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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
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Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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33
external/llvm/test/Analysis/CFLAliasAnalysis/Andersen/interproc-ret-escape.ll vendored
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@ -1,33 +0,0 @@
; This testcase ensures that CFL AA answers queries soundly when callee tries
; to return an escaped pointer
; 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
declare noalias i8* @malloc(i64)
declare void @opaque(i32*)
define i32* @return_escaped_callee() {
%ptr = call noalias i8* @malloc(i64 8)
%ptr_cast = bitcast i8* %ptr to i32*
call void @opaque(i32* %ptr_cast)
ret i32* %ptr_cast
}
; CHECK-LABEL: Function: test_return_escape
; CHECK: NoAlias: i32* %a, i32** %x
; CHECK: NoAlias: i32* %b, i32** %x
; CHECK: NoAlias: i32* %a, i32* %b
; CHECK: NoAlias: i32* %c, i32** %x
; CHECK: NoAlias: i32* %a, i32* %c
; CHECK: NoAlias: i32* %b, i32* %c
; CHECK: NoAlias: i32* %a, i32* %d
; CHECK: MayAlias: i32* %b, i32* %d
; CHECK: MayAlias: i32* %c, i32* %d
define void @test_return_escape(i32** %x) {
%a = alloca i32, align 4
%b = call i32* @return_escaped_callee()
%c = call i32* @return_escaped_callee()
%d = load i32*, i32** %x
ret void
}