llvm/llvm/test/Transforms/LoopVectorize/RISCV/pr88802.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -passes=loop-vectorize -mtriple=riscv64 -mattr=+v -S %s | FileCheck %s

define void @test(ptr %p, i64 %a, i8 %b) {
; CHECK-LABEL: define void @test(
; CHECK-SAME: ptr [[P:%.*]], i64 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK:       vector.ph:
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[A]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP2:%.*]] = shl <4 x i64> [[BROADCAST_SPLAT]], <i64 48, i64 48, i64 48, i64 48>
; CHECK-NEXT:    [[TMP3:%.*]] = ashr <4 x i64> [[TMP2]], <i64 52, i64 52, i64 52, i64 52>
; CHECK-NEXT:    [[TMP4:%.*]] = trunc <4 x i64> [[TMP3]] to <4 x i32>
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i8> poison, i8 [[B]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i8> [[BROADCAST_SPLATINSERT1]], <4 x i8> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP6:%.*]] = zext <4 x i8> [[BROADCAST_SPLAT2]] to <4 x i32>
; CHECK-NEXT:    br label [[VECTOR_BODY1:%.*]]
; CHECK:       vector.body:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE8:%.*]] ]
; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_STORE_CONTINUE8]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[INDEX]], 0
; CHECK-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 [[TMP0]], i32 3)
; CHECK-NEXT:    [[TMP1:%.*]] = icmp slt <4 x i32> [[VEC_IND]], <i32 2, i32 2, i32 2, i32 2>
; CHECK-NEXT:    [[TMP5:%.*]] = select <4 x i1> [[ACTIVE_LANE_MASK]], <4 x i1> [[TMP1]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[PREDPHI:%.*]] = select <4 x i1> [[TMP5]], <4 x i32> [[TMP6]], <4 x i32> [[TMP4]]
; CHECK-NEXT:    [[TMP7:%.*]] = shl <4 x i32> [[PREDPHI]], <i32 8, i32 8, i32 8, i32 8>
; CHECK-NEXT:    [[TMP8:%.*]] = trunc <4 x i32> [[TMP7]] to <4 x i8>
; CHECK-NEXT:    [[TMP9:%.*]] = extractelement <4 x i1> [[ACTIVE_LANE_MASK]], i32 0
; CHECK-NEXT:    br i1 [[TMP9]], label [[PRED_STORE_IF:%.*]], label [[VECTOR_BODY:%.*]]
; CHECK:       pred.store.if:
; CHECK-NEXT:    [[TMP10:%.*]] = extractelement <4 x i8> [[TMP8]], i32 0
; CHECK-NEXT:    store i8 [[TMP10]], ptr [[P]], align 1
; CHECK-NEXT:    br label [[VECTOR_BODY]]
; CHECK:       pred.store.continue:
; CHECK-NEXT:    [[TMP11:%.*]] = extractelement <4 x i1> [[ACTIVE_LANE_MASK]], i32 1
; CHECK-NEXT:    br i1 [[TMP11]], label [[PRED_STORE_IF3:%.*]], label [[PRED_STORE_CONTINUE4:%.*]]
; CHECK:       pred.store.if3:
; CHECK-NEXT:    [[TMP12:%.*]] = extractelement <4 x i8> [[TMP8]], i32 1
; CHECK-NEXT:    store i8 [[TMP12]], ptr [[P]], align 1
; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE4]]
; CHECK:       pred.store.continue4:
; CHECK-NEXT:    [[TMP13:%.*]] = extractelement <4 x i1> [[ACTIVE_LANE_MASK]], i32 2
; CHECK-NEXT:    br i1 [[TMP13]], label [[PRED_STORE_IF5:%.*]], label [[PRED_STORE_CONTINUE6:%.*]]
; CHECK:       pred.store.if5:
; CHECK-NEXT:    [[TMP14:%.*]] = extractelement <4 x i8> [[TMP8]], i32 2
; CHECK-NEXT:    store i8 [[TMP14]], ptr [[P]], align 1
; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE6]]
; CHECK:       pred.store.continue6:
; CHECK-NEXT:    [[TMP15:%.*]] = extractelement <4 x i1> [[ACTIVE_LANE_MASK]], i32 3
; CHECK-NEXT:    br i1 [[TMP15]], label [[PRED_STORE_IF7:%.*]], label [[PRED_STORE_CONTINUE8]]
; CHECK:       pred.store.if7:
; CHECK-NEXT:    [[TMP16:%.*]] = extractelement <4 x i8> [[TMP8]], i32 3
; CHECK-NEXT:    store i8 [[TMP16]], ptr [[P]], align 1
; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE8]]
; CHECK:       pred.store.continue8:
; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], <i32 4, i32 4, i32 4, i32 4>
; CHECK-NEXT:    [[INDEX_NEXT]] = add i32 [[INDEX]], 4
; CHECK-NEXT:    br i1 true, label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY1]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       middle.block:
; CHECK-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; CHECK:       scalar.ph:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ 4, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT:    br label [[FOR_COND:%.*]]
; CHECK:       for.cond:
; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY:%.*]] ]
; CHECK-NEXT:    [[ADD]] = add i32 [[IV]], 1
; CHECK-NEXT:    [[CMP_SLT:%.*]] = icmp slt i32 [[IV]], 2
; CHECK-NEXT:    [[SHL:%.*]] = shl i64 [[A]], 48
; CHECK-NEXT:    [[ASHR:%.*]] = ashr i64 [[SHL]], 52
; CHECK-NEXT:    [[TRUNC_I32:%.*]] = trunc i64 [[ASHR]] to i32
; CHECK-NEXT:    br i1 [[CMP_SLT]], label [[COND_FALSE:%.*]], label [[FOR_BODY]]
; CHECK:       cond.false:
; CHECK-NEXT:    [[ZEXT:%.*]] = zext i8 [[B]] to i32
; CHECK-NEXT:    br label [[FOR_BODY]]
; CHECK:       for.body:
; CHECK-NEXT:    [[COND:%.*]] = phi i32 [ [[TRUNC_I32]], [[FOR_COND]] ], [ [[ZEXT]], [[COND_FALSE]] ]
; CHECK-NEXT:    [[SHL_I32:%.*]] = shl i32 [[COND]], 8
; CHECK-NEXT:    [[TRUNC:%.*]] = trunc i32 [[SHL_I32]] to i8
; CHECK-NEXT:    store i8 [[TRUNC]], ptr [[P]], align 1
; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[IV]], 2
; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_COND]], label [[EXIT]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.body, %entry
  %iv = phi i32 [ 0, %entry ], [ %add, %for.body ]
  %add = add i32 %iv, 1
  %cmp.slt = icmp slt i32 %iv, 2
  %shl = shl i64 %a, 48
  %ashr = ashr i64 %shl, 52
  %trunc.i32 = trunc i64 %ashr to i32
  br i1 %cmp.slt, label %cond.false, label %for.body

cond.false:                                       ; preds = %for.cond
  %zext = zext i8 %b to i32
  br label %for.body

for.body:                                         ; preds = %cond.false, %for.cond
  %cond = phi i32 [ %trunc.i32, %for.cond ], [ %zext, %cond.false ]
  %shl.i32 = shl i32 %cond, 8
  %trunc = trunc i32 %shl.i32 to i8
  store i8 %trunc, ptr %p, align 1
  %cmp = icmp slt i32 %iv, 2
  br i1 %cmp, label %for.cond, label %exit

exit:                                             ; preds = %for.body
  ret void
}
;.
; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
;.