort, and is different from
WasmEHPrepare pass that runs before ISel, even though the names are
similar.

Reviewers: dschuff, majnemer

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

Differential Revision: https://reviews.llvm.org/D46803

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335438 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-25 01:07:11 +00:00
Heejin Ahn 60c0443a11 [WebAssembly] Support instruction selection for catching exceptions
Summary:
This lowers exception catching-related instructions:
1. Lowers `wasm.catch` intrinsic to `catch` instruction
2. Removes `catchpad` and `cleanuppad` instructions; they are not
necessary after isel phase. (`MachineBasicBlock::isEHFuncletEntry()` or
`MachineBasicBlock::isEHPad()` can be used instead.)
3. Lowers `catchret` and `cleanupret` instructions to pseudo `catchret`
and `cleanupret` instructions in isel, which will be replaced with other
instructions in `WebAssemblyExceptionPrepare` pass.
4. Adds 'WebAssemblyExceptionPrepare` pass, which is for running various
transformation for EH. Currently this pass only replaces `catchret` and
`cleanupret` instructions into appropriate wasm instructions to make
this patch successfully run until the end.

Currently this does not handle lowering of intrinsics related to LSDA
info generation (`wasm.landingpad.index` and `wasm.lsda`), because they
cannot be tested without implementing `EHStreamer`'s wasm-specific
handlers. They are marked as TODO, which is needed to make isel pass.
Also this does not generate `try` and `end_try` markers yet, which will
be handled in later patches.

This patch is based on the first wasm EH proposal.
(https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md)

Reviewers: dschuff, majnemer

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

Differential Revision: https://reviews.llvm.org/D44090

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333705 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-31 22:25:54 +00:00
Sam Clegg 8d1235ff26 [WebAsembly] Update default triple in test files to wasm32-unknown-unkown.
Summary: The final -wasm component has been the default for some time now.

Subscribers: jfb, dschuff, jgravelle-google, eraman, aheejin, JDevlieghere, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D46342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332007 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-10 17:49:11 +00:00
Heejin Ahn f21a6b7f6b [WebAssembly] Add support for exception handling instructions
Summary:
This adds backend support for throw, rethrow, try, and try_end instructions.
This needs the corresponding clang builtin support:
https://reviews.llvm.org/D34783
This follows the Wasm exception handling proposal in
https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md

Reviewers: sunfish, dschuff

Reviewed By: dschuff

Subscribers: jfb, sbc100, jgravelle-google

Differential Revision: https://reviews.llvm.org/D34826

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306774 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-30 00:43:15 +00:00