57d57b1afd
With opaque pointers, we cannot use the pointer element type to determine the LocationSize for the AA query. Instead, -aa-eval tests are now required to have an explicit load or store for any pointer they want to compute alias results for, and the load/store types are used to determine the location size. This may affect ordering of results, and sorting within one result, as the type is not considered part of the sorted string anymore. To somewhat minimize the churn, printing still uses faux typed pointer notation.
31 lines
1.6 KiB
LLVM
31 lines
1.6 KiB
LLVM
; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) #0
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declare void @llvm.experimental.noalias.scope.decl(metadata)
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define void @test1(i8* %P, i8* %Q) nounwind ssp {
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load i8, i8* %P
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load i8, i8* %Q
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tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
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ret void
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; CHECK-LABEL: Function: test1:
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; CHECK: MayAlias: i8* %P, i8* %Q
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; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
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; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
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; CHECK: NoModRef: tail call void @llvm.experimental.noalias.scope.decl(metadata !0) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
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; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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}
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attributes #0 = { nounwind }
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!0 = !{ !1 }
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!1 = distinct !{ !1, !2, !"test1: var" }
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!2 = distinct !{ !2, !"test1" }
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