; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=loop-vectorize -mtriple aarch64-unknown-linux-gnu -mattr=+sve -epilogue-vectorization-force-VF=2 -prefer-inloop-reductions -S | FileCheck %s
;
; In-loop integer and reduction
;
define i64 @int_reduction_and(ptr noalias nocapture %a, i64 %N) {
; CHECK-LABEL: @int_reduction_and(
; CHECK-NEXT: iter.check:
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], 2
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
; CHECK: vector.main.loop.iter.check:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP21:%.*]] = mul i64 [[TMP20]], 4
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi i64 [ 1, [[VECTOR_PH]] ], [ [[TMP17:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI2:%.*]] = phi i64 [ -1, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[TMP10]], i32 0
; CHECK-NEXT: [[TMP13:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP14:%.*]] = mul i64 [[TMP13]], 2
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds i64, ptr [[TMP10]], i64 [[TMP14]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP12]], align 8
; CHECK-NEXT: [[WIDE_LOAD3:%.*]] = load <vscale x 2 x i64>, ptr [[TMP15]], align 8
; CHECK-NEXT: [[TMP16:%.*]] = call i64 @llvm.vector.reduce.and.nxv2i64(<vscale x 2 x i64> [[WIDE_LOAD]])
; CHECK-NEXT: [[TMP17]] = and i64 [[TMP16]], [[VEC_PHI]]
; CHECK-NEXT: [[TMP18:%.*]] = call i64 @llvm.vector.reduce.and.nxv2i64(<vscale x 2 x i64> [[WIDE_LOAD3]])
; CHECK-NEXT: [[TMP19]] = and i64 [[TMP18]], [[VEC_PHI2]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP21]]
; CHECK-NEXT: [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP22]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[BIN_RDX:%.*]] = and i64 [[TMP19]], [[TMP17]]
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
; CHECK: vec.epilog.iter.check:
; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]]
; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 2
; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
; CHECK: vec.epilog.ph:
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i64 [ [[BIN_RDX]], [[VEC_EPILOG_ITER_CHECK]] ], [ 1, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-NEXT: [[N_MOD_VF4:%.*]] = urem i64 [[N]], 2
; CHECK-NEXT: [[N_VEC5:%.*]] = sub i64 [[N]], [[N_MOD_VF4]]
; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
; CHECK: vec.epilog.vector.body:
; CHECK-NEXT: [[INDEX7:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT10:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI8:%.*]] = phi i64 [ [[BC_MERGE_RDX]], [[VEC_EPILOG_PH]] ], [ [[TMP27:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP23:%.*]] = add i64 [[INDEX7]], 0
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP23]]
; CHECK-NEXT: [[TMP25:%.*]] = getelementptr inbounds i64, ptr [[TMP24]], i32 0
; CHECK-NEXT: [[WIDE_LOAD9:%.*]] = load <2 x i64>, ptr [[TMP25]], align 8
; CHECK-NEXT: [[TMP26:%.*]] = call i64 @llvm.vector.reduce.and.v2i64(<2 x i64> [[WIDE_LOAD9]])
; CHECK-NEXT: [[TMP27]] = and i64 [[TMP26]], [[VEC_PHI8]]
; CHECK-NEXT: [[INDEX_NEXT10]] = add nuw i64 [[INDEX7]], 2
; CHECK-NEXT: [[TMP28:%.*]] = icmp eq i64 [[INDEX_NEXT10]], [[N_VEC5]]
; CHECK-NEXT: br i1 [[TMP28]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK: vec.epilog.middle.block:
; CHECK-NEXT: [[CMP_N6:%.*]] = icmp eq i64 [[N]], [[N_VEC5]]
; CHECK-NEXT: br i1 [[CMP_N6]], label [[FOR_END]], label [[VEC_EPILOG_SCALAR_PH]]
; CHECK: vec.epilog.scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC5]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ]
; CHECK-NEXT: [[BC_MERGE_RDX11:%.*]] = phi i64 [ [[TMP27]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 1, [[ITER_CHECK]] ], [ [[BIN_RDX]], [[VEC_EPILOG_ITER_CHECK]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[IV_NEXT:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ]
; CHECK-NEXT: [[RDX:%.*]] = phi i64 [ [[AND:%.*]], [[FOR_BODY]] ], [ [[BC_MERGE_RDX11]], [[VEC_EPILOG_SCALAR_PH]] ]
; CHECK-NEXT: [[L2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[L3:%.*]] = load i64, ptr [[L2]], align 8
; CHECK-NEXT: [[AND]] = and i64 [[RDX]], [[L3]]
; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: [[AND_LCSSA:%.*]] = phi i64 [ [[AND]], [[FOR_BODY]] ], [ [[BIN_RDX]], [[MIDDLE_BLOCK]] ], [ [[TMP27]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i64 [[AND_LCSSA]]
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ %iv.next, %for.body ], [ 0, %entry ]
%rdx = phi i64 [ %and, %for.body ], [ 1, %entry ]
%l2 = getelementptr inbounds i64, ptr %a, i64 %iv
%l3 = load i64, ptr %l2
%and = and i64 %rdx, %l3
%iv.next = add i64 %iv, 1
%exitcond = icmp eq i64 %iv.next, %N
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret i64 %and
}
!0 = distinct !{!0, !1, !2}
!1 = !{!"llvm.loop.interleave.count", i32 2}
!2 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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