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Instruction prefetch is not implemented for AArch64, it is incorrectly translated into data prefetch instruction. Differential Revision: http://reviews.llvm.org/D4777 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214860 91177308-0d34-0410-b5e6-96231b3b80d8
124 lines
4.4 KiB
LLVM
124 lines
4.4 KiB
LLVM
; RUN: llc %s -march arm64 -o - | FileCheck %s
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@a = common global i32* null, align 8
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define void @test(i32 %i, i32 %j) nounwind ssp {
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entry:
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; CHECK: @test
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%j.addr = alloca i32, align 4
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store i32 %j, i32* %j.addr, align 4, !tbaa !0
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%tmp = bitcast i32* %j.addr to i8*
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; CHECK: prfum pldl1strm
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 1)
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; CHECK: prfum pldl3keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 1)
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; CHECK: prfum pldl2keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 1)
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; CHECK: prfum pldl1keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 1)
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; CHECK: prfum plil1strm
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 0)
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; CHECK: prfum plil3keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 0)
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; CHECK: prfum plil2keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 0)
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; CHECK: prfum plil1keep
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call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 0)
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; CHECK: prfum pstl1strm
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call void @llvm.prefetch(i8* %tmp, i32 1, i32 0, i32 1)
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; CHECK: prfum pstl3keep
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call void @llvm.prefetch(i8* %tmp, i32 1, i32 1, i32 1)
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; CHECK: prfum pstl2keep
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call void @llvm.prefetch(i8* %tmp, i32 1, i32 2, i32 1)
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; CHECK: prfum pstl1keep
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call void @llvm.prefetch(i8* %tmp, i32 1, i32 3, i32 1)
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%tmp1 = load i32* %j.addr, align 4, !tbaa !0
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%add = add nsw i32 %tmp1, %i
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%idxprom = sext i32 %add to i64
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%tmp2 = load i32** @a, align 8, !tbaa !3
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%arrayidx = getelementptr inbounds i32* %tmp2, i64 %idxprom
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%tmp3 = bitcast i32* %arrayidx to i8*
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; CHECK: prfm pldl1strm
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call void @llvm.prefetch(i8* %tmp3, i32 0, i32 0, i32 1)
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%tmp4 = load i32** @a, align 8, !tbaa !3
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%arrayidx3 = getelementptr inbounds i32* %tmp4, i64 %idxprom
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%tmp5 = bitcast i32* %arrayidx3 to i8*
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; CHECK: prfm pldl3keep
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call void @llvm.prefetch(i8* %tmp5, i32 0, i32 1, i32 1)
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%tmp6 = load i32** @a, align 8, !tbaa !3
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%arrayidx6 = getelementptr inbounds i32* %tmp6, i64 %idxprom
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%tmp7 = bitcast i32* %arrayidx6 to i8*
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; CHECK: prfm pldl2keep
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call void @llvm.prefetch(i8* %tmp7, i32 0, i32 2, i32 1)
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%tmp8 = load i32** @a, align 8, !tbaa !3
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%arrayidx9 = getelementptr inbounds i32* %tmp8, i64 %idxprom
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%tmp9 = bitcast i32* %arrayidx9 to i8*
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; CHECK: prfm pldl1keep
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call void @llvm.prefetch(i8* %tmp9, i32 0, i32 3, i32 1)
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%tmp10 = load i32** @a, align 8, !tbaa !3
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%arrayidx12 = getelementptr inbounds i32* %tmp10, i64 %idxprom
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%tmp11 = bitcast i32* %arrayidx12 to i8*
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; CHECK: prfm plil1strm
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call void @llvm.prefetch(i8* %tmp11, i32 0, i32 0, i32 0)
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%tmp12 = load i32** @a, align 8, !tbaa !3
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%arrayidx15 = getelementptr inbounds i32* %tmp12, i64 %idxprom
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%tmp13 = bitcast i32* %arrayidx3 to i8*
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; CHECK: prfm plil3keep
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call void @llvm.prefetch(i8* %tmp13, i32 0, i32 1, i32 0)
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%tmp14 = load i32** @a, align 8, !tbaa !3
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%arrayidx18 = getelementptr inbounds i32* %tmp14, i64 %idxprom
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%tmp15 = bitcast i32* %arrayidx6 to i8*
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; CHECK: prfm plil2keep
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call void @llvm.prefetch(i8* %tmp15, i32 0, i32 2, i32 0)
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%tmp16 = load i32** @a, align 8, !tbaa !3
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%arrayidx21 = getelementptr inbounds i32* %tmp16, i64 %idxprom
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%tmp17 = bitcast i32* %arrayidx9 to i8*
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; CHECK: prfm plil1keep
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call void @llvm.prefetch(i8* %tmp17, i32 0, i32 3, i32 0)
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%tmp18 = load i32** @a, align 8, !tbaa !3
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%arrayidx24 = getelementptr inbounds i32* %tmp18, i64 %idxprom
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%tmp19 = bitcast i32* %arrayidx12 to i8*
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; CHECK: prfm pstl1strm
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call void @llvm.prefetch(i8* %tmp19, i32 1, i32 0, i32 1)
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%tmp20 = load i32** @a, align 8, !tbaa !3
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%arrayidx27 = getelementptr inbounds i32* %tmp20, i64 %idxprom
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%tmp21 = bitcast i32* %arrayidx15 to i8*
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; CHECK: prfm pstl3keep
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call void @llvm.prefetch(i8* %tmp21, i32 1, i32 1, i32 1)
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%tmp22 = load i32** @a, align 8, !tbaa !3
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%arrayidx30 = getelementptr inbounds i32* %tmp22, i64 %idxprom
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%tmp23 = bitcast i32* %arrayidx18 to i8*
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; CHECK: prfm pstl2keep
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call void @llvm.prefetch(i8* %tmp23, i32 1, i32 2, i32 1)
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%tmp24 = load i32** @a, align 8, !tbaa !3
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%arrayidx33 = getelementptr inbounds i32* %tmp24, i64 %idxprom
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%tmp25 = bitcast i32* %arrayidx21 to i8*
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; CHECK: prfm pstl1keep
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call void @llvm.prefetch(i8* %tmp25, i32 1, i32 3, i32 1)
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ret void
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}
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declare void @llvm.prefetch(i8* nocapture, i32, i32, i32) nounwind
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!0 = metadata !{metadata !"int", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA"}
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!3 = metadata !{metadata !"any pointer", metadata !1}
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