1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -loop-vectorize -mtriple=aarch64-unknown -mattr=+sve -S %s | FileCheck %s 3 4define ptr @test(ptr %start.1, ptr %start.2, ptr %end) { 5; CHECK-LABEL: @test( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[START_22:%.*]] = ptrtoint ptr [[START_2:%.*]] to i64 8; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i64 9; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], -8 10; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START_22]] 11; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 3 12; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[TMP2]], 1 13; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() 14; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4 15; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP3]], [[TMP5]] 16; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 17; CHECK: vector.ph: 18; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64() 19; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4 20; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP3]], [[TMP7]] 21; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP3]], [[N_MOD_VF]] 22; CHECK-NEXT: [[TMP8:%.*]] = mul i64 [[N_VEC]], 8 23; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[START_1:%.*]], i64 [[TMP8]] 24; CHECK-NEXT: [[TMP9:%.*]] = mul i64 [[N_VEC]], 8 25; CHECK-NEXT: [[IND_END4:%.*]] = getelementptr i8, ptr [[START_2]], i64 [[TMP9]] 26; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 27; CHECK: vector.body: 28; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ [[START_1]], [[VECTOR_PH]] ], [ [[PTR_IND:%.*]], [[VECTOR_BODY]] ] 29; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 30; CHECK-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64() 31; CHECK-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 2 32; CHECK-NEXT: [[TMP12:%.*]] = mul i64 [[TMP11]], 2 33; CHECK-NEXT: [[TMP13:%.*]] = mul i64 8, [[TMP12]] 34; CHECK-NEXT: [[TMP14:%.*]] = mul i64 [[TMP11]], 0 35; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[TMP14]], i32 0 36; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[DOTSPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer 37; CHECK-NEXT: [[TMP15:%.*]] = call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64() 38; CHECK-NEXT: [[TMP16:%.*]] = add <vscale x 2 x i64> [[DOTSPLAT]], [[TMP15]] 39; CHECK-NEXT: [[VECTOR_GEP:%.*]] = mul <vscale x 2 x i64> [[TMP16]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 8, i32 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer) 40; CHECK-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <vscale x 2 x i64> [[VECTOR_GEP]] 41; CHECK-NEXT: [[TMP18:%.*]] = mul i64 [[TMP11]], 1 42; CHECK-NEXT: [[DOTSPLATINSERT5:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[TMP18]], i32 0 43; CHECK-NEXT: [[DOTSPLAT6:%.*]] = shufflevector <vscale x 2 x i64> [[DOTSPLATINSERT5]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer 44; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 2 x i64> @llvm.experimental.stepvector.nxv2i64() 45; CHECK-NEXT: [[TMP20:%.*]] = add <vscale x 2 x i64> [[DOTSPLAT6]], [[TMP19]] 46; CHECK-NEXT: [[VECTOR_GEP7:%.*]] = mul <vscale x 2 x i64> [[TMP20]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 8, i32 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer) 47; CHECK-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <vscale x 2 x i64> [[VECTOR_GEP7]] 48; CHECK-NEXT: [[TMP22:%.*]] = add i64 [[INDEX]], 0 49; CHECK-NEXT: [[TMP23:%.*]] = mul i64 [[TMP22]], 8 50; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START_2]], i64 [[TMP23]] 51; CHECK-NEXT: [[TMP24:%.*]] = call i64 @llvm.vscale.i64() 52; CHECK-NEXT: [[TMP25:%.*]] = mul i64 [[TMP24]], 2 53; CHECK-NEXT: [[TMP26:%.*]] = add i64 [[TMP25]], 0 54; CHECK-NEXT: [[TMP27:%.*]] = add i64 [[INDEX]], [[TMP26]] 55; CHECK-NEXT: [[TMP28:%.*]] = mul i64 [[TMP27]], 8 56; CHECK-NEXT: [[NEXT_GEP8:%.*]] = getelementptr i8, ptr [[START_2]], i64 [[TMP28]] 57; CHECK-NEXT: [[TMP29:%.*]] = getelementptr i64, ptr [[NEXT_GEP]], i32 0 58; CHECK-NEXT: store <vscale x 2 x i64> zeroinitializer, ptr [[TMP29]], align 4 59; CHECK-NEXT: [[TMP30:%.*]] = call i32 @llvm.vscale.i32() 60; CHECK-NEXT: [[TMP31:%.*]] = mul i32 [[TMP30]], 2 61; CHECK-NEXT: [[TMP32:%.*]] = getelementptr i64, ptr [[NEXT_GEP]], i32 [[TMP31]] 62; CHECK-NEXT: store <vscale x 2 x i64> zeroinitializer, ptr [[TMP32]], align 4 63; CHECK-NEXT: [[TMP33:%.*]] = call i64 @llvm.vscale.i64() 64; CHECK-NEXT: [[TMP34:%.*]] = mul i64 [[TMP33]], 4 65; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP34]] 66; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i64 [[TMP13]] 67; CHECK-NEXT: [[TMP35:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 68; CHECK-NEXT: br i1 [[TMP35]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 69; CHECK: middle.block: 70; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP3]], [[N_VEC]] 71; CHECK-NEXT: [[CAST_CMO:%.*]] = sub i64 [[N_VEC]], 1 72; CHECK-NEXT: [[TMP36:%.*]] = mul i64 [[CAST_CMO]], 8 73; CHECK-NEXT: [[IND_ESCAPE:%.*]] = getelementptr i8, ptr [[START_1]], i64 [[TMP36]] 74; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] 75; CHECK: scalar.ph: 76; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[START_1]], [[ENTRY:%.*]] ] 77; CHECK-NEXT: [[BC_RESUME_VAL3:%.*]] = phi ptr [ [[IND_END4]], [[MIDDLE_BLOCK]] ], [ [[START_2]], [[ENTRY]] ] 78; CHECK-NEXT: br label [[LOOP:%.*]] 79; CHECK: loop: 80; CHECK-NEXT: [[IV_1:%.*]] = phi ptr [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_1_NEXT:%.*]], [[LOOP]] ] 81; CHECK-NEXT: [[IV_2:%.*]] = phi ptr [ [[BC_RESUME_VAL3]], [[SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[LOOP]] ] 82; CHECK-NEXT: store i64 0, ptr [[IV_2]], align 4 83; CHECK-NEXT: [[IV_2_NEXT]] = getelementptr inbounds ptr, ptr [[IV_2]], i64 1 84; CHECK-NEXT: [[IV_1_NEXT]] = getelementptr inbounds ptr, ptr [[IV_1]], i64 1 85; CHECK-NEXT: [[CMP_I_I_NOT_I:%.*]] = icmp eq ptr [[IV_2_NEXT]], [[END]] 86; CHECK-NEXT: br i1 [[CMP_I_I_NOT_I]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP2:![0-9]+]] 87; CHECK: exit: 88; CHECK-NEXT: [[RES_LCSSA:%.*]] = phi ptr [ [[IV_1]], [[LOOP]] ], [ [[IND_ESCAPE]], [[MIDDLE_BLOCK]] ] 89; CHECK-NEXT: ret ptr [[RES_LCSSA]] 90; 91entry: 92 br label %loop 93 94loop: 95 %iv.1 = phi ptr [ %start.1, %entry ], [ %iv.1.next, %loop ] 96 %iv.2 = phi ptr [ %start.2, %entry ], [ %iv.2.next, %loop ] 97 store i64 0, ptr %iv.2 98 %iv.2.next = getelementptr inbounds ptr, ptr %iv.2, i64 1 99 %iv.1.next = getelementptr inbounds ptr, ptr %iv.1, i64 1 100 %cmp.i.i.not.i = icmp eq ptr %iv.2.next, %end 101 br i1 %cmp.i.i.not.i, label %exit, label %loop 102 103exit: 104 %res.lcssa = phi ptr [ %iv.1, %loop ] 105 ret ptr %res.lcssa 106} 107