| ; PR1280 - we should be able to reduce this function to a trunc/sext but it |
| ; would involve using a bit width (24) that doesn't match a size that |
| ; the back end can handle. This test makes sure that such a transform |
| ; is not done. It should be removed when code gen supports "funny" |
| ; bit widths. |
| |
| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {add i49.*-8388608} |
| |
| define i49 @test5(i49 %x) { |
| ;; If we have ADD(XOR(AND(X, 0xFF), 0x80), 0xF..F80), it's a sext. |
| %X = and i49 %x, 16777215 ; 0x0000000ffffff |
| %tmp.2 = xor i49 %X, 8388608 ; 0x0000000800000 |
| %tmp.4 = add i49 %tmp.2, -8388608 ; 0x1FFFFFF800000 |
| ret i49 %tmp.4 |
| } |
