mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-18 12:29:21 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21777 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
677 B
LLVM
25 lines
677 B
LLVM
; RUN: llvm-as < %s | opt -reassociate -dce | llvm-dis | not grep '\(and\|sub\)'
|
|
|
|
int %test1(int %a, int %b) {
|
|
%tmp.2 = and int %b, %a
|
|
%tmp.4 = xor int %a, -1
|
|
%tmp.5 = and int %tmp.2, %tmp.4 ; (A&B)&~A == 0
|
|
ret int %tmp.5
|
|
}
|
|
|
|
int %test2(int %a, int %b) {
|
|
%tmp.1 = and int %a, 1234
|
|
%tmp.2 = and int %b, %tmp.1
|
|
%tmp.4 = xor int %a, -1
|
|
%tmp.5 = and int %tmp.2, %tmp.4 ; A&~A == 0
|
|
ret int %tmp.5
|
|
}
|
|
|
|
int %test3(int %b, int %a) {
|
|
%tmp.1 = add int %a, 1234
|
|
%tmp.2 = add int %b, %tmp.1
|
|
%tmp.4 = sub int 0, %a
|
|
%tmp.5 = add int %tmp.2, %tmp.4 ; (b+(a+1234))+-a -> b+1234
|
|
ret int %tmp.5
|
|
}
|