forked from OSchip/llvm-project
62 lines
2.0 KiB
LLVM
62 lines
2.0 KiB
LLVM
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; This testcase ensures that AliasAttrs are propagated not only on the same
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; level but also downward.
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; RUN: opt < %s -disable-basicaa -cfl-anders-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; RUN: opt < %s -aa-pipeline=cfl-anders-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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; CHECK-LABEL: Function: test_attr_below
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; CHECK: MayAlias: i64* %q, i64*** %p
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; CHECK: NoAlias: i64* %esc, i64*** %p
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; CHECK: NoAlias: i64* %esc, i64* %q
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; CHECK: MayAlias: i64* %unknown, i64*** %p
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; CHECK: MayAlias: i64* %q, i64* %unknown
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; CHECK: MayAlias: i64* %esc, i64* %unknown
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; CHECK: MayAlias: i64* %q, i64** %pdrf
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; CHECK: MayAlias: i64* %esc, i64** %pdrf
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; CHECK: MayAlias: i64* %unknown, i64** %pdrf
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; CHECK: MayAlias: i64* %pdrf2, i64* %q
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; CHECK: MayAlias: i64* %esc, i64* %pdrf2
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; CHECK: MayAlias: i64* %pdrf2, i64* %unknown
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define void @test_attr_below(i64*** %p, i64* %q) {
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%esc = alloca i64, align 8
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%escint = ptrtoint i64* %esc to i64
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%unknown = inttoptr i64 %escint to i64*
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%pdrf = load i64**, i64*** %p
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%pdrf2 = load i64*, i64** %pdrf
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ret void
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}
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; CHECK-LABEL: Function: test_attr_assign_below
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; CHECK: MayAlias: i64** %sel, i64*** %p
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; CHECK: MayAlias: i64* %q, i64** %sel
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; CHECK: MayAlias: i64** %a, i64** %sel
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; CHECK: MayAlias: i64** %pdrf, i64** %sel
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; CHECK: MayAlias: i64** %c, i64*** %p
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; CHECK: MayAlias: i64* %q, i64** %c
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; CHECK: MayAlias: i64** %a, i64** %c
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; CHECK: MayAlias: i64** %c, i64** %pdrf
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; CHECK: MayAlias: i64** %c, i64** %sel
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; CHECK: MayAlias: i64* %d, i64*** %p
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; CHECK: MayAlias: i64* %d, i64* %q
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; CHECK: MayAlias: i64* %d, i64** %pdrf
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; CHECK: MayAlias: i64* %d, i64** %sel
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define void @test_attr_assign_below(i64*** %p, i64* %q, i1 %cond) {
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%a = alloca i64*, align 8
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%pdrf = load i64**, i64*** %p
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%sel = select i1 %cond, i64** %a, i64** %pdrf
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%b = alloca i64**, align 8
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store i64** %sel, i64*** %b
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%c = load i64**, i64*** %b
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%d = load i64*, i64** %c
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ret void
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}
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