Commit Graph

15 Commits

Author SHA1 Message Date
Thomas Lively 122b0220fd [WebAssembly] Remove datalayout strings from llc tests
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
2021-07-14 11:17:08 -07:00
Thomas Lively 45783d0e8a [WebAssembly] Implement i64x2 comparisons
Removes the prototype builtin and intrinsic for i64x2.eq and implements that
instruction as well as the other i64x2 comparison instructions in the final SIMD
spec. Unsigned comparisons were not included in the final spec, so they still
need to be scalarized via a custom lowering.

Differential Revision: https://reviews.llvm.org/D99623
2021-03-31 10:46:17 -07:00
Thomas Lively 8638c897f4 [WebAssembly] Remove unimplemented-simd target feature
Now that the WebAssembly SIMD specification is finalized and engines are
generally up-to-date, there is no need for a separate target feature for gating
SIMD instructions that engines have not implemented. With this change,
v128.const is now enabled by default with the simd128 target feature.

Differential Revision: https://reviews.llvm.org/D98457
2021-03-18 10:23:12 -07:00
Thomas Lively ecb2e5bcd7 [WebAssembly] Implement v128.select
Although the SIMD spec proposal does not specifically include a
select instruction, the select instruction in MVP WebAssembly is
polymorphic over the selected types, so it is able to work on v128
values when they are enabled. This patch introduces a new variant of
the select instruction for each legal vector type. Additional ISel
patterns are adapted from the SELECT_I32 and SELECT_I64 patterns.

Depends on D83736.

Differential Revision: https://reviews.llvm.org/D83737
2020-07-16 11:37:25 -07:00
Thomas Lively f7868f87ac [WebAssembly] Autogenerate tests for simd-select.ll
Updating the simd-select.ll tests manually with consistent named
regexps for the register numbers was taking more time than it was
worth, so this patch updates that test file to have autogenerated
output. This is not a significant readability regression because the
tests in that file are all very small.

Depends on D83734.

Differential Revision: https://reviews.llvm.org/D83736
2020-07-16 11:19:09 -07:00
Thomas Lively f0f9787646 [WebAssembly] Lower vselect to v128.bitselect
We were previously expanding vselect and matching on the expansion to
generate bitselects, but in some cases the expansion would be further
combined and a bitselect would not get generated. This patch improves
codegen in those cases by legalizing vselect and lowering it to
v128.bitselect. The old pattern that matches the expansion is still
useful for lowering IR that already uses the expansion rather than a
select operation.

Differential Revision: https://reviews.llvm.org/D83734
2020-07-16 11:11:19 -07:00
Nikita Popov e661f946a7 [WebAssembly] Fix select of and (PR40805)
Fixes https://bugs.llvm.org/show_bug.cgi?id=40805 introduced by
patterns added in D53676.

I'm removing the patterns entirely here, as they are not correct
in the general case. If necessary something more specific can be
added in the future.

Differential Revision: https://reviews.llvm.org/D58575

llvm-svn: 354733
2019-02-23 18:59:01 +00:00
Thomas Lively 64a39a1c4e [WebAssembly] Add unimplemented-simd128 subtarget feature
Summary:
This is a third attempt, but this time we have vetted it on Windows
first. The previous errors were due to an uninitialized class member.

Reviewers: aheejin

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

Differential Revision: https://reviews.llvm.org/D56560

llvm-svn: 350901
2019-01-10 22:32:11 +00:00
Thomas Lively fdd4999b86 Revert "[WebAssembly] Add simd128-unimplemented subtarget feature"
This reverts rL350791.

llvm-svn: 350795
2019-01-10 04:09:25 +00:00
Thomas Lively eb6f9abd41 [WebAssembly] Add simd128-unimplemented subtarget feature
This is a second attempt at r350778, which was reverted in
r350789. The only change is that the unimplemented-simd128 feature has
been renamed simd128-unimplemented, since naming it
unimplemented-simd128 somehow made the simd128 feature flag enable the
unimplemented-simd128 feature on Windows.

llvm-svn: 350791
2019-01-10 02:55:52 +00:00
Thomas Lively fdca5fab60 Revert "[WebAssembly] Add unimplemented-simd128 subtarget feature"
This reverts L350778.

llvm-svn: 350789
2019-01-10 01:37:44 +00:00
Thomas Lively 2eeade1814 [WebAssembly] Add unimplemented-simd128 subtarget feature
Summary:
This replaces the old ad-hoc -wasm-enable-unimplemented-simd
flag. Also makes the new unimplemented-simd128 feature imply the
simd128 feature.

Reviewers: aheejin, dschuff

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

Differential Revision: https://reviews.llvm.org/D56501

llvm-svn: 350778
2019-01-09 23:59:37 +00:00
Thomas Lively b6dac89c87 [WebAssembly] Fix invalid machine instrs in -O0, verify in tests
Reviewers: aheejin, dschuff

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

Differential Revision: https://reviews.llvm.org/D55956

llvm-svn: 349889
2018-12-21 06:58:15 +00:00
Wouter van Oortmerssen 49482f824a [WebAssembly] replaced .param/.result by .functype
Summary:
This makes it easier/cleaner to generate a single signature from
this directive. Also:
- Adds the symbol name, such that we don't depend on the location
  of this directive anymore.
- Actually constructs the signature in the assembler, and make the
  assembler own it.
- Refactor the use of MVT vs ValType in the streamer and assembler
  to require less conversions overall.
- Changed 700 or so tests to use it.

Reviewers: sbc100, dschuff

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

Differential Revision: https://reviews.llvm.org/D54652

llvm-svn: 347228
2018-11-19 17:10:36 +00:00
Thomas Lively 38c902bc2e [WebAssembly] Lower select for vectors
Summary:

Reviewers: aheejin, dschuff

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

Differential Revision: https://reviews.llvm.org/D53675

llvm-svn: 346462
2018-11-09 01:38:44 +00:00