[llvm-branch-commits] [clang] 9b2488e - Revert "[AArch64][SME] Add intrinsics for multi-vector BFCLAMP (#88251)"

via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Tue May 28 04:07:40 PDT 2024


Author: Lukacma
Date: 2024-05-28T12:07:37+01:00
New Revision: 9b2488e3047e92070a86ecd15128779255e76290

URL: https://github.com/llvm/llvm-project/commit/9b2488e3047e92070a86ecd15128779255e76290
DIFF: https://github.com/llvm/llvm-project/commit/9b2488e3047e92070a86ecd15128779255e76290.diff

LOG: Revert "[AArch64][SME] Add intrinsics for multi-vector BFCLAMP (#88251)"

This reverts commit 12271710da72a11d3cccc958a2824fe269363c34.

Added: 
    

Modified: 
    clang/include/clang/Basic/arm_sve.td
    clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
    llvm/include/llvm/IR/IntrinsicsAArch64.td
    llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
    llvm/test/CodeGen/AArch64/sve2p1-intrinsics-bfclamp.ll

Removed: 
    clang/test/Sema/aarch64-sme2-intrinsics/acle_sme2_b16b16.cpp


################################################################################
diff  --git a/clang/include/clang/Basic/arm_sve.td b/clang/include/clang/Basic/arm_sve.td
index 078ef576342a7..03570f94de666 100644
--- a/clang/include/clang/Basic/arm_sve.td
+++ b/clang/include/clang/Basic/arm_sve.td
@@ -2151,11 +2151,6 @@ let TargetGuard = "sme2" in {
   def SVFCLAMP_X4 : SInst<"svclamp[_single_{d}_x4]",  "44dd",   "hfd",      MergeNone, "aarch64_sve_fclamp_single_x4",  [IsStreaming], []>;
 }
 
-let TargetGuard = "sme2,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 {
 // == ADD (vectors) ==
   def SVADD_SINGLE_X2 : SInst<"svadd[_single_{d}_x2]", "22d", "cUcsUsiUilUl", MergeNone, "aarch64_sve_add_single_x2", [IsStreaming], []>;

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 54b480eec97cd..57ea4d2a1ac47 100644
--- a/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
+++ b/clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_clamp.c
@@ -745,67 +745,3 @@ 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/clang/test/Sema/aarch64-sme2-intrinsics/acle_sme2_b16b16.cpp b/clang/test/Sema/aarch64-sme2-intrinsics/acle_sme2_b16b16.cpp
deleted file mode 100644
index b8f1a4e29c8f1..0000000000000
--- a/clang/test/Sema/aarch64-sme2-intrinsics/acle_sme2_b16b16.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-// REQUIRES: aarch64-registered-target
-
-// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -fsyntax-only -verify -verify-ignore-unexpected=error,note -emit-llvm -o - %s
-
-#include <arm_sme.h>
-
-void test_b16b16(svbool_t pg, uint64_t u64, int64_t i64, const bfloat16_t *const_bf16_ptr, bfloat16_t *bf16_ptr, svbfloat16_t bf16, svbfloat16x2_t bf16x2, svbfloat16x3_t bf16x3, svbfloat16x4_t bf16x4) __arm_streaming
-{
-  // expected-error at +1 {{'svclamp_single_bf16_x2' needs target feature sme2,b16b16}}
-  svclamp_single_bf16_x2(bf16x2, bf16, bf16);
-  // expected-error at +1 {{'svclamp_single_bf16_x4' needs target feature sme2,b16b16}}
-  svclamp_single_bf16_x4(bf16x4, bf16, bf16);
-}
\ No newline at end of file

diff  --git a/llvm/include/llvm/IR/IntrinsicsAArch64.td b/llvm/include/llvm/IR/IntrinsicsAArch64.td
index 57d0dfb698b38..4544cf35fb7b3 100644
--- a/llvm/include/llvm/IR/IntrinsicsAArch64.td
+++ b/llvm/include/llvm/IR/IntrinsicsAArch64.td
@@ -3472,12 +3472,10 @@ 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 660675cf8f389..25f2e4d7c4de6 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -5738,9 +5738,6 @@ 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),
@@ -5762,9 +5759,6 @@ 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 7934f831a7e62..61b67755a3544 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=+sme2 -mattr=+b16b16 -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2p1 -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:
@@ -11,27 +11,3 @@ 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
-}


        


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