New testcase. If one side of and/or is known to be 0/-1, it doesn't matter

if the other side is overdefined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18806 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-12-11 23:14:40 +00:00
parent 74be3a5794
commit e0e50dbb9f

View File

@ -0,0 +1,8 @@
; RUN: llvm-as < %s | opt -sccp | llvm-dis | grep 'ret int 0'
; Test that SCCP has basic knowledge of when and/or nuke overdefined values.
int %test(int %X) {
%Y = and int %X, 0
ret int %Y
}