New testcase

[oota-llvm.git] / test / Transforms / InstCombine / or.ll

diff --git a/test/Transforms/InstCombine/or.ll b/test/Transforms/InstCombine/or.ll
index 1f85ea2c49cd7fe8cd5bcd9d3e4a7d25c0f4ff06..e01bb11bf580472238a890556280c1f82bfac213 100644 (file)
--- a/test/Transforms/InstCombine/or.ll
+++ b/test/Transforms/InstCombine/or.ll
@@ -1,62 +1,117 @@
 ; 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
 
 implementation
 
-int "test1"(int %A) {
+int %test1(int %A) {
        %B = or int %A, 0
        ret int %B
 }
 
-int "test2"(int %A) {
+int %test2(int %A) {
        %B = or int %A, -1
        ret int %B
 }
 
-bool "test3"(bool %A) {
+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) {
+bool %test4(bool %A) {
        %B = or bool %A, true
        ret bool %B
 }
 
-bool "test5"(bool %A) {
+bool %test5(bool %A) {
        %B = xor bool %A, false
        ret bool %B
 }
 
-int "test6"(int %A) {
+int %test6(int %A) {
        %B = xor int %A, 0
        ret int %B
 }
 
-bool "test7"(bool %A) {
+bool %test7(bool %A) {
        %B = xor bool %A, %A
        ret bool %B
 }
 
-int "test8"(int %A) {
+int %test8(int %A) {
        %B = xor int %A, %A
        ret int %B
 }
 
-bool "test9"(bool %A) {
+bool %test9(bool %A) {
        %B = or bool %A, %A
        ret bool %B
 }
 
-int "test10"(int %A) {
+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
+}
+
+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
+}