[llvm] [RISCV] Lower @llvm.experimental.vector.compress for zvfhmin/zvfbfmin (PR #113770)
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llvm-commits at lists.llvm.org
Sat Oct 26 12:52:35 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-risc-v
Author: Luke Lau (lukel97)
<details>
<summary>Changes</summary>
This is a follow up to #<!-- -->113291 and handles f16/bf16 with zvfhmin and zvfbmin.
---
Full diff: https://github.com/llvm/llvm-project/pull/113770.diff
3 Files Affected:
- (modified) llvm/lib/Target/RISCV/RISCVISelLowering.cpp (+4-4)
- (modified) llvm/test/CodeGen/RISCV/rvv/fixed-vectors-compress-fp.ll (+88-2)
- (modified) llvm/test/CodeGen/RISCV/rvv/vector-compress.ll (+132-2)
``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index 69112d868bff82..af7a39b2580a37 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -1081,7 +1081,8 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM,
setOperationAction({ISD::INSERT_VECTOR_ELT, ISD::CONCAT_VECTORS,
ISD::INSERT_SUBVECTOR, ISD::EXTRACT_SUBVECTOR,
ISD::VECTOR_DEINTERLEAVE, ISD::VECTOR_INTERLEAVE,
- ISD::VECTOR_REVERSE, ISD::VECTOR_SPLICE},
+ ISD::VECTOR_REVERSE, ISD::VECTOR_SPLICE,
+ ISD::VECTOR_COMPRESS},
VT, Custom);
MVT EltVT = VT.getVectorElementType();
if (isTypeLegal(EltVT))
@@ -1333,7 +1334,8 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::UNDEF, VT, Custom);
setOperationAction({ISD::CONCAT_VECTORS, ISD::VECTOR_REVERSE,
- ISD::INSERT_SUBVECTOR, ISD::EXTRACT_SUBVECTOR},
+ ISD::INSERT_SUBVECTOR, ISD::EXTRACT_SUBVECTOR,
+ ISD::VECTOR_COMPRESS},
VT, Custom);
// FIXME: mload, mstore, mgather, mscatter, vp_load/store,
@@ -1440,8 +1442,6 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM,
ISD::STRICT_FCEIL, ISD::STRICT_FFLOOR, ISD::STRICT_FROUND,
ISD::STRICT_FROUNDEVEN, ISD::STRICT_FNEARBYINT},
VT, Custom);
-
- setOperationAction(ISD::VECTOR_COMPRESS, VT, Custom);
}
// Custom-legalize bitcasts from fixed-length vectors to scalar types.
diff --git a/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-compress-fp.ll b/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-compress-fp.ll
index 8f1ff7ed4a11e2..3069d601107570 100644
--- a/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-compress-fp.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-compress-fp.ll
@@ -1,6 +1,92 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
-; RUN: llc -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zfh,+zvfh -verify-machineinstrs < %s | FileCheck %s
-; RUN: llc -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zfh,+zvfh -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zvfh,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zvfh,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zvfhmin,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zvfhmin,+zvfbfmin < %s | FileCheck %s
+
+define <1 x bfloat> @vector_compress_v1bf16(<1 x bfloat> %v, <1 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v1bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 1, e16, mf4, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv1r.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <1 x bfloat> @llvm.experimental.vector.compress.v1bf16(<1 x bfloat> %v, <1 x i1> %mask, <1 x bfloat> undef)
+ ret <1 x bfloat> %ret
+}
+
+define <1 x bfloat> @vector_compress_v1bf16_passthru(<1 x bfloat> %passthru, <1 x bfloat> %v, <1 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v1bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 1, e16, mf4, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <1 x bfloat> @llvm.experimental.vector.compress.v1bf16(<1 x bfloat> %v, <1 x i1> %mask, <1 x bfloat> %passthru)
+ ret <1 x bfloat> %ret
+}
+
+define <2 x bfloat> @vector_compress_v2bf16(<2 x bfloat> %v, <2 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v2bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 2, e16, mf4, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv1r.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <2 x bfloat> @llvm.experimental.vector.compress.v2bf16(<2 x bfloat> %v, <2 x i1> %mask, <2 x bfloat> undef)
+ ret <2 x bfloat> %ret
+}
+
+define <2 x bfloat> @vector_compress_v2bf16_passthru(<2 x bfloat> %passthru, <2 x bfloat> %v, <2 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v2bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 2, e16, mf4, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <2 x bfloat> @llvm.experimental.vector.compress.v2bf16(<2 x bfloat> %v, <2 x i1> %mask, <2 x bfloat> %passthru)
+ ret <2 x bfloat> %ret
+}
+
+define <4 x bfloat> @vector_compress_v4bf16(<4 x bfloat> %v, <4 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v4bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 4, e16, mf2, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv1r.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <4 x bfloat> @llvm.experimental.vector.compress.v4bf16(<4 x bfloat> %v, <4 x i1> %mask, <4 x bfloat> undef)
+ ret <4 x bfloat> %ret
+}
+
+define <4 x bfloat> @vector_compress_v4bf16_passthru(<4 x bfloat> %passthru, <4 x bfloat> %v, <4 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v4bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 4, e16, mf2, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <4 x bfloat> @llvm.experimental.vector.compress.v4bf16(<4 x bfloat> %v, <4 x i1> %mask, <4 x bfloat> %passthru)
+ ret <4 x bfloat> %ret
+}
+
+define <8 x bfloat> @vector_compress_v8bf16(<8 x bfloat> %v, <8 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v8bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 8, e16, m1, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv.v.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <8 x bfloat> @llvm.experimental.vector.compress.v8bf16(<8 x bfloat> %v, <8 x i1> %mask, <8 x bfloat> undef)
+ ret <8 x bfloat> %ret
+}
+
+define <8 x bfloat> @vector_compress_v8bf16_passthru(<8 x bfloat> %passthru, <8 x bfloat> %v, <8 x i1> %mask) {
+; CHECK-LABEL: vector_compress_v8bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetivli zero, 8, e16, m1, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <8 x bfloat> @llvm.experimental.vector.compress.v8bf16(<8 x bfloat> %v, <8 x i1> %mask, <8 x bfloat> %passthru)
+ ret <8 x bfloat> %ret
+}
define <1 x half> @vector_compress_v1f16(<1 x half> %v, <1 x i1> %mask) {
; CHECK-LABEL: vector_compress_v1f16:
diff --git a/llvm/test/CodeGen/RISCV/rvv/vector-compress.ll b/llvm/test/CodeGen/RISCV/rvv/vector-compress.ll
index 85d72ad2fe9cb4..7516a72a92bc8b 100644
--- a/llvm/test/CodeGen/RISCV/rvv/vector-compress.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/vector-compress.ll
@@ -1,6 +1,8 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
-; RUN: llc -verify-machineinstrs -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zfh,+zvfh %s -o - | FileCheck %s
-; RUN: llc -verify-machineinstrs -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zfh,+zvfh %s -o - | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zvfh,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zvfh,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv32 -mattr=+m,+v,+f,+d,+zvfhmin,+zvfbfmin < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=riscv64 -mattr=+m,+v,+f,+d,+zvfhmin,+zvfbfmin < %s | FileCheck %s
; Vector compress for i8 type
@@ -472,6 +474,134 @@ define <vscale x 8 x i64> @vector_compress_nxv8i64_passthru(<vscale x 8 x i64> %
ret <vscale x 8 x i64> %ret
}
+; Vector compress for bf16 type
+
+define <vscale x 1 x bfloat> @vector_compress_nxv1bf16(<vscale x 1 x bfloat> %data, <vscale x 1 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv1bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, mf4, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv1r.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <vscale x 1 x bfloat> @llvm.experimental.vector.compress.nxv1bf16(<vscale x 1 x bfloat> %data, <vscale x 1 x i1> %mask, <vscale x 1 x bfloat> undef)
+ ret <vscale x 1 x bfloat> %ret
+}
+
+define <vscale x 1 x bfloat> @vector_compress_nxv1bf16_passthru(<vscale x 1 x bfloat> %passthru, <vscale x 1 x bfloat> %data, <vscale x 1 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv1bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, mf4, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 1 x bfloat> @llvm.experimental.vector.compress.nxv1bf16(<vscale x 1 x bfloat> %data, <vscale x 1 x i1> %mask, <vscale x 1 x bfloat> %passthru)
+ ret <vscale x 1 x bfloat> %ret
+}
+
+define <vscale x 2 x bfloat> @vector_compress_nxv2bf16(<vscale x 2 x bfloat> %data, <vscale x 2 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv2bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, mf2, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv1r.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <vscale x 2 x bfloat> @llvm.experimental.vector.compress.nxv2bf16(<vscale x 2 x bfloat> %data, <vscale x 2 x i1> %mask, <vscale x 2 x bfloat> undef)
+ ret <vscale x 2 x bfloat> %ret
+}
+
+define <vscale x 2 x bfloat> @vector_compress_nxv2bf16_passthru(<vscale x 2 x bfloat> %passthru, <vscale x 2 x bfloat> %data, <vscale x 2 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv2bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, mf2, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 2 x bfloat> @llvm.experimental.vector.compress.nxv2bf16(<vscale x 2 x bfloat> %data, <vscale x 2 x i1> %mask, <vscale x 2 x bfloat> %passthru)
+ ret <vscale x 2 x bfloat> %ret
+}
+
+define <vscale x 4 x bfloat> @vector_compress_nxv4bf16(<vscale x 4 x bfloat> %data, <vscale x 4 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv4bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m1, ta, ma
+; CHECK-NEXT: vcompress.vm v9, v8, v0
+; CHECK-NEXT: vmv.v.v v8, v9
+; CHECK-NEXT: ret
+ %ret = call <vscale x 4 x bfloat> @llvm.experimental.vector.compress.nxv4bf16(<vscale x 4 x bfloat> %data, <vscale x 4 x i1> %mask, <vscale x 4 x bfloat> undef)
+ ret <vscale x 4 x bfloat> %ret
+}
+
+define <vscale x 4 x bfloat> @vector_compress_nxv4bf16_passthru(<vscale x 4 x bfloat> %passthru, <vscale x 4 x bfloat> %data, <vscale x 4 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv4bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m1, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v9, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 4 x bfloat> @llvm.experimental.vector.compress.nxv4bf16(<vscale x 4 x bfloat> %data, <vscale x 4 x i1> %mask, <vscale x 4 x bfloat> %passthru)
+ ret <vscale x 4 x bfloat> %ret
+}
+
+define <vscale x 8 x bfloat> @vector_compress_nxv8bf16(<vscale x 8 x bfloat> %data, <vscale x 8 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv8bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m2, ta, ma
+; CHECK-NEXT: vcompress.vm v10, v8, v0
+; CHECK-NEXT: vmv.v.v v8, v10
+; CHECK-NEXT: ret
+ %ret = call <vscale x 8 x bfloat> @llvm.experimental.vector.compress.nxv8bf16(<vscale x 8 x bfloat> %data, <vscale x 8 x i1> %mask, <vscale x 8 x bfloat> undef)
+ ret <vscale x 8 x bfloat> %ret
+}
+
+define <vscale x 8 x bfloat> @vector_compress_nxv8bf16_passthru(<vscale x 8 x bfloat> %passthru, <vscale x 8 x bfloat> %data, <vscale x 8 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv8bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m2, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v10, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 8 x bfloat> @llvm.experimental.vector.compress.nxv8bf16(<vscale x 8 x bfloat> %data, <vscale x 8 x i1> %mask, <vscale x 8 x bfloat> %passthru)
+ ret <vscale x 8 x bfloat> %ret
+}
+
+define <vscale x 16 x bfloat> @vector_compress_nxv16bf16(<vscale x 16 x bfloat> %data, <vscale x 16 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv16bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m4, ta, ma
+; CHECK-NEXT: vcompress.vm v12, v8, v0
+; CHECK-NEXT: vmv.v.v v8, v12
+; CHECK-NEXT: ret
+ %ret = call <vscale x 16 x bfloat> @llvm.experimental.vector.compress.nxv16bf16(<vscale x 16 x bfloat> %data, <vscale x 16 x i1> %mask, <vscale x 16 x bfloat> undef)
+ ret <vscale x 16 x bfloat> %ret
+}
+
+define <vscale x 16 x bfloat> @vector_compress_nxv16bf16_passthru(<vscale x 16 x bfloat> %passthru, <vscale x 16 x bfloat> %data, <vscale x 16 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv16bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m4, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v12, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 16 x bfloat> @llvm.experimental.vector.compress.nxv16bf16(<vscale x 16 x bfloat> %data, <vscale x 16 x i1> %mask, <vscale x 16 x bfloat> %passthru)
+ ret <vscale x 16 x bfloat> %ret
+}
+
+define <vscale x 32 x bfloat> @vector_compress_nxv32bf16(<vscale x 32 x bfloat> %data, <vscale x 32 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv32bf16:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m8, ta, ma
+; CHECK-NEXT: vcompress.vm v16, v8, v0
+; CHECK-NEXT: vmv.v.v v8, v16
+; CHECK-NEXT: ret
+ %ret = call <vscale x 32 x bfloat> @llvm.experimental.vector.compress.nxv32bf16(<vscale x 32 x bfloat> %data, <vscale x 32 x i1> %mask, <vscale x 32 x bfloat> undef)
+ ret <vscale x 32 x bfloat> %ret
+}
+
+define <vscale x 32 x bfloat> @vector_compress_nxv32bf16_passthru(<vscale x 32 x bfloat> %passthru, <vscale x 32 x bfloat> %data, <vscale x 32 x i1> %mask) {
+; CHECK-LABEL: vector_compress_nxv32bf16_passthru:
+; CHECK: # %bb.0:
+; CHECK-NEXT: vsetvli a0, zero, e16, m8, tu, ma
+; CHECK-NEXT: vcompress.vm v8, v16, v0
+; CHECK-NEXT: ret
+ %ret = call <vscale x 32 x bfloat> @llvm.experimental.vector.compress.nxv32bf16(<vscale x 32 x bfloat> %data, <vscale x 32 x i1> %mask, <vscale x 32 x bfloat> %passthru)
+ ret <vscale x 32 x bfloat> %ret
+}
+
; Vector compress for f16 type
define <vscale x 1 x half> @vector_compress_nxv1f16(<vscale x 1 x half> %data, <vscale x 1 x i1> %mask) {
``````````
</details>
https://github.com/llvm/llvm-project/pull/113770
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