llvm-for-llvmta/test/CodeGen/Thumb2/LowOverheadLoops/nested.ll

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2022-04-25 10:02:23 +02:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=armv8.1m.main -mattr=+mve -S -mve-tail-predication -tail-predication=enabled %s -o - | FileCheck %s
define void @mat_vec_sext_i16(i16** nocapture readonly %A, i16* nocapture readonly %B, i32* noalias nocapture %C, i32 %N) {
; CHECK-LABEL: @mat_vec_sext_i16(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP24:%.*]] = icmp eq i32 [[N:%.*]], 0
; CHECK-NEXT: br i1 [[CMP24]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_COND1_PREHEADER_US_PREHEADER:%.*]]
; CHECK: for.cond1.preheader.us.preheader:
; CHECK-NEXT: [[N_RND_UP:%.*]] = add i32 [[N]], 3
; CHECK-NEXT: [[N_VEC:%.*]] = and i32 [[N_RND_UP]], -4
; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = add i32 [[N]], -1
; CHECK-NEXT: [[BROADCAST_SPLATINSERT28:%.*]] = insertelement <4 x i32> undef, i32 [[TRIP_COUNT_MINUS_1]], i32 0
; CHECK-NEXT: [[BROADCAST_SPLAT29:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT28]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TT:%.*]] = add i32 [[N_VEC]], -4
; CHECK-NEXT: [[TT1:%.*]] = lshr i32 [[TT]], 2
; CHECK-NEXT: [[TT2:%.*]] = add nuw nsw i32 [[TT1]], 1
; CHECK-NEXT: br label [[FOR_COND1_PREHEADER_US:%.*]]
; CHECK: for.cond1.preheader.us:
; CHECK-NEXT: [[I_025_US:%.*]] = phi i32 [ [[INC10_US:%.*]], [[MIDDLE_BLOCK:%.*]] ], [ 0, [[FOR_COND1_PREHEADER_US_PREHEADER]] ]
; CHECK-NEXT: [[ARRAYIDX_US:%.*]] = getelementptr inbounds i16*, i16** [[A:%.*]], i32 [[I_025_US]]
; CHECK-NEXT: [[TT3:%.*]] = load i16*, i16** [[ARRAYIDX_US]], align 4
; CHECK-NEXT: [[ARRAYIDX8_US:%.*]] = getelementptr inbounds i32, i32* [[C:%.*]], i32 [[I_025_US]]
; CHECK-NEXT: [[ARRAYIDX8_PROMOTED_US:%.*]] = load i32, i32* [[ARRAYIDX8_US]], align 4
; CHECK-NEXT: [[TT4:%.*]] = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 [[ARRAYIDX8_PROMOTED_US]], i32 0
; CHECK-NEXT: [[START:%.*]] = call i32 @llvm.start.loop.iterations.i32(i32 [[TT2]])
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER_US]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ [[TT4]], [[FOR_COND1_PREHEADER_US]] ], [ [[TT14:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TT5:%.*]] = phi i32 [ [[START]], [[FOR_COND1_PREHEADER_US]] ], [ [[TT15:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ [[N]], [[FOR_COND1_PREHEADER_US]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> undef, i32 [[INDEX]], i32 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT: [[TT6:%.*]] = getelementptr inbounds i16, i16* [[TT3]], i32 [[INDEX]]
; CHECK-NEXT: [[TMP1:%.*]] = call <4 x i1> @llvm.arm.mve.vctp32(i32 [[TMP0]])
; CHECK-NEXT: [[TMP2]] = sub i32 [[TMP0]], 4
; CHECK-NEXT: [[TT8:%.*]] = bitcast i16* [[TT6]] to <4 x i16>*
; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* [[TT8]], i32 2, <4 x i1> [[TMP1]], <4 x i16> undef)
; CHECK-NEXT: [[TT9:%.*]] = sext <4 x i16> [[WIDE_MASKED_LOAD]] to <4 x i32>
; CHECK-NEXT: [[TT10:%.*]] = getelementptr inbounds i16, i16* [[B:%.*]], i32 [[INDEX]]
; CHECK-NEXT: [[TT11:%.*]] = bitcast i16* [[TT10]] to <4 x i16>*
; CHECK-NEXT: [[WIDE_MASKED_LOAD30:%.*]] = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* [[TT11]], i32 2, <4 x i1> [[TMP1]], <4 x i16> undef)
; CHECK-NEXT: [[TT12:%.*]] = sext <4 x i16> [[WIDE_MASKED_LOAD30]] to <4 x i32>
; CHECK-NEXT: [[TT13:%.*]] = mul nsw <4 x i32> [[TT12]], [[TT9]]
; CHECK-NEXT: [[TT14]] = add nsw <4 x i32> [[TT13]], [[VEC_PHI]]
; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4
; CHECK-NEXT: [[TT15]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[TT5]], i32 1)
; CHECK-NEXT: [[TT16:%.*]] = icmp ne i32 [[TT15]], 0
; CHECK-NEXT: br i1 [[TT16]], label [[VECTOR_BODY]], label [[MIDDLE_BLOCK]]
; CHECK: middle.block:
; CHECK-NEXT: [[TT17:%.*]] = select <4 x i1> [[TMP1]], <4 x i32> [[TT14]], <4 x i32> [[VEC_PHI]]
; CHECK-NEXT: [[TT18:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TT17]])
; CHECK-NEXT: store i32 [[TT18]], i32* [[ARRAYIDX8_US]], align 4
; CHECK-NEXT: [[INC10_US]] = add nuw i32 [[I_025_US]], 1
; CHECK-NEXT: [[EXITCOND27:%.*]] = icmp eq i32 [[INC10_US]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND27]], label [[FOR_COND_CLEANUP]], label [[FOR_COND1_PREHEADER_US]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
;
entry:
%cmp24 = icmp eq i32 %N, 0
br i1 %cmp24, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
for.cond1.preheader.us.preheader: ; preds = %entry
%n.rnd.up = add i32 %N, 3
%n.vec = and i32 %n.rnd.up, -4
%trip.count.minus.1 = add i32 %N, -1
%broadcast.splatinsert28 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
%broadcast.splat29 = shufflevector <4 x i32> %broadcast.splatinsert28, <4 x i32> undef, <4 x i32> zeroinitializer
%tt = add i32 %n.vec, -4
%tt1 = lshr i32 %tt, 2
%tt2 = add nuw nsw i32 %tt1, 1
br label %for.cond1.preheader.us
for.cond1.preheader.us: ; preds = %middle.block, %for.cond1.preheader.us.preheader
%i.025.us = phi i32 [ %inc10.us, %middle.block ], [ 0, %for.cond1.preheader.us.preheader ]
%arrayidx.us = getelementptr inbounds i16*, i16** %A, i32 %i.025.us
%tt3 = load i16*, i16** %arrayidx.us, align 4
%arrayidx8.us = getelementptr inbounds i32, i32* %C, i32 %i.025.us
%arrayidx8.promoted.us = load i32, i32* %arrayidx8.us, align 4
%tt4 = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 %arrayidx8.promoted.us, i32 0
%start = call i32 @llvm.start.loop.iterations.i32(i32 %tt2)
br label %vector.body
vector.body: ; preds = %vector.body, %for.cond1.preheader.us
%index = phi i32 [ 0, %for.cond1.preheader.us ], [ %index.next, %vector.body ]
%vec.phi = phi <4 x i32> [ %tt4, %for.cond1.preheader.us ], [ %tt14, %vector.body ]
%tt5 = phi i32 [ %start, %for.cond1.preheader.us ], [ %tt15, %vector.body ]
%broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
%broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
%induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
%tt6 = getelementptr inbounds i16, i16* %tt3, i32 %index
; %tt7 = icmp ule <4 x i32> %induction, %broadcast.splat29
%tt7 = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %index, i32 %N)
%tt8 = bitcast i16* %tt6 to <4 x i16>*
%wide.masked.load = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* %tt8, i32 2, <4 x i1> %tt7, <4 x i16> undef)
%tt9 = sext <4 x i16> %wide.masked.load to <4 x i32>
%tt10 = getelementptr inbounds i16, i16* %B, i32 %index
%tt11 = bitcast i16* %tt10 to <4 x i16>*
%wide.masked.load30 = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* %tt11, i32 2, <4 x i1> %tt7, <4 x i16> undef)
%tt12 = sext <4 x i16> %wide.masked.load30 to <4 x i32>
%tt13 = mul nsw <4 x i32> %tt12, %tt9
%tt14 = add nsw <4 x i32> %tt13, %vec.phi
%index.next = add i32 %index, 4
%tt15 = call i32 @llvm.loop.decrement.reg.i32(i32 %tt5, i32 1)
%tt16 = icmp ne i32 %tt15, 0
br i1 %tt16, label %vector.body, label %middle.block
middle.block: ; preds = %vector.body
%tt17 = select <4 x i1> %tt7, <4 x i32> %tt14, <4 x i32> %vec.phi
%tt18 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %tt17)
store i32 %tt18, i32* %arrayidx8.us, align 4
%inc10.us = add nuw i32 %i.025.us, 1
%exitcond27 = icmp eq i32 %inc10.us, %N
br i1 %exitcond27, label %for.cond.cleanup, label %for.cond1.preheader.us
for.cond.cleanup: ; preds = %middle.block, %entry
ret void
}
define void @mat_vec_i32(i32** nocapture readonly %A, i32* nocapture readonly %B, i32* noalias nocapture %C, i32 %N) {
; CHECK-LABEL: @mat_vec_i32(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP23:%.*]] = icmp eq i32 [[N:%.*]], 0
; CHECK-NEXT: br i1 [[CMP23]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_COND1_PREHEADER_US_PREHEADER:%.*]]
; CHECK: for.cond1.preheader.us.preheader:
; CHECK-NEXT: [[N_RND_UP:%.*]] = add i32 [[N]], 3
; CHECK-NEXT: [[N_VEC:%.*]] = and i32 [[N_RND_UP]], -4
; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = add i32 [[N]], -1
; CHECK-NEXT: [[BROADCAST_SPLATINSERT27:%.*]] = insertelement <4 x i32> undef, i32 [[TRIP_COUNT_MINUS_1]], i32 0
; CHECK-NEXT: [[BROADCAST_SPLAT28:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT27]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TT:%.*]] = add i32 [[N_VEC]], -4
; CHECK-NEXT: [[TT1:%.*]] = lshr i32 [[TT]], 2
; CHECK-NEXT: [[TT2:%.*]] = add nuw nsw i32 [[TT1]], 1
; CHECK-NEXT: br label [[FOR_COND1_PREHEADER_US:%.*]]
; CHECK: for.cond1.preheader.us:
; CHECK-NEXT: [[I_024_US:%.*]] = phi i32 [ [[INC9_US:%.*]], [[MIDDLE_BLOCK:%.*]] ], [ 0, [[FOR_COND1_PREHEADER_US_PREHEADER]] ]
; CHECK-NEXT: [[ARRAYIDX_US:%.*]] = getelementptr inbounds i32*, i32** [[A:%.*]], i32 [[I_024_US]]
; CHECK-NEXT: [[TT3:%.*]] = load i32*, i32** [[ARRAYIDX_US]], align 4
; CHECK-NEXT: [[ARRAYIDX7_US:%.*]] = getelementptr inbounds i32, i32* [[C:%.*]], i32 [[I_024_US]]
; CHECK-NEXT: [[ARRAYIDX7_PROMOTED_US:%.*]] = load i32, i32* [[ARRAYIDX7_US]], align 4
; CHECK-NEXT: [[TT4:%.*]] = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 [[ARRAYIDX7_PROMOTED_US]], i32 0
; CHECK-NEXT: [[START:%.*]] = call i32 @llvm.start.loop.iterations.i32(i32 [[TT2]])
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER_US]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ [[TT4]], [[FOR_COND1_PREHEADER_US]] ], [ [[TT12:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TT5:%.*]] = phi i32 [ [[START]], [[FOR_COND1_PREHEADER_US]] ], [ [[TT13:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ [[N]], [[FOR_COND1_PREHEADER_US]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> undef, i32 [[INDEX]], i32 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT: [[TT6:%.*]] = getelementptr inbounds i32, i32* [[TT3]], i32 [[INDEX]]
; CHECK-NEXT: [[TMP1:%.*]] = call <4 x i1> @llvm.arm.mve.vctp32(i32 [[TMP0]])
; CHECK-NEXT: [[TMP2]] = sub i32 [[TMP0]], 4
; CHECK-NEXT: [[TT8:%.*]] = bitcast i32* [[TT6]] to <4 x i32>*
; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* [[TT8]], i32 4, <4 x i1> [[TMP1]], <4 x i32> undef)
; CHECK-NEXT: [[TT9:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i32 [[INDEX]]
; CHECK-NEXT: [[TT10:%.*]] = bitcast i32* [[TT9]] to <4 x i32>*
; CHECK-NEXT: [[WIDE_MASKED_LOAD29:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* [[TT10]], i32 4, <4 x i1> [[TMP1]], <4 x i32> undef)
; CHECK-NEXT: [[TT11:%.*]] = mul nsw <4 x i32> [[WIDE_MASKED_LOAD29]], [[WIDE_MASKED_LOAD]]
; CHECK-NEXT: [[TT12]] = add nsw <4 x i32> [[VEC_PHI]], [[TT11]]
; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4
; CHECK-NEXT: [[TT13]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[TT5]], i32 1)
; CHECK-NEXT: [[TT14:%.*]] = icmp ne i32 [[TT13]], 0
; CHECK-NEXT: br i1 [[TT14]], label [[VECTOR_BODY]], label [[MIDDLE_BLOCK]]
; CHECK: middle.block:
; CHECK-NEXT: [[TT15:%.*]] = select <4 x i1> [[TMP1]], <4 x i32> [[TT12]], <4 x i32> [[VEC_PHI]]
; CHECK-NEXT: [[TT16:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TT15]])
; CHECK-NEXT: store i32 [[TT16]], i32* [[ARRAYIDX7_US]], align 4
; CHECK-NEXT: [[INC9_US]] = add nuw i32 [[I_024_US]], 1
; CHECK-NEXT: [[EXITCOND26:%.*]] = icmp eq i32 [[INC9_US]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND26]], label [[FOR_COND_CLEANUP]], label [[FOR_COND1_PREHEADER_US]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
;
entry:
%cmp23 = icmp eq i32 %N, 0
br i1 %cmp23, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
for.cond1.preheader.us.preheader: ; preds = %entry
%n.rnd.up = add i32 %N, 3
%n.vec = and i32 %n.rnd.up, -4
%trip.count.minus.1 = add i32 %N, -1
%broadcast.splatinsert27 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
%broadcast.splat28 = shufflevector <4 x i32> %broadcast.splatinsert27, <4 x i32> undef, <4 x i32> zeroinitializer
%tt = add i32 %n.vec, -4
%tt1 = lshr i32 %tt, 2
%tt2 = add nuw nsw i32 %tt1, 1
br label %for.cond1.preheader.us
for.cond1.preheader.us: ; preds = %middle.block, %for.cond1.preheader.us.preheader
%i.024.us = phi i32 [ %inc9.us, %middle.block ], [ 0, %for.cond1.preheader.us.preheader ]
%arrayidx.us = getelementptr inbounds i32*, i32** %A, i32 %i.024.us
%tt3 = load i32*, i32** %arrayidx.us, align 4
%arrayidx7.us = getelementptr inbounds i32, i32* %C, i32 %i.024.us
%arrayidx7.promoted.us = load i32, i32* %arrayidx7.us, align 4
%tt4 = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 %arrayidx7.promoted.us, i32 0
%start = call i32 @llvm.start.loop.iterations.i32(i32 %tt2)
br label %vector.body
vector.body: ; preds = %vector.body, %for.cond1.preheader.us
%index = phi i32 [ 0, %for.cond1.preheader.us ], [ %index.next, %vector.body ]
%vec.phi = phi <4 x i32> [ %tt4, %for.cond1.preheader.us ], [ %tt12, %vector.body ]
%tt5 = phi i32 [ %start, %for.cond1.preheader.us ], [ %tt13, %vector.body ]
%broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
%broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
%induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
%tt6 = getelementptr inbounds i32, i32* %tt3, i32 %index
; %tt7 = icmp ule <4 x i32> %induction, %broadcast.splat28
%tt7 = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %index, i32 %N)
%tt8 = bitcast i32* %tt6 to <4 x i32>*
%wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %tt8, i32 4, <4 x i1> %tt7, <4 x i32> undef)
%tt9 = getelementptr inbounds i32, i32* %B, i32 %index
%tt10 = bitcast i32* %tt9 to <4 x i32>*
%wide.masked.load29 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %tt10, i32 4, <4 x i1> %tt7, <4 x i32> undef)
%tt11 = mul nsw <4 x i32> %wide.masked.load29, %wide.masked.load
%tt12 = add nsw <4 x i32> %vec.phi, %tt11
%index.next = add i32 %index, 4
%tt13 = call i32 @llvm.loop.decrement.reg.i32(i32 %tt5, i32 1)
%tt14 = icmp ne i32 %tt13, 0
br i1 %tt14, label %vector.body, label %middle.block
middle.block: ; preds = %vector.body
%tt15 = select <4 x i1> %tt7, <4 x i32> %tt12, <4 x i32> %vec.phi
%tt16 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %tt15)
store i32 %tt16, i32* %arrayidx7.us, align 4
%inc9.us = add nuw i32 %i.024.us, 1
%exitcond26 = icmp eq i32 %inc9.us, %N
br i1 %exitcond26, label %for.cond.cleanup, label %for.cond1.preheader.us
for.cond.cleanup: ; preds = %middle.block, %entry
ret void
}
; Function Attrs: argmemonly nounwind readonly willreturn
declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>) #0
; Function Attrs: argmemonly nounwind readonly willreturn
declare <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>*, i32 immarg, <4 x i1>, <4 x i16>) #0
; Function Attrs: nounwind readnone willreturn
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>) #1
; Function Attrs: noduplicate nounwind
declare i32 @llvm.start.loop.iterations.i32(i32) #2
; Function Attrs: noduplicate nounwind
declare i32 @llvm.loop.decrement.reg.i32(i32, i32) #2
declare <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32, i32)
attributes #0 = { argmemonly nounwind readonly willreturn }
attributes #1 = { nounwind readnone willreturn }
attributes #2 = { noduplicate nounwind }