1; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner -pipeliner-max-stages=2 < %s 2; REQUIRES: asserts 3 4; This tests check that a dependence is created between a Phi and it's uses. 5; An assert occurs if the Phi dependences are not correct. 6 7define void @test1(i32* %f2, i32 %nc) { 8entry: 9 %i.011 = add i32 %nc, -1 10 %cmp12 = icmp sgt i32 %i.011, 1 11 br i1 %cmp12, label %for.body.preheader, label %for.end 12 13for.body.preheader: 14 %0 = add i32 %nc, -2 15 %scevgep = getelementptr i32, i32* %f2, i32 %0 16 %sri = load i32, i32* %scevgep, align 4 17 %scevgep15 = getelementptr i32, i32* %f2, i32 %i.011 18 %sri16 = load i32, i32* %scevgep15, align 4 19 br label %for.body 20 21for.body: 22 %i.014 = phi i32 [ %i.0, %for.body ], [ %i.011, %for.body.preheader ] 23 %i.0.in13 = phi i32 [ %i.014, %for.body ], [ %nc, %for.body.preheader ] 24 %sr = phi i32 [ %1, %for.body ], [ %sri, %for.body.preheader ] 25 %sr17 = phi i32 [ %sr, %for.body ], [ %sri16, %for.body.preheader ] 26 %arrayidx = getelementptr inbounds i32, i32* %f2, i32 %i.014 27 %sub1 = add nsw i32 %i.0.in13, -3 28 %arrayidx2 = getelementptr inbounds i32, i32* %f2, i32 %sub1 29 %1 = load i32, i32* %arrayidx2, align 4 30 %sub3 = sub nsw i32 %sr17, %1 31 store i32 %sub3, i32* %arrayidx, align 4 32 %i.0 = add nsw i32 %i.014, -1 33 %cmp = icmp sgt i32 %i.0, 1 34 br i1 %cmp, label %for.body, label %for.end.loopexit 35 36for.end.loopexit: 37 br label %for.end 38 39for.end: 40 ret void 41} 42 43