8 Commits

Author SHA1 Message Date
Sander de Smalen
690db16422 [AArch64] Make nxv1i1 types a legal type for SVE.
One motivation to add support for these types are the LD1Q/ST1Q
instructions in SME, for which we have defined a number of load/store
intrinsics which at the moment still take a `<vscale x 16 x i1>` predicate
regardless of their element type.

This patch adds basic support for the nxv1i1 type such that it can be passed/returned
from functions, as well as some basic support to support some existing tests that
result in a nxv1i1 type. It also adds support for splats.

Other operations (e.g. insert/extract subvector, logical ops, etc) will be
supported in follow-up patches.

Reviewed By: paulwalker-arm, efriedma

Differential Revision: https://reviews.llvm.org/D128665
2022-07-01 15:11:13 +00:00
Sander de Smalen
448d47f743 [AArch64][SVE] Implement all-inactive predicate with PFALSE.
Instead of using a WHILE XZR, XZR instruction, just emit a PFALSE.

Reviewed By: david-arm

Differential Revision: https://reviews.llvm.org/D109311
2021-09-07 14:29:02 +01:00
Sander de Smalen
672f673004 [SVE] Remove checks for warnings in scalable-vector tests.
After D98856 these tests will by default break (fatal_error) if any of
the wrong interfaces are used, so there's no longer a need to have a
RUN line that checks for a warning message emitted by the compiler.
2021-04-07 15:59:32 +01:00
David Sherwood
02650ac036 [SVE][CodeGen] Add README for SVE-related warnings in tests
I have added a new file:

  llvm/test/CodeGen/AArch64/README

that describes what to do in the event one of the SVE codegen tests
fails the warnings check. In addition, I've added comments to all
the relevant SVE tests pointing users at the README file.

Differential Revision: https://reviews.llvm.org/D83467
2020-07-14 08:31:10 +01:00
David Sherwood
3cfd74e64b [SVE] Add checks for no warnings in SVE tests
There are now quite a few SVE tests in LLVM and Clang that do not
emit warnings related to invalid use of EVT::getVectorNumElements()
and VectorType::getNumElements(). For these tests I have added
additional checks that there are no warnings in order to prevent
any future regressions.

Differential Revision: https://reviews.llvm.org/D80712
2020-06-18 13:18:01 +01:00
David Sherwood
e3836fe1a5 Revert "[SVE] Add checks for no warnings in SVE tests"
This reverts commit fb495c31701b2cd697cf4282f63764c9cefd49c0.

Was causing test failures and broke buildbot.
2020-06-18 08:03:31 +01:00
David Sherwood
fb495c3170 [SVE] Add checks for no warnings in SVE tests
There are now quite a few SVE tests in LLVM and Clang that do not
emit warnings related to invalid use of EVT::getVectorNumElements()
and VectorType::getNumElements(). For these tests I have added
additional checks that there are no warnings in order to prevent
any future regressions.

Differential Revision: https://reviews.llvm.org/D80712
2020-06-18 07:49:48 +01:00
David Sherwood
121ca44c19 [CodeGen] Use SPLAT_VECTOR for zeroinitialiser with scalable types
Adding tests that I forgot to add as part of a previous change:

https://reviews.llvm.org/D78636
2020-04-27 16:16:48 +01:00