1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; This is the loop in c++ being vectorize in this file with 3;experimental.vector.reverse 4; #pragma clang loop vectorize_width(8, scalable) 5; for (int i = N-1; i >= 0; --i) 6; a[i] = b[i] + 1.0; 7 8; RUN: opt -loop-vectorize -scalable-vectorization=on -dce -instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s 9 10define void @vector_reverse_f64(i64 %N, double* %a, double* %b) #0{ 11; CHECK-LABEL: @vector_reverse_f64( 12; CHECK-NEXT: entry: 13; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i64 [[N:%.*]], 0 14; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] 15; CHECK: for.body.preheader: 16; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() 17; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[TMP0]], 3 18; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ugt i64 [[TMP1]], [[N]] 19; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] 20; CHECK: vector.memcheck: 21; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr double, double* [[A:%.*]], i64 [[N]] 22; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr double, double* [[B:%.*]], i64 [[N]] 23; CHECK-NEXT: [[BOUND0:%.*]] = icmp ugt double* [[SCEVGEP4]], [[A]] 24; CHECK-NEXT: [[BOUND1:%.*]] = icmp ugt double* [[SCEVGEP]], [[B]] 25; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 26; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] 27; CHECK: vector.ph: 28; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() 29; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[TMP2]], 3 30; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]] 31; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 32; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 33; CHECK: vector.body: 34; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 35; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[INDEX]], -1 36; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[TMP4]], [[N]] 37; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds double, double* [[B]], i64 [[TMP5]] 38; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vscale.i32() 39; CHECK-NEXT: [[DOTNEG:%.*]] = mul i32 [[TMP7]], -8 40; CHECK-NEXT: [[TMP8:%.*]] = or i32 [[DOTNEG]], 1 41; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64 42; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds double, double* [[TMP6]], i64 [[TMP9]] 43; CHECK-NEXT: [[TMP11:%.*]] = bitcast double* [[TMP10]] to <vscale x 8 x double>* 44; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x double>, <vscale x 8 x double>* [[TMP11]], align 8, !alias.scope !0 45; CHECK-NEXT: [[REVERSE:%.*]] = call <vscale x 8 x double> @llvm.experimental.vector.reverse.nxv8f64(<vscale x 8 x double> [[WIDE_LOAD]]) 46; CHECK-NEXT: [[TMP12:%.*]] = fadd <vscale x 8 x double> [[REVERSE]], shufflevector (<vscale x 8 x double> insertelement (<vscale x 8 x double> poison, double 1.000000e+00, i32 0), <vscale x 8 x double> poison, <vscale x 8 x i32> zeroinitializer) 47; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds double, double* [[A]], i64 [[TMP5]] 48; CHECK-NEXT: [[REVERSE6:%.*]] = call <vscale x 8 x double> @llvm.experimental.vector.reverse.nxv8f64(<vscale x 8 x double> [[TMP12]]) 49; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vscale.i32() 50; CHECK-NEXT: [[DOTNEG7:%.*]] = mul i32 [[TMP14]], -8 51; CHECK-NEXT: [[TMP15:%.*]] = or i32 [[DOTNEG7]], 1 52; CHECK-NEXT: [[TMP16:%.*]] = sext i32 [[TMP15]] to i64 53; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds double, double* [[TMP13]], i64 [[TMP16]] 54; CHECK-NEXT: [[TMP18:%.*]] = bitcast double* [[TMP17]] to <vscale x 8 x double>* 55; CHECK-NEXT: store <vscale x 8 x double> [[REVERSE6]], <vscale x 8 x double>* [[TMP18]], align 8, !alias.scope !3, !noalias !0 56; CHECK-NEXT: [[TMP19:%.*]] = call i64 @llvm.vscale.i64() 57; CHECK-NEXT: [[TMP20:%.*]] = shl i64 [[TMP19]], 3 58; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP20]] 59; CHECK-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 60; CHECK-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 61; CHECK: middle.block: 62; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_MOD_VF]], 0 63; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]] 64; CHECK: scalar.ph: 65; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_MOD_VF]], [[MIDDLE_BLOCK]] ], [ [[N]], [[FOR_BODY_PREHEADER]] ], [ [[N]], [[VECTOR_MEMCHECK]] ] 66; CHECK-NEXT: br label [[FOR_BODY:%.*]] 67; CHECK: for.cond.cleanup.loopexit: 68; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] 69; CHECK: for.cond.cleanup: 70; CHECK-NEXT: ret void 71; CHECK: for.body: 72; CHECK-NEXT: [[I_08_IN:%.*]] = phi i64 [ [[I_08:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 73; CHECK-NEXT: [[I_08]] = add nsw i64 [[I_08_IN]], -1 74; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, double* [[B]], i64 [[I_08]] 75; CHECK-NEXT: [[TMP22:%.*]] = load double, double* [[ARRAYIDX]], align 8 76; CHECK-NEXT: [[ADD:%.*]] = fadd double [[TMP22]], 1.000000e+00 77; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds double, double* [[A]], i64 [[I_08]] 78; CHECK-NEXT: store double [[ADD]], double* [[ARRAYIDX1]], align 8 79; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[I_08_IN]], 1 80; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT]], !llvm.loop [[LOOP8:![0-9]+]] 81; 82entry: 83 %cmp7 = icmp sgt i64 %N, 0 84 br i1 %cmp7, label %for.body, label %for.cond.cleanup 85 86for.cond.cleanup: ; preds = %for.body 87 ret void 88 89for.body: ; preds = %entry, %for.body 90 %i.08.in = phi i64 [ %i.08, %for.body ], [ %N, %entry ] 91 %i.08 = add nsw i64 %i.08.in, -1 92 %arrayidx = getelementptr inbounds double, double* %b, i64 %i.08 93 %0 = load double, double* %arrayidx, align 8 94 %add = fadd double %0, 1.000000e+00 95 %arrayidx1 = getelementptr inbounds double, double* %a, i64 %i.08 96 store double %add, double* %arrayidx1, align 8 97 %cmp = icmp sgt i64 %i.08.in, 1 98 br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !0 99} 100 101 102define void @vector_reverse_i64(i64 %N, i64* %a, i64* %b) #0 { 103; CHECK-LABEL: @vector_reverse_i64( 104; CHECK-NEXT: entry: 105; CHECK-NEXT: [[CMP8:%.*]] = icmp sgt i64 [[N:%.*]], 0 106; CHECK-NEXT: br i1 [[CMP8]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] 107; CHECK: for.body.preheader: 108; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() 109; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[TMP0]], 3 110; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ugt i64 [[TMP1]], [[N]] 111; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] 112; CHECK: vector.memcheck: 113; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i64, i64* [[A:%.*]], i64 [[N]] 114; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr i64, i64* [[B:%.*]], i64 [[N]] 115; CHECK-NEXT: [[BOUND0:%.*]] = icmp ugt i64* [[SCEVGEP4]], [[A]] 116; CHECK-NEXT: [[BOUND1:%.*]] = icmp ugt i64* [[SCEVGEP]], [[B]] 117; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 118; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] 119; CHECK: vector.ph: 120; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() 121; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[TMP2]], 3 122; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]] 123; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 124; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 125; CHECK: vector.body: 126; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 127; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[INDEX]], -1 128; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[TMP4]], [[N]] 129; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, i64* [[B]], i64 [[TMP5]] 130; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vscale.i32() 131; CHECK-NEXT: [[DOTNEG:%.*]] = mul i32 [[TMP7]], -8 132; CHECK-NEXT: [[TMP8:%.*]] = or i32 [[DOTNEG]], 1 133; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64 134; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i64, i64* [[TMP6]], i64 [[TMP9]] 135; CHECK-NEXT: [[TMP11:%.*]] = bitcast i64* [[TMP10]] to <vscale x 8 x i64>* 136; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x i64>, <vscale x 8 x i64>* [[TMP11]], align 8, !alias.scope !9 137; CHECK-NEXT: [[REVERSE:%.*]] = call <vscale x 8 x i64> @llvm.experimental.vector.reverse.nxv8i64(<vscale x 8 x i64> [[WIDE_LOAD]]) 138; CHECK-NEXT: [[TMP12:%.*]] = add <vscale x 8 x i64> [[REVERSE]], shufflevector (<vscale x 8 x i64> insertelement (<vscale x 8 x i64> poison, i64 1, i32 0), <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer) 139; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds i64, i64* [[A]], i64 [[TMP5]] 140; CHECK-NEXT: [[REVERSE6:%.*]] = call <vscale x 8 x i64> @llvm.experimental.vector.reverse.nxv8i64(<vscale x 8 x i64> [[TMP12]]) 141; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vscale.i32() 142; CHECK-NEXT: [[DOTNEG7:%.*]] = mul i32 [[TMP14]], -8 143; CHECK-NEXT: [[TMP15:%.*]] = or i32 [[DOTNEG7]], 1 144; CHECK-NEXT: [[TMP16:%.*]] = sext i32 [[TMP15]] to i64 145; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i64, i64* [[TMP13]], i64 [[TMP16]] 146; CHECK-NEXT: [[TMP18:%.*]] = bitcast i64* [[TMP17]] to <vscale x 8 x i64>* 147; CHECK-NEXT: store <vscale x 8 x i64> [[REVERSE6]], <vscale x 8 x i64>* [[TMP18]], align 8, !alias.scope !12, !noalias !9 148; CHECK-NEXT: [[TMP19:%.*]] = call i64 @llvm.vscale.i64() 149; CHECK-NEXT: [[TMP20:%.*]] = shl i64 [[TMP19]], 3 150; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP20]] 151; CHECK-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 152; CHECK-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]] 153; CHECK: middle.block: 154; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_MOD_VF]], 0 155; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]] 156; CHECK: scalar.ph: 157; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_MOD_VF]], [[MIDDLE_BLOCK]] ], [ [[N]], [[FOR_BODY_PREHEADER]] ], [ [[N]], [[VECTOR_MEMCHECK]] ] 158; CHECK-NEXT: br label [[FOR_BODY:%.*]] 159; CHECK: for.cond.cleanup.loopexit: 160; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] 161; CHECK: for.cond.cleanup: 162; CHECK-NEXT: ret void 163; CHECK: for.body: 164; CHECK-NEXT: [[I_09_IN:%.*]] = phi i64 [ [[I_09:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 165; CHECK-NEXT: [[I_09]] = add nsw i64 [[I_09_IN]], -1 166; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, i64* [[B]], i64 [[I_09]] 167; CHECK-NEXT: [[TMP22:%.*]] = load i64, i64* [[ARRAYIDX]], align 8 168; CHECK-NEXT: [[ADD:%.*]] = add i64 [[TMP22]], 1 169; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[A]], i64 [[I_09]] 170; CHECK-NEXT: store i64 [[ADD]], i64* [[ARRAYIDX2]], align 8 171; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[I_09_IN]], 1 172; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT]], !llvm.loop [[LOOP15:![0-9]+]] 173; 174entry: 175 %cmp8 = icmp sgt i64 %N, 0 176 br i1 %cmp8, label %for.body, label %for.cond.cleanup 177 178for.cond.cleanup: ; preds = %for.body 179 ret void 180 181for.body: ; preds = %entry, %for.body 182 %i.09.in = phi i64 [ %i.09, %for.body ], [ %N, %entry ] 183 %i.09 = add nsw i64 %i.09.in, -1 184 %arrayidx = getelementptr inbounds i64, i64* %b, i64 %i.09 185 %0 = load i64, i64* %arrayidx, align 8 186 %add = add i64 %0, 1 187 %arrayidx2 = getelementptr inbounds i64, i64* %a, i64 %i.09 188 store i64 %add, i64* %arrayidx2, align 8 189 %cmp = icmp sgt i64 %i.09.in, 1 190 br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !0 191} 192 193attributes #0 = { "target-cpu"="generic" "target-features"="+neon,+sve" } 194 195!0 = distinct !{!0, !1, !2, !3, !4} 196!1 = !{!"llvm.loop.mustprogress"} 197!2 = !{!"llvm.loop.vectorize.width", i32 8} 198!3 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} 199!4 = !{!"llvm.loop.vectorize.enable", i1 true} 200 201