view test/Analysis/BasicAA/2003-12-11-ConstExprGEP.ll @ 83:60c9769439b8 LLVM3.7

LLVM 3.7
author Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
date Wed, 18 Feb 2015 14:55:36 +0900
parents 95c75e76d11b
children afa8332a0e37
line wrap: on
line source

; 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
}