1; RUN: llc -mtriple=hexagon -pipeliner-ignore-recmii -pipeliner-max-stages=2 -enable-pipeliner < %s -pipeliner-experimental-cg=true | FileCheck %s 2 3; This is a loop we pipeline to three packets, though we could do bettter. 4 5; CHECK: loop0(.LBB0_[[LOOP:.]], 6; CHECK: .LBB0_[[LOOP]]: 7; CHECK: { 8; CHECK: } 9; CHECK: { 10; CHECK: } 11; CHECK: { 12; CHECK: }{{[ \t]*}}:endloop0 13 14; Function Attrs: nounwind 15define void @f0(ptr nocapture %a0, i16 signext %a1) #0 { 16b0: 17 %v0 = sext i16 %a1 to i32 18 %v1 = add i32 %v0, -1 19 %v2 = icmp sgt i32 %v1, 0 20 br i1 %v2, label %b1, label %b4 21 22b1: ; preds = %b0 23 %v3 = getelementptr i32, ptr %a0, i32 %v1 24 %v4 = load i32, ptr %v3, align 4 25 br label %b2 26 27b2: ; preds = %b2, %b1 28 %v5 = phi i32 [ %v16, %b2 ], [ %v1, %b1 ] 29 %v6 = phi i32 [ %v5, %b2 ], [ %v0, %b1 ] 30 %v7 = phi i32 [ %v10, %b2 ], [ %v4, %b1 ] 31 %v8 = add nsw i32 %v6, -2 32 %v9 = getelementptr inbounds i32, ptr %a0, i32 %v8 33 %v10 = load i32, ptr %v9, align 4, !tbaa !0 34 %v11 = tail call i64 @llvm.hexagon.M2.dpmpyss.s0(i32 %v10, i32 7946) 35 %v12 = tail call i64 @llvm.hexagon.S2.asl.r.p(i64 %v11, i32 -13) 36 %v13 = getelementptr inbounds i32, ptr %a0, i32 %v5 37 %v14 = tail call i32 @llvm.hexagon.A2.sat(i64 %v12) 38 %v15 = tail call i32 @llvm.hexagon.A2.subsat(i32 %v7, i32 %v14) 39 store i32 %v15, ptr %v13, align 4, !tbaa !0 40 %v16 = add nsw i32 %v5, -1 41 %v17 = icmp sgt i32 %v16, 0 42 br i1 %v17, label %b2, label %b3 43 44b3: ; preds = %b2 45 br label %b4 46 47b4: ; preds = %b3, %b0 48 ret void 49} 50 51; Function Attrs: nounwind readnone 52declare i64 @llvm.hexagon.S2.asl.r.p(i64, i32) #1 53 54; Function Attrs: nounwind readnone 55declare i64 @llvm.hexagon.M2.dpmpyss.s0(i32, i32) #1 56 57; Function Attrs: nounwind readnone 58declare i32 @llvm.hexagon.A2.subsat(i32, i32) #1 59 60; Function Attrs: nounwind readnone 61declare i32 @llvm.hexagon.A2.sat(i64) #1 62 63attributes #0 = { nounwind "target-cpu"="hexagonv55" } 64attributes #1 = { nounwind readnone } 65 66!0 = !{!1, !1, i64 0} 67!1 = !{!"int", !2} 68!2 = !{!"omnipotent char", !3} 69!3 = !{!"Simple C/C++ TBAA"} 70