109 lines
5.6 KiB
LLVM
109 lines
5.6 KiB
LLVM
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; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp -loop-vectorize -tail-predication=enabled -S < %s | \
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; RUN: FileCheck %s -check-prefix=CHECK
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; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp -loop-vectorize -tail-predication=enabled \
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; RUN: -prefer-predicate-over-epilogue=predicate-dont-vectorize -S < %s | \
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; RUN: FileCheck -check-prefix=PREDFLAG %s
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; This test has a loop hint "predicate.predicate" set to false, so shouldn't
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; get tail-folded, except with -prefer-predicate-over-epilog which then
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; overrules this.
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;
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define dso_local void @flag_overrules_hint(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C) local_unnamed_addr #0 {
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; CHECK-LABEL: flag_overrules_hint(
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; CHECK: vector.body:
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; CHECK-NOT: @llvm.masked.load.v8i32.p0v8i32(
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; CHECK-NOT: @llvm.masked.store.v8i32.p0v8i32(
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; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body
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; PREDFLAG-LABEL: flag_overrules_hint(
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; PREDFLAG: vector.body:
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; PREDFLAG: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
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; PREDFLAG: %[[ELEM0:.*]] = add i64 %index, 0
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; PREDFLAG: %active.lane.mask = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i64(i64 %[[ELEM0]], i64 430)
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; PREDFLAG: %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %active.lane.mask
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; PREDFLAG: %wide.masked.load1 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %active.lane.mask
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; PREDFLAG: %{{.*}} = add nsw <4 x i32> %wide.masked.load1, %wide.masked.load
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; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32({{.*}}, <4 x i1> %active.lane.mask
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; PREDFLAG: %index.next = add i64 %index, 4
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; PREDFLAG: %[[CMP:.*]] = icmp eq i64 %index.next, 432
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; PREDFLAG: br i1 %[[CMP]], label %middle.block, label %vector.body, !llvm.loop !0
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entry:
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br label %for.body
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for.cond.cleanup:
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ret void
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %indvars.iv
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%1 = load i32, i32* %arrayidx2, align 4
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%add = add nsw i32 %1, %0
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%arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %add, i32* %arrayidx4, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 430
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br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !10
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}
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define dso_local void @interleave4(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C, i32 %N) local_unnamed_addr #0 {
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; PREDFLAG-LABEL: interleave4(
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; PREDFLAG: %[[ADD1:.*]] = add i32 %index, 0
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; PREDFLAG: %[[ADD2:.*]] = add i32 %index, 4
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; PREDFLAG: %[[ADD3:.*]] = add i32 %index, 8
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; PREDFLAG: %[[ADD4:.*]] = add i32 %index, 12
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; PREDFLAG: %[[ALM1:active.lane.mask.*]] = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %[[ADD1]], i32 %N)
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; PREDFLAG: %[[ALM2:active.lane.mask.*]] = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %[[ADD2]], i32 %N)
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; PREDFLAG: %[[ALM3:active.lane.mask.*]] = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %[[ADD3]], i32 %N)
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; PREDFLAG: %[[ALM4:active.lane.mask.*]] = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %[[ADD4]], i32 %N)
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;
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM1]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM2]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM3]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM4]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM1]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM2]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM3]],{{.*}}
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; PREDFLAG: call <4 x i32> @llvm.masked.load.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM4]],{{.*}}
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;
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; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM1]])
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; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM2]])
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; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM3]])
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; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32({{.*}}, <4 x i1> %[[ALM4]])
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;
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entry:
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%cmp8 = icmp sgt i32 %N, 0
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br i1 %cmp8, label %for.body.preheader, label %for.cond.cleanup
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.cond.cleanup.loopexit: ; preds = %for.body
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br label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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ret void
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for.body: ; preds = %for.body.preheader, %for.body
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%i.09 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.09
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds i32, i32* %C, i32 %i.09
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%1 = load i32, i32* %arrayidx1, align 4
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%add = add nsw i32 %1, %0
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %i.09
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store i32 %add, i32* %arrayidx2, align 4
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%inc = add nuw nsw i32 %i.09, 1
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%exitcond = icmp eq i32 %inc, %N
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !llvm.loop !14
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}
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!10 = distinct !{!10, !11, !12}
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!11 = !{!"llvm.loop.vectorize.predicate.enable", i1 false}
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!12 = !{!"llvm.loop.vectorize.enable", i1 true}
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!14 = distinct !{!14, !15}
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!15 = !{!"llvm.loop.interleave.count", i32 4}
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