mirror of
https://github.com/RPCS3/llvm-mirror.git
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e2cd2f7591
llvm-svn: 6955
89 lines
1.6 KiB
LLVM
89 lines
1.6 KiB
LLVM
; This test makes sure that these instructions are properly eliminated.
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;
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; RUN: as < %s | opt -instcombine | dis | grep-not set
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%X = uninitialized global int
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bool %test1(int %A) {
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%B = seteq int %A, %A
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%C = seteq int* %X, null ; Never true
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%D = and bool %B, %C
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ret bool %D
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}
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bool %test2(int %A) {
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%B = setne int %A, %A
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%C = setne int* %X, null ; Never false
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%D = or bool %B, %C
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ret bool %D
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}
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bool %test3(int %A) {
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%B = setlt int %A, %A
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ret bool %B
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}
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bool %test4(int %A) {
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%B = setgt int %A, %A
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ret bool %B
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}
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bool %test5(int %A) {
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%B = setle int %A, %A
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ret bool %B
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}
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bool %test6(int %A) {
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%B = setge int %A, %A
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ret bool %B
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}
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bool %test7(uint %A) {
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%B = setge uint %A, 0 ; true
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ret bool %B
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}
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bool %test8(uint %A) {
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%B = setlt uint %A, 0 ; false
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ret bool %B
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}
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;; test operations on boolean values these should all be eliminated$a
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bool %test9(bool %A) {
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%B = setlt bool %A, false ; false
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ret bool %B
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}
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bool %test10(bool %A) {
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%B = setgt bool %A, true ; false
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ret bool %B
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}
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bool %test11(bool %A) {
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%B = setle bool %A, true ; true
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ret bool %B
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}
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bool %test12(bool %A) {
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%B = setge bool %A, false ; true
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ret bool %B
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}
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bool %test13(bool %A, bool %B) {
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%C = setge bool %A, %B ; A | ~B
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ret bool %C
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}
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bool %test14(bool %A, bool %B) {
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%C = seteq bool %A, %B ; ~(A ^ B)
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ret bool %C
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}
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; These instructions can be turned into cast-to-bool
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bool %test15(sbyte %A, short %A, int %A, long %A) {
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%B1 = setne sbyte %A, 0
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%B2 = seteq short %A, 0
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%B3 = setne int %A, 0
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%B4 = seteq long %A, 0
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%C1 = or bool %B1, %B2
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%C2 = or bool %B3, %B4
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%D = or bool %C1, %C2
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ret bool %D
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}
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