| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; This is the loop in c++ being vectorize in this file with |
| ; shuffle reverse |
| |
| ;#pragma clang loop vectorize_width(4, fixed) |
| ; for (long int i = N - 1; i >= 0; i--) |
| ; { |
| ; if (cond[i]) |
| ; a[i] += 1; |
| ; } |
| |
| ; The test checks if the mask is being correctly created, reverted and used |
| |
| ; RUN: opt -loop-vectorize -dce -instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-unknown-linux-gnu" |
| |
| define void @vector_reverse_mask_v4i1(double* %a, double* %cond, i64 %N) #0 { |
| ; CHECK-LABEL: @vector_reverse_mask_v4i1( |
| ; 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: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 8 |
| ; 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* [[COND:%.*]], i64 [[N]] |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ugt double* [[SCEVGEP4]], [[A]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ugt double* [[SCEVGEP]], [[COND]] |
| ; 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: [[N_VEC:%.*]] = and i64 [[N]], -8 |
| ; CHECK-NEXT: [[IND_END:%.*]] = and i64 [[N]], 7 |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = xor i64 [[INDEX]], -1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], [[N]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds double, double* [[COND]], i64 [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds double, double* [[TMP2]], i64 -3 |
| ; CHECK-NEXT: [[TMP4:%.*]] = bitcast double* [[TMP3]] to <4 x double>* |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x double>, <4 x double>* [[TMP4]], align 8, !alias.scope !0 |
| ; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x double> [[WIDE_LOAD]], <4 x double> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds double, double* [[TMP2]], i64 -4 |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds double, double* [[TMP5]], i64 -3 |
| ; CHECK-NEXT: [[TMP7:%.*]] = bitcast double* [[TMP6]] to <4 x double>* |
| ; CHECK-NEXT: [[WIDE_LOAD6:%.*]] = load <4 x double>, <4 x double>* [[TMP7]], align 8, !alias.scope !0 |
| ; CHECK-NEXT: [[REVERSE7:%.*]] = shufflevector <4 x double> [[WIDE_LOAD6]], <4 x double> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> |
| ; CHECK-NEXT: [[TMP8:%.*]] = fcmp une <4 x double> [[REVERSE]], zeroinitializer |
| ; CHECK-NEXT: [[TMP9:%.*]] = fcmp une <4 x double> [[REVERSE7]], zeroinitializer |
| ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr double, double* [[A]], i64 [[TMP1]] |
| ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr double, double* [[TMP10]], i64 -3 |
| ; CHECK-NEXT: [[REVERSE8:%.*]] = shufflevector <4 x i1> [[TMP8]], <4 x i1> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> |
| ; CHECK-NEXT: [[TMP12:%.*]] = bitcast double* [[TMP11]] to <4 x double>* |
| ; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x double> @llvm.masked.load.v4f64.p0v4f64(<4 x double>* [[TMP12]], i32 8, <4 x i1> [[REVERSE8]], <4 x double> poison), !alias.scope !3, !noalias !0 |
| ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr double, double* [[TMP10]], i64 -4 |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr double, double* [[TMP13]], i64 -3 |
| ; CHECK-NEXT: [[REVERSE10:%.*]] = shufflevector <4 x i1> [[TMP9]], <4 x i1> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0> |
| ; CHECK-NEXT: [[TMP15:%.*]] = bitcast double* [[TMP14]] to <4 x double>* |
| ; CHECK-NEXT: [[WIDE_MASKED_LOAD11:%.*]] = call <4 x double> @llvm.masked.load.v4f64.p0v4f64(<4 x double>* [[TMP15]], i32 8, <4 x i1> [[REVERSE10]], <4 x double> poison), !alias.scope !3, !noalias !0 |
| ; CHECK-NEXT: [[TMP16:%.*]] = fadd <4 x double> [[WIDE_MASKED_LOAD]], <double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00> |
| ; CHECK-NEXT: [[TMP17:%.*]] = fadd <4 x double> [[WIDE_MASKED_LOAD11]], <double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00> |
| ; CHECK-NEXT: [[TMP18:%.*]] = bitcast double* [[TMP11]] to <4 x double>* |
| ; CHECK-NEXT: call void @llvm.masked.store.v4f64.p0v4f64(<4 x double> [[TMP16]], <4 x double>* [[TMP18]], i32 8, <4 x i1> [[REVERSE8]]), !alias.scope !3, !noalias !0 |
| ; CHECK-NEXT: [[TMP19:%.*]] = bitcast double* [[TMP14]] to <4 x double>* |
| ; CHECK-NEXT: call void @llvm.masked.store.v4f64.p0v4f64(<4 x double> [[TMP17]], <4 x double>* [[TMP19]], i32 8, <4 x i1> [[REVERSE10]]), !alias.scope !3, !noalias !0 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_VEC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], [[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_INC:%.*]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[I_08]] = add nsw i64 [[I_08_IN]], -1 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, double* [[COND]], i64 [[I_08]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = load double, double* [[ARRAYIDX]], align 8 |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une double [[TMP21]], 0.000000e+00 |
| ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[FOR_INC]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds double, double* [[A]], i64 [[I_08]] |
| ; CHECK-NEXT: [[TMP22:%.*]] = load double, double* [[ARRAYIDX1]], align 8 |
| ; CHECK-NEXT: [[ADD:%.*]] = fadd double [[TMP22]], 1.000000e+00 |
| ; CHECK-NEXT: store double [[ADD]], double* [[ARRAYIDX1]], align 8 |
| ; CHECK-NEXT: br label [[FOR_INC]] |
| ; CHECK: for.inc: |
| ; 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.cond.cleanup, %entry |
| ret void |
| |
| for.body: ; preds = %for.body, %entry |
| %i.08.in = phi i64 [ %i.08, %for.inc ], [ %N, %entry ] |
| %i.08 = add nsw i64 %i.08.in, -1 |
| %arrayidx = getelementptr inbounds double, double* %cond, i64 %i.08 |
| %0 = load double, double* %arrayidx, align 8 |
| %tobool = fcmp une double %0, 0.000000e+00 |
| br i1 %tobool, label %if.then, label %for.inc |
| |
| if.then: ; preds = %for.body |
| %arrayidx1 = getelementptr inbounds double, double* %a, i64 %i.08 |
| %1 = load double, double* %arrayidx1, align 8 |
| %add = fadd double %1, 1.000000e+00 |
| store double %add, double* %arrayidx1, align 8 |
| br label %for.inc |
| |
| for.inc: ; preds = %for.body, %if.then |
| %cmp = icmp sgt i64 %i.08.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, !5} |
| !1 = !{!"llvm.loop.mustprogress"} |
| !2 = !{!"llvm.loop.vectorize.width", i32 4} |
| !3 = !{!"llvm.loop.vectorize.scalable.enable", i1 false} |
| !4 = !{!"llvm.loop.vectorize.enable", i1 true} |
| !5 = !{!"llvm.loop.interleave.count", i32 2} |
