mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
f2f6ce65b7
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
43 lines
914 B
LLVM
43 lines
914 B
LLVM
; This test makes sure that the xor instructions are properly eliminated
|
|
; when arbitrary precision integers are used.
|
|
|
|
; RUN: opt < %s -instcombine -S | not grep xor
|
|
|
|
define i33 @test1(i33 %A) {
|
|
%B = xor i33 %A, -1
|
|
%C = xor i33 %B, -1
|
|
ret i33 %C
|
|
}
|
|
|
|
define i1 @test2(i52 %A, i52 %B) {
|
|
%cond = icmp ule i52 %A, %B ; Can change into uge
|
|
%Ret = xor i1 %cond, true
|
|
ret i1 %Ret
|
|
}
|
|
|
|
; Test that demorgans law can be instcombined
|
|
define i47 @test3(i47 %A, i47 %B) {
|
|
%a = xor i47 %A, -1
|
|
%b = xor i47 %B, -1
|
|
%c = and i47 %a, %b
|
|
%d = xor i47 %c, -1
|
|
ret i47 %d
|
|
}
|
|
|
|
; Test that demorgens law can work with constants
|
|
define i61 @test4(i61 %A, i61 %B) {
|
|
%a = xor i61 %A, -1
|
|
%c = and i61 %a, 5 ; 5 = ~c2
|
|
%d = xor i61 %c, -1
|
|
ret i61 %d
|
|
}
|
|
|
|
; test the mirror of demorgans law...
|
|
define i71 @test5(i71 %A, i71 %B) {
|
|
%a = xor i71 %A, -1
|
|
%b = xor i71 %B, -1
|
|
%c = or i71 %a, %b
|
|
%d = xor i71 %c, -1
|
|
ret i71 %d
|
|
}
|