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llvm-mirror/test/Analysis/ScopedNoAliasAA/basic.ll
Duncan P. N. Exon Smith 9c5542c040 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.

llvm-svn: 224257
2014-12-15 19:07:53 +00:00

28 lines
1.4 KiB
LLVM

; RUN: opt < %s -basicaa -scoped-noalias -aa-eval -evaluate-aa-metadata -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @foo1(float* nocapture %a, float* nocapture readonly %c) #0 {
entry:
; CHECK-LABEL: Function: foo1
%0 = load float* %c, align 4, !alias.scope !1
%arrayidx.i = getelementptr inbounds float* %a, i64 5
store float %0, float* %arrayidx.i, align 4, !noalias !1
%1 = load float* %c, align 4
%arrayidx = getelementptr inbounds float* %a, i64 7
store float %1, float* %arrayidx, align 4
ret void
; CHECK: NoAlias: %0 = load float* %c, align 4, !alias.scope !0 <-> store float %0, float* %arrayidx.i, align 4, !noalias !0
; CHECK: MayAlias: %0 = load float* %c, align 4, !alias.scope !0 <-> store float %1, float* %arrayidx, align 4
; CHECK: MayAlias: %1 = load float* %c, align 4 <-> store float %0, float* %arrayidx.i, align 4, !noalias !0
; CHECK: MayAlias: %1 = load float* %c, align 4 <-> store float %1, float* %arrayidx, align 4
; CHECK: NoAlias: store float %1, float* %arrayidx, align 4 <-> store float %0, float* %arrayidx.i, align 4, !noalias !0
}
attributes #0 = { nounwind uwtable }
!0 = !{!0, !"some domain"}
!1 = !{!1, !0, !"some scope"}