File: 2003-12-11-ConstExprGEP.ll

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (22 lines) | stat: -rw-r--r-- 723 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; 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, %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
}