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; Tests to make sure elimination of casts is working correctly
; RUN: llvm-as < %s | opt -instcombine -die | llvm-dis | grep '%c' | not grep cast
implementation
int %test1(int %A) {
%c1 = cast int %A to uint
%c2 = cast uint %c1 to int
ret int %c2
}
ulong %test2(ubyte %A) {
%c1 = cast ubyte %A to ushort
%c2 = cast ushort %c1 to uint
%Ret = cast uint %c2 to ulong
ret ulong %Ret
}
ulong %test3(ulong %A) { ; This function should just use bitwise AND
%c1 = cast ulong %A to ubyte
%c2 = cast ubyte %c1 to ulong
ret ulong %c2
}
uint %test4(int %A, int %B) {
%COND = setlt int %A, %B
%c = cast bool %COND to ubyte ; Booleans are unsigned integrals
%result = cast ubyte %c to uint ; for the cast elim purpose
ret uint %result
}
int %test5(bool %B) {
%c = cast bool %B to ubyte ; This cast should get folded into
%result = cast ubyte %c to int ; this cast
ret int %result
}
int %test6(ulong %A) {
%c1 = cast ulong %A to uint
%res = cast uint %c1 to int
ret int %res
}
long %test7(bool %A) {
%c1 = cast bool %A to int
%res = cast int %c1 to long
ret long %res
}
long %test8(sbyte %A) {
%c1 = cast sbyte %A to ulong
%res = cast ulong %c1 to long
ret long %res
}
short %test9(short %A) {
%c1 = cast short %A to int
%c2 = cast int %c1 to short
ret short %c2
}
short %test10(short %A) {
%c1 = cast short %A to uint
%c2 = cast uint %c1 to short
ret short %c2
}
declare void %varargs(int, ...)
void %test11(int* %P) {
%c = cast int* %P to short*
call void(int, ...)* %varargs(int 5, short* %c)
ret void
}
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