llvm-6502/test/Transforms/InstCombine/set.ll
Chris Lattner f7b447eb69 New tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7256 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-23 17:01:18 +00:00

102 lines
1.8 KiB
LLVM

; This test makes sure that these instructions are properly eliminated.
;
; RUN: as < %s | opt -instcombine | dis | not grep set
%X = uninitialized global int
bool %test1(int %A) {
%B = seteq int %A, %A
%C = seteq int* %X, null ; Never true
%D = and bool %B, %C
ret bool %D
}
bool %test2(int %A) {
%B = setne int %A, %A
%C = setne int* %X, null ; Never false
%D = or bool %B, %C
ret bool %D
}
bool %test3(int %A) {
%B = setlt int %A, %A
ret bool %B
}
bool %test4(int %A) {
%B = setgt int %A, %A
ret bool %B
}
bool %test5(int %A) {
%B = setle int %A, %A
ret bool %B
}
bool %test6(int %A) {
%B = setge int %A, %A
ret bool %B
}
bool %test7(uint %A) {
%B = setge uint %A, 0 ; true
ret bool %B
}
bool %test8(uint %A) {
%B = setlt uint %A, 0 ; false
ret bool %B
}
;; test operations on boolean values these should all be eliminated$a
bool %test9(bool %A) {
%B = setlt bool %A, false ; false
ret bool %B
}
bool %test10(bool %A) {
%B = setgt bool %A, true ; false
ret bool %B
}
bool %test11(bool %A) {
%B = setle bool %A, true ; true
ret bool %B
}
bool %test12(bool %A) {
%B = setge bool %A, false ; true
ret bool %B
}
bool %test13(bool %A, bool %B) {
%C = setge bool %A, %B ; A | ~B
ret bool %C
}
bool %test14(bool %A, bool %B) {
%C = seteq bool %A, %B ; ~(A ^ B)
ret bool %C
}
; These instructions can be turned into cast-to-bool
bool %test15(sbyte %A, short %A, int %A, long %A) {
%B1 = setne sbyte %A, 0
%B2 = seteq short %A, 0
%B3 = setne int %A, 0
%B4 = seteq long %A, 0
%C1 = or bool %B1, %B2
%C2 = or bool %B3, %B4
%D = or bool %C1, %C2
ret bool %D
}
bool %test16(uint %A) {
%B = and uint %A, 5
%C = seteq uint %B, 8 ; Is never true
ret bool %C
}
bool %test17(ubyte %A) {
%B = or ubyte %A, 1
%C = seteq ubyte %B, 2 ; Always false
ret bool %C
}