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llvm-mirror/test/Analysis/BasicAA/2003-12-11-ConstExprGEP.ll
2020-06-26 14:58:01 -07:00

23 lines
724 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 -basic-aa -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, %T* @G, i64 0, i32 0
%E = getelementptr %T, %T* @G, i64 0, i32 1, i64 5
%F = getelementptr i32, i32* getelementptr (%T, %T* @G, i64 0, i32 0), i64 0
%X = getelementptr [10 x i8], [10 x i8]* getelementptr (%T, %T* @G, i64 0, i32 1), i64 0, i64 5
ret void
}