| ; This test contains two cast instructions that cannot be eliminated. If the |
| ; input of the "test" function is negative, it should be correctly converted |
| ; to a 32 bit version of the number with all upper 16 bits clear (ushort->uint |
| ; involves no sign extension). Optimizing this to a single cast is invalid! |
| ; |
| ; RUN: llvm-as < %s | opt -raise -q | lli |
| ; |
| implementation |
| |
| uint "test"(short %argc) |
| begin |
| %cast223 = cast short %argc to ushort ; <ushort> [#uses=1] |
| %cast114 = cast ushort %cast223 to uint ; <uint> [#uses=1] |
| ret uint %cast114 |
| end |
| |
| int "main"() |
| begin |
| %Ret = call uint %test(short -1) |
| %test = cast uint %Ret to int |
| %Res = seteq int %test, -1 ; If it returns -1 as int, it's a failure |
| %Res = cast bool %Res to int |
| ret int %Res |
| end |
