llvm-6502/test/Transforms/GlobalDCE/2009-01-05-DeadAliases.ll

; RUN: opt < %s -globaldce -S | not grep @D
; RUN: opt < %s -globaldce -S | grep @L | count 3

@A = global i32 0
@D = alias internal i32* @A
@L1 = alias i32* @A
@L2 = alias internal i32* @L1
@L3 = alias i32* @L2
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-11 18:01:28 +00:00			`; RUN: opt < %s -globaldce -S \| not grep @D`
			`; RUN: opt < %s -globaldce -S \| grep @L \| count 3`
Delete unused global aliases with internal linkage. In fact this also deletes those with linkonce linkage, however this is currently dead because for the moment aliases aren't allowed to have this linkage type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61742 91177308-0d34-0410-b5e6-96231b3b80d8 2009-01-05 20:37:33 +00:00
			`@A = global i32 0`
			`@D = alias internal i32* @A`
			`@L1 = alias i32* @A`
			`@L2 = alias internal i32* @L1`
			`@L3 = alias i32* @L2`