123 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; This is the loop in c++ being vectorize in this file with3; shuffle reverse4 5;#pragma clang loop vectorize_width(4, fixed)6; for (long int i = N - 1; i >= 0; i--)7; {8; if (cond[i])9; a[i] += 1;10; }11 12; The test checks if the mask is being correctly created, reverted and used13 14; RUN: opt -passes=loop-vectorize,dce,instcombine -mtriple aarch64-linux-gnu -S \15; RUN: -prefer-predicate-over-epilogue=scalar-epilogue < %s | FileCheck %s16 17target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"18target triple = "aarch64-unknown-linux-gnu"19 20define void @vector_reverse_mask_v4i1(ptr noalias %a, ptr noalias %cond, i64 %N) #0 {21; CHECK-LABEL: @vector_reverse_mask_v4i1(22; CHECK-NEXT: entry:23; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i64 [[N:%.*]], 024; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]25; CHECK: for.body.preheader:26; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 827; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]28; CHECK: vector.ph:29; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[N]], 922337203685477580030; CHECK-NEXT: [[IND_END:%.*]] = and i64 [[N]], 731; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]32; CHECK: vector.body:33; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]34; CHECK-NEXT: [[TMP0:%.*]] = xor i64 [[INDEX]], -135; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[N]], [[TMP0]]36; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds double, ptr [[COND:%.*]], i64 [[TMP1]]37; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i64 -2438; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i64 -5639; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x double>, ptr [[TMP3]], align 840; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x double> [[WIDE_LOAD]], <4 x double> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>41; CHECK-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x double>, ptr [[TMP4]], align 842; CHECK-NEXT: [[REVERSE2:%.*]] = shufflevector <4 x double> [[WIDE_LOAD1]], <4 x double> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>43; CHECK-NEXT: [[TMP5:%.*]] = fcmp une <4 x double> [[REVERSE]], zeroinitializer44; CHECK-NEXT: [[TMP6:%.*]] = fcmp une <4 x double> [[REVERSE2]], zeroinitializer45; CHECK-NEXT: [[TMP7:%.*]] = getelementptr double, ptr [[A:%.*]], i64 [[TMP1]]46; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP7]], i64 -2447; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP7]], i64 -5648; CHECK-NEXT: [[REVERSE3:%.*]] = shufflevector <4 x i1> [[TMP5]], <4 x i1> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>49; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x double> @llvm.masked.load.v4f64.p0(ptr align 8 [[TMP8]], <4 x i1> [[REVERSE3]], <4 x double> poison)50; CHECK-NEXT: [[REVERSE5:%.*]] = shufflevector <4 x i1> [[TMP6]], <4 x i1> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>51; CHECK-NEXT: [[WIDE_MASKED_LOAD6:%.*]] = call <4 x double> @llvm.masked.load.v4f64.p0(ptr align 8 [[TMP9]], <4 x i1> [[REVERSE5]], <4 x double> poison)52; CHECK-NEXT: [[TMP10:%.*]] = fadd <4 x double> [[WIDE_MASKED_LOAD]], splat (double 1.000000e+00)53; CHECK-NEXT: [[TMP11:%.*]] = fadd <4 x double> [[WIDE_MASKED_LOAD6]], splat (double 1.000000e+00)54; CHECK-NEXT: call void @llvm.masked.store.v4f64.p0(<4 x double> [[TMP10]], ptr align 8 [[TMP8]], <4 x i1> [[REVERSE3]])55; CHECK-NEXT: call void @llvm.masked.store.v4f64.p0(<4 x double> [[TMP11]], ptr align 8 [[TMP9]], <4 x i1> [[REVERSE5]])56; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 857; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]58; CHECK-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]59; CHECK: middle.block:60; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]61; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[SCALAR_PH]]62; CHECK: scalar.ph:63; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[N]], [[FOR_BODY_PREHEADER]] ]64; CHECK-NEXT: br label [[FOR_BODY:%.*]]65; CHECK: for.cond.cleanup.loopexit:66; CHECK-NEXT: br label [[FOR_COND_CLEANUP]]67; CHECK: for.cond.cleanup:68; CHECK-NEXT: ret void69; CHECK: for.body:70; CHECK-NEXT: [[I_08_IN:%.*]] = phi i64 [ [[I_08:%.*]], [[FOR_INC:%.*]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]71; CHECK-NEXT: [[I_08]] = add nsw i64 [[I_08_IN]], -172; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[COND]], i64 [[I_08]]73; CHECK-NEXT: [[TMP13:%.*]] = load double, ptr [[ARRAYIDX]], align 874; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une double [[TMP13]], 0.000000e+0075; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[FOR_INC]]76; CHECK: if.then:77; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds double, ptr [[A]], i64 [[I_08]]78; CHECK-NEXT: [[TMP14:%.*]] = load double, ptr [[ARRAYIDX1]], align 879; CHECK-NEXT: [[ADD:%.*]] = fadd double [[TMP14]], 1.000000e+0080; CHECK-NEXT: store double [[ADD]], ptr [[ARRAYIDX1]], align 881; CHECK-NEXT: br label [[FOR_INC]]82; CHECK: for.inc:83; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[I_08_IN]], 184; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT]], !llvm.loop [[LOOP4:![0-9]+]]85;86 87entry:88 %cmp7 = icmp sgt i64 %N, 089 br i1 %cmp7, label %for.body, label %for.cond.cleanup90 91for.cond.cleanup: ; preds = %for.cond.cleanup, %entry92 ret void93 94for.body: ; preds = %for.body, %entry95 %i.08.in = phi i64 [ %i.08, %for.inc ], [ %N, %entry ]96 %i.08 = add nsw i64 %i.08.in, -197 %arrayidx = getelementptr inbounds double, ptr %cond, i64 %i.0898 %0 = load double, ptr %arrayidx, align 899 %tobool = fcmp une double %0, 0.000000e+00100 br i1 %tobool, label %if.then, label %for.inc101 102if.then: ; preds = %for.body103 %arrayidx1 = getelementptr inbounds double, ptr %a, i64 %i.08104 %1 = load double, ptr %arrayidx1, align 8105 %add = fadd double %1, 1.000000e+00106 store double %add, ptr %arrayidx1, align 8107 br label %for.inc108 109for.inc: ; preds = %for.body, %if.then110 %cmp = icmp sgt i64 %i.08.in, 1111 br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !0112}113 114attributes #0 = {"target-cpu"="generic" "target-features"="+neon,+sve" vscale_range(2,0) }115 116 117!0 = distinct !{!0, !1, !2, !3, !4, !5}118!1 = !{!"llvm.loop.mustprogress"}119!2 = !{!"llvm.loop.vectorize.width", i32 4}120!3 = !{!"llvm.loop.vectorize.scalable.enable", i1 false}121!4 = !{!"llvm.loop.vectorize.enable", i1 true}122!5 = !{!"llvm.loop.interleave.count", i32 2}123