Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f
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Xamarin Public Jenkins (auto-signing)
2019-01-08 08:22:36 +00:00
parent f32dbaf0b2
commit 212f6bafcb
28494 changed files with 359 additions and 3867025 deletions

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; This testcase ensures that CFL AA handles assignment cycles correctly
; RUN: opt < %s -disable-basicaa -cfl-anders-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
; RUN: opt < %s -aa-pipeline=cfl-anders-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
; CHECK-LABEL: Function: test_cycle
; CHECK: NoAlias: i64* %a, i64** %b
; CHECK: NoAlias: i64* %a, i64*** %c
; CHECK: NoAlias: i64** %b, i64*** %c
; CHECK: NoAlias: i64* %a, i64**** %d
; CHECK: NoAlias: i64** %b, i64**** %d
; CHECK: NoAlias: i64*** %c, i64**** %d
; CHECK: NoAlias: i64* %a, i64* %e
; CHECK: NoAlias: i64* %e, i64** %b
; CHECK: NoAlias: i64* %e, i64*** %c
; CHECK: MayAlias: i64* %a, i64* %f
; CHECK: NoAlias: i64* %f, i64** %b
; CHECK: NoAlias: i64* %f, i64*** %c
; CHECK: MayAlias: i64* %f, i64**** %d
; CHECK: MayAlias: i64* %e, i64* %f
define void @test_cycle() {
%a = alloca i64, align 8
%b = alloca i64*, align 8
%c = alloca i64**, align 8
%d = alloca i64***, align 8
store i64* %a, i64** %b
store i64** %b, i64*** %c
store i64*** %c, i64**** %d
%e = bitcast i64**** %d to i64*
store i64* %e, i64** %b
%f = load i64*, i64** %b
ret void
}