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Diffstat (limited to 'test/CodeGen/ARM64/prefetch.ll')
-rw-r--r-- | test/CodeGen/ARM64/prefetch.ll | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/prefetch.ll b/test/CodeGen/ARM64/prefetch.ll new file mode 100644 index 0000000000..b2e06edf93 --- /dev/null +++ b/test/CodeGen/ARM64/prefetch.ll @@ -0,0 +1,88 @@ +; RUN: llc %s -march arm64 -o - | FileCheck %s + +@a = common global i32* null, align 8 + +define void @test(i32 %i, i32 %j) nounwind ssp { +entry: + ; CHECK: @test + %j.addr = alloca i32, align 4 + store i32 %j, i32* %j.addr, align 4, !tbaa !0 + %tmp = bitcast i32* %j.addr to i8* + ; CHECK: prfum pldl1strm + call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 1) + ; CHECK: prfum pldl3keep + call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 1) + ; CHECK: prfum pldl2keep + call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 1) + ; CHECK: prfum pldl1keep + call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 1) + + ; CHECK: prfum pstl1strm + call void @llvm.prefetch(i8* %tmp, i32 1, i32 0, i32 1) + ; CHECK: prfum pstl3keep + call void @llvm.prefetch(i8* %tmp, i32 1, i32 1, i32 1) + ; CHECK: prfum pstl2keep + call void @llvm.prefetch(i8* %tmp, i32 1, i32 2, i32 1) + ; CHECK: prfum pstl1keep + call void @llvm.prefetch(i8* %tmp, i32 1, i32 3, i32 1) + + %tmp1 = load i32* %j.addr, align 4, !tbaa !0 + %add = add nsw i32 %tmp1, %i + %idxprom = sext i32 %add to i64 + %tmp2 = load i32** @a, align 8, !tbaa !3 + %arrayidx = getelementptr inbounds i32* %tmp2, i64 %idxprom + %tmp3 = bitcast i32* %arrayidx to i8* + + ; CHECK: prfm pldl1strm + call void @llvm.prefetch(i8* %tmp3, i32 0, i32 0, i32 1) + %tmp4 = load i32** @a, align 8, !tbaa !3 + %arrayidx3 = getelementptr inbounds i32* %tmp4, i64 %idxprom + %tmp5 = bitcast i32* %arrayidx3 to i8* + + ; CHECK: prfm pldl3keep + call void @llvm.prefetch(i8* %tmp5, i32 0, i32 1, i32 1) + %tmp6 = load i32** @a, align 8, !tbaa !3 + %arrayidx6 = getelementptr inbounds i32* %tmp6, i64 %idxprom + %tmp7 = bitcast i32* %arrayidx6 to i8* + + ; CHECK: prfm pldl2keep + call void @llvm.prefetch(i8* %tmp7, i32 0, i32 2, i32 1) + %tmp8 = load i32** @a, align 8, !tbaa !3 + %arrayidx9 = getelementptr inbounds i32* %tmp8, i64 %idxprom + %tmp9 = bitcast i32* %arrayidx9 to i8* + + ; CHECK: prfm pldl1keep + call void @llvm.prefetch(i8* %tmp9, i32 0, i32 3, i32 1) + %tmp10 = load i32** @a, align 8, !tbaa !3 + %arrayidx12 = getelementptr inbounds i32* %tmp10, i64 %idxprom + %tmp11 = bitcast i32* %arrayidx12 to i8* + + ; CHECK: prfm pstl1strm + call void @llvm.prefetch(i8* %tmp11, i32 1, i32 0, i32 1) + %tmp12 = load i32** @a, align 8, !tbaa !3 + %arrayidx15 = getelementptr inbounds i32* %tmp12, i64 %idxprom + %tmp13 = bitcast i32* %arrayidx15 to i8* + + ; CHECK: prfm pstl3keep + call void @llvm.prefetch(i8* %tmp13, i32 1, i32 1, i32 1) + %tmp14 = load i32** @a, align 8, !tbaa !3 + %arrayidx18 = getelementptr inbounds i32* %tmp14, i64 %idxprom + %tmp15 = bitcast i32* %arrayidx18 to i8* + + ; CHECK: prfm pstl2keep + call void @llvm.prefetch(i8* %tmp15, i32 1, i32 2, i32 1) + %tmp16 = load i32** @a, align 8, !tbaa !3 + %arrayidx21 = getelementptr inbounds i32* %tmp16, i64 %idxprom + %tmp17 = bitcast i32* %arrayidx21 to i8* + + ; CHECK: prfm pstl1keep + call void @llvm.prefetch(i8* %tmp17, i32 1, i32 3, i32 1) + ret void +} + +declare void @llvm.prefetch(i8* nocapture, i32, i32, i32) nounwind + +!0 = metadata !{metadata !"int", metadata !1} +!1 = metadata !{metadata !"omnipotent char", metadata !2} +!2 = metadata !{metadata !"Simple C/C++ TBAA"} +!3 = metadata !{metadata !"any pointer", metadata !1} |