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llvm-mirror/test/Analysis/BasicAA/2003-12-11-ConstExprGEP.ll
Ahmed Bougacha 53c8a31ef4 [BasicAA] Add datalayouts to make some tests more useful. NFC.
Fixes PR22462: two of the tests have regressed for a while,
but were using CHECK-NOT to match "May:".  The actual output
was changed to "MayAlias:" at some point, which made the tests
useless.
Two others return MayAlias only because of a lack of analysis;
BasicAA returns PartialAlias in those cases, when a datalayout
is present.

llvm-svn: 228346
2015-02-05 21:10:14 +00:00

23 lines
691 B
LLVM

; This testcase consists of alias relations which should be completely
; resolvable by basicaa, but require analysis of getelementptr constant exprs.
; RUN: opt < %s -basicaa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
%T = type { i32, [10 x i8] }
@G = external global %T
; CHECK: Function: test
; CHECK-NOT: MayAlias:
define void @test() {
%D = getelementptr %T* @G, i64 0, i32 0
%E = getelementptr %T* @G, i64 0, i32 1, i64 5
%F = getelementptr i32* getelementptr (%T* @G, i64 0, i32 0), i64 0
%X = getelementptr [10 x i8]* getelementptr (%T* @G, i64 0, i32 1), i64 0, i64 5
ret void
}