[clang] [llvm] [AArch64][SME] Add intrinsics for multi-vector BFCLAMP (PR #88251)
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cfe-commits at lists.llvm.org
Wed Apr 10 03:30:00 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-ir
@llvm/pr-subscribers-clang
Author: None (Lukacma)
<details>
<summary>Changes</summary>
According to the specification in
https://github.com/ARM-software/acle/pull/309 this adds the intrinsics
```
svbfloat16x2_t svclamp[_single_bf16_x2](svbfloat16x2_t zd, svbfloat16_t zn,
svbfloat16_t zm) __arm_streaming;
svbfloat16x4_t svclamp[_single_bf16_x4](svbfloat16x4_t zd, svbfloat16_t zn,
svbfloat16_t zm) __arm_streaming;
```
These are available only if __ARM_FEATURE_SME_B16B16 is enabled.
---
Full diff: https://github.com/llvm/llvm-project/pull/88251.diff
5 Files Affected:
- (modified) clang/include/clang/Basic/arm_sve.td (+5)
- (modified) clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c (+68-4)
- (modified) llvm/include/llvm/IR/IntrinsicsAArch64.td (+2)
- (modified) llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp (+6)
- (modified) llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll (+25-1)
``````````diff
diff --git a/clang/include/clang/Basic/arm_sve.td b/clang/include/clang/Basic/arm_sve.td
index 6da30e08e7521e..63ca495a1bc9f1 100644
--- a/clang/include/clang/Basic/arm_sve.td
+++ b/clang/include/clang/Basic/arm_sve.td
@@ -2148,6 +2148,11 @@ let TargetGuard = "sme2" in {
def SVSCLAMP_X4 : SInst<"svclamp[_single_{d}_x4]", "44dd", "csil", MergeNone, "aarch64_sve_sclamp_single_x4", [IsStreaming], []>;
def SVUCLAMP_X4 : SInst<"svclamp[_single_{d}_x4]", "44dd", "UcUsUiUl", MergeNone, "aarch64_sve_uclamp_single_x4", [IsStreaming], []>;
def SVFCLAMP_X4 : SInst<"svclamp[_single_{d}_x4]", "44dd", "hfd", MergeNone, "aarch64_sve_fclamp_single_x4", [IsStreaming], []>;
+
+ let TargetGuard = "b16b16"in {
+ def SVBFCLAMP_X2 : SInst<"svclamp[_single_{d}_x2]", "22dd", "b", MergeNone, "aarch64_sve_bfclamp_single_x2", [IsStreaming], []>;
+ def SVBFCLAMP_X4 : SInst<"svclamp[_single_{d}_x4]", "44dd", "b", MergeNone, "aarch64_sve_bfclamp_single_x4", [IsStreaming], []>;
+ }
}
let TargetGuard = "sme2" in {
diff --git a/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c b/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
index 257cb595250181..1dd5aeee35fe73 100644
--- a/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
+++ b/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
@@ -1,12 +1,12 @@
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// REQUIRES: aarch64-registered-target
-// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 \
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -target-feature +b16b16 \
// RUN: -S -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
-// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sme2 \
+// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sme2 -target-feature +b16b16 \
// RUN: -S -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
-// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 \
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -target-feature +b16b16 \
// RUN: -S -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
-// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sme2 \
+// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sme2 -target-feature +b16b16 \
// RUN: -S -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 \
// RUN: -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
@@ -745,3 +745,67 @@ svfloat32x4_t test_svclamp_single_f32_x4(svfloat32x4_t op1, svfloat32_t op2, svf
svfloat64x4_t test_svclamp_single_f64_x4(svfloat64x4_t op1, svfloat64_t op2, svfloat64_t op3) __arm_streaming {
return SVE_ACLE_FUNC(svclamp, _single_f64_x4, , )(op1, op2, op3);
}
+
+// CHECK-LABEL: @test_svclamp_single_bf16_x2(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv16bf16(<vscale x 16 x bfloat> [[OP1:%.*]], i64 0)
+// CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv16bf16(<vscale x 16 x bfloat> [[OP1]], i64 8)
+// CHECK-NEXT: [[TMP2:%.*]] = tail call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x2.nxv8bf16(<vscale x 8 x bfloat> [[TMP0]], <vscale x 8 x bfloat> [[TMP1]], <vscale x 8 x bfloat> [[OP2:%.*]], <vscale x 8 x bfloat> [[OP3:%.*]])
+// CHECK-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP2]], 0
+// CHECK-NEXT: [[TMP4:%.*]] = tail call <vscale x 16 x bfloat> @llvm.vector.insert.nxv16bf16.nxv8bf16(<vscale x 16 x bfloat> poison, <vscale x 8 x bfloat> [[TMP3]], i64 0)
+// CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP2]], 1
+// CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 16 x bfloat> @llvm.vector.insert.nxv16bf16.nxv8bf16(<vscale x 16 x bfloat> [[TMP4]], <vscale x 8 x bfloat> [[TMP5]], i64 8)
+// CHECK-NEXT: ret <vscale x 16 x bfloat> [[TMP6]]
+//
+// CPP-CHECK-LABEL: @_Z27test_svclamp_single_bf16_x214svbfloat16x2_tu14__SVBfloat16_tS0_(
+// CPP-CHECK-NEXT: entry:
+// CPP-CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv16bf16(<vscale x 16 x bfloat> [[OP1:%.*]], i64 0)
+// CPP-CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv16bf16(<vscale x 16 x bfloat> [[OP1]], i64 8)
+// CPP-CHECK-NEXT: [[TMP2:%.*]] = tail call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x2.nxv8bf16(<vscale x 8 x bfloat> [[TMP0]], <vscale x 8 x bfloat> [[TMP1]], <vscale x 8 x bfloat> [[OP2:%.*]], <vscale x 8 x bfloat> [[OP3:%.*]])
+// CPP-CHECK-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP2]], 0
+// CPP-CHECK-NEXT: [[TMP4:%.*]] = tail call <vscale x 16 x bfloat> @llvm.vector.insert.nxv16bf16.nxv8bf16(<vscale x 16 x bfloat> poison, <vscale x 8 x bfloat> [[TMP3]], i64 0)
+// CPP-CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP2]], 1
+// CPP-CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 16 x bfloat> @llvm.vector.insert.nxv16bf16.nxv8bf16(<vscale x 16 x bfloat> [[TMP4]], <vscale x 8 x bfloat> [[TMP5]], i64 8)
+// CPP-CHECK-NEXT: ret <vscale x 16 x bfloat> [[TMP6]]
+//
+svbfloat16x2_t test_svclamp_single_bf16_x2(svbfloat16x2_t op1, svbfloat16_t op2, svbfloat16_t op3) __arm_streaming {
+ return SVE_ACLE_FUNC(svclamp, _single_bf16_x2, , )(op1, op2, op3);
+}
+
+// CHECK-LABEL: @test_svclamp_single_bf16_x4(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1:%.*]], i64 0)
+// CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 8)
+// CHECK-NEXT: [[TMP2:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 16)
+// CHECK-NEXT: [[TMP3:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 24)
+// CHECK-NEXT: [[TMP4:%.*]] = tail call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x4.nxv8bf16(<vscale x 8 x bfloat> [[TMP0]], <vscale x 8 x bfloat> [[TMP1]], <vscale x 8 x bfloat> [[TMP2]], <vscale x 8 x bfloat> [[TMP3]], <vscale x 8 x bfloat> [[OP2:%.*]], <vscale x 8 x bfloat> [[OP3:%.*]])
+// CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 0
+// CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> poison, <vscale x 8 x bfloat> [[TMP5]], i64 0)
+// CHECK-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 1
+// CHECK-NEXT: [[TMP8:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP6]], <vscale x 8 x bfloat> [[TMP7]], i64 8)
+// CHECK-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 2
+// CHECK-NEXT: [[TMP10:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP8]], <vscale x 8 x bfloat> [[TMP9]], i64 16)
+// CHECK-NEXT: [[TMP11:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 3
+// CHECK-NEXT: [[TMP12:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP10]], <vscale x 8 x bfloat> [[TMP11]], i64 24)
+// CHECK-NEXT: ret <vscale x 32 x bfloat> [[TMP12]]
+//
+// CPP-CHECK-LABEL: @_Z27test_svclamp_single_bf16_x414svbfloat16x4_tu14__SVBfloat16_tS0_(
+// CPP-CHECK-NEXT: entry:
+// CPP-CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1:%.*]], i64 0)
+// CPP-CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 8)
+// CPP-CHECK-NEXT: [[TMP2:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 16)
+// CPP-CHECK-NEXT: [[TMP3:%.*]] = tail call <vscale x 8 x bfloat> @llvm.vector.extract.nxv8bf16.nxv32bf16(<vscale x 32 x bfloat> [[OP1]], i64 24)
+// CPP-CHECK-NEXT: [[TMP4:%.*]] = tail call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x4.nxv8bf16(<vscale x 8 x bfloat> [[TMP0]], <vscale x 8 x bfloat> [[TMP1]], <vscale x 8 x bfloat> [[TMP2]], <vscale x 8 x bfloat> [[TMP3]], <vscale x 8 x bfloat> [[OP2:%.*]], <vscale x 8 x bfloat> [[OP3:%.*]])
+// CPP-CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 0
+// CPP-CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> poison, <vscale x 8 x bfloat> [[TMP5]], i64 0)
+// CPP-CHECK-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 1
+// CPP-CHECK-NEXT: [[TMP8:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP6]], <vscale x 8 x bfloat> [[TMP7]], i64 8)
+// CPP-CHECK-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 2
+// CPP-CHECK-NEXT: [[TMP10:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP8]], <vscale x 8 x bfloat> [[TMP9]], i64 16)
+// CPP-CHECK-NEXT: [[TMP11:%.*]] = extractvalue { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } [[TMP4]], 3
+// CPP-CHECK-NEXT: [[TMP12:%.*]] = tail call <vscale x 32 x bfloat> @llvm.vector.insert.nxv32bf16.nxv8bf16(<vscale x 32 x bfloat> [[TMP10]], <vscale x 8 x bfloat> [[TMP11]], i64 24)
+// CPP-CHECK-NEXT: ret <vscale x 32 x bfloat> [[TMP12]]
+//
+svbfloat16x4_t test_svclamp_single_bf16_x4(svbfloat16x4_t op1, svbfloat16_t op2, svbfloat16_t op3) __arm_streaming {
+ return SVE_ACLE_FUNC(svclamp, _single_bf16_x4, , )(op1, op2, op3);
+}
diff --git a/llvm/include/llvm/IR/IntrinsicsAArch64.td b/llvm/include/llvm/IR/IntrinsicsAArch64.td
index 921e5b95ae03e8..6ab6733b122a44 100644
--- a/llvm/include/llvm/IR/IntrinsicsAArch64.td
+++ b/llvm/include/llvm/IR/IntrinsicsAArch64.td
@@ -3440,10 +3440,12 @@ let TargetPrefix = "aarch64" in {
def int_aarch64_sve_sclamp_single_x2 : SME2_VG2_Multi_Single_Single_Intrinsic;
def int_aarch64_sve_uclamp_single_x2 : SME2_VG2_Multi_Single_Single_Intrinsic;
def int_aarch64_sve_fclamp_single_x2 : SME2_VG2_Multi_Single_Single_Intrinsic;
+ def int_aarch64_sve_bfclamp_single_x2 : SME2_VG2_Multi_Single_Single_Intrinsic;
def int_aarch64_sve_sclamp_single_x4 : SME2_VG4_Multi_Single_Single_Intrinsic;
def int_aarch64_sve_uclamp_single_x4 : SME2_VG4_Multi_Single_Single_Intrinsic;
def int_aarch64_sve_fclamp_single_x4 : SME2_VG4_Multi_Single_Single_Intrinsic;
+ def int_aarch64_sve_bfclamp_single_x4 : SME2_VG4_Multi_Single_Single_Intrinsic;
//
// Multi-vector add/sub and accumulate into ZA
diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
index 163ed520a8a677..3a27db9246f748 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -5672,6 +5672,9 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) {
AArch64::FCLAMP_VG2_2Z2Z_D}))
SelectClamp(Node, 2, Op);
return;
+ case Intrinsic::aarch64_sve_bfclamp_single_x2:
+ SelectClamp(Node, 2, AArch64::BFCLAMP_VG2_2ZZZ_H);
+ return;
case Intrinsic::aarch64_sve_sclamp_single_x4:
if (auto Op = SelectOpcodeFromVT<SelectTypeKind::Int>(
Node->getValueType(0),
@@ -5693,6 +5696,9 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) {
AArch64::FCLAMP_VG4_4Z4Z_D}))
SelectClamp(Node, 4, Op);
return;
+ case Intrinsic::aarch64_sve_bfclamp_single_x4:
+ SelectClamp(Node, 4, AArch64::BFCLAMP_VG4_4ZZZ_H);
+ return;
case Intrinsic::aarch64_sve_add_single_x2:
if (auto Op = SelectOpcodeFromVT<SelectTypeKind::Int>(
Node->getValueType(0),
diff --git a/llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll b/llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll
index 61b67755a35441..7934f831a7e62f 100644
--- a/llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll
+++ b/llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll
@@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2p1 -mattr=+b16b16 -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2p1 -mattr=+sme2 -mattr=+b16b16 -verify-machineinstrs < %s | FileCheck %s
define <vscale x 8 x bfloat> @bfclamp(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b, <vscale x 8 x bfloat> %c){
; CHECK-LABEL: bfclamp:
@@ -11,3 +11,27 @@ define <vscale x 8 x bfloat> @bfclamp(<vscale x 8 x bfloat> %a, <vscale x 8 x bf
}
declare <vscale x 8 x bfloat> @llvm.aarch64.sve.fclamp.nxv8bf16(<vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>)
+
+define { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @test_bfclamp_single_x2_f16(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b, <vscale x 8 x bfloat> %c, <vscale x 8 x bfloat> %d){
+; CHECK-LABEL: test_bfclamp_single_x2_f16:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: bfclamp { z0.h, z1.h }, z2.h, z3.h
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x2.nxv8bf16(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b, <vscale x 8 x bfloat> %c, <vscale x 8 x bfloat> %d)
+ ret { <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } %res
+}
+
+define { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @test_bfclamp_single_x4_f16(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b, <vscale x 8 x bfloat> %c, <vscale x 8 x bfloat> %d, <vscale x 8 x bfloat> %e, <vscale x 8 x bfloat> %f){
+; CHECK-LABEL: test_bfclamp_single_x4_f16:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def $z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def $z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def $z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def $z0_z1_z2_z3
+; CHECK-NEXT: bfclamp { z0.h - z3.h }, z4.h, z5.h
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } @llvm.aarch64.sve.bfclamp.single.x4.nxv8bf16(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b, <vscale x 8 x bfloat> %c, <vscale x 8 x bfloat> %d, <vscale x 8 x bfloat> %e, <vscale x 8 x bfloat> %f)
+ ret { <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat>, <vscale x 8 x bfloat> } %res
+}
``````````
</details>
https://github.com/llvm/llvm-project/pull/88251
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