1 ; RUN: llc %s -march arm64 -o - | FileCheck %s 2 3 @a = common global i32* null, align 8 4 5 define void @test(i32 %i, i32 %j) nounwind ssp { 6 entry: 7 ; CHECK: @test 8 %j.addr = alloca i32, align 4 9 store i32 %j, i32* %j.addr, align 4, !tbaa !0 10 %tmp = bitcast i32* %j.addr to i8* 11 ; CHECK: prfum pldl1strm 12 call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 1) 13 ; CHECK: prfum pldl3keep 14 call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 1) 15 ; CHECK: prfum pldl2keep 16 call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 1) 17 ; CHECK: prfum pldl1keep 18 call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 1) 19 20 ; CHECK: prfum pstl1strm 21 call void @llvm.prefetch(i8* %tmp, i32 1, i32 0, i32 1) 22 ; CHECK: prfum pstl3keep 23 call void @llvm.prefetch(i8* %tmp, i32 1, i32 1, i32 1) 24 ; CHECK: prfum pstl2keep 25 call void @llvm.prefetch(i8* %tmp, i32 1, i32 2, i32 1) 26 ; CHECK: prfum pstl1keep 27 call void @llvm.prefetch(i8* %tmp, i32 1, i32 3, i32 1) 28 29 %tmp1 = load i32* %j.addr, align 4, !tbaa !0 30 %add = add nsw i32 %tmp1, %i 31 %idxprom = sext i32 %add to i64 32 %tmp2 = load i32** @a, align 8, !tbaa !3 33 %arrayidx = getelementptr inbounds i32* %tmp2, i64 %idxprom 34 %tmp3 = bitcast i32* %arrayidx to i8* 35 36 ; CHECK: prfm pldl1strm 37 call void @llvm.prefetch(i8* %tmp3, i32 0, i32 0, i32 1) 38 %tmp4 = load i32** @a, align 8, !tbaa !3 39 %arrayidx3 = getelementptr inbounds i32* %tmp4, i64 %idxprom 40 %tmp5 = bitcast i32* %arrayidx3 to i8* 41 42 ; CHECK: prfm pldl3keep 43 call void @llvm.prefetch(i8* %tmp5, i32 0, i32 1, i32 1) 44 %tmp6 = load i32** @a, align 8, !tbaa !3 45 %arrayidx6 = getelementptr inbounds i32* %tmp6, i64 %idxprom 46 %tmp7 = bitcast i32* %arrayidx6 to i8* 47 48 ; CHECK: prfm pldl2keep 49 call void @llvm.prefetch(i8* %tmp7, i32 0, i32 2, i32 1) 50 %tmp8 = load i32** @a, align 8, !tbaa !3 51 %arrayidx9 = getelementptr inbounds i32* %tmp8, i64 %idxprom 52 %tmp9 = bitcast i32* %arrayidx9 to i8* 53 54 ; CHECK: prfm pldl1keep 55 call void @llvm.prefetch(i8* %tmp9, i32 0, i32 3, i32 1) 56 %tmp10 = load i32** @a, align 8, !tbaa !3 57 %arrayidx12 = getelementptr inbounds i32* %tmp10, i64 %idxprom 58 %tmp11 = bitcast i32* %arrayidx12 to i8* 59 60 ; CHECK: prfm pstl1strm 61 call void @llvm.prefetch(i8* %tmp11, i32 1, i32 0, i32 1) 62 %tmp12 = load i32** @a, align 8, !tbaa !3 63 %arrayidx15 = getelementptr inbounds i32* %tmp12, i64 %idxprom 64 %tmp13 = bitcast i32* %arrayidx15 to i8* 65 66 ; CHECK: prfm pstl3keep 67 call void @llvm.prefetch(i8* %tmp13, i32 1, i32 1, i32 1) 68 %tmp14 = load i32** @a, align 8, !tbaa !3 69 %arrayidx18 = getelementptr inbounds i32* %tmp14, i64 %idxprom 70 %tmp15 = bitcast i32* %arrayidx18 to i8* 71 72 ; CHECK: prfm pstl2keep 73 call void @llvm.prefetch(i8* %tmp15, i32 1, i32 2, i32 1) 74 %tmp16 = load i32** @a, align 8, !tbaa !3 75 %arrayidx21 = getelementptr inbounds i32* %tmp16, i64 %idxprom 76 %tmp17 = bitcast i32* %arrayidx21 to i8* 77 78 ; CHECK: prfm pstl1keep 79 call void @llvm.prefetch(i8* %tmp17, i32 1, i32 3, i32 1) 80 ret void 81 } 82 83 declare void @llvm.prefetch(i8* nocapture, i32, i32, i32) nounwind 84 85 !0 = metadata !{metadata !"int", metadata !1} 86 !1 = metadata !{metadata !"omnipotent char", metadata !2} 87 !2 = metadata !{metadata !"Simple C/C++ TBAA"} 88 !3 = metadata !{metadata !"any pointer", metadata !1} 89
