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1; REQUIRES: asserts2;3; RUN: llc -mtriple=hexagon -enable-pipeliner=true -debug-only=pipeliner < %s \4; RUN: 2>&1 -pipeliner-experimental-cg=true | FileCheck %s5 6; Test that the artificial dependence is created as a result of7; CopyToPhi DAG mutation.8; CHECK: Ord Latency=0 Artificial9target triple = "hexagon"10 11; Function Attrs: nounwind12define void @foo(ptr nocapture readonly %r64, i16 zeroext %n, i16 zeroext %s, ptr nocapture %p64) #0 {13entry:14 %conv = zext i16 %n to i3215 %cmp = icmp eq i16 %n, 016 br i1 %cmp, label %for.end, label %for.body.preheader17 18for.body.preheader: ; preds = %entry19 %tmp = load i64, ptr %r64, align 820 %v.sroa.0.0.extract.trunc = trunc i64 %tmp to i1621 %v.sroa.4.0.extract.shift = lshr i64 %tmp, 1622 %v.sroa.4.0.extract.trunc = trunc i64 %v.sroa.4.0.extract.shift to i1623 %v.sroa.5.0.extract.shift = lshr i64 %tmp, 3224 %v.sroa.5.0.extract.trunc = trunc i64 %v.sroa.5.0.extract.shift to i1625 %v.sroa.6.0.extract.shift = lshr i64 %tmp, 4826 %v.sroa.6.0.extract.trunc = trunc i64 %v.sroa.6.0.extract.shift to i1627 %conv2 = zext i16 %s to i3228 %add.ptr = getelementptr inbounds i16, ptr %p64, i32 %conv229 %add.ptr.sum = add nuw nsw i32 %conv2, 130 %add.ptr3 = getelementptr inbounds i16, ptr %p64, i32 %add.ptr.sum31 %add.ptr.sum50 = add nuw nsw i32 %conv2, 232 %add.ptr4 = getelementptr inbounds i16, ptr %p64, i32 %add.ptr.sum5033 %add.ptr.sum51 = add nuw nsw i32 %conv2, 334 %add.ptr5 = getelementptr inbounds i16, ptr %p64, i32 %add.ptr.sum5135 br label %for.body36 37for.body: ; preds = %for.body, %for.body.preheader38 %add.ptr11.phi = phi ptr [ %add.ptr11.inc, %for.body ], [ %add.ptr, %for.body.preheader ]39 %add.ptr16.phi = phi ptr [ %add.ptr16.inc, %for.body ], [ %add.ptr3, %for.body.preheader ]40 %add.ptr21.phi = phi ptr [ %add.ptr21.inc, %for.body ], [ %add.ptr4, %for.body.preheader ]41 %add.ptr26.phi = phi ptr [ %add.ptr26.inc, %for.body ], [ %add.ptr5, %for.body.preheader ]42 %i.058.pmt = phi i32 [ %inc.pmt, %for.body ], [ 0, %for.body.preheader ]43 %v.sroa.0.157 = phi i16 [ %v.sroa.0.0.extract.trunc34, %for.body ], [ %v.sroa.0.0.extract.trunc, %for.body.preheader ]44 %v.sroa.4.156 = phi i16 [ %v.sroa.4.0.extract.trunc36, %for.body ], [ %v.sroa.4.0.extract.trunc, %for.body.preheader ]45 %v.sroa.5.155 = phi i16 [ %v.sroa.5.0.extract.trunc38, %for.body ], [ %v.sroa.5.0.extract.trunc, %for.body.preheader ]46 %v.sroa.6.154 = phi i16 [ %v.sroa.6.0.extract.trunc40, %for.body ], [ %v.sroa.6.0.extract.trunc, %for.body.preheader ]47 %q64.153.pn = phi ptr [ %q64.153, %for.body ], [ %r64, %for.body.preheader ]48 %q64.153 = getelementptr inbounds i64, ptr %q64.153.pn, i32 149 store i16 %v.sroa.0.157, ptr %add.ptr11.phi, align 250 store i16 %v.sroa.4.156, ptr %add.ptr16.phi, align 251 store i16 %v.sroa.5.155, ptr %add.ptr21.phi, align 252 store i16 %v.sroa.6.154, ptr %add.ptr26.phi, align 253 %tmp2 = load i64, ptr %q64.153, align 854 %v.sroa.0.0.extract.trunc34 = trunc i64 %tmp2 to i1655 %v.sroa.4.0.extract.shift35 = lshr i64 %tmp2, 1656 %v.sroa.4.0.extract.trunc36 = trunc i64 %v.sroa.4.0.extract.shift35 to i1657 %v.sroa.5.0.extract.shift37 = lshr i64 %tmp2, 3258 %v.sroa.5.0.extract.trunc38 = trunc i64 %v.sroa.5.0.extract.shift37 to i1659 %v.sroa.6.0.extract.shift39 = lshr i64 %tmp2, 4860 %v.sroa.6.0.extract.trunc40 = trunc i64 %v.sroa.6.0.extract.shift39 to i1661 %inc.pmt = add i32 %i.058.pmt, 162 %cmp8 = icmp slt i32 %inc.pmt, %conv63 %add.ptr11.inc = getelementptr i16, ptr %add.ptr11.phi, i32 464 %add.ptr16.inc = getelementptr i16, ptr %add.ptr16.phi, i32 465 %add.ptr21.inc = getelementptr i16, ptr %add.ptr21.phi, i32 466 %add.ptr26.inc = getelementptr i16, ptr %add.ptr26.phi, i32 467 br i1 %cmp8, label %for.body, label %for.end68 69for.end: ; preds = %for.body, %entry70 ret void71}72 73attributes #0 = { nounwind "target-cpu"="hexagonv65" }74