Commit Graph

13 Commits

Author SHA1 Message Date
Simon Moll ea2cdbf5e6 [VP] Declaration and docs for vp.select intrinsic
llvm.vp.select extends the regular select instruction with an explicit
vector length (%evl).

All lanes with indexes at and above %evl are
undefined. Lanes below %evl are taken from the first input where the
mask is true and from the second input otherwise.

Reviewed By: rogfer01

Differential Revision: https://reviews.llvm.org/D105351
2021-09-02 11:17:14 +02:00
Fraser Cormack f3e9047249 [VP] Add vector-predicated reduction intrinsics
This patch adds vector-predicated ("VP") reduction intrinsics corresponding to
each of the existing unpredicated `llvm.vector.reduce.*` versions. Unlike the
unpredicated reductions, all VP reductions have a start value. This start value
is returned when the no vector element is active.

Support for expansion on targets without native vector-predication support is
included.

This patch is based on the ["reduction
slice"](https://reviews.llvm.org/D57504#1732277) of the LLVM-VP reference patch
(https://reviews.llvm.org/D57504).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D104308
2021-08-17 17:56:35 +01:00
Fraser Cormack 5cbd5c62be [VP][NFC] Correct formatting in unit test 2021-07-15 12:38:47 +01:00
Hussain Kadhem d21a35ac0a [VP] Implementation of intrinsic and SDNode definitions for VP load, store, gather, scatter.
This patch adds intrinsic definitions and SDNodes for predicated
load/store/gather/scatter, based on the work done in D57504.

Reviewed By: simoll, craig.topper

Differential Revision: https://reviews.llvm.org/D99355
2021-07-01 13:34:44 +02:00
Fraser Cormack 983972bfb0 [VP][NFCI] Address various clang-tidy warnings
Reviewed By: simoll

Differential Revision: https://reviews.llvm.org/D104288
2021-06-21 10:57:42 +01:00
Simon Moll 74d45b884c [VP] Binary floating-point intrinsics.
This patch implements vector-predicated intrinsics on IR level for fadd,
fsub, fmul, fdiv and frem.  There operate in the default floating-point
environment. We will use constrained fp operand bundles for constrained
vector-predicated fp math (D93455).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D93470
2021-06-14 08:51:41 +02:00
Simon Moll 0f9d299122 [VP] getDeclarationForParams
`VPIntrinsic::getDeclarationForParams` creates a vp intrinsic
declaration for parameters you want to call it with.  This is in
preparation of a new builder class that makes emitting vp intrinsic code
nearly as convenient as using a plain ir builder (aka `VectorBuilder`,
to be used by D99750).

Reviewed By: frasercrmck, craig.topper, vkmr

Differential Revision: https://reviews.llvm.org/D102686
2021-06-08 14:21:28 +02:00
Craig Topper 2830d924b0 [VP] Make getMaskParamPos/getVectorLengthParamPos return unsigned. Lowercase function names.
Parameter positions seem like they should be unsigned.

While there, make function names lowercase per coding standards.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D103224
2021-05-28 11:28:47 -07:00
Simon Moll 66963bf381 [VP] make getFunctionalOpcode return an Optional
The operation of some VP intrinsics do/will not map to regular
instruction opcodes.  Returning 'None' seems more intuitive here than
'Instruction::Call'.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D102778
2021-05-19 17:08:34 +02:00
Simon Moll b159987054 [VP] Improve the VP intrinsic unittests
Test that all VP intrinsics are tested.
Test intrinsic id -> opcode -> intrinsic id round tripping.
Test property scopes in the include/llvm/IR/VPIntrinsics.def file.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D93534
2021-05-11 11:44:09 +02:00
Simon Moll a0dfdda4e5 [VP][Fix] canIgnoreVectorLength for scalable types
This patch fixes VPIntrinsic::canIgnoreVectorLength when used on a
VPIntrinsic with scalable vector types. Also includes new unittest cases
for the '<vscale x 1 x whatever>' and '%evl == vscale' corner cases.
2020-06-04 14:17:42 +02:00
Christopher Tetreault c858debebc Remove asserting getters from base Type
Summary:
Remove asserting vector getters from Type in preparation for the
VectorType refactor. The existence of these functions complicates the
refactor while adding little value.

Reviewers: dexonsmith, sdesmalen, efriedma

Reviewed By: efriedma

Subscribers: cfe-commits, hiraditya, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D77278
2020-04-17 14:03:31 -07:00
Simon Moll 733b319948 [VP,Integer,#1] Vector-predicated integer intrinsics
Summary:
This patch adds IR intrinsics for vector-predicated integer arithmetic.

It is subpatch #1 of the [integer
slice](https://reviews.llvm.org/D57504#1732277) of
[LLVM-VP](https://reviews.llvm.org/D57504).  LLVM-VP is a larger effort to bring
native vector predication to LLVM.

Reviewed By: andrew.w.kaylor

Differential Revision: https://reviews.llvm.org/D69891
2020-03-19 10:51:47 +01:00