llvm/test/Transforms/LoopVectorize/RISCV/partial-reduce-dot-product.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --filter-out-after "^scalar.ph:" --version 4
; RUN: opt -passes=loop-vectorize -mattr=+v -prefer-predicate-over-epilogue=scalar-epilogue -S < %s | FileCheck %s --check-prefixes=CHECK,V
; RUN: opt -passes=loop-vectorize -mattr=+v,+experimental-zvqdotq -prefer-predicate-over-epilogue=scalar-epilogue -S < %s | FileCheck %s --check-prefixes=CHECK,ZVQDOTQ
; RUN: opt -passes=loop-vectorize -mattr=+v -scalable-vectorization=off -prefer-predicate-over-epilogue=scalar-epilogue -S < %s | FileCheck %s --check-prefixes=FIXED,FIXED-V
; RUN: opt -passes=loop-vectorize -mattr=+v,+experimental-zvqdotq -scalable-vectorization=off -prefer-predicate-over-epilogue=scalar-epilogue -S < %s | FileCheck %s --check-prefixes=FIXED,FIXED-ZVQDOTQ

; TODO: Remove -prefer-predicate-over-epilogue=scalar-epilogue when partial reductions with EVL tail folding is supported.

target triple = "riscv64-none-unknown-elf"

define i32 @vqdot(ptr %a, ptr %b) #0 {
; V-LABEL: define i32 @vqdot(
; V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; V-NEXT:  entry:
; V-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; V-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; V-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; V:       vector.ph:
; V-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; V-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; V-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; V-NEXT:    br label [[VECTOR_BODY:%.*]]
; V:       vector.body:
; V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; V-NEXT:    [[TMP8:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; V-NEXT:    [[TMP11:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; V-NEXT:    [[TMP13]] = add <vscale x 4 x i32> [[TMP12]], [[VEC_PHI]]
; V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; V:       middle.block:
; V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
; V-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; V-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; V:       scalar.ph:
;
; ZVQDOTQ-LABEL: define i32 @vqdot(
; ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; ZVQDOTQ-NEXT:  entry:
; ZVQDOTQ-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; ZVQDOTQ-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; ZVQDOTQ-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; ZVQDOTQ:       vector.ph:
; ZVQDOTQ-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; ZVQDOTQ-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; ZVQDOTQ-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; ZVQDOTQ:       vector.body:
; ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 1 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; ZVQDOTQ-NEXT:    [[TMP8:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; ZVQDOTQ-NEXT:    [[TMP11:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 1 x i32> @llvm.experimental.vector.partial.reduce.add.nxv1i32.nxv4i32(<vscale x 1 x i32> [[VEC_PHI]], <vscale x 4 x i32> [[TMP12]])
; ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; ZVQDOTQ-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; ZVQDOTQ:       middle.block:
; ZVQDOTQ-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv1i32(<vscale x 1 x i32> [[PARTIAL_REDUCE]])
; ZVQDOTQ-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; ZVQDOTQ:       scalar.ph:
;
; FIXED-V-LABEL: define i32 @vqdot(
; FIXED-V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; FIXED-V-NEXT:  entry:
; FIXED-V-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-V:       vector.ph:
; FIXED-V-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-V:       vector.body:
; FIXED-V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP12:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI1:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-V-NEXT:    [[TMP3:%.*]] = sext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP4:%.*]] = sext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-V-NEXT:    [[TMP8:%.*]] = sext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP9:%.*]] = sext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-V-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-V-NEXT:    [[TMP12]] = add <8 x i32> [[TMP10]], [[VEC_PHI]]
; FIXED-V-NEXT:    [[TMP13]] = add <8 x i32> [[TMP11]], [[VEC_PHI1]]
; FIXED-V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; FIXED-V:       middle.block:
; FIXED-V-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP13]], [[TMP12]]
; FIXED-V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[BIN_RDX]])
; FIXED-V-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-V:       scalar.ph:
;
; FIXED-ZVQDOTQ-LABEL: define i32 @vqdot(
; FIXED-ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; FIXED-ZVQDOTQ-NEXT:  entry:
; FIXED-ZVQDOTQ-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-ZVQDOTQ:       vector.ph:
; FIXED-ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-ZVQDOTQ:       vector.body:
; FIXED-ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI1:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP3:%.*]] = sext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP4:%.*]] = sext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP8:%.*]] = sext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP9:%.*]] = sext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI]], <8 x i32> [[TMP10]])
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE5]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI1]], <8 x i32> [[TMP11]])
; FIXED-ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-ZVQDOTQ-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-ZVQDOTQ-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; FIXED-ZVQDOTQ:       middle.block:
; FIXED-ZVQDOTQ-NEXT:    [[BIN_RDX:%.*]] = add <2 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP13:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[BIN_RDX]])
; FIXED-ZVQDOTQ-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-ZVQDOTQ:       scalar.ph:
;
entry:
  br label %for.body

for.body:                                         ; preds = %for.body, %entry
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
  %gep.a = getelementptr i8, ptr %a, i64 %iv
  %load.a = load i8, ptr %gep.a, align 1
  %ext.a = sext i8 %load.a to i32
  %gep.b = getelementptr i8, ptr %b, i64 %iv
  %load.b = load i8, ptr %gep.b, align 1
  %ext.b = sext i8 %load.b to i32
  %mul = mul i32 %ext.b, %ext.a
  %add = add i32 %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 i32 %add
}


define i32 @vqdotu(ptr %a, ptr %b) #0 {
; V-LABEL: define i32 @vqdotu(
; V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; V-NEXT:  entry:
; V-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; V-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; V-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; V:       vector.ph:
; V-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; V-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; V-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; V-NEXT:    br label [[VECTOR_BODY:%.*]]
; V:       vector.body:
; V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; V-NEXT:    [[TMP8:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; V-NEXT:    [[TMP11:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; V-NEXT:    [[TMP13]] = add <vscale x 4 x i32> [[TMP12]], [[VEC_PHI]]
; V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; V:       middle.block:
; V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
; V-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; V-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; V:       scalar.ph:
;
; ZVQDOTQ-LABEL: define i32 @vqdotu(
; ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; ZVQDOTQ-NEXT:  entry:
; ZVQDOTQ-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; ZVQDOTQ-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; ZVQDOTQ-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; ZVQDOTQ:       vector.ph:
; ZVQDOTQ-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; ZVQDOTQ-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; ZVQDOTQ-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; ZVQDOTQ:       vector.body:
; ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 1 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; ZVQDOTQ-NEXT:    [[TMP8:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; ZVQDOTQ-NEXT:    [[TMP11:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 1 x i32> @llvm.experimental.vector.partial.reduce.add.nxv1i32.nxv4i32(<vscale x 1 x i32> [[VEC_PHI]], <vscale x 4 x i32> [[TMP12]])
; ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; ZVQDOTQ-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; ZVQDOTQ:       middle.block:
; ZVQDOTQ-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv1i32(<vscale x 1 x i32> [[PARTIAL_REDUCE]])
; ZVQDOTQ-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; ZVQDOTQ:       scalar.ph:
;
; FIXED-V-LABEL: define i32 @vqdotu(
; FIXED-V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-V-NEXT:  entry:
; FIXED-V-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-V:       vector.ph:
; FIXED-V-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-V:       vector.body:
; FIXED-V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP12:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI1:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-V-NEXT:    [[TMP3:%.*]] = zext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP4:%.*]] = zext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-V-NEXT:    [[TMP8:%.*]] = zext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP9:%.*]] = zext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-V-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-V-NEXT:    [[TMP12]] = add <8 x i32> [[TMP10]], [[VEC_PHI]]
; FIXED-V-NEXT:    [[TMP13]] = add <8 x i32> [[TMP11]], [[VEC_PHI1]]
; FIXED-V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; FIXED-V:       middle.block:
; FIXED-V-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP13]], [[TMP12]]
; FIXED-V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[BIN_RDX]])
; FIXED-V-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-V:       scalar.ph:
;
; FIXED-ZVQDOTQ-LABEL: define i32 @vqdotu(
; FIXED-ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-ZVQDOTQ-NEXT:  entry:
; FIXED-ZVQDOTQ-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-ZVQDOTQ:       vector.ph:
; FIXED-ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-ZVQDOTQ:       vector.body:
; FIXED-ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI1:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP3:%.*]] = zext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP4:%.*]] = zext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP8:%.*]] = zext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP9:%.*]] = zext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI]], <8 x i32> [[TMP10]])
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE5]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI1]], <8 x i32> [[TMP11]])
; FIXED-ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-ZVQDOTQ-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-ZVQDOTQ-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; FIXED-ZVQDOTQ:       middle.block:
; FIXED-ZVQDOTQ-NEXT:    [[BIN_RDX:%.*]] = add <2 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP13:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[BIN_RDX]])
; FIXED-ZVQDOTQ-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-ZVQDOTQ:       scalar.ph:
;
entry:
  br label %for.body

for.body:                                         ; preds = %for.body, %entry
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
  %gep.a = getelementptr i8, ptr %a, i64 %iv
  %load.a = load i8, ptr %gep.a, align 1
  %ext.a = zext i8 %load.a to i32
  %gep.b = getelementptr i8, ptr %b, i64 %iv
  %load.b = load i8, ptr %gep.b, align 1
  %ext.b = zext i8 %load.b to i32
  %mul = mul i32 %ext.b, %ext.a
  %add = add i32 %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 i32 %add
}


define i32 @vqdotsu(ptr %a, ptr %b) #0 {
; V-LABEL: define i32 @vqdotsu(
; V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; V-NEXT:  entry:
; V-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; V-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; V-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; V:       vector.ph:
; V-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; V-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; V-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; V-NEXT:    br label [[VECTOR_BODY:%.*]]
; V:       vector.body:
; V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; V-NEXT:    [[TMP8:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; V-NEXT:    [[TMP11:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; V-NEXT:    [[TMP13]] = add <vscale x 4 x i32> [[TMP12]], [[VEC_PHI]]
; V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; V:       middle.block:
; V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
; V-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; V-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; V:       scalar.ph:
;
; ZVQDOTQ-LABEL: define i32 @vqdotsu(
; ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; ZVQDOTQ-NEXT:  entry:
; ZVQDOTQ-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; ZVQDOTQ-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; ZVQDOTQ-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; ZVQDOTQ:       vector.ph:
; ZVQDOTQ-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; ZVQDOTQ-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; ZVQDOTQ-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; ZVQDOTQ:       vector.body:
; ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 1 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; ZVQDOTQ-NEXT:    [[TMP8:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; ZVQDOTQ-NEXT:    [[TMP11:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 1 x i32> @llvm.experimental.vector.partial.reduce.add.nxv1i32.nxv4i32(<vscale x 1 x i32> [[VEC_PHI]], <vscale x 4 x i32> [[TMP12]])
; ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; ZVQDOTQ-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; ZVQDOTQ:       middle.block:
; ZVQDOTQ-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv1i32(<vscale x 1 x i32> [[PARTIAL_REDUCE]])
; ZVQDOTQ-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; ZVQDOTQ:       scalar.ph:
;
; FIXED-V-LABEL: define i32 @vqdotsu(
; FIXED-V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-V-NEXT:  entry:
; FIXED-V-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-V:       vector.ph:
; FIXED-V-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-V:       vector.body:
; FIXED-V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP12:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI1:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-V-NEXT:    [[TMP3:%.*]] = zext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP4:%.*]] = zext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-V-NEXT:    [[TMP8:%.*]] = sext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP9:%.*]] = sext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-V-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-V-NEXT:    [[TMP12]] = add <8 x i32> [[TMP10]], [[VEC_PHI]]
; FIXED-V-NEXT:    [[TMP13]] = add <8 x i32> [[TMP11]], [[VEC_PHI1]]
; FIXED-V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; FIXED-V:       middle.block:
; FIXED-V-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP13]], [[TMP12]]
; FIXED-V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[BIN_RDX]])
; FIXED-V-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-V:       scalar.ph:
;
; FIXED-ZVQDOTQ-LABEL: define i32 @vqdotsu(
; FIXED-ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-ZVQDOTQ-NEXT:  entry:
; FIXED-ZVQDOTQ-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-ZVQDOTQ:       vector.ph:
; FIXED-ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-ZVQDOTQ:       vector.body:
; FIXED-ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI1:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP3:%.*]] = zext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP4:%.*]] = zext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP8:%.*]] = sext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP9:%.*]] = sext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI]], <8 x i32> [[TMP10]])
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE5]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI1]], <8 x i32> [[TMP11]])
; FIXED-ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-ZVQDOTQ-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-ZVQDOTQ-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; FIXED-ZVQDOTQ:       middle.block:
; FIXED-ZVQDOTQ-NEXT:    [[BIN_RDX:%.*]] = add <2 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP13:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[BIN_RDX]])
; FIXED-ZVQDOTQ-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-ZVQDOTQ:       scalar.ph:
;
entry:
  br label %for.body

for.body:                                         ; preds = %for.body, %entry
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
  %gep.a = getelementptr i8, ptr %a, i64 %iv
  %load.a = load i8, ptr %gep.a, align 1
  %ext.a = zext i8 %load.a to i32
  %gep.b = getelementptr i8, ptr %b, i64 %iv
  %load.b = load i8, ptr %gep.b, align 1
  %ext.b = sext i8 %load.b to i32
  %mul = mul i32 %ext.b, %ext.a
  %add = add i32 %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 i32 %add
}

define i32 @vqdotsu2(ptr %a, ptr %b) #0 {
; V-LABEL: define i32 @vqdotsu2(
; V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; V-NEXT:  entry:
; V-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; V-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; V-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; V:       vector.ph:
; V-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; V-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; V-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; V-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; V-NEXT:    br label [[VECTOR_BODY:%.*]]
; V:       vector.body:
; V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; V-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; V-NEXT:    [[TMP8:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; V-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; V-NEXT:    [[TMP11:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; V-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; V-NEXT:    [[TMP13]] = add <vscale x 4 x i32> [[TMP12]], [[VEC_PHI]]
; V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; V:       middle.block:
; V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
; V-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; V-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; V:       scalar.ph:
;
; ZVQDOTQ-LABEL: define i32 @vqdotsu2(
; ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; ZVQDOTQ-NEXT:  entry:
; ZVQDOTQ-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
; ZVQDOTQ-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; ZVQDOTQ-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; ZVQDOTQ:       vector.ph:
; ZVQDOTQ-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; ZVQDOTQ-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; ZVQDOTQ-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; ZVQDOTQ-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; ZVQDOTQ:       vector.body:
; ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 1 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; ZVQDOTQ-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP6]], align 1
; ZVQDOTQ-NEXT:    [[TMP8:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; ZVQDOTQ-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP9]], align 1
; ZVQDOTQ-NEXT:    [[TMP11:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
; ZVQDOTQ-NEXT:    [[TMP12:%.*]] = mul <vscale x 4 x i32> [[TMP11]], [[TMP8]]
; ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 1 x i32> @llvm.experimental.vector.partial.reduce.add.nxv1i32.nxv4i32(<vscale x 1 x i32> [[VEC_PHI]], <vscale x 4 x i32> [[TMP12]])
; ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
; ZVQDOTQ-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; ZVQDOTQ:       middle.block:
; ZVQDOTQ-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv1i32(<vscale x 1 x i32> [[PARTIAL_REDUCE]])
; ZVQDOTQ-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; ZVQDOTQ-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; ZVQDOTQ:       scalar.ph:
;
; FIXED-V-LABEL: define i32 @vqdotsu2(
; FIXED-V-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-V-NEXT:  entry:
; FIXED-V-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-V:       vector.ph:
; FIXED-V-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-V:       vector.body:
; FIXED-V-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP12:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[VEC_PHI1:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
; FIXED-V-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-V-NEXT:    [[TMP3:%.*]] = sext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP4:%.*]] = sext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-V-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-V-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-V-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-V-NEXT:    [[TMP8:%.*]] = zext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP9:%.*]] = zext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-V-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-V-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-V-NEXT:    [[TMP12]] = add <8 x i32> [[TMP10]], [[VEC_PHI]]
; FIXED-V-NEXT:    [[TMP13]] = add <8 x i32> [[TMP11]], [[VEC_PHI1]]
; FIXED-V-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-V-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-V-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; FIXED-V:       middle.block:
; FIXED-V-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP13]], [[TMP12]]
; FIXED-V-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[BIN_RDX]])
; FIXED-V-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-V:       scalar.ph:
;
; FIXED-ZVQDOTQ-LABEL: define i32 @vqdotsu2(
; FIXED-ZVQDOTQ-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
; FIXED-ZVQDOTQ-NEXT:  entry:
; FIXED-ZVQDOTQ-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED-ZVQDOTQ:       vector.ph:
; FIXED-ZVQDOTQ-NEXT:    br label [[VECTOR_BODY:%.*]]
; FIXED-ZVQDOTQ:       vector.body:
; FIXED-ZVQDOTQ-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[VEC_PHI1:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
; FIXED-ZVQDOTQ-NEXT:    [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP0]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD2:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP3:%.*]] = sext <8 x i8> [[WIDE_LOAD]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP4:%.*]] = sext <8 x i8> [[WIDE_LOAD2]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[INDEX]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP5]], i32 8
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i8>, ptr [[TMP5]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[WIDE_LOAD4:%.*]] = load <8 x i8>, ptr [[TMP7]], align 1
; FIXED-ZVQDOTQ-NEXT:    [[TMP8:%.*]] = zext <8 x i8> [[WIDE_LOAD3]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP9:%.*]] = zext <8 x i8> [[WIDE_LOAD4]] to <8 x i32>
; FIXED-ZVQDOTQ-NEXT:    [[TMP10:%.*]] = mul <8 x i32> [[TMP8]], [[TMP3]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP11:%.*]] = mul <8 x i32> [[TMP9]], [[TMP4]]
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI]], <8 x i32> [[TMP10]])
; FIXED-ZVQDOTQ-NEXT:    [[PARTIAL_REDUCE5]] = call <2 x i32> @llvm.experimental.vector.partial.reduce.add.v2i32.v8i32(<2 x i32> [[VEC_PHI1]], <8 x i32> [[TMP11]])
; FIXED-ZVQDOTQ-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; FIXED-ZVQDOTQ-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-ZVQDOTQ-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; FIXED-ZVQDOTQ:       middle.block:
; FIXED-ZVQDOTQ-NEXT:    [[BIN_RDX:%.*]] = add <2 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
; FIXED-ZVQDOTQ-NEXT:    [[TMP13:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[BIN_RDX]])
; FIXED-ZVQDOTQ-NEXT:    br label [[FOR_EXIT:%.*]]
; FIXED-ZVQDOTQ:       scalar.ph:
;
entry:
  br label %for.body

for.body:                                         ; preds = %for.body, %entry
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
  %gep.a = getelementptr i8, ptr %a, i64 %iv
  %load.a = load i8, ptr %gep.a, align 1
  %ext.a = sext i8 %load.a to i32
  %gep.b = getelementptr i8, ptr %b, i64 %iv
  %load.b = load i8, ptr %gep.b, align 1
  %ext.b = zext i8 %load.b to i32
  %mul = mul i32 %ext.b, %ext.a
  %add = add i32 %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 i32 %add
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}
; FIXED: {{.*}}