Add two new patterns that instcombine should or does handle

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2563 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-05-08 23:15:01 +00:00
parent 4874680b65
commit d086fb20eb

View File

@ -23,3 +23,15 @@ int "test3"(int %A) {
%C = sub int 0, %B ; C = -B = A
ret int %C
}
int "test4"(int %A, int %x) {
%B = sub int 0, %A
%C = sub int %x, %B
ret int %C
}
int "test5"(int %A, int %B, int %C) {
%D = sub int %B, %C
%E = sub int %A, %D
ret int %E
}