test/Transforms/LoopVectorize/predicator.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
; RUN: opt < %s -S -p loop-vectorize -force-vector-width=4 -force-target-supports-masked-memory-ops | FileCheck %s

define void @diamond_phi2(ptr %a, i1 %c1, i1 %c2) {
; CHECK-LABEL: define void @diamond_phi2(
; CHECK-SAME: ptr [[A:%.*]], i1 [[C1:%.*]], i1 [[C2:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C2]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C1]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[TMP20:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = icmp sle <4 x i64> [[VEC_IND]], zeroinitializer
; CHECK-NEXT:    [[TMP1:%.*]] = xor <4 x i1> [[TMP0]], splat (i1 true)
; CHECK-NEXT:    [[TMP2:%.*]] = add <4 x i64> [[VEC_IND]], splat (i64 2)
; CHECK-NEXT:    [[TMP3:%.*]] = add <4 x i64> [[VEC_IND]], splat (i64 1)
; CHECK-NEXT:    [[TMP4:%.*]] = select <4 x i1> [[TMP1]], <4 x i1> [[BROADCAST_SPLAT]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP5:%.*]] = select <4 x i1> [[TMP0]], <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP6:%.*]] = or <4 x i1> [[TMP4]], [[TMP5]]
; CHECK-NEXT:    [[PREDPHI:%.*]] = select <4 x i1> [[TMP5]], <4 x i64> [[TMP3]], <4 x i64> [[TMP2]]
; CHECK-NEXT:    [[TMP21:%.*]] = getelementptr i64, ptr [[A]], i64 [[TMP20]]
; CHECK-NEXT:    call void @llvm.masked.store.v4i64.p0(<4 x i64> [[PREDPHI]], ptr align 4 [[TMP21]], <4 x i1> [[TMP6]])
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[TMP20]], 4
; CHECK-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-NEXT:    [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], 128
; CHECK-NEXT:    br i1 [[TMP23]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %bb0

bb0:
;          bb0
;         /  \
;       bb1  bb2
;       | \  / |
;       |  bb4 |
;        \  | /
;          bb5
; The blend masks for %phi in bb4 should be:
; bb1 := bb0->bb1 := c0
; bb2 := bb0->bb2 := !c0
  %iv = phi i64 [0, %entry], [%iv.next, %bb5]
  %c0 = icmp sle i64 %iv, 0
  br i1 %c0, label %bb1, label %bb2

bb1:
  %add1 = add i64 %iv, 1
  br i1 %c1, label %bb4, label %bb5

bb2:
  %add2 = add i64 %iv, 2
  br i1 %c2, label %bb4, label %bb5

bb4:
  %phi = phi i64 [%add1, %bb1], [%add2, %bb2]
  %gep = getelementptr i64, ptr %a, i64 %iv
  store i64 %phi, ptr %gep
  br label %bb5

bb5:
  %iv.next = add nsw nuw i64 %iv, 1
  %ec = icmp eq i64 %iv.next, 128
  br i1 %ec, label %exit, label %bb0

exit:
  ret void
}

define void @blend_masks(ptr noalias %p, i1 %c0, i1 %c1, i1 %c3, i1 %c4, i1 %c6) {
; CHECK-LABEL: define void @blend_masks(
; CHECK-SAME: ptr noalias [[P:%.*]], i1 [[C0:%.*]], i1 [[C1:%.*]], i1 [[C3:%.*]], i1 [[C4:%.*]], i1 [[C6:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C3]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C6]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <4 x i1> poison, i1 [[C4]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT4:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT3]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT5:%.*]] = insertelement <4 x i1> poison, i1 [[C1]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT6:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT5]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT7:%.*]] = insertelement <4 x i1> poison, i1 [[C0]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT8:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT7]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP0:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT8]], splat (i1 true)
; CHECK-NEXT:    [[TMP1:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT6]], splat (i1 true)
; CHECK-NEXT:    [[TMP2:%.*]] = select <4 x i1> [[BROADCAST_SPLAT8]], <4 x i1> [[TMP1]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP3:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT4]], splat (i1 true)
; CHECK-NEXT:    [[TMP4:%.*]] = select <4 x i1> [[TMP2]], <4 x i1> [[TMP3]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP5:%.*]] = or <4 x i1> [[TMP4]], [[TMP0]]
; CHECK-NEXT:    [[TMP6:%.*]] = select <4 x i1> [[BROADCAST_SPLAT8]], <4 x i1> [[BROADCAST_SPLAT6]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP7:%.*]] = select <4 x i1> [[TMP2]], <4 x i1> [[BROADCAST_SPLAT4]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP8:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT]], splat (i1 true)
; CHECK-NEXT:    [[TMP9:%.*]] = select <4 x i1> [[TMP6]], <4 x i1> [[TMP8]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP10:%.*]] = or <4 x i1> [[TMP7]], [[TMP9]]
; CHECK-NEXT:    [[TMP11:%.*]] = select <4 x i1> [[TMP5]], <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[TMP12:%.*]] = or <4 x i1> [[TMP11]], [[TMP10]]
; CHECK-NEXT:    [[PREDPHI:%.*]] = select <4 x i1> [[TMP10]], <4 x i32> zeroinitializer, <4 x i32> splat (i32 1)
; CHECK-NEXT:    br label %[[PRED_STORE_CONTINUE12:.*]]
; CHECK:       [[PRED_STORE_CONTINUE12]]:
; CHECK-NEXT:    [[TMP26:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE12]] ]
; CHECK-NEXT:    [[TMP27:%.*]] = getelementptr i32, ptr [[P]], i32 [[TMP26]]
; CHECK-NEXT:    call void @llvm.masked.store.v4i32.p0(<4 x i32> [[PREDPHI]], ptr align 4 [[TMP27]], <4 x i1> [[TMP12]])
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[TMP26]], 4
; CHECK-NEXT:    [[TMP29:%.*]] = icmp eq i32 [[INDEX_NEXT]], 128
; CHECK-NEXT:    br i1 [[TMP29]], label %[[MIDDLE_BLOCK:.*]], label %[[PRED_STORE_CONTINUE12]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %bb0

bb0:
;        bb0
;       /   \
;      bb1   bb2
;     /  \     |
;    bb3  bb4  |
;   / \  / \   /
;   \ bb5   bb6
;    \  \  / /
;     \ bb7 /
;      \ | /
;       bb8
; The blend masks for %phi in bb7 should be:
; bb5 := bb1->bb3 v bb4->bb5 := (c0 && c1) || (c0 && !c1 && c4)
; bb6 := bb4->bb6 v bb0->bb2 := (c0 && !c1 && !c4) || !c1
  %iv = phi i32 [0, %entry], [%iv.next, %bb8]
  br i1 %c0, label %bb1, label %bb2

bb1:
  br i1 %c1, label %bb3, label %bb4

bb2:
  br label %bb6

bb3:
  br i1 %c3, label %bb8, label %bb5

bb4:
  br i1 %c4, label %bb5, label %bb6

bb5:
  br label %bb7

bb6:
  br i1 %c6, label %bb7, label %bb8

bb7:
  %phi = phi i32 [0, %bb5], [1, %bb6]
  %gep = getelementptr i32, ptr %p, i32 %iv
  store i32 %phi, ptr %gep
  br label %bb8

bb8:
  %iv.next = add i32 %iv, 1
  %ec = icmp eq i32 %iv.next, 128
  br i1 %ec, label %exit, label %bb0

exit:
  ret void
}

define void @blend_masks_triangle_phi(ptr noalias %p, i1 %c0, i1 %c1) {
; CHECK-LABEL: define void @blend_masks_triangle_phi(
; CHECK-SAME: ptr noalias [[P:%.*]], i1 [[C0:%.*]], i1 [[C1:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C1]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C0]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP0:%.*]] = select <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> [[BROADCAST_SPLAT]], <4 x i1> zeroinitializer
; CHECK-NEXT:    [[PREDPHI:%.*]] = select <4 x i1> [[TMP0]], <4 x i32> zeroinitializer, <4 x i32> splat (i32 1)
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr i32, ptr [[P]], i32 [[INDEX]]
; CHECK-NEXT:    store <4 x i32> [[PREDPHI]], ptr [[TMP1]], align 4
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[INDEX_NEXT]], 128
; CHECK-NEXT:    br i1 [[TMP2]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %bb0

bb0:
;          bb0
;         /  |
;       bb1  |
;       |  \ |
;       |  bb2
;       |  /
;       bb3
; The blend masks for %phi in bb3 should be:
; bb0 := bb1->bb2 v bb0->bb2 := c0 && !c1 || !c0
; bb1 := bb1->bb3 := c0 && c1
  %iv = phi i32 [0, %entry], [%iv.next, %bb3]
  br i1 %c0, label %bb1, label %bb2

bb1:
  br i1 %c1, label %bb3, label %bb2

bb2:
  br label %bb3

bb3:
  %phi = phi i32 [0, %bb1], [1, %bb2]
  %gep = getelementptr i32, ptr %p, i32 %iv
  store i32 %phi, ptr %gep
  %iv.next = add i32 %iv, 1
  %ec = icmp eq i32 %iv.next, 128
  br i1 %ec, label %exit, label %bb0

exit:
  ret void
}