| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; This is the loop in c++ being vectorize in this file with |
| ;experimental.vector.reverse |
| ; #pragma clang loop vectorize_width(8, scalable) |
| ; for (int i = N-1; i >= 0; --i) |
| ; a[i] = b[i] + 1.0; |
| |
| ; RUN: opt -loop-vectorize -scalable-vectorization=on -dce -instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s |
| |
| define void @vector_reverse_f64(i64 %N, double* %a, double* %b) #0{ |
| ; CHECK-LABEL: @vector_reverse_f64( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i64 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[TMP0]], 3 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ugt i64 [[TMP1]], [[N]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] |
| ; CHECK: vector.memcheck: |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr double, double* [[A:%.*]], i64 [[N]] |
| ; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr double, double* [[B:%.*]], i64 [[N]] |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ugt double* [[SCEVGEP4]], [[A]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ugt double* [[SCEVGEP]], [[B]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[TMP2]], 3 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]] |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[INDEX]], -1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[TMP4]], [[N]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds double, double* [[B]], i64 [[TMP5]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vscale.i32() |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = mul i32 [[TMP7]], -8 |
| ; CHECK-NEXT: [[TMP8:%.*]] = or i32 [[DOTNEG]], 1 |
| ; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64 |
| ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds double, double* [[TMP6]], i64 [[TMP9]] |
| ; CHECK-NEXT: [[TMP11:%.*]] = bitcast double* [[TMP10]] to <vscale x 8 x double>* |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x double>, <vscale x 8 x double>* [[TMP11]], align 8, !alias.scope !0 |
| ; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds double, double* [[A]], i64 [[TMP5]] |
| ; CHECK-NEXT: [[TMP13:%.*]] = fadd <vscale x 8 x double> [[WIDE_LOAD]], 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) |
| ; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vscale.i32() |
| ; CHECK-NEXT: [[DOTNEG7:%.*]] = mul i32 [[TMP14]], -8 |
| ; CHECK-NEXT: [[TMP15:%.*]] = or i32 [[DOTNEG7]], 1 |
| ; CHECK-NEXT: [[TMP16:%.*]] = sext i32 [[TMP15]] to i64 |
| ; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds double, double* [[TMP12]], i64 [[TMP16]] |
| ; CHECK-NEXT: [[TMP18:%.*]] = bitcast double* [[TMP17]] to <vscale x 8 x double>* |
| ; CHECK-NEXT: store <vscale x 8 x double> [[TMP13]], <vscale x 8 x double>* [[TMP18]], align 8, !alias.scope !3, !noalias !0 |
| ; CHECK-NEXT: [[TMP19:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP20:%.*]] = shl i64 [[TMP19]], 3 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP20]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_MOD_VF]], 0 |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_MOD_VF]], [[MIDDLE_BLOCK]] ], [ [[N]], [[FOR_BODY_PREHEADER]] ], [ [[N]], [[VECTOR_MEMCHECK]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_08_IN:%.*]] = phi i64 [ [[I_08:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[I_08]] = add nsw i64 [[I_08_IN]], -1 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, double* [[B]], i64 [[I_08]] |
| ; CHECK-NEXT: [[TMP22:%.*]] = load double, double* [[ARRAYIDX]], align 8 |
| ; CHECK-NEXT: [[ADD:%.*]] = fadd double [[TMP22]], 1.000000e+00 |
| ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds double, double* [[A]], i64 [[I_08]] |
| ; CHECK-NEXT: store double [[ADD]], double* [[ARRAYIDX1]], align 8 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[I_08_IN]], 1 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; |
| entry: |
| %cmp7 = icmp sgt i64 %N, 0 |
| br i1 %cmp7, label %for.body, label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %i.08.in = phi i64 [ %i.08, %for.body ], [ %N, %entry ] |
| %i.08 = add nsw i64 %i.08.in, -1 |
| %arrayidx = getelementptr inbounds double, double* %b, i64 %i.08 |
| %0 = load double, double* %arrayidx, align 8 |
| %add = fadd double %0, 1.000000e+00 |
| %arrayidx1 = getelementptr inbounds double, double* %a, i64 %i.08 |
| store double %add, double* %arrayidx1, align 8 |
| %cmp = icmp sgt i64 %i.08.in, 1 |
| br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !0 |
| } |
| |
| |
| define void @vector_reverse_i64(i64 %N, i64* %a, i64* %b) #0 { |
| ; CHECK-LABEL: @vector_reverse_i64( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP8:%.*]] = icmp sgt i64 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP8]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[TMP0]], 3 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ugt i64 [[TMP1]], [[N]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] |
| ; CHECK: vector.memcheck: |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i64, i64* [[A:%.*]], i64 [[N]] |
| ; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr i64, i64* [[B:%.*]], i64 [[N]] |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ugt i64* [[SCEVGEP4]], [[A]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ugt i64* [[SCEVGEP]], [[B]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[TMP2]], 3 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]] |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[INDEX]], -1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[TMP4]], [[N]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, i64* [[B]], i64 [[TMP5]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vscale.i32() |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = mul i32 [[TMP7]], -8 |
| ; CHECK-NEXT: [[TMP8:%.*]] = or i32 [[DOTNEG]], 1 |
| ; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64 |
| ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i64, i64* [[TMP6]], i64 [[TMP9]] |
| ; CHECK-NEXT: [[TMP11:%.*]] = bitcast i64* [[TMP10]] to <vscale x 8 x i64>* |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x i64>, <vscale x 8 x i64>* [[TMP11]], align 8, !alias.scope !9 |
| ; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i64, i64* [[A]], i64 [[TMP5]] |
| ; CHECK-NEXT: [[TMP13:%.*]] = add <vscale x 8 x i64> [[WIDE_LOAD]], 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) |
| ; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vscale.i32() |
| ; CHECK-NEXT: [[DOTNEG7:%.*]] = mul i32 [[TMP14]], -8 |
| ; CHECK-NEXT: [[TMP15:%.*]] = or i32 [[DOTNEG7]], 1 |
| ; CHECK-NEXT: [[TMP16:%.*]] = sext i32 [[TMP15]] to i64 |
| ; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i64, i64* [[TMP12]], i64 [[TMP16]] |
| ; CHECK-NEXT: [[TMP18:%.*]] = bitcast i64* [[TMP17]] to <vscale x 8 x i64>* |
| ; CHECK-NEXT: store <vscale x 8 x i64> [[TMP13]], <vscale x 8 x i64>* [[TMP18]], align 8, !alias.scope !12, !noalias !9 |
| ; CHECK-NEXT: [[TMP19:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP20:%.*]] = shl i64 [[TMP19]], 3 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP20]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_MOD_VF]], 0 |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_MOD_VF]], [[MIDDLE_BLOCK]] ], [ [[N]], [[FOR_BODY_PREHEADER]] ], [ [[N]], [[VECTOR_MEMCHECK]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_09_IN:%.*]] = phi i64 [ [[I_09:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[I_09]] = add nsw i64 [[I_09_IN]], -1 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, i64* [[B]], i64 [[I_09]] |
| ; CHECK-NEXT: [[TMP22:%.*]] = load i64, i64* [[ARRAYIDX]], align 8 |
| ; CHECK-NEXT: [[ADD:%.*]] = add i64 [[TMP22]], 1 |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[A]], i64 [[I_09]] |
| ; CHECK-NEXT: store i64 [[ADD]], i64* [[ARRAYIDX2]], align 8 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[I_09_IN]], 1 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT]], !llvm.loop [[LOOP15:![0-9]+]] |
| ; |
| entry: |
| %cmp8 = icmp sgt i64 %N, 0 |
| br i1 %cmp8, label %for.body, label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %i.09.in = phi i64 [ %i.09, %for.body ], [ %N, %entry ] |
| %i.09 = add nsw i64 %i.09.in, -1 |
| %arrayidx = getelementptr inbounds i64, i64* %b, i64 %i.09 |
| %0 = load i64, i64* %arrayidx, align 8 |
| %add = add i64 %0, 1 |
| %arrayidx2 = getelementptr inbounds i64, i64* %a, i64 %i.09 |
| store i64 %add, i64* %arrayidx2, align 8 |
| %cmp = icmp sgt i64 %i.09.in, 1 |
| br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !0 |
| } |
| |
| attributes #0 = { "target-cpu"="generic" "target-features"="+neon,+sve" } |
| |
| !0 = distinct !{!0, !1, !2, !3, !4} |
| !1 = !{!"llvm.loop.mustprogress"} |
| !2 = !{!"llvm.loop.vectorize.width", i32 8} |
| !3 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} |
| !4 = !{!"llvm.loop.vectorize.enable", i1 true} |
| |
