mirror of
https://github.com/c64scene-ar/llvm-6502.git
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5feab1631f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6598 91177308-0d34-0410-b5e6-96231b3b80d8
118 lines
1.9 KiB
LLVM
118 lines
1.9 KiB
LLVM
; This test makes sure that these instructions are properly eliminated.
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;
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; RUN: if as < %s | opt -instcombine | dis | grep -v '%OROK = or' | grep or\
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; RUN: then exit 1
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; RUN: else exit 0
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; RUN: fi
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implementation
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int %test1(int %A) {
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%B = or int %A, 0
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ret int %B
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}
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int %test2(int %A) {
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%B = or int %A, -1
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ret int %B
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}
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ubyte %test2a(ubyte %A) {
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%B = or ubyte %A, 255
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ret ubyte %B
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}
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bool %test3(bool %A) {
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%B = or bool %A, false
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ret bool %B
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}
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bool %test4(bool %A) {
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%B = or bool %A, true
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ret bool %B
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}
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bool %test5(bool %A) {
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%B = xor bool %A, false
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ret bool %B
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}
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int %test6(int %A) {
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%B = xor int %A, 0
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ret int %B
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}
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bool %test7(bool %A) {
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%B = xor bool %A, %A
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ret bool %B
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}
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int %test8(int %A) {
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%B = xor int %A, %A
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ret int %B
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}
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bool %test9(bool %A) {
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%B = or bool %A, %A
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ret bool %B
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}
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int %test10(int %A) {
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%B = or int %A, %A
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ret int %B
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}
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int %test11(int %A) { ; A ^ ~A == -1
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%NotA = xor int -1, %A
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%B = xor int %A, %NotA
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ret int %B
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}
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int %test12(int %A) { ; A | ~A == -1
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%NotA = xor int -1, %A
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%B = or int %A, %NotA
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ret int %B
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}
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uint %test13(uint %A) { ; (A|B)^B == A & (~B)
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%t1 = or uint %A, 123
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%r = xor uint %t1, 123
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ret uint %r
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}
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ubyte %test14(ubyte %A) {
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%B = or ubyte %A, 254
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%C = or ubyte %B, 1
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ret ubyte %C
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}
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ubyte %test15(ubyte %A) {
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%B = xor ubyte %A, 17
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%C = xor ubyte %B, 17
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ret ubyte %C
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}
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int %test16(int %A, int %B) { ; (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
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%A1 = and int %A, 7
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%B1 = and int %B, 128
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%OROK = xor int %A1, %B1
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ret int %OROK
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}
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ubyte %test17(ubyte %A, ubyte %B) { ; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2)
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%C = or ubyte %A, 1
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%D = or ubyte %B, 254
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%E = or ubyte %C, %D
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ret ubyte %E
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}
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ubyte %test18(bool %c) {
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%d = xor bool %c, true ; invert the condition
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br bool %d, label %True, label %False
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True:
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ret ubyte 1
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False:
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ret ubyte 3
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}
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