; This test makes sure that these instructions are properly eliminated.
;
-; RUN: if as < %s | opt -instcombine | dis | grep or\
+; RUN: if as < %s | opt -instcombine | dis | grep -v '%OROK = or' | grep or\
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
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
%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
+}
+
+int %test16(int %A, int %B) { ; (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
+ %A1 = and int %A, 7
+ %B1 = and int %B, 128
+ %OROK = xor int %A1, %B1
+ ret int %OROK
+}
+
+ubyte %test17(ubyte %A, ubyte %B) { ; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2)
+ %C = or ubyte %A, 1
+ %D = or ubyte %B, 254
+ %E = or ubyte %C, %D
+ ret ubyte %E
+}
+
+ubyte %test18(bool %c) {
+ %d = xor bool %c, true ; invert the condition
+ br bool %d, label %True, label %False
+True:
+ ret ubyte 1
+False:
+ ret ubyte 3
+}
+