llvm/test/CodeGen/AArch64/arm64-prefetch.ll
Duncan P. N. Exon Smith 1ef70ff39b IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly.  These
are the matching assembly changes for the metadata/value split in
r223802.

  - Only use the `metadata` type when referencing metadata from a call
    intrinsic -- i.e., only when it's used as a `Value`.

  - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
    when referencing it from call intrinsics.

So, assembly like this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata !{i32 %v}, metadata !0)
      call void @llvm.foo(metadata !{i32 7}, metadata !0)
      call void @llvm.foo(metadata !1, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{metadata !3}, metadata !0)
      ret void, !bar !2
    }
    !0 = metadata !{metadata !2}
    !1 = metadata !{i32* @global}
    !2 = metadata !{metadata !3}
    !3 = metadata !{}

turns into this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata i32 %v, metadata !0)
      call void @llvm.foo(metadata i32 7, metadata !0)
      call void @llvm.foo(metadata i32* @global, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{!3}, metadata !0)
      ret void, !bar !2
    }
    !0 = !{!2}
    !1 = !{i32* @global}
    !2 = !{!3}
    !3 = !{}

I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines).  I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.

This is part of PR21532.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00

124 lines
4.3 KiB
LLVM

; 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 plil1strm
call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 0)
; CHECK: prfum plil3keep
call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 0)
; CHECK: prfum plil2keep
call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 0)
; CHECK: prfum plil1keep
call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 0)
; 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 plil1strm
call void @llvm.prefetch(i8* %tmp11, i32 0, i32 0, i32 0)
%tmp12 = load i32** @a, align 8, !tbaa !3
%arrayidx15 = getelementptr inbounds i32* %tmp12, i64 %idxprom
%tmp13 = bitcast i32* %arrayidx3 to i8*
; CHECK: prfm plil3keep
call void @llvm.prefetch(i8* %tmp13, i32 0, i32 1, i32 0)
%tmp14 = load i32** @a, align 8, !tbaa !3
%arrayidx18 = getelementptr inbounds i32* %tmp14, i64 %idxprom
%tmp15 = bitcast i32* %arrayidx6 to i8*
; CHECK: prfm plil2keep
call void @llvm.prefetch(i8* %tmp15, i32 0, i32 2, i32 0)
%tmp16 = load i32** @a, align 8, !tbaa !3
%arrayidx21 = getelementptr inbounds i32* %tmp16, i64 %idxprom
%tmp17 = bitcast i32* %arrayidx9 to i8*
; CHECK: prfm plil1keep
call void @llvm.prefetch(i8* %tmp17, i32 0, i32 3, i32 0)
%tmp18 = load i32** @a, align 8, !tbaa !3
%arrayidx24 = getelementptr inbounds i32* %tmp18, i64 %idxprom
%tmp19 = bitcast i32* %arrayidx12 to i8*
; CHECK: prfm pstl1strm
call void @llvm.prefetch(i8* %tmp19, i32 1, i32 0, i32 1)
%tmp20 = load i32** @a, align 8, !tbaa !3
%arrayidx27 = getelementptr inbounds i32* %tmp20, i64 %idxprom
%tmp21 = bitcast i32* %arrayidx15 to i8*
; CHECK: prfm pstl3keep
call void @llvm.prefetch(i8* %tmp21, i32 1, i32 1, i32 1)
%tmp22 = load i32** @a, align 8, !tbaa !3
%arrayidx30 = getelementptr inbounds i32* %tmp22, i64 %idxprom
%tmp23 = bitcast i32* %arrayidx18 to i8*
; CHECK: prfm pstl2keep
call void @llvm.prefetch(i8* %tmp23, i32 1, i32 2, i32 1)
%tmp24 = load i32** @a, align 8, !tbaa !3
%arrayidx33 = getelementptr inbounds i32* %tmp24, i64 %idxprom
%tmp25 = bitcast i32* %arrayidx21 to i8*
; CHECK: prfm pstl1keep
call void @llvm.prefetch(i8* %tmp25, i32 1, i32 3, i32 1)
ret void
}
declare void @llvm.prefetch(i8* nocapture, i32, i32, i32) nounwind
!0 = !{!"int", !1}
!1 = !{!"omnipotent char", !2}
!2 = !{!"Simple C/C++ TBAA"}
!3 = !{!"any pointer", !1}