1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -mtriple=thumbv8.1m.main -mattr=+mve.fp -mve-tail-predication -tail-predication=enabled %s -S -o - | FileCheck %s 3 4define hidden i32 @_Z4loopPiPjiS0_i(i32* noalias nocapture readonly %s1, i32* noalias nocapture readonly %s2, i32 %x, i32* noalias nocapture %d, i32 %n) { 5; CHECK-LABEL: @_Z4loopPiPjiS0_i( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[CMP63:%.*]] = icmp sgt i32 [[N:%.*]], 0 8; CHECK-NEXT: br i1 [[CMP63]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_COND_CLEANUP:%.*]] 9; CHECK: for.body.lr.ph: 10; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[X:%.*]], 0 11; CHECK-NEXT: [[N_RND_UP77:%.*]] = add nuw i32 [[N]], 3 12; CHECK-NEXT: [[N_VEC79:%.*]] = and i32 [[N_RND_UP77]], -4 13; CHECK-NEXT: [[TRIP_COUNT_MINUS_183:%.*]] = add nsw i32 [[N]], -1 14; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[N_VEC79]], -4 15; CHECK-NEXT: [[TMP1:%.*]] = lshr i32 [[TMP0]], 2 16; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 1 17; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i32 [[TMP1]], 1 18; CHECK-NEXT: br i1 [[TOBOOL]], label [[VECTOR_BODY75_PREHEADER:%.*]], label [[VECTOR_PH:%.*]] 19; CHECK: vector.body75.preheader: 20; CHECK-NEXT: [[START1:%.*]] = call i32 @llvm.start.loop.iterations.i32(i32 [[TMP2]]) 21; CHECK-NEXT: br label [[VECTOR_BODY75:%.*]] 22; CHECK: vector.ph: 23; CHECK-NEXT: [[BROADCAST_SPLATINSERT71:%.*]] = insertelement <4 x i32> undef, i32 [[X]], i32 0 24; CHECK-NEXT: [[BROADCAST_SPLAT72:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT71]], <4 x i32> undef, <4 x i32> zeroinitializer 25; CHECK-NEXT: [[START2:%.*]] = call i32 @llvm.start.loop.iterations.i32(i32 [[TMP3]]) 26; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 27; CHECK: vector.body: 28; CHECK-NEXT: [[LSR_IV9:%.*]] = phi i32* [ [[SCEVGEP10:%.*]], [[VECTOR_BODY]] ], [ [[D:%.*]], [[VECTOR_PH]] ] 29; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 30; CHECK-NEXT: [[TMP4:%.*]] = phi i32 [ [[START2]], [[VECTOR_PH]] ], [ [[TMP10:%.*]], [[VECTOR_BODY]] ] 31; CHECK-NEXT: [[TMP5:%.*]] = phi i32 [ [[N]], [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ] 32; CHECK-NEXT: [[LSR_IV911:%.*]] = bitcast i32* [[LSR_IV9]] to <4 x i32>* 33; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> undef, i32 [[INDEX]], i32 0 34; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> undef, <4 x i32> zeroinitializer 35; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i32> [[BROADCAST_SPLAT]], <i32 0, i32 1, i32 2, i32 3> 36; CHECK-NEXT: [[TMP6:%.*]] = insertelement <4 x i32> undef, i32 [[TRIP_COUNT_MINUS_183]], i32 0 37; CHECK-NEXT: [[TMP7:%.*]] = shufflevector <4 x i32> [[TMP6]], <4 x i32> undef, <4 x i32> zeroinitializer 38; CHECK-NEXT: [[TMP8:%.*]] = call <4 x i1> @llvm.arm.mve.vctp32(i32 [[TMP5]]) 39; CHECK-NEXT: [[TMP9]] = sub i32 [[TMP5]], 4 40; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> [[BROADCAST_SPLAT72]], <4 x i32>* [[LSR_IV911]], i32 4, <4 x i1> [[TMP8]]) 41; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4 42; CHECK-NEXT: [[SCEVGEP10]] = getelementptr i32, i32* [[LSR_IV9]], i32 4 43; CHECK-NEXT: [[TMP10]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[TMP4]], i32 1) 44; CHECK-NEXT: [[TMP11:%.*]] = icmp ne i32 [[TMP10]], 0 45; CHECK-NEXT: br i1 [[TMP11]], label [[VECTOR_BODY]], label [[FOR_COND_CLEANUP]] 46; CHECK: vector.body75: 47; CHECK-NEXT: [[LSR_IV6:%.*]] = phi i32* [ [[S1:%.*]], [[VECTOR_BODY75_PREHEADER]] ], [ [[SCEVGEP7:%.*]], [[VECTOR_BODY75]] ] 48; CHECK-NEXT: [[LSR_IV3:%.*]] = phi i32* [ [[S2:%.*]], [[VECTOR_BODY75_PREHEADER]] ], [ [[SCEVGEP4:%.*]], [[VECTOR_BODY75]] ] 49; CHECK-NEXT: [[LSR_IV:%.*]] = phi i32* [ [[D]], [[VECTOR_BODY75_PREHEADER]] ], [ [[SCEVGEP:%.*]], [[VECTOR_BODY75]] ] 50; CHECK-NEXT: [[INDEX80:%.*]] = phi i32 [ [[INDEX_NEXT81:%.*]], [[VECTOR_BODY75]] ], [ 0, [[VECTOR_BODY75_PREHEADER]] ] 51; CHECK-NEXT: [[TMP12:%.*]] = phi i32 [ [[START1]], [[VECTOR_BODY75_PREHEADER]] ], [ [[TMP17:%.*]], [[VECTOR_BODY75]] ] 52; CHECK-NEXT: [[LSR_IV68:%.*]] = bitcast i32* [[LSR_IV6]] to <4 x i32>* 53; CHECK-NEXT: [[LSR_IV35:%.*]] = bitcast i32* [[LSR_IV3]] to <4 x i32>* 54; CHECK-NEXT: [[LSR_IV2:%.*]] = bitcast i32* [[LSR_IV]] to <4 x i32>* 55; CHECK-NEXT: [[BROADCAST_SPLATINSERT84:%.*]] = insertelement <4 x i32> undef, i32 [[INDEX80]], i32 0 56; CHECK-NEXT: [[BROADCAST_SPLAT85:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT84]], <4 x i32> undef, <4 x i32> zeroinitializer 57; CHECK-NEXT: [[INDUCTION86:%.*]] = add <4 x i32> [[BROADCAST_SPLAT85]], <i32 0, i32 1, i32 2, i32 3> 58; CHECK-NEXT: [[TMP13:%.*]] = insertelement <4 x i32> undef, i32 [[TRIP_COUNT_MINUS_183]], i32 0 59; CHECK-NEXT: [[TMP14:%.*]] = shufflevector <4 x i32> [[TMP13]], <4 x i32> undef, <4 x i32> zeroinitializer 60; CHECK-NEXT: [[TMP15:%.*]] = icmp ule <4 x i32> [[INDUCTION86]], [[TMP14]] 61; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* [[LSR_IV68]], i32 4, <4 x i1> [[TMP15]], <4 x i32> undef) 62; CHECK-NEXT: [[WIDE_MASKED_LOAD89:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* [[LSR_IV35]], i32 4, <4 x i1> [[TMP15]], <4 x i32> undef) 63; CHECK-NEXT: [[TMP16:%.*]] = call <4 x i32> @llvm.usub.sat.v4i32(<4 x i32> [[WIDE_MASKED_LOAD89]], <4 x i32> [[WIDE_MASKED_LOAD]]) 64; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> [[TMP16]], <4 x i32>* [[LSR_IV2]], i32 4, <4 x i1> [[TMP15]]) 65; CHECK-NEXT: [[INDEX_NEXT81]] = add i32 [[INDEX80]], 4 66; CHECK-NEXT: [[SCEVGEP]] = getelementptr i32, i32* [[LSR_IV]], i32 4 67; CHECK-NEXT: [[SCEVGEP4]] = getelementptr i32, i32* [[LSR_IV3]], i32 4 68; CHECK-NEXT: [[SCEVGEP7]] = getelementptr i32, i32* [[LSR_IV6]], i32 4 69; CHECK-NEXT: [[TMP17]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[TMP12]], i32 1) 70; CHECK-NEXT: [[TMP18:%.*]] = icmp ne i32 [[TMP17]], 0 71; CHECK-NEXT: br i1 [[TMP18]], label [[VECTOR_BODY75]], label [[FOR_COND_CLEANUP]] 72; CHECK: for.cond.cleanup: 73; CHECK-NEXT: ret i32 0 74; 75entry: 76 %cmp63 = icmp sgt i32 %n, 0 77 br i1 %cmp63, label %for.body.lr.ph, label %for.cond.cleanup 78 79for.body.lr.ph: ; preds = %entry 80 %tobool = icmp eq i32 %x, 0 81 %n.rnd.up77 = add nuw i32 %n, 3 82 %n.vec79 = and i32 %n.rnd.up77, -4 83 %trip.count.minus.183 = add nsw i32 %n, -1 84 %0 = add i32 %n.vec79, -4 85 %1 = lshr i32 %0, 2 86 %2 = add nuw nsw i32 %1, 1 87 %3 = add nuw nsw i32 %1, 1 88 br i1 %tobool, label %vector.body75.preheader, label %vector.ph 89 90vector.body75.preheader: ; preds = %for.body.lr.ph 91 %start1 = call i32 @llvm.start.loop.iterations.i32(i32 %2) 92 br label %vector.body75 93 94vector.ph: ; preds = %for.body.lr.ph 95 %broadcast.splatinsert71 = insertelement <4 x i32> undef, i32 %x, i32 0 96 %broadcast.splat72 = shufflevector <4 x i32> %broadcast.splatinsert71, <4 x i32> undef, <4 x i32> zeroinitializer 97 %start2 = call i32 @llvm.start.loop.iterations.i32(i32 %3) 98 br label %vector.body 99 100vector.body: ; preds = %vector.body, %vector.ph 101 %lsr.iv9 = phi i32* [ %scevgep10, %vector.body ], [ %d, %vector.ph ] 102 %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ] 103 %4 = phi i32 [ %start2, %vector.ph ], [ %8, %vector.body ] 104 %lsr.iv911 = bitcast i32* %lsr.iv9 to <4 x i32>* 105 %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0 106 %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer 107 %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3> 108 %5 = insertelement <4 x i32> undef, i32 %trip.count.minus.183, i32 0 109 %6 = shufflevector <4 x i32> %5, <4 x i32> undef, <4 x i32> zeroinitializer 110 %7 = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %index, i32 %n) 111 call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %broadcast.splat72, <4 x i32>* %lsr.iv911, i32 4, <4 x i1> %7) 112 %index.next = add i32 %index, 4 113 %scevgep10 = getelementptr i32, i32* %lsr.iv9, i32 4 114 %8 = call i32 @llvm.loop.decrement.reg.i32(i32 %4, i32 1) 115 %9 = icmp ne i32 %8, 0 116 br i1 %9, label %vector.body, label %for.cond.cleanup 117 118vector.body75: ; preds = %vector.body75, %vector.body75.preheader 119 %lsr.iv6 = phi i32* [ %s1, %vector.body75.preheader ], [ %scevgep7, %vector.body75 ] 120 %lsr.iv3 = phi i32* [ %s2, %vector.body75.preheader ], [ %scevgep4, %vector.body75 ] 121 %lsr.iv = phi i32* [ %d, %vector.body75.preheader ], [ %scevgep, %vector.body75 ] 122 %index80 = phi i32 [ %index.next81, %vector.body75 ], [ 0, %vector.body75.preheader ] 123 %10 = phi i32 [ %start1, %vector.body75.preheader ], [ %15, %vector.body75 ] 124 %lsr.iv68 = bitcast i32* %lsr.iv6 to <4 x i32>* 125 %lsr.iv35 = bitcast i32* %lsr.iv3 to <4 x i32>* 126 %lsr.iv2 = bitcast i32* %lsr.iv to <4 x i32>* 127 %broadcast.splatinsert84 = insertelement <4 x i32> undef, i32 %index80, i32 0 128 %broadcast.splat85 = shufflevector <4 x i32> %broadcast.splatinsert84, <4 x i32> undef, <4 x i32> zeroinitializer 129 %induction86 = add <4 x i32> %broadcast.splat85, <i32 0, i32 1, i32 2, i32 3> 130 %11 = insertelement <4 x i32> undef, i32 %trip.count.minus.183, i32 0 131 %12 = shufflevector <4 x i32> %11, <4 x i32> undef, <4 x i32> zeroinitializer 132 %13 = icmp ule <4 x i32> %induction86, %12 133 %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %lsr.iv68, i32 4, <4 x i1> %13, <4 x i32> undef) 134 %wide.masked.load89 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %lsr.iv35, i32 4, <4 x i1> %13, <4 x i32> undef) 135 %14 = call <4 x i32> @llvm.usub.sat.v4i32(<4 x i32> %wide.masked.load89, <4 x i32> %wide.masked.load) 136 call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %14, <4 x i32>* %lsr.iv2, i32 4, <4 x i1> %13) 137 %index.next81 = add i32 %index80, 4 138 %scevgep = getelementptr i32, i32* %lsr.iv, i32 4 139 %scevgep4 = getelementptr i32, i32* %lsr.iv3, i32 4 140 %scevgep7 = getelementptr i32, i32* %lsr.iv6, i32 4 141 %15 = call i32 @llvm.loop.decrement.reg.i32(i32 %10, i32 1) 142 %16 = icmp ne i32 %15, 0 143 br i1 %16, label %vector.body75, label %for.cond.cleanup 144 145for.cond.cleanup: ; preds = %vector.body, %vector.body75, %entry 146 ret i32 0 147} 148declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>) 149declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>) 150declare <4 x i32> @llvm.usub.sat.v4i32(<4 x i32>, <4 x i32>) 151declare i32 @llvm.start.loop.iterations.i32(i32) 152declare i32 @llvm.loop.decrement.reg.i32(i32, i32) 153 154declare <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32, i32) 155declare <8 x i1> @llvm.get.active.lane.mask.v8i1.i32(i32, i32) 156declare <16 x i1> @llvm.get.active.lane.mask.v16i1.i32(i32, i32) 157