llvm-6502/test/Transforms/InstCombine/or.ll
Chris Lattner 1b77300154 * Add testcases for associative operators
* Add testcase for or ubyte, 255 which was broken before


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5735 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-10 22:43:56 +00:00

94 lines
1.4 KiB
LLVM

; This test makes sure that these instructions are properly eliminated.
;
; RUN: if as < %s | opt -instcombine | dis | grep or\
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
implementation
int %test1(int %A) {
%B = or int %A, 0
ret int %B
}
int %test2(int %A) {
%B = or int %A, -1
ret int %B
}
ubyte %test2a(ubyte %A) {
%B = or ubyte %A, 255
ret ubyte %B
}
bool %test3(bool %A) {
%B = or bool %A, false
ret bool %B
}
bool %test4(bool %A) {
%B = or bool %A, true
ret bool %B
}
bool %test5(bool %A) {
%B = xor bool %A, false
ret bool %B
}
int %test6(int %A) {
%B = xor int %A, 0
ret int %B
}
bool %test7(bool %A) {
%B = xor bool %A, %A
ret bool %B
}
int %test8(int %A) {
%B = xor int %A, %A
ret int %B
}
bool %test9(bool %A) {
%B = or bool %A, %A
ret bool %B
}
int %test10(int %A) {
%B = or int %A, %A
ret int %B
}
int %test11(int %A) { ; A ^ ~A == -1
%NotA = xor int -1, %A
%B = xor int %A, %NotA
ret int %B
}
int %test12(int %A) { ; A | ~A == -1
%NotA = xor int -1, %A
%B = or int %A, %NotA
ret int %B
}
uint %test13(uint %A) { ; (A|B)^B == A & (~B)
%t1 = or uint %A, 123
%r = xor uint %t1, 123
ret uint %r
}
ubyte %test14(ubyte %A) {
%B = or ubyte %A, 254
%C = or ubyte %B, 1
ret ubyte %C
}
ubyte %test15(ubyte %A) {
%B = xor ubyte %A, 17
%C = xor ubyte %B, 17
ret ubyte %C
}