[llvm] Add LoopVectorizer support for `llvm.vector.partial.reduce.fadd` (PR #163975)
Sam Tebbs via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 22 02:09:56 PDT 2025
================
@@ -0,0 +1,1101 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -enable-epilogue-vectorization=false -mattr=+sve2p1,+dotprod -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVE1
+; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=false -mattr=+sve2p1,+dotprod -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVED
+; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -vectorizer-maximize-bandwidth -enable-epilogue-vectorization=false -mattr=+sve2p1,+dotprod -S < %s | FileCheck %s --check-prefixes=CHECK-MAXBW
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64-none-unknown-elf"
+
+define float @fdotp(ptr %a, ptr %b) #0 {
+; CHECK-INTERLEAVE1-LABEL: define float @fdotp(
+; CHECK-INTERLEAVE1-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-INTERLEAVE1-NEXT: [[ENTRY:.*:]]
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[TMP0:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[TMP0]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP1:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP2:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD1:%.*]] = load <8 x half>, ptr [[TMP2]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP3:%.*]] = fpext <8 x half> [[WIDE_LOAD1]] to <8 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP4:%.*]] = fmul <8 x float> [[TMP3]], [[TMP1]]
+; CHECK-INTERLEAVE1-NEXT: [[PARTIAL_REDUCE]] = call <4 x float> @llvm.vector.partial.reduce.fadd.v4f32.v8f32(<4 x float> [[VEC_PHI]], <8 x float> [[TMP4]])
+; CHECK-INTERLEAVE1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
+; CHECK-INTERLEAVE1-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-INTERLEAVE1-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-INTERLEAVE1: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP7:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v4f32(float -0.000000e+00, <4 x float> [[PARTIAL_REDUCE]])
+; CHECK-INTERLEAVE1-NEXT: br label %[[FOR_EXIT:.*]]
+; CHECK-INTERLEAVE1: [[FOR_EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: ret float [[TMP7]]
+;
+; CHECK-INTERLEAVED-LABEL: define float @fdotp(
+; CHECK-INTERLEAVED-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-INTERLEAVED-NEXT: [[ENTRY:.*:]]
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI1:%.*]] = phi <4 x float> [ splat (float -0.000000e+00), %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[TMP0:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT: [[TMP1:%.*]] = getelementptr half, ptr [[TMP0]], i32 8
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[TMP0]], align 1
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD2:%.*]] = load <8 x half>, ptr [[TMP1]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP2:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP3:%.*]] = fpext <8 x half> [[WIDE_LOAD2]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT: [[TMP5:%.*]] = getelementptr half, ptr [[TMP4]], i32 8
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD3:%.*]] = load <8 x half>, ptr [[TMP4]], align 1
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD4:%.*]] = load <8 x half>, ptr [[TMP5]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP6:%.*]] = fpext <8 x half> [[WIDE_LOAD3]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP7:%.*]] = fpext <8 x half> [[WIDE_LOAD4]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP8:%.*]] = fmul <8 x float> [[TMP6]], [[TMP2]]
+; CHECK-INTERLEAVED-NEXT: [[TMP9:%.*]] = fmul <8 x float> [[TMP7]], [[TMP3]]
+; CHECK-INTERLEAVED-NEXT: [[PARTIAL_REDUCE]] = call <4 x float> @llvm.vector.partial.reduce.fadd.v4f32.v8f32(<4 x float> [[VEC_PHI]], <8 x float> [[TMP8]])
+; CHECK-INTERLEAVED-NEXT: [[PARTIAL_REDUCE5]] = call <4 x float> @llvm.vector.partial.reduce.fadd.v4f32.v8f32(<4 x float> [[VEC_PHI1]], <8 x float> [[TMP9]])
+; CHECK-INTERLEAVED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-INTERLEAVED-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-INTERLEAVED-NEXT: br i1 [[TMP12]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-INTERLEAVED: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVED-NEXT: [[BIN_RDX:%.*]] = fadd reassoc <4 x float> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
+; CHECK-INTERLEAVED-NEXT: [[TMP11:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v4f32(float -0.000000e+00, <4 x float> [[BIN_RDX]])
+; CHECK-INTERLEAVED-NEXT: br label %[[FOR_EXIT:.*]]
+; CHECK-INTERLEAVED: [[FOR_EXIT]]:
+; CHECK-INTERLEAVED-NEXT: ret float [[TMP11]]
+;
+; CHECK-MAXBW-LABEL: define float @fdotp(
+; CHECK-MAXBW-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-MAXBW-NEXT: [[ENTRY:.*]]:
+; CHECK-MAXBW-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP4]], 3
+; CHECK-MAXBW-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
+; CHECK-MAXBW-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-MAXBW: [[VECTOR_PH]]:
+; CHECK-MAXBW-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP6]], 8
+; CHECK-MAXBW-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-MAXBW-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-MAXBW-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-MAXBW: [[VECTOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x float> [ insertelement (<vscale x 4 x float> splat (float -0.000000e+00), float 0.000000e+00, i32 0), %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[TMP0:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP0]], align 1
+; CHECK-MAXBW-NEXT: [[TMP5:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x float>
+; CHECK-MAXBW-NEXT: [[TMP2:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP2]], align 1
+; CHECK-MAXBW-NEXT: [[TMP7:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD1]] to <vscale x 8 x float>
+; CHECK-MAXBW-NEXT: [[TMP8:%.*]] = fmul <vscale x 8 x float> [[TMP7]], [[TMP5]]
+; CHECK-MAXBW-NEXT: [[PARTIAL_REDUCE]] = call <vscale x 4 x float> @llvm.vector.partial.reduce.fadd.nxv4f32.nxv8f32(<vscale x 4 x float> [[VEC_PHI]], <vscale x 8 x float> [[TMP8]])
+; CHECK-MAXBW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-MAXBW-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-MAXBW: [[MIDDLE_BLOCK]]:
+; CHECK-MAXBW-NEXT: [[TMP10:%.*]] = call reassoc float @llvm.vector.reduce.fadd.nxv4f32(float -0.000000e+00, <vscale x 4 x float> [[PARTIAL_REDUCE]])
+; CHECK-MAXBW-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-MAXBW: [[SCALAR_PH]]:
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP10]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-MAXBW: [[FOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[ACCUM:%.*]] = phi float [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 1
+; CHECK-MAXBW-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-MAXBW-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-MAXBW-NEXT: [[EXT_B:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-MAXBW-NEXT: [[MUL:%.*]] = fmul float [[EXT_B]], [[EXT_A]]
+; CHECK-MAXBW-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-MAXBW-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-MAXBW-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-MAXBW-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-MAXBW: [[FOR_EXIT]]:
+; CHECK-MAXBW-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[TMP10]], %[[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT: ret float [[ADD_LCSSA]]
+;
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
+ %accum = phi float [ 0.0, %entry ], [ %add, %for.body ]
+ %gep.a = getelementptr half, ptr %a, i64 %iv
+ %load.a = load half, ptr %gep.a, align 1
+ %ext.a = fpext half %load.a to float
+ %gep.b = getelementptr half, ptr %b, i64 %iv
+ %load.b = load half, ptr %gep.b, align 1
+ %ext.b = fpext half %load.b to float
+ %mul = fmul float %ext.b, %ext.a
+ %add = fadd reassoc float %mul, %accum
+ %iv.next = add i64 %iv, 1
+ %exitcond.not = icmp eq i64 %iv.next, 1024
+ br i1 %exitcond.not, label %for.exit, label %for.body
+
+for.exit: ; preds = %for.body
+ ret float %add
+}
+
+define double @not_fdotp_different_types(ptr %a, ptr %b) #0 {
+; CHECK-INTERLEAVE1-LABEL: define double @not_fdotp_different_types(
+; CHECK-INTERLEAVE1-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVE1-NEXT: [[ENTRY:.*:]]
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[IV_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[VEC_PHI:%.*]] = phi <8 x double> [ <double 0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[GEP_A]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP1:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x double>
+; CHECK-INTERLEAVE1-NEXT: [[GEP_B:%.*]] = getelementptr float, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD1:%.*]] = load <8 x float>, ptr [[GEP_B]], align 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP3:%.*]] = fpext <8 x float> [[WIDE_LOAD1]] to <8 x double>
+; CHECK-INTERLEAVE1-NEXT: [[TMP4:%.*]] = fmul <8 x double> [[TMP3]], [[TMP1]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP5]] = fadd reassoc <8 x double> [[TMP4]], [[VEC_PHI]]
+; CHECK-INTERLEAVE1-NEXT: [[IV_NEXT]] = add nuw i64 [[IV]], 8
+; CHECK-INTERLEAVE1-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-INTERLEAVE1-NEXT: br i1 [[EXITCOND_NOT]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-INTERLEAVE1: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVE1-NEXT: [[ADD_LCSSA:%.*]] = call reassoc double @llvm.vector.reduce.fadd.v8f64(double -0.000000e+00, <8 x double> [[TMP5]])
+; CHECK-INTERLEAVE1-NEXT: br label %[[FOR_EXIT:.*]]
+; CHECK-INTERLEAVE1: [[FOR_EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: ret double [[ADD_LCSSA]]
+;
+; CHECK-INTERLEAVED-LABEL: define double @not_fdotp_different_types(
+; CHECK-INTERLEAVED-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVED-NEXT: [[ENTRY:.*:]]
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[IV_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI:%.*]] = phi <8 x double> [ <double 0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI1:%.*]] = phi <8 x double> [ splat (double -0.000000e+00), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT: [[TMP1:%.*]] = getelementptr half, ptr [[GEP_A]], i32 8
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[GEP_A]], align 1
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD2:%.*]] = load <8 x half>, ptr [[TMP1]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP2:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x double>
+; CHECK-INTERLEAVED-NEXT: [[TMP3:%.*]] = fpext <8 x half> [[WIDE_LOAD2]] to <8 x double>
+; CHECK-INTERLEAVED-NEXT: [[GEP_B:%.*]] = getelementptr float, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT: [[TMP5:%.*]] = getelementptr float, ptr [[GEP_B]], i32 8
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD3:%.*]] = load <8 x float>, ptr [[GEP_B]], align 2
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD4:%.*]] = load <8 x float>, ptr [[TMP5]], align 2
+; CHECK-INTERLEAVED-NEXT: [[TMP6:%.*]] = fpext <8 x float> [[WIDE_LOAD3]] to <8 x double>
+; CHECK-INTERLEAVED-NEXT: [[TMP7:%.*]] = fpext <8 x float> [[WIDE_LOAD4]] to <8 x double>
+; CHECK-INTERLEAVED-NEXT: [[TMP8:%.*]] = fmul <8 x double> [[TMP6]], [[TMP2]]
+; CHECK-INTERLEAVED-NEXT: [[TMP9:%.*]] = fmul <8 x double> [[TMP7]], [[TMP3]]
+; CHECK-INTERLEAVED-NEXT: [[TMP10]] = fadd reassoc <8 x double> [[TMP8]], [[VEC_PHI]]
+; CHECK-INTERLEAVED-NEXT: [[TMP11]] = fadd reassoc <8 x double> [[TMP9]], [[VEC_PHI1]]
+; CHECK-INTERLEAVED-NEXT: [[IV_NEXT]] = add nuw i64 [[IV]], 16
+; CHECK-INTERLEAVED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-INTERLEAVED-NEXT: br i1 [[EXITCOND_NOT]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-INTERLEAVED: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVED-NEXT: [[BIN_RDX:%.*]] = fadd reassoc <8 x double> [[TMP11]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT: [[ADD_LCSSA:%.*]] = call reassoc double @llvm.vector.reduce.fadd.v8f64(double -0.000000e+00, <8 x double> [[BIN_RDX]])
+; CHECK-INTERLEAVED-NEXT: br label %[[FOR_EXIT:.*]]
+; CHECK-INTERLEAVED: [[FOR_EXIT]]:
+; CHECK-INTERLEAVED-NEXT: ret double [[ADD_LCSSA]]
+;
+; CHECK-MAXBW-LABEL: define double @not_fdotp_different_types(
+; CHECK-MAXBW-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-MAXBW-NEXT: [[ENTRY:.*]]:
+; CHECK-MAXBW-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 3
+; CHECK-MAXBW-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
+; CHECK-MAXBW-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-MAXBW: [[VECTOR_PH]]:
+; CHECK-MAXBW-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 8
+; CHECK-MAXBW-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-MAXBW-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-MAXBW-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-MAXBW: [[VECTOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 8 x double> [ insertelement (<vscale x 8 x double> splat (double -0.000000e+00), double 0.000000e+00, i32 0), %[[VECTOR_PH]] ], [ [[TMP9:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 1
+; CHECK-MAXBW-NEXT: [[TMP5:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x double>
+; CHECK-MAXBW-NEXT: [[TMP6:%.*]] = getelementptr float, ptr [[B]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x float>, ptr [[TMP6]], align 2
+; CHECK-MAXBW-NEXT: [[TMP7:%.*]] = fpext <vscale x 8 x float> [[WIDE_LOAD1]] to <vscale x 8 x double>
+; CHECK-MAXBW-NEXT: [[TMP8:%.*]] = fmul <vscale x 8 x double> [[TMP7]], [[TMP5]]
+; CHECK-MAXBW-NEXT: [[TMP9]] = fadd reassoc <vscale x 8 x double> [[TMP8]], [[VEC_PHI]]
+; CHECK-MAXBW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-MAXBW-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-MAXBW: [[MIDDLE_BLOCK]]:
+; CHECK-MAXBW-NEXT: [[TMP11:%.*]] = call reassoc double @llvm.vector.reduce.fadd.nxv8f64(double -0.000000e+00, <vscale x 8 x double> [[TMP9]])
+; CHECK-MAXBW-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-MAXBW: [[SCALAR_PH]]:
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: [[BC_MERGE_RDX:%.*]] = phi double [ [[TMP11]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-MAXBW: [[FOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[ACCUM:%.*]] = phi double [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 1
+; CHECK-MAXBW-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to double
+; CHECK-MAXBW-NEXT: [[GEP_B:%.*]] = getelementptr float, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_B:%.*]] = load float, ptr [[GEP_B]], align 2
+; CHECK-MAXBW-NEXT: [[EXT_B:%.*]] = fpext float [[LOAD_B]] to double
+; CHECK-MAXBW-NEXT: [[MUL:%.*]] = fmul double [[EXT_B]], [[EXT_A]]
+; CHECK-MAXBW-NEXT: [[ADD]] = fadd reassoc double [[MUL]], [[ACCUM]]
+; CHECK-MAXBW-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-MAXBW-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-MAXBW-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-MAXBW: [[FOR_EXIT]]:
+; CHECK-MAXBW-NEXT: [[ADD_LCSSA:%.*]] = phi double [ [[ADD]], %[[FOR_BODY]] ], [ [[TMP11]], %[[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT: ret double [[ADD_LCSSA]]
+;
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
+ %accum = phi double [ 0.0, %entry ], [ %add, %for.body ]
+ %gep.a = getelementptr half, ptr %a, i64 %iv
+ %load.a = load half, ptr %gep.a, align 1
+ %ext.a = fpext half %load.a to double
+ %gep.b = getelementptr float, ptr %b, i64 %iv
+ %load.b = load float, ptr %gep.b, align 2
+ %ext.b = fpext float %load.b to double
+ %mul = fmul double %ext.b, %ext.a
+ %add = fadd reassoc double %mul, %accum
+ %iv.next = add i64 %iv, 1
+ %exitcond.not = icmp eq i64 %iv.next, 1024
+ br i1 %exitcond.not, label %for.exit, label %for.body
+
+for.exit: ; preds = %for.body
+ ret double %add
+}
+
+define float @not_fdotp_not_phi(ptr %a, ptr %b) #0 {
+; CHECK-INTERLEAVE1-LABEL: define float @not_fdotp_not_phi(
+; CHECK-INTERLEAVE1-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVE1-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVE1-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 3
+; CHECK-INTERLEAVE1-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVE1-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 8
+; CHECK-INTERLEAVE1-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-INTERLEAVE1-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP5:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP6:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP6]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP7:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD1]] to <vscale x 8 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP8:%.*]] = fmul <vscale x 8 x float> [[TMP7]], [[TMP5]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP9:%.*]] = fadd reassoc <vscale x 8 x float> [[TMP8]], [[TMP7]]
+; CHECK-INTERLEAVE1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-INTERLEAVE1: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP11:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-INTERLEAVE1-NEXT: [[TMP12:%.*]] = mul nuw i32 [[TMP11]], 8
+; CHECK-INTERLEAVE1-NEXT: [[TMP13:%.*]] = sub i32 [[TMP12]], 1
+; CHECK-INTERLEAVE1-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 8 x float> [[TMP9]], i32 [[TMP13]]
+; CHECK-INTERLEAVE1-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVE1: [[SCALAR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi float [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
+; CHECK-INTERLEAVE1-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[FOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[ACCUM:%.*]] = phi float [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVE1-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[EXT_B:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-INTERLEAVE1-NEXT: [[MUL:%.*]] = fmul float [[EXT_B]], [[EXT_A]]
+; CHECK-INTERLEAVE1-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[EXT_B]]
+; CHECK-INTERLEAVE1-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-INTERLEAVE1-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-INTERLEAVE1-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-INTERLEAVE1: [[FOR_EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVE1-NEXT: ret float [[ADD_LCSSA]]
+;
+; CHECK-INTERLEAVED-LABEL: define float @not_fdotp_not_phi(
+; CHECK-INTERLEAVED-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVED-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVED-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 4
+; CHECK-INTERLEAVED-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 16
+; CHECK-INTERLEAVED-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-INTERLEAVED-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT: [[TMP6:%.*]] = shl nuw i64 [[TMP5]], 3
+; CHECK-INTERLEAVED-NEXT: [[TMP7:%.*]] = getelementptr half, ptr [[TMP4]], i64 [[TMP6]]
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP7]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP8:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP9:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT: [[TMP11:%.*]] = shl nuw i64 [[TMP10]], 3
+; CHECK-INTERLEAVED-NEXT: [[TMP12:%.*]] = getelementptr half, ptr [[TMP9]], i64 [[TMP11]]
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP12]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP13:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD1]] to <vscale x 8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP14:%.*]] = fmul <vscale x 8 x float> [[TMP13]], [[TMP8]]
+; CHECK-INTERLEAVED-NEXT: [[TMP15:%.*]] = fadd reassoc <vscale x 8 x float> [[TMP14]], [[TMP13]]
+; CHECK-INTERLEAVED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-INTERLEAVED-NEXT: [[TMP16:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[TMP16]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-INTERLEAVED: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVED-NEXT: [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-INTERLEAVED-NEXT: [[TMP18:%.*]] = mul nuw i32 [[TMP17]], 8
+; CHECK-INTERLEAVED-NEXT: [[TMP19:%.*]] = sub i32 [[TMP18]], 1
+; CHECK-INTERLEAVED-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 8 x float> [[TMP15]], i32 [[TMP19]]
+; CHECK-INTERLEAVED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVED: [[SCALAR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; CHECK-INTERLEAVED-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi float [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
+; CHECK-INTERLEAVED-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[FOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[ACCUM:%.*]] = phi float [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 1
+; CHECK-INTERLEAVED-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVED-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-INTERLEAVED-NEXT: [[EXT_B:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-INTERLEAVED-NEXT: [[MUL:%.*]] = fmul float [[EXT_B]], [[EXT_A]]
+; CHECK-INTERLEAVED-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[EXT_B]]
+; CHECK-INTERLEAVED-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-INTERLEAVED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-INTERLEAVED-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-INTERLEAVED: [[FOR_EXIT]]:
+; CHECK-INTERLEAVED-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVED-NEXT: ret float [[ADD_LCSSA]]
+;
+; CHECK-MAXBW-LABEL: define float @not_fdotp_not_phi(
+; CHECK-MAXBW-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-MAXBW-NEXT: [[ENTRY:.*]]:
+; CHECK-MAXBW-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 3
+; CHECK-MAXBW-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
+; CHECK-MAXBW-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-MAXBW: [[VECTOR_PH]]:
+; CHECK-MAXBW-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 8
+; CHECK-MAXBW-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-MAXBW-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-MAXBW-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-MAXBW: [[VECTOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 1
+; CHECK-MAXBW-NEXT: [[TMP5:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x float>
+; CHECK-MAXBW-NEXT: [[TMP6:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP6]], align 1
+; CHECK-MAXBW-NEXT: [[TMP7:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD1]] to <vscale x 8 x float>
+; CHECK-MAXBW-NEXT: [[TMP8:%.*]] = fmul <vscale x 8 x float> [[TMP7]], [[TMP5]]
+; CHECK-MAXBW-NEXT: [[TMP9:%.*]] = fadd reassoc <vscale x 8 x float> [[TMP8]], [[TMP7]]
+; CHECK-MAXBW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-MAXBW-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-MAXBW: [[MIDDLE_BLOCK]]:
+; CHECK-MAXBW-NEXT: [[TMP11:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-MAXBW-NEXT: [[TMP12:%.*]] = mul nuw i32 [[TMP11]], 8
+; CHECK-MAXBW-NEXT: [[TMP13:%.*]] = sub i32 [[TMP12]], 1
+; CHECK-MAXBW-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 8 x float> [[TMP9]], i32 [[TMP13]]
+; CHECK-MAXBW-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-MAXBW: [[SCALAR_PH]]:
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi float [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
+; CHECK-MAXBW-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-MAXBW: [[FOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[ACCUM:%.*]] = phi float [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[GEP_A:%.*]] = getelementptr half, ptr [[A]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 1
+; CHECK-MAXBW-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-MAXBW-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-MAXBW-NEXT: [[EXT_B:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-MAXBW-NEXT: [[MUL:%.*]] = fmul float [[EXT_B]], [[EXT_A]]
+; CHECK-MAXBW-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[EXT_B]]
+; CHECK-MAXBW-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-MAXBW-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-MAXBW-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-MAXBW: [[FOR_EXIT]]:
+; CHECK-MAXBW-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT: ret float [[ADD_LCSSA]]
+;
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
+ %accum = phi float [ 0.0, %entry ], [ %add, %for.body ]
+ %gep.a = getelementptr half, ptr %a, i64 %iv
+ %load.a = load half, ptr %gep.a, align 1
+ %ext.a = fpext half %load.a to float
+ %gep.b = getelementptr half, ptr %b, i64 %iv
+ %load.b = load half, ptr %gep.b, align 1
+ %ext.b = fpext half %load.b to float
+ %mul = fmul float %ext.b, %ext.a
+ %add = fadd reassoc float %mul, %ext.b
+ %iv.next = add i64 %iv, 1
+ %exitcond.not = icmp eq i64 %iv.next, 1024
+ br i1 %exitcond.not, label %for.exit, label %for.body
+
+for.exit: ; preds = %for.body
+ ret float %add
+}
+
+define void @not_fdotp_not_phi2(ptr %matrix, i32 %n) #0 {
+; CHECK-INTERLEAVE1-LABEL: define void @not_fdotp_not_phi2(
+; CHECK-INTERLEAVE1-SAME: ptr [[MATRIX:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVE1-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVE1-NEXT: [[CMP:%.*]] = icmp sgt i32 [[N]], 0
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP]], label %[[FOR_PREHEADER:.*]], label %[[EXIT:.*]]
+; CHECK-INTERLEAVE1: [[FOR_PREHEADER]]:
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_A:%.*]] = load half, ptr null, align 1
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_A1:%.*]] = load half, ptr inttoptr (i64 1 to ptr), align 1
+; CHECK-INTERLEAVE1-NEXT: [[A_EXT:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVE1-NEXT: [[A_EXT1:%.*]] = fpext half [[LOAD_A1]] to float
+; CHECK-INTERLEAVE1-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
+; CHECK-INTERLEAVE1-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 4
+; CHECK-INTERLEAVE1-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 4
+; CHECK-INTERLEAVE1-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP1:%.*]] = trunc i64 [[N_VEC]] to i32
+; CHECK-INTERLEAVE1-NEXT: [[TMP2:%.*]] = mul i64 [[N_VEC]], 32
+; CHECK-INTERLEAVE1-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP2]]
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[A_EXT]], i64 0
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x float> poison, float [[A_EXT1]], i64 0
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT1]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP37:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 32
+; CHECK-INTERLEAVE1-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
+; CHECK-INTERLEAVE1-NEXT: [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 32
+; CHECK-INTERLEAVE1-NEXT: [[TMP6:%.*]] = add i64 [[OFFSET_IDX]], 64
+; CHECK-INTERLEAVE1-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 96
+; CHECK-INTERLEAVE1-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP4]]
+; CHECK-INTERLEAVE1-NEXT: [[NEXT_GEP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP5]]
+; CHECK-INTERLEAVE1-NEXT: [[NEXT_GEP4:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP6]]
+; CHECK-INTERLEAVE1-NEXT: [[NEXT_GEP5:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP7]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP8:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP9:%.*]] = getelementptr half, ptr [[NEXT_GEP3]], i64 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP10:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP11:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP12:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP13:%.*]] = getelementptr half, ptr [[NEXT_GEP3]], i64 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP14:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP15:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP16:%.*]] = load half, ptr [[TMP8]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP17:%.*]] = load half, ptr [[TMP9]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP18:%.*]] = load half, ptr [[TMP10]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP19:%.*]] = load half, ptr [[TMP11]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP20:%.*]] = insertelement <4 x half> poison, half [[TMP16]], i32 0
+; CHECK-INTERLEAVE1-NEXT: [[TMP21:%.*]] = insertelement <4 x half> [[TMP20]], half [[TMP17]], i32 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP22:%.*]] = insertelement <4 x half> [[TMP21]], half [[TMP18]], i32 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP23:%.*]] = insertelement <4 x half> [[TMP22]], half [[TMP19]], i32 3
+; CHECK-INTERLEAVE1-NEXT: [[TMP24:%.*]] = fpext <4 x half> [[TMP23]] to <4 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP25:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[TMP24]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP26:%.*]] = fadd reassoc <4 x float> [[TMP25]], [[VEC_PHI]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP27:%.*]] = load half, ptr [[TMP12]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP28:%.*]] = load half, ptr [[TMP13]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP29:%.*]] = load half, ptr [[TMP14]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP30:%.*]] = load half, ptr [[TMP15]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP31:%.*]] = insertelement <4 x half> poison, half [[TMP27]], i32 0
+; CHECK-INTERLEAVE1-NEXT: [[TMP32:%.*]] = insertelement <4 x half> [[TMP31]], half [[TMP28]], i32 1
+; CHECK-INTERLEAVE1-NEXT: [[TMP33:%.*]] = insertelement <4 x half> [[TMP32]], half [[TMP29]], i32 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP34:%.*]] = insertelement <4 x half> [[TMP33]], half [[TMP30]], i32 3
+; CHECK-INTERLEAVE1-NEXT: [[TMP35:%.*]] = fpext <4 x half> [[TMP34]] to <4 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP36:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT2]], [[TMP35]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP37]] = fadd reassoc <4 x float> [[TMP36]], [[TMP26]]
+; CHECK-INTERLEAVE1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
+; CHECK-INTERLEAVE1-NEXT: [[TMP38:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[TMP38]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-INTERLEAVE1: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP39:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v4f32(float -0.000000e+00, <4 x float> [[TMP37]])
+; CHECK-INTERLEAVE1-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVE1: [[SCALAR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP1]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVE1-NEXT: [[BC_RESUME_VAL6:%.*]] = phi ptr [ [[TMP3]], %[[MIDDLE_BLOCK]] ], [ [[MATRIX]], %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVE1-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP39]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVE1-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[FOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVE1-NEXT: [[PTR:%.*]] = phi ptr [ [[SCEVGEP:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL6]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVE1-NEXT: [[ACCUM:%.*]] = phi float [ [[ADD_1:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVE1-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[PTR]], i64 1
+; CHECK-INTERLEAVE1-NEXT: [[GEP_B1:%.*]] = getelementptr half, ptr [[PTR]], i64 2
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[B_EXT:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-INTERLEAVE1-NEXT: [[MUL:%.*]] = fmul float [[A_EXT]], [[B_EXT]]
+; CHECK-INTERLEAVE1-NEXT: [[ADD:%.*]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_B1:%.*]] = load half, ptr [[GEP_B1]], align 1
+; CHECK-INTERLEAVE1-NEXT: [[B_EXT1:%.*]] = fpext half [[LOAD_B1]] to float
+; CHECK-INTERLEAVE1-NEXT: [[MUL_1:%.*]] = fmul float [[A_EXT1]], [[B_EXT1]]
+; CHECK-INTERLEAVE1-NEXT: [[ADD_1]] = fadd reassoc float [[MUL_1]], [[ADD]]
+; CHECK-INTERLEAVE1-NEXT: [[SCEVGEP]] = getelementptr half, ptr [[PTR]], i64 16
+; CHECK-INTERLEAVE1-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-INTERLEAVE1-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IV_NEXT]], [[N]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-INTERLEAVE1: [[FOR_EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: [[ADD_FLOAT:%.*]] = phi float [ [[ADD_1]], %[[FOR_BODY]] ], [ [[TMP39]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVE1-NEXT: br label %[[EXIT]]
+; CHECK-INTERLEAVE1: [[EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_FLOAT]], %[[FOR_EXIT]] ]
+; CHECK-INTERLEAVE1-NEXT: store float [[RESULT]], ptr [[MATRIX]], align 4
+; CHECK-INTERLEAVE1-NEXT: ret void
+;
+; CHECK-INTERLEAVED-LABEL: define void @not_fdotp_not_phi2(
+; CHECK-INTERLEAVED-SAME: ptr [[MATRIX:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVED-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVED-NEXT: [[CMP:%.*]] = icmp sgt i32 [[N]], 0
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP]], label %[[FOR_PREHEADER:.*]], label %[[EXIT:.*]]
+; CHECK-INTERLEAVED: [[FOR_PREHEADER]]:
+; CHECK-INTERLEAVED-NEXT: [[LOAD_A:%.*]] = load half, ptr null, align 1
+; CHECK-INTERLEAVED-NEXT: [[LOAD_A1:%.*]] = load half, ptr inttoptr (i64 1 to ptr), align 1
+; CHECK-INTERLEAVED-NEXT: [[A_EXT:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVED-NEXT: [[A_EXT1:%.*]] = fpext half [[LOAD_A1]] to float
+; CHECK-INTERLEAVED-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
+; CHECK-INTERLEAVED-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 8
+; CHECK-INTERLEAVED-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 8
+; CHECK-INTERLEAVED-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]
+; CHECK-INTERLEAVED-NEXT: [[TMP1:%.*]] = trunc i64 [[N_VEC]] to i32
+; CHECK-INTERLEAVED-NEXT: [[TMP2:%.*]] = mul i64 [[N_VEC]], 32
+; CHECK-INTERLEAVED-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP2]]
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[A_EXT]], i64 0
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x float> poison, float [[A_EXT1]], i64 0
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT1]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP70:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI3:%.*]] = phi <4 x float> [ splat (float -0.000000e+00), %[[VECTOR_PH]] ], [ [[TMP71:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 32
+; CHECK-INTERLEAVED-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
+; CHECK-INTERLEAVED-NEXT: [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 32
+; CHECK-INTERLEAVED-NEXT: [[TMP6:%.*]] = add i64 [[OFFSET_IDX]], 64
+; CHECK-INTERLEAVED-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 96
+; CHECK-INTERLEAVED-NEXT: [[TMP8:%.*]] = add i64 [[OFFSET_IDX]], 128
+; CHECK-INTERLEAVED-NEXT: [[TMP9:%.*]] = add i64 [[OFFSET_IDX]], 160
+; CHECK-INTERLEAVED-NEXT: [[TMP10:%.*]] = add i64 [[OFFSET_IDX]], 192
+; CHECK-INTERLEAVED-NEXT: [[TMP11:%.*]] = add i64 [[OFFSET_IDX]], 224
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP4]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP4:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP5]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP5:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP6]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP6:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP7]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP7:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP8]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP8:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP9]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP9:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP10]]
+; CHECK-INTERLEAVED-NEXT: [[NEXT_GEP10:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP11]]
+; CHECK-INTERLEAVED-NEXT: [[TMP12:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP13:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP14:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP15:%.*]] = getelementptr half, ptr [[NEXT_GEP6]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP16:%.*]] = getelementptr half, ptr [[NEXT_GEP7]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP17:%.*]] = getelementptr half, ptr [[NEXT_GEP8]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP18:%.*]] = getelementptr half, ptr [[NEXT_GEP9]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP19:%.*]] = getelementptr half, ptr [[NEXT_GEP10]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[TMP20:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP21:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP22:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP23:%.*]] = getelementptr half, ptr [[NEXT_GEP6]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP24:%.*]] = getelementptr half, ptr [[NEXT_GEP7]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP25:%.*]] = getelementptr half, ptr [[NEXT_GEP8]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP26:%.*]] = getelementptr half, ptr [[NEXT_GEP9]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP27:%.*]] = getelementptr half, ptr [[NEXT_GEP10]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[TMP28:%.*]] = load half, ptr [[TMP12]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP29:%.*]] = load half, ptr [[TMP13]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP30:%.*]] = load half, ptr [[TMP14]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP31:%.*]] = load half, ptr [[TMP15]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP32:%.*]] = insertelement <4 x half> poison, half [[TMP28]], i32 0
+; CHECK-INTERLEAVED-NEXT: [[TMP33:%.*]] = insertelement <4 x half> [[TMP32]], half [[TMP29]], i32 1
+; CHECK-INTERLEAVED-NEXT: [[TMP34:%.*]] = insertelement <4 x half> [[TMP33]], half [[TMP30]], i32 2
+; CHECK-INTERLEAVED-NEXT: [[TMP35:%.*]] = insertelement <4 x half> [[TMP34]], half [[TMP31]], i32 3
+; CHECK-INTERLEAVED-NEXT: [[TMP36:%.*]] = load half, ptr [[TMP16]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP37:%.*]] = load half, ptr [[TMP17]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP38:%.*]] = load half, ptr [[TMP18]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP39:%.*]] = load half, ptr [[TMP19]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP40:%.*]] = insertelement <4 x half> poison, half [[TMP36]], i32 0
+; CHECK-INTERLEAVED-NEXT: [[TMP41:%.*]] = insertelement <4 x half> [[TMP40]], half [[TMP37]], i32 1
+; CHECK-INTERLEAVED-NEXT: [[TMP42:%.*]] = insertelement <4 x half> [[TMP41]], half [[TMP38]], i32 2
+; CHECK-INTERLEAVED-NEXT: [[TMP43:%.*]] = insertelement <4 x half> [[TMP42]], half [[TMP39]], i32 3
+; CHECK-INTERLEAVED-NEXT: [[TMP44:%.*]] = fpext <4 x half> [[TMP35]] to <4 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP45:%.*]] = fpext <4 x half> [[TMP43]] to <4 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP46:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[TMP44]]
+; CHECK-INTERLEAVED-NEXT: [[TMP47:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[TMP45]]
+; CHECK-INTERLEAVED-NEXT: [[TMP48:%.*]] = fadd reassoc <4 x float> [[TMP46]], [[VEC_PHI]]
+; CHECK-INTERLEAVED-NEXT: [[TMP49:%.*]] = fadd reassoc <4 x float> [[TMP47]], [[VEC_PHI3]]
+; CHECK-INTERLEAVED-NEXT: [[TMP50:%.*]] = load half, ptr [[TMP20]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP51:%.*]] = load half, ptr [[TMP21]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP52:%.*]] = load half, ptr [[TMP22]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP53:%.*]] = load half, ptr [[TMP23]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP54:%.*]] = insertelement <4 x half> poison, half [[TMP50]], i32 0
+; CHECK-INTERLEAVED-NEXT: [[TMP55:%.*]] = insertelement <4 x half> [[TMP54]], half [[TMP51]], i32 1
+; CHECK-INTERLEAVED-NEXT: [[TMP56:%.*]] = insertelement <4 x half> [[TMP55]], half [[TMP52]], i32 2
+; CHECK-INTERLEAVED-NEXT: [[TMP57:%.*]] = insertelement <4 x half> [[TMP56]], half [[TMP53]], i32 3
+; CHECK-INTERLEAVED-NEXT: [[TMP58:%.*]] = load half, ptr [[TMP24]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP59:%.*]] = load half, ptr [[TMP25]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP60:%.*]] = load half, ptr [[TMP26]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP61:%.*]] = load half, ptr [[TMP27]], align 1
+; CHECK-INTERLEAVED-NEXT: [[TMP62:%.*]] = insertelement <4 x half> poison, half [[TMP58]], i32 0
+; CHECK-INTERLEAVED-NEXT: [[TMP63:%.*]] = insertelement <4 x half> [[TMP62]], half [[TMP59]], i32 1
+; CHECK-INTERLEAVED-NEXT: [[TMP64:%.*]] = insertelement <4 x half> [[TMP63]], half [[TMP60]], i32 2
+; CHECK-INTERLEAVED-NEXT: [[TMP65:%.*]] = insertelement <4 x half> [[TMP64]], half [[TMP61]], i32 3
+; CHECK-INTERLEAVED-NEXT: [[TMP66:%.*]] = fpext <4 x half> [[TMP57]] to <4 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP67:%.*]] = fpext <4 x half> [[TMP65]] to <4 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP68:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT2]], [[TMP66]]
+; CHECK-INTERLEAVED-NEXT: [[TMP69:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT2]], [[TMP67]]
+; CHECK-INTERLEAVED-NEXT: [[TMP70]] = fadd reassoc <4 x float> [[TMP68]], [[TMP48]]
+; CHECK-INTERLEAVED-NEXT: [[TMP71]] = fadd reassoc <4 x float> [[TMP69]], [[TMP49]]
+; CHECK-INTERLEAVED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
+; CHECK-INTERLEAVED-NEXT: [[TMP72:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[TMP72]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-INTERLEAVED: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVED-NEXT: [[BIN_RDX:%.*]] = fadd reassoc <4 x float> [[TMP71]], [[TMP70]]
+; CHECK-INTERLEAVED-NEXT: [[TMP73:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v4f32(float -0.000000e+00, <4 x float> [[BIN_RDX]])
+; CHECK-INTERLEAVED-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVED: [[SCALAR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP1]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVED-NEXT: [[BC_RESUME_VAL11:%.*]] = phi ptr [ [[TMP3]], %[[MIDDLE_BLOCK]] ], [ [[MATRIX]], %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVED-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP73]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PREHEADER]] ]
+; CHECK-INTERLEAVED-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[FOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVED-NEXT: [[PTR:%.*]] = phi ptr [ [[SCEVGEP:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL11]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVED-NEXT: [[ACCUM:%.*]] = phi float [ [[ADD_1:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
+; CHECK-INTERLEAVED-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[PTR]], i64 1
+; CHECK-INTERLEAVED-NEXT: [[GEP_B1:%.*]] = getelementptr half, ptr [[PTR]], i64 2
+; CHECK-INTERLEAVED-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-INTERLEAVED-NEXT: [[B_EXT:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-INTERLEAVED-NEXT: [[MUL:%.*]] = fmul float [[A_EXT]], [[B_EXT]]
+; CHECK-INTERLEAVED-NEXT: [[ADD:%.*]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-INTERLEAVED-NEXT: [[LOAD_B1:%.*]] = load half, ptr [[GEP_B1]], align 1
+; CHECK-INTERLEAVED-NEXT: [[B_EXT1:%.*]] = fpext half [[LOAD_B1]] to float
+; CHECK-INTERLEAVED-NEXT: [[MUL_1:%.*]] = fmul float [[A_EXT1]], [[B_EXT1]]
+; CHECK-INTERLEAVED-NEXT: [[ADD_1]] = fadd reassoc float [[MUL_1]], [[ADD]]
+; CHECK-INTERLEAVED-NEXT: [[SCEVGEP]] = getelementptr half, ptr [[PTR]], i64 16
+; CHECK-INTERLEAVED-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-INTERLEAVED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IV_NEXT]], [[N]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-INTERLEAVED: [[FOR_EXIT]]:
+; CHECK-INTERLEAVED-NEXT: [[ADD_FLOAT:%.*]] = phi float [ [[ADD_1]], %[[FOR_BODY]] ], [ [[TMP73]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVED-NEXT: br label %[[EXIT]]
+; CHECK-INTERLEAVED: [[EXIT]]:
+; CHECK-INTERLEAVED-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_FLOAT]], %[[FOR_EXIT]] ]
+; CHECK-INTERLEAVED-NEXT: store float [[RESULT]], ptr [[MATRIX]], align 4
+; CHECK-INTERLEAVED-NEXT: ret void
+;
+; CHECK-MAXBW-LABEL: define void @not_fdotp_not_phi2(
+; CHECK-MAXBW-SAME: ptr [[MATRIX:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-MAXBW-NEXT: [[ENTRY:.*]]:
+; CHECK-MAXBW-NEXT: [[CMP:%.*]] = icmp sgt i32 [[N]], 0
+; CHECK-MAXBW-NEXT: br i1 [[CMP]], label %[[FOR_PREHEADER:.*]], label %[[EXIT:.*]]
+; CHECK-MAXBW: [[FOR_PREHEADER]]:
+; CHECK-MAXBW-NEXT: [[LOAD_A:%.*]] = load half, ptr null, align 1
+; CHECK-MAXBW-NEXT: [[LOAD_A1:%.*]] = load half, ptr inttoptr (i64 1 to ptr), align 1
+; CHECK-MAXBW-NEXT: [[A_EXT:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-MAXBW-NEXT: [[A_EXT1:%.*]] = fpext half [[LOAD_A1]] to float
+; CHECK-MAXBW-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
+; CHECK-MAXBW-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 4
+; CHECK-MAXBW-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-MAXBW: [[VECTOR_PH]]:
+; CHECK-MAXBW-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 4
+; CHECK-MAXBW-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]
+; CHECK-MAXBW-NEXT: [[TMP1:%.*]] = trunc i64 [[N_VEC]] to i32
+; CHECK-MAXBW-NEXT: [[TMP2:%.*]] = mul i64 [[N_VEC]], 32
+; CHECK-MAXBW-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP2]]
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[A_EXT]], i64 0
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x float> poison, float [[A_EXT1]], i64 0
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT1]], <4 x float> poison, <4 x i32> zeroinitializer
+; CHECK-MAXBW-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-MAXBW: [[VECTOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP37:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 32
+; CHECK-MAXBW-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
+; CHECK-MAXBW-NEXT: [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 32
+; CHECK-MAXBW-NEXT: [[TMP6:%.*]] = add i64 [[OFFSET_IDX]], 64
+; CHECK-MAXBW-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 96
+; CHECK-MAXBW-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP4]]
+; CHECK-MAXBW-NEXT: [[NEXT_GEP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP5]]
+; CHECK-MAXBW-NEXT: [[NEXT_GEP4:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP6]]
+; CHECK-MAXBW-NEXT: [[NEXT_GEP5:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP7]]
+; CHECK-MAXBW-NEXT: [[TMP8:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 1
+; CHECK-MAXBW-NEXT: [[TMP9:%.*]] = getelementptr half, ptr [[NEXT_GEP3]], i64 1
+; CHECK-MAXBW-NEXT: [[TMP10:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 1
+; CHECK-MAXBW-NEXT: [[TMP11:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 1
+; CHECK-MAXBW-NEXT: [[TMP12:%.*]] = getelementptr half, ptr [[NEXT_GEP]], i64 2
+; CHECK-MAXBW-NEXT: [[TMP13:%.*]] = getelementptr half, ptr [[NEXT_GEP3]], i64 2
+; CHECK-MAXBW-NEXT: [[TMP14:%.*]] = getelementptr half, ptr [[NEXT_GEP4]], i64 2
+; CHECK-MAXBW-NEXT: [[TMP15:%.*]] = getelementptr half, ptr [[NEXT_GEP5]], i64 2
+; CHECK-MAXBW-NEXT: [[TMP16:%.*]] = load half, ptr [[TMP8]], align 1
+; CHECK-MAXBW-NEXT: [[TMP17:%.*]] = load half, ptr [[TMP9]], align 1
+; CHECK-MAXBW-NEXT: [[TMP18:%.*]] = load half, ptr [[TMP10]], align 1
+; CHECK-MAXBW-NEXT: [[TMP19:%.*]] = load half, ptr [[TMP11]], align 1
+; CHECK-MAXBW-NEXT: [[TMP20:%.*]] = insertelement <4 x half> poison, half [[TMP16]], i32 0
+; CHECK-MAXBW-NEXT: [[TMP21:%.*]] = insertelement <4 x half> [[TMP20]], half [[TMP17]], i32 1
+; CHECK-MAXBW-NEXT: [[TMP22:%.*]] = insertelement <4 x half> [[TMP21]], half [[TMP18]], i32 2
+; CHECK-MAXBW-NEXT: [[TMP23:%.*]] = insertelement <4 x half> [[TMP22]], half [[TMP19]], i32 3
+; CHECK-MAXBW-NEXT: [[TMP24:%.*]] = fpext <4 x half> [[TMP23]] to <4 x float>
+; CHECK-MAXBW-NEXT: [[TMP25:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[TMP24]]
+; CHECK-MAXBW-NEXT: [[TMP26:%.*]] = fadd reassoc <4 x float> [[TMP25]], [[VEC_PHI]]
+; CHECK-MAXBW-NEXT: [[TMP27:%.*]] = load half, ptr [[TMP12]], align 1
+; CHECK-MAXBW-NEXT: [[TMP28:%.*]] = load half, ptr [[TMP13]], align 1
+; CHECK-MAXBW-NEXT: [[TMP29:%.*]] = load half, ptr [[TMP14]], align 1
+; CHECK-MAXBW-NEXT: [[TMP30:%.*]] = load half, ptr [[TMP15]], align 1
+; CHECK-MAXBW-NEXT: [[TMP31:%.*]] = insertelement <4 x half> poison, half [[TMP27]], i32 0
+; CHECK-MAXBW-NEXT: [[TMP32:%.*]] = insertelement <4 x half> [[TMP31]], half [[TMP28]], i32 1
+; CHECK-MAXBW-NEXT: [[TMP33:%.*]] = insertelement <4 x half> [[TMP32]], half [[TMP29]], i32 2
+; CHECK-MAXBW-NEXT: [[TMP34:%.*]] = insertelement <4 x half> [[TMP33]], half [[TMP30]], i32 3
+; CHECK-MAXBW-NEXT: [[TMP35:%.*]] = fpext <4 x half> [[TMP34]] to <4 x float>
+; CHECK-MAXBW-NEXT: [[TMP36:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT2]], [[TMP35]]
+; CHECK-MAXBW-NEXT: [[TMP37]] = fadd reassoc <4 x float> [[TMP36]], [[TMP26]]
+; CHECK-MAXBW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
+; CHECK-MAXBW-NEXT: [[TMP38:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[TMP38]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-MAXBW: [[MIDDLE_BLOCK]]:
+; CHECK-MAXBW-NEXT: [[TMP39:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v4f32(float -0.000000e+00, <4 x float> [[TMP37]])
+; CHECK-MAXBW-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_N]], label %[[FOR_EXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-MAXBW: [[SCALAR_PH]]:
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP1]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PREHEADER]] ]
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL6:%.*]] = phi ptr [ [[TMP3]], %[[MIDDLE_BLOCK]] ], [ [[MATRIX]], %[[FOR_PREHEADER]] ]
+; CHECK-MAXBW-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP39]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PREHEADER]] ]
+; CHECK-MAXBW-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-MAXBW: [[FOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
+; CHECK-MAXBW-NEXT: [[PTR:%.*]] = phi ptr [ [[SCEVGEP:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL6]], %[[SCALAR_PH]] ]
+; CHECK-MAXBW-NEXT: [[ACCUM:%.*]] = phi float [ [[ADD_1:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
+; CHECK-MAXBW-NEXT: [[GEP_B:%.*]] = getelementptr half, ptr [[PTR]], i64 1
+; CHECK-MAXBW-NEXT: [[GEP_B1:%.*]] = getelementptr half, ptr [[PTR]], i64 2
+; CHECK-MAXBW-NEXT: [[LOAD_B:%.*]] = load half, ptr [[GEP_B]], align 1
+; CHECK-MAXBW-NEXT: [[B_EXT:%.*]] = fpext half [[LOAD_B]] to float
+; CHECK-MAXBW-NEXT: [[MUL:%.*]] = fmul float [[A_EXT]], [[B_EXT]]
+; CHECK-MAXBW-NEXT: [[ADD:%.*]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-MAXBW-NEXT: [[LOAD_B1:%.*]] = load half, ptr [[GEP_B1]], align 1
+; CHECK-MAXBW-NEXT: [[B_EXT1:%.*]] = fpext half [[LOAD_B1]] to float
+; CHECK-MAXBW-NEXT: [[MUL_1:%.*]] = fmul float [[A_EXT1]], [[B_EXT1]]
+; CHECK-MAXBW-NEXT: [[ADD_1]] = fadd reassoc float [[MUL_1]], [[ADD]]
+; CHECK-MAXBW-NEXT: [[SCEVGEP]] = getelementptr half, ptr [[PTR]], i64 16
+; CHECK-MAXBW-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-MAXBW-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IV_NEXT]], [[N]]
+; CHECK-MAXBW-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-MAXBW: [[FOR_EXIT]]:
+; CHECK-MAXBW-NEXT: [[ADD_FLOAT:%.*]] = phi float [ [[ADD_1]], %[[FOR_BODY]] ], [ [[TMP39]], %[[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT: br label %[[EXIT]]
+; CHECK-MAXBW: [[EXIT]]:
+; CHECK-MAXBW-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_FLOAT]], %[[FOR_EXIT]] ]
+; CHECK-MAXBW-NEXT: store float [[RESULT]], ptr [[MATRIX]], align 4
+; CHECK-MAXBW-NEXT: ret void
+;
+entry:
+ %cmp = icmp sgt i32 %n, 0
+ br i1 %cmp, label %for.preheader, label %exit
+
+for.preheader: ; preds = %entry
+ %load.a = load half, ptr inttoptr (i64 0 to ptr), align 1
+ %load.a1 = load half, ptr inttoptr (i64 1 to ptr), align 1
+ %a.ext = fpext half %load.a to float
+ %a.ext1 = fpext half %load.a1 to float
+ br label %for.body
+
+for.body: ; preds = %for.preheader, %for.body
+ %iv = phi i32 [ %iv.next, %for.body ], [ 0, %for.preheader ]
+ %ptr = phi ptr [ %scevgep, %for.body ], [ %matrix, %for.preheader ]
+ %accum = phi float [ %add.1, %for.body ], [ 0.0, %for.preheader ]
+ %gep.b = getelementptr half, ptr %ptr, i64 1
+ %gep.b1 = getelementptr half, ptr %ptr, i64 2
+ %load.b = load half, ptr %gep.b, align 1
+ %b.ext = fpext half %load.b to float
+ %mul = fmul float %a.ext, %b.ext
+ %add = fadd reassoc float %mul, %accum
+ %load.b1 = load half, ptr %gep.b1, align 1
+ %b.ext1 = fpext half %load.b1 to float
+ %mul.1 = fmul float %a.ext1, %b.ext1
+ %add.1 = fadd reassoc float %mul.1, %add
+ %scevgep = getelementptr half, ptr %ptr, i64 16
+ %iv.next = add nuw nsw i32 %iv, 1
+ %exitcond.not = icmp eq i32 %iv.next, %n
+ br i1 %exitcond.not, label %for.exit, label %for.body
+
+for.exit: ; preds = %for.body
+ %add.float = phi float [ %add.1, %for.body ]
+ br label %exit
+
+exit: ; preds = %for.exit, %entry
+ %result = phi float [ 0.000000e+00, %entry ], [ %add.float, %for.exit ]
+ store float %result, ptr %matrix, align 4
+ ret void
+}
+
+define float @not_fdotp_ext_outside_plan(ptr %a, half %b, i64 %n) #0 {
+; CHECK-INTERLEAVE1-LABEL: define float @not_fdotp_ext_outside_plan(
+; CHECK-INTERLEAVE1-SAME: ptr [[A:%.*]], half [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVE1-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVE1-NEXT: [[CMP:%.*]] = icmp eq i64 [[N]], 0
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP]], label %[[EXIT:.*]], label %[[FOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[FOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[EXT_B:%.*]] = fpext half [[B]] to float
+; CHECK-INTERLEAVE1-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 8
+; CHECK-INTERLEAVE1-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 8
+; CHECK-INTERLEAVE1-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x float> poison, float [[EXT_B]], i64 0
+; CHECK-INTERLEAVE1-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x float> [[BROADCAST_SPLATINSERT]], <8 x float> poison, <8 x i32> zeroinitializer
+; CHECK-INTERLEAVE1-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[VEC_PHI:%.*]] = phi <8 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP3:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVE1-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[TMP0]], align 2
+; CHECK-INTERLEAVE1-NEXT: [[TMP1:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x float>
+; CHECK-INTERLEAVE1-NEXT: [[TMP2:%.*]] = fmul <8 x float> [[TMP1]], [[BROADCAST_SPLAT]]
+; CHECK-INTERLEAVE1-NEXT: [[TMP3]] = fadd reassoc <8 x float> [[TMP2]], [[VEC_PHI]]
+; CHECK-INTERLEAVE1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
+; CHECK-INTERLEAVE1-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-INTERLEAVE1: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVE1-NEXT: [[TMP5:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v8f32(float -0.000000e+00, <8 x float> [[TMP3]])
+; CHECK-INTERLEAVE1-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVE1: [[SCALAR_PH]]:
+; CHECK-INTERLEAVE1-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PH]] ]
+; CHECK-INTERLEAVE1-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP5]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PH]] ]
+; CHECK-INTERLEAVE1-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVE1: [[FOR_BODY]]:
+; CHECK-INTERLEAVE1-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[ACCUM:%.*]] = phi float [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVE1-NEXT: [[GEP_A:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 2
+; CHECK-INTERLEAVE1-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVE1-NEXT: [[MUL:%.*]] = fmul float [[EXT_A]], [[EXT_B]]
+; CHECK-INTERLEAVE1-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-INTERLEAVE1-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-INTERLEAVE1-NEXT: [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-INTERLEAVE1-NEXT: br i1 [[CMP_1]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-INTERLEAVE1: [[EXIT_LOOPEXIT]]:
+; CHECK-INTERLEAVE1-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[TMP5]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVE1-NEXT: br label %[[EXIT]]
+; CHECK-INTERLEAVE1: [[EXIT]]:
+; CHECK-INTERLEAVE1-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_LCSSA]], %[[EXIT_LOOPEXIT]] ]
+; CHECK-INTERLEAVE1-NEXT: ret float [[RESULT]]
+;
+; CHECK-INTERLEAVED-LABEL: define float @not_fdotp_ext_outside_plan(
+; CHECK-INTERLEAVED-SAME: ptr [[A:%.*]], half [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-INTERLEAVED-NEXT: [[ENTRY:.*]]:
+; CHECK-INTERLEAVED-NEXT: [[CMP:%.*]] = icmp eq i64 [[N]], 0
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP]], label %[[EXIT:.*]], label %[[FOR_PH:.*]]
+; CHECK-INTERLEAVED: [[FOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[EXT_B:%.*]] = fpext half [[B]] to float
+; CHECK-INTERLEAVED-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
+; CHECK-INTERLEAVED-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
+; CHECK-INTERLEAVED-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x float> poison, float [[EXT_B]], i64 0
+; CHECK-INTERLEAVED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x float> [[BROADCAST_SPLATINSERT]], <8 x float> poison, <8 x i32> zeroinitializer
+; CHECK-INTERLEAVED-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[VECTOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI:%.*]] = phi <8 x float> [ <float 0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[VEC_PHI1:%.*]] = phi <8 x float> [ splat (float -0.000000e+00), %[[VECTOR_PH]] ], [ [[TMP7:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT: [[TMP1:%.*]] = getelementptr inbounds half, ptr [[TMP0]], i32 8
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD:%.*]] = load <8 x half>, ptr [[TMP0]], align 2
+; CHECK-INTERLEAVED-NEXT: [[WIDE_LOAD2:%.*]] = load <8 x half>, ptr [[TMP1]], align 2
+; CHECK-INTERLEAVED-NEXT: [[TMP2:%.*]] = fpext <8 x half> [[WIDE_LOAD]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP3:%.*]] = fpext <8 x half> [[WIDE_LOAD2]] to <8 x float>
+; CHECK-INTERLEAVED-NEXT: [[TMP4:%.*]] = fmul <8 x float> [[TMP2]], [[BROADCAST_SPLAT]]
+; CHECK-INTERLEAVED-NEXT: [[TMP5:%.*]] = fmul <8 x float> [[TMP3]], [[BROADCAST_SPLAT]]
+; CHECK-INTERLEAVED-NEXT: [[TMP6]] = fadd reassoc <8 x float> [[TMP4]], [[VEC_PHI]]
+; CHECK-INTERLEAVED-NEXT: [[TMP7]] = fadd reassoc <8 x float> [[TMP5]], [[VEC_PHI1]]
+; CHECK-INTERLEAVED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-INTERLEAVED-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-INTERLEAVED: [[MIDDLE_BLOCK]]:
+; CHECK-INTERLEAVED-NEXT: [[BIN_RDX:%.*]] = fadd reassoc <8 x float> [[TMP7]], [[TMP6]]
+; CHECK-INTERLEAVED-NEXT: [[TMP9:%.*]] = call reassoc float @llvm.vector.reduce.fadd.v8f32(float -0.000000e+00, <8 x float> [[BIN_RDX]])
+; CHECK-INTERLEAVED-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-INTERLEAVED: [[SCALAR_PH]]:
+; CHECK-INTERLEAVED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PH]] ]
+; CHECK-INTERLEAVED-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP9]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PH]] ]
+; CHECK-INTERLEAVED-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-INTERLEAVED: [[FOR_BODY]]:
+; CHECK-INTERLEAVED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[ACCUM:%.*]] = phi float [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT: [[GEP_A:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 2
+; CHECK-INTERLEAVED-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-INTERLEAVED-NEXT: [[MUL:%.*]] = fmul float [[EXT_A]], [[EXT_B]]
+; CHECK-INTERLEAVED-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-INTERLEAVED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-INTERLEAVED-NEXT: [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-INTERLEAVED-NEXT: br i1 [[CMP_1]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-INTERLEAVED: [[EXIT_LOOPEXIT]]:
+; CHECK-INTERLEAVED-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[TMP9]], %[[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVED-NEXT: br label %[[EXIT]]
+; CHECK-INTERLEAVED: [[EXIT]]:
+; CHECK-INTERLEAVED-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_LCSSA]], %[[EXIT_LOOPEXIT]] ]
+; CHECK-INTERLEAVED-NEXT: ret float [[RESULT]]
+;
+; CHECK-MAXBW-LABEL: define float @not_fdotp_ext_outside_plan(
+; CHECK-MAXBW-SAME: ptr [[A:%.*]], half [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-MAXBW-NEXT: [[ENTRY:.*]]:
+; CHECK-MAXBW-NEXT: [[CMP:%.*]] = icmp eq i64 [[N]], 0
+; CHECK-MAXBW-NEXT: br i1 [[CMP]], label %[[EXIT:.*]], label %[[FOR_PH:.*]]
+; CHECK-MAXBW: [[FOR_PH]]:
+; CHECK-MAXBW-NEXT: [[EXT_B:%.*]] = fpext half [[B]] to float
+; CHECK-MAXBW-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 3
+; CHECK-MAXBW-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP1]]
+; CHECK-MAXBW-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-MAXBW: [[VECTOR_PH]]:
+; CHECK-MAXBW-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-MAXBW-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 8
+; CHECK-MAXBW-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
+; CHECK-MAXBW-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 8 x float> poison, float [[EXT_B]], i64 0
+; CHECK-MAXBW-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 8 x float> [[BROADCAST_SPLATINSERT]], <vscale x 8 x float> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-MAXBW-NEXT: br label %[[VECTOR_BODY:.*]]
+; CHECK-MAXBW: [[VECTOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 8 x float> [ insertelement (<vscale x 8 x float> splat (float -0.000000e+00), float 0.000000e+00, i32 0), %[[VECTOR_PH]] ], [ [[TMP7:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[TMP4:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[INDEX]]
+; CHECK-MAXBW-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 2
+; CHECK-MAXBW-NEXT: [[TMP5:%.*]] = fpext <vscale x 8 x half> [[WIDE_LOAD]] to <vscale x 8 x float>
+; CHECK-MAXBW-NEXT: [[TMP6:%.*]] = fmul <vscale x 8 x float> [[TMP5]], [[BROADCAST_SPLAT]]
+; CHECK-MAXBW-NEXT: [[TMP7]] = fadd reassoc <vscale x 8 x float> [[TMP6]], [[VEC_PHI]]
+; CHECK-MAXBW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
+; CHECK-MAXBW-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; CHECK-MAXBW: [[MIDDLE_BLOCK]]:
+; CHECK-MAXBW-NEXT: [[TMP9:%.*]] = call reassoc float @llvm.vector.reduce.fadd.nxv8f32(float -0.000000e+00, <vscale x 8 x float> [[TMP7]])
+; CHECK-MAXBW-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
+; CHECK-MAXBW: [[SCALAR_PH]]:
+; CHECK-MAXBW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_PH]] ]
+; CHECK-MAXBW-NEXT: [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP9]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[FOR_PH]] ]
+; CHECK-MAXBW-NEXT: br label %[[FOR_BODY:.*]]
+; CHECK-MAXBW: [[FOR_BODY]]:
+; CHECK-MAXBW-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[ACCUM:%.*]] = phi float [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
+; CHECK-MAXBW-NEXT: [[GEP_A:%.*]] = getelementptr inbounds half, ptr [[A]], i64 [[IV]]
+; CHECK-MAXBW-NEXT: [[LOAD_A:%.*]] = load half, ptr [[GEP_A]], align 2
+; CHECK-MAXBW-NEXT: [[EXT_A:%.*]] = fpext half [[LOAD_A]] to float
+; CHECK-MAXBW-NEXT: [[MUL:%.*]] = fmul float [[EXT_A]], [[EXT_B]]
+; CHECK-MAXBW-NEXT: [[ADD]] = fadd reassoc float [[MUL]], [[ACCUM]]
+; CHECK-MAXBW-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-MAXBW-NEXT: [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-MAXBW-NEXT: br i1 [[CMP_1]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
+; CHECK-MAXBW: [[EXIT_LOOPEXIT]]:
+; CHECK-MAXBW-NEXT: [[ADD_LCSSA:%.*]] = phi float [ [[ADD]], %[[FOR_BODY]] ], [ [[TMP9]], %[[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT: br label %[[EXIT]]
+; CHECK-MAXBW: [[EXIT]]:
+; CHECK-MAXBW-NEXT: [[RESULT:%.*]] = phi float [ 0.000000e+00, %[[ENTRY]] ], [ [[ADD_LCSSA]], %[[EXIT_LOOPEXIT]] ]
+; CHECK-MAXBW-NEXT: ret float [[RESULT]]
+;
+entry:
+ %cmp = icmp eq i64 %n, 0
+ br i1 %cmp, label %exit, label %for.ph
+
+for.ph: ; preds = %entry
+ %ext.b = fpext half %b to float
+ br label %for.body
+
+for.body: ; preds = %for.body.lr.ph, %for.body
+ %iv = phi i64 [ 0, %for.ph ], [ %iv.next, %for.body ]
+ %accum = phi float [ 0.0, %for.ph ], [ %add, %for.body ]
+ %gep.a = getelementptr inbounds half, ptr %a, i64 %iv
+ %load.a = load half, ptr %gep.a, align 2
+ %ext.a = fpext half %load.a to float
+ %mul = fmul float %ext.a, %ext.b
+ %add = fadd reassoc float %mul, %accum
+ %iv.next = add nuw nsw i64 %iv, 1
+ %cmp.1 = icmp eq i64 %iv.next, %n
+ br i1 %cmp.1, label %exit, label %for.body
+
+exit: ; preds = %for.cond.cleanup.loopexit, %entry
+ %result = phi float [ 0.0, %entry ], [ %add, %for.body ]
+ ret float %result
+}
+
+
+;.
+; CHECK-INTERLEAVE1: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
+; CHECK-INTERLEAVE1: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
+; CHECK-INTERLEAVE1: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
+; CHECK-INTERLEAVE1: [[LOOP3]] = distinct !{[[LOOP3]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
+;.
+; CHECK-INTERLEAVED: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
+; CHECK-INTERLEAVED: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
+; CHECK-INTERLEAVED: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
+; CHECK-INTERLEAVED: [[LOOP3]] = distinct !{[[LOOP3]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
+;.
+; CHECK-MAXBW: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
+; CHECK-MAXBW: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
+; CHECK-MAXBW: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
+; CHECK-MAXBW: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
+;.
----------------
SamTebbs33 wrote:
I know it's a bit of a pain but we tend to remove these. You can add `--check-globals none` to the update script command to stop them from being generated.
https://github.com/llvm/llvm-project/pull/163975
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