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1; RUN: llc -mtriple=hexagon -enable-pipeliner -stats -o /dev/null < %s 2>&1 -pipeliner-experimental-cg=true | FileCheck %s --check-prefix=STATS2; REQUIRES: asserts3 4; Test that we don't pipeline, incorrectly, the swap operation.5 6; STATS-NOT: 1 pipeliner - Number of loops software pipelined7 8@g0 = common global ptr null, align 49 10; Function Attrs: nounwind11define void @f0(i32 %a0, i32 %a1, i32 %a2) #0 {12b0:13 %v0 = icmp sgt i32 %a2, 014 br i1 %v0, label %b1, label %b415 16b1: ; preds = %b017 %v1 = load ptr, ptr @g0, align 4, !tbaa !018 br label %b219 20b2: ; preds = %b2, %b121 %v2 = phi i32 [ %a0, %b1 ], [ %v9, %b2 ]22 %v3 = phi i32 [ %a2, %b1 ], [ %v11, %b2 ]23 %v4 = phi i32 [ %a1, %b1 ], [ %v10, %b2 ]24 %v5 = getelementptr inbounds i32, ptr %v1, i32 %v225 %v6 = load i32, ptr %v5, align 4, !tbaa !426 %v7 = getelementptr inbounds i32, ptr %v1, i32 %v427 %v8 = load i32, ptr %v7, align 4, !tbaa !428 store i32 %v8, ptr %v5, align 4, !tbaa !429 store i32 %v6, ptr %v7, align 4, !tbaa !430 %v9 = add nsw i32 %v2, 131 %v10 = add nsw i32 %v4, 132 %v11 = add nsw i32 %v3, -133 %v12 = icmp sgt i32 %v11, 034 br i1 %v12, label %b2, label %b335 36b3: ; preds = %b237 br label %b438 39b4: ; preds = %b3, %b040 ret void41}42 43attributes #0 = { nounwind "target-cpu"="hexagonv55" }44 45!0 = !{!1, !1, i64 0}46!1 = !{!"any pointer", !2, i64 0}47!2 = !{!"omnipotent char", !3, i64 0}48!3 = !{!"Simple C/C++ TBAA"}49!4 = !{!5, !5, i64 0}50!5 = !{!"int", !2, i64 0}51